CN115960411A - Wire irradiation material and preparation method thereof - Google Patents
Wire irradiation material and preparation method thereof Download PDFInfo
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- CN115960411A CN115960411A CN202210215139.2A CN202210215139A CN115960411A CN 115960411 A CN115960411 A CN 115960411A CN 202210215139 A CN202210215139 A CN 202210215139A CN 115960411 A CN115960411 A CN 115960411A
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- 239000000463 material Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 239000003063 flame retardant Substances 0.000 claims abstract description 39
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 36
- 229920005672 polyolefin resin Polymers 0.000 claims abstract description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 14
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims abstract description 14
- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 12
- 239000000314 lubricant Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 18
- 229920001577 copolymer Polymers 0.000 claims description 15
- -1 polyethylene Polymers 0.000 claims description 15
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 12
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 7
- 229920000573 polyethylene Polymers 0.000 claims description 7
- 229920001296 polysiloxane Polymers 0.000 claims description 6
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- BPXVHIRIPLPOPT-UHFFFAOYSA-N 1,3,5-tris(2-hydroxyethyl)-1,3,5-triazinane-2,4,6-trione Chemical compound OCCN1C(=O)N(CCO)C(=O)N(CCO)C1=O BPXVHIRIPLPOPT-UHFFFAOYSA-N 0.000 claims description 2
- YHMYGUUIMTVXNW-UHFFFAOYSA-N 1,3-dihydrobenzimidazole-2-thione Chemical compound C1=CC=C2NC(S)=NC2=C1 YHMYGUUIMTVXNW-UHFFFAOYSA-N 0.000 claims description 2
- VETPHHXZEJAYOB-UHFFFAOYSA-N 1-n,4-n-dinaphthalen-2-ylbenzene-1,4-diamine Chemical compound C1=CC=CC2=CC(NC=3C=CC(NC=4C=C5C=CC=CC5=CC=4)=CC=3)=CC=C21 VETPHHXZEJAYOB-UHFFFAOYSA-N 0.000 claims description 2
- LPFKVVZTNDJALE-UHFFFAOYSA-N 3,5-dimethoxypyridine Chemical compound COC1=CN=CC(OC)=C1 LPFKVVZTNDJALE-UHFFFAOYSA-N 0.000 claims description 2
- PRWJPWSKLXYEPD-UHFFFAOYSA-N 4-[4,4-bis(5-tert-butyl-4-hydroxy-2-methylphenyl)butan-2-yl]-2-tert-butyl-5-methylphenol Chemical compound C=1C(C(C)(C)C)=C(O)C=C(C)C=1C(C)CC(C=1C(=CC(O)=C(C=1)C(C)(C)C)C)C1=CC(C(C)(C)C)=C(O)C=C1C PRWJPWSKLXYEPD-UHFFFAOYSA-N 0.000 claims description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 2
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- PDTZMULNKGUIEJ-UHFFFAOYSA-N tert-butyl 4-methylidenepiperidine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCC(=C)CC1 PDTZMULNKGUIEJ-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 8
- 238000004132 cross linking Methods 0.000 description 7
- 239000007822 coupling agent Substances 0.000 description 6
- 239000003999 initiator Substances 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000002245 particle Substances 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- QUAMTGJKVDWJEQ-UHFFFAOYSA-N octabenzone Chemical group OC1=CC(OCCCCCCCC)=CC=C1C(=O)C1=CC=CC=C1 QUAMTGJKVDWJEQ-UHFFFAOYSA-N 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical group C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 2
- DCQBZYNUSLHVJC-UHFFFAOYSA-N 3-triethoxysilylpropane-1-thiol Chemical group CCO[Si](OCC)(OCC)CCCS DCQBZYNUSLHVJC-UHFFFAOYSA-N 0.000 description 2
- 229920000877 Melamine resin Polymers 0.000 description 2
- 229920000388 Polyphosphate Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 229920006228 ethylene acrylate copolymer Polymers 0.000 description 2
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000001205 polyphosphate Substances 0.000 description 2
- 235000011176 polyphosphates Nutrition 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 229920001567 vinyl ester resin Polymers 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- LVOJOIBIVGEQBP-UHFFFAOYSA-N 4-[[2-chloro-4-[3-chloro-4-[(5-hydroxy-3-methyl-1-phenylpyrazol-4-yl)diazenyl]phenyl]phenyl]diazenyl]-5-methyl-2-phenylpyrazol-3-ol Chemical group CC1=NN(C(O)=C1N=NC1=CC=C(C=C1Cl)C1=CC(Cl)=C(C=C1)N=NC1=C(O)N(N=C1C)C1=CC=CC=C1)C1=CC=CC=C1 LVOJOIBIVGEQBP-UHFFFAOYSA-N 0.000 description 1
- 229920002943 EPDM rubber Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000272534 Struthio camelus Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000004185 ester group Chemical group 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to C08L23/08, in particular to a wire irradiation material and a preparation method thereof. The composite material comprises the following raw materials in percentage by mass: 35-43% of polyolefin resin, 50-60% of flame retardant, 1.5-2.3% of antioxidant, 1-2% of lubricant, 1.5-2% of compound with carbon-nitrogen six-section ring structure and 1.5-2.5% of toner and auxiliary agent. The cable material prepared by the invention has the excellent performances of high mechanical strength, oil resistance, no blackening of copper wires and the like.
