CN117603518B - Fireproof flame-retardant cable - Google Patents
Fireproof flame-retardant cable Download PDFInfo
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- CN117603518B CN117603518B CN202311608192.XA CN202311608192A CN117603518B CN 117603518 B CN117603518 B CN 117603518B CN 202311608192 A CN202311608192 A CN 202311608192A CN 117603518 B CN117603518 B CN 117603518B
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- retardant
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- 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 title claims abstract description 91
- 239000003063 flame retardant Substances 0.000 title claims abstract description 67
- 239000010410 layer Substances 0.000 claims abstract description 61
- 239000004020 conductor Substances 0.000 claims abstract description 20
- 239000011347 resin Substances 0.000 claims abstract description 15
- 229920005989 resin Polymers 0.000 claims abstract description 15
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 14
- 239000011241 protective layer Substances 0.000 claims abstract description 14
- 239000000945 filler Substances 0.000 claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 9
- 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 abstract description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 7
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-dimethylformamide Substances CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 73
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- 238000002156 mixing Methods 0.000 claims description 40
- 238000003756 stirring Methods 0.000 claims description 39
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims description 34
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 30
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 30
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 30
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 28
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 20
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 20
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 20
- 239000012744 reinforcing agent Substances 0.000 claims description 20
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
- 229960003638 dopamine Drugs 0.000 claims description 17
- WGYKZJWCGVVSQN-UHFFFAOYSA-N propylamine Chemical group CCCN WGYKZJWCGVVSQN-UHFFFAOYSA-N 0.000 claims description 16
- 239000007864 aqueous solution Substances 0.000 claims description 14
- 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 12
- IONLSUKREREECO-UHFFFAOYSA-N 3-(2,2-diethoxyethylsilyl)propan-1-amine Chemical compound NCCC[SiH2]CC(OCC)OCC IONLSUKREREECO-UHFFFAOYSA-N 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 12
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 12
- UIGXGNUMMVHJKX-UHFFFAOYSA-N (4-formylphenoxy)boronic acid Chemical compound OB(O)OC1=CC=C(C=O)C=C1 UIGXGNUMMVHJKX-UHFFFAOYSA-N 0.000 claims description 11
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 11
- 230000001588 bifunctional effect Effects 0.000 claims description 11
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 10
- 229960000583 acetic acid Drugs 0.000 claims description 10
- MQRWBMAEBQOWAF-UHFFFAOYSA-N acetic acid;nickel Chemical compound [Ni].CC(O)=O.CC(O)=O MQRWBMAEBQOWAF-UHFFFAOYSA-N 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 239000012362 glacial acetic acid Substances 0.000 claims description 10
- 239000002808 molecular sieve Substances 0.000 claims description 10
- 230000007935 neutral effect Effects 0.000 claims description 10
- 229940078494 nickel acetate Drugs 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 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 10
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000008096 xylene Substances 0.000 claims description 10
- DWSWCPPGLRSPIT-UHFFFAOYSA-N benzo[c][2,1]benzoxaphosphinin-6-ium 6-oxide Chemical compound C1=CC=C2[P+](=O)OC3=CC=CC=C3C2=C1 DWSWCPPGLRSPIT-UHFFFAOYSA-N 0.000 claims description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000010445 mica Substances 0.000 claims description 5
- 229910052618 mica group Inorganic materials 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims 5
- GPAYUJZHTULNBE-UHFFFAOYSA-N diphenylphosphine Chemical compound C=1C=CC=CC=1PC1=CC=CC=C1 GPAYUJZHTULNBE-UHFFFAOYSA-N 0.000 claims 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052799 carbon Inorganic materials 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 229920000137 polyphosphoric acid Polymers 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- JPJGNZQDELRZGE-UHFFFAOYSA-N (phenyl-$l^{2}-phosphanyl)benzene Chemical compound C=1C=CC=CC=1[P]C1=CC=CC=C1 JPJGNZQDELRZGE-UHFFFAOYSA-N 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 7
- 239000003623 enhancer Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 125000003277 amino group Chemical group 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 125000003700 epoxy group Chemical group 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010003497 Asphyxia Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 125000003172 aldehyde group Chemical group 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
- C08G77/44—Block-or graft-polymers containing polysiloxane sequences containing only polysiloxane sequences
-
- 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
-
- 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
- H01B7/0009—Details relating to the conductive cores
-
- 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
- H01B7/1875—Multi-layer sheaths
-
- 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
- H01B7/1895—Internal space filling-up means
-
- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
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)
Abstract
The invention discloses a fireproof flame-retardant cable, which comprises a plurality of conductors sequentially arranged from inside to outside, wherein the surfaces of the conductors are coated with insulating layers, the outside of each insulating layer is provided with a wrapping layer, each insulating layer and each protective layer are prepared from flame-retardant resin, a filler is filled between each wrapping layer and each insulating layer, the outside of each wrapping lining layer is coated with the protective layer, and the flame-retardant resin comprises the following raw materials in parts by weight: 40-50 parts of EVA, 120-150 parts of PE, 6-8 parts of calcium carbonate, 4-6 parts of modified flame retardant and 1-3 parts of dicumyl peroxide, wherein the substances decomposed into polyphosphoric acid during combustion can be dehydrated into carbon, and then a carbon layer is formed to cover the surface of the cable, so that under the effect of isolating oxygen and heat, the element B can stabilize the carbon layer to inhibit the oxidation of the carbon layer, the dripping is prevented, the diffusion of combustible gas is effectively inhibited, the release of smoke is reduced, and the effect of quick flame retardance is achieved.
