CN113321874A - Ultraviolet irradiation crosslinked ethylene propylene rubber cable material and preparation method thereof - Google Patents
Ultraviolet irradiation crosslinked ethylene propylene rubber cable material and preparation method thereof Download PDFInfo
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- CN113321874A CN113321874A CN202110471881.5A CN202110471881A CN113321874A CN 113321874 A CN113321874 A CN 113321874A CN 202110471881 A CN202110471881 A CN 202110471881A CN 113321874 A CN113321874 A CN 113321874A
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- 239000000463 material Substances 0.000 title claims abstract description 66
- 229920000181 Ethylene propylene rubber Polymers 0.000 title claims abstract description 58
- 238000002360 preparation method Methods 0.000 title description 15
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 19
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 19
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 13
- 239000003999 initiator Substances 0.000 claims abstract description 10
- 239000012766 organic filler Substances 0.000 claims abstract description 8
- 229920002943 EPDM rubber Polymers 0.000 claims description 22
- 229920005989 resin Polymers 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 13
- 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 8
- -1 polypropylene Polymers 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- OKKRPWIIYQTPQF-UHFFFAOYSA-N Trimethylolpropane trimethacrylate Chemical compound CC(=C)C(=O)OCC(CC)(COC(=O)C(C)=C)COC(=O)C(C)=C OKKRPWIIYQTPQF-UHFFFAOYSA-N 0.000 claims description 4
- WOXXJEVNDJOOLV-UHFFFAOYSA-N ethenyl-tris(2-methoxyethoxy)silane Chemical compound COCCO[Si](OCCOC)(OCCOC)C=C WOXXJEVNDJOOLV-UHFFFAOYSA-N 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 4
- BJELTSYBAHKXRW-UHFFFAOYSA-N 2,4,6-triallyloxy-1,3,5-triazine Chemical compound C=CCOC1=NC(OCC=C)=NC(OCC=C)=N1 BJELTSYBAHKXRW-UHFFFAOYSA-N 0.000 claims description 3
- XDLMVUHYZWKMMD-UHFFFAOYSA-N 3-trimethoxysilylpropyl 2-methylprop-2-enoate Chemical compound CO[Si](OC)(OC)CCCOC(=O)C(C)=C XDLMVUHYZWKMMD-UHFFFAOYSA-N 0.000 claims description 3
- MPIAGWXWVAHQBB-UHFFFAOYSA-N [3-prop-2-enoyloxy-2-[[3-prop-2-enoyloxy-2,2-bis(prop-2-enoyloxymethyl)propoxy]methyl]-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(COC(=O)C=C)(COC(=O)C=C)COCC(COC(=O)C=C)(COC(=O)C=C)COC(=O)C=C MPIAGWXWVAHQBB-UHFFFAOYSA-N 0.000 claims description 3
- JQRRFDWXQOQICD-UHFFFAOYSA-N biphenylen-1-ylboronic acid Chemical compound C12=CC=CC=C2C2=C1C=CC=C2B(O)O JQRRFDWXQOQICD-UHFFFAOYSA-N 0.000 claims description 3
- 229920013716 polyethylene resin Polymers 0.000 claims description 3
- AYEKOFBPNLCAJY-UHFFFAOYSA-O thiamine pyrophosphate Chemical compound CC1=C(CCOP(O)(=O)OP(O)(O)=O)SC=[N+]1CC1=CN=C(C)N=C1N AYEKOFBPNLCAJY-UHFFFAOYSA-O 0.000 claims description 3
- 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
- 239000004743 Polypropylene Substances 0.000 claims description 2
- 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 2
- 238000007796 conventional method Methods 0.000 claims description 2
- 238000005336 cracking Methods 0.000 claims description 2
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 2
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 claims description 2
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 claims description 2
- 229920005672 polyolefin resin Polymers 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 239000011256 inorganic filler Substances 0.000 abstract description 6
- 229910003475 inorganic filler Inorganic materials 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 239000011368 organic material Substances 0.000 abstract 1
- 238000004132 cross linking Methods 0.000 description 36
- 238000011056 performance test Methods 0.000 description 20
- 238000012360 testing method Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 229920000092 linear low density polyethylene Polymers 0.000 description 10
- 239000004707 linear low-density polyethylene Substances 0.000 description 10
- 229920001577 copolymer Polymers 0.000 description 9
- 229920001684 low density polyethylene Polymers 0.000 description 8
- 239000004702 low-density polyethylene Substances 0.000 description 8
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 7
