CN111944253A - Protective tube for automobile wire harness and preparation method thereof - Google Patents
Protective tube for automobile wire harness and preparation method thereof Download PDFInfo
- Publication number
- CN111944253A CN111944253A CN202010603128.2A CN202010603128A CN111944253A CN 111944253 A CN111944253 A CN 111944253A CN 202010603128 A CN202010603128 A CN 202010603128A CN 111944253 A CN111944253 A CN 111944253A
- Authority
- CN
- China
- Prior art keywords
- parts
- wire harness
- protective tube
- polyvinyl chloride
- rare earth
- Prior art date
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- Pending
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- 230000001681 protective effect Effects 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 34
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 34
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 29
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 28
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 15
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000004709 Chlorinated polyethylene Substances 0.000 claims abstract description 13
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 11
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 11
- 239000000314 lubricant Substances 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 claims abstract description 9
- 239000004114 Ammonium polyphosphate Substances 0.000 claims abstract description 8
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims abstract description 8
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 8
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims abstract description 8
- 229920001276 ammonium polyphosphate Polymers 0.000 claims abstract description 8
- 235000010237 calcium benzoate Nutrition 0.000 claims abstract description 8
- 239000004301 calcium benzoate Substances 0.000 claims abstract description 8
- HZQXCUSDXIKLGS-UHFFFAOYSA-L calcium;dibenzoate;trihydrate Chemical compound O.O.O.[Ca+2].[O-]C(=O)C1=CC=CC=C1.[O-]C(=O)C1=CC=CC=C1 HZQXCUSDXIKLGS-UHFFFAOYSA-L 0.000 claims abstract description 8
- ZKXWKVVCCTZOLD-UHFFFAOYSA-N copper;4-hydroxypent-3-en-2-one Chemical compound [Cu].CC(O)=CC(C)=O.CC(O)=CC(C)=O ZKXWKVVCCTZOLD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000004611 light stabiliser Substances 0.000 claims abstract description 8
- 239000000600 sorbitol Substances 0.000 claims abstract description 8
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims abstract description 8
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 8
- SSKNCQWPZQCABD-UHFFFAOYSA-N 2-[2-[2-(2-heptanoyloxyethoxy)ethoxy]ethoxy]ethyl heptanoate Chemical compound CCCCCCC(=O)OCCOCCOCCOCCOC(=O)CCCCCC SSKNCQWPZQCABD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004593 Epoxy Substances 0.000 claims abstract description 7
- 235000019387 fatty acid methyl ester Nutrition 0.000 claims abstract description 7
- 235000012424 soybean oil Nutrition 0.000 claims abstract description 7
- 239000003549 soybean oil Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 22
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 18
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- LYRFLYHAGKPMFH-UHFFFAOYSA-N octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(N)=O LYRFLYHAGKPMFH-UHFFFAOYSA-N 0.000 claims description 14
- 238000000227 grinding Methods 0.000 claims description 13
- CFYGEIAZMVFFDE-UHFFFAOYSA-N neodymium(3+);trinitrate Chemical compound [Nd+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O CFYGEIAZMVFFDE-UHFFFAOYSA-N 0.000 claims description 13
- VCYCUECVHJJFIQ-UHFFFAOYSA-N 2-[3-(benzotriazol-2-yl)-4-hydroxyphenyl]ethyl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OCCC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 VCYCUECVHJJFIQ-UHFFFAOYSA-N 0.000 claims description 12
- 239000001361 adipic acid Substances 0.000 claims description 11
- 235000011037 adipic acid Nutrition 0.000 claims description 11
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 9
- 239000003446 ligand Substances 0.000 claims description 9
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 9
- 239000000347 magnesium hydroxide Substances 0.000 claims description 9
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 9
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 229940037312 stearamide Drugs 0.000 claims description 7
- 239000004698 Polyethylene Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 239000001993 wax Substances 0.000 claims description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000460 chlorine Substances 0.000 claims description 4
