A kind of high adhesion force wear-resistant engineering machinery water-repellent paint
The application is application number: 2014106132235, the applying date: on November 5th, 2014, denomination of invention: the divisional application of a kind of high adhesion force wear-resistant engineering machinery water-repellent paint.
Technical field
The present invention relates to engineering machinery water-repellent paint technical field, particularly relate to a kind of high adhesion force wear-resistant engineering machinery water-repellent paint.
Background technology
Engineering machinery water-repellent paint refers to that the film that coating is formed is prevented from moisture penetration, thus stop its construction machinery product to produce a kind of coating corroded, in engineering machinery water-repellent paint, product with polyurethane as main film forming substance is in the majority, its intensity is high, elongation percentage is big, water resistance good, easy to use, the scope of application is the widest, but, adhesive force and the wearability of this engineering machinery water-repellent paint are poor, and some coating products add the material strengthening wearability, significantly reduce again adhesive force, cause properties of product the best, it is impossible to be widely popularized use.
Summary of the invention
The technical problem that basic background technology exists, the present invention proposes a kind of high adhesion force wear-resistant engineering machinery water-repellent paint, and adhesive force is high, anti-wear performance is good.
A kind of high adhesion force wear-resistant engineering machinery water-repellent paint that the present invention proposes, its raw material includes by weight: two component polyurethane 54-57 part, epoxy resin 22-26 part, styrene-acrylic emulsion 21-24 part, age resistor 0.5-0.8 part, defoamer 1.8-2.1 part, coalescents 2.2-2.5 part, dispersant 1.2-1.5 part, antifreezing agent 1.5-1.8 part, modified graphene 27-30 part, Nano titanium dioxide 11-16 part, mica powder 5-8 part, Silane coupling reagent KH-570 1.2-1.6 part, sodium orthophosphate 4-7 part, sodium tripolyphosphate 6-10 part, solvent 55-58 part;
In the preparation process of modified graphene, carry out the first ultrasonic disperse after by weight 8-12 part Graphene and 26-30 part sulphuric acid/nitric acid fluid,matching being put into the first reaction vessel mix homogeneously being placed in 65-68 DEG C of water-bath and obtain material A, the ultrasonic disperse time is 1.5-2h for the first time, the frequency of ultrasonic disperse is 25-28KHz for the first time, and the power of ultrasonic disperse is 1000-1200W for the first time;Material A is put into 3-6 × 104In part deionized water, regulation pH value is ageing 2-3h for the first time after 6.8-7.1, sucking filtration, is dried to obtain material B;Material B, 26-29 part thionyl chloride, 13-16 part DMF are put into the second reaction vessel that temperature is 80-85 DEG C, under nitrogen protection decompression distillation 2-3h after insulation 26-28h, sucking filtration after second time ageing 2-2.5h, is dried to obtain material C;Material C, 12-15 part triethylene tetramine addition the 3rd reaction vessel mix homogeneously is carried out second time ultrasonic disperse, the ultrasonic disperse time is 2-3h for the second time, the frequency of ultrasonic disperse is 60-65KHz for the second time, the power of ultrasonic disperse is 1100-1300W for the second time, again the 3rd reaction vessel temperature it is increased to 106-110 DEG C and is incubated 2-3h, after decompression distillation 1-1.6h, sucking filtration, it is dried to obtain modified graphene;
Wherein sulphuric acid/nitric acid fluid,matching is the mixed solution that concentration is the sulfuric acid solution of 96-98wt% and salpeter solution that concentration is 52-55wt% is prepared by the volume ratio of 3-4:1-2.
Preferably, two component polyurethane is mixed by two component 1-1.5:2-3 in mass ratio.
Preferably, in styrene-acrylic emulsion, styrene, acrylic acid weight ratio are 1.8-2.2:1-1.3.
Preferably, two component polyurethane, epoxy resin, the weight ratio of styrene-acrylic emulsion are 55-56:23-24:22-23.
Preferably, its raw material includes by weight: two component polyurethane 55-56 part, epoxy resin 23-24 part, styrene-acrylic emulsion 22-23 part, age resistor 0.6-0.7 part, defoamer 1.9-2 part, coalescents 2.3-2.4 part, dispersant 1.3-1.4 part, antifreezing agent 1.6-1.7 part, modified graphene 28-29 part, Nano titanium dioxide 13-14 part, mica powder 6-7 part, Silane coupling reagent KH-570 1.3-1.5 part, sodium orthophosphate 5-6 part, sodium tripolyphosphate 7-9 part, solvent 56-57 part.
