CN107936439A - A kind of high tenacity flame retardant cable and its preparation process for power circuit - Google Patents

A kind of high tenacity flame retardant cable and its preparation process for power circuit Download PDF

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Publication number
CN107936439A
CN107936439A CN201710965023.XA CN201710965023A CN107936439A CN 107936439 A CN107936439 A CN 107936439A CN 201710965023 A CN201710965023 A CN 201710965023A CN 107936439 A CN107936439 A CN 107936439A
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China
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flame retardant
high tenacity
retardant cable
power circuit
parts
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CN201710965023.XA
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Chinese (zh)
Inventor
周红军
陈文�
胡必伟
丁亚杰
杨鑫
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State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Jiangsu Electric Power Co Ltd
Yancheng Power Supply Co of State Grid Jiangsu Electric Power Co Ltd
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Priority to CN201710965023.XA priority Critical patent/CN107936439A/en
Publication of CN107936439A publication Critical patent/CN107936439A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L51/006—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to block copolymers containing at least one sequence of polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • H01B3/448—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 other vinyl compounds
    • 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

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  • 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)
  • Organic Insulating Materials (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The present invention provides a kind of high tenacity flame retardant cable and its preparation process for power circuit.High tenacity flame retardant cable is prepared by raw materials such as hydrogenated polystyrene butadiene block copolymer, polypropylene, maleic anhydride, MCA fire retardants, diethyl hypo-aluminum orthophosphate, montmorillonite, silicone powder, cumyl peroxide, antioxidant.There is hydrogenated polystyrene butadiene block copolymer good mechanical property, weatherability, heat resistance and compression resistant morphotropism, dielectric strength to reach 39MV/m；Polypropylene has the characteristics that intensity is high, hardness is big, wear-resisting, there is higher dielectric coefficient and breakdown voltage；The composite material elastic strength increase obtained by montmorillonite, silicone powder and maleic anhydride modified composite material, heat endurance improves, its tensile strength is improved to 12.75Mpa, and elongation at break is up to 932.5%, water resistance is slightly decreased, and reduces counter balance torque during melting；As the addition of antioxidant is so that the anti-flammability and heat endurance of composite material are obviously improved, its oxygen index (OI) is promoted to 32.