- 229910052801 chlorine Inorganic materials 0.000 claims description 4
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 2
- 229940075507 glyceryl monostearate Drugs 0.000 claims 1
- 239000001788 mono and diglycerides of fatty acids Substances 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 12
- 230000014759 maintenance of location Effects 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 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 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- AHAREKHAZNPPMI-UHFFFAOYSA-N hexa-1,3-diene Chemical compound CCC=CC=C AHAREKHAZNPPMI-UHFFFAOYSA-N 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 239000005543 nano-size silicon particle Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- 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)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Details Of Indoor Wiring (AREA)
Abstract
The invention discloses a protective tube for an automobile wire harness, which comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 5-9 parts of ethylene-vinyl acetate copolymer, 2-5 parts of chlorinated polyethylene, 0.4-1.2 parts of calcium benzoate, 0.2-1 part of zinc stearate, 0.3-1.5 parts of sorbitol, 12-24 parts of epoxidized soybean oil, 10-20 parts of epoxy fatty acid methyl ester, 4-9 parts of tetraethylene glycol diheptanoate, 0.5-1.5 parts of lubricant, 5-22 parts of composite filler, 3-8 parts of rare earth complex, 0.5-2.3 parts of copper acetylacetonate, 3-9 parts of aluminum hydroxide, 1-5 parts of ammonium polyphosphate, 1-5 parts of zinc borate, 10980.2-1 part of antioxidant, 1260.2-1.3 parts of antioxidant and UV40500.4-2 parts of light stabilizer. The invention also provides a preparation method of the protection tube, the process is simple, and the prepared protection tube has good flame retardance and aging resistance.
Description
Technical Field
The invention relates to the technical field of protective tubes, in particular to a protective tube for an automobile wire harness and a preparation method thereof.
Background
The automobile wire harness is a continuous carrier for various automobile components, mainly has the main functions of ensuring transmission of electric signals, ensuring the reliability of a connecting circuit, supplying a specified current value to electronic and electric components, preventing electromagnetic interference on peripheral circuits, eliminating short circuit of electric appliances, playing an irreplaceable role in the field of automobile circuits, and not only affecting the on-off of signals of the whole automobile, but also endangering the life safety of a driver due to the failure of the wire harness. In order to better protect the wire harness, a layer of protective pipe is required to wrap the outer layer of the wire harness. However, because the working environment of the automobile is special and the requirement on the protection tube is high, the material formula of the existing wire harness protection tube is still not reasonable, the flame retardance and the aging resistance are poor, the wire harness is sleeved in the protection tube, the reliability and the safety are low, and safety accidents are easily caused.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides the protection tube for the automobile wire harness and the preparation method thereof.
The invention provides a protective tube for an automobile wire harness, which comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 5-9 parts of ethylene-vinyl acetate copolymer, 2-5 parts of chlorinated polyethylene, 0.4-1.2 parts of calcium benzoate, 0.2-1 part of zinc stearate, 0.3-1.5 parts of sorbitol, 12-24 parts of epoxidized soybean oil, 10-20 parts of epoxy fatty acid methyl ester, 4-9 parts of tetraethylene glycol diheptanoate, 0.5-1.5 parts of lubricant, 5-22 parts of composite filler, 3-8 parts of rare earth complex, 0.5-2.3 parts of copper acetylacetonate, 3-9 parts of aluminum hydroxide, 1-5 parts of ammonium polyphosphate, 1-5 parts of zinc borate, 10980.2-1 part of antioxidant, 1260.2-1.3 parts of antioxidant and UV40500.4-2 parts of light stabilizer.
Preferably, the weight average molecular weight of the polyvinyl chloride is 8 to 10 ten thousand; the mass content of vinyl acetate in the ethylene-vinyl acetate copolymer is 25-35%; the mole content of chlorine in the chlorinated polyethylene is 34-36%.
Preferably, the lubricant is one or more of paraffin, stearic acid, stearamide, polyethylene wax and glycerin monostearate.
Preferably, the lubricant is stearamide, polyethylene wax and glycerin monostearate in a weight ratio of 1: 1: 1.
