CN116631675A - Mobile abrasion-resistant and drag-resistant shielded cable with large cross section and flame resistance - Google Patents
Mobile abrasion-resistant and drag-resistant shielded cable with large cross section and flame resistance Download PDFInfo
- Publication number
- CN116631675A CN116631675A CN202310711580.4A CN202310711580A CN116631675A CN 116631675 A CN116631675 A CN 116631675A CN 202310711580 A CN202310711580 A CN 202310711580A CN 116631675 A CN116631675 A CN 116631675A
- Authority
- CN
- China
- Prior art keywords
- neck flask
- resistant
- modified
- retardant
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005299 abrasion Methods 0.000 title claims abstract description 26
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000003063 flame retardant Substances 0.000 claims abstract description 78
- 229960000892 attapulgite Drugs 0.000 claims abstract description 55
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 55
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 41
- 239000010410 layer Substances 0.000 claims abstract description 28
- 238000003756 stirring Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000008213 purified water Substances 0.000 claims abstract description 19
- 239000011241 protective layer Substances 0.000 claims abstract description 15
- 238000002360 preparation method Methods 0.000 claims abstract description 11
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 87
- 238000006243 chemical reaction Methods 0.000 claims description 45
- 239000002131 composite material Substances 0.000 claims description 42
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 30
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 28
- 150000001336 alkenes Chemical class 0.000 claims description 28
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 24
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 23
- 239000000945 filler Substances 0.000 claims description 20
- CCCMONHAUSKTEQ-UHFFFAOYSA-N octadec-1-ene Chemical compound CCCCCCCCCCCCCCCCC=C CCCMONHAUSKTEQ-UHFFFAOYSA-N 0.000 claims description 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 239000003431 cross linking reagent Substances 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000010949 copper Substances 0.000 claims description 14
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims description 14
- 239000011787 zinc oxide Substances 0.000 claims description 14
- 239000004718 silane crosslinked polyethylene Substances 0.000 claims description 13
- 238000004321 preservation Methods 0.000 claims description 12
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- 238000007792 addition Methods 0.000 claims description 9
- AZQGFVRDZTUHBU-UHFFFAOYSA-N isocyanic acid;triethoxy(propyl)silane Chemical compound N=C=O.CCC[Si](OCC)(OCC)OCC AZQGFVRDZTUHBU-UHFFFAOYSA-N 0.000 claims description 9
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 8
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 claims description 8
- 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 7
- 239000003999 initiator Substances 0.000 claims description 7
- MYRTYDVEIRVNKP-UHFFFAOYSA-N 1,2-Divinylbenzene Chemical compound C=CC1=CC=CC=C1C=C MYRTYDVEIRVNKP-UHFFFAOYSA-N 0.000 claims description 6
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 claims description 6
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 6
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 6
- 239000002270 dispersing agent Substances 0.000 claims description 6
- 239000003112 inhibitor Substances 0.000 claims description 6
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Chemical compound [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 claims description 6
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 238000010907 mechanical stirring Methods 0.000 claims description 5
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 4
- 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 3
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 claims description 3
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 3
- GXBCWRMJQPLZDU-UHFFFAOYSA-N 2-methyl-2-propan-2-ylperoxypropane Chemical compound CC(C)OOC(C)(C)C GXBCWRMJQPLZDU-UHFFFAOYSA-N 0.000 claims description 3
- DBCAQXHNJOFNGC-UHFFFAOYSA-N 4-bromo-1,1,1-trifluorobutane Chemical compound FC(F)(F)CCCBr DBCAQXHNJOFNGC-UHFFFAOYSA-N 0.000 claims description 3
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 3
- AGXUVMPSUKZYDT-UHFFFAOYSA-L barium(2+);octadecanoate Chemical compound [Ba+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O AGXUVMPSUKZYDT-UHFFFAOYSA-L 0.000 claims description 3
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 3
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 3
- 235000013539 calcium stearate Nutrition 0.000 claims description 3
- 239000008116 calcium stearate Substances 0.000 claims description 3
- STVZJERGLQHEKB-UHFFFAOYSA-N ethylene glycol dimethacrylate Substances CC(=C)C(=O)OCCOC(=O)C(C)=C STVZJERGLQHEKB-UHFFFAOYSA-N 0.000 claims description 3
- 235000019359 magnesium stearate Nutrition 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000012805 post-processing Methods 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims description 3
- JXSRRBVHLUJJFC-UHFFFAOYSA-N 7-amino-2-methylsulfanyl-[1,2,4]triazolo[1,5-a]pyrimidine-6-carbonitrile Chemical compound N1=CC(C#N)=C(N)N2N=C(SC)N=C21 JXSRRBVHLUJJFC-UHFFFAOYSA-N 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000003179 granulation Effects 0.000 claims description 2
- 238000005469 granulation Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 238000009954 braiding Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 33
- 239000012065 filter cake Substances 0.000 description 28
- 238000005303 weighing Methods 0.000 description 21
- 238000000967 suction filtration Methods 0.000 description 12
- 238000009413 insulation Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 9
- 230000007935 neutral effect Effects 0.000 description 8
- 238000005406 washing Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 238000001291 vacuum drying Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229920000098 polyolefin Polymers 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- -1 polysiloxane Polymers 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000002508 compound effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 125000005456 glyceride group Chemical group 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 description 1
- 229940074404 sodium succinate Drugs 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- 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
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- 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
- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L2023/40—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds changing molecular weight
- C08L2023/44—Coupling; Molecular weight increase
-
- 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
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General 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)
Abstract
The invention discloses a large-section flame-retardant movable abrasion-resistant and drag-resistant shielded cable, and belongs to the technical field of cable processing. The invention is used for solving the technical problems that the flame retardant property, the tensile resistance and the wear resistance of the cable in the prior art are to be further improved, and relates to a large-section flame-retardant mobile wear-resistant and drag-resistant shielded cable which comprises a plurality of cable cores, a shielding layer and an insulating protective layer, wherein the shielding layer is coated outside the cable cores, the insulating protective layer is coated outside the shielding layer, and the insulating protective layer is prepared from an insulating cable material; the preparation method of the insulated cable material comprises the following steps: pretreating attapulgite, preparing pretreated attapulgite, adding the pretreated attapulgite, ethanol and purified water into a three-neck flask, and stirring at room temperature for 30-50min. The invention not only effectively improves the flame retardant and flame retardant performance of the cable, but also improves the stretch resistance and wear resistance of the cable.
