CN113773570A - 一种电缆用复合材料及其制备方法 - Google Patents
一种电缆用复合材料及其制备方法 Download PDFInfo
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- CN113773570A CN113773570A CN202010515923.6A CN202010515923A CN113773570A CN 113773570 A CN113773570 A CN 113773570A CN 202010515923 A CN202010515923 A CN 202010515923A CN 113773570 A CN113773570 A CN 113773570A
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- hydrotalcite
- antioxidant
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- 239000002131 composite material Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 47
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims abstract description 43
- 229960001545 hydrotalcite Drugs 0.000 claims abstract description 43
- 229910001701 hydrotalcite Inorganic materials 0.000 claims abstract description 43
- 238000001035 drying Methods 0.000 claims abstract description 40
- 239000004698 Polyethylene Substances 0.000 claims abstract description 38
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 38
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 38
- -1 polyethylene Polymers 0.000 claims abstract description 36
- 239000000314 lubricant Substances 0.000 claims abstract description 34
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 28
- 239000007822 coupling agent Substances 0.000 claims abstract description 27
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims abstract description 26
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims abstract description 26
- 239000000347 magnesium hydroxide Substances 0.000 claims abstract description 26
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims abstract description 26
- 229920000573 polyethylene Polymers 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 15
- 238000004806 packaging method and process Methods 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 47
- 238000005303 weighing Methods 0.000 claims description 30
- 239000000203 mixture Substances 0.000 claims description 23
- 238000001125 extrusion Methods 0.000 claims description 20
- 239000002994 raw material Substances 0.000 claims description 20
- 238000005469 granulation Methods 0.000 claims description 10