- 239000012965 benzophenone Substances 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000000178 monomer Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- UGVRJVHOJNYEHR-UHFFFAOYSA-N 4-chlorobenzophenone Chemical compound C1=CC(Cl)=CC=C1C(=O)C1=CC=CC=C1 UGVRJVHOJNYEHR-UHFFFAOYSA-N 0.000 description 3
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical group [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000005038 ethylene vinyl acetate Substances 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- 239000005977 Ethylene Substances 0.000 description 2
- 229920002367 Polyisobutene Polymers 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- ISAOCJYIOMOJEB-UHFFFAOYSA-N benzoin Chemical compound C=1C=CC=CC=1C(O)C(=O)C1=CC=CC=C1 ISAOCJYIOMOJEB-UHFFFAOYSA-N 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920002397 thermoplastic olefin Polymers 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- PRBHEGAFLDMLAL-GQCTYLIASA-N (4e)-hexa-1,4-diene Chemical compound C\C=C\CC=C PRBHEGAFLDMLAL-GQCTYLIASA-N 0.000 description 1
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 description 1
- HECLRDQVFMWTQS-RGOKHQFPSA-N 1755-01-7 Chemical compound C1[C@H]2[C@@H]3CC=C[C@@H]3[C@@H]1C=C2 HECLRDQVFMWTQS-RGOKHQFPSA-N 0.000 description 1
- 244000028419 Styrax benzoin Species 0.000 description 1
- 235000000126 Styrax benzoin Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000008411 Sumatra benzointree Nutrition 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229960002130 benzoin Drugs 0.000 description 1
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- FONOSWYYBCBQGN-UHFFFAOYSA-N ethylene dione Chemical compound O=C=C=O FONOSWYYBCBQGN-UHFFFAOYSA-N 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000019382 gum benzoic Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000003211 polymerization photoinitiator Substances 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229920006346 thermoplastic polyester elastomer Polymers 0.000 description 1
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical compound C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2312/00—Crosslinking
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Insulated Conductors (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention relates to an ultraviolet irradiation crosslinked ethylene propylene rubber cable material which is prepared from the following raw materials in parts by weight: 100 parts of ethylene propylene rubber; 10-100 parts of organic filler; 0.5-4 parts of ultraviolet initiator; 0.2-3 parts of photosensitive cross-linking agent; 0.4-1.5 parts of a silane coupling agent; 0.1 to 1.0 portion of antioxidant. The cable material has the advantages of high volume resistivity, strong ultraviolet light penetrating power and the like, and solves the key technical problems that the deep penetrating power of the existing ultraviolet light in ethylene propylene rubber reinforced by a large amount of filled inorganic filler is weakened, the insulating property of the material is reduced and the like by adding a technical means of filling the ultraviolet light with an organic material.
Description
Technical Field
The invention belongs to the technical field of rubber crosslinked cable materials, and particularly relates to an ultraviolet irradiation crosslinked ethylene propylene rubber cable material and a preparation method thereof.
Background
At present, the existing ethylene propylene rubber crosslinking modes generally comprise the following three modes: the first is continuous sulfurizing process with sulfur or peroxide as cross-linking agent, the second is electron ray irradiation process with electron accelerator and the third is silane cross-linking process with silane as main cross-linking agent. However, the three crosslinking methods have certain defects, the peroxide crosslinking needs a special high-pressure steam vulcanization pipeline, the process flow is complex, the energy consumption is high, the energy efficiency is low, the small-batch intermittent production waste is large, and the method is not environment-friendly; the high-energy electron radiation crosslinking equipment has large investment, complex operation and maintenance and high protection requirements, and the wire core needs to be subjected to independent radiation crosslinking; the silane crosslinking is separately put into steam/warm water for crosslinking after the wire core is extruded, the process flow is more complex, the product period is long, and the cost is higher.
