CN105968491A - Cable insulation material containing flame retardant compound agent LDHS/SBA-15 and application of cable insulation material - Google Patents
Cable insulation material containing flame retardant compound agent LDHS/SBA-15 and application of cable insulation material Download PDFInfo
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- CN105968491A CN105968491A CN201610337002.9A CN201610337002A CN105968491A CN 105968491 A CN105968491 A CN 105968491A CN 201610337002 A CN201610337002 A CN 201610337002A CN 105968491 A CN105968491 A CN 105968491A
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- sba
- insulation material
- cable insulation
- ldhs
- fire
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 55
- 239000012774 insulation material Substances 0.000 title claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 title claims description 29
- -1 flame retardant compound Chemical class 0.000 title description 10
- 239000000463 material Substances 0.000 claims abstract description 41
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 29
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 29
- 150000004291 polyenes Chemical class 0.000 claims abstract description 20
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004793 Polystyrene Substances 0.000 claims description 33
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 30
- 239000000243 solution Substances 0.000 claims description 20
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 13
- 229920002223 polystyrene Polymers 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 11
- 229910000410 antimony oxide Inorganic materials 0.000 claims description 10
- 229910052588 hydroxylapatite Inorganic materials 0.000 claims description 10
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 claims description 10
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical compound [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 claims description 10
- 239000003963 antioxidant agent Substances 0.000 claims description 9
- 230000003078 antioxidant effect Effects 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 6
- 229920001568 phenolic resin Polymers 0.000 claims description 6
- 239000005011 phenolic resin Substances 0.000 claims description 6
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 5
- 230000008025 crystallization Effects 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 239000002808 molecular sieve Substances 0.000 claims description 5
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 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 description 2
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 2
- 229960001545 hydrotalcite Drugs 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 19
- 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 17
- 229920000642 polymer Polymers 0.000 description 18
- 229910052599 brucite Inorganic materials 0.000 description 9
- 238000002156 mixing Methods 0.000 description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000009413 insulation Methods 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
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- 230000000052 comparative effect Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 238000001027 hydrothermal synthesis Methods 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 229910021536 Zeolite Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000003679 aging effect Effects 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000004679 hydroxides Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000009740 moulding (composite fabrication) Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000010457 zeolite Substances 0.000 description 2
- HCILJBJJZALOAL-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)-n'-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyl]propanehydrazide Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 HCILJBJJZALOAL-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 241000907903 Shorea Species 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000006701 autoxidation reaction Methods 0.000 description 1
- 230000000680 avirulence Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 239000011365 complex material Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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- 230000005685 electric field effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000012757 flame retardant agent Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000003642 hunger Nutrition 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
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- 230000009545 invasion Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010534 mechanism of action Effects 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
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- 238000013508 migration Methods 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000037351 starvation Effects 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000003878 thermal aging Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
- 229920000428 triblock copolymer Polymers 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
- C08L23/06—Polyethene
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to a flame retardant cable insulation material containing LDHS/SBA-15. The cable insulation material comprises a polyene material of LDHS/SBA-15, particularly LDHS/SBA-15/LDPE/PS. The heat resistance and strength of the insulation material can be increased, the ageing time of the insulation material can be shortened, the insulation material can not be degraded for a long time at high temperature, a better flame retardant effect can be kept, and the index of LOI (loss on ignition) can be greatly increased.
Description
Technical field
The present invention relates to a kind of Fire retardation electric cable insulation material comprising LDHS/SBA-15, described cable insulation material includes the polyene material of LDHS/SBA-15, i.e. LDHS/SBA-15/LDPE/PS, thermostability and the intensity of insulant can be improved, reduce the ageing time of insulant, can keep the most non-degradable under high temperature action, and preferable flame retardant effect can also be kept, LOI loss on ignition index is greatly improved.