- 230000003179 granulation Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 8
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 5
- 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 4
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 4
- 239000008116 calcium stearate Substances 0.000 claims description 4
- 235000013539 calcium stearate Nutrition 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 229920002943 EPDM rubber Polymers 0.000 claims description 3
- SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical group [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 3
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 3
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical group O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 3
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical group OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 2
- BCKXLBQYZLBQEK-KVVVOXFISA-M Sodium oleate Chemical compound [Na+].CCCCCCCC\C=C/CCCCCCCC([O-])=O BCKXLBQYZLBQEK-KVVVOXFISA-M 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 150000004665 fatty acids Chemical class 0.000 claims description 2
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000012188 paraffin wax Substances 0.000 claims description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 2
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 2
- 239000011118 polyvinyl acetate Substances 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims 1
- FTQWRYSLUYAIRQ-UHFFFAOYSA-N n-[(octadecanoylamino)methyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCNC(=O)CCCCCCCCCCCCCCCCC FTQWRYSLUYAIRQ-UHFFFAOYSA-N 0.000 claims 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims 1
- 229920005573 silicon-containing polymer Polymers 0.000 claims 1
- 238000003756 stirring Methods 0.000 claims 1
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract description 26
- 239000000779 smoke Substances 0.000 abstract description 16
- 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 abstract description 9
- 239000003063 flame retardant Substances 0.000 abstract description 9
- 239000012752 auxiliary agent Substances 0.000 abstract description 2