Description
Technical Field
The invention relates to the technical field of cable processing, in particular to a large-section flame-retardant movable abrasion-resistant and drag-resistant shielded cable.
Background
Cables are conductors that transfer power or information from one location to another, typically in a rope-like configuration of twisted wires of several or groups of wires (at least two in each group), each group being insulated from each other and often twisted around a center, and the entire outer face being covered with a highly insulating coating, having the characteristics of being internally energized and externally insulated. Is widely applied to the fields of power systems, information transmission systems and the like.
In order to improve the high temperature resistance and flame retardant performance of the cable in the prior art, a flame retardant is usually added into the cable material, but the cable is easy to have serious flame retardation in the combustion process, the flame retardant performance of the cable is poor, the cable is required to provide strong power support in the operation process of large-scale mobile equipment such as mines, harbors and the like, the service condition of the cable is severe, the working environment is complex, the cable is required to be dragged or wound frequently in the use process, the cable is subjected to large tensile force, the cable core is easy to be stretched and damaged in the use process, or the cable is worn out, so that the insulation layer arranged outside the cable is damaged, and the service life of the cable is required to be further improved.
In view of the technical drawbacks of this aspect, a solution is now proposed.
Disclosure of Invention
The invention aims to provide a large-section flame-retardant movable abrasion-resistant and drag-resistant shielded cable, which is used for solving the technical problems that the flame retardant property, the tensile property and the abrasion resistance of the cable in the prior art are to be further improved.
The aim of the invention can be achieved by the following technical scheme:
the large-section flame-retardant movable wear-resistant and drag-resistant shielded cable comprises a plurality of cable cores, a shielding layer and an insulating protective layer, wherein the shielding layer is coated outside the cable cores, the insulating protective layer is coated outside the shielding layer, and the insulating protective layer is prepared from an insulating cable material;
the preparation method of the insulated cable material comprises the following steps:
s1, preprocessing attapulgite, namely adding the preprocessed attapulgite, ethanol and purified water into a three-neck flask, stirring for 30-50min at room temperature, then raising the temperature of the three-neck flask to 50-60 ℃, adding KH-570 into the three-neck flask, carrying out heat preservation reaction for 3-5h, and carrying out post-processing to obtain modified attapulgite;
the synthetic reaction principle of the modified attapulgite is as follows:
s2, adding acrylic acid, acrylamide, 1-octadecene, modified attapulgite and toluene into a three-neck flask protected by nitrogen, stirring for 30-50min at room temperature, adding an initiator into the three-neck flask, raising the temperature of the three-neck flask to 80-90 ℃, reacting for 8-10h, and performing post treatment to obtain modified olefin;
the synthetic reaction principle of the modified olefin is as follows:
s3, adding the modified olefin, toluene and a polymerization inhibitor into a three-neck flask protected by nitrogen, uniformly stirring, raising the temperature of the three-neck flask to 60-70 ℃, adding the modified composite flame retardant into the three-neck flask in batches, separating two adjacent batches for 30-50min, and carrying out heat preservation reaction for 2-3h after the addition is completed, so as to obtain the modified filler;
s4, uniformly mixing the silane crosslinked polyethylene, the modified filler, the dispersing agent, the crosslinking agent and the auxiliary crosslinking agent, adding the mixture into a double-screw extruder, and carrying out melt extrusion granulation to obtain the insulated cable material.
Further, the cable core comprises a plurality of strands of conductive copper wires and an insulating sheath wrapping the outer parts of the strands of conductive copper wires, the plurality of strands of conductive copper wires are mutually wound in a spiral mode, the shielding layer is formed by weaving tinned copper wires, and the thickness of the insulating protective layer is 8-10mm.
Further, the pretreatment operation of the attapulgite in the step S1 includes: adding the attapulgite and 4-6M hydrochloric acid into a beaker according to a weight ratio of 1:9, stirring for 20-24h at room temperature, and performing post-treatment to obtain the pretreated attapulgite. The post-processing operation includes: after stirring, standing, skimming supernatant, centrifuging the bottom solid to obtain a filter cake, washing the filter cake to be neutral by using purified water, and then transferring the filter cake into a drying oven with the temperature of 100-110 ℃ for drying to constant weight to obtain the pretreated attapulgite.
