CN104789100A - Waterborne polyurethane dampproof anticorrosive coating and preparation method thereof - Google Patents
Waterborne polyurethane dampproof anticorrosive coating and preparation method thereof Download PDFInfo
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- CN104789100A CN104789100A CN201510143454.9A CN201510143454A CN104789100A CN 104789100 A CN104789100 A CN 104789100A CN 201510143454 A CN201510143454 A CN 201510143454A CN 104789100 A CN104789100 A CN 104789100A
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- China
- Prior art keywords
- agent
- anticorrosive coating
- parts
- pigment
- aqueous polyurethane
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- 238000000576 coating method Methods 0.000 title claims abstract description 72
- 239000011248 coating agent Substances 0.000 title claims abstract description 67
- 239000004814 polyurethane Substances 0.000 title claims abstract description 46
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 239000000839 emulsion Substances 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002131 composite material Substances 0.000 claims abstract description 22
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims abstract description 20
- -1 packing Substances 0.000 claims abstract description 20
- 239000007822 coupling agent Substances 0.000 claims abstract description 19
- 239000000049 pigment Substances 0.000 claims abstract description 18
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 239000000706 filtrate Substances 0.000 claims abstract description 11
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 9
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims abstract description 6
- 239000006185 dispersion Substances 0.000 claims description 20
- 239000012752 auxiliary agent Substances 0.000 claims description 15
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 14
- 229920000058 polyacrylate Polymers 0.000 claims description 14
- 229920002545 silicone oil Polymers 0.000 claims description 14
- 239000000945 filler Substances 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 8
- 239000000047 product Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 239000007787 solid Substances 0.000 claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 229960003511 macrogol Drugs 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 5
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 4
- 239000006229 carbon black Substances 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- SYECJBOWSGTPLU-UHFFFAOYSA-N hexane-1,1-diamine Chemical compound CCCCCC(N)N SYECJBOWSGTPLU-UHFFFAOYSA-N 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 229920006389 polyphenyl polymer Polymers 0.000 claims description 4
- 239000004902 Softening Agent Substances 0.000 claims description 3
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 claims description 3
- 231100000252 nontoxic Toxicity 0.000 claims description 3
- 230000003000 nontoxic effect Effects 0.000 claims description 3
- 239000013530 defoamer Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 230000009967 tasteless effect Effects 0.000 claims description 2
- 230000002335 preservative effect Effects 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract 4
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 abstract 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 abstract 2
- 239000000654 additive Substances 0.000 abstract 2
- 239000002270 dispersing agent Substances 0.000 abstract 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 abstract 2
- 239000003755 preservative agent Substances 0.000 abstract 2
- 238000002156 mixing Methods 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 description 12
- 229920000647 polyepoxide Polymers 0.000 description 12
- 239000003973 paint Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 9
- 239000011527 polyurethane coating Substances 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 235000010215 titanium dioxide Nutrition 0.000 description 6
- 239000004593 Epoxy Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 239000004971 Cross linker Substances 0.000 description 3
- 229920001730 Moisture cure polyurethane Polymers 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000002421 anti-septic effect Effects 0.000 description 2
- 239000007767 bonding agent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000037452 priming Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 208000031320 Teratogenesis Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004523 agglutinating effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- DNXNYEBMOSARMM-UHFFFAOYSA-N alumane;zirconium Chemical compound [AlH3].[Zr] DNXNYEBMOSARMM-UHFFFAOYSA-N 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000001723 curing Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000013035 low temperature curing Methods 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000002703 mutagenesis Methods 0.000 description 1
- 231100000350 mutagenesis Toxicity 0.000 description 1
- 239000007908 nanoemulsion Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 150000003141 primary amines Chemical class 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
- C08G18/3203—Polyhydroxy compounds
- C08G18/3206—Polyhydroxy compounds aliphatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/58—Epoxy resins
