CN106398083A - Oil-resistant halogen-free flame retardant TPE (Thermo Plastics Elastomer) cable material and preparation method thereof - Google Patents
Oil-resistant halogen-free flame retardant TPE (Thermo Plastics Elastomer) cable material and preparation method thereof Download PDFInfo
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- C08L53/00—Compositions 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
- C08L53/02—Compositions 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
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- 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
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- 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
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- 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
- H01B3/42—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 polyesters; polyethers; polyacetals
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- 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
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Abstract
The invention relates to an oil-resistant halogen-free flame retardant TPE (Thermo Plastics Elastomer) cable material and a preparation method thereof. The oil-resistant halogen-free flame retardant TPE cable material is characterized by comprising the following components in parts by weight: 20 to 70 parts of styrene type thermoplastic elastomer, 2 to 15 parts of compatilizer, 10 to 30 parts of oil resistance and processability modifier, 10 to 50 parts of polyolefin elastomer, 5 to 25 parts of PP, 5 to 25 parts of PPO, 15 to 35 parts of fire retardant, 5 to 50 parts of extending oil, 0.2 to 5 parts of lubricating agent, and 0.2 to 2 parts of antioxygen, wherein the total of the content of the components is about 100 parts. The cable material provided by the invention is heat resistant, oil resistant, ageing resistant, excellent in combination property, and suitable for insulation sheathing materials of electric automobile-mounted charging cable or charging pile charging cable.
Description
Technical field
The present invention relates to a kind of polyurethane-modified flame-retardant thermoplastic elastomer electrical cable material and preparation method thereof.
Background technology
With the progressively exhaustion of the energy and going from bad to worse of environment, greatly developing new forms of energy has become the important of world community
Strategic objective.In recent years, new-energy automobile technology has become as Jiao of the pollution of automobile industry response environment and alleviating energy crisis
Point property technology, every country and global Ge great automobile vendor all put into the development that huge fund carries out new-energy automobile one after another.
Compare orthodox car, new-energy automobile possess low energy consumption, low noise, zero-emission and pollution-free the advantages of, it has also become the Chinese government
The industry paying high attention to and supporting energetically.Under intensive support on policy, new-energy automobile has sailed the track of fast development into.With
This simultaneously, the supporting basic electrically-charging equipment construction of new-energy automobile also becomes development priority.In the recent period, National Development and Reform Committee issues
《New-energy automobile charging infrastructure development guide (2015-2020)》, clearly propose to the year two thousand twenty, the whole nation is by newly-increased concentration
Formula electric charging station 1.2 ten thousand, distributing charging pile 4,800,000, to meet national 5,000,000 new-energy automobile charge requirement.Cut
To the end of the year 2014, electric charging station 780 is built together in the whole nation, and alternating current-direct current charging pile 3.1 ten thousand, for more than 120,000 new-energy automobiles
Charging and conversion electric service is provided.New-energy automobile is vehicle-mounted or charging pile charging cable as new-energy automobile electrically-charging equipment basic composition
Part, its performance has important impact to whole charging process.However, new-energy automobile charging cable is as New-style electrical wire
Cable, its use requirement is different from traditional electric wire.It not only needs to have not because of various for a long time severe natural environment
Impact and reduce reliability and the safety of charging cable, but also need to possess will not because frequently artificially bending, distortion, pull
Even automobile rolls and the phenomenon such as acid-base solution, detergent, gasoline, immersion of machine oil, and charging cable is caused mechanically and electrically
Gas damage thus affecting the performance of cable material, also will not longer because of the charge and discharge process time, usage frequency is high, load current
It is worth larger (maximum can arrive 400A), a large amount of heat collection party producing of conductor leads to electric cable heating, resistance to increase, thus forming temperature
Degree more high resistance is bigger, and the bigger heating of resistance is bigger, and bigger temperature of generating heat is higher, the shorter phenomenon of the higher cable life of temperature,
And reduce its thermostability, resistance to ag(e)ing and flame-retarding characteristic.Therefore, harsh service condition is required to meet new-energy automobile charging wire
Material must have an excellent characteristic, particularly high-temperature resistant grade, high electrical insulating properties, resistance to ozone aging, heat oxygen aging resistance, resistance to
Oiliness, anti-flammability etc..In addition, having halogen, low halogen cable material when there is fire, discharge poisonous, harmful gass and smog, harm
Human health and Environmental security, therefore meet the halogen-free flameproof of the relevant environmental regulations such as European Union's RoSH standard and REACH regulation
The standard having become as new forms of energy new-energy automobile charging wire requires.
