CN106633588A - Cable material for electromobile charging piles and preparation method thereof - Google Patents

Cable material for electromobile charging piles and preparation method thereof Download PDF

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CN106633588A
CN106633588A CN201611138158.0A CN201611138158A CN106633588A CN 106633588 A CN106633588 A CN 106633588A CN 201611138158 A CN201611138158 A CN 201611138158A CN 106633588 A CN106633588 A CN 106633588A
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parts
cable material
charging pile
electric automobile
automobile charging
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CN106633588B (en
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向红先
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Yancheng Qing Da New Material Co., Ltd.
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Chengdu Yuya Science and Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
    • C08L53/025Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes modified
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/44Insulators 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30Insulators 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
    • H01B3/44Insulators 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
    • H01B3/442Insulators 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 aromatic vinyl compounds
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/02Flame or fire retardant/resistant
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/08Stabilised against heat, light or radiation or oxydation
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/20Applications use in electrical or conductive gadgets
    • C08L2203/202Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00Properties characterising the ingredient of the composition
    • C08L2207/06Properties of polyethylene
    • C08L2207/062HDPE

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  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
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Abstract

The invention discloses a cable material for electromobile charging piles and a preparation method thereof. The cable material for electromobile charging piles is composed of SEBS (styrene elastomer), nitrile-butadiene rubber, TPU (thermoplastic elastomer), high-density polyethylene, polypyromelliticimide, lower-hydrate zinc borate, a compatilizer and DMDPB (2,3-dimethyl-2,3-diphenyl butane). The cable material for electromobile charging piles has the advantages of favorable flame retardancy, low flame retardant addition amount, heat resistance, low smoke, mechanical properties and the like; and the flame retardant has the advantages of low toxicity and environment friendliness, and is cheap and accessible.

Description

A kind of electric automobile charging pile cable material and preparation method thereof
Technical field
The present invention relates to a kind of cable material, and in particular to a kind of electric automobile charging pile cable material and preparation method.
Background technology
Thermoplastic elastomer (TPE), i.e. TPE, both processing characteristicies with thermoplastic, and with the physical of vulcanized rubber Can, it is the advantageous combination of plastics and rubber advantage.Thermoplastic elastomer (TPE) is being captured and is being pertaining only to vulcanized rubber originally without restraint Manor.In the recent decade, electronic apparatus, communication and the fast development of automobile industry has driven the high speed in thermoplastic elastomer (TPE) city Development.Thermoplastic elastomer (TPE)(TPE)The performance of technical process of the physical and mechanical properties with vulcanized rubber and thermoplastic.By In being not required to through heat cure, production can be completed using general device of plastic processing.
Because charging pile cable load electric current is larger, conductor easily generates heat, while charging pile cable is exposed to for a long time the external world , there is the risk met naked light and burn in environment.So the insulating materials for needing charging pile cable has certain anti-flammability.It is complicated External environment need cable to need more preferable weatherability, and using when there is the situation that cable circumnutates unavoidably, so phase The cable answered should have the preferable resistance to performance that circumnutates.And conductor easily causes cable insulation material by the heat that high current is produced Heating and aging, therefore, charging pile cable have higher wanting with the aspect such as fire-retardant to hot-air aging resistance, weatherability, resistance to circumnutating Ask.
CN103554814 discloses a kind of good TPE material of resistance to elevated temperatures, it by following weight portion each component system Into:Hydrogenated styrene-butadiene-styrene block copolymers 80-100 parts, hydrogenation naphthenic oil 80-100 parts, polypropylene 15-20 Part, Propylene-ethylene random copolymer 15-20 part, calcium carbonate 100-120 parts, calcium stearate 0.5-1 parts, the 2- tert-butyl groups -4,6- two Methylphenol 0.1-0.2 parts, 2,4,6- tri-butyl-phenol 0.4-0.8 parts.The TPE material heat resistance is good, compressive deformation, bullet Property the physical property such as recover and will not be remarkably decreased because temperature is too high, but its fire resistance is poor.
