CN103965575B - Charging electric motor vehicles electric wire material and preparation method thereof - Google Patents
Charging electric motor vehicles electric wire material and preparation method thereof Download PDFInfo
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- CN103965575B CN103965575B CN201410204579.3A CN201410204579A CN103965575B CN 103965575 B CN103965575 B CN 103965575B CN 201410204579 A CN201410204579 A CN 201410204579A CN 103965575 B CN103965575 B CN 103965575B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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Abstract
The invention discloses a kind of charging electric motor vehicles electric wire material and preparation method thereof, plasticity elastomeric soft materials and white oil are added in high-speed mixer, stirring make white oil by full and uniform absorption, then by polyolefine material, be sequentially added in high-speed mixer mixing through Halogenless composite fire retardant, 0～20 part of carbon forming agent, smoke suppressant, antioxidant, lubricant, anti-wear agent, coupling agent, bulking agent of activation processing；The material that mixture is good is transferred to reactive double screw extruder hopper, and under 150～250 DEG C of processing temperatures, melt blending extruding pelletization, obtains product.Fire-resistant wire composite prepared by the present invention has low smoke, zero halogen, soft easily curling, surface abrasion resistance damage, easily processed into type, the advantage of recoverable, can meet the use requirement of current power automobile charged electrical wire material very well.
Description
Technical field
The present invention relates to a kind of charging electric motor vehicles electric wire material and preparation method thereof.
Background technology
Nearly 30 years, World Economics high speed development, the environmental protection problem simultaneously making facing mankind was increasingly serious.Entirely
Ball auto industry field, the pollution caused due to vehicle exhaust causes people's extensive concern, to the research and development of new-energy automobile with
Popularization obtains many countries and payes attention to, and automobile vendor of many developed countries releases the electric automobile of different brands successively, simultaneously at this
Vehicle charging station is built to meet the needs of growing electric automobile market in the range of state.And current, used for electric vehicle fill
Electricity electric wire material the most still selects Halogen PVC base as its electric wire sheath material, although this kind of charging electric wire good insulating,
Surface abrasion resistance and price are relatively low, but owing to its burning can discharge the hydrogen chloride gas of severe toxicity, have bigger disaster hidden-trouble,
The biggest potential threat is there is in this during using for many electric automobile users.At present, although also have other materials many
It is exploited for charging electric vehicle electric wire material, such as, includes polyolefin cross-linked material, vulcanized rubber material, elastomeric material
Release Deng constantly, but be not the most fully achieved it and low smoke, zero halogen, soft easily curling, surface abrasion resistance are damaged, are easily processed into
The requirement of type, recoverable etc..
Summary of the invention
It is an object of the invention to provide a kind of low smoke, zero halogen, soft easily curling, surface abrasion resistance damage, easily processed into type,
Charging electric motor vehicles electric wire material of recoverable and preparation method thereof.
The technical solution of the present invention is:
A kind of charging electric motor vehicles electric wire material, is characterized in that: be made up of the raw material of weight components:
Plasticity elastomeric soft materials 100 parts
Plasticity elastomeric soft materials of the present invention is powdered hydrogenated (styrene butadiene styrene) block
Copolymer (SEBS), its molecular weight is 8～280,000, and the ratio of phenylethylene/butadiene is 2:8 to 4:6, density be 0.85～
0.95.Preferably SEBS molecular weight is 10～250,000.
White oil of the present invention is technical grade paraffin oil obtained in petroleum cracking process, and flash-point is 200～250
DEG C, at 40 DEG C, kinematic viscosity is 30～150cSt, and density is 0.8～0.9.Preferably white oil flash-point is 200～230 DEG C, motion
Viscosity (40 DEG C) is 40～80cSt.
Polyolefine material of the present invention is polyethylene (PE), polypropylene (PP), ethylene octene random copolymer
(POE), the one of which of ethylene, propylene random copolymer (POP), or any complex of above several material；Its melted finger
Number is 2～30g/10min (230 DEG C, 2.16kg), and Mooney viscosity ML1+4 (121 DEG C) is 3～45.