Thermoplastic elastomer (TPE), i.e. TPE, both there is the processing characteristics of thermoplastic, there is the physical property of vulcanite again
Can, safety non-toxic, soft texture, comfortable feel, resilience are good, anti-wet and slippery, also have the characteristics that environmental protection.In addition based on SEBS's
TPE also has very high electrical insulating property, resistance to low temperature.Thermoplastic elastomer (TPE) is just progressively being applied to originally be pertaining only to vulcanite
Application.In the recent decade, the fast development of electronic apparatus, communication and automobile industry brings the height of thermoplastic elastomer (TPE)
Speed development, particularly some high-grade consumer electronicses fields, such as earphone cord, electric wire, power line etc..But existing thermoplasticity
Elastomer is comprehensive including the performances such as tear-resistant performance, ageing-resistant performance, heat resistance, oil resistance, thermostability, resistance to water
Close poor-performing, its application at present is confined to the less demanding field to above-mentioned combination property, and fills for as new-energy automobile
For the application higher to performance requirements such as tear-resistant performance, heat resistance and oil resistances such as electric wire, by existing thermoplastic
The deficiency of property elastomer performance itself, limits its development in this field.
CN104962029A discloses a kind of oil resistant TPE non-halogen flame-retardant cable and preparation method thereof, described CABLE MATERIALS bag
SEBS containing 20～50 weight portions, the PPO of 20～40 weight portions, the TPEE of 5～20 weight portions, the polyolefin of 10～25 weight portions
Resin, the plasticizer of 20～50 weight portions, the composite halogen-free fire retardant of 20～60 weight portions, the flame retardant of 1～8 weight portion, 1
The processing aid of～5 weight portions and 1～5 weight portion antioxidant.CABLE MATERIALS of the present invention can use as oil resistant cable coated material, gram
The shortcoming and the PPO system oil resistivity that have taken SEBS/PP blending class TPE elastomer system oil resistivity difference are poor, resistance to cracking difference
Shortcoming, the product flexibility obtaining, resistance to sudden heating, intensity, percentage elongation, fire resistance aspect have very excellent comprehensive
Energy.But this material is low due to adding excessive PPO, tearing strength, is not suitable for new-energy automobile charging wire, with this kind of material
Prepared new-energy automobile charging wire can split through pulling repeatedly in use, there is potential safety hazard.
CN105419085A discloses 125 DEG C of Flame-Retardant and Oil-Resistant thermoplastic elastomer electric wire and cable material of heatproof and its preparation side
Method；This wire cable material is made up of following raw material：Thermoplastic elastomer (TPE), soften plasticizer, acrylic resin, oil resistant modifying agent,
Compatilizer, filler, fire retardant, antioxidant, light stabilizer and lubricant；Thermoplastic elastomer (TPE) is to account for mass percent for 20-
40% high molecular SEBS and the mixture accounting for the phenolic resin curative TPV that mass percent is 60-80%；Oil resistant modifying agent
For at least one in nitrile rubber, acrylate rubber and polyurethane elastomer；The material that the present invention makes is in 125 DEG C high temperature
Lower deformation rate is 18 23%；It is soaked in IRM903# oil after 168h at 60 DEG C, material mechanical performance rate of change is 15 simultaneously
Between 20%；Excellent fireproof performance, reaches 1.6mmULV0 level, completes to meet the rigors to TPE material for the UL62.But
TPV mechanics poor-performing itself, the TPV tensile strength of hardness 85A is only capable of reaching 12Mpa, and TPV belongs to a kind of dumb light material
Material, surface cloudy surface it is impossible to reach TPE-S surface-brightening, the fine and smooth soft degree of feel, tensile strength is not high, is not suitable for new energy
Source automobile charge cable material.