Further, the weight ratio of the pretreated attapulgite, ethanol, purified water and KH-570 in the step S1 is 2:10:1:2, and the post-treatment operation comprises: after the reaction is finished, the temperature of the three-neck flask is reduced to room temperature, suction filtration is carried out, and filter cakes are transferred to blast drying in drying at 60-70 ℃ to constant weight after being washed by ethanol, so that the modified attapulgite is obtained.
Further, in the step S2, the weight ratio of acrylic acid, acrylamide, 1-octadecene, modified attapulgite, toluene and an initiator is 1:3:6:9:30:0.02, the initiator is one of azobisisobutyronitrile and dibenzoyl peroxide, and the post-treatment operation includes: after the reaction is finished, the temperature of the three-neck flask is kept at 80-90 ℃, and the solvent is distilled off under reduced pressure to obtain the modified olefin.
Further, the preparation method of the modified composite flame retardant comprises the following steps:
a1, adding melamine cyanurate, nano zinc oxide, ethanol, purified water and a surfactant into a three-neck flask, performing ultrasonic dispersion for 30-50min, transferring the three-neck flask to an iron stand with mechanical stirring, raising the temperature of the three-neck flask to 50-60 ℃, adding ammonia water into the three-neck flask, adjusting the pH value of a system to be 9-10, then slowly adding tetraethoxysilane into the three-neck flask, reacting for 4-6h, and performing post-treatment to obtain a composite flame retardant;
a2, adding the composite flame retardant, toluene and triethylamine into a three-neck flask protected by nitrogen, stirring for 20-30min at room temperature, raising the temperature of the three-neck flask to 65-75 ℃, dropwise adding isocyanate propyl triethoxysilane into the three-neck flask by using a constant pressure dropping funnel, and carrying out heat preservation reaction for 3-5h after the dropwise adding is finished, so as to obtain the modified composite flame retardant.
Further, in the step A1, the weight ratio of melamine cyanurate, nano zinc oxide, ethanol, purified water, surfactant and tetraethoxysilane is 3:2:15:2:0.06:3, and the post-treatment operation comprises: after the reaction is finished, the temperature of the three-neck flask is reduced to room temperature, suction filtration is carried out, the filter cake is leached to be neutral by ethanol, suction drying is carried out, the filter cake is transferred into a drying oven with the temperature of 70-80 ℃ for vacuum drying to constant weight, and the microspherical composite flame retardant is obtained.
Further, in the step A2, the weight ratio of the composite flame retardant to the toluene to the triethylamine to the isocyanate propyltriethoxysilane is 4:12:1:2, and the post-treatment operation comprises: after the reaction is finished, the temperature of the three-neck flask is reduced to room temperature, suction filtration is carried out, and a filter cake is washed by toluene and then is transferred into a drying oven with the temperature of 65-75 ℃ for vacuum drying to constant weight, thus obtaining the modified composite flame retardant.
Further, in the step S3, the weight ratio of the modified olefin, toluene, polymerization inhibitor and modified composite flame retardant is 1:8:0.1:1.5, the polymerization inhibitor is one or more of isoprene, butadiene and styrene, and the post-treatment operation includes: after the reaction was completed, the reaction solution was transferred to a rotary evaporator, the water bath temperature was set at 80 to 90℃and toluene was distilled off under reduced pressure to obtain a powdery modified filler.
Further, in the step S4, the weight ratio of silane crosslinked polyethylene, modified filler, dispersant, crosslinking agent and auxiliary crosslinking agent is 100:30:1.5:0.5:0.3, the dispersant is one or more of barium stearate, calcium stearate, copper stearate and magnesium stearate, the crosslinking agent is one or more of dicumyl peroxide, di (tert-butyl isopropyl peroxide) benzene and 2, 5-dimethyl-2, 5-bis (tert-butyl peroxy) hexane, the auxiliary crosslinking agent is one or more of triallyl isocyanurate, ethylene glycol dimethacrylate and divinylbenzene, the temperature of a plurality of temperature sections from a feeding end to a discharging end of a barrel of the twin-screw extruder is 180 ℃, 195 ℃ and 195 ℃ in sequence, the screw speed is 19r/min, the samples are cut into wet insulating cable materials at the speed of 200r/min by a dicing cutter after being extruded by the twin-screw extruder, the wet insulating cable materials are transferred to a dry blowing box with the temperature of 100-110 ℃ to a constant cable weight, and the insulating cable materials are obtained.
The invention has the following beneficial effects:
1. according to the invention, in the preparation process of the insulating protective layer of the large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable, crystal bundles on the surface of the attapulgite are eroded by carrying out acid water infiltration treatment on the attapulgite, so that active hydroxyl on the surface of the attapulgite is exposed, the reactivity of the pretreated attapulgite is improved, in the reaction process of the pretreated attapulgite and KH-570 in an ethanol water environment, KH-570 can be smoothly grafted onto the pretreated attapulgite, the grafting rate of KH-570 is improved, rich olefin double bonds are formed on the surface of the pretreated attapulgite, the modified attapulgite can be polymerized with acrylic acid, acrylamide and 1-octadecene under the action of a free radical initiator to generate modified olefins, the modified olefins and silane crosslinked polyethylene are olefin polymers, the modified olefins can be uniformly dispersed in the silane crosslinked polyethylene, the dispersibility of the modified olefins in the silane crosslinked polyethylene is improved, and the modified olefins are synchronously dispersed in the silane crosslinked polyethylene along with the modified olefins, so that the wear resistance of the insulating cable material is improved; the modified polyolefin and the silane crosslinked polyethylene are crosslinked under the action of the crosslinking agent and the auxiliary crosslinking agent, so that the insulating cable material with a net structure is produced, and the mechanical property of the cable is improved.