Description
Technical Field
The invention relates to C08L23/08, in particular to a wire irradiation material and a preparation method thereof.
Background
With the development of radiation crosslinking technology, the temperature resistance grade of the cable produced by radiation crosslinking is higher than that of the common cable, the heat resistance is obviously improved, and the physical and mechanical properties are greatly improved.
In patent CN201310339575.1, a high-temperature-resistant, wear-resistant, high-electric-property irradiation crosslinking regenerated polyolefin/nano magnesium hydroxide halogen-free flame-retardant environment-friendly cable material and a production method thereof adopt polyolefin, ethylene propylene diene monomer rubber nano, flame retardant and other substances with low cost, high strength and good tensile strength.
The irradiation crosslinking type low-smoke halogen-free flame-retardant polyolefin cable material for the photovoltaic cable disclosed by the patent CN201010103274.5 comprises an ethylene-ethylene vinyl ester copolymer, an ethylene-acrylate copolymer, melamine polyphosphate and the like, and the cable prepared from the ethylene-ethylene vinyl ester copolymer, the ethylene-acrylate copolymer, the melamine polyphosphate and the like has excellent flame retardant property and good ultraviolet aging resistance.
However, when the conventional cable material is irradiated, as most of the cable material contains substances such as rubber, sulfur and the like, which are easy to be sticky, sulfuration gas is generated during irradiation, so that the color of the copper wire is dark and the conductor is blackened.
Disclosure of Invention
In order to solve the above technical problems, a first aspect of the present invention provides a wire irradiation material, which comprises the following raw materials by mass: 35-43% of polyolefin resin, 50-60% of flame retardant, 1.5-2.3% of antioxidant, 1-2% of lubricant, 1.5-2% of compound with carbon-nitrogen six-section ring structure and 1.5-2.5% of toner and auxiliary agent.
Preferably, the polyolefin resin is a polyethylene-based copolymer.
Preferably, the polyethylene-based copolymer includes at least one of an ethylene-octene copolymer, an ethylene-vinyl acetate copolymer, an ethylene-hexene copolymer, and an ethylene-pentene copolymer.
In order to further improve the water resistance, corrosion resistance and high and low temperature resistance of the polyvinyl copolymer, it is further preferable that the polyvinyl copolymer is an ethylene-vinyl acetate copolymer.
Further preferably, the content of the polyolefin resin is 38-43%, and the alpha-unreacted active hydrogen of the ester group in the system is more active, so that the system can more easily form a cross-linked network structure under the irradiation condition.
Preferably, the content of VA in the ethylene-vinyl acetate copolymer is 15-23wt%, so that the influence on the mechanical property of the cable material caused by the irregular increase of molecular chains is avoided.
In order to further improve the processing and forming performance and the flame retardant performance and prevent the adverse effect on the comprehensive performance, the melt index of the ethylene-vinyl acetate copolymer at 190 ℃/2.16kg is preferably 12-17g/10min.