Preferably, the composite filler is a mixture of precipitated barium sulfate, nano silica, calcium carbonate and magnesium hydroxide, and the weight ratio of the precipitated barium sulfate to the nano silica to the calcium carbonate to the magnesium hydroxide is 1-5: 5-10: 2-6: 1-3.
Preferably, the rare earth complex is prepared by using 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole and adipic acid as ligands and neodymium nitrate as metal salts.
Preferably, in the preparation process of the rare earth complex, the molar ratio of 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole, adipic acid and neodymium nitrate is 1: 1: 2-4.
The invention also provides a preparation method of the protective tube for the automobile wire harness, which comprises the following steps: placing part of the polyvinyl chloride and the rare earth complex into a vibration grinding device, carrying out vibration grinding for 3-5h at the temperature of 45-50 ℃, then mixing with the rest raw materials for 15-30min at the temperature of 130-145 ℃, cooling to 40 ℃, and then placing into a double-screw extruder for extrusion molding.
Preferably, the weight of the portion of polyvinyl chloride is 5 to 12 wt% of the total weight of polyvinyl chloride; the rotation speed of the vibration grinding is 1000-1500 r/min.
Preferably, the rare earth complex can be prepared according to the following process: adding 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole and adipic acid into an ethanol water solution, adding neodymium nitrate to disperse uniformly, adjusting the pH value to be neutral, heating to 70-75 ℃, stirring to react for 20-35H, filtering, washing and drying.
Preferably, the rare earth complex can also be prepared according to the following process: adding 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole and adipic acid into a mixed solution of DMF and water, adding neodymium nitrate to disperse uniformly, adjusting the pH to 3-5 to obtain a reaction solution, placing the reaction solution into a hydrothermal reaction device, carrying out hydrothermal reaction for 50-70H at the temperature of 100 ℃ and 110 ℃, filtering, washing and drying.
The protective tube for the automobile wire harness specifically takes polyvinyl chloride as a main material, is added with ethylene-vinyl acetate copolymer and chlorinated polyethylene in a matching way, controls the proportion of the polyvinyl chloride, the vinyl acetate copolymer and the chlorinated polyethylene, ensures that the polyvinyl chloride, the vinyl acetate copolymer and the chlorinated polyethylene have good compatibility and exert a synergistic effect, and has excellent impact strength; the calcium benzoate, the zinc stearate and the sorbitol are added into a system, and can absorb hydrogen chloride generated by thermal decomposition of the polyvinyl chloride, so that the speed of the hydrogen chloride generated by thermal decomposition is obviously slowed down, the initial colorability of the PVC is improved, and simultaneously, the hydrogen chloride can be degraded to form ZnCl2Complexing to relieve the phenomenon of 'zinc burning', improving the long-term thermal stability of PVC, and after being matched with the antioxidant 1098, the antioxidant 126 and the light stabilizer UV4050, better inhibiting the degradation of PVC and endowing the protection tube with excellent heat resistance and aging resistance; aluminum hydroxide, ammonium polyphosphate and zinc borate are added into a system and have a synergistic effect with copper acetylacetonate, so that the obtained material has extremely high oxygen index and lower smoke density, and the protection tube is endowed with excellent flame retardant property on the premise of keeping mechanical property; the method specifically selects precipitated barium sulfate, nano-silica, calcium carbonate and magnesium hydroxide as raw materials of the composite filler, controls the weight ratio of each substance, and improves the heat resistance of the system while not reducing the impact strength of the system; the rare earth complex is 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl]Phenyl radical]-2H-benzotriazole and hexadiene diacid as ligands and neodymium nitrate as metal salt, wherein the ligand contains carboxyl, rare earth elements, double bonds and light stabilizing groups, and the ligand is added into a system, on one hand, the ligand can react with the double bonds generated in the preparation process of the protective tube, and the rare earth is matched with the double bondsThe material is introduced into a polyvinyl chloride molecular chain, and simultaneously generates a large amount of long-chain conjugated olefin which can absorb partial ultraviolet light, so that the stability of the protection tube is improved.