- C08G18/584—Epoxy resins having nitrogen
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/6505—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6511—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38 compounds of group C08G18/3203
- C08G18/6517—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38 compounds of group C08G18/3203 having at least three hydroxy groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses waterborne polyurethane dampproof anticorrosive coating and a preparation method thereof. The waterborne polyurethane dampproof anticorrosive coating comprises modified polyurethane composite emulsion, packing, hydroxyethyl cellulose, a preservative, methylsilicone oil, phthalic acid dibutyl ester, a zirconium-aluminic acid ester coupling agent, pigment, a hardening agent, an acrylic ester solution, a dispersing agent, additives and water. The preparation method comprises the following steps: uniformly stirring the water, dispersing agent, pigment, packing, zirconium-aluminic acid ester coupling agent and methylsilicone oil, and dispersing for 61-70 minutes by using a sand mill so as to prepare pigment packing slurry; adding the modified polyurethane composite emulsion into a container, adding the pigment packing slurry, the preservative, the acrylic ester solution and the additives when stirring for 21-30 minutes at the stirring speed of 410-450r/minute, and after stirring for 5-10 minutes, adding hydroxyethyl cellulose; finally, filtering by using a silk filtering net of 160 meshes, and mixing and stirring the obtained filtrate with 5-7 parts of the hardening agent, thereby obtaining the waterborne polyurethane dampproof anticorrosive coating. The waterborne polyurethane dampproof anticorrosive coating has the characteristics of good chemical resistance, good water resistance, good damproof effect, high glossiness, long film service life and the like.
Description
Technical field
The present invention relates to a kind of preparation method of coating, particularly a kind of aqueous polyurethane moisture-proof anticorrosive coating, belongs to chemical composition and preparing technical field thereof.
Background technology
Following coating is allowed in regulation in order to study volatile organic compounds (VOC), up to now, coating scientists creates a series of brand-new coating and application techniques system: powder coating, radiation curable coating (UV/EB system), water-borne coatings, high solid coating and no-solvent type coating, and wherein powder coating and radiation curable coating use Special Equipment in construction; Although high solid coating very close to usual vehicle type coating, still has its inconvenient part in performance in construction, e.g., preparation of construction is difficult to cleaning and hot-fluid extension phenomenon etc.; And no-solvent type coating generally refers to no-solvent type epoxy flooring coating more, its use range is narrower; Therefore, water-borne coatings is one of coating variety most with prospects, during especially most of water-borne coatings construction, does not need special preparation of construction, need not toast heating cure, applied widely, application scenario is many, therefore gets most of the attention.Current water-borne coatings achieves significant progress, coating 4 large synthetic resins: Synolac, acrylic resin, epoxy resin and urethane resin have achieved Water-borne modification to a certain degree all.
Wherein, most widely usedly aqueous polyurethane coating will be belonged to.Aqueous polyurethane coating is base-material with waterborne polyurethane resin and take water as a class coating of dispersion medium, not only there is nontoxic odorless, pollution-free, nonflammable, cost is low, not easy damaged by coating surface, construction easily, be easy to the advantages such as cleaning, also there is the intrinsic high rigidity of solvent borne polyurethane coating, the excellent properties such as wear-resistant, be thus widely used in many fields such as woodwork coating, car paint, building coating, plastic paint, paper coating and fabric and leather finish etc.But there is shortcoming is do not have preservative property, in time returning Nan Tian's gas, the body of wall of polyurethane coating is used to be subject to certain corrodibility.
Existing have inorganic corrosion-resistant abrasion coating and organic anti-corrosive wear-resistant paint for the coating covered with paint, lacquer, colour wash, etc. in material surface.Inorganic anti-corrosion wear-resistant paint is all generally take inorganic bonding agent as the water soluble paint of matrix, its water tolerance and erosion resistance ability poor, be not suitable for the operating mode of wet environment work; General organic anti-corrosive wear-resistant paint is then be bonding agent with epoxy resin, adds certain macrobead ceramic aggregate and solidifying agent obtains.Although epoxy resin has excellent bonding force and physical strength, lacking toughness, property is crisp.The present invention aims to provide a kind of anticorrosion, corrosion protection, aqueous polyurethane coating that wear resistance is good, thus alleviates difficulty of construction, have also been enlarged the use range of water-borne coatings.