Halogenless composite fire retardant of the present invention is the super fine magnesium hydroxide (MDH) of organic modification of surface, hydrogen-oxygen
Change the inorganic combustion inhibitors such as aluminum (ATH), hydrated magnesium silicate or potter's clay and APP (APP), melamine salt, polyphosphazene or phosphoric acid
The mixture of the on-liquid class phosphonium flame retardants such as ester.Preferably inorganic combustion inhibitor be surface through organically-modified, grain size≤3 μm
Magnesium hydroxide.Preferably phosphonium flame retardant is phenoxy group polyphosphazene, and its heat decomposition temperature >=300 DEG C, molecular structure can be adopted
Represent with following general structure:
Wherein, n is the degree of polymerization, is the positive integer between 3～30.
Carbon forming agent of the present invention is Merlon (PC), polyphenylene ether (PPO), epoxy resin or phenolic resin
A kind of.Preferably carbon forming agent is the polyphenylene ether of intrinsic viscosity 0.3～0.5cm3/g, and its molecular weight is 2～60,000, and vitrification turns
Temperature >=210 DEG C, can use following structural formula to represent:
Wherein, it is the positive integer between 150～500.
Smoke suppressant of the present invention is the one of Firebrake ZB, ammonium octamolybdate, molybdenum dioxide, stannum oxide, preferably presses down
Fumicants is ammonium octamolybdate.
Composite antioxidant of the present invention is antioxidant 1010 and irgasfos 168, anti-oxidant DLTP or antioxidant
The binary mixture of DSTP.
Lubricant of the present invention is erucyl amide, oleamide or stearic amide, and this amide-type lubricant is also
Can use simultaneously as dispersant.
Anti-wear agent of the present invention is the nano silicon of surface organic modification.
Coupling agent of the present invention is silane coupler, specifically can select amino silicane coupling agent or vinyl silicon
Alkane coupling agent.
Bulking agent of the present invention is ethylene vinyl acetate copolymer (EVA), the poly-second of maleic anhydride grafting
The polypropylene of alkene, maleic anhydride grafting, the POE of maleic anhydride grafting, the ethylene, propylene of maleic anhydride grafting
Copolymer or hydrogenation (styrene butadiene styrene) block copolymer of maleic anhydride grafting.Above-mentioned preferred bulking agent is
Percent grafting is maleic anhydride grafting hydrogenation (styrene butadiene styrene) block copolymer of 1.2～1.5%.
Preparation method is as follows, and following material addition all represents with parts by weight:
The plasticity elastomeric soft materials of 100 parts and 50～300 parts of white oils being added in high-speed mixer, high-speed stirred makes
White oil by full and uniform absorption, then by the polyolefine material of 50～200 parts, 50～200 parts of Halogenless composite fire retardants, 0～20
Part carbon forming agent, the smoke suppressant of 0～3 part, the antioxidant of 0.5～1.0 part, the lubricant of 0.3～3.0 part, 2～8 parts wear-resisting
Agent, the coupling agent of 0～2.0 part, the bulking agent of 0～5 part are sequentially added in high-speed mixer, utilize mixer high speed rotating and
Frictional heat so that it is a various material reaches uniformly to mix and dispersion.Mixed material is transferred to reactive double by high mixer
The hopper of screw extruder, melt blending extruding pelletization under the processing temperature of 150～250 DEG C, it is thus achieved that eco-friendly available
Composite in charging electric vehicle electric wire.This kind advanced composite material (ACM) is easily processed into type, extruded velocity fast, forming temperature
Low, recoverable, is the newly selected of replacement PVC base charging electric vehicle electric wire.
One of main raw material(s) of the present invention hydrogenation (styrene butadiene styrene) block copolymer
(SEBS) industrialized production introducing to the market, rises including section of the U.S., the company such as Kuraray, Taiwan rubber, Sinopec,
Its all trade mark naval stores all have sale in Chinese market, and material selection range is big, price rather moderate.And institute in the present invention
Another main raw material(s) technical grade paraffin oil used, for petroleum cracking process gained, petrochemical industry relevant enterprise is equal at home
There is production marketing, and cheap, it acts not only as plasticising lubricant with rubber mix and uses, and also reduces material simultaneously
Material totle drilling cost.Using high-speed mixer in the present invention, be sufficiently mixed with rubber by white oil and absorbed, both ratios can be according to
The final hardness regulation of designed material, increases the oil-filled amount of rubber and can lower material hardness, and the biggest hardness of oil-filled ratio is the lowest,
Otherwise hardness is the highest, its range of accommodation is the broadest.Anti-wear agent nano silicon is pre-dispersed in white oil by the present invention,
Thus effectively prevent the reunion caused owing to the specific surface energy of nanometer grade silica is relatively big and be difficult to scattered difficulty, with
Time avoid the phenomenons such as the excessive flow difficulties caused of course of processing melt viscosity the most accordingly.