In addition, an ultraviolet irradiation crosslinking method is adopted, the method has the advantages of low investment, high production efficiency, small occupied area, convenient operation, low production and processing cost and the like, but the ethylene propylene rubber material crosslinked by the method at present has the defects of low volume resistivity, shallow light penetration depth and the like due to the addition of a large amount of inorganic filler. Such as: chinese patent CN101434728A describes an ultraviolet light crosslinked ethylene propylene diene monomer cable insulating material and a preparation method thereof, and Chinese patent CN102161801A describes an ultraviolet light deep crosslinked ethylene propylene diene monomer cable material and a preparation method of an insulating or sheath layer thereof, but the ultraviolet light crosslinked ethylene propylene diene monomer formula systems related by the two patents are added with 50-60 wt% of reinforcing inorganic filler, so that the volume resistivity of the ethylene propylene diene monomer insulating material containing a large amount of inorganic filler is obviously reduced, and the maximum volume resistivity is less than or equal to 1.1 multiplied by 1015Omega cm; meanwhile, a large amount of inorganic filler is filled, so that ultraviolet light cannot penetrate through the rubber insulating layer easily, the ultraviolet light penetrating power is obviously weakened due to insulation and light tightness, and the light penetrating depth is less than or equal to 3.0 mm. Based on the above, the ultraviolet irradiation crosslinked ethylene propylene rubber cable material with high volume resistivity and strong ultraviolet light penetrating power needs to be developed and researched.
Disclosure of Invention
The invention aims to overcome the defects of ultraviolet light crosslinked ethylene propylene rubber in the prior art, and provides an ultraviolet light irradiation crosslinked ethylene propylene rubber cable material which has the advantages of high volume resistivity, strong ultraviolet light penetrating power and the like.
In addition, the invention also provides a preparation method of the ultraviolet light irradiation crosslinking ethylene propylene rubber cable material, the equipment investment is low, the production efficiency is high, the process flow is simple, energy is saved, the environment is protected, the insulation performance and the electrical performance of the obtained light crosslinking ethylene propylene rubber cable are good, the light penetration depth is large, and the light is uniform, transparent and bright and has large thickness.
In order to achieve the purpose, the invention adopts the following technical scheme:
the ultraviolet radiation crosslinked ethylene propylene rubber cable material comprises the following raw materials in parts by weight: 100 parts of ethylene propylene rubber; 10-100 parts of organic filler; 0.5-4 parts of ultraviolet initiator; 0.2-3 parts of photosensitive cross-linking agent; 0.4-1.5 parts of a silane coupling agent; 0.1 to 1.0 portion of antioxidant. The raw materials can be fully and uniformly mixed to prepare a flaky material or a granular material, namely the ultraviolet light crosslinking ethylene propylene rubber cable material.
Specifically, the ethylene propylene rubber is selected from ethylene propylene rubber or ethylene propylene diene monomer, the ethylene content is more than or equal to 60 percent, and the Mooney viscosity is less than or equal to 50 percent. When ethylene propylene diene monomer is selected, the third monomer content is less than 5%. The ethylene propylene diene monomer comprises E type ethylene propylene diene monomer with a third monomer of vinylidene norbornene, D type ethylene propylene diene monomer with a third monomer of dicyclopentadiene or H type ethylene propylene diene monomer with a third monomer of 1, 4-hexadiene.