Summary of the invention
Object of the present invention provides a kind of aqueous polyurethane moisture-proof anticorrosive coating and preparation method thereof, and this coating has heat insulation, absorption acoustic energy, reduces noise, eliminates noise, high durable, environmental protection, not easily aging, long-acting effect.
The present invention is achieved in that
Aqueous polyurethane moisture-proof anticorrosive coating, make the raw material that this coating comprises following parts by weight:
Modified polyurethane composite emulsion 40 ~ 50 parts;
Filler 3 ~ 10 parts;
Natvosol 0.1 ~ 0.3 part;
Methyl-silicone oil 0.1 ~ 0.3 part
Dibutyl phthalate 0.1 ~ 0.3 part;
Zirconium-aluminate coupling agent 0.5 ~ 1 part;
Pigment 3 ~ 5 parts;
Set agent 5 ~ 7 parts;
Polyacrylate solution 0.1 ~ 0.3 part;
Dispersion agent 3 ~ 5 parts;
Auxiliary agent 0.1 ~ 0.3 part;
5 ~ 10 parts, water;
Sanitas 5 ~ 7 parts.
Described modified polyurethane composite emulsion with diphenylmethanediisocyanate, oligopolymer dibasic alcohol for main raw material, TriMethylolPropane(TMP) is auxiliary agent, epoxy resin-diethanolamine affixture is internal crosslinker, epoxy resin is properties-correcting agent, be polymerized, obtained solid content is more than 35%, particle diameter is low to moderate 20 ~ 30 nm, molecular weight is the composite emulsion of 6000-8000, and it has good physicals, shock resistance and excellent in abrasion resistance.The preparation method that this emulsion is concrete is: diphenylmethanediisocyanate and oligopolymer dibasic alcohol are reacted, prepare linear polyurethane performed polymer, add TriMethylolPropane(TMP) reaction and produce branched structure, carboxyl is introduced by chemical reaction, obtain the base polyurethane prepolymer for use as containing COOH, add epoxy resin-diethanolamine affixture as internal crosslinker, prepare the performed polymer of microgel structure.In performed polymer, add epoxy resin, make epoxy group(ing) in epoxy resin and secondary hydroxyl and isocyanic ester radical reaction, then and salify, add deionized water dispersion and emulsion, obtained modified polyurethane microgel composite Nano emulsion of the present invention.In this process, aqueous polyurethane is made to have hydrophobic branched structure by adding internal crosslinker, this structure forms hydrophobic microcell turning over Cheng Zhonghui mutually, and epoxy resin penetrates in this structure, contributes to the blended compatible of system, can further to performed polymer chain extension and crosslinked, form the structure that cross-linking density is higher, meanwhile, the hydrophobic region of aqueous polyurethane can be made to have epoxy backbone chain, more be conducive to improving consistency, thus the add-on of epoxy resin is improved.
Described filler to be particle diameter be mica powder, one or more in titanium dioxide and talcum powder of 10-300 μm.
Described Natvosol is a kind of white or faint yellow; tasteless, nontoxic threadiness or pulverulent solids; there is the performances such as thickening, suspension, bonding, emulsification, dispersion, maintenance moisture and protective colloid, make thickening material in the present invention, emulsion stabilizer is applied in coating.
Described dibutyl phthalate is a kind of softening agent, and goods can be made to have good flexibility, and stability, resistance to deflection, agglutinating value(of coal) and water-repellancy are all better than other softening agent.
Described methyl-silicone oil is a kind of defoamer, and it has excellent physical property, can be directly used in moisture-proof insulation, damping, damping, froth breaking, lubrication, the aspects such as polishing.