Background technology
Insulant conventional in cable has oil-paper, polrvinyl chloride, polyethylene, crosslinked polyethylene, rubber etc..On electrotechnics, by specific insulation more than 109The material that the material of Ω cm is constituted is referred to as insulant, is namely used for making device at the material that electric current electrically can be stoped to pass through.Crosslinked polyethylene has excellent dielectric properties and mechanical performance, and oneself is widely used in high pressure and supertension plastic insulating power cable.Along with supertension, the development of extra-high voltage direct-current power transmission and transformation system, the insulation ageing problem in running is increasingly severe, and oneself becomes the major obstacle that insulated cable develops to supertension.When the working field strength of insulating polymer reach breakdown field strength ten/for the moment, the Electric Power Equipment Insulation worked long hours can cause poplar bundles, reduce cable service life.The high voltage power cable insulant being made up of Low Density Polyethylene, is affected the most aging by various aging actions in During Process of Long-term Operation, causes the dielectric properties of material and the decline of mechanical performance.Classification according to aging action can be divided into voltage ageing, heat ageing, mechanical aging and Electrochemical Ageing.Wherein heat ageing is the main inducing of PE cable insulation infringement, and different thermal aging time and condition can cause the difference of polyethylene inner molecular structure, and then affect its space charge characteristic.
Research shows, under DC electric field effect, easily forms space charge, and space charge can make Electric Field Distribution be distorted in polymer insulation, and aggravation polymer insulation is aging, the aging decline that result in material electric property of material.Space Charge in Polymer is mainly ionized the heteropolarity electricity of generation under electric field action by the same polarity space charge entering sunken carrier or transportable current-carrying of electrode injection and organic or inorganic impurity in insulator.In order to suppress the formation of space charge, need, to PE modified thus change trap energy therein and distribution, to change distribution of space charge, lower distortion probability, improve the dielectric properties of polymer, reduce polymer insulation aging, and do not affect the processing characteristics of polymer simultaneously.
Low Density Polyethylene is cable insulation material commonly used in the art, but owing to itself is containing chlorine, unsatisfactory for fire resistance.Fire resistance for insulant is improved at present, and adding suitable fire retardant is one of major way.
Summary of the invention
Research proves, space charge is to cause power cable electric field distortion, causes shelf depreciation, electric branch and the major reason of dielectric breakdown accident.The at present research to the space charge in polymer focuses primarily upon the generation of space charge in suppression medium and migrates characteristic, generally, space charge in insulant (such as polyethylene) is mainly made up of 2 parts: one be high field pretend with under enter sunken carrier or transportable carrier, referred to as like charges from the electrode injection contacted with medium；Another part is under relatively low field intensity effect, and the impurity in medium ionizes under electric field action and occurs to migrate and the space charge that formed, referred to as heterocharge.
Phosphorus and phosphorus-containing compound fire retardant are listed as three big flame-retardant systems with halogen system, inorganic system.The flame retardant effect of phosphorus series compound is preferable, because the Metaphosphoric acid generated during burning can be grouped to stable poly state, becomes the protective layer of burning point, can completely cut off and be fired contacting of thing and oxygen.The phosphoric acid and the poly-Metaphosphoric acid that generate are the most all strong acid, have the strongest dehydration property, it is possible to make polymer dehydration carbonization, and form charring layer at polymer surfaces, reach starvation and stop the purpose of burning.
When nitrogenous flame ratardant burns when breaking out of fire, it is heated and easily releases the non-flammable gases such as HCN, N2, NH3, NO2 and NO.The concentration of the imflammable gas produced when oxygen in these gas dilutions air and high polymer decomposes, nitrogenous flame ratardant catabolic process also absorbs a part of heat simultaneously, additionally nitrogen can also catch free radical, the chain reaction of suppression high polymer, reach to remove the effect of free radical, thus reach fire-retardant purpose.
Tripolycyanamide is as nitrogen component, have Halogen, low toxicity, low cigarette preferential, nitrogenous flame ratardant is preferable at the flame retardant effect of polyester plastics, especially be combined with phosphorus flame retardant, Intumscent Flame Retardant System can be formed, by the synergism of the two, the flame retardant effect of crosslinked polyolefin insulating material can be greatly improved.The application have employed tripolycyanamide and is applied in combination with phosphorated material APP, hydroxyapatite, and adjust the ratio of three, three is made to play synergism, form Intumscent Flame Retardant System, test shows, the optimal mass ratio of three's (tripolycyanamide: APP: hydroxyapatite) is 1:1:1.Flame retardant effect can be greatly improved.Applicant thinks that mainly containing phosphorus component is jointly to be acted on Phos form by organophosphor, on the basis of different phosphorus forms, in conjunction with nitrogenated flame retardant, structurally can increase swelling degree, and Phos can also occupy intermediate active position in Intumescent Retardant System, the performances such as fire-retardant, the intensity forming the rock-steady structures such as stable system, such as intercalation, link layer, polyhedron, beneficially polyolefin insulation material with organophosphor, organic nitrogen.