Description
Technical Field
The invention relates to the technical field of cable preparation, in particular to a fireproof flame-retardant cable.
Background
With the acceleration of the urban process, the urban scale and the urban population number are rapidly increased, and the rapid development of urban high-rise buildings and rail transit is promoted. Once the fire disaster occurs in the places, the personnel evacuation and rescue work is difficult due to the factors of dense personnel, complex building construction and the like, so that the facilities can be designed and built by adopting flame retardant materials as much as possible, and the potential safety hazard of the fire disaster is reduced. The electric wire and cable play an important role in the construction and use processes of high-rise buildings and rail transit infrastructures, the flame-retardant cable is the primary choice of the matched cable in the place, and early people achieve the aim of flame retardance by adding a certain amount of halogen-containing flame retardant or using polyvinyl chloride and antimony-based flame retardant in the manufacturing process of the electric wire and cable, but because the halogen flame retardant can generate a large amount of harmful gases in the combustion process, the harmful gases can cause secondary injury in the escaping and rescuing processes of people, and can cause suffocation death of people in severe cases, so that the generation of the harmful gases can be reduced, and the flame-retardant material without dripping becomes a research hot spot of the flame-retardant cable.
Disclosure of Invention
The invention aims to provide a fireproof flame-retardant cable, which solves the problem that the flame-retardant effect of the flame-retardant cable at the present stage is common.
The aim of the invention can be achieved by the following technical scheme:
The fireproof flame-retardant cable comprises a plurality of conductors which are sequentially arranged from inside to outside, wherein the surfaces of the conductors are coated with insulating layers, wrapping tape layers are arranged outside the insulating layers, fillers are filled between the wrapping tape layers and the insulating layers, and a protective layer is coated outside a wrapping liner layer;
the conductor is tinned copper wire, the wrapping band layer is mica tape, the filler is glass fiber yarn, the insulating layer and the protective layer are prepared from flame-retardant resin, and the flame-retardant resin comprises the following raw materials in parts by weight: 40-50 parts of EVA, 120-150 parts of PE, 6-8 parts of calcium carbonate, 4-6 parts of modified flame retardant and 1-3 parts of dicumyl peroxide.
Further, the modified flame retardant is prepared by the following steps:
Step A1: mixing KH560, KH570, tetramethyl ammonium hydroxide aqueous solution, isopropanol and xylene, stirring for 10-7 d at the rotation speed of 150-200r/min and the temperature of 80-85 ℃ for 10-12h, regulating the pH value to be neutral, and continuing stirring for 5-7d to obtain difunctional silsesquioxane, dissolving the difunctional silsesquioxane in DMF, adding diphenyl phosphorus and azodiisobutyronitrile, and reacting at the rotation speed of 200-300r/min and the temperature of 80-85 ℃ for 10-12h to obtain modified cage-type silsesquioxane;
And A2, uniformly mixing the modified cage-type silsesquioxane, the flame retardant reinforcing agent and the DMF, stirring and adding a sodium hydroxide solution to a pH value of 10-11 at a rotating speed of 150-200r/min and a temperature of 50-60 ℃ for reaction for 6-8 hours to obtain hyperbranched alcohol, uniformly mixing the hyperbranched alcohol, diphenoxyphosphoryl chloride, sodium hydroxide and the DMF, and reacting for 2-3 hours at a rotating speed of 300-500r/min and a temperature of 25-30 ℃ to obtain the modified flame retardant.
Further, the use ratio of KH560, KH570, aqueous solution of tetramethyl ammonium hydroxide, isopropanol and xylene in the step A1 is 50mmo l:20mmo l:20mL:20mL:10mL, the mass fraction of the aqueous solution of tetramethyl ammonium hydroxide is 2%, the molar ratio of double bond on the bifunctional silsesquioxane to diphenyl phosphorus is 1:1, and the use amount of azobisisobutyronitrile is 1-1.5% of the mass of diphenyl phosphorus.