Described zirconium-aluminate coupling agent is a kind of amphiprotic substance, there is the effect of specific function " molecular bridge ", its one end can with filler generation chemical reaction, formed strong chemical bond and, the other end can form electrostatical binding with the electric charge of fiber surface, thus the material making two kinds of nature differences very large combines securely.The reaction of such coupling agent and filler is mainly realized by the chelating between zirconium-aluminium, irreversible to inorganic materials interface modification, not only can improve its dispersed and reduction system viscosity, and owing to producing the effect of organo-functional group, also can improve the bonding force of filler and base material.By adding zirconium-aluminate coupling agent, significantly can reduce the viscosity of inorganic fill system of the present invention, improve its mobility, being applied to coating of the present invention can reduce viscosity, improves the quality of products.
Described pigment is one or more in titanium dioxide, carbon black and iron oxide red.
Described set agent is one or more in quadrol, hexanediamine and diethylenetriamine, and the activity of this set agent of three kinds is all very large, cross linking of epoxy resin can be solidified in room temperature; Primary amine and the solidification of secondary amine to epoxy resin open epoxide group by the reactive hydrogen on nitrogen-atoms, and make it crosslinking curing.
Described polyacrylate solution is a kind of flow agent, can form good luster and water-fast film, and firmly, incrust, at room temperature pliable and tough and flexible, good weatherability, can be applicable in decorative paint in bonding.
Described dispersion agent is Macrogol 200 or poly(oxyethylene glycol) 400.These two kinds of materials are present in water soluble disperse system as dispersion agent, solubilizing agent, wetting agent and solvent.
Described auxiliary agent is one or more in polydimethylsiloxane, polyphenyl methyl siloxane and polyether-modified polydimethylsiloxane.These three kinds of chemical assistants can improve film Lubricity.
Described sanitas is MIT, it is a kind of highly active sterilant, to the minimum inhibitory concentration of many microorganisms all at below 10mg/l, have extremely strong killing and restraining effect to bacterium, mould, yeast, algae, and lower concentration just with effect.This product security is good, and toxicity grading belongs to low toxicity, biodegradable, without teratogenesis mutagenesis reaction, more stable under acidity and oxidative environment; Join in coating antibacterial, the antiseptic property that can improve coating.
Aqueous polyurethane moisture-proof anticorrosive coating of the present invention, its preparation method comprises the following steps:
1) raw material of parts by weight is prepared by following formula:
40-50 part modified polyurethane composite emulsion, 3-10 part filler, 0.1-0.3 part Natvosol, 0.1-0.3 part methyl-silicone oil, pigment 3-5 part, the agent of 5-7 part set, 5-7 part sanitas, 0.1-0.3 part dibutyl phthalate, 0.5-1 part zirconium-aluminate coupling agent, 0.1-0.3 part polyacrylate solution, 3-5 part dispersion agent, 0.1-0.3 part auxiliary agent and 5-10 part water;
2) with sand mill dispersion after water, dispersion agent, pigment, filler, zirconium-aluminate coupling agent and methyl-silicone oil being stirred by formula ratio, jitter time is 61-70min, obtained color stuffing slurry; Add the modified polyurethane composite emulsion of formula ratio in a reservoir, add above-mentioned obtained color stuffing slurry, sanitas, polyacrylate solution and auxiliary agent under agitation, stirring velocity is 410-450r/min, churning time is 21-30min, wherein when 5-10min, add the Natvosol of formula ratio; After having reacted, with 160 object silk strainer filterings, obtain filtrate, add the set agent of 5-7 part and filtrate mix and blend, obtain aqueous polyurethane moisture-proof anticorrosive coating products.
Positively effect of the present invention is:
1, aqueous polyurethane coating has excellent wear, chemical-resistant, the cementability of good toughness, elasticity and base material, in room temperature or low-temperature curing, therefore can be widely applied in each field.