The aerial burning of macromolecular compound is the fiercest a kind of oxidation reaction, belongs to chain reaction course.Combustion process is bred the most active hydroxyl free radical, when hydroxyl free radical and macromolecular compound meet, generates Hydrocarbon free radical and water, in the presence of oxygen, Hydrocarbon radical decomposition, form again new hydroxyl free radical.So circulation, makes combustion reaction constantly continue.The mechanism of action of fire retardant is more complicated, comprises many factors, but mainly either physically or chemically stops burn cycle by employing.
Layered double hydroxides is called for short LDHs (Layered double
Hydroxides) it is an anionoid lamellar compound, also known as brucite (Hydrotalcites), there is acid and basic character, memory effect, the interchangeability of interlayer anion and microcellular structure.As fire retardant, the fire retardant mechanism of brucite is mainly manifested in the following aspects: 1, the interlayer of brucite contains C03 2 OneAnd H2O, can discharge H when being heated2O and CO2, not only dilute the concentration of fuel gas, reduce the temperature on compound system surface simultaneously, serve the effect that gas phase is fire-retardant.2, brucite has special layer structure, such an arrangement provides bigger surface area and more surface adsorption active center, when material combustion, the combustion-supporting and toxic and harmful produced in combustion process can be adsorbed, serve and eliminate smoke and the effect of dilution combustion-supporting gas.3, brucite can be decomposed into inorganic material MgO and A1 after being heated to uniform temperature2O3, these residues cover on the surface of polymer, will increase the stability of layer of charcoal, have simultaneously worked as the effect isolating oxygen with heat, have played condensed phase fire retardation；4. due to the anion of hydrotalcite layers, there is interchangeability, according to different demands to the ion with fire resistance can be added interlayer, thus strengthen the effect that brucite is fire-retardant.Although there being the scholar's research LDHS fire resistance for materials such as EVA, epoxy resin, PVC, but at present for the LDPE/PS of component polymer is not the most studied.Zeolite is as the fire retardant of insulant, but zeolite is rigid structure, and bridging oxygen key is relatively short, and lacks flexibility, there is certain defect.Mesoporous molecular sieve SBA-15
Owing to its duct is regular, specific surface area and aperture are relatively big and have good hydrothermal stability, owing to wherein containing Al2O3, SiO2, Na2O, covers silicon-series five-retardant, inorganic combustion inhibitor material precursor, if being utilized at polyene modifying process, it is the most material modified that preparation has high performance flame-retardant insulating material, and seldom has research in this respect at present.
nullPresent invention incorporates the satisfactory texture of LDHS，Excellent flame-retarding characteristic，Itself and molecular sieve SBA-15 are mixed to form fire-retardant built agent，Played effect of LDHS simultaneously，And the intensity of complex material can also be increased further，Compensate for the defect of flexible difference in molecular screen material，Form hard and soft complementation，Inorganic material is carried out skeletonizing or intercalation，Form spatial stability structure，Control the migration rate of space charge，Improve charge movement speed，Be conducive to capture or detrapping，Avoid the polymerization of electric charge，So that it is aging、Inflammable cable material usually produced problem such as grade，After built agent material is mixed with polyene material LDPE/PS，Could be formed with effect parcel，Protective layer is formed at polyene material surface，And the intensity of polyene material can also be increased，Reduce density，So that material is more light and soft，But still there is good mechanical strength and compressive property，And effective fire retardation can be played，LOI index is greatly improved.LOI=17.5+0.5CR (CR is neat coal amout).
Inorganic anti-flaming material, after being heated, decomposes dehydration, absorbs substantial amounts of heat, thus suppress the rising of polymer surfaces temperature, and meanwhile, product steam also has accumulation of heat and the effect of diluted polymer surface imflammable gas concentration.Form oxide after dehydration and stay burning surface, be possible to prevent the combustion heat to feed back on condensed phase, and the thermal degradation products of polymer can also be adsorbed by oxide, the generation of suppression cigarette.Traditional oxidation ladder (antimony oxide) needs to be combined with halogen just to have good fire resistance, present invention discover that due to the addition of fire-retardant built agent, it is not necessary to add containing halogen element, thus simplify technique, it is not necessary to add halogenated flame retardant；The average diameter of the oxidation ladder that the application uses is 20-70nm, preferably 30-45nm.