CN105330990A discloses a kind of insulant for new-energy automobile charging pile cable and preparation method thereof,
The component of its weight portion includes：Ethylene propylene diene rubber 80-90 part, ethylene-octene copolymer 10-20 part, cumyl peroxide
3-4 part, Triallyl isocyanurate 1-2 part, zinc oxide 8-10 part, modified calcinated argil 80-120 part, no asbestos Pulvis Talci
10-50 part, 2 mercapto benzimidazole 2-3 part, paraffin 8-12 part, vaseline 2-5 part, stearic acid 0.5-1.5 part, vinyl three
('beta '-methoxy ethyoxyl) silane 1-2 part.This invention makes material modified there is high insulation resistance, resistance to song by way of sulfuration
Scratch, resistance to ozone aging, heat oxygen aging resistance the features such as, but not fire-retardant, brightless exquisiteness, tensile strength low it is impossible to reach benzene second
The smooth exquisiteness degree of alkenes and polyurethane-type thermoplastic elastomer and mechanical property, and technique poor reproducibility, are not suitable for new
Energy automobile charge cable material.
In above-mentioned being related to and modified TPE pertinent literature, generally existing can only meet new-energy automobile charge cable to be made
With the partial properties index requiring, and reach comprehensive meet performance indications, have simultaneously high-tensile, high-tear strength,
125 DEG C of grades of heatproof, good, the resistance to gasoline of ageing-resistant performance, machine oil are good, material reaches halogen-free flameproof V0 grade cable and reaches VW-1
Grade, then almost do not have, thus constraining its application in new-energy automobile charge cable.
Content of the invention
For the problems of the prior art, the invention aims to provide a kind of oil resistant halogen-free flameproof TPE cable material and
Its preparation method.
In order to achieve the above object, the technical scheme is that：A kind of oil resistant halogen-free flameproof TPE cable material, its feature
It is, comprise following component by weight：
Above-mentioned each constituent content sum is about 100 parts.
Further, described styrene series elastomer is the block copolymer containing styryl structures unit, mainly comprises
SBS, SIS, SEBS, SEPS, the weight portion of described thermoplastic elastomer (TPE) is 20-70 part.
Further, described compatilizer is SEBS grafted maleic anhydride, SEBS-g-GMA, hydrogenated styrene block thermoplasticity
Polyurethane copolymer (SEBS-g-TPU), the weight portion of affiliated compatilizer is 2-15 part.
Further, described oil resistant and processing characteristics modifying agent have high oil resistivity and processability for polyurethane, TPEE etc.
The excellent resin of energy, the weight portion of affiliated oil resistant and processing characteristics modifying agent is 10-30 part.
Further, described ethylene octane copolymer is ethylene-octene copolymer elastomer, ethylene-butene copolymer bullet
Gonosome, ethylene-propylene copolymer elastomer, the weight portion of described polyolefin elastomer is 10-50 part.
Further, described PP resin, melt index is 0.5-50g/10min, and the weight portion of affiliated PP is 5-25 part.
Further, described PPO resin, intrinsic viscosity 33-45cm3/g.The weight portion of described PPO is 5-25 part.
Further, described halogen-free flame retardants is the mixture of nitrogen system bittern-free fire retardant and phosphorus series non-halogen fire retardant, weight
Number is 15-35 part, and in this mixture, the weight percent content of described nitrogen system bittern-free fire retardant is 50-90%, described
The weight percent content of phosphorus series non-halogen fire retardant is 10-70%.
Further, described nitrogen system bittern-free fire retardant is tripolycyanamide, dicyandiamide, melamine cyanurate, melamine
Amine Quadrafos, described phosphorus series non-halogen fire retardant is phosphate, phosphinate or hypophosphites, phenyl hypophosphites, dioxane
Base phosphinates.