The performance of the protective tube for the automobile wire harness is tested, the flame retardant grade is A grade, and the smoke density grade is below 15, so that the protective tube has excellent flame retardant performance and good smoke suppression effect.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
A protective tube for an automobile wire harness comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 9 parts of ethylene-vinyl acetate copolymer, 2 parts of chlorinated polyethylene, 1.2 parts of calcium benzoate, 0.6 part of zinc stearate, 1.5 parts of sorbitol, 12 parts of epoxidized soybean oil, 17 parts of epoxy fatty acid methyl ester, 4 parts of tetraethylene glycol diheptanoate, 1.5 parts of lubricant, 17 parts of composite filler, 4 parts of rare earth complex, 2 parts of copper acetylacetonate, 3 parts of aluminum hydroxide, 5 parts of ammonium polyphosphate, 1 part of zinc borate, 10980.7 parts of antioxidant, 1260.2 parts of antioxidant and UV40502 parts of light stabilizer.
A preparation method of the protection tube for the automobile wire harness comprises the following steps: and (3) placing part of the polyvinyl chloride and the rare earth complex into a vibromilling device, vibromilling for 5h at 45 ℃, then mixing with the rest raw materials for 30min at 130 ℃, cooling to 40 ℃, and then placing into a double-screw extruder for extrusion molding.
Example 2
A protective tube for an automobile wire harness comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride with the weight-average molecular weight of 8 ten thousand, 5 parts of ethylene-vinyl acetate copolymer with the mass content of vinyl acetate of 35 percent, 5 parts of chlorinated polyethylene with the mol content of 35 percent, 0.7 part of calcium benzoate, 0.2 part of zinc stearate, 1 part of sorbitol, 24 parts of epoxidized soybean oil, 18 parts of epoxy fatty acid methyl ester, 9 parts of tetraethylene glycol diheptanoate, 1 part of paraffin, 1.25 parts of precipitated barium sulfate, 2.5 parts of nano-silica, 0.5 part of calcium carbonate, 0.75 part of magnesium hydroxide, 8 parts of rare earth complex, 2.3 parts of copper acetylacetonate, 9 parts of aluminum hydroxide, 3 parts of ammonium polyphosphate, 5 parts of zinc borate, 10981 parts of antioxidant, 1261.3 parts of antioxidant and UV40500.9 parts of light stabilizer;
the rare earth complex is prepared by taking 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole and adipic acid as ligands and neodymium nitrate as metal salt; in the preparation process of the rare earth complex, the molar ratio of 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole, adipic acid and neodymium nitrate is 1: 1: 2.
the invention also provides a preparation method of the protective tube for the automobile wire harness, which comprises the following steps: placing part of the polyvinyl chloride and rare earth complex into vibration grinding equipment, carrying out vibration grinding for 3h at 50 ℃, wherein the rotation speed of the vibration grinding is 1500r/min, then mixing the mixture with the rest raw materials at 145 ℃ for 15min, cooling to 40 ℃, and then placing the mixture into a double-screw extruder for extrusion molding; wherein the weight of the part of polyvinyl chloride is 12 wt% of the total weight of polyvinyl chloride.
Example 3
A protective tube for an automobile wire harness comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride with the weight-average molecular weight of 9 ten thousand, 4 parts of ethylene-vinyl acetate copolymer with the mass content of vinyl acetate of 25 percent, 3 parts of chlorinated polyethylene with the chlorine molar content of 36 percent, 0.4 part of calcium benzoate, 1 part of zinc stearate, 0.3 part of sorbitol, 16 parts of epoxidized soybean oil, 12 parts of epoxy fatty acid methyl ester, 6 parts of tetraethylene glycol diheptanoate, 0.1 part of stearic acid, 0.4 part of stearamide, 1.1 part of precipitated barium sulfate, 11 parts of nano-silica, 6.6 parts of calcium carbonate, 3.3 parts of magnesium hydroxide, 3 parts of rare earth complex, 0.5 part of copper acetylacetonate, 6 parts of aluminum hydroxide, 1 part of ammonium polyphosphate, 1.7 parts of zinc borate, 10980.2 parts of antioxidant, 1260.7 parts of antioxidant and 40500.4 parts of light stabilizer UV 40500.4;
the rare earth complex is prepared by taking 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole and adipic acid as ligands and neodymium nitrate as metal salt; in the preparation process of the rare earth complex, the molar ratio of 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole, adipic acid and neodymium nitrate is 1: 1: 2.2.