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000007792 addition Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 150000001875 compounds Chemical class 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
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- ZJOLCKGSXLIVAA-UHFFFAOYSA-N ethene;octadecanamide Chemical compound C=C.CCCCCCCCCCCCCCCCCC(N)=O.CCCCCCCCCCCCCCCCCC(N)=O ZJOLCKGSXLIVAA-UHFFFAOYSA-N 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910021385 hard carbon Inorganic materials 0.000 description 1
- FEEPBTVZSYQUDP-UHFFFAOYSA-N heptatriacontanediamide Chemical compound NC(=O)CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC(N)=O FEEPBTVZSYQUDP-UHFFFAOYSA-N 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012796 inorganic flame retardant Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- 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
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/285—Feeding the extrusion material to the extruder
- B29C48/297—Feeding the extrusion material to the extruder at several locations, e.g. using several hoppers or using a separate additive feeding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2948/00—Indexing scheme relating to extrusion moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C2948/00—Indexing scheme relating to extrusion moulding
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
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- 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
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- C08K2003/2224—Magnesium hydroxide
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- C08L2203/00—Applications
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- Spectroscopy & Molecular Physics (AREA)
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Abstract
本发明公开了一种电缆用复合材料及其制备方法,该电缆用复合材料由以下重量份数组分组成:20~45份局乙烯醋酸乙烯酯,5~20份低分子量聚乙烯,25~40份氢氧化铝,10~30份氢氧化镁,1~15份水滑石,0.2~0.8份抗氧剂,0.5~1.5份润滑剂,0.2~1份偶联剂,2~12份相容剂,0.5~2.5份耐磨剂。本发明一种电缆用复合材料制备方法包括干燥、挤出、造粒及包装工序。本发明公开的一种电缆用复合材料,能达到UL94阻燃等级V0,能广泛应用于各种电缆,特别是在寒冷地段,以及在受到外界摩擦的环境中,具有很强的使用价值。创新性在于通过加入功能性助剂,让材料获得特殊性能,即具有良好的耐磨性、耐低温性能以及低烟性能,让本材料生产的电缆线能用于有耐寒耐磨等特殊环境中,环境友好易回收。
Description
技术领域
本发明属于电缆料技术领域,具体涉及一种电缆用复合材料及其制备方法。
技术背景