The organic filler of the present invention is selected from one or a combination mixture of two or more of polyethylene resin, polypropylene resin, thermoplastic elastomer materials (e.g., thermoplastic rubber TPR, thermoplastic polyurethane TPU, thermoplastic polyolefin elastomer TPO, polyester elastomer TPEE, dynamic fully vulcanized thermoplastic elastomer TPV, etc.), polyolefin resins (e.g., polyisobutylene PIB, poly 4-methyl-1-pentene PMP, ethylene-vinyl acetate copolymer E/VAC, ethylene-ethyl acrylate copolymer E/VA, ethylene/vinyl acetate copolymer EVA, ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-octene copolymer, etc.), and materials miscible with ethylene-propylene rubber. Wherein the polyethylene resin is one or a mixture of two or more of high density polyethylene resin, medium density polyethylene resin, low density polyethylene resin or linear low density polyethylene resin.
The ultraviolet light initiator is a free radical polymerization photoinitiator, and can be selected from hydrogen abstraction type photoinitiators (for example, Benzophenone (BP) and derivatives thereof, 4-chlorobenzophenone (4-CBP), thioxanthone, anthraquinone and the like can be selected) and cracking type photoinitiators (for example, one or a mixture of more than two of benzoin dimethyl ether (BDK), 2-hydroxy-2-methyl-1-phenyl acetone, dialkoxy acetophenone, alpha-hydroxyalkyl aryl ketone, diphenyl ethylene dione, alpha-dimethoxy-alpha-phenyl acetophenone, 1-hydroxy-cyclohexyl-phenyl ketone and the like can be selected).
The photosensitive cross-linking agent is any one or a mixture of more than two of triallyl isocyanurate (TAIC), trimethylolpropane triacrylate (TMPTA), triallyl cyanurate (TAC), trimethylolpropane trimethacrylate (TMPTMA), trimethylolpropane diallyl ether (TMPAE), triallyl isocyanurate, dipentaerythritol hexaacrylate and the like.
The silane coupling agent is any one or a mixture of more than two of vinyl triethoxysilane (KH 151), vinyl trimethoxysilane (KH 171), vinyl tris (2-methoxyethoxy) silane (KH 172), vinyl tris (beta-methoxyethoxy) silane (A172), gamma-methacryloxypropyl trimethoxysilane (KH 570) and the like.
The antioxidant is one or a mixture of more than two of an antioxidant 1010, an antioxidant 168, an antioxidant 300, an antioxidant DLTP, an antioxidant TPP and trityl phosphate.
The preparation method of the ultraviolet irradiation crosslinked ethylene propylene rubber cable material comprises the following specific steps: the raw materials are taken according to the proportion and mixed evenly, and then the mixture is extruded into a flaky material or granulated by adopting a conventional method in the field to obtain the cable material of the flaky material or the granular material.
Compared with the prior art, the invention has the following advantages:
the ultraviolet light crosslinking ethylene propylene rubber cable material provided by the invention is a novel light-transmitting transparent ultraviolet light crosslinking ethylene propylene rubber cable material, does not contain inorganic filler, is added by adopting organic filler, adopts proper components and proportion, can obviously improve the insulating property of the light crosslinking ethylene propylene rubber material, greatly improves the deep penetration capability and the penetration depth of ultraviolet light in ethylene propylene rubber, and improves the light-induced crosslinking efficiency. The cable material can be fully crosslinked only a few seconds after being irradiated by an ultraviolet light source in a molten state, and the obtained ethylene propylene rubber insulating product has excellent insulating property and volume resistivity of more than or equal to 1.0 multiplied by 1016Omega cm; the material is transparent and bright, and the photocrosslinking depth is improved to more than 4.0 mm. Compared with the existing ultraviolet crosslinking ethylene propylene diene monomer insulated cable, the ultraviolet crosslinking ethylene propylene diene monomer insulated cable material and the preparation method thereof have the advantages of good insulating property, large photocrosslinking depth, high production efficiency, energy conservation, environmental protection and low processing cost.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following examples, but the scope of the present invention is not limited thereto.
The raw materials used in the following examples are all conventional materials known in the art or ordinary commercial products that can be directly purchased.