the invention also provides a preparation method of the protective tube for the automobile wire harness, which comprises the following steps: placing part of the polyvinyl chloride and rare earth complex in a vibration grinding device, carrying out vibration grinding for 4h at 48 ℃, then mixing with the rest raw materials for 20min at 140 ℃, cooling to 40 ℃, and then placing in a double-screw extruder for extrusion molding; wherein the weight of the part of polyvinyl chloride is 5 wt% of the total weight of polyvinyl chloride; the rotating speed of the vibromilling is 1200 r/min.
Example 4
A protective tube for an automobile wire harness comprises the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 7 parts of ethylene-vinyl acetate copolymer, 4 parts of chlorinated polyethylene, 1 part of calcium benzoate, 0.8 part of zinc stearate, 0.3 part of sorbitol, 18 parts of epoxidized soybean oil, 16 parts of epoxy fatty acid methyl ester, 9 parts of tetraethylene glycol diheptanoate, 0.9 part of lubricant, 12 parts of composite filler, 6 parts of rare earth complex, 2.1 parts of copper acetylacetonate, 6.5 parts of aluminum hydroxide, 3.2 parts of ammonium polyphosphate, 2.8 parts of zinc borate, 10980.7 parts of antioxidant, 1260.9 parts of antioxidant and 40501.5 parts of light stabilizer UV;
wherein the weight average molecular weight of the polyvinyl chloride is 10 ten thousand; the mass content of vinyl acetate in the ethylene-vinyl acetate copolymer is 30 percent; the mole content of chlorine in the chlorinated polyethylene is 34%;
the lubricant is stearamide, polyethylene wax and glycerin monostearate, and the weight ratio of the stearamide to the polyethylene wax to the glycerin monostearate is 1: 1: 1;
the composite filler is a mixture of precipitated barium sulfate, nano silicon dioxide, calcium carbonate and magnesium hydroxide, and the weight ratio of the precipitated barium sulfate to the nano silicon dioxide to the calcium carbonate to the magnesium hydroxide is 3: 5: 2: 3;
the rare earth complex is prepared by taking 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole and hexadiene diacid as ligands and neodymium nitrate as metal salt; in the preparation process of the rare earth complex, the molar ratio of 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole, adipic acid and neodymium nitrate is 1: 1: 4.
the invention also provides a preparation method of the protective tube for the automobile wire harness, which comprises the following steps: placing part of polyvinyl chloride and rare earth complex in a vibration grinding device, performing vibration grinding for 3.5h at 47 ℃, then mixing with the rest raw materials for 22min at 138 ℃, cooling to 40 ℃, and then placing in a double-screw extruder for extrusion molding; wherein the weight of the part of polyvinyl chloride is 9 wt% of the total weight of polyvinyl chloride; the rotating speed of the vibromilling is 1000 r/min.
Comparative example 1
The only difference from example 4 is that: without the rare earth complex of example 4.