The application first passes through preparation NiAl-LDHS/SBA-15 composite flame-retardant agent, then mix with other components further after mixing with polyene main material Low Density Polyethylene, polystyrene, composite flame-proof agent material is conducive to contact with the direct of polyene, combine closely, form active surface and cover and space invasion and attack, occupy suitable flame retardant activity position, and add trap quantity, improve electric charge flowing, add average breakdown strength, be conducive to improving the service life of insulant.Therefore, the insulant of the application both can improve service life, ageing-resistant, impact resistance, and intensity is high, and can also keep preferable flame retardant effect, and LOI loss on ignition index is greatly improved.
The present invention relates to a kind of cable insulation material comprising fire-retardant built agent, described cable insulation material includes polyene material LDPE/PS 80-100 part, phenolic resin 50-60 part, white carbon 10-20 part, epoxy resin 30-40 part, antioxidant 5-8 part, tripolycyanamide 10-15 part, APP 10-15 part, hydroxyapatite 10-15 part and antimony oxide 10-20 part that fire-retardant built agent is modified, and the most fire-retardant built agent is mixed with mesoporous molecular sieve SBA-15 by brucite LDHS and obtains.
The average diameter of described antimony oxide is 20-70nm, preferably 30-45nm.
Described antioxidant master can effectively prevent the autoxidation of polymer, mainly uses antioxidant 1024, antioxidant 565, antioxidant 1010 etc., and is not limited to antioxidant material commonly used in the art.
Wherein, the mass ratio of LDHS:SBA is 2:1-5, preferably 2:3-5.Tripolycyanamide: APP: the mass ratio of hydroxyapatite is 1-3:1:1, preferably 1:1:1.
Preferably, fire-retardant built agent: low density polyethylene: the mass ratio of polystyrene PS is 10-20:80-100:50-80.
Described insulant is to prepare in accordance with the following steps:
(1) fire-retardant built agent LDHS/SBA-15 is first prepared:
SBA-15: with triblock copolymer P123 as template, tetraethyl orthosilicate TEOS are silicon source precursor, weigh 4.0g P123, add 100ml water and 20ml hydrochloric acid, stir 12-24 hour under 40 ° of C constant temperature, the colloidal sol obtained is moved into hydrothermal reaction kettle, 100-120 ° of C hydrothermal crystallizing 36-48h, cool down after reaction, filter, washing, be dried, then 500-600 ° of C roasting 6-8 hour, SBA-15 powder is obtained.
The fire-retardant built agent of NiAl-LDH/SBA-15 is prepared by coprecipitation.A certain amount of SBA-15 powder adds ultrasonic 30min in the mixed ammonium/alkali solutions that 100mL contains sodium hydroxide (0.5 M) and natrium carbonicum calcinatum (0.1 M).Above-mentioned mixed solution joins under room temperature is stirred vigorously in the saline solution that 50mL contains nickel nitrate (0.75 M) and aluminum nitrate (0.25 M) and obtains suspension.The sodium hydroxide solution of 0.2 M joins the pH value regulating solution in above-mentioned suspension to 10.5.The most this suspension solution after 60 ° of C crystallization 6 hours is cooled to room temperature, is washed with deionized three times and is centrifuged, and is dried 24h under 60 ° of C.Obtain NiAl-LDH/SBA-15 composite materials, standby.Wherein the mass ratio of LDHS:SBA-15 is 2:1-5, preferably 2:3-5.
(2) by above-mentioned fire-retardant built agent and low density polyethylene, polystyrene PS is dissolved in toluene, mixes, and temperature keeps 80-120 DEG C, stirs 2h, ultrasonic disperse 2h.Subsequently the mixed liquor of preparation is placed in desolventizing in baking oven, obtains polyene material modified (NiAl-LDH/SBA-15/LDPE/PS)；
The most fire-retardant built agent: Low Density Polyethylene: polystyrene=10-20:80-100:50-80.
(3) polyene material modified 80-100 part mixing phenolic resin 50-60 part, white carbon 10-20 part, epoxy resin 30-40 part, antioxidant 5-8 part, tripolycyanamide 5-10 part, APP 10-15 part, hydroxyapatite 10-15 part, antimony oxide 10-20 part and step (2) obtained, pour homogenizer into, the speed first using 800-1000 rev/min under room temperature stirs 30 minutes, then 30min is stirred at 60 DEG C with the speed of 3000-4000 rev/min, the batch mixing stirred is discharged, then melt, injection mo(u)lding, obtains described cable insulation material.