CN201410390759 discloses a kind of modified TPE mixing materials and its system of electric automobile charging pile cable Preparation Method, the TPE mixing materials include by weight following component:50~70 parts of thermoplastic elastomer (TPE), reinforcing agent 10~20 Part, 25~55 parts of fire retardant, 0.2~0.5 part of lubricant, 0.1~0.3 part of coupling agent, 0.1~0.3 part of antioxidant, the material because Fire retardant addition is larger and intensity is relatively low, and oil resistivity, heat resistance and scratch resistance are poor, limit it and fill in electric automobile Application on electric stake cable.
Electric automobile charging pile cable material will unavoidably use fire retardant because of the particularity of its use environment, and China is Jing becomes fire retardant big producing country, remains leading in many field halogen system flame retardants, although halogen fire proofing has superior Anti-flammability, but they burning when produce more smog and poisonous, mordant gas (hydrogen halides).These are poisonous Gas has serious harm to human respiratory tract and other organs, hinders the carrying out of disaster relief work, and their diffusion velocity is remote It is factor most dangerous in fire more than the diffusion velocity of flame.In the consideration of environmental protection, these years, phosphorus flame retardant is gradually Halogen system flame retardant is substituted, but phosphorus flame retardant still suffers from some shortcomings, such as poor heat resistance, volatility be big, compatibility is undesirable, and And have dropping to produce when burning etc..Nitrogenated flame retardant is related to melamine, melamine cyanurate, melamine methyl alcohol Condensation product, polyamide, polyimides, guanidinesalt, guanidine condensation product etc., and based on melamine and melamine cyanurate. At present, generally speaking, the fire resistance of nitrogenated flame retardant is not fine, is needed and other fire retardant compound uses.Three oxidations two Antimony because usage amount is low, synergy is widely used in fire retarding synergist fortunately, but the technique of antimony oxide have it is special Property, the heavy metals such as cadmium are inevitably introduced, there is harmful effect to environment, so, exploitation environmental protection, combination property are preferably fire-retardant Synergist is also following focus.
The content of the invention
The electric automobile charging pile private cable material of the present invention, with fire resistance is good, fire retardant addition is low, resistance to The advantages of heat, fire retardant low toxic and environment-friendly and cheap and easy to get, low cigarette, good mechanical property.
A kind of electric automobile charging pile cable material, the material composition is calculated by weight, and raw material includes:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
Low hydration zinc borate:10-15 parts,
Compatilizer:4 parts,
DMDPB:2-3 parts,
Wherein:
(1)The compatilizer is the mixture that maleic anhydride-g-SBS and maleic anhydride are grafted PE, wherein the maleic anhydride The weight ratio that Maleated SEBS is grafted PE with maleic anhydride is 1:2;
(2)The styrene series elastomer is each based block copolymer containing styryl structures unit of hub-and-spoke configuration, and The styrene contained in the styrene series elastomer is 3 with the weight ratio of butadiene:1.
Preferably, the low hydration zinc borate is 2ZnO3B2O35H2O.
Preferably, Li Jing≤2 μm of described 2ZnO3B2O35H2O.
Preferably, the particle diameter of described 2ZnO3B2O35H2O is 75nm.
Preferably, the nitrile rubber is nitrile rubber of the hydrogenation degree more than 99%.
Preferably, the TPU thermoplastic elastomer (TPE)s are polyester-type TPU.
Preferably, also including the antioxidant of 0.1-1 parts in material.
Preferably, the antioxidant is the mixture of antioxidant 1010 and irgasfos 168, wherein antioxidant 1010 and antioxygen The weight ratio of agent 168 is 1:2.