Halogenless composite fire retardant employed in the present invention is polyphosphazene and super fine magnesium hydroxide complex, magnesium hydroxide table
Face, through organic modification, improves dispersibility；Phosphonium flame retardant uses phenoxy group polyphosphazene.Preferably carbon forming agent is polyphenylene oxide tree
Fat (PPO), by regulation fire retardant, the adding proportion of carbon forming agent, gives full play to each component synergism so that it is reach efficiently to hinder
The purpose of combustion.
Preparation method employed in the present invention is that one-step method melt extrudes, and whole production process the most easily operates, and
Processing temperature is relatively low, and actual temperature is less than 210 DEG C, energy efficient.The extruder that preparation process is used is twin screw list screw rod
Two steps type extruder, the screw rod module of double screw extruder uses the fit system of " banburying shearing banburying " to carry out alternate group
Closing, preferred screw slenderness ratio is >=52.All raw material is after high-speed mixer mixes, by shearing and the banburying of twin screw
Dual function, reaches molecular level and fusion purpose, then conveying through single screw rod is blended, finally carry out air-cooled rear pelletizing, made
The flame-proof composite material got ready.Whole production process is for once to complete, and material is without tank refrigerating work procedure, without being dried after pelletizing
Can directly carry out packaging warehouse-in.
In the present invention, the fire-resistant wire material subsequent machining technology of preparation is simple and convenient, it is not necessary to cross-link ring complicated with sulfuration etc.
Joint, completely can machine-shaping on tradition PVC base electric wire extruder, it is to avoid the reinvestment of equipment, has saved cost；And
Easily carry out after materials'use reclaiming and again with, also save the energy.Owing to this material flowability is good, extruded velocity is fast,
The extrusion that can reach 100 meters/more than min during wall thickness 0.5～2.0mm becomes linear velocity, has higher production efficiency.
The electric wire material low smoke, zero halogen of preparation in the present invention, after extrusion becomes line, flame retardant test can reach VW 1 grade.Preparation
Charging electric wire particularly soft, be easily curled into dish, this is carried out after being conducive to terminal use to use inside electric automobile
Curling is laid.Meanwhile, its surface abrasion resistance can be excellent, effectively prevent its use process because pulling the damage that friction causes
Wound.
Below in conjunction with embodiment, the invention will be further described.
Detailed description of the invention
Technical scheme will be described in more details by the present invention by the following specific embodiments, but this
Invention is not limited to specific embodiment proposed below.
In the present invention, the information such as the trade mark of main raw material(s), physical index used by following example and comparative example is listed in table 1
In:
Table 1
| Material | The material information described in detail |
| SEBS‐Ⅰ | Ke Teng company: trade mark G1654, S/B=31/69, molecular weight 180,000 |
| SEBS‐Ⅱ | Ke Teng company: trade mark G1650, S/B=30/70, molecular weight 110,000 |
| Paraffin oil | The double dragon of Korea S: trade mark N250, viscosity 45cSt, flash-point 220 DEG C |
| PP | Korea S SK: trade mark R370Y, hardness 65D, melting means 18g/10min |
| POP‐Ⅰ | Mobil: the trade mark 3980, hardness 86A, intensity 19.8Mpa, melting means 8g/10min |
| POP‐Ⅱ | Mobil: the trade mark 6202, hardness 61A, intensity 9.5Mpa, melting means 20g/10min |
| TPU | Yantai ten thousand China: trade mark WHT 1190, hardness 90A, intensity 37Mpa, stretches rate 440% |
| TPV | U.S.'s santoprene: the trade mark 201 80, hardness 86A, intensity 11Mpa, stretches rate 420% |
| Polyphosphazene | Zibo indigo plant print chemical industry: hexaphenoxycyclotriphosphazene, phosphorus content 14%, nitrogen content 8% |
| MDH‐Ⅰ | Albemarle Corporation of Germany: trade mark H7, particle diameter≤3 μm |