The protective pipes of example 4 and comparative example 1 were subjected to a heat aging performance test according to the standard of GB/T2951.12-2008; tests show that the protective tube of example 4 has a tensile strength retention rate of 98.9% after aging for 2h, 98.3% after 4h, 97.6% after 6h and 96.3% after 8 h; in contrast, the protective tube of comparative example 1 had a tensile strength retention of 95.9% after aging for 2 hours, 93% after 4 hours, 91.4% after 6 hours, and 89.3% after 8 hours; the light aging test adopts an artificial ultraviolet lamp accelerated aging test method, the protection tube is placed in a light aging box, is irradiated by ultraviolet carbon arc light, is sampled at regular time, and takes the brittle start time of the protection tube as an aging termination evaluation index. The test temperature is 50 ℃, a group of samples are taken at intervals of 2 hours, and a tensile strength test is carried out, so that the tensile strength retention rate of the protection tube in the embodiment 4 after aging for 2 hours is 99.2%, the tensile strength retention rate after 4 hours is 95.6%, and the tensile strength retention rate after 6 hours is 88.9%; in contrast, the protective tube of comparative example 1 had a tensile strength retention of 95.9% after aging for 2 hours, 84.7% after 4 hours, and 74.1% after 6 hours.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The protection tube for the automobile wire harness is characterized by comprising the following raw materials in parts by weight: 100 parts of polyvinyl chloride, 5-9 parts of ethylene-vinyl acetate copolymer, 2-5 parts of chlorinated polyethylene, 0.4-1.2 parts of calcium benzoate, 0.2-1 part of zinc stearate, 0.3-1.5 parts of sorbitol, 12-24 parts of epoxidized soybean oil, 10-20 parts of epoxy fatty acid methyl ester, 4-9 parts of tetraethylene glycol diheptanoate, 0.5-1.5 parts of lubricant, 5-22 parts of composite filler, 3-8 parts of rare earth complex, 0.5-2.3 parts of copper acetylacetonate, 3-9 parts of aluminum hydroxide, 1-5 parts of ammonium polyphosphate, 1-5 parts of zinc borate, 10980.2-1 part of antioxidant, 1260.2-1.3 parts of antioxidant and UV40500.4-2 parts of light stabilizer.
2. The protective tube for automotive wire harness according to claim 1, wherein the weight average molecular weight of the polyvinyl chloride is 8 to 10 ten thousand; the mass content of vinyl acetate in the ethylene-vinyl acetate copolymer is 25-35%; the mole content of chlorine in the chlorinated polyethylene is 34-36%.
3. The protective tube for automotive wire harness according to claim 1, wherein the lubricant is one or a mixture of more of paraffin, stearic acid, stearamide, polyethylene wax, and glyceryl monostearate.
4. The protective tube for an automotive wire harness as claimed in claim 3, wherein the lubricant is one of stearamide, polyethylene wax, and glycerin monostearate in a weight ratio of 1: 1: 1.
5. The protective tube for an automotive wire harness as set forth in claim 1, wherein the composite filler is a mixture of precipitated barium sulfate, nano silica, calcium carbonate, and magnesium hydroxide, and the weight ratio of the precipitated barium sulfate, nano silica, calcium carbonate, and magnesium hydroxide is 1 to 5: 5-10: 2-6: 1-3.
6. The protective tube for automotive wire harnesses as claimed in claim 1, wherein said rare earth complex is prepared using 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole and adipic acid as ligands and neodymium nitrate as a metal salt.
7. The protective tube for automotive wiring harness as claimed in claim 6, wherein, in the preparation of the rare earth complex, the molar ratio of 2- [ 2-hydroxy-5- [2- (methacryloyloxy) ethyl ] phenyl ] -2H-benzotriazole, adipic acid, neodymium nitrate is 1: 1: 2-4.
8. A method for manufacturing a protective tube for automotive wire harness according to any one of claims 1 to 7, characterized by comprising the steps of: placing part of the polyvinyl chloride and the rare earth complex into a vibration grinding device, carrying out vibration grinding for 3-5h at the temperature of 45-50 ℃, then mixing with the rest raw materials for 15-30min at the temperature of 130-145 ℃, cooling to 40 ℃, and then placing into a double-screw extruder for extrusion molding.
9. The method for manufacturing a protective tube for automotive wire harness according to claim 8, wherein the weight of the portion of polyvinyl chloride is 5 to 12 wt% of the total weight of polyvinyl chloride; the rotation speed of the vibration grinding is 1000-1500 r/min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114822993A (en) * | 2022-05-17 | 2022-07-29 | 南京亿天塑料有限公司 | Heat-resistant anti-aging automotive wire harness and preparation method thereof |
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