Example 1
The invention relates to an ultraviolet irradiation crosslinked ethylene propylene rubber cable material which mainly comprises the following raw materials in parts by weight: 100 parts of E type ethylene propylene diene monomer EPDM; 100 parts of linear low-density polyethylene resin LLDPE (Linear Low Density polyethylene) of an organic filler; 2 parts of an ultraviolet initiator BP; 1 part of photosensitive cross-linking agent TMPTMA; 1 part of silane coupling agent (KH 151); 10100.2 parts of antioxidant and 0.1 part of DLTP.
The preparation method of the insulating material comprises the following steps: according to the weight parts, the E-type ethylene propylene diene monomer, the organic filler, the ultraviolet light initiator, the photosensitive cross-linking agent, the silane coupling agent and the antioxidant are taken, the materials are simultaneously added into a mixing roll or a high-speed mixing roll to be fully mixed, the mixture is added into a double-screw extruder to be extruded into a sheet material or granulated, the mixing temperature and the extrusion temperature are 150-190 ℃, and the sheet material or granular material is prepared, so that the ultraviolet light irradiation cross-linked ethylene propylene rubber cable material is obtained.
The ultraviolet light irradiation crosslinking ethylene propylene rubber cable material prepared by the method is melted and extruded on a cable conductive wire core to form an insulating layer or a sheath layer with the thickness of 4.2mm, and then passes through the main wavelength of 250-420nm and the light intensity of more than or equal to 2000mW/cm in any range of the irradiation cavity space2The ultraviolet light source crosslinking equipment can perform molten state online continuous ultraviolet irradiation on the insulating layer or the sheath layer for a plurality of seconds to crosslink.
For the ultraviolet irradiation crosslinked ethylene propylene rubber cable material prepared in the embodiment 1, the photocrosslinking depth can reach 4.2 mm; the crosslinking speed is high, the thermal elongation test performance test is carried out according to GB/T2951.21-2008, and the thermal elongation after crosslinking is 55%; excellent insulating property, and volume resistivity of about 4.6 multiplied by 10 according to the thermal extension test performance test of GB/T1410-200616Ω·cm。
Example 2
The invention relates to an ultraviolet irradiation crosslinked ethylene propylene rubber cable material which mainly comprises the following raw materials in parts by weight: 100 parts of E type ethylene propylene diene monomer; 10 parts of ethylene-octene copolymer; 10 parts of ethylene-butene copolymer; 30 parts of low-density polyethylene resin LDPE; 1.2 parts of ultraviolet photoinitiator BDK and 0.8 part of BP; 2.5 parts of photosensitive cross-linking agent TAIC; 0.8 part of silane coupling agent (KH 171); 10100.5 parts of antioxidant and 0.25 part of TPP.
The preparation method and the performance test of the ultraviolet irradiation crosslinked ethylene propylene rubber cable material refer to example 1.
For the ultraviolet irradiation crosslinked ethylene propylene rubber cable material prepared in the embodiment 2, the photocrosslinking depth can reach 4.3 mm; the crosslinking speed is high, the thermal elongation test performance test is carried out according to GB/T2951.21-2008, and the thermal elongation after crosslinking is 60%; excellent insulating property, and volume resistivity of about 4.1 multiplied by 10 according to the thermal extension test performance test of GB/T1410-200616Ω·cm。
Example 3
The invention relates to an ultraviolet irradiation crosslinked ethylene propylene rubber cable material which mainly comprises the following raw materials in parts by weight: 100 parts of E type ethylene propylene diene monomer; 40 parts of low-density polyethylene resin LDPE; 20 parts of ethylene-butene copolymer; 1.5 parts of ultraviolet initiator BP; 1.5 parts of photosensitive cross-linking agent TAIC; 1 part of silane coupling agent (KH 172); 3000.5 parts of antioxidant and 0.5 part of trityl phosphate.
The preparation method and the performance test of the ultraviolet irradiation crosslinked ethylene propylene rubber cable material refer to example 1.