2. In the preparation process of the insulating protective layer of the large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable, after melamine cyanurate and nano zinc oxide are uniformly dispersed in ethanol water solution, the melamine cyanurate and the nano zinc oxide react with tetraethoxysilane in an alkaline environment, a layer of polysiloxane is coated outside the melamine cyanurate and the nano zinc oxide, so that the melamine cyanurate and the nano zinc oxide are combined together to prepare a composite flame retardant, the composite flame retardant reacts with isocyanate propyltriethoxysilane in the environment of triethylamine and ethanol, the isocyanate propyltriethoxysilane is grafted outside the composite flame retardant, isocyanate groups are grafted outside the composite flame retardant to form a modified composite flame retardant, the modified composite flame retardant is added into a modified olefin system in batches, and the isocyanate groups on the modified composite flame retardant react with hydroxyl groups, amino groups and other groups on modified olefin to graft the modified olefin outside the modified composite flame retardant to prepare the modified filler; zinc oxide is nonflammable and is matched with melamine cyanurate, so that the limiting oxygen index of the insulated cable material is effectively improved, and the generation of molten drops during combustion is reduced; in the combustion process, melamine cyanurate is combusted, decomposed and absorbed to absorb heat and generate an oligomer, the oligomer is self-condensed, the formation of a closed carbon layer in a molten drop can be promoted, surrounding air is isolated, the oligomer reacts with attapulgite to generate a heat-resistant ceramic-like material containing silicon, aluminum and magnesium oxide, so that the carbon layer is thickened and compact, oxygen is isolated, and the flame retardant effect of the cable is improved.
3. According to the large-section flame-retardant movable wear-resistant drag-resistant shielded cable, in the preparation process, the cable core is wound by the multi-strand conductive copper wires, after the multi-strand cable core is wound, the shielding layer woven by the tinned copper wires is coated outside the multi-strand cable core, so that the electromagnetic shielding of the cable to the outside is improved, partial discharge between the contact part of the insulating surface and the sheath is avoided when the cable is bent, the use safety of the cable is improved, and the anti-drag and wear-resistant performances of the cable can be effectively improved due to the insulating protective layer made of insulating cable materials arranged outside the shielding layer.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a cut-off structure of a large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable of the invention.
In the figure: 100. a cable core; 101. an electrically conductive copper wire; 102. an insulating sheath; 200. a shielding layer; 300. and an insulating protective layer.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, the large-section flame-retardant mobile abrasion-resistant drag-resistant shielded cable provided by the embodiment comprises a plurality of cable cores 100, a shielding layer 200 and an insulation protection layer 300, wherein each cable core 100 comprises a plurality of conductive copper wires 101 and an insulation sheath 102 wrapping the outer parts of the conductive copper wires 101, the conductive copper wires 101 are mutually wound in a spiral shape, the shielding layer 200 is woven by tinned copper wires and wraps the outer parts of the cable cores 100, the insulation protection layer 300 is wrapped on the outer parts of the shielding layer 200, the insulation protection layer 300 is prepared from an insulation cable material, and the thickness of the insulation protection layer 300 is 8-10mm.
Example 2
Referring to fig. 1, the embodiment provides a preparation method of an insulated cable material for a large-section flame-retardant mobile abrasion-resistant drag-resistant shielding cable insulation protection layer, which comprises the following steps:
s1, preparing modified attapulgite
Weighing the following components in parts by weight: adding 100g of attapulgite and 900g of 4M hydrochloric acid into a beaker, stirring for 20-24h at room temperature, standing after stirring is completed, skimming supernatant, centrifuging bottom solids to obtain a filter cake, washing the filter cake to be neutral by using purified water, and then transferring the filter cake into a drying oven with the temperature of 100 ℃ for drying to constant weight to obtain pretreated attapulgite;
weighing the following components in parts by weight: adding 100g of pretreated attapulgite, 500g of ethanol and 50g of purified water into a three-neck flask, stirring for 30min at room temperature, then raising the temperature of the three-neck flask to 50 ℃, adding KH-570100g into the three-neck flask, carrying out heat preservation reaction for 3h, reducing the temperature of the three-neck flask to room temperature after the reaction is completed, carrying out suction filtration, washing a filter cake with ethanol, and then transferring to drying at 60 ℃ for blast drying to constant weight, thus obtaining the modified attapulgite.