Further, described filling oil is environment-friendly type technical white oil and/or naphthenic oil.The weight portion of described filling oil is 5-50
Part.
Further, described lubricant is Tissuemat E, zinc stearate, silicone or organic silicone master batch, described lubricant
Weight portion be 0.2-5 part.
Further, described antioxidant is that β-(3,5- di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester is (anti-
1076), four [β-(3,5- di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester (anti-1010), three [2.4- di-tert-butyls
Base] phosphite ester (anti-168), N, N'- is double-(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine (anti-1098)
One of or two or more, the weight portion of described antioxidant is 0.2-2 part.
A kind of preparation method of oil resistant halogen-free flameproof TPE cable material, comprises the following steps：
1) various raw materials are got out according to percentage by weight composition；
2), after styrene series elastomer being mixed and stirred for uniformly with filling oil, 12～30 hours are stood；
3) add remaining raw material, in high-speed mixer and mixing 5-15min, obtain mixing material；
4) mixing material is put into and carry out melt kneading in double screw extruder and extrude, extrusion temperature is 180～230
DEG C, screw speed is 200～600rpm；
5) the melting output of extruder die head extrusion is cooled down, make pellet, as a kind of oil resistant halogen-free flameproof
TPE cable material.
Compared with prior art, it is an advantage of the current invention that：
1. a kind of oil resistant halogen-free flameproof TPE cable material of the present invention is with styrene series elastomer and polyolefin resin as base
Material, ensureing the original excellent machinability of thermoplastic elastomer (TPE) and while physical property, has that intensity is high, good bullet
Property, bend resistance and tear resistance.In shore hardness 70～90A, its tensile break strength >=17MPa, elongation at break reaches
To more than 550%, tearing toughness >=50kN/m.
2. the TPE composite modification material of the present invention is changed by compound use oil resistant modifier and the resistance to oleoresin of heatproof
Property agent, has high oil resistance.The cable that this thermoplastic elastomer (TPE) is made is soaked in gasoline, diesel oil and IRM902# oil respectively
In after 23 DEG C × 20h, outside diameter of cable rate of change, within 15%, is soaked in ASTM2# 60 DEG C × 168h of oil, maximum mechanical property
Rate of change is less than 20%.
3. the TPE composite modification material of the present invention is changed by compound use heatproof modifier and the resistance to oleoresin of heatproof
Property agent, has high temperature resistant deformation nature.Caloric deformation rate after 158 DEG C × 1h, within ＜ 50%, ageing-resistant in 150 DEG C × 240h
Afterwards, maximum mechanics performance change rate is less than 20%.
4. the TPE composite modification material of the present invention has environment protection high flame resistance performance, meets European Union's RoSH standard and REACH method
The relevant environmental regulations such as rule (meet No. 1907/2006 REACH regulation of European Union, RoHS Directive 2011/65/EU annex
The limit value of II revision directive (EU) 2015/863 requires and meets EU criteria EN50620 to require), the fire-retardant index reached of its material
To UL94V0 rank, the fire-retardant index of cable reaches VW-1 grade.
5. the TPE composite modification material of the present invention be provided simultaneously with high-tensile, high-tear strength, 125 DEG C of grades of heatproof,
Good, the resistance to gasoline of ageing-resistant performance, machine oil are good, high fire-retardance, low be fuming, the feature of low VOC, be a kind of new new-energy automobile
Charging wire cable resin, being suitable for producing hardness is the various new-energy automobile charging pile cables of 70～90A, new-energy automobile
Vehicle-mounted charge line cable, compares that traditional TPE mixing material is more environmentally-friendly and safety, meets ISO6722 standard comprehensively.
Specific embodiment
With reference to embodiment, the present invention is further described.
Comparative example 1
Oil resistant and processing characteristics modifying agent is not contained with differing only in of embodiment 1 in comparative example 1.
Comparative example 2
Do not contain compatilizer with differing only in comparative example 2 of embodiment 1.
Comparative example 3
Do not contain nitrogen system bittern-free fire retardant with differing only in comparative example 3 of embodiment 1, contain only phosphorus series non-halogen fire-retardant
Agent.