The method for preparing the electric automobile charging pile cable material, comprises the steps:
(1)Weighing:It is standby various materials accurately to be weighed according to composition;
(2)The SEBS, nitrile rubber, TPU thermoplastic elastomer (TPE)s, high density polyethylene (HDPE), equal benzene are added in high-speed mixer Polyimides, is stirred 5 minutes at 80 DEG C with 900 revs/min of rotating speed, adds low hydration zinc borate, compatilizer, DMDPB, Mixed material is obtained under conditions of mixing with 1000 revs/min at 100 DEG C;
(3)The mixed material obtained in step 2 is put into double screw extruder to carry out melt kneading and extrudes, extrusion temperature For 220 DEG C, screw speed is 550rpm;Again water cooling is carried out to the melting output of extruder die head extrusion, after making pellet Packaging is completed.
Specific embodiment
With reference to embodiment, the invention will be further described, and the mode of the present invention includes but are not limited to following examples.
Embodiment 1, the composition and weight of the electric automobile charging pile cable material of the present embodiment is as follows:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
2ZnO3B2O35H2O (particle diameter, 75nm):10 parts,
Compatilizer:4 parts,
DMDPB:1 part,
Antioxidant:0.2 part,
Wherein:
(1)The compatilizer is the mixture that maleic anhydride-g-SBS and maleic anhydride are grafted PE, wherein the maleic anhydride The weight ratio that Maleated SEBS is grafted PE with maleic anhydride is 1:2;
(2)It is mixture of the antioxidant 1010 with irgasfos 168, wherein antioxidant 1010 and irgasfos 168 that the antioxidant is Weight ratio be 1:2.
(3)The styrene series elastomer(SEBS)All kinds of blocks containing styryl structures unit for hub-and-spoke configuration are total to The styrene contained in polymers, and the styrene series elastomer is 3 with the weight ratio of butadiene:1.
(4)The nitrile rubber is nitrile rubber of the hydrogenation degree more than 99%, and the TPU thermoplastic elastomer (TPE)s are polyester-type TPU。
The method for preparing electric automobile charging pile cable material using above-mentioned material, comprises the steps:
(1)Weighing:It is standby various materials accurately to be weighed according to composition;
(2)The SEBS, nitrile rubber, TPU thermoplastic elastomer (TPE)s, high density polyethylene (HDPE), equal benzene are added in high-speed mixer Polyimides, is stirred 5 minutes at 80 DEG C with 900 revs/min of rotating speed, adds low hydration zinc borate, compatilizer, DMDPB, Antioxidant, under conditions of mixing with 1000 revs/min at 100 DEG C mixed material is obtained;
(3)The mixed material obtained in step 2 is put into double screw extruder to carry out melt kneading and extrudes, extrusion temperature For 220 DEG C, screw speed is 550rpm;Again water cooling is carried out to the melting output of extruder die head extrusion, after making pellet Packaging is completed.
Embodiment 2, the preparation method such as embodiment 1 of the electric automobile charging pile cable material of the present embodiment is different It is that its composition and weight are as follows:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
2ZnO3B2O35H2O (particle diameter, 75nm):10 parts,
Compatilizer:4 parts,
DMDPB:2 parts,
Antioxidant:0.2 part.
Embodiment 3, the preparation method such as embodiment 1 of the electric automobile charging pile cable material of the present embodiment is different It is that its composition and weight are as follows:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
2ZnO3B2O35H2O (particle diameter, 75nm):10 parts,
Compatilizer:4 parts,
DMDPB:3 parts,
Antioxidant:0.2 part.
Embodiment 4, the preparation method such as embodiment 1 of the electric automobile charging pile cable material of the present embodiment is different It is that its composition and weight are as follows:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
2ZnO3B2O35H2O (particle diameter, 75nm):5 parts,
Compatilizer:4 parts,
DMDPB:3 parts,
Antioxidant:0.2 part.
The preparation method of the electric automobile charging pile cable material of embodiment 5, the present embodiment such as embodiment 1 is different It is that its composition and weight are as follows:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
2ZnO3B2O35H2O (particle diameter, 75nm):15 parts,
Compatilizer:4 parts,
DMDPB:2 parts,
Antioxidant:0.2 part.