For the ultraviolet irradiation crosslinked ethylene propylene rubber cable material prepared in the embodiment 3, the photocrosslinking depth can reach 4.1 mm; the crosslinking speed is high, the thermal elongation test performance test is carried out according to GB/T2951.21-2008, and the thermal elongation after crosslinking is 50%; excellent insulating property, and volume resistivity of about 5.2 multiplied by 10 according to the thermal extension test performance test of GB/T1410-200616Ω·cm。
Example 4
The invention relates to an ultraviolet irradiation crosslinked ethylene propylene rubber cable material which mainly comprises the following raw materials in parts by weight: 100 parts of D type ethylene propylene diene monomer; 20 parts of linear low-density polyethylene resin LLDPE; 20 parts of high-density polyethylene resin HDPE; 0.8 part of ultraviolet photoinitiator BDK; 1 part of photosensitive cross-linking agent TMPTA; 0.8 part of a silane coupling agent (A172); 10100.2 parts of antioxidant and 0.1 part of DLTP.
The preparation method and the performance test of the ultraviolet irradiation crosslinked ethylene propylene rubber cable material refer to example 1.
For the ultraviolet irradiation crosslinked ethylene propylene rubber cable material prepared in this embodiment 4, the photocrosslinking depth can reach 4.0 mm; the crosslinking speed is high, the thermal elongation test performance test is carried out according to GB/T2951.21-2008, and the thermal elongation after crosslinking is 45%; excellent insulating property, and volume resistivity of about 5.7 multiplied by 10 according to the thermal extension test performance test of GB/T1410-200616Ω·cm。
Example 5
The invention relates to an ultraviolet irradiation crosslinked ethylene propylene rubber cable material which mainly comprises the following raw materials in parts by weight: 100 parts of H-type ethylene propylene diene monomer; 40 parts of linear low-density polyethylene resin LLDPE; 20 parts of low-density polyethylene resin LDPE; 4-CBP 1 parts of ultraviolet initiator and BDK 1 part; 3 parts of photosensitive cross-linking agent TAIC; 1 part of silane coupling agent (KH 151); 3000.5 parts of antioxidant and 0.5 part of trityl phosphate.
The preparation method and the performance test of the ultraviolet irradiation crosslinked ethylene propylene rubber cable material refer to example 1.
For the ultraviolet irradiation crosslinked ethylene propylene rubber cable material prepared in this example 5, the photocrosslinking depth can reach 4.2 mm; the crosslinking speed is high, the thermal elongation test performance test is carried out according to GB/T2951.21-2008, and the thermal elongation after crosslinking is 55%; excellent insulating property, and volume resistivity of about 3.8 multiplied by 10 according to the thermal extension test performance test of GB/T1410-200616Ω·cm。
Example 6
The invention relates to an ultraviolet irradiation crosslinked ethylene propylene rubber cable material which mainly comprises the following raw materials in parts by weight: 100 parts of E type ethylene propylene diene monomer; 35 parts of an ethylene-octene copolymer; 15 parts of low-density polyethylene resin; 0.8 part of ultraviolet photoinitiator BDK; 1 part of photosensitive cross-linking agent TMPTA; 0.8 part of a silane coupling agent (A172); 10100.2 parts of antioxidant and 0.1 part of DLTP.
The preparation method and the performance test of the ultraviolet irradiation crosslinked ethylene propylene rubber cable material refer to example 1.