Description

A kind of high tenacity flame retardant cable and its preparation process for power circuit
Technical field
The invention belongs to electric power Material Field, and in particular to a kind of high tenacity flame retardant cable and its system for power circuit Standby technique.
Background technology
With the rapid development of modern society, the safety of power circuit seems all the more important.Power circuit is sudden and violent for a long time Open air is exposed at, requirements at the higher level are proposed for physical property of the cable under complicated weather.The cable being widely used at present is main It is silicone rubber for cable, although it is low, oxidizable, tough with intensity with good heat resistance and cold resistance, silicone rubber for cable The shortcomings of property is bad, can not meet power circuit requirement steady in a long-term.
The content of the invention
Based on technical problem existing for usual silicone rubber, the present invention provides a kind of high tenacity for power circuit is fire-retardant Cable and its preparation process.
A kind of high tenacity flame retardant cable for power circuit, its components by weight percent are：
80~120 parts of hydrogenated polystyrene-butadiene block copolymer, 80~120 parts of polypropylene, maleic anhydride 4~8 Part, 12~15 parts of MCA fire retardants, 6~10 parts of diethyl hypo-aluminum orthophosphate, 7~10 parts of montmorillonite, 2~4 parts of silicone powder, peroxidating 1~2 part of diisopropylbenzene (DIPB), 2~4 parts of antioxidant.
Hydrogenated polystyrene-the butadiene block copolymer is using butadiene, styrene as monomer, and hexamethylene is molten Agent, n-BuLi are initiator, and tetrahydrofuran is activator, and silicon tetrachloride is couplant, and basic glue is made through anionic polymerisation, It is hydrogenated with and is made using luxuriant series catalysts again.
The polypropylene is a kind of crystalline polymer of compound with regular structure, and concrete model is polypropylene T30S thermoplastic resins Fat.
A kind of natural minerals of silicate of montmorillonite, containing Al2O316.54%th, MgO 4.65%, SiO2 50.95%, it is a kind of typical expansion type flame retardant.
The silicone powder is powdered not less than the macromolecule that 40% content silicone dispersion is formed into silica Solid.
The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
As shown in Figure 1, for above cable is made, its step of preparation process is as follows：
(1) by dried hydrogenated polystyrene-butadiene block copolymer, polypropylene, maleic anhydride, MCA fire retardants, Diethyl hypo-aluminum orthophosphate, silicone powder, montmorillonite, cumyl peroxide, antioxidant input kneader are fused and mixed, and are mixed Thing glue, temperature are 160~180 DEG C, and rotating speed is 40~60r/min, and the reaction time is 20~40min；
(2) the mixture glue obtained in step (1) is heated to reflux 1h in dimethylbenzene with 90~100 DEG C, treats that its temperature is cold But to after room temperature, pour into acetone and precipitate, then filtered, obtain cross-linking products, then cross-linking products are put into acetone and are returned Stream heating 24h, removes unreacted impurity, finally washs, filters, is dry；
(3) finished product at the beginning of step (2) dried colloid being extruded electric wire by the mould of forming machine, at the same again cable just into Gas is continually fed into the cavity of product, obtains high tenacity flame retardant cable finished product.
Due to the utilization of above-mentioned technical proposal, the present invention has the following advantages compared with prior art：
Hydrogenated polystyrene-butadiene block copolymer has good mechanical property, weatherability, heat resistance and compression resistant Morphotropism；, can be with the blending of many polymer with good blended characteristic；Its electrical property is also relatively good, and volume resistivity is situated between Between 1012-1014 Ω m, dielectric strength reaches 39MV/m；Polypropylene has the characteristics that intensity is high, hardness is big, wear-resisting, has Good processability, mechanical property, heat resistance, weatherability and electrical property, has higher dielectric coefficient and breakdown voltage, is used as The reliable raw material of electric wire and electrical apparatus insulation material.
The composite material elastic strength increase obtained by montmorillonite, silicone powder and maleic anhydride modified composite material, heat Stability improves.Its tensile strength is improved to 12.75Mpa, and elongation at break is up to 932.5%.Water resistance is slightly decreased at the same time, is dropped Counter balance torque during low melting.With the addition of antioxidant the anti-flammability of composite material and heat endurance are obviously improved, Its oxygen index (OI) is promoted to 32.
Brief description of the drawings
Fig. 1 is a kind of high tenacity flame retardant cable preparation technology flow chart for power circuit of the invention.
Embodiment
Here is that a kind of high tenacity flame retardant cable and its preparation process for power circuit of the invention elaborates.
Embodiment 1
80 parts of hydrogenated polystyrene-butadiene block copolymer, 80 parts of polypropylene, 4 parts of maleic anhydride, MCA fire retardants 12 Part, 6 parts of diethyl hypo-aluminum orthophosphate, 7 parts of montmorillonite, 2 parts of silicone powder, 1 part of cumyl peroxide, 2 parts of antioxidant.
Hydrogenated polystyrene-the butadiene block copolymer is using butadiene, styrene as monomer, and hexamethylene is molten Agent, n-BuLi are initiator, and tetrahydrofuran is activator, and silicon tetrachloride is couplant, and basic glue is made through anionic polymerisation, It is hydrogenated with and is made using luxuriant series catalysts again.
The polypropylene is a kind of crystalline polymer of compound with regular structure, and concrete model is polypropylene T30S thermoplastic resins Fat.
A kind of natural minerals of silicate of montmorillonite, containing Al2O316.54%th, MgO 4.65%, SiO2 50.95%, it is a kind of typical expansion type flame retardant.
The silicone powder is powdered not less than the macromolecule that 40% content silicone dispersion is formed into silica Solid.
The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