电缆线作为一种必需品,在很多地方都可以看到,其涉及到人们生活、工业等方方面面。对于专供传输电能和通讯信号使用的电线电缆,不仅要求其可以阻止火焰蔓延,还要可以维持电缆继续传输电能和通讯信号,而且在燃烧时还应具有低发烟量、产生气体腐蚀性低、利于工作人员安全撤离现场等特点。因此,无卤、低烟、阻燃等性能成为电线电缆评价的重要指标,往往作为应用的基本条件。电线电缆材料容易出现不耐高温、不耐低温的问题,导致使用寿命缩短,甚至出现安全隐患,尤其是对于冬天等季节,或者极地等地域。同时在一些特殊领域如电力系统、信息传输系统以及机械设备、仪表系统中有部分电缆线要求具有良好的耐磨性能,否则对电缆的应用范围以及使用寿命具有重要的影响。目前有对电缆料进行改善,如中国专利申请CN 106519409A公开了一种辐照交联低烟无卤阻燃电缆材料,包括乙烯-醋酸乙烯共聚物、聚乙烯、相容剂、无机阻燃剂和改性剂等组分,通过乙烯-醋酸乙烯共聚物与聚乙烯、改性剂等的协同作用,具有低烟、无毒、环保等优点,具有良好的拉伸强度和耐老化性,阻燃性和自熄性优越,符合美国UL1581中的 VW-1垂直燃烧测试标准要求。该电缆材料的阻燃性能优越,但耐低温性能不够理想,同时材料经过交联后续的回收困难,造成环境问题。制备具有良好的低温性能、耐磨性能的低烟无卤阻燃电缆料,并且后期还能回收具有重要意义。
发明内容
发明目的:本发明主要针对现有普通电缆料技术中存在的不足,本发明的目的在于提供一种耐低温、耐磨、低烟无卤阻燃电缆料,同时具有良好的可回收性能。产品能够达到UL94标准中的V0等级,烟密度低于150(无焰, 25kw),低于现有市场普通低烟无卤阻燃电缆料,同时兼具良好的耐磨性能、耐低温性能以及良好的综合力学性能。本发明的第二个目的在于提供一种分散性更好的电缆用复合材料的制备方法。
为了实现上述发明目的,本发明采用的技术方案为:一种电缆用复合材料,它是由以下重量份数组分组成:25~45份聚乙烯醋酸乙烯酯,5~20份聚乙烯,25~40份氢氧化铝,10~30份氢氧化镁,1~15份水滑石,0.2~0.8份抗氧剂,0.5~1.5份润滑剂,0.2~1份偶联剂,2~12份相容剂,0.5~2.5份耐磨剂。优选的,由以下重量份数组成:25~35份聚乙烯醋酸乙烯酯,10~15份聚乙烯, 30~35份氢氧化铝,15-25份氢氧化镁,1-10份水滑石,0.5份抗氧剂,1份润滑剂,0.5份偶联剂,0~10份相容剂,0~1.5份耐磨剂。
优选的,由以下重量份数组成:35份聚乙烯醋酸乙烯酯,12份聚乙烯, 33份氢氧化铝,20份氢氧化镁,1-8份水滑石,0.4份抗氧剂,1份润滑剂, 0.5份偶联剂,0~8份相容剂,0~1.5份耐磨剂。
所述的聚醋酸乙烯酯中VA的含量为>20%,优选VA含量为28,此VA 含量的EVA具有兼具良好的刚性和韧性,并且耐油污耐腐蚀性能也良好。
所述的乙烯为线性低密度聚乙烯,它具有较低的结晶度和较好的柔软性、断裂伸长率以及电绝缘性能,复合电缆材料的需求。
所述的水滑石为镁铝水滑石,层状结构,粉体为微米级尺寸,优选粒径分布为5~10μm,这种水滑石相比于其他粒径的水滑石具有更好的抑烟效果。
所述的相容剂为马来酸酐接枝三元乙丙橡胶,此相容剂不仅提高树脂材料和粉体之间的界面强度,从而改善复合材料的力学性能,同时作为弹性体的加入,能加强复合材料的耐低温性能,使得其制备的电缆线具有更加广泛的应用领域。
所述的抗氧剂选自季戊四醇、亚磷酸酯、受阻酚的一种或几种混合物。优选抗氧剂为四[β-(3,5-二叔丁基-4羟基苯基)丙酸]季戊四醇酯和三(2,4二叔丁基苯基)亚磷酸酯的混合物,加工过程中能保护材料免受热降价,同时在后续使用过程中也能降低材料的热降解。
所述的润滑剂选自石蜡、硅氧烷聚合物、脂肪酸酰胺、硬脂酸钙、硬脂酸锌、甲撑双硬脂酸酰胺、乙撑双硬脂酸酰胺中的一种或几种组合物。优选乙撑双硬脂酸酰胺,其具有良好的内外润滑作用,对于本复合材料的高填充系统具有很好的润滑效果。
所述的偶联剂为选自钛酸酯、硅烷偶联剂、油酸钠、硬脂酸钙中的一种或几种组合物,优选硅烷偶联剂。能有效的改善粉体和树脂之间的界面性能,并有利于粉体的分散,达到均匀的材料体系。
所述的耐磨剂为硅酮,它和其他组分之间具有良好的相容性,同时有部分能够赋予材料表面良好的耐磨性能。
为实现上述第二个目的,本发明采用的方案是:所述的电缆用复合材料的制备方法,包括干燥、挤出、造粒及包装工序;其特征在于,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时。接下来用台秤称量EVA、PE、相容剂放入高搅机,然后称取偶联剂,900rpm的转速,混合1分钟后混匀;再称取抗氧剂、润滑剂、水滑石放入高搅机中,900rpm 的转速,混合1分钟,混匀,并把混好的料倒入双螺杆挤出机的主喂料一。剩余的氢氧化镁和氢氧化铝在高搅机中,转速900rpm,混合2分钟后,主喂料斗一和主喂料二位均位于双螺杆挤出机的炮筒第一段的主喂料口上方,两个料斗的下料管道在主喂料口上方合到一个下料管,侧喂料料斗则位于双螺杆泡筒的第五段侧喂料口上方。进行双螺杆挤出造粒:主机转速200~ 210r/min,主喂料1频率4~6kg/h,主喂料二~4kg/h,侧喂料2~4kg/h,切粒速度 30~40Hz;挤塑工序的温度为:一区100℃,二区105℃,三区115℃,四区 120℃,五区125℃,六区130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