Further, the mass ratio of the modified cage type silsesquioxane to the flame retardant reinforcing agent in the step A2 is 2:7, and the molar ratio of the hydroxyl group on the hyperbranched alcohol to the diphenoxyphosphoryl chloride to the sodium hydroxide is 1:1:1.1.
Further, the flame retardant reinforcing agent is prepared by the following steps:
Step B1: mixing (3-aminopropyl) diethoxyethyl silane, maleic anhydride and DMF (dimethyl formamide), stirring for 5-10min at the rotation speed of 150-200r/min and the temperature of 5-10 ℃, heating to 55-60 ℃, stirring for 30-40min, adding triethylamine, acetic anhydride and nickel acetate, continuously stirring for 2-3h to obtain an intermediate 1, mixing the intermediate 1 with deionized water, stirring for 10-15min at the rotation speed of 200-300r/min and the temperature of 60-70 ℃, adding concentrated sulfuric acid and 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane, reacting for 4-6h, and regulating pH to be neutral to obtain the diaminopolysiloxane;
Step B2: mixing dopamine, potassium hydroxide and DMF uniformly, introducing nitrogen for protection, stirring at the rotation speed of 120-150 r/mm and the temperature of 110-120 ℃, adding ethylene oxide, reacting for 6-8h to obtain intermediate 2, mixing 4-formylphenylboric acid, intermediate 2, chloroform and 5A molecular sieve uniformly, reacting for 10-15h at the rotation speed of 150-200r/min and the temperature of 60-65 ℃ to obtain intermediate 3, mixing diaminopolysiloxane, intermediate 3, glacial acetic acid and DMF uniformly, reacting for 10-15h at the rotation speed of 200-300r/min and the temperature of 90-95 ℃, adding DOPO, continuing to react for 10-15h, and distilling under reduced pressure to obtain the flame retardant reinforcing agent.
Further, the dosage ratio of (3-aminopropyl) diethoxyethyl silane, maleic anhydride, triethylamine, acetic anhydride and nickel acetate in the step B1 is 50mmo l:50mmo l:5mL:12mL:3.5g, the dosage ratio of the intermediate 1, deionized water and 1, 3-bis (3-aminopropyl) -1, 3-tetramethyldisiloxane is 2mmo l:20mL:1mmo l, and the dosage of concentrated sulfuric acid is 1-1.5% of the sum of the mass of the intermediate 1 and the mass of the 1, 3-bis (3-aminopropyl) -1, 3-tetramethyldisiloxane.
Further, the molar ratio of dopamine to ethylene oxide in the step B2 is 1:2, the dosage of potassium hydroxide is 1% of the mass of dopamine, the dosage ratio of 4-formylphenylboric acid, the intermediate 2, chloroform and 5A molecular sieve is 15mmo l:15mmo l:100g:2g, the molar ratio of diaminopolysiloxane to intermediate 3 is 1:3, and the dosage of glacial acetic acid is 0.5-0.8% of the mass of intermediate 3.
The invention has the beneficial effects that: the utility model provides a fire prevention flame retardant cable includes from inside to outside a plurality of conductors that set gradually, and the conductor surface cladding has the insulating layer, and the insulating layer outside is equipped with the band layer, and insulating layer and protective layer are prepared by flame retardant resin, and it has the filler to fill between band layer and the insulating layer, and the outside cladding of wrapping the inner liner has the protective layer, and flame retardant resin includes following raw materials: EVA, PE, calcium carbonate, a modified flame retardant and dicumyl peroxide, wherein the modified flame retardant takes KH560 and KH570 as raw materials to carry out hydrolytic polymerization to form silsesquioxane with double bonds and epoxy groups to prepare difunctional silsesquioxane, the difunctional silsesquioxane and diphenylphosphorus are treated by azodiisobutyronitrile to enable the double bonds on the difunctional silsesquioxane to be grafted with the P-H bonds on the diphenylphosphorus to prepare modified cage-type silsesquioxane, the modified cage-type silsesquioxane is reacted with a flame retardant reinforcing agent under alkaline conditions to enable the epoxy groups on the modified cage-type silsesquioxane to react with the hydroxyl groups on the reinforcing flame retardant to form hyperbranched alcohol, and then under the action of sodium hydroxide, the hydroxyl groups on the hyperbranched alcohol and chlorine atom sites on diphenoxyphosphoryl chloride are grafted to prepare the modified flame retardant, the flame retardant enhancer takes (3-aminopropyl) diethoxyethyl silane and maleic anhydride as raw materials, so that amino groups on the (3-aminopropyl) diethoxyethyl silane and maleic anhydride react to prepare an intermediate 1, the intermediate 1 is hydrolyzed and then polymerized with 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane to form amino-terminated polysiloxane, so that diaminopolysiloxane is prepared, dopamine and ethylene oxide react to form dihydroxyl, so that amino groups on the ethylene oxide and the dopamine react to prepare an intermediate 2, the intermediate 2 and 4-formylphenylboric acid react to prepare an intermediate 3, the intermediate 3 and the diaminopolysiloxane react to prepare aldehyde groups on the intermediate 3 and amino groups on the diaminopolysiloxane react, and adding DOPO to enable N=C bond to be grafted with P-H bond on DOPO, so as to obtain the flame