Comparative example 4
Do not contain phosphorus series non-halogen fire retardant with differing only in comparative example 4 of embodiment 1, contain only nitrogen system bittern-free fire-retardant
Agent.
Embodiment 1～6 is identical with comparative example 1～4 preparation method, and it comprises the following steps：
1) SEBS and filling oil are put into according to formula proportion and in low-speed mixer, stir 3min, stand-by after standing 12h, make
The abundant oil suction of SEBS is swelling；
2) oil-filled SEBS and other raw material are mixed 5min in high mixed device, obtain compound；
3) mixing material is put into and carry out melt kneading in double screw extruder and extrude, each section of temperature of twin screw is：
160～175 DEG C of feeding section, 180～190 DEG C of transportation section, 195～210 DEG C of melt zone, 190～200 DEG C of shearind section, mouth mold segment 180
～185 DEG C, 170～180 DEG C of head, water cooling bracing pelletizing, airpillow-dry is obtained TPE composite modification material.
Halogen-free flameproof TPE cable material in embodiment 1-6 and comparative example 1-4 is first dried 1-2h at 90 DEG C, then using note
Molded mechanism test bars, after room temperature sufficient stabilization, carry out properties test, test result is as shown in the table：
Embodiment 1～6 and comparative example 1～4 are carried out with performance detection, and to obtain result as shown in the table：
Known to upper table：A kind of oil resistant halogen-free flameproof TPE cable material of the present invention, compared to comparative example 1 and comparative example 2,
Due to employing oil resistant and processing characteristics modifying agent and compatilizer, the oil resistivity of the composite modified material of TPE, thermostability, resistance to ag(e)ing
It is significantly better than that comparative example 1 and comparative example 2 etc. performance.Compared to comparative example 3-4, the flame retardant effect of compound flame retardant is substantially better than
It is used alone nitrogen, phosphorus fire retardant.The cable that thermoplastic elastomer (TPE) of the present invention is made is soaked in gasoline, diesel oil and IRM902# respectively
After 23 DEG C × 20h in oil, outside diameter of cable rate of change is within 10%；It is soaked in ASTM2# 60 DEG C × 168h of oil, maximum mechanical property
20% can be less than by rate of change；Caloric deformation rate after 158 DEG C × 1h, within ＜ 50%；Heat ageing is after 150 DEG C × 240h, maximum
Mechanical property rate of change is less than 20%.Modified TPE mixing material obtained by embodiment 1-8, its tensile strength >=17MPa, breaks
Split percentage elongation and reach more than 550%, tearing toughness >=50kN/m, halogen-free flameproof performance reaches UL94V0 grade, meets comprehensively
ISO6722 standard, consolidated statement reveals excellent performance.
The present invention illustrates formula and the preparation method of the present invention by above-described embodiment, but the invention is not limited in
State formula and processing step, that is, do not mean that the present invention has to rely on above-mentioned formula and processing step could be implemented.Affiliated technology
The technical staff in field is it will be clearly understood that any improvement in the present invention, the equivalence replacement to raw material selected by the present invention and auxiliary
The interpolation of composition, selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and disclosure.
All simple deformation made in the case of without departing from core of the present invention or modification each fall within the protection of the present invention
Scope.
Claims (12)
1. a kind of oil resistant halogen-free flameproof TPE cable material is it is characterised in that comprise following component by weight：
Above-mentioned each constituent content sum is about 100 parts.
2. a kind of oil resistant halogen-free flameproof TPE cable material according to claim 1 is it is characterised in that described polystyrene
Elastomer is the block copolymer containing styryl structures unit, mainly comprises SBS, SIS, SEBS, SEPS, described thermoplastic elastomehc
The weight portion of gonosome is 20-70 part.
3. a kind of oil resistant halogen-free flameproof TPE cable material according to claim 1 is it is characterised in that described compatilizer is
SEBS grafted maleic anhydride, SEBS-g-GMA, hydrogenated styrene block thermoplastic polyurethane's copolymer (SEBS-g-TPU), affiliated
The weight portion of compatilizer is 2-15 part.