Preferably, in the preparation process of modified graphene, carry out the first ultrasonic disperse after by weight 9-10 part Graphene and 27-28 part sulphuric acid/nitric acid fluid,matching being put into the first reaction vessel mix homogeneously being placed in 66-67 DEG C of water-bath and obtain material A, the ultrasonic disperse time is 1.6-1.8h for the first time, the frequency of ultrasonic disperse is 26-27KHz for the first time, and the power of ultrasonic disperse is 1100-1150W for the first time;Material A is put into 4-5 × 104In part deionized water, regulation pH value is ageing 2.2-2.5h for the first time after 6.9-7, sucking filtration, is dried to obtain material B;By material B, 27-28 part thionyl chloride, 14-15 part N; dinethylformamide puts into the second reaction vessel that temperature is 83-84 DEG C; under nitrogen protection insulation 27-27.5h after decompression distillation 2.2-2.6h, second time ageing 2.1-2.3h after sucking filtration, be dried to obtain material C;Material C, 13-14 part triethylene tetramine addition the 3rd reaction vessel mix homogeneously is carried out second time ultrasonic disperse, the ultrasonic disperse time is 2.2-2.5h for the second time, the frequency of ultrasonic disperse is 63-64KHz for the second time, the power of ultrasonic disperse is 1180-1200W for the second time, again the 3rd reaction vessel temperature it is increased to 108-109 DEG C and is incubated 2.4-2.7h, after decompression distillation 1.2-1.4h, sucking filtration, it is dried to obtain modified graphene;
Wherein sulphuric acid/nitric acid fluid,matching is the mixed solution that concentration is the sulfuric acid solution of 96-98wt% and salpeter solution that concentration is 53-54wt% is prepared by the volume ratio of 3.2-3.6:1.4-1.8.
The present invention, using two component polyurethane, epoxy resin, styrene-acrylic emulsion as film forming matter, makes the present invention possess higher adhesive force and good anti-wear performance, and makes that curing rate of the present invention is fast, become film hardness high;nullModified graphene、Nano titanium dioxide、The interpolation of mica powder,Greatly strengthen present invention adhesive force and anti-wear performance,Wherein modified graphene is made up through triethylene tetramine modification of Graphene,In modifying process,Triethylene tetramine and graphenic surface epoxy radicals generation ring-opening reaction,The new side chain formed can be with the hydroxyl reaction on the carbon atom of ortho position,Form double bond and azanol,Thus on the one hand substantially increase Graphene dispersibility in deionized water、Reduce the agglomeration of Graphene,And then be prone to the material surface diffusion using the present invention,Thus improve the adhesive force of the present invention,On the other hand modified graphene interface energy strengthens,Can be effectively embedded into and depth integration is in film forming matter of the present invention,So that the present invention is impacted、During the active forces such as friction,Load in the present invention can be by interfacial migration to Graphene,Thus absorb more active force,Enhance the anti-wear performance of the present invention;And the use of Silane coupling reagent KH-570, on the one hand the modified graphene of above-mentioned interpolation, Nano titanium dioxide, mica powder is made to be evenly dispersed in the film forming matter of the present invention, on the other hand, one end of Silane coupling reagent KH-570 can be with the hydroxyl reaction of engineering machinery metal surface, the other end can react with the epoxy radicals in epoxy resin, thus between engineering machinery metal surface and the present invention, constitute firm covalent bond, thus substantially increase the adhesive force of the present invention;And the water-proof system that sodium orthophosphate and sodium tripolyphosphate combination are constituted; generation phosphate anion can be decomposed and generate chelate with metal ion; form inorganic polymer misfit body; protecting film is generated in metal surface; water-proof system can resolve into the orthophosphoric acid film of densification simultaneously, further increases the water resistance of the present invention.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