For the ultraviolet irradiation crosslinked ethylene propylene rubber cable material prepared in this embodiment 4, the photocrosslinking depth can reach 4.4 mm; the crosslinking speed is high, the thermal elongation test performance test is carried out according to GB/T2951.21-2008, and the thermal elongation after crosslinking is 65%; excellent insulating property, and volume resistivity of about 3.5 multiplied by 10 according to the thermal extension test performance test of GB/T1410-200616Ω·cm。
Example 7
The invention relates to an ultraviolet irradiation crosslinked ethylene propylene rubber cable material which mainly comprises the following raw materials in parts by weight: 100 parts of D type ethylene propylene diene monomer; 25 parts of ethylene-butylene copolymer, 5 parts of ethylene-vinyl acetate copolymer and 20 parts of linear low-density polyethylene resin LLDPE; ultraviolet initiator 2-hydroxy-2-methyl-1-phenyl acetone 1 part, BP 0.8 part; 1 part of dipentaerythritol hexaacrylate; 1 part of silane coupling agent (KH 151); 3000.5 parts of antioxidant and 0.5 part of trityl phosphate.
The preparation method and the performance test of the ultraviolet irradiation crosslinked ethylene propylene rubber cable material refer to example 1.
For the ultraviolet irradiation crosslinked ethylene propylene rubber cable material prepared in this example 5, the photocrosslinking depth can reach 4.2 mm; the crosslinking speed is high, the thermal elongation test performance test is carried out according to GB/T2951.21-2008, and the thermal elongation after crosslinking is 52 percent; excellent insulating property, and volume resistivity of about 3.0 multiplied by 10 according to the thermal extension test performance test of GB/T1410-200616Ω·cm。
In summary, it can be seen that: the cable material is transparent and bright, and the photocrosslinking depth is improved to more than 4.0 mm; the crosslinking speed is high, and the thermal extension after crosslinking is less than or equal to 80 percent; excellent insulating property, volume resistivity more than or equal to 1.0 multiplied by 1016Ω·cm。
Claims (7)
1. An ultraviolet irradiation crosslinked ethylene propylene rubber cable material is characterized by comprising the following raw materials in parts by weight: 100 parts of ethylene propylene rubber; 10-100 parts of organic filler; 0.5-4 parts of ultraviolet initiator; 0.2-3 parts of photosensitive cross-linking agent; 0.4-1.5 parts of a silane coupling agent; 0.1 to 1.0 portion of antioxidant.
2. The ultraviolet radiation crosslinked ethylene propylene rubber cable material as claimed in claim 1, wherein the ethylene propylene rubber is selected from ethylene propylene rubber or ethylene propylene diene monomer.
3. The ultraviolet light irradiation crosslinked ethylene propylene rubber cable material as claimed in claim 1 or 2, wherein the organic filler is one or a mixture of two or more selected from polyethylene resin, polypropylene resin, thermoplastic elastomer materials, polyolefin resins and materials compatible with ethylene propylene rubber.
4. The ultraviolet light irradiation crosslinked ethylene propylene rubber cable material as claimed in claim 1 or 2, wherein the ultraviolet light initiator is selected from one or a mixture of more than two of hydrogen abstraction type photoinitiator and cracking type photoinitiator.
5. The ultraviolet radiation crosslinked ethylene propylene rubber cable material of claim 1, wherein the photosensitive crosslinking agent is one or a mixture of two or more of triallyl isocyanurate, trimethylolpropane triacrylate, triallyl cyanurate, trimethylolpropane trimethacrylate, trimethylolpropane diallyl ether, triallyl isocyanurate and dipentaerythritol hexaacrylate; the silane coupling agent is any one or a mixture of more than two of vinyl triethoxysilane, vinyl trimethoxysilane, vinyl tri (2-methoxyethoxy) silane, vinyl tri (beta-methoxyethoxy) silane and gamma-methacryloxypropyl trimethoxysilane.
6. The ultraviolet light irradiation crosslinked ethylene propylene rubber cable material as claimed in claim 1, wherein the antioxidant is one or a mixture of more than two of antioxidant 1010, antioxidant 168, antioxidant 300, antioxidant DLTP, antioxidant TPP and trityl phosphate.
7. The process for preparing cable material of crosslinked ethylene-propylene rubber under ultraviolet irradiation as claimed in any one of claims 1 to 6, wherein the raw materials are taken in proportion and mixed uniformly, and then extruded into sheet material or granulated by conventional method in the art to obtain cable material of sheet material or granular material.
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