本发明的优点在于:
1.本发明使用合适粒径的镁铝水滑石,使得制备的复合材料受热燃烧时,水滑石组分的结构水和层板及其层间离子能够以水和二氧化碳的形式脱出,同时由于其片层结构,能增强燃烧时碳层的坚固和致密性,起到阻燃和抑烟作用。
2.本发明加入马来酸酐接枝三元乙丙橡胶能提高材料的耐寒性能,同时再加入耐磨剂,改善其耐磨性能,能让此复合材料制备的电缆线具有更加广泛的应用。
3.本发明在制备工艺上采用分开加料的方法,能有效的避免粉体和树脂粒料由于比重和粒径不同而导致的分层和粉体滞后现象,能让粉体分散更均匀,复合材料的延展性和断裂生产率更高。
具体实施方式
下面对本发明提供的具体实施方式做详细说明。
本发明中,所述的乙烯醋酸乙烯酯简称为EVA;所述的水滑石为阴离子型层状化合物,由于水滑石的存在,当制备的无卤阻燃EVA/PE复合材料的受热燃烧时,水滑石的结构水合层板羟基及层间离子以水和二氧化碳的形式脱出,同时由于其片层结构,能增强燃烧时碳层的坚固和致密性,起到提高阻燃和降低烟密度作用。所述的原材料“份”均指“重量份”。
以下实施例和对比例中,EVA树脂选用阿科玛的2803;LLDPE树脂选用中海壳牌的7042;水滑石选用山东万新威纳公司的104C,粒径为7μm;氢氧化镁为雅宝H5,氢氧化铝为中超AH~01DG,抗氧剂为四[β-(3,5-二叔丁基-4 羟基苯基)丙酸]季戊四醇酯和三(2,4二叔丁基苯基)亚磷酸酯的混合物,质量比四[β-(3,5-二叔丁基-4羟基苯基)丙酸]季戊四醇酯∶三(2,4二叔丁基苯基)亚磷酸酯=1∶1,为BASF的225,其他助剂均为市售。
对比例1本发明的一种电缆用复合材料及其制备,按以下组分及重量份制备:35份聚乙烯醋酸乙烯酯,12份聚乙烯,33份氢氧化铝,20份氢氧化镁,0.4份抗氧剂,1份润滑剂,0.5份偶联剂。
上述电缆料的制备方法,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时。接下来用台秤称量EVA、PE放入高搅机,然后称取偶联剂,900rpm的转速,混合1分钟后混匀;再称取抗氧剂、润滑剂放入高搅机中,900rpm的转速,混合1分钟,混匀,并把混好的料倒入双螺杆挤出机的主喂料一。剩余的氢氧化镁和氢氧化铝在高搅机中,转速900rpm,混合2分钟后,将一半从主喂料料斗二中喂入,另一半从侧喂料中料斗喂入。进行双螺杆挤出造粒:主机转速200~210r/min,主喂料一频率4.89kg/h,主喂料2.65kg/h,侧喂料2.65kg/h,切粒速度35Hz;挤塑工序的温度为:一区 100℃,二区105℃,三区115℃,四区120℃,五区125℃,六区130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
实施例1本发明的一种电缆用复合材料及其制备方法,按以下组分及重量份制备:35份聚乙烯醋酸乙烯酯,12份聚乙烯,33份氢氧化铝,20份氢氧化镁,1份水滑石,0.4份抗氧剂,1份润滑剂,0.5份偶联剂。
上述电缆料的制备方法,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时。接下来用台秤称量EVA、PE放入高搅机,然后称取偶联剂,900rpm的转速,混合1分钟后混匀;再称取抗氧剂、润滑剂、水滑石放入高搅机中,900rpm的转速,混合1分钟,混匀,并把混好的料倒入双螺杆挤出机的主喂料一。剩余的氢氧化镁和氢氧化铝在高搅机中,转速900rpm,混合2分钟后,将一半从主喂料料斗二中喂入,另一半从侧喂料中料斗喂入。进行双螺杆挤出造粒:主机转速200~210r/min,主喂料一频率 4.99kg/h,主喂料2.65kg/h,侧喂料2.65kg/h,切粒速度35Hz;挤塑工序的温度为:一区100℃,二区105℃,三区115℃,四区120℃,五区125℃,六区 130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
实施例2本发明的一种电缆用复合材料及其制备方法,按以下组分及重量份制备:35份聚乙烯醋酸乙烯酯,12份聚乙烯,33份氢氧化铝,20份氢氧化镁,3份水滑石,0.4份抗氧剂,1份润滑剂,0.5份偶联剂。
上述电缆料的制备方法,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时。接下来用台秤称量EVA、PE放入高搅机,然后称取偶联剂,900rpm的转速,混合1分钟后混匀;再称取抗氧剂、润滑剂、水滑石放入高搅机中,900rpm的转速,混合1分钟,混匀,并把混好的料倒入双螺杆挤出机的主喂料一。剩余的氢氧化镁和氢氧化铝在高搅机中,转速900rpm,混合2分钟后,将一半从主喂料料斗二中喂入,另一半从侧喂料中料斗喂入。进行双螺杆挤出造粒:主机转速200~210r/min,主喂料一频率 5.19kg/h,主喂料2.65kg/h,侧喂料2.65kg/h,切粒速度35Hz;挤塑工序的温度为:一区100℃,二区105℃,三区115℃,四区120℃,五区125℃,六区 130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