A kind of high adhesion force wear-resistant engineering machinery water-repellent paint that the present invention proposes, its raw material includes by weight: two component polyurethane 57 parts, epoxy resin 22 parts, styrene-acrylic emulsion 24 parts, 0.5 part of age resistor, defoamer 2.1 parts, coalescents 2.2 parts, dispersant 1.5 parts, antifreezing agent 1.5 parts, modified graphene 30 parts, Nano titanium dioxide 11 parts, mica powder 8 parts, Silane coupling reagent KH-570 1.2 parts, sodium orthophosphate 7 parts, sodium tripolyphosphate 6 parts, solvent 58 parts;Wherein, two component polyurethane is mixed by two component 1:3 in mass ratio, and in styrene-acrylic emulsion, styrene, acrylic acid weight ratio are 2.2:1;
In the preparation process of modified graphene, carry out the first ultrasonic disperse after by weight 8 parts of Graphenes and 30 parts of sulphuric acid/nitric acid fluid,matchings being put into the first reaction vessel mix homogeneously being placed in 65 DEG C of water-baths and obtain material A, the ultrasonic disperse time is 2h for the first time, the frequency of ultrasonic disperse is 25KHz for the first time, and the power of ultrasonic disperse is 1200W for the first time;Material A is put into 3 × 104In part deionized water, regulation pH value is ageing 2h for the first time after 7.1, sucking filtration, is dried to obtain material B;Material B, 29 parts of thionyl chlorides, 16 parts of DMFs are put into the second reaction vessel that temperature is 85 DEG C, under nitrogen protection decompression distillation 3h after insulation 26h, sucking filtration after second time ageing 2h, is dried to obtain material C;Material C, 15 parts of triethylene tetramines are added the 3rd reaction vessel mix homogeneously and carry out second time ultrasonic disperse, the ultrasonic disperse time is 2h for the second time, the frequency of ultrasonic disperse is 65KHz for the second time, the power of ultrasonic disperse is 1100W for the second time, again the 3rd reaction vessel temperature it is increased to 110 DEG C and is incubated 2h, after decompression distillation 1.6h, sucking filtration, it is dried to obtain modified graphene;Wherein sulphuric acid/nitric acid fluid,matching is the mixed solution that concentration is the sulfuric acid solution of 96wt% and salpeter solution that concentration is 55wt% is prepared by the volume ratio of 3:2.
Embodiment 2
A kind of high adhesion force wear-resistant engineering machinery water-repellent paint that the present invention proposes, its raw material includes by weight: two component polyurethane 54 parts, epoxy resin 26 parts, styrene-acrylic emulsion 21 parts, 0.8 part of age resistor, defoamer 1.8 parts, coalescents 2.5 parts, dispersant 1.2 parts, antifreezing agent 1.8 parts, modified graphene 27 parts, Nano titanium dioxide 16 parts, mica powder 5 parts, Silane coupling reagent KH-570 1.6 parts, sodium orthophosphate 4 parts, sodium tripolyphosphate 10 parts, solvent 55 parts;Wherein, two component polyurethane is mixed by two component 1.5:2 in mass ratio, and in styrene-acrylic emulsion, styrene, acrylic acid weight ratio are 1.8:1.3;
In the preparation process of modified graphene, carry out the first ultrasonic disperse after by weight 12 parts of Graphenes and 26 parts of sulphuric acid/nitric acid fluid,matchings being put into the first reaction vessel mix homogeneously being placed in 68 DEG C of water-baths and obtain material A, the ultrasonic disperse time is 1.5h for the first time, the frequency of ultrasonic disperse is 28KHz for the first time, and the power of ultrasonic disperse is 1000W for the first time;Material A is put into 6 × 104In part deionized water, regulation pH value is ageing 3h for the first time after 6.8, sucking filtration, is dried to obtain material B;Material B, 26 parts of thionyl chlorides, 16 parts of DMFs are put into the second reaction vessel that temperature is 80 DEG C, under nitrogen protection decompression distillation 2h after insulation 28h, sucking filtration after second time ageing 2.5h, is dried to obtain material C;Material C, 12 parts of triethylene tetramines are added the 3rd reaction vessel mix homogeneously and carry out second time ultrasonic disperse, the ultrasonic disperse time is 3h for the second time, the frequency of ultrasonic disperse is 60KHz for the second time, the power of ultrasonic disperse is 1300W for the second time, again the 3rd reaction vessel temperature it is increased to 106 DEG C and is incubated 3h, after decompression distillation 1h, sucking filtration, it is dried to obtain modified graphene;Wherein sulphuric acid/nitric acid fluid,matching is the mixed solution that concentration is the sulfuric acid solution of 98wt% and salpeter solution that concentration is 52wt% is prepared by the volume ratio of 4:1.