Preferably, the flame retardant comprises at least one of a magnesium hydroxide flame retardant, an aluminum hydroxide flame retardant, and a halogen flame retardant.
In order to suppress the generation of smoke and prevent the generation of toxic gas, it is further preferable that the flame retardant is a magnesium hydroxide flame retardant and an aluminum hydroxide flame retardant.
Further preferably, the flame retardant is an aluminum hydroxide flame retardant. It is presumed that the ethylene-vinyl acetate copolymer may generate small molecular substances through irradiation, and the small molecular substances are easy to react with magnesium hydroxide, so that the prepared cable material is easy to have defects, and the mechanical property of the cable are reduced.
Preferably, the aluminum hydroxide flame retardant comprises 99.4-99.8% of aluminum hydroxide and SiO 2 ≤0.05％，Fe 2 O 3 ≤0.01％，Na 2 O is less than or equal to 0.2 percent. The invention discovers that the aluminum hydroxide fire retardant not only influences the fire resistance of the aluminum hydroxide fire retardant, but also can further improve the wear resistance of the aluminum hydroxide fire retardant, and effectively avoids the phenomenon that copper wires are blackened. The conjecture is that various compounds contained in the system are mutually matched with the raw materials in the system and are embedded and inserted among molecular chains of the cross-linked network structure, and meanwhile, the probability of losing electrons of the copper wire is reduced, and the phenomena of dark color of the copper wire and blackened conductors are avoided.
In order to further improve the flame retardant property and prevent the copper wire from blackening, the median particle diameter D50 of the aluminum hydroxide flame retardant is preferably 0.5-1.5um.
Preferably, the antioxidant comprises at least one of antioxidant 1010, antioxidant 1076, antioxidant 168, antioxidant 264, antioxidant CA, antioxidant DNP and antioxidant MB.
More preferably, the antioxidant is 1010.
In order to further improve the dispersibility and flame retardant property thereof, it is preferable that the lubricant comprises ultra-high molecular weight polysiloxane and ethylene-vinyl acetate copolymer.
Preferably, the ultra-high molecular weight polysiloxane content is 45-55wt%. The invention has been found through unexpected research, and supposedly, the ultra-high molecular weight polysiloxane can effectively improve intermolecular acting force, destroy the structure of agglomerates in a system, and simultaneously effectively prevent an antioxidant and intermediate substances generated during irradiation from migrating to the surface of a cable, so that the copper wire is blackened.
Preferably, the compound with carbon nitrogen six-membered ring structure comprises at least one of N-tert-butyloxycarbonyl-4-methylenepiperidine, 4- (N-benzyloxycarbonyl) -aminopiperidine, 3, 5-dimethoxypyridine, tris (hydroxyethyl) isocyanurate and triallyl isocyanurate.
Further preferably, the compound having a carbon-nitrogen six-membered ring structure is triallyl isocyanurate.
Preferably, the toner has an average particle diameter of 0.07 to 0.1 μm and a specific surface area of 12 to 42m 2 /g。
Preferably, the auxiliary agents comprise an initiator, a coupling agent and a stabilizing agent. The mass ratio of the initiator to the coupling agent to the stabilizer (1-2): (3-4): (1-2).
Preferably, the initiator is dicumyl peroxide.
Preferably, the coupling agent is gamma-mercaptopropyltriethoxysilane (CAS number: 14814-09-06).
Preferably, the stabilizer is 2-hydroxy-4-octoxybenzophenone.
The second aspect of the present invention provides a method for preparing a wire-irradiating material, comprising the steps of: weighing the raw materials according to a formula, putting the polyolefin resin and the lubricant into a high-speed mixer, uniformly mixing for 3-7min, adding the compound with the carbon-nitrogen six-section ring structure, the antioxidant, the toner and the auxiliary agent, carrying out plastication for 13-17min through an internal mixer, extruding and granulating at 130-170 ℃, then placing the mixture on an open mill at 130-150 ℃, carrying out open milling, pressurizing and cooling, and carrying out irradiation crosslinking to obtain the wire irradiation material.
Preferably, the irradiation dose is 15 to 18Mard, and the thermal elongation is 10 to 20 percent.