2, by adding zirconium-aluminate coupling agent, significantly can reduce the viscosity of inorganic fill system of the present invention, improve its mobility, being applied to coating of the present invention can reduce viscosity, improves the quality of products.
3, the carboxyl in the base polyurethane prepolymer for use as in modified polyurethane composite emulsion of the present invention is hydrophilic, and epoxy resin is oily emulsion, base polyurethane prepolymer for use as is by the emulsion particle of coated for epoxy resin formation core-shell structure copolymer, provide good film-forming properties, film forming is got final product without the need to adding film coalescence aid, greatly reduce the VOC resultant in coating, make coating more meet environmental requirement.Add solid content higher and possess water tolerance chemical-resistant modified polyurethane composite emulsion, the hardness of film and tensile strength are increased, joined the humidity resistance that can improve coating in coating, coating is made to play moisture-proof role under moister, special environment, continuous print film can be formed at matrix surface, substrate surface and water are completely cut off, plays waterproof and moisture-proof role.With this composite emulsion for aqueous polyurethane moisture-proof anticorrosive coating prepared by base-material, obtaining salt fog resistance, good (> 800 h), glossiness is high, water-fast, wear-resisting, common wall, roofing, steel framed structure, pylon, hull, Petroleum Storage Tank, environment-friendly engineering, and the supporting priming paint that can do various protective system.
4, add sanitas MIT or CMIT, the putrid and deteriorated of coating can not only be prevented, improve the antiseptic property of coating, film can also be made to have the ability resisting fungus attack.
5, coating of the present invention, low temperature or self-vulcanizing, can brush or spray, there is good tensile strength, unit elongation, tearing toughness and weathering resistance, can form continuous print film at metal base surface, substrate surface and water are completely cut off, play waterproof and moisture-proof role, in addition, also there is the performance that salt fog resistance is good, play preservative activity.
Embodiment
Embodiment 1
First by weight by modified polyurethane composite emulsion 40 parts, particle diameter is the mica powder 3 parts of 100 μm, Natvosol 0.1 part, methyl-silicone oil 0.1 part, pigment titanium white 3 parts, set agent quadrol 5 parts, sanitas 5 parts, dibutyl phthalate 0.1 part, zirconium-aluminate coupling agent 0.5 part, polyacrylate solution 0.1 part, 3 parts of dispersion agent Macrogol 200s, auxiliary agent polydimethylsiloxane 0.1 part and 5 parts, water, get the raw materials ready;
With sand mill dispersion after the mica powder, zirconium-aluminate coupling agent and the methyl-silicone oil that are 100 μm by water, dispersion agent Macrogol 200, pigment titanium white, particle diameter by formula ratio stir, jitter time is 61-70min, obtained color stuffing slurry; Add the modified polyurethane composite emulsion of formula ratio in a reservoir, add above-mentioned obtained color stuffing slurry, sanitas MIT, polyacrylate solution and auxiliary agent polydimethylsiloxane under agitation, stirring velocity is 410-450r/min, churning time is 21-30min, wherein when 5-10min, add the Natvosol of formula ratio; After having reacted, with 160 object silk strainer filterings, obtain filtrate, add 5 parts of set agent quadrols and filtrate mix and blend, obtain aqueous polyurethane moisture-proof anticorrosive coating products.