实施例3本发明的一种电缆用复合材料及其制备方法,按以下组分及重量份制备:35份聚乙烯醋酸乙烯酯,12份聚乙烯,33份氢氧化铝,20份氢氧化镁,5份水滑石,0.4份抗氧剂,1份润滑剂,0.5份偶联剂。
上述电缆料的制备方法,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时。接下来用台秤称量EVA、PE放入高搅机,然后称取偶联剂,900rpm的转速,混合1分钟后混匀;再称取抗氧剂、润滑剂、水滑石放入高搅机中,900rpm的转速,混合1分钟,混匀,并把混好的料倒入双螺杆挤出机的主喂料一。剩余的氢氧化镁和氢氧化铝在高搅机中,转速900rpm,混合2分钟后,将一半从主喂料料斗二中喂入,另一半从侧喂料中料斗喂入。进行双螺杆挤出造粒:主机转速200~210r/min,主喂料一频率 5.39kg/h,主喂料2.65kg/h,侧喂料2.65kg/h,切粒速度35Hz;挤塑工序的温度为:一区100℃,二区105℃,三区115℃,四区120℃,五区125℃,六区 130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
实施例4本发明的一种电缆用复合材料及其制备方法,按以下组分及重量份制备:35份聚乙烯醋酸乙烯酯,12份聚乙烯,33份氢氧化铝,20份氢氧化镁,8份水滑石,0.4份抗氧剂,1份润滑剂,0.5份偶联剂。
上述电缆料的制备方法,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时。接下来用台秤称量EVA、PE放入高搅机,然后称取偶联剂,900rpm的转速,混合1分钟后混匀;再称取抗氧剂、润滑剂、水滑石放入高搅机中,900rpm的转速,混合1分钟,混匀,并把混好的料倒入双螺杆挤出机的主喂料一。剩余的氢氧化镁和氢氧化铝在高搅机中,转速900rpm,混合2分钟后,将一半从主喂料料斗二中喂入,另一半从侧喂料中料斗喂入。进行双螺杆挤出造粒:主机转速200~210r/min,主喂料一频率 5.69kg/h,主喂料2.65kg/h,侧喂料2.65kg/h,切粒速度35Hz;挤塑工序的温度为:一区100℃,二区105℃,三区115℃,四区120℃,五区125℃,六区 130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
实施例5本发明的一种电缆用复合材料及其制备方法,按以下组分及重量份制备:35份聚乙烯醋酸乙烯酯,12份聚乙烯,33份氢氧化铝,20份氢氧化镁,5份水滑石,0.4份抗氧剂,1份润滑剂,0.5份偶联剂,耐磨剂1.5 份。
上述电缆料的制备方法,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时。接下来用台秤称量EVA、PE放入高搅机,然后称取偶联剂,900rpm的转速,混合1分钟后混匀;再称取抗氧剂、润滑剂、水滑石、耐磨剂放入高搅机中,900rpm的转速,混合1分钟,混匀,并把混好的料倒入双螺杆挤出机的主喂料一。剩余的氢氧化镁和氢氧化铝在高搅机中,转速900rpm,混合2分钟后,将一半从主喂料料斗二中喂入,另一半从侧喂料中料斗喂入。进行双螺杆挤出造粒:主机转速200~210r/min,主喂料一频率5.84kg/h,主喂料2.65kg/h,侧喂料2.65kg/h,切粒速度35Hz;挤塑工序的温度为:一区100℃,二区105℃,三区115℃,四区120℃,五区125℃,六区130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
实施例6本发明的一种电缆用复合材料及其制备方法,按以下组分及重量份制备:35份聚乙烯醋酸乙烯酯,12份聚乙烯,33份氢氧化铝,20份氢氧化镁,5份水滑石,0.4份抗氧剂,1份润滑剂,0.5份偶联剂,耐磨剂1.5 份,相容剂8份。
上述电缆料的制备方法,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时。接下来用台秤称量EVA、PE放入高搅机,然后称取偶联剂,900rpm的转速,混合1分钟后混匀;再称取抗氧剂、润滑剂、水滑石、耐磨剂放入高搅机中,900rpm的转速,混合1分钟,混匀,并把混好的料倒入双螺杆挤出机的主喂料一。剩余的氢氧化镁和氢氧化铝在高搅机中,转速900rpm,混合2分钟后,将一半从主喂料料斗二中喂入,另一半从侧喂料中料斗喂入。进行双螺杆挤出造粒:主机转速200~210r/min,主喂料一频率6.14kg/h,主喂料2.65kg/h,侧喂料2.65kg/h,切粒速度35Hz;挤塑工序的温度为:一区100℃,二区105℃,三区115℃,四区120℃,五区125℃,六区130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