| MDH‐Ⅱ | Albemarle Corporation of Germany: trade mark H7C/2, surface is through organic modification |
| Carbon forming agent I | Japan ASAHI company: PPO, trade mark S201A, intrinsic viscosity 0.4cm3/g |
| Carbon forming agent II | Japan Supreme Being people: PC powder, trade mark L 1250Y, density 1.2g/cm3 |
| Nanosized SiO_2 | Goldschmidt chemical corporation: gas phase sio2, trade mark AEROSIL R202, silane-modified |
| Ammonium octamolybdate | MCA company of the U.S., average particle diameter size≤2 μm, decomposition temperature >=280 DEG C |
| 1010 | Ciba: CAS No:6683 19 8, fusing point 110～125 DEG C |
| DSTP | Taiwan double bond chemical company: fusing point 63～68 DEG C |
| Erucyl amide | The sky, Sichuan chemical company: CAS No:112 84 5, fusing point 80 DEG C |
| SEBS‐g‐MA | Ke Teng company: trade mark FG1901X, melting means 7g/10min, MA percent grafting 1.3% |
In embodiment described below and comparative example, composite uses double screw extruder to prepare.Selection rate of feeding is
15Hz, engine speed 300rpm, melt blending extruding pelletization under the processing temperature of 180～200 DEG C, obtain one and can be used for electricity
The composite flame-proof material of electrical automobile charging electric wire.Finally utilize general PVC electric wire extrusion equipment to carry out extrusion and become line, set electric wire
Extruder temperature 190 DEG C, squeezes linear velocity 80～100 meters/min, and electric wire is outer by wall thickness about 0.5mm.
Specific embodiment 1～5 and corresponding comparative example formula composition be listed in respectively in table 2 and table 3:
Table 2
Table 3
Plasticity elastomeric soft materials and white oil being added in high-speed mixer, high-speed stirred makes white oil by full and uniform suction
Receive, then by polyolefine material, Halogenless composite fire retardant, carbon forming agent, smoke suppressant, antioxidant, lubricant, anti-wear agent, coupling
Agent, bulking agent are sequentially added in high-speed mixer, utilize high speed rotating and the frictional heat of mixer so that it is a various material reaches
To uniformly mixing and dispersion.Mixed material is transferred to by high mixer the hopper of reactive double screw extruder, 150～
Melt blending extruding pelletization under the processing temperature of 250 DEG C, it is thus achieved that eco-friendly can be used for the compound of charging electric vehicle electric wire
Material.
A kind of charging electric motor vehicles electric wire material obtained in above example and comparative example, its Mechanics Performance Testing is equal
Using ASTM D638 89 standard to carry out at 23 DEG C, draw speed selects 500mm/min；Fire resistance test uses the U.S.
UL94 vertical combustion testing standard, the elongate in shape of burning specimen in use a size of 125mm × 12.5mm × 6.0mm；Heat ageing
Performance uses GB/T2951.2 testing standard, and aging condition is the test result of aging 168 hours at 136 ± 2 DEG C.More than test
Condition is in addition to flame retardant test, and the test after this material extrusion becomes line is also suitable for.Charge after extrusion electric wire flame retardant test use
UL1581,1080VW 1 vertical combustion standard.Electric wire resistance to precipitation test condition: 85 DEG C of constant humidity 85 of constant temperature, places 168 hours.Electricity
Line thermal shock test condition: after electric wire is placed 1 hour at 150 DEG C, be cooled to room temperature, observes wire surface with or without cracking.Electric wire
Wear-resistant test: carry out according to test condition wear-resisting in electric wire UL1581.
The key property test of the electric wire composite that the present invention is above-mentioned uses t1 to represent, ageing properties test uses t2 table
Showing, the test of UL94 vertical combustion uses t3 to represent.Concrete method for expressing: density (g/cm3) uses t1 I to represent, hardness (shore
A) using t1 II to represent, melt index (g/10min) uses t1 III to represent, hot strength (Mpa) uses t1 IV to represent, disconnected
Splitting percentage elongation (%) uses t1 V to represent；Strength retention (%) after aging uses t2 I to represent, aging after extension at break
Conservation rate (%) uses t2 II to represent.