S2, preparing modified olefin
Weighing the following components in parts by weight: 50g of acrylic acid, 150g of acrylamide, 300g of 1-octadecene, 450g of modified attapulgite and 1500g of toluene are added into a three-neck flask protected by nitrogen, stirred at room temperature for 30min, then 1g of azodiisobutyronitrile is added into the three-neck flask, the temperature of the three-neck flask is increased to 80 ℃ for 8h of reaction, after the reaction is finished, the temperature of the three-neck flask is kept at 80 ℃, and the solvent is distilled off under reduced pressure, so that modified olefin is obtained.
S3, preparing modified composite flame retardant
Weighing the following components in parts by weight: 150g of melamine cyanurate, 100g of nano zinc oxide, 750g of ethanol, 100g of purified water and 3g of dioctyl sodium succinate are added into a three-neck flask, ultrasonic dispersion is carried out for 30min, the three-neck flask is transferred onto an iron stand with mechanical stirring and stirred, the temperature of the three-neck flask is increased to 50 ℃, ammonia water is added into the three-neck flask, the pH value of a system is regulated to be 9, then 150g of tetraethoxysilane is slowly added into the three-neck flask, the reaction is carried out for 4h, after the reaction is completed, the temperature of the three-neck flask is reduced to room temperature, suction filtration is carried out, a filter cake is leached to be neutral by ethanol, suction drying is carried out, and the filter cake is transferred into a drying box with the temperature of 70 ℃ and is dried to constant weight in vacuum, thus obtaining the microspherical composite flame retardant;
weighing the following components in parts by weight: 200g of composite flame retardant, 600g of toluene and 50g of triethylamine are added into a three-neck flask protected by nitrogen, stirring is carried out for 20min at room temperature, the temperature of the three-neck flask is increased to 65 ℃, 100g of isocyanate propyl triethoxysilane is dropwise added into the three-neck flask by using a constant pressure dropping funnel, the reaction is carried out for 3h after the dropwise addition, the temperature of the three-neck flask is reduced to room temperature after the reaction is completed, suction filtration is carried out, a filter cake is washed by toluene and then is transferred into a drying box with the temperature of 65 ℃ for vacuum drying to constant weight, and the modified composite flame retardant is obtained.
S4, preparing modified filler
Weighing the following components in parts by weight: adding 100g of modified olefin, 800g of toluene and 10g of isoprene into a three-neck flask protected by nitrogen, stirring uniformly, raising the temperature of the three-neck flask to 60 ℃, adding 150g of modified composite flame retardant into the three-neck flask in equal 5 batches, separating the two adjacent batches for 30min, after the addition is finished, carrying out heat preservation reaction for 2h, transferring the reaction solution into a rotary evaporator, setting the water bath temperature to 80 ℃, and evaporating toluene under reduced pressure to obtain powdery modified filler.
S5, preparing insulating cable material
Weighing the following components in parts by weight: 500g of silane crosslinked polyethylene, 150g of modified filler, 7.5g of barium stearate, 1.5g of dicumyl peroxide and 0.3g of triallyl isocyanurate are uniformly mixed and then added into a double-screw extruder, the temperatures of a plurality of temperature sections from a feeding end to a discharging end of a charging barrel of the double-screw extruder are sequentially 180 ℃, 195 ℃ and the screw rotating speed of 19r/min, a sample after being extruded by the double-screw extruder is subjected to water cooling molding, and then cut into an insulated cable material wet product at the rotating speed of 200r/min by a granulator, and the insulated cable material wet product is transferred into a drying box with the temperature of 100 ℃ to be subjected to blast drying to constant weight, so that the insulated cable material is obtained.
Example 3
Referring to fig. 1, the embodiment provides a preparation method of an insulated cable material for a large-section flame-retardant mobile abrasion-resistant drag-resistant shielding cable insulation protection layer, which comprises the following steps:
s1, preparing modified attapulgite
Weighing the following components in parts by weight: adding 100g of attapulgite and 900g of 5M hydrochloric acid into a beaker, stirring at room temperature for 22 hours, standing after stirring is completed, skimming supernatant, centrifuging bottom solids to obtain a filter cake, washing the filter cake to be neutral by using purified water, and then transferring the filter cake into a drying oven with the temperature of 105 ℃ for drying to constant weight to obtain pretreated attapulgite;
weighing the following components in parts by weight: adding 100g of pretreated attapulgite, 500g of ethanol and 50g of purified water into a three-neck flask, stirring for 40min at room temperature, then raising the temperature of the three-neck flask to 55 ℃, adding KH-570100g into the three-neck flask, carrying out heat preservation reaction for 4h, reducing the temperature of the three-neck flask to room temperature after the reaction is completed, carrying out suction filtration, washing a filter cake with ethanol, and then transferring to drying at 65 ℃ for blast drying to constant weight, thereby obtaining the modified attapulgite.
S2, preparing modified olefin
Weighing the following components in parts by weight: 50g of acrylic acid, 150g of acrylamide, 300g of 1-octadecene, 450g of modified attapulgite and 1500g of toluene are added into a three-neck flask protected by nitrogen, stirred at room temperature for 40min, 1g of dibenzoyl peroxide is added into the three-neck flask, the temperature of the three-neck flask is increased to 85 ℃ for 9h of reaction, the temperature of the three-neck flask is kept at 85 ℃ after the reaction is finished, and the solvent is distilled off under reduced pressure to obtain modified olefin.