4. a kind of oil resistant halogen-free flameproof TPE cable material according to claim 1 it is characterised in that described oil resistant and plus
Work performance modifier has high oil resistivity and excellent resin, affiliated oil resistant and the processability of processing characteristics for polyurethane, TPEE etc.
The weight portion of energy modifying agent is 10-30 part.
5. a kind of oil resistant halogen-free flameproof TPE cable material according to claim 1 is it is characterised in that described TPO
Elastomer is ethylene-octene copolymer elastomer, ethylene-butene copolymer elastomer, ethylene-propylene copolymer elastomer, institute
The weight portion stating polyolefin elastomer is 10-50 part.
6. a kind of oil resistant halogen-free flameproof TPE cable material according to claim 1, it is characterised in that described PP resin, melts
Melting index is 0.5-50g/10min, and the weight portion of affiliated PP is 5-25 part.
7. a kind of oil resistant halogen-free flameproof TPE cable material according to claim 1 is it is characterised in that described PPO resin,
Intrinsic viscosity 33-45cm3/g.The weight portion of described PPO is 5-25 part.
8. a kind of oil resistant halogen-free flameproof TPE cable material according to claim 1 is it is characterised in that described halogen-free flameproof
Agent is the mixture of nitrogen system bittern-free fire retardant and phosphorus series non-halogen fire retardant, and parts by weight are 15-35 part, in this mixture, described
The weight percent content of nitrogen system bittern-free fire retardant be 50-90%, the percentage by weight of described phosphorus series non-halogen fire retardant contains
Measure as 10-70%.
9. a kind of oil resistant halogen-free flameproof TPE cable material according to claim 8 is it is characterised in that described nitrogen system bittern-free
Fire retardant is tripolycyanamide, dicyandiamide, melamine cyanurate, melamine polyphosphate, and described phosphorus series non-halogen is fire-retardant
Agent is phosphate, phosphinate or hypophosphites, phenyl hypophosphites, dialkylphosphinic salts.
10. a kind of oil resistant halogen-free flameproof TPE cable material according to claim 1 is it is characterised in that described filling oil is ring
Guarantor's type technical white oil and/or naphthenic oil.The weight portion of described filling oil is 5-50 part.
A kind of oil resistant halogen-free flameproof TPE cable material 11, a kind of oil resistant halogen-free flameproof TPE cable material according to claim 1,
It is characterized in that, described lubricant is Tissuemat E, zinc stearate, silicone or organic silicone master batch, the weight of described lubricant
Amount part is 0.2-5 part.
A kind of 11. oil resistant halogen-free flameproof TPE cable material according to claim 1 are it is characterised in that described antioxidant is
β-(3,5- di-tert-butyl-hydroxy phenyl) propanoic acid positive octadecanol ester (anti-1076), four [β-(3,5- di-t-butyl -4- hydroxyls
Phenyl) propanoic acid] pentaerythritol ester (anti-1010), three [2.4- di-tert-butyl-phenyl] phosphite ester (anti-168), N, N'- is double-(3-
(3,5- di-tert-butyl-hydroxy phenyl) propiono) one of hexamethylene diamine (anti-1098) or two or more, described antioxidant
Weight portion is 0.2-2 part.
A kind of 12. preparation methoies of oil resistant halogen-free flameproof TPE cable material are it is characterised in that comprise the following steps：
1) various raw materials are got out according to percentage by weight composition；
2), after styrene series elastomer being mixed and stirred for uniformly with filling oil, 12～30 hours are stood；
3) add remaining raw material, in high-speed mixer and mixing 5-15min, obtain mixing material；
4) mixing material is put into and carries out melt kneading in double screw extruder and extrude, extrusion temperature is 180～230 DEG C,
Screw speed is 200～600rpm；
5) the melting output of extruder die head extrusion is cooled down, make pellet, as a kind of oil resistant halogen-free flameproof TPE electricity
Cable material.
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