The present invention above-mentioned extrusion charging electric wire Mechanics Performance Testing use T1 represent, wherein: hot strength (Mpa) use
T1 I represents, elongation at break (%) uses T1 II to represent；Ageing properties test uses T2 to represent, wherein: the intensity after aging
Conservation rate (%) use T2 I represent, aging after extension at break conservation rate (%) use T2 II represent；UL1581VW 1 is vertical
Burning uses T3 to represent, the resistance to test employing T4 that separates out represents, thermal shock test uses T5 to represent, surface abrasion resistance damages test and uses T6
Representing, electric wire is apparent and texture uses T7 to represent.
In the above embodiments 1～5 of the present invention, the test result of product is listed in the requirement of performance indications and reference standard
In table 4.
The test result of product and performance indications and the requirement of reference standard in the comparative example C 1～C 5 that the present invention is above-mentioned
It is listed in Table 5.
The test result of product and performance indications and reference standard in comparative example C 6, E 1～E 4 that the present invention is above-mentioned
Requirement is listed in Table 6.
Table 4
Table 5
Table 6
Embodiment 1: the SEBS G1654, the PP R370Y that use N250 white oil oil-filled form TPE S base material, use six benzene oxygen
The compound system of basic ring three phosphonitrile and organic modification MDH H7C/2 composition is fire retardant, and above two fire retardant ratio is 1:
1, the PPO S201A using Asahi Kasei Corporation of Japan is carbon forming agent, and using silane-modified nanosized SiO_2 is anti-wear agent, and other is each
Component refers in the embodiment 1 of table 2.By in table 4 embodiment 1 test result it appeared that: prepared flame-proof composite material
With extrusion electric wire there is good mechanical property and fire resistance, electric wire hot strength 16.5Mpa, elongation at break 413%,
UL94 vertical combustion test result V 0 grade, UL1581 test result is VW 1 grade.Electric wire is through 136 DEG C of aging stretchings in 168 hours
Strength retention is 92%, and elongation at break conservation rate is 94%, all substantially exceed UL1581 heat ageing standard regulation (>=
75%)；Through thermal shock without cracking phenomena, show the heat aging property of excellence.The apparent light of electric wire is fine and smooth, soft, without analysis
Go out, without scratch, show fabulous combination property, can meet current power automobile charging electric wire requirement.
Embodiment 2: use SEBS G1650 to replace SEBS G1654, and PP R370Y oil-filled through N250 white oil forms base
Material, other each component composition is equal to the composition of embodiment 1.By in table 4 embodiment 2 test result it appeared that: with enforcement
Example 1 compares, the flame-proof composite material of preparation and the hot strength of extrusion electric wire, aging after strength retention the most slightly drop
Low, but the most still it is significantly larger than the lower limit requirement of UL standard, except the melt index of material is increased to 8.6g/ by 2.5g/10min
10min, other physical property changes less generally.In general, electric wire and material all have the combination property of excellence, meet electricity
The electrical automobile requirement of charging electric wire.Meanwhile, compared with Example 1, in embodiment 2, material flowability increases, for relatively thin-walled
Thick electric wire extrusion is more prone to.
Embodiment 3: use SEBS G1650 to replace the SEBS G1654, the oil-filled and PP through white oil N250 of 50% addition
R370Y forms TPE S base material, and other each component composition is equal to embodiment 1 and the composition of embodiment 2.By embodiment 3 in table 4
Test result it appeared that: the flame-proof composite material of preparation and the performance of extrusion electric wire are between embodiment 1 and the thing of embodiment 2
Between property, combination property is good, fully meets the use requirement of charging electric motor vehicles electric wire.
Comparative example C 1: on the basis of embodiment 3, keeps hexaphenoxycyclotriphosphazene and MDH H7C/2 to add total amount,
Only changing the adding proportion (being changed into 2:1 by original 1:1) of two kinds of fire retardants, other each component and ratio all keep constant.By
In table 5 comparative example C 1 test result it appeared that: the fire resistance of the flame-proof composite material of preparation and extrusion electric wire reduces,
The test of UL94 vertical combustion is only V 1 grade, UL1581 test and is only FT 2 grades, and electric wire is fire-retardant can not be tested by vertical combustion.