实施例7本发明的一种电缆用复合材料及其制备方法,按以下组分及重量份制备:35份聚乙烯醋酸乙烯酯,12份聚乙烯,33份氢氧化铝,20份氢氧化镁,5份水滑石,0.4份抗氧剂,1份润滑剂,0.5份偶联剂,相容剂8份。上述电缆料的制备方法,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时。接下来用台秤称量EVA、PE放入高搅机,然后称取偶联剂,900rpm的转速,混合1分钟后混匀;再称取抗氧剂、润滑剂、水滑石、耐磨剂放入高搅机中,900rpm的转速,混合1分钟,混匀,并把混好的料倒入双螺杆挤出机的主喂料一。剩余的氢氧化镁和氢氧化铝在高搅机中,转速900rpm,混合2分钟后,将一半从主喂料料斗二中喂入,另一半从侧喂料中料斗喂入。进行双螺杆挤出造粒:主机转速200~210r/min,主喂料一频率5.99kg/h,主喂料2.65kg/h,侧喂料2.65kg/h,切粒速度35Hz;挤塑工序的温度为:一区100℃,二区105℃,三区115℃,四区120℃,五区125℃,六区130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
采用常规的测试方法,任选产品1-7中的一个对比产品进行性能测试,所获得的具体数据如下表1所示。
测试方法都按照国标GB/T 32129-2015要求来进行测试的。
表1测试结果
综上所述,本发明的一种电缆用复合材料的有焰和无焰烟密度均有明显的降低,最低能达到有焰烟密度43,无焰烟密度146,完全满足电缆线的需求。材料的耐磨性能和耐低温性能也有明星的改善,阻燃性能在加入水滑石和硅酮时能形成致密坚硬的碳层,从而解决材料燃烧滴落问题,提高氧指数和阻燃等级。
以上所述仅是本发明的优先实施方式,应当指出,对于本技术领域的普通技术人员,在不脱离本发明的前提下,还可以做出若干改进和补充,这些改进和补充也应视为本发明的保护范围。
Claims (10)
1.一种电缆用复合材料,其特征在于,它是由以下重量份数组分组成:25~45份聚乙烯醋酸乙烯酯,5~20份聚乙烯,25~40份氢氧化铝,10~30份氢氧化镁,1~15份水滑石,0.2~0.8份抗氧剂,0.5~1.5份润滑剂,0.2~1份偶联剂,2~12份相容剂,0.5~2.5份耐磨剂。
2.根据权利要求1所述的一种电缆用复合材料,其特征在于,由以下重量份数组成:25~35份聚乙烯醋酸乙烯酯,10~15份聚乙烯,30~35份氢氧化铝,15-25份氢氧化镁,1-10份水滑石,0.5份抗氧剂,1份润滑剂,0.5份偶联剂,0~10份相容剂,0~1.5份耐磨剂。
3.根据权利要求2所述的一种电缆用复合材料,其特征在于,由以下重量份数组成:35份聚乙烯醋酸乙烯酯,12份聚乙烯,33份氢氧化铝,20份氢氧化镁,1-8份水滑石,0.4份抗氧剂,1份润滑剂,0.5份偶联剂,0~8份相容剂,0~1.5份耐磨剂。
4.根据权利要求2所述的一种电缆用复合材料,其特征在于,所述的聚醋酸乙烯酯中VA的含量为>20%,优选VA含量为28。
5.根据权利要求2所述的一种电缆用复合材料,其特征在于,所述的乙烯为线性低密度聚乙烯;所述的相容剂为马来酸酐接枝三元乙丙橡胶;所述的耐磨剂为硅烷偶联剂。
6.根据权利要求2所述的一种电缆用复合材料,其特征在于,所述的水滑石为镁铝水滑石,层状结构,粉体为微米级尺寸,优选2~15μm。
7.根据权利要求2所述的一种电缆用复合材料,其特征在于,所述的抗氧剂选自季戊四醇、亚磷酸酯、受阻酚的一种或几种混合物;优选抗氧剂为四[β-(3,5-二叔丁基-4羟基苯基)丙酸]季戊四醇酯和三(2,4二叔丁基苯基)亚磷酸酯的混合物。
8.根据权利要求2所述的一种电缆用复合材料,其特征在于,所述的润滑剂选自石蜡、硅氧烷聚合物、脂肪酸酰胺、硬脂酸钙、硬脂酸锌、甲撑双硬脂酸酰胺、乙撑双硬脂酸酰胺中的一种或几种组合物。
9.根据权利要求2所述的一种电缆用复合材料,其特征在于,所述的偶联剂为选自钛酸酯、硅烷偶联剂、油酸钠、硬脂酸钙中的一种或几种组合物,优选硅烷偶联剂。
10.权利要求1或2所述的电缆用复合材料的制备方法,包括干燥、挤出、造粒及包装工序;其特征在于,首先对原材料用鼓风干燥箱进行干燥处理,原材料干燥温度为90℃,2小时;接下来用台秤称量EVA、PE、相容剂放入高搅机,然后称取偶联剂,混匀;再称取抗氧剂、润滑剂、水滑石放入高搅机,混匀,并把混好的料倒入双螺杆挤出机的主喂料1;剩余的氢氧化镁和氢氧化铝的一半从主喂料料斗2中,另一半从侧喂料中料斗喂入;主喂料斗1和主喂料2位均位于双螺杆挤出机的机筒第一段的主喂料口上方,两个料斗的下料管道在主喂料口上方合到一个下料管,侧喂料料斗则位于双螺杆泡筒的第五段侧喂料口上方。进行双螺杆挤出造粒:主机转速200~210r/min,主喂料一频率4~6kg/h,主喂料2~4kg/h,侧喂料2~4kg/h,切粒速度30~40Hz;挤塑工序的温度为:一区100℃,二区105℃,三区115℃,四区120℃,五区125℃,六区130℃,七区135℃,八区140℃,九区145℃,十区150℃,十一区150℃,机头145℃。
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