Has the beneficial effects that:
according to the invention, the contents and types of all substances in the system are limited, the substances are mutually cooperated and matched, a three-dimensional net structure is formed after an irradiation process, the temperature resistance level is up to 150 ℃, the insulation resistance is larger, the service life is longer, the safety is high, the wear resistance is further improved, and the phenomenon of oxidation and blackening of the prepared cable material is avoided.
Detailed Description
Examples
Example 1
An electric wire irradiation material comprises the following raw materials in percentage by mass: 40% of polyolefin resin, 53% of flame retardant, 2% of antioxidant, 1.3% of lubricant, 1.7% of compound with carbon-nitrogen six-section ring structure and 2% of toner and auxiliary agent.
The polyolefin resin is a polyethylene-based copolymer. The polyethylene-based copolymer is an ethylene-vinyl acetate copolymer. The VA content in the ethylene-vinyl acetate copolymer is 18wt%, and the melt index at 190 ℃/2.16kg is 14g/10min. The polyolefin resin is purchased from Escornebifu chemical industry, escorene TM Ultra LD 726.07。
The flame retardant is an aluminum hydroxide flame retardant. The aluminum hydroxide flame retardant comprises 99.6 percent of aluminum hydroxide and SiO 2 ≤0.03％，Fe 2 O 3 ≤0.008％，Na 2 O is less than or equal to 0.17 percent, and the median particle diameter D50 of the aluminum hydroxide flame retardant is 0.8-1.3um. The aluminum hydroxide flame retardant is purchased from Zibo alumina micropowder factories, and has the following model: H-WF-1.
The antioxidant is antioxidant 1010.
The lubricant comprises ultrahigh molecular weight polysiloxane and ethylene-vinyl acetate copolymer. The content of the ultrahigh molecular weight polysiloxane is 50wt%. Available from san Ding Xin plastics materials Co., ltd, dongguan, model: DX-R03.
The compound with carbon-nitrogen six-section ring structure is triallyl isocyanurate.
The mass ratio of the toner to the auxiliary agent is 1:1. the average particle diameter of the toner is 0.09 μm, and the specific surface area of the toner is 12-42m 2 (ii) in terms of/g. The color is permanent orange G P.O.13 (CAS number: 3520-72-7). The toner is purchased from Shanghai Feichi ostrich pigment Co., ltd.
The auxiliary agent comprises an initiator, a coupling agent and a stabilizer, wherein the mass ratio of the initiator to the coupling agent to the stabilizer is 1.2:3.5:1.3. the initiator is dicumyl peroxide. The toner is carbon black, the coupling agent is gamma-mercaptopropyltriethoxysilane (CAS number: 14814-09-06), and the stabilizer is 2-hydroxy-4-octoxybenzophenone (CAS number: 1843-05-6).
A preparation method of an electric wire irradiation material comprises the following steps: weighing the raw materials according to the formula, putting the polyolefin resin and the lubricant into a high-speed mixer, uniformly mixing for 5min, adding the compound with the carbon-nitrogen six-section ring structure, the antioxidant, the toner and the auxiliary agent, carrying out plastication for 16min by an internal mixer, extruding and granulating at 160 ℃, then putting the mixture on a 135 ℃ open mill for open-milling, pressurizing and cooling, and carrying out irradiation crosslinking to obtain the wire irradiation material
The exposure was 17Mard and the thermal elongation was 15%.
Example 2
The specific implementation mode of the wire irradiation material is the same as that of example 1, except that 38% of polyolefin resin, 55% of flame retardant, 2% of antioxidant, 1.3% of lubricant, 1.7% of compound with carbon-nitrogen six-membered ring structure and 2% of toner and auxiliary agent are adopted.
Example 3
The specific implementation of an electric wire irradiation material is the same as that in example 1, except that the raw materials: 43% of polyolefin resin, 51% of flame retardant, 1.6% of antioxidant, 1.2% of lubricant, 1.6% of compound with carbon-nitrogen six-section ring structure and 1.6% of toner and auxiliary agent.