Therefore, its fire resistance does not reaches the use requirement of charging electric motor vehicles electric wire.
Comparative example C 2: on the basis of embodiment 3, keeps hexaphenoxycyclotriphosphazene and MDH H7C/2 to add total amount,
Only changing the adding proportion (being changed into 1:2 by original 1:1) of two kinds of fire retardants, other each component and ratio all keep constant.By
Comparative example C 2 test result in table 5 it appeared that: the flame-proof composite material hardness of preparation is increased slightly and (is increased to by 90A
92A), the fire resistance of extrusion electric wire declines substantially, and UL1581 test is Fail, and its fire resistance can not reach requirement completely.
Comparative example C 3: on the basis of embodiment 3, only changes the kind of carbon forming agent: changed into by original carbon forming agent PPO
Carbon forming agent PC, keeps the composition of other each component and ratio the most constant.Comparative example C 3 test result in table 5: UL94 vertical combustion
, there is molten drop phenomenon in V 2 grades during burning, become charcoal to reduce；Electric wire UL1581 tests FT 2 grades, and fire resistance declines, it is impossible to reach
The flame-retardancy requirements of charging electric motor vehicles electric wire.
Comparative example C 4: on the basis of embodiment 3, only changes the kind of base material, equivalent polyester-type TPU replace above-mentioned
TPE S base material, keep the composition of the component such as fire retardant, carbon forming agent and ratio the most constant.Comparative example C 4 test result in table 5:
UL94 vertical combustion V 2 grades, composite hardness is increased to 98A by 90A, and electric wire flexibility is substantially reduced, and constant temperature and humidity tests out
Now precipitation phenomenon, and elongation at break is reduced to 232% by 455%.Poor-performing generally, is not reaching to used for electric vehicle filling
The use requirement of electricity electric wire.
Comparative example C 5: on the basis of embodiment 3, the only kind of changing section base material: replaced by equivalent polyester-type TPU
Oil-filled SEBS, forms base material with PP R370Y, and other each component is equal to the composition of embodiment 3.By comparative example C 5 in table 5
Test result is visible: similar with the test result of comparative example C 4, and its UL94 vertical combustion is only V 2 grades, material hardness by
90A increases to 96A.Meanwhile, its extrusion electric wire not only hardness is higher, and rough surface, electric wire intensity only 6.5Mpa, fracture is stretched
Long rate only 98%, loses the use value as charging electric motor vehicles electric wire.
Comparative example C 6: on the basis of embodiment 3, only changes the kind of base material, the TPV of equivalent replace above-mentioned
TPE S base material, keeps composition and the constant rate of other each component.From the test result of comparative example C 6 in table 6: with reality
Executing example 3 result to compare, its fire resistance keeps constant, and heat aging performance slightly improves.But its hot strength declines substantially, extrusion
Electric wire intensity only has 7.8Mpa, is not reaching to the 8.5Mpa lower limit requirement that UL standard specifies, it is impossible to as charging electric motor vehicles
Electric wire uses.
Embodiment 4: on the basis of embodiment 3, the only composition of changing section base material: use 50 parts of POP 3980 replacement 40
Part PP R370Y and 10 parts of N250 white oils, keep composition and the constant rate of other each component.The test knot of embodiment 4 in table 4
Really: compared with Example 3, the hardness of composite is reduced to 85A by 90A, and elongation at break is increased to 565% by 468%, electricity
Line flexibility increases, and all other performances are held essentially constant, and meet the use of charging electric motor vehicles electric wire.
Embodiment 5: on the basis of embodiment 3, the only composition of changing section base material: use 60 parts of POP 3980 replacement 40
Part PP R370Y and 20 parts of N250 white oils, reduce interpolation number (hexaphenoxycyclotriphosphazene and the MDH H7C/2 of fire retardant simultaneously
It is reduced to 40 parts respectively by 45 parts), keep composition and the constant rate of other each component.Table 4 embodiment 5 test result: with
Embodiment 3 is compared, and composite hardness is reduced to 84A by 90A, and elongation at break is increased to 583% by 468%, and electric wire is soft
Property substantially increase, intensity slightly improves simultaneously, and the change of other performance is little, and its combination property is improved further generally.