Composite cable insulant is the application in high pressure and supertension plastic insulating power cable, can be substantially reduced aging, improves high temperature resistant, the use intensity of cable insulation material and resistance to fire resistance.
The application have studied the fire-retardant and mechanical property of the LDPE/PS composite including compound flame retardant, by having limited oxygen index, vertical combustion and mechanical property tests to measure, understand LDHS/SBA-15/LDPE/PS composite material combination property excellent, stable performance, oxygen index (OI) height, good flame retardation effect, effect are persistently, cheap;By non-volatile, smog is little, avirulence, this composite flame-proof material have concurrently fire-retardant, press down cigarette and reduce the function of toxic gas, be that a kind of non-environmental-pollution fire proofing has prospects for commercial application.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further detailed explanation.
Embodiment
1
(1) fire-retardant built agent LDHS/SBA-15 is first prepared:
SBA-15: weigh 4.0g P123, adds 100ml water and 20ml hydrochloric acid, stirs 24 hours under 40 ° of C constant temperature, and the colloidal sol obtained is moved into hydrothermal reaction kettle, 100 ° of C hydrothermal crystallizing 36h, cool down after reaction, filter, washing, it is dried, then 500 ° of C roastings 8 hours, obtains SBA-15 powder.
Weigh a certain amount of SBA-15 powder and add ultrasonic 30min in the mixed ammonium/alkali solutions that 100mL contains sodium hydroxide (0.5 M) and natrium carbonicum calcinatum (0.1 M).Above-mentioned mixed solution joins under room temperature is stirred vigorously in the saline solution that 50mL contains nickel nitrate (0.75 M) and aluminum nitrate (0.25 M) and obtains suspension.The sodium hydroxide solution of 0.2 M joins the pH value regulating solution in above-mentioned suspension to 10.5.The most this suspension solution after 60 ° of C crystallization 6 hours is cooled to room temperature, is washed with deionized three times and is centrifuged, and is dried 24h under 60 ° of C.Obtain NiAl-LDH/SBA-15 composite materials, standby.Wherein the mass ratio of NiAl-LDHS:SBA-15 is 2:3.
(2) by above-mentioned fire-retardant built agent and low density polyethylene, polystyrene PS is dissolved in toluene, mixes, and temperature keeps 120 DEG C, stirs 2h, ultrasonic disperse 2h.Subsequently the mixed liquor of preparation is placed in desolventizing in baking oven, obtains polyene material modified (NiAl-LDH/SBA-15/LDPE/PS)；The most fire-retardant built agent: Low Density Polyethylene: polystyrene=15:100:60.
(3) the material modified 100 parts of mixing of polyene 50 parts of phenolic resin, white carbon 10 parts, epoxy resin 40 parts, 8 parts of antioxidant, tripolycyanamide 5 parts, APP 5 parts, hydroxyapatite 5 parts, antimony oxide 10 parts and step (2) obtained, pour homogenizer into, the speed first using 1000 revs/min under room temperature stirs 30 minutes, then 30min is stirred at 60 DEG C with the speed of 4000 revs/min, the batch mixing stirred is discharged, then melt, injection mo(u)lding, obtains described cable insulation material.
Embodiment
2
(1) fire-retardant built agent LDHS/SBA-15 is first prepared:
SBA-15: weigh 4.0g P123, adds 100ml water and 20ml hydrochloric acid, stirs 24 hours under 40 ° of C constant temperature, and the colloidal sol obtained is moved into hydrothermal reaction kettle, 100 ° of C hydrothermal crystallizing 36h, cool down after reaction, filter, washing, it is dried, then 600 ° of C roastings 6 hours, obtains SBA-15 powder.
Weigh a certain amount of SBA-15 powder and add ultrasonic 30min in the mixed ammonium/alkali solutions that 100mL contains sodium hydroxide (0.5 M) and natrium carbonicum calcinatum (0.1 M).Above-mentioned mixed solution joins under room temperature is stirred vigorously in the saline solution that 50mL contains nickel nitrate (0.75 M) and aluminum nitrate (0.25 M) and obtains suspension.The sodium hydroxide solution of 0.2 M joins the pH value regulating solution in above-mentioned suspension to 10.5.The most this suspension solution after 60 ° of C crystallization 6 hours is cooled to room temperature, is washed with deionized three times and is centrifuged, and is dried 24h under 60 ° of C.Obtain NiAl-LDH/SBA-15 composite materials, standby.Wherein the mass ratio of NiAl-LDHS:SBA-15 is 2:4.