S3, preparing modified composite flame retardant
Weighing the following components in parts by weight: 150g of melamine cyanurate, 100g of nano zinc oxide, 750g of ethanol, 100g of purified water and 3g of sodium dodecyl benzene sulfonate are added into a three-neck flask, ultrasonic dispersion is carried out for 40min, the three-neck flask is transferred onto an iron stand with mechanical stirring and is stirred, the temperature of the three-neck flask is increased to 55 ℃, ammonia water is added into the three-neck flask, the pH value of a system is regulated to be 9.5, then 150g of tetraethoxysilane is slowly added into the three-neck flask for 5h of reaction, after the reaction is completed, the temperature of the three-neck flask is reduced to room temperature, suction filtration is carried out, a filter cake is leached to be neutral by ethanol, suction drying is carried out, and the filter cake is transferred into a drying box with the temperature of 75 ℃ and is dried to constant weight in vacuum, thus obtaining the microspherical composite flame retardant;
weighing the following components in parts by weight: 200g of composite flame retardant, 600g of toluene and 50g of triethylamine are added into a three-neck flask protected by nitrogen, stirring is carried out for 25min at room temperature, the temperature of the three-neck flask is increased to 70 ℃, 100g of isocyanate propyl triethoxysilane is dropwise added into the three-neck flask by using a constant pressure dropping funnel, the reaction is carried out for 4h after the dropwise addition, the temperature of the three-neck flask is reduced to room temperature after the reaction is completed, suction filtration is carried out, a filter cake is washed by toluene and then is transferred into a drying box with the temperature of 70 ℃ for vacuum drying to constant weight, and the modified composite flame retardant is obtained.
S4, preparing modified filler
Weighing the following components in parts by weight: adding 100g of modified olefin, 800g of toluene and 10g of butadiene into a three-neck flask protected by nitrogen, stirring uniformly, raising the temperature of the three-neck flask to 65 ℃, adding 150g of modified composite flame retardant into the three-neck flask in equal 5 batches, keeping the interval between two adjacent batches for 40min, after the addition is finished, carrying out heat preservation reaction for 2.5h, transferring the reaction solution into a rotary evaporator, setting the water bath temperature to 85 ℃, and evaporating toluene under reduced pressure to obtain powdery modified filler.
S5, preparing insulating cable material
Weighing the following components in parts by weight: 500g of silane crosslinked polyethylene, 150g of modified filler, 7.5g of calcium stearate, 1.5g of di (tert-butyl isopropyl peroxide) benzene and 0.3g of ethylene glycol dimethacrylate are uniformly mixed and then added into a double-screw extruder, the temperature of a plurality of temperature sections from a feeding end to a discharging end of a charging barrel of the double-screw extruder is 180 ℃, 195 ℃ and 195 ℃ in sequence, the screw rotating speed is 19r/min, after the double-screw extruder extrudes a sample, the sample is subjected to water cooling molding, and then cut into an insulated cable material wet product at the rotating speed of 200r/min by a granulator, and the insulated cable material wet product is transferred into a drying oven with the temperature of 105 ℃ to be subjected to blast drying to constant weight, so as to obtain the insulated cable material.
Example 4
Referring to fig. 1, the embodiment provides a preparation method of an insulated cable material for a large-section flame-retardant mobile abrasion-resistant drag-resistant shielding cable insulation protection layer, which comprises the following steps:
s1, preparing modified attapulgite
Weighing the following components in parts by weight: adding 100g of attapulgite and 900g of 6M hydrochloric acid into a beaker, stirring for 24 hours at room temperature, standing after stirring is completed, skimming supernatant, centrifuging bottom solids to obtain a filter cake, washing the filter cake to be neutral by using purified water, and then transferring the filter cake into a drying oven with the temperature of 110 ℃ for drying to constant weight to obtain pretreated attapulgite;
weighing the following components in parts by weight: adding 100g of pretreated attapulgite, 500g of ethanol and 50g of purified water into a three-neck flask, stirring for 50min at room temperature, then raising the temperature of the three-neck flask to 60 ℃, adding KH-570100g into the three-neck flask, carrying out heat preservation reaction for 5h, reducing the temperature of the three-neck flask to room temperature after the reaction is completed, carrying out suction filtration, washing a filter cake with ethanol, and then transferring to drying at 70 ℃ in a blast mode to dry to constant weight, thereby obtaining the modified attapulgite.
S2, preparing modified olefin
Weighing the following components in parts by weight: 50g of acrylic acid, 150g of acrylamide, 300g of 1-octadecene, 450g of modified attapulgite and 1500g of toluene are added into a three-neck flask protected by nitrogen, stirred at room temperature for 50min, then 1g of azodiisobutyronitrile is added into the three-neck flask, the temperature of the three-neck flask is increased to 90 ℃ for reaction for 10h, after the reaction is finished, the temperature of the three-neck flask is kept at 90 ℃, and the solvent is distilled off under reduced pressure, so as to obtain modified olefin.