Comparative example 1
The specific implementation mode of the wire irradiation material is the same as that in example 1, except that the ethylene-vinyl acetate copolymer has a VA content of 26.7wt%, and the types are as follows: escorene TM Ultra LD 761.36。
Comparative example 2
The specific implementation mode of the wire irradiation material is the same as that of example 1, except that the aluminum hydroxide flame retardant comprises 99.6% of aluminum hydroxide and SiO 2 ≤0.05％，Fe 2 O 3 ≤0.02％，Na 2 O is less than or equal to 0.25 percent. The model is as follows: H-WF-5.
Performance test
1. And (3) testing mechanical properties: tensile strength and elongation at break were tested according to GB/T1040.
2. And (3) testing resistance performance: the volume resistance change of the wire-irradiated material was tested according to GB/T1410.
3. And (3) testing oil resistance: the change rate of the outer diameter of the wire irradiation material was measured according to ISO1817, and the test oil was diesel oil.
4. And (3) carrying out a copper wire blackening test: and (3) placing the extruded and granulated sample on a 135 ℃ open mill for scouring, extruding and coating the wire irradiation material on the copper wire by an extrusion coating process, and performing irradiation crosslinking to obtain the wire. Then tearing the cable material on the surface of the wire, observing the color of the copper wire inside, and observing whether the phenomenon of blackening exists.
Table 1 results of performance testing
Claims (10)
1. The wire irradiation material is characterized by comprising the following raw materials in percentage by mass: 35-43% of polyolefin resin, 50-60% of flame retardant, 1.5-2.3% of antioxidant, 1-2% of lubricant, 1.5-2% of compound with carbon-nitrogen six-section ring structure and 1.5-2.5% of toner and auxiliary agent.
2. The wire-irradiating material according to claim 1, wherein said polyolefin resin is a polyethylene-based copolymer.
3. The wire-irradiating material according to claim 2, wherein said polyethylene-based copolymer comprises at least one of ethylene-octene copolymer, ethylene-vinyl acetate copolymer, ethylene-hexene copolymer, and ethylene-pentene copolymer.
4. The wire-irradiating material according to claim 3, wherein said polyethylene-based copolymer is an ethylene-vinyl acetate copolymer.
5. The wire-irradiating material according to any one of claims 1 to 4, wherein said flame retardant comprises at least one of a magnesium hydroxide flame retardant, an aluminum hydroxide flame retardant and a halogen flame retardant.
6. The wire-irradiating material according to claim 5, wherein said flame retardant is an aluminum hydroxide flame retardant.
7. The wire-irradiating material according to claim 1, wherein said antioxidant comprises at least one of antioxidant 1010, antioxidant 1076, antioxidant 168, antioxidant 264, antioxidant CA, antioxidant DNP, and antioxidant MB.
8. The wire-irradiating material according to claim 1, wherein said lubricant comprises an ultra-high molecular weight polysiloxane and a polyolefin resin.
9. The wire irradiation material according to any one of claims 1 to 8, wherein the compound having a carbon-nitrogen six-membered ring structure comprises at least one of N-t-butoxycarbonyl-4-methylenepiperidine, 4- (N-benzyloxycarbonyl) -aminopiperidine, 3, 5-dimethoxypyridine, tris (hydroxyethyl) isocyanurate, and triallyl isocyanurate.
10. A method for preparing an electric wire irradiation material according to claim 9, comprising the steps of: weighing the raw materials according to the formula, putting the polyolefin resin and the lubricant into a high-speed mixer, uniformly mixing for 3-7min, then putting into an extruder, extruding and granulating, then adding the compound with the carbon-nitrogen six-section ring structure, the antioxidant, the toner and the auxiliary agent, carrying out plastication for 13-17min by an internal mixer, and extruding and granulating at 130-170 ℃ to obtain the wire irradiation material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210215139.2A CN115960411A (en) | 2022-03-07 | 2022-03-07 | Wire irradiation material and preparation method thereof |
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| CN106750708A (en) * | 2016-12-07 | 2017-05-31 | 安徽合聚阻燃新材料股份有限公司 | A kind of phosphorus nitrogen compounds flame resistance irradiation crosslinked halogen-free low smoke cables material |
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| CN106750708A (en) * | 2016-12-07 | 2017-05-31 | 安徽合聚阻燃新材料股份有限公司 | A kind of phosphorus nitrogen compounds flame resistance irradiation crosslinked halogen-free low smoke cables material |
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