Embodiment 2
First by weight by modified polyurethane composite emulsion 45 parts, particle diameter is the titanium dioxide 6 parts of 200 μm, Natvosol 0.2 part, methyl-silicone oil 0.2 part, pigment carbon black 4 parts, set agent hexanediamine 6 parts, sanitas 6 parts, dibutyl phthalate 0.2 part, zirconium-aluminate coupling agent 0.7 part, polyacrylate solution 0.2 part, 4 parts of dispersion agent poly(oxyethylene glycol) 400, auxiliary agent polyphenyl methyl siloxane 0.2 part and 8 parts, water, get the raw materials ready;
With sand mill dispersion after the titanium dioxide, zirconium-aluminate coupling agent and the methyl-silicone oil that are 200 μm by water, dispersion agent poly(oxyethylene glycol) 400, pigment carbon black, particle diameter by formula ratio stir, jitter time is 61-70min, obtained color stuffing slurry; Add the modified polyurethane composite emulsion of formula ratio in a reservoir, add above-mentioned obtained color stuffing slurry, sanitas MIT, polyacrylate solution and auxiliary agent polyphenyl methyl siloxane under agitation, stirring velocity is 410-450r/min, churning time is 21-30min, wherein when 5-10min, add the Natvosol of formula ratio; After having reacted, with 160 object silk strainer filterings, obtain filtrate, add 6 parts of set agent hexanediamines and filtrate mix and blend, obtain aqueous polyurethane moisture-proof anticorrosive coating products.
Embodiment 3
First by weight by modified polyurethane composite emulsion 50 parts, particle diameter is the talcum powder 10 parts of 300 μm, Natvosol 0.3 part, methyl-silicone oil 0.3 part, pigment iron oxide red 5 parts, set agent diethylenetriamine 7 parts, sanitas 7 parts, dibutyl phthalate 0.3 part, zirconium-aluminate coupling agent 1 part, polyacrylate solution 0.3 part, 5 parts of Macrogol 200s, the polyether-modified polydimethylsiloxane of auxiliary agent 0.3 part and 8 parts, water, get the raw materials ready;
With sand mill dispersion after the talcum powder, zirconium-aluminate coupling agent and the methyl-silicone oil that are 300 μm by water, Macrogol 200, pigment iron oxide red, particle diameter by formula ratio stir, jitter time is 61-70min, obtained color stuffing slurry; Add the modified polyurethane composite emulsion of formula ratio in a reservoir, add above-mentioned obtained color stuffing slurry, sanitas MIT, polyacrylate solution and the polyether-modified polydimethylsiloxane of auxiliary agent under agitation, stirring velocity is 410-450r/min, churning time is 21-30min, wherein when 5-10min, add the Natvosol of formula ratio; After having reacted, with 160 object silk strainer filterings, obtain filtrate, add 7 parts of set agent diethylenetriamines and filtrate mix and blend, obtain aqueous polyurethane moisture-proof anticorrosive coating products.
The investigation of weathering resistance: film does not at room temperature trickle, the performance of bubble-free and obscission, by EXAMPLE l-3 gained.
Paint film prepared by aqueous polyurethane moisture-proof anticorrosive coating of the present invention: viscosity (being coated with 3 glasss, 24 DEG C), s:50-60, sticking power (level): < 2, resistance to impact shock>=60 kgcm, opacifying power (g/m
2)≤l02, hardness (double pendulum):>=0.6, resistance to 3%NaCl (normal temperature)>=27h: the intact resistance to 15%NaOH of coating (normal temperature)>=27h: the intact resistance to 15%H of coating
2sO
4(normal temperature)>=27h: the intact water tolerance of coating (normal temperature)>=54h: heat passes to coefficient w/mk :≤0.055.
Coating protection against the tide of the present invention, waterproof, anticorrosion ability are good, can be widely used in common wall, roofing, steel framed structure, pylon, hull, Petroleum Storage Tank, environment-friendly engineering, and can make the supporting priming paint of various protective system.Protective coating of the present invention, loose to the requirement of construction surface, can directly brush at metal base surface, can play good protection effect equally, difficulty of construction be low.