For above cable is made, its step of preparation process is as follows：
(1) by dried hydrogenated polystyrene-butadiene block copolymer, polypropylene, maleic anhydride, MCA fire retardants, Diethyl hypo-aluminum orthophosphate, silicone powder, montmorillonite, cumyl peroxide, antioxidant input kneader are fused and mixed, and are mixed Thing glue, temperature are 160 DEG C, rotating speed 40r/min, reaction time 20min；
(2) the mixture glue obtained in step (1) is heated to reflux 1h in dimethylbenzene with 90 DEG C, treats that its temperature is cooled to often Wen Hou, pours into acetone and precipitates, and is then filtered, and obtains cross-linking products, then cross-linking products are put into acetone and are heated at reflux 24h, removes unreacted impurity, finally washs, filters, is dry；
(3) finished product at the beginning of step (2) dried colloid being extruded electric wire by the mould of forming machine, at the same again cable just into Gas is continually fed into the cavity of product, obtains high tenacity flame retardant cable finished product.
Embodiment 2
120 parts of hydrogenated polystyrene-butadiene block copolymer, 120 parts of polypropylene, 8 parts of maleic anhydride, MCA fire retardants 15 parts, 10 parts of diethyl hypo-aluminum orthophosphate, 10 parts of montmorillonite, 4 parts of silicone powder, 2 parts of cumyl peroxide, 4 parts of antioxidant.
Hydrogenated polystyrene-the butadiene block copolymer is using butadiene, styrene as monomer, and hexamethylene is molten Agent, n-BuLi are initiator, and tetrahydrofuran is activator, and silicon tetrachloride is couplant, and basic glue is made through anionic polymerisation, It is hydrogenated with and is made using luxuriant series catalysts again.
The polypropylene is a kind of crystalline polymer of compound with regular structure, and concrete model is polypropylene T30S thermoplastic resins Fat.
A kind of natural minerals of silicate of montmorillonite, containing Al2O316.54%；MgO 4.65%；SiO2 50.95%, it is a kind of typical expansion type flame retardant.
The silicone powder is powdered not less than the macromolecule that 40% content silicone dispersion is formed into silica Solid.
The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
For above cable is made, its step of preparation process is as follows：
(1) by dried hydrogenated polystyrene-butadiene block copolymer, polypropylene, maleic anhydride, MCA fire retardants, Diethyl hypo-aluminum orthophosphate, silicone powder, montmorillonite, cumyl peroxide, antioxidant input kneader are fused and mixed, and are mixed Thing glue, temperature are 180 DEG C, rotating speed 60r/min, reaction time 40min；
(2) the mixture glue obtained in step (1) is heated to reflux 1h in dimethylbenzene with 100 DEG C, treats that its temperature is cooled to After room temperature, pour into acetone and precipitate, then filtered, obtain cross-linking products, then cross-linking products are put into reflux in acetone and are added Hot 24h, removes unreacted impurity, finally washs, filters, is dry；
(3) finished product at the beginning of step (2) dried colloid being extruded electric wire by the mould of forming machine, at the same again cable just into Gas is continually fed into the cavity of product, obtains high tenacity flame retardant cable finished product.
Embodiment 3
100 parts of hydrogenated polystyrene-butadiene block copolymer, 100 parts of polypropylene, 6 parts of maleic anhydride, MCA fire retardants 13 parts, 8 parts of diethyl hypo-aluminum orthophosphate, 9 parts of montmorillonite, 3 parts of silicone powder, 1.5 parts of cumyl peroxide, 3 parts of antioxidant.
Hydrogenated polystyrene-the butadiene block copolymer is using butadiene, styrene as monomer, and hexamethylene is molten Agent, n-BuLi are initiator, and tetrahydrofuran is activator, and silicon tetrachloride is couplant, and basic glue is made through anionic polymerisation, It is hydrogenated with and is made using luxuriant series catalysts again.
The polypropylene is a kind of crystalline polymer of compound with regular structure, and concrete model is polypropylene T30S thermoplastic resins Fat.
A kind of natural minerals of silicate of montmorillonite, containing Al2O316.54%th, MgO 4.65%, SiO2 50.95%, it is a kind of typical expansion type flame retardant.
The silicone powder is powdered not less than the macromolecule that 40% content silicone dispersion is formed into silica Solid.
The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
For above cable is made, its step of preparation process is as follows：
(1) by dried hydrogenated polystyrene-butadiene block copolymer, polypropylene, maleic anhydride, MCA fire retardants, Diethyl hypo-aluminum orthophosphate, silicone powder, montmorillonite, cumyl peroxide, antioxidant input kneader are fused and mixed, and are mixed Thing glue, temperature are 180 DEG C, rotating speed 60r/min, reaction time 40min；
(2) the mixture glue obtained in step (1) is heated to reflux 1h in dimethylbenzene with 100 DEG C, treats that its temperature is cooled to After room temperature, pour into acetone and precipitate, then filtered, obtain cross-linking products, then cross-linking products are put into reflux in acetone and are added Hot 24h, removes unreacted impurity, finally washs, filters, is dry；
(3) finished product at the beginning of step (2) dried colloid being extruded electric wire by the mould of forming machine, at the same again cable just into Gas is continually fed into the cavity of product, obtains high tenacity flame retardant cable finished product.
The one kind obtained by embodiment 1~3 is used for its ignition point of power circuit high tenacity flame retardant cable finished product height, fire resisting Property is strong, can work at 250 DEG C 24 it is small when more than do not decompose, tensile strength brings up to 12.75Mpa, and elongation at break is brought up to 932.5%, oxygen index (OI) is promoted to 35, and anti-flammability and heat endurance are obviously improved.
Finally it should be noted that only illustrating technical scheme rather than its limitations with reference to above-described embodiment.Institute The those of ordinary skill in category field is it is to be understood that those skilled in the art can repair the embodiment of the present invention Change or equivalent substitution, but these modifications or change are among pending claims are applied for.