(2) by above-mentioned fire-retardant built agent and low density polyethylene, polystyrene PS is dissolved in toluene, mixes, and temperature keeps 110 DEG C, stirs 2h, ultrasonic disperse 2h.Subsequently the mixed liquor of preparation is placed in desolventizing in baking oven, obtains polyene material modified (NiAl-LDH/SBA-15/LDPE/PS)；The most fire-retardant built agent: Low Density Polyethylene: polystyrene=20:100:80.
(3) the material modified 100 parts of mixing of polyene 60 parts of phenolic resin, white carbon 15 parts, epoxy resin 35 parts, 5 parts of antioxidant, tripolycyanamide 10 parts, APP 10 parts, hydroxyapatite 10 parts, antimony oxide 10 parts and step (2) obtained, pour homogenizer into, the speed first using 800 revs/min under room temperature stirs 30 minutes, then 30min is stirred at 60 DEG C with the speed of 3000 revs/min, the batch mixing stirred is discharged, then melt, injection mo(u)lding, obtains described cable insulation material.
Embodiment
3
(1) fire-retardant built agent LDHS/SBA-15 is first prepared:
SBA-15: weigh 40.g P123, add 100ml water and 20ml hydrochloric acid, stir 12-24 hour under 40 ° of C constant temperature, the colloidal sol obtained is moved into hydrothermal reaction kettle, 100-120 ° of C hydrothermal crystallizing 36-48h, cool down after reaction, filter, washing, be dried, then 500-600 ° of C roasting 6-8 hour, SBA-15 powder is obtained.
A certain amount of SBA-15 powder addition 100mL is contained ultrasonic 30min in the mixed ammonium/alkali solutions of sodium hydroxide (0.5 M) and natrium carbonicum calcinatum (0.1 M).Above-mentioned mixed solution joins under room temperature is stirred vigorously in the saline solution that 50mL contains nickel nitrate (0.75 M) and aluminum nitrate (0.25 M) and obtains suspension.The sodium hydroxide solution of 0.2 M joins the pH value regulating solution in above-mentioned suspension to 10.5.The most this suspension solution after 60 ° of C crystallization 6 hours is cooled to room temperature, is washed with deionized three times and is centrifuged, and is dried 24h under 60 ° of C.Obtain NiAl-LDH/SBA-15 composite materials, standby.Wherein the mass ratio of LDHS:SBA-15 is 2:5.
(2) by above-mentioned fire-retardant built agent and low density polyethylene, polystyrene PS is dissolved in toluene, mixes, and temperature keeps 100 DEG C, stirs 2h, ultrasonic disperse 2h.Subsequently the mixed liquor of preparation is placed in desolventizing in baking oven, obtains polyene material modified (NiAl-LDH/SBA-15/LDPE/PS)；The most fire-retardant built agent: Low Density Polyethylene: polystyrene=20:80:60.
(3) the material modified 90 parts of mixing of polyene 50 parts of phenolic resin, white carbon 10 parts, epoxy resin 40 parts, 6 parts of antioxidant, tripolycyanamide 10 parts, APP 10 parts, hydroxyapatite 10 parts, antimony oxide 15 parts and step (2) obtained, pour homogenizer into, the speed first using 900 revs/min under room temperature stirs 30 minutes, then 30min is stirred at 60 DEG C with the speed of 4000 revs/min, the batch mixing stirred is discharged, then melt, injection mo(u)lding, obtains described cable insulation material.
Comparative example
1
Only with brucite LDHS, not using molecular sieve, other experiment parameters are with embodiment 1.
Comparative example
2
It is added without brucite LDHS, only with other experiment parameters of molecular screen material with embodiment 1.
Comparative example
3
Being added without antimony oxide material, other experiment parameters are with embodiment 1.
Concrete detection
Detect the hot strength (σ t/MPa) of above-mentioned aging resistance cable insulation material, elongation at break (δ/ %), density, hardness, LOI index then above-mentioned aging resistance cable insulation material is all over the world carried out hot air aging through 250 DEG C × 30, then detect stretching strength retentivity (E1/ %) and elongation at break conservation rate (E2/ %), LOI index, concrete outcome is shown in Table 1.