Comparative Example E 1: on the basis of embodiment 5, only changes the kind of fire retardant MDH, uses equivalent to change without surface
Property MDH H7 (MDH I) substitute MDH H7C/2 (MDH II), the composition of other each component and ratio keep constant.Table 6 compares
Example E 1 test result: compared with Example 5, mechanical property and the fire resistance of composite declined, and UL94 tests knot
Really V 1 grade；Wire surface is the most coarse, occurs uneven gel particle distribution, and UL1581 flame retardant test FT 2 grades is not reaching to ideal
Charging electric motor vehicles electric wire standard.
Comparative Example E 2: on the basis of embodiment 5, changing section base material forms, replaces 10 parts with the POP 3980 of 10 parts
N250 white oil, reduces the addition of fire retardant: hexaphenoxycyclotriphosphazene and MDH H7C/2 are reduced to by 40 parts respectively simultaneously
35 parts.Table 6 Comparative Example E 2 test result: compared with embodiment 5 and Comparative Example E 1, composite and extrusion power line mechanical performance
All increased, but fire resistance the most substantially reduces, UL94 and UL1581 flame retardant test Fail, fire resistance does not meet electronic
The automobile requirement of charging electric wire.
Comparative Example E 3: on the basis of embodiment 5, the only kind of changing section base material, replace with the POP 6202 of equivalent
POP 3980, the composition of other each component and ratio keep constant.Table 6 Comparative Example E 3 test result: compared with Example 5, multiple
Condensation material hardness is reduced to 79A by 84A, and meanwhile, electric wire intensity is declined slightly, cracking phenomenon after thermal shock test, always
Strength retention only 69% (≤75%) after change, percent retention of elongation 63% (≤75%), its combination property can not meet electricity
The electrical automobile use requirement of charging electric wire.
Comparative Example E 4: on the basis of embodiment 5, only remove anti-wear agent nanosized SiO_2, keep other each component composition and
Constant rate.Table 6 Comparative Example E 4 test result is visible: after abrasion test, and obvious scratch occurs in wire surface, as
The use of charging electric motor vehicles electric wire, its anti-wear performance is poor, and service life reduces.
To sum up, by table 4 it appeared that: a kind of TPE S base charging electric motor vehicles electric wire material prepared by the present invention has
Well combination property.Its extrusion becomes the fire-retardant VW 1 grade of line, and resistance to ag(e)ing is excellent, separates out without cracking and fire retardant, Ke Yi
105 DEG C of life-time service.As charging electric motor vehicles electric wire, its smooth surface, soft pliable is bent, and wearability is good, can substitute
Tradition Halogen PVC base electric wire, meets current power automobile charging electric wire well and uses requirement.
Disclosed above is only the several specific embodiment of the present invention, but the application is not limited thereto, any in the present invention
On the basis of, the variation that wherein formula composition, processing technique etc. are carried out, all should be within the application protection domain.
Claims (3)
1. a charging electric motor vehicles electric wire material, is characterized in that: be made up of the raw material of weight components:
Described plasticity elastomeric soft materials is powdered hydrogenated (s-B-S) block copolymer, its molecular weight
Being 8～280,000, the ratio of phenylethylene/butadiene is 2:8 to 4:6, and density is 0.85～0.95；Described white oil is petroleum cracking
Technical grade paraffin oil obtained by journey, flash-point is 200～250 DEG C, and at 40 DEG C, kinematic viscosity is 30～150cSt；
Described polyolefine material is in polyethylene, polypropylene, ethylene-octene random copolymer, ethylene-propylene random copolymer
A kind of several；Described Halogenless composite fire retardant is the super fine magnesium hydroxide of organic modification of surface, aluminium hydroxide, hydrated magnesium silicate
Or potter's clay and APP, melamine salt, polyphosphazene or the mixture of phosphate ester；
Described polyphosphazene be phosphonium flame retardant be phenoxy group polyphosphazene；
Smoke suppressant is Firebrake ZB, ammonium octamolybdate, molybdenum dioxide or stannum oxide；Described antioxidant is antioxidant 1010 and antioxidant
168, anti-oxidant DLTP or the binary mixture of antioxidant DSTP；Described lubricant is erucyl amide, oleamide or stearic acid
Amide；Described anti-wear agent is the nano silicon of surface organic modification；Described coupling agent