Claims (7)

  1. A kind of 1. high tenacity flame retardant cable for power circuit, it is characterised in that the weight of the high tenacity flame retardant cable raw material Measuring component is：80~120 parts of hydrogenated polystyrene-butadiene block copolymer, 80~120 parts of polypropylene, maleic anhydride 4~8 Part, 12~15 parts of MCA fire retardants, 6~10 parts of diethyl hypo-aluminum orthophosphate, 7~10 parts of montmorillonite, 2~4 parts of silicone powder, peroxidating 1~2 part of diisopropylbenzene (DIPB), 2~4 parts of antioxidant.
  2. 2. the high tenacity flame retardant cable according to claim 1 for power circuit, it is characterised in that the hydrogenation polyphenyl Ethylene-butadiene block copolymer is using butadiene, styrene as monomer, and hexamethylene is solvent, and n-BuLi is initiator, four Hydrogen furans is activator, and silicon tetrachloride is couplant, basic glue is made through anionic polymerisation, then added using luxuriant series catalysts Hydrogen and be made.
  3. 3. the high tenacity flame retardant cable according to claim 1 for power circuit, it is characterised in that the polypropylene is A kind of crystalline polymer of compound with regular structure, concrete model are polypropylene T30S thermoplastic resins.
  4. 4. the high tenacity flame retardant cable according to claim 1 for power circuit, it is characterised in that the montmorillonite is A kind of natural minerals of silicate, containing Al2O316.54%th, MgO 4.65%, SiO250.95%, it is a kind of expansion type flame-retarding Agent.
  5. 5. the high tenacity flame retardant cable according to claim 1 for power circuit, it is characterised in that the silicone powder is The macromolecule pulverulent solids formed not less than 40% content silicone dispersion into silica.
  6. 6. the high tenacity flame retardant cable according to claim 1 for power circuit, it is characterised in that the antioxidant For four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters.
  7. 7. a kind of preparation process of high tenacity flame retardant cable for power circuit according to claim 1-6, its feature It is, comprises the following steps：
    (1) by dried hydrogenated polystyrene-butadiene block copolymer, polypropylene, maleic anhydride, MCA fire retardants, diethyl Base hypo-aluminum orthophosphate, silicone powder, montmorillonite, cumyl peroxide, antioxidant input kneader are fused and mixed, and obtain mixture Glue, temperature are 160~180 DEG C, and rotating speed is 40~60r/min, and the reaction time is 20~40min；
    (2) the mixture glue for obtaining step (1) is heated to reflux 1h in dimethylbenzene with 90~100 DEG C, treats that its temperature is cooled to After room temperature, pour into acetone and precipitate, then filtered, obtain cross-linking products, then cross-linking products are put into reflux in acetone and are added Hot 24h, removes unreacted impurity, finally washs, filters, is dry；
    (3) finished product at the beginning of step (2) dried colloid being extruded electric wire by the mould of forming machine, while the finished product at the beginning of cable Gas is continually fed into cavity, obtains high tenacity flame retardant cable finished product.
CN201710965023.XA 2017-10-17 2017-10-17 A kind of high tenacity flame retardant cable and its preparation process for power circuit Pending CN107936439A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114854115A (en) * 2022-04-08 2022-08-05 杭州富禧塑胶材料有限公司 Flame-retardant sheath rubber material for salt mist-resistant offshore wind power cable and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930738B2 (en) * 1981-12-07 1984-07-28 株式会社フジクラ Mixture for heat-resistant and flame-retardant cross-linked polypropylene
CN104629175A (en) * 2015-01-20 2015-05-20 江苏上上电缆集团有限公司 Low-smoke halogen-free flame-retardant polypropylene cable material and preparation method thereof
CN104987644A (en) * 2015-07-22 2015-10-21 深圳瑞亚达科技有限公司 Precipitation-resistant halogen-free flame-retardant wire and cable material free of phosphine and preparation method therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5930738B2 (en) * 1981-12-07 1984-07-28 株式会社フジクラ Mixture for heat-resistant and flame-retardant cross-linked polypropylene
CN104629175A (en) * 2015-01-20 2015-05-20 江苏上上电缆集团有限公司 Low-smoke halogen-free flame-retardant polypropylene cable material and preparation method thereof
CN104987644A (en) * 2015-07-22 2015-10-21 深圳瑞亚达科技有限公司 Precipitation-resistant halogen-free flame-retardant wire and cable material free of phosphine and preparation method therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114854115A (en) * 2022-04-08 2022-08-05 杭州富禧塑胶材料有限公司 Flame-retardant sheath rubber material for salt mist-resistant offshore wind power cable and preparation method thereof
CN114854115B (en) * 2022-04-08 2023-08-22 杭州富禧塑胶材料有限公司 Salt-fog-resistant flame-retardant sheath sizing material for offshore wind power cable and preparation method thereof

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