S3, preparing modified composite flame retardant
Weighing the following components in parts by weight: 150g of melamine cyanurate, 100g of nano zinc oxide, 750g of ethanol, 100g of purified water and 3g of fatty glyceride fatty acid sorbitan are added into a three-neck flask, ultrasonic dispersion is carried out for 50min, the three-neck flask is transferred onto an iron stand with mechanical stirring for stirring, the temperature of the three-neck flask is increased to 60 ℃, ammonia water is added into the three-neck flask, the pH value of a system is regulated to be 10, then 150g of tetraethoxysilane is slowly added into the three-neck flask for 6h of reaction, after the reaction is completed, the temperature of the three-neck flask is reduced to room temperature, suction filtration is carried out, a filter cake is leached to be neutral by ethanol, suction drying is carried out, and the filter cake is transferred into a drying box with the temperature of 80 ℃ for vacuum drying to constant weight, thus obtaining the microspherical composite flame retardant;
weighing the following components in parts by weight: 200g of composite flame retardant, 600g of toluene and 50g of triethylamine are added into a three-neck flask protected by nitrogen, stirring is carried out for 30min at room temperature, the temperature of the three-neck flask is increased to 75 ℃, 100g of isocyanate propyl triethoxysilane is dropwise added into the three-neck flask by using a constant pressure dropping funnel, the reaction is carried out for 5h after the dropwise addition, the temperature of the three-neck flask is reduced to room temperature after the reaction is completed, suction filtration is carried out, a filter cake is washed by toluene and then is transferred into a drying box with the temperature of 75 ℃ for vacuum drying to constant weight, and the modified composite flame retardant is obtained.
S4, preparing modified filler
Weighing the following components in parts by weight: adding 100g of modified olefin, 800g of toluene and 10g of styrene into a three-neck flask protected by nitrogen, stirring uniformly, raising the temperature of the three-neck flask to 70 ℃, adding 150g of modified composite flame retardant into the three-neck flask in equal 5 batches, keeping the interval between two adjacent batches for 50min, after the addition is finished, carrying out heat preservation reaction for 3h, transferring the reaction solution into a rotary evaporator, setting the water bath temperature to 90 ℃, and carrying out reduced pressure distillation to remove the toluene to obtain the powdery modified filler.
S5, preparing insulating cable material
Weighing the following components in parts by weight: 500g of silane crosslinked polyethylene, 150g of modified filler, 7.5g of magnesium stearate, 1.5g of 2, 5-dimethyl-2, 5-bis (tert-butylperoxy) hexane and 0.3g of divinylbenzene are added into a double-screw extruder after being uniformly mixed, the temperature of a plurality of temperature sections from a feeding end to a discharging end of a charging barrel of the double-screw extruder is 180 ℃, 195 ℃ and 195 ℃ in sequence, the screw rotating speed is 19r/min, after the double-screw extruder is extruded, a sample is subjected to water cooling molding, and then cut into an insulated cable material wet product at the rotating speed of 200r/min by a granulator, and the insulated cable material wet product is transferred into a drying oven with the temperature of 110 ℃ to be subjected to blast drying to constant weight, so that the insulated cable material is obtained.
Comparative example 1
The present comparative example differs from example 4 in that step S4 is eliminated and the modified filler in step S5 is replaced by a modified composite flame retardant in equal amount.
Comparative example 2
The comparative example differs from comparative example 1 in that no zinc oxide was added in step S4 and 35g of attapulgite was added in step S5.
Comparative example 3
The difference between this comparative example and example 4 is that step S4 is eliminated and the modified filler in step S5 is replaced by an equivalent amount of a mixture of the composite flame retardant and the high-efficiency olefin in a weight ratio of 3:2.
Performance test:
the insulating cable materials prepared in examples 2 to 4 and comparative examples 1 to 3 were tested for tensile properties, flame retardant properties and abrasion resistance, wherein both the tensile properties and the flame retardant properties were tested with reference to the standard GB/T32129-2015 "halogen-free low smoke flame retardant cable material for wire and cable", and the abrasion resistance was tested with reference to the standard GB/T17737.324-2018 "coaxial communication cable 1-324: mechanical test method cable abrasion resistance test "test the loss mass of a test piece after 500 cycles, and the specific test results are shown in the following table:
data analysis:
by analyzing the data of examples 2-4, the insulated cable material prepared by the invention not only effectively improves the tensile strength and the elongation at break, but also improves the flame retardance and the wear resistance;
according to the data analysis of comparative examples 2-4 and examples 1-3, the melamine cyanurate and the nano zinc oxide are mutually prepared to prepare the composite flame retardant, so that the limiting oxygen index of the insulated cable material is effectively improved, the modified olefin is prepared by modifying the attapulgite and then is coated outside the modified flame retardant, the flame retardant property of an insulated power circuit and the dispersibility of the attapulgite in silane polyolefin are effectively improved, the silane crosslinked polyethylene and the modified filler are promoted to crosslink by using the crosslinking agent in a high-temperature environment, the tensile property and the wear resistance of the insulated cable material are improved, the compound effect is generated between the attapulgite and the modified flame retardant in the flame retardant process, and the flame retardant property of the insulated cable material is further improved.