Embodiment 3
A kind of high adhesion force wear-resistant engineering machinery water-repellent paint that the present invention proposes, its raw material includes by weight: two component polyurethane 56 parts, epoxy resin 23 parts, styrene-acrylic emulsion 23 parts, 0.6 part of age resistor, froth breaking 2 parts, coalescents 2.3 parts, dispersant 1.4 parts, antifreezing agent 1.6 parts, modified graphene 29 parts, Nano titanium dioxide 13 parts, mica powder 7 parts, Silane coupling reagent KH-570 1.3 parts, sodium orthophosphate 6 parts, sodium tripolyphosphate 7 parts, solvent 57 parts;Wherein, two component polyurethane is mixed by two component 1.1:2.6 in mass ratio, and in styrene-acrylic emulsion, styrene, acrylic acid weight ratio are 2.1:1.1;
In the preparation process of modified graphene, carry out the first ultrasonic disperse after by weight 9 parts of Graphenes and 28 parts of sulphuric acid/nitric acid fluid,matchings being put into the first reaction vessel mix homogeneously being placed in 66 DEG C of water-baths and obtain material A, the ultrasonic disperse time is 1.8h for the first time, the frequency of ultrasonic disperse is 26KHz for the first time, and the power of ultrasonic disperse is 1150W for the first time;Material A is put into 4 × 104In part deionized water, regulation pH value is ageing 2.2h for the first time after 7, sucking filtration, is dried to obtain material B;Material B, 28 parts of thionyl chlorides, 14 parts of DMFs are put into the second reaction vessel that temperature is 84 DEG C, under nitrogen protection decompression distillation 2.6h after insulation 27h, sucking filtration after second time ageing 2.1h, is dried to obtain material C;Material C, 14 parts of triethylene tetramines are added the 3rd reaction vessel mix homogeneously and carry out second time ultrasonic disperse, the ultrasonic disperse time is 2.2h for the second time, the frequency of ultrasonic disperse is 64KHz for the second time, the power of ultrasonic disperse is 1180W for the second time, again the 3rd reaction vessel temperature it is increased to 109 DEG C and is incubated 2.4h, after decompression distillation 1.4h, sucking filtration, it is dried to obtain modified graphene;Wherein sulphuric acid/nitric acid fluid,matching is the mixed solution that concentration is the sulfuric acid solution of 96wt% and salpeter solution that concentration is 54wt% is prepared by the volume ratio of 3.4:1.6.
Embodiment 4
A kind of high adhesion force wear-resistant engineering machinery water-repellent paint that the present invention proposes, its raw material includes by weight: two component polyurethane 55 parts, epoxy resin 24 parts, styrene-acrylic emulsion 22 parts, 0.7 part of age resistor, defoamer 1.9 parts, coalescents 2.4 parts, dispersant 1.3 parts, antifreezing agent 1.7 parts, modified graphene 28 parts, Nano titanium dioxide 14 parts, mica powder 6 parts, Silane coupling reagent KH-570 1.5 parts, sodium orthophosphate 5 parts, sodium tripolyphosphate 9 parts, solvent 56 parts;Wherein, two component polyurethane is mixed by two component 1.3:2.2 in mass ratio, and in styrene-acrylic emulsion, styrene, acrylic acid weight ratio are 1.9-:1.2;
In the preparation process of modified graphene, carry out the first ultrasonic disperse after by weight 10 parts of Graphenes and 27 parts of sulphuric acid/nitric acid fluid,matchings being put into the first reaction vessel mix homogeneously being placed in 67 DEG C of water-baths and obtain material A, the ultrasonic disperse time is 1.6h for the first time, the frequency of ultrasonic disperse is 27KHz for the first time, and the power of ultrasonic disperse is 1100W for the first time;Material A is put into 5 × 104In part deionized water, regulation pH value is ageing 2.5h for the first time after 6.9, sucking filtration, is dried to obtain material B;Material B, 27 parts of thionyl chlorides, 15 parts of DMFs are put into the second reaction vessel that temperature is 83 DEG C, under nitrogen protection decompression distillation 2.2h after insulation 27.5h, sucking filtration after second time ageing 2.3h, is dried to obtain material C;Material C, 13 parts of triethylene tetramines are added the 3rd reaction vessel mix homogeneously and carry out second time ultrasonic disperse, the ultrasonic disperse time is 2.5h for the second time, the frequency of ultrasonic disperse is 63KHz for the second time, the power of ultrasonic disperse is 1200W for the second time, again the 3rd reaction vessel temperature it is increased to 108 DEG C and is incubated 2.7h, after decompression distillation 1.2h, sucking filtration, it is dried to obtain modified graphene;Wherein sulphuric acid/nitric acid fluid,matching is the mixed solution that concentration is the sulfuric acid solution of 98wt% and salpeter solution that concentration is 53wt% is prepared by the volume ratio of 3.3:1.5.
The above; it is only the present invention preferably detailed description of the invention; but protection scope of the present invention is not limited thereto; any those familiar with the art is in the technical scope that the invention discloses; according to technical scheme and inventive concept equivalent or change in addition thereof, all should contain within protection scope of the present invention.