Claims (7)
1. an aqueous polyurethane moisture-proof anticorrosive coating, is characterized in that: make the raw material that this coating comprises following parts by weight:
Modified polyurethane composite emulsion 40 ~ 50 parts;
Filler 3 ~ 10 parts;
Natvosol 0.1 ~ 0.3 part;
Methyl-silicone oil 0.1 ~ 0.3 part
Dibutyl phthalate 0.1 ~ 0.3 part;
Zirconium-aluminate coupling agent 0.5 ~ 1 part;
Pigment 3 ~ 5 parts;
Set agent 5 ~ 7 parts;
Polyacrylate solution 0.1 ~ 0.3 part;
Dispersion agent 3 ~ 5 parts;
Auxiliary agent 0.1 ~ 0.3 part;
5 ~ 10 parts, water;
Sanitas 5 ~ 7 parts;
Described modified polyurethane composite emulsion is solid content is more than 35%, particle diameter is 20-30nm and the composite emulsion of molecular weight between 6000-8000;
Described Natvosol is a kind of white or faint yellow, tasteless, nontoxic threadiness or pulverulent solids;
Described methyl-silicone oil is a kind of defoamer.
2. aqueous polyurethane moisture-proof anticorrosive coating according to claim 1, is characterized in that: described filler to be particle diameter be mica powder, any one or more in titanium dioxide and talcum powder of 10-300 μm.
3. aqueous polyurethane moisture-proof anticorrosive coating according to claim 1, is characterized in that: described dibutyl phthalate is a kind of softening agent.
4. aqueous polyurethane moisture-proof anticorrosive coating according to claim 1, it is characterized in that: described zirconium-aluminate coupling agent is a kind of amphiprotic substance, there is the effect of specific function " molecular bridge ", its one end can with filler generation chemical reaction, formed strong chemical bond and, the other end can form electrostatical binding with the electric charge of fiber surface, thus the material making two kinds of nature differences very large combines securely.
5. aqueous polyurethane moisture-proof anticorrosive coating according to claim 1, is characterized in that: described pigment is one or more in titanium dioxide, carbon black and iron oxide red; Described set agent is one or more in quadrol, hexanediamine and diethylenetriamine; Described polyacrylate solution is a kind of flow agent.
6. aqueous polyurethane moisture-proof anticorrosive coating according to claim 1, is characterized in that: described dispersion agent is Macrogol 200 or poly(oxyethylene glycol) 400; Described auxiliary agent is one or more in polydimethylsiloxane, polyphenyl methyl siloxane and polyether-modified polydimethylsiloxane.
7. aqueous polyurethane moisture-proof anticorrosive coating according to claim 1, is characterized in that: its preparation method comprises the following steps:
1) raw material of parts by weight is prepared by following formula:
40-50 part modified polyurethane composite emulsion, 3-10 part filler, 0.1-0.3 part Natvosol, 0.1-0.3 part methyl-silicone oil, pigment 3-5 part, the agent of 5-7 part set, 5-7 part sanitas, 0.1-0.3 part dibutyl phthalate, 0.5-1 part zirconium-aluminate coupling agent, 0.1-0.3 part polyacrylate solution, 3-5 part dispersion agent, 0.1-0.3 part auxiliary agent and 5-10 part water;
2) by formula ratio by water, dispersion agent, pigment, filler, zirconium-aluminate coupling agent, methyl-silicone oil
With sand mill dispersion after stirring, jitter time is 61-70min, obtained color stuffing slurry; Add the modified polyurethane composite emulsion of formula ratio in a reservoir, add above-mentioned obtained color stuffing slurry, sanitas, polyacrylate solution, auxiliary agent under agitation, stirring velocity is 410-450r/min, churning time is 21-30min, wherein when 5-10min, add the Natvosol of formula ratio; After having reacted, with 160 object silk strainer filterings, obtain filtrate, add the set agent of 5-7 part and filtrate mix and blend, obtain aqueous polyurethane moisture-proof anticorrosive coating products.
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Effective date of registration: 20200803 Address after: 530300, the Guangxi Zhuang Autonomous Region, Nanning, Hengxian Yang town to house Tuen Patentee after: Li Zhishan Address before: 530012 No. 1 Development Avenue, No. 189, Xixiangtang District, Nanning City, Guangxi Zhuang Autonomous Region Patentee before: GUANGXI SHENGWEI ENERGY TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170905 |