The foregoing is merely illustrative and explanatory of the invention, as it is well within the scope of the invention as claimed, as it relates to various modifications, additions and substitutions for those skilled in the art, without departing from the inventive concept and without departing from the scope of the invention as defined in the accompanying claims.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. The mobile abrasion-resistant and traction-resistant shielded cable with the large cross section and flame resistance comprises a plurality of cable cores (100), a shielding layer (200) and an insulating protective layer (300), and is characterized in that the shielding layer (200) is coated on the outer parts of the cable cores (100), the insulating protective layer (300) is coated on the outer parts of the shielding layer (200), and the insulating protective layer (300) is prepared from an insulating cable material;
the preparation method of the insulated cable material comprises the following steps:
s1, preprocessing attapulgite, namely adding the preprocessed attapulgite, ethanol and purified water into a three-neck flask, stirring for 30-50min at room temperature, then raising the temperature of the three-neck flask to 50-60 ℃, adding KH-570 into the three-neck flask, carrying out heat preservation reaction for 3-5h, and carrying out post-processing to obtain modified attapulgite;
s2, adding acrylic acid, acrylamide, 1-octadecene, modified attapulgite and toluene into a three-neck flask protected by nitrogen, stirring for 30-50min at room temperature, adding an initiator into the three-neck flask, raising the temperature of the three-neck flask to 80-90 ℃, reacting for 8-10h, and performing post treatment to obtain modified olefin;
s3, adding the modified olefin, toluene and a polymerization inhibitor into a three-neck flask protected by nitrogen, uniformly stirring, raising the temperature of the three-neck flask to 60-70 ℃, adding the modified composite flame retardant into the three-neck flask in batches, separating two adjacent batches for 30-50min, and carrying out heat preservation reaction for 2-3h after the addition is completed, so as to obtain the modified filler;
s4, uniformly mixing the silane crosslinked polyethylene, the modified filler, the dispersing agent, the crosslinking agent and the auxiliary crosslinking agent, adding the mixture into a double-screw extruder, and carrying out melt extrusion granulation to obtain the insulated cable material.
2. The large-section flame-retardant mobile abrasion-resistant drag-resistant shielded cable according to claim 1, wherein the cable core (100) comprises a plurality of conductive copper wires (101) and an insulating sheath (102) covering the outer parts of the plurality of conductive copper wires (101), the plurality of conductive copper wires (101) are mutually wound in a spiral shape, the shielding layer (200) is formed by braiding tin-plated copper wires, and the thickness of the insulating protective layer (300) is 8-10mm.
3. The large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable according to claim 1, wherein the step S1 of preprocessing the attapulgite comprises: adding the attapulgite and 4-6M hydrochloric acid into a beaker according to a weight ratio of 1:9, stirring for 20-24h at room temperature, and performing post-treatment to obtain the pretreated attapulgite.
4. The large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable according to claim 1, wherein the weight ratio of the pretreated attapulgite, ethanol, purified water and KH-570 in step S1 is 2:10:1:2.
5. The large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable according to claim 1, wherein in the step S2, the weight ratio of acrylic acid, acrylamide, 1-octadecene, modified attapulgite, toluene and an initiator is 1:3:6:9:30:0.02, and the initiator is one of azobisisobutyronitrile and dibenzoyl peroxide.
6. The large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable according to claim 1, wherein the preparation method of the modified composite flame retardant comprises the following steps:
a1, adding melamine cyanurate, nano zinc oxide, ethanol, purified water and a surfactant into a three-neck flask, performing ultrasonic dispersion for 30-50min, transferring the three-neck flask to an iron stand with mechanical stirring, raising the temperature of the three-neck flask to 50-60 ℃, adding ammonia water into the three-neck flask, adjusting the pH value of a system to be 9-10, then slowly adding tetraethoxysilane into the three-neck flask, reacting for 4-6h, and performing post-treatment to obtain a composite flame retardant;
a2, adding the composite flame retardant, toluene and triethylamine into a three-neck flask protected by nitrogen, stirring for 20-30min at room temperature, raising the temperature of the three-neck flask to 65-75 ℃, dropwise adding isocyanate propyl triethoxysilane into the three-neck flask by using a constant pressure dropping funnel, and carrying out heat preservation reaction for 3-5h after the dropwise adding is finished, so as to obtain the modified composite flame retardant.
7. The large section flame retardant mobile abrasion resistant and drag resistant shielded cable of claim 6, wherein the weight ratio of melamine cyanurate, nano zinc oxide, ethanol, purified water, surfactant and ethyl orthosilicate in step A1 is 3:2:15:2:0.06:3.
8. The large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable according to claim 6, wherein the weight ratio of the composite flame retardant, toluene, triethylamine and isocyanate propyl triethoxysilane in the step A2 is 4:12:1:2.
9. The large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable according to claim 1, wherein in the step S3, the weight ratio of the modified olefin, toluene, polymerization inhibitor and modified composite flame retardant is 1:8:0.1:1.5, and the polymerization inhibitor is one or more of isoprene, butadiene and styrene.
10. The large-section flame-retardant mobile abrasion-resistant and drag-resistant shielded cable according to claim 1, wherein in the step S4, the weight ratio of silane crosslinked polyethylene, modified filler, dispersant, crosslinking agent and auxiliary crosslinking agent is 100:30:1.5:0.5:0.3, the dispersant is one or more of barium stearate, calcium stearate, copper stearate and magnesium stearate, the crosslinking agent is one or more of dicumyl peroxide, di (tert-butyl isopropyl peroxide) benzene, 2, 5-dimethyl-2, 5-bis (tert-butyl peroxy) hexane, and the auxiliary crosslinking agent is one or more of triallyl isocyanurate, ethylene glycol dimethacrylate and divinylbenzene.
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