The preparation method of the electric automobile charging pile cable material of embodiment 6, the present embodiment such as embodiment 1 is different It is that its composition and weight are as follows:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
2ZnO3B2O35H2O (particle diameter, 75nm):15 parts,
Compatilizer:4 parts,
DMDPB:1 part,
Antioxidant:0.2 part.
The preparation method of the electric automobile charging pile cable material of comparative example 1, this comparative example such as embodiment 1 is different It is that its composition and weight are as follows:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
The mixture of poly cyanamid cyanurate and diethyl hypophosphites(1:1):40 parts,
Silicone master batch:3 parts,
Compatilizer:4 parts,
Antioxidant:0.2 part,
Smoke suppressant:4 parts.
(1)Described smoke suppressant is Firebrake ZB.
The preparation method of the electric automobile charging pile cable material of comparative example 2, this comparative example such as embodiment 1, its composition And weight is as follows:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
2ZnO3B2O35H2O (particle diameter, 2 μm):10 parts,
Compatilizer:4 parts,
DMDPB:2 parts,
Antioxidant:0.2 part.
The preparation method of the electric automobile charging pile cable material of comparative example 3, this comparative example such as embodiment 1, its composition And weight is as follows:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
2ZnO3B2O35H2O (particle diameter, 75nm):10 parts,
Compatilizer:4 parts,
Sb2O3:2 parts,
Antioxidant:1 part.
The composition of table 1, embodiment 1-6 and comparative example 1-3
SEBS Nitrile rubber TPU High density is gathered Ethene Benzene gathers Acid amides 2ZnO· 3B2O3· 5H2O(Particle diameter, 75nm) Compatilizer DMDPB Antioxidant Poly cyanamid cyanurate and two The mixing of ethyl hypophosphites Thing(1:1) 2ZnO· 3B2O3·5H2O (Particle diameter, 2 μm) Silicone master batch Smoke suppressant Sb2O3
Embodiment 1 20 10 15 15 15 10 4 1 0.2 0 0 0 0 0
Embodiment 2 20 10 15 15 15 10 4 2 0.2 0 0 0 0 0
Embodiment 3 20 10 15 15 15 10 4 3 0.2 0 0 0 0 0
Embodiment 4 20 10 15 15 15 5 4 3 0.2 0 0 0 0 0
Embodiment 5 20 10 15 15 15 15 4 2 0.2 0 0 0 0 0
Embodiment 6 20 10 15 15 15 15 4 1 0.2 0 0 0 0 0
Comparative example 1 20 10 15 15 15 0 4 0 0.2 40 0 3 4 0
Comparative example 2 20 10 15 15 15 0 4 2 0.2 0 10 0 0 0
Comparative example 3 20 10 15 15 15 10 4 0 1 0 0 0 0 2
The explanation of a part of content of table:
(1)Compatilizer described in table is the mixture that maleic anhydride-g-SBS and maleic anhydride are grafted PE, wherein the Malaysia The weight ratio that acid anhydrides Maleated SEBS is grafted PE with maleic anhydride is 1:2;
(2)It is mixture of the antioxidant 1010 with irgasfos 168, wherein antioxidant 1010 and antioxidant that antioxidant described in table is 168 weight ratio is 1:2.
(3)Styrene series elastomer described in table(SEBS)For hub-and-spoke configuration containing all kinds of embedding of styryl structures unit The styrene contained in section copolymer, and the styrene series elastomer is 3 with the weight ratio of butadiene:1.
(4)Nitrile rubber described in table is nitrile rubber of the hydrogenation degree more than 99%, and the TPU thermoplastic elastomer (TPE)s are poly- Ester type TPU.
(5)Smoke suppressant described in table is Firebrake ZB.
The indices and comparing result of table 2, embodiment 1-6 and comparative example 1-3
Relative to immediate documents CN201510516682, the invention has the beneficial effects as follows:
Documents are using phosphorus flame retardant diethyl hypophosphites and nitrogen system as composite flame-retardant agent, diethyl hypophosphites category In small molecule phosphorus flame retardant, its is volatile, not only makes processing environment be deteriorated, and easily separates out, and pollutes mould, and price also compares Costly.The present invention is using low hydration zinc borate as fire retardant, especially 2ZnOB2O3H2O, it is only necessary to which addition is lower Amount can just reach the flame retardant effect of CN201510516682 preferred embodiments.