Table 1 each Testing index of Electric insulation material
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 | |
| Density, g/cm3 | 1.011 | 1.031 | 1.124 | 1.256 | 1.31 | 1.347 |
| Hardness, ShoreA | 95 | 94 | 90 | 80 | 75 | 78 |
| Hot strength, MPa | 52 | 50 | 55 | 47 | 38 | 44 |
| Elongation at break % | 600 | 670 | 680 | 450 | 480 | 440 |
| LOI | 44.5 | 45.2 | 48.5 | 26.5 | 27.1 | 29.9 |
| 250 DEG C × 30 days, LOI | 38.3 | 39.4 | 38.8 | 18.6 | 19.9 | 19.7 |
| 250 DEG C × 30 days, E1/% | 97.0 | 97.0 | 97.2 | 77.5 | 74.6 | 75.6 |
| 250 DEG C × 30 days, E2/% | 90.4 | 89.8 | 88.4 | 67.9 | 66.8 | 68.7 |
The above results is had to can be seen that, through the polyene material LDPE/PS that LDHS/SBA-15 is modified, the most further with other component mixed-formings, advantageously reduce the density of insulant, improve thermostability and the intensity of insulant, reduce the ageing time of insulant, improve LOI index, there is good anti-flammability, long-time (250 DEG C × 30 days) under high temperature action can be kept non-degradable, and through long-time (250 DEG C × 30 days), still there is higher LOI index, fire resistance is preferable.
The above; it is only the detailed description of the invention of the present invention; but protection scope of the present invention is not limited thereto; any those of ordinary skill in the art are in the technical scope that disclosed herein; the change can expected without creative work or replacement, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims are limited.
Claims (7)
1. the cable insulation material comprising fire-retardant built agent LDHS/SBA-15, it is characterised in that described cable insulation material includes the polyene material LDPE/PS that fire-retardant built agent is modified
80-100 part, phenolic resin 50-60 part, white carbon 10-20 part, epoxy resin 30-40 part, antioxidant 5-8 part, tripolycyanamide 10-15 part, APP 10-15 part, hydroxyapatite 10-15 part and antimony oxide 10-25 part；The most fire-retardant built agent is to be mixed with, with mesoporous molecular sieve SBA-15, the LDHS/SBA-15 obtained by hydrotalcite material LDHS；The polyene material LDPE/PS of described fire-retardant built agent modification is by fire-retardant built agent LDHS/SBA-15 and low density polyethylene, polystyrene PS is dissolved in toluene, mix, temperature keeps 80-120 DEG C, stirring 2h, ultrasonic disperse 2h, is placed in desolventizing in baking oven by the mixed liquor of preparation subsequently, obtains modified polyolefin material (NiAl-LDH/SBA-15/LDPE/PS).
2. cable insulation material as claimed in claim 1, it is characterised in that the average diameter of described antimony oxide is 20-55nm, preferably 10-20 part.
3. such as the cable insulation material of claim 1 or 2, it is characterised in that the mass ratio of LDHS:SBA-15 is 2:1-5, preferably 2:3-5.
4. cable insulation material as claimed in claim 3, it is characterised in that tripolycyanamide: APP: the mass ratio of hydroxyapatite is 1-3:1:1, preferably 1:1:1.
5. cable insulation material as claimed in claim 1, it is characterised in that fire-retardant built agent: low density polyethylene: the mass ratio of polystyrene PS is 10-20:80-100:50-80.
6. cable insulation material as claimed in claim 1 or 2, it is characterized in that: weighing the preparation method of is: weigh a certain amount of SBA-15 powder and add ultrasonic 30min in the mixed ammonium/alkali solutions that 100mL contains sodium hydroxide (0.5 M) and natrium carbonicum calcinatum (0.1 M), above-mentioned mixed solution joins under room temperature is stirred vigorously in the saline solution that 50mL contains nickel nitrate (0.75 M) and aluminum nitrate (0.25 M) and obtains suspension, the sodium hydroxide solution of 0.2 M joins the pH value regulating solution in above-mentioned suspension to 10.5, then after 60 ° of C crystallization 6 hours, solution is cooled to room temperature, it is washed with deionized three times to be centrifuged, 24h it is dried under 60 ° of C, obtain NiAl-LDH/SBA-15 composite materials.
7. the application in high pressure or supertension plastic insulating power cable of the insulant as described in any one of claim 1-6.
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