retardant reinforcing agent, wherein the side chain of the flame retardant reinforcing agent contains unsaturated double bond, so that the modified flame retardant can be grafted with molecular chain when being blended with EVA and PE, further the possibility of precipitation of the modified flame retardant is reduced, the modified flame retardant is decomposed into polyphosphoric acid substances during combustion and can be dehydrated into carbon, further a carbon layer is formed to cover the surface of the cable, the effect of isolating oxygen and heat is achieved, the element B can stabilize the carbon layer to inhibit oxidation of the carbon layer, dripping is prevented, meanwhile, the molecular structure contains an organosilicon chain segment and a cage-type silsesquioxane structure, the problem of the carbon layer is further reinforced, the density of the carbon layer is improved, the diffusion of combustible gas is effectively inhibited, the release of smoke is reduced, and the effect of quick flame retardance is achieved.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but 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
The fireproof flame-retardant cable comprises a plurality of conductors which are sequentially arranged from inside to outside, wherein the surfaces of the conductors are coated with insulating layers, wrapping tape layers are arranged outside the insulating layers, fillers are filled between the wrapping tape layers and the insulating layers, and a protective layer is coated outside a wrapping liner layer;
the conductor is tinned copper wire, the wrapping band layer is mica tape, the filler is glass fiber yarn, the insulating layer and the protective layer are prepared from flame-retardant resin, and the flame-retardant resin comprises the following raw materials in parts by weight: 40 parts of EVA, 120 parts of PE, 6 parts of calcium carbonate, 4 parts of modified flame retardant and 1 part of dicumyl peroxide.
EVA265 and PE1018.
The modified flame retardant is prepared by the following steps:
step A1: mixing KH560, KH570, tetramethyl ammonium hydroxide aqueous solution, isopropanol and xylene, stirring for 10min at a rotation speed of 150r/min and a temperature of 20 ℃, regulating the pH value to be neutral, continuously stirring for 5d to obtain bifunctional silsesquioxane, dissolving the bifunctional silsesquioxane in DMF, adding diphenyl phosphorus and azodiisobutyronitrile, and reacting for 10h at a rotation speed of 200r/min and a temperature of 80 ℃ to obtain modified cage-type silsesquioxane;
And A2, uniformly mixing the modified cage-type silsesquioxane, the flame retardant reinforcing agent and DMF, stirring at the rotation speed of 150r/min and the temperature of 50 ℃, adding a sodium hydroxide solution to the pH value of 10, reacting for 6 hours to obtain hyperbranched alcohol, uniformly mixing the hyperbranched alcohol, diphenoxyphosphoryl chloride, sodium hydroxide and DMF, and reacting for 2 hours at the rotation speed of 300r/min and the temperature of 25 ℃ to obtain the modified flame retardant.
The use ratio of KH560, KH570, aqueous solution of tetramethyl ammonium hydroxide, isopropanol and xylene in the step A1 is 50mmo l:20mmo l:20mL:20mL:10mL, the mass fraction of the aqueous solution of tetramethyl ammonium hydroxide is 2%, the molar ratio of double bonds on the bifunctional silsesquioxane to diphenyl phosphorus is 1:1, and the use amount of azodiisobutyronitrile is 1% of the mass of diphenyl phosphorus.
The mass ratio of the modified cage type silsesquioxane to the flame retardant reinforcing agent in the step A2 is 2:7, and the molar ratio of the hydroxyl group on the hyperbranched alcohol to the diphenoxyphosphoryl chloride to the sodium hydroxide is 1:1:1.1.
The flame retardant reinforcing agent is prepared by the following steps:
Step B1: mixing (3-aminopropyl) diethoxyethyl silane, maleic anhydride and DMF (dimethyl formamide), stirring for 5min at the rotating speed of 150r/min and the temperature of 5 ℃, heating to 55 ℃, stirring for 30min, adding triethylamine, acetic anhydride and nickel acetate, continuously stirring for 2h to obtain an intermediate 1, mixing the intermediate 1 with deionized water, stirring for 10min at the rotating speed of 200r/min and the temperature of 60 ℃, adding concentrated sulfuric acid and 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane, reacting for 4h, and regulating the pH value to be neutral to obtain the diaminopolysiloxane;
Step B2: mixing dopamine, potassium hydroxide and DMF uniformly, introducing nitrogen for protection, stirring at the rotation speed of 120 r/mm and the temperature of 110 ℃, adding ethylene oxide, reacting for 6 hours to obtain an intermediate 2, mixing 4-formylphenylboric acid, the intermediate 2, chloroform and 5A molecular sieve uniformly, reacting for 10 hours at the rotation speed of 150r/min and the temperature of 60 ℃, obtaining an intermediate 3, mixing diaminopolysiloxane, the intermediate 3, glacial acetic acid and DMF uniformly, reacting for 10 hours at the rotation speed of 200r/min and the temperature of 90 ℃, adding DOPO, continuously reacting for 10 hours, and distilling under reduced pressure to obtain the flame retardant enhancer.
The dosage ratio of the (3-aminopropyl) diethoxyethyl silane, the maleic anhydride, the triethylamine, the acetic anhydride and the nickel acetate in the step B1 is 50mmo l:50mmo l:5mL:12mL:3.5g, the dosage ratio of the intermediate 1, the deionized water and the 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane is 2mmo l:20mL:1mmo l, and the dosage of the concentrated sulfuric acid is 1 percent of the sum of the mass of the intermediate 1 and the mass of the 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane.
The mol ratio of dopamine to ethylene oxide in the step B2 is 1:2, the dosage of potassium hydroxide is 1% of the mass of dopamine, the dosage ratio of 4-formylphenylboric acid, the intermediate 2, chloroform and the 5A molecular sieve is 15mmo l:15mmo l:100g:2g, the mol ratio of diaminopolysiloxane to the intermediate 3 is 1:3, and the dosage of glacial acetic acid is 0.5% of the mass of the intermediate 3.
Example 2
The fireproof flame-retardant cable comprises a plurality of conductors which are sequentially arranged from inside to outside, wherein the surfaces of the conductors are coated with insulating layers, wrapping tape layers are arranged outside the insulating layers, fillers are filled between the wrapping tape layers and the insulating layers, and a protective layer is coated outside a wrapping liner layer;
the conductor is tinned copper wire, the wrapping band layer is mica tape, the filler is glass fiber yarn, the insulating layer and the protective layer are prepared from flame-retardant resin, and the flame-retardant resin comprises the following raw materials in parts by weight: 45 parts of EVA, 135 parts of PE, 7 parts of calcium carbonate, 5 parts of modified flame retardant and 2 parts of dicumyl peroxide.
EVA265 and PE1018.
The modified flame retardant is prepared by the following steps:
Step A1: mixing KH560, KH570, tetramethyl ammonium hydroxide aqueous solution, isopropanol and xylene, stirring for 15min at a rotation speed of 150r/min and a temperature of 23 ℃, regulating the pH value to be neutral, continuously stirring for 6d to obtain bifunctional silsesquioxane, dissolving the bifunctional silsesquioxane in DMF, adding diphenyl phosphorus and azodiisobutyronitrile, and reacting for 11h at a rotation speed of 200r/min and a temperature of 83 ℃ to obtain modified cage-type silsesquioxane;
And A2, uniformly mixing the modified cage-type silsesquioxane, the flame retardant reinforcing agent and DMF, stirring at the rotation speed of 150r/min and the temperature of 55 ℃, adding a sodium hydroxide solution to the pH value of 10, reacting for 7 hours to obtain hyperbranched alcohol, uniformly mixing the hyperbranched alcohol, diphenoxyphosphoryl chloride, sodium hydroxide and DMF, and reacting for 3 hours at the rotation speed of 300r/min and the temperature of 28 ℃ to obtain the modified flame retardant.
The use ratio of KH560, KH570, aqueous solution of tetramethyl ammonium hydroxide, isopropanol and xylene in the step A1 is 50mmo l:20mmo l:20mL:20mL:10mL, the mass fraction of the aqueous solution of tetramethyl ammonium hydroxide is 2%, the molar ratio of double bonds on the bifunctional silsesquioxane to diphenyl phosphorus is 1:1, and the use amount of azodiisobutyronitrile is 1.3% of the mass of diphenyl phosphorus.
The mass ratio of the modified cage type silsesquioxane to the flame retardant reinforcing agent in the step A2 is 2:7, and the molar ratio of the hydroxyl group on the hyperbranched alcohol to the diphenoxyphosphoryl chloride to the sodium hydroxide is 1:1:1.1.
The flame retardant reinforcing agent is prepared by the following steps:
Step B1: mixing (3-aminopropyl) diethoxyethyl silane, maleic anhydride and DMF (dimethyl formamide), stirring for 8min at the rotating speed of 150r/min and the temperature of 8 ℃, heating to 58 ℃, stirring for 35min, adding triethylamine, acetic anhydride and nickel acetate, continuously stirring for 3h to obtain an intermediate 1, mixing the intermediate 1 with deionized water, stirring for 15min at the rotating speed of 200r/min and the temperature of 65 ℃, adding concentrated sulfuric acid and 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane, reacting for 5h, and regulating the pH value to be neutral to obtain the diaminopolysiloxane;
Step B2: mixing dopamine, potassium hydroxide and DMF uniformly, introducing nitrogen for protection, stirring at the rotation speed of 120 r/mm and the temperature of 115 ℃, adding ethylene oxide, reacting for 7 hours to obtain an intermediate 2, mixing 4-formylphenylboric acid, the intermediate 2, chloroform and 5A molecular sieve uniformly, reacting for 13 hours at the rotation speed of 150r/min and the temperature of 65 ℃ to obtain an intermediate 3, mixing diaminopolysiloxane, the intermediate 3, glacial acetic acid and DMF uniformly, reacting for 13 hours at the rotation speed of 200r/min and the temperature of 95 ℃, adding DOPO, continuously reacting for 13 hours, and distilling under reduced pressure to obtain the flame retardant enhancer.
The dosage ratio of the (3-aminopropyl) diethoxyethyl silane, the maleic anhydride, the triethylamine, the acetic anhydride and the nickel acetate in the step B1 is 50mmo l:50mmo l:5mL:12mL:3.5g, the dosage ratio of the intermediate 1, the deionized water and the 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane is 2mmo l:20mL:1mmo l, and the dosage of the concentrated sulfuric acid is 1.5 percent of the sum of the mass of the intermediate 1 and the mass of the 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane.
The mol ratio of dopamine to ethylene oxide in the step B2 is 1:2, the dosage of potassium hydroxide is 1% of the mass of dopamine, the dosage ratio of 4-formylphenylboric acid, the intermediate 2, chloroform and the 5A molecular sieve is 15mmo l:15mmo l:100g:2g, the mol ratio of diaminopolysiloxane to the intermediate 3 is 1:3, and the dosage of glacial acetic acid is 0.8% of the mass of the intermediate 3.
Example 3
The fireproof flame-retardant cable comprises a plurality of conductors which are sequentially arranged from inside to outside, wherein the surfaces of the conductors are coated with insulating layers, wrapping tape layers are arranged outside the insulating layers, fillers are filled between the wrapping tape layers and the insulating layers, and a protective layer is coated outside a wrapping liner layer;
The conductor is tinned copper wire, the wrapping band layer is mica tape, the filler is glass fiber yarn, the insulating layer and the protective layer are prepared from flame-retardant resin, and the flame-retardant resin comprises the following raw materials in parts by weight: 50 parts of EVA, 150 parts of PE, 8 parts of calcium carbonate, 6 parts of modified flame retardant and 3 parts of dicumyl peroxide.
EVA265 and PE1018.
The modified flame retardant is prepared by the following steps:
Step A1: mixing KH560, KH570, tetramethyl ammonium hydroxide aqueous solution, isopropanol and xylene, stirring for 15min at a rotation speed of 200r/min and a temperature of 25 ℃, regulating the pH value to be neutral, continuously stirring for 7d to obtain bifunctional silsesquioxane, dissolving the bifunctional silsesquioxane in DMF, adding diphenyl phosphorus and azodiisobutyronitrile, and reacting for 12h at a rotation speed of 300r/min and a temperature of 85 ℃ to obtain modified cage-type silsesquioxane;
And A2, uniformly mixing the modified cage-type silsesquioxane, the flame retardant reinforcing agent and DMF, stirring at the rotation speed of 200r/min and the temperature of 60 ℃, adding a sodium hydroxide solution to the pH value of 11, reacting for 8 hours to obtain hyperbranched alcohol, uniformly mixing the hyperbranched alcohol, diphenoxyphosphoryl chloride, sodium hydroxide and DMF, and reacting for 3 hours at the rotation speed of 500r/min and the temperature of 30 ℃ to obtain the modified flame retardant.
The use ratio of KH560, KH570, aqueous solution of tetramethyl ammonium hydroxide, isopropanol and xylene in the step A1 is 50mmo l:20mmo l:20mL:20mL:10mL, the mass fraction of the aqueous solution of tetramethyl ammonium hydroxide is 2%, the molar ratio of double bonds on the bifunctional silsesquioxane to diphenyl phosphorus is 1:1, and the use amount of azodiisobutyronitrile is 1.5% of the mass of diphenyl phosphorus.
The mass ratio of the modified cage type silsesquioxane to the flame retardant reinforcing agent in the step A2 is 2:7, and the molar ratio of the hydroxyl group on the hyperbranched alcohol to the diphenoxyphosphoryl chloride to the sodium hydroxide is 1:1:1.1.
The flame retardant reinforcing agent is prepared by the following steps:
Step B1: mixing (3-aminopropyl) diethoxyethyl silane, maleic anhydride and DMF (dimethyl formamide), stirring for 10min at the rotation speed of 200r/min and the temperature of 10 ℃, heating to 60 ℃, stirring for 40min, adding triethylamine, acetic anhydride and nickel acetate, continuously stirring for 3h to obtain an intermediate 1, mixing the intermediate 1 with deionized water, stirring for 15min at the rotation speed of 300r/min and the temperature of 70 ℃, adding concentrated sulfuric acid and 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane, reacting for 6h, and regulating the pH value to be neutral to obtain the diaminopolysiloxane;
Step B2: mixing dopamine, potassium hydroxide and DMF uniformly, introducing nitrogen for protection, stirring at the rotation speed of 150 r/mm and the temperature of 120 ℃, adding ethylene oxide, reacting for 8 hours to obtain an intermediate 2, mixing 4-formylphenylboric acid, the intermediate 2, chloroform and 5A molecular sieve uniformly, reacting for 15 hours at the rotation speed of 200r/min and the temperature of 65 ℃, obtaining an intermediate 3, mixing diaminopolysiloxane, the intermediate 3, glacial acetic acid and DMF uniformly, reacting for 15 hours at the rotation speed of 300r/min and the temperature of 95 ℃, adding DOPO, continuously reacting for 15 hours, and distilling under reduced pressure to obtain the flame retardant enhancer.
The dosage ratio of the (3-aminopropyl) diethoxyethyl silane, the maleic anhydride, the triethylamine, the acetic anhydride and the nickel acetate in the step B1 is 50mmo l:50mmo l:5mL:12mL:3.5g, the dosage ratio of the intermediate 1, the deionized water and the 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane is 2mmo l:20mL:1mmo l, and the dosage of the concentrated sulfuric acid is 1.5 percent of the sum of the mass of the intermediate 1 and the mass of the 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane.
The mol ratio of dopamine to ethylene oxide in the step B2 is 1:2, the dosage of potassium hydroxide is 1% of the mass of dopamine, the dosage ratio of 4-formylphenylboric acid, the intermediate 2, chloroform and the 5A molecular sieve is 15mmo l:15mmo l:100g:2g, the mol ratio of diaminopolysiloxane to the intermediate 3 is 1:3, and the dosage of glacial acetic acid is 0.8% of the mass of the intermediate 3.
Comparative example 1
This comparative example uses a flame retardant enhancer instead of the modified flame retardant as compared to example 1, with the remainder of the procedure being the same.
Comparative example 2
This comparative example uses a diaminopolysiloxane instead of a flame retardant enhancer as compared to example 1, with the remainder of the procedure being the same.
Comparative example 3
This comparative example uses modified cage silsesquioxane instead of modified flame retardant as compared to example 1, with the remainder of the procedure being the same.
The flame-retardant resins prepared in examples 1 to 3 and comparative examples 1 to 3 were tested with a limiting oxygen index tester according to the standard of GB/T10707-2008 for a volume fraction of oxygen in an oxygen and nitrogen mixed gas which can just maintain the combustion of a sample bar, the sample was 80mm by 6.5mm by 3mm, the vertical combustion rating was measured according to the standard of GB/T10707-2008, the sample was 130mm by 13mm by 3mm, the smoke release rate and total smoke release amount of the sample under heat radiation were recorded with a cone calorimeter according to the standard of I SO5660-1 2002, the sample was 100mm by 3mm, and the test results are shown in the following table.
The table shows that the application has good flame retardant effect.
The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.
Claims (5)
1. A fire-resistant flame-retardant cable, characterized in that: the insulated conductor comprises a plurality of conductors which are sequentially arranged from inside to outside, wherein the surface of the conductor is coated with an insulating layer, the outside of the insulating layer is provided with a wrapping tape layer, a filler is filled between the wrapping tape layer and the insulating layer, and the outside of a wrapping liner layer is coated with a protective layer;
The conductor is tinned copper wire, the wrapping band layer is mica tape, the filler is glass fiber yarn, the insulating layer and the protective layer are prepared from flame-retardant resin, and the flame-retardant resin comprises the following raw materials in parts by weight: 40-50 parts of EVA, 120-150 parts of PE, 6-8 parts of calcium carbonate, 4-6 parts of modified flame retardant and 1-3 parts of dicumyl peroxide;
The modified flame retardant is prepared by the following steps:
Step A1: mixing KH560, KH570, tetramethyl ammonium hydroxide aqueous solution, isopropanol and xylene, stirring, regulating the pH value to be neutral, continuing stirring to obtain difunctional silsesquioxane, dissolving the difunctional silsesquioxane in DMF, adding diphenylphosphine and azodiisobutyronitrile, and reacting to obtain modified cage-type silsesquioxane;
Step A2, mixing and stirring the modified cage-type silsesquioxane, the flame retardant reinforcing agent and DMF, adding a sodium hydroxide solution, reacting to obtain hyperbranched alcohol, and mixing and reacting the hyperbranched alcohol, diphenoxyphosphoryl chloride, sodium hydroxide and DMF to obtain the modified flame retardant;
the flame retardant reinforcing agent is prepared by the following steps:
Step B1: mixing and stirring (3-aminopropyl) diethoxyethyl silane, maleic anhydride and DMF, heating, adding triethylamine, acetic anhydride and nickel acetate, continuously stirring to obtain an intermediate 1, mixing and stirring the intermediate 1 and deionized water, adding concentrated sulfuric acid and 1, 3-bis (3-aminopropyl) -1, 3-tetramethyl disiloxane, reacting, and regulating pH to be neutral to obtain the diaminopolysiloxane;
Step B2: and (3) uniformly mixing dopamine, potassium hydroxide and DMF, introducing nitrogen for protection, stirring, adding ethylene oxide, reacting to obtain an intermediate 2, mixing 4-formylphenylboric acid, the intermediate 2, chloroform and a 5A molecular sieve for reaction to obtain an intermediate 3, mixing and reacting diaminopolysiloxane, the intermediate 3, glacial acetic acid and DMF, adding DOPO for continuous reaction, and distilling under reduced pressure to obtain the flame retardant reinforcing agent.
2. A fire-resistant and flame-retardant cable according to claim 1, characterized in that: the dosage ratio of KH560, KH570, tetramethyl ammonium hydroxide aqueous solution, isopropanol and xylene in the step A1 is 50mmol:20 mL:20mL:10mL, the molar ratio of double bond on the bifunctional silsesquioxane to diphenylphosphine is 1:1, and the dosage of azodiisobutyronitrile is 1-1.5% of the mass of diphenylphosphine.
3. A fire-resistant and flame-retardant cable according to claim 1, characterized in that: the mass ratio of the modified cage type silsesquioxane to the flame retardant reinforcing agent in the step A2 is 2:7, and the molar ratio of the hydroxyl group on the hyperbranched alcohol to the diphenoxyphosphoryl chloride to the sodium hydroxide is 1:1:1.1.
4. A fire-resistant and flame-retardant cable according to claim 1, characterized in that: the dosage ratio of (3-aminopropyl) diethoxyethyl silane, maleic anhydride, triethylamine, acetic anhydride and nickel acetate in step B1 is 50mmol:50mmol:5mL:12mL:3.5g, the dosage ratio of intermediate 1, deionized water and 1, 3-bis (3-aminopropyl) -1, 3-tetramethyldisiloxane is 2mmol:20mL:1mmol, and the dosage of concentrated sulfuric acid is 1-1.5% of the sum of the mass of intermediate 1 and 1, 3-bis (3-aminopropyl) -1, 3-tetramethyldisiloxane.
5. A fire-resistant and flame-retardant cable according to claim 1, characterized in that: the mol ratio of dopamine to ethylene oxide in the step B2 is 1:2, the dosage of potassium hydroxide is 1% of the mass of dopamine, the dosage ratio of 4-formylphenylboric acid, intermediate 2, chloroform and 5A molecular sieve is 15 mmol/100 g/2 g, the mol ratio of diaminopolysiloxane to intermediate 3 is 1:3, and the dosage of glacial acetic acid is 0.5-0.8% of the mass of intermediate 3.
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| US4671896A (en) * | 1984-08-14 | 1987-06-09 | Fujikura Ltd. | Flame-retardant composition and flame-retardant cable using same |
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| CN207409280U (en) * | 2017-11-03 | 2018-05-25 | 湖北中南电缆研究所有限公司 | It is a kind of to integrate waterproof, fire resisting, the halogen-free low-smoke high-flame shielded flexible cable of flame retarding function |
| DE102020122063A1 (en) * | 2019-08-23 | 2021-02-25 | Hitachi Metals, Ltd. | ELECTRICALLY INSULATED CABLE |
| CN116435022A (en) * | 2023-05-12 | 2023-07-14 | 广东澳通特种电缆有限公司 | Low-smoke flame-retardant cable and preparation method thereof |
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| US4671896A (en) * | 1984-08-14 | 1987-06-09 | Fujikura Ltd. | Flame-retardant composition and flame-retardant cable using same |
| KR20140109558A (en) * | 2013-03-04 | 2014-09-16 | 엘에스전선 주식회사 | Power cable with high fire retardance |
| CN104240832A (en) * | 2014-09-26 | 2014-12-24 | 中利科技集团股份有限公司 | Novel flame-retardant fireproof cable |
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| DE102020122063A1 (en) * | 2019-08-23 | 2021-02-25 | Hitachi Metals, Ltd. | ELECTRICALLY INSULATED CABLE |
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