Fire retarding synergist is 2,3- dimethyl -2,3- diphenyl butanes(DMDPB), with fire retardant in certain proportion Interior combination, can effectively reduce the consumption of fire retardant, very little to cable material mechanical impact, and overcome existing height The high shortcoming of effect synergist Sb2O3 lifes smoke.
Hydration zinc borate and DMDPB do not only have fire retardation, while there is suppression cigarette effect, the cable material of the present invention does not add yet Plus smoke suppressant, just reach the smoke suppressing effect of CN201510516682 preferred embodiments.Composition is relatively easy, reduces technique step Suddenly.Within the specific limits, we compared for the different impacts to smoke suppressing effect and other indexs of 2ZnOB2O3H2O particle diameters. It was found that selecting the little 2ZnOB2O3H2O smoke suppressing effects of particle diameter more preferable.

Claims (9)

1. a kind of electric automobile charging pile cable material, it is characterised in that by weight, the material each component includes:
SEBS:20 parts,
Nitrile rubber:10 parts,
TPU thermoplastic elastomer (TPE)s:15 parts,
High density polyethylene (HDPE):15 parts,
Equal benzene polyimides:15 parts,
Low hydration zinc borate:10-15 parts,
Compatilizer:4 parts,
DMDPB:2-3 parts,
Wherein:
The compatilizer is the mixture that maleic anhydride-g-SBS and maleic anhydride are grafted PE, wherein maleic anhydride grafting The weight ratio that SEBS is grafted PE with maleic anhydride is 1:2;
(2)Described SEBS for hub-and-spoke configuration each based block copolymer containing styryl structures unit, and the SEBS In the styrene that contains and the weight ratio of butadiene be 3:1.
2. electric automobile charging pile cable material as claimed in claim 1, it is characterised in that:Described low hydration zinc borate For 2ZnO3B2O35H2O.
3. electric automobile charging pile cable material as claimed in claim 2, it is characterised in that:Described 2ZnO Li Jing≤2 μm of 3B2O35H2O.
4. electric automobile charging pile cable material as claimed in claim 3, it is characterised in that:Described 2ZnO The particle diameter of 3B2O35H2O is 75nm.
5. electric automobile charging pile cable material as claimed in claim 4, it is characterised in that:The nitrile rubber is hydrogenation Nitrile rubber of the degree more than 99%.
6. electric automobile charging pile cable material as claimed in claim 5, it is characterised in that:The TPU thermoplastic elastics Body is polyester-type TPU.
7. electric automobile charging pile cable material as claimed in claim 6, it is characterised in that:Also include 0.1-1 in material The antioxidant of part.
8. electric automobile charging pile cable material as claimed in claim 7, it is characterised in that:The antioxidant is antioxidant 1010 with the mixture of irgasfos 168, wherein antioxidant 1010 and the weight ratio of irgasfos 168 are 1:2.
9. the method for preparing the electric automobile charging pile cable material as described in claim 1-8, it is characterised in that including as follows Step:
(1)Weighing:It is standby various materials accurately to be weighed according to composition;
(2)The SEBS, nitrile rubber, TPU thermoplastic elastomer (TPE)s, high density polyethylene (HDPE), equal benzene are added in high-speed mixer Polyimides, is stirred 5 minutes at 80 DEG C with 900 revs/min of rotating speed, adds low hydration zinc borate, compatilizer, DMDPB, Mixed material is obtained under conditions of mixing with 1000 revs/min at 100 DEG C;
(3)The mixed material obtained in step 2 is put into double screw extruder to carry out melt kneading and extrudes, extrusion temperature For 220 DEG C, screw speed is 550rpm;Again water cooling is carried out to the melting output of extruder die head extrusion, after making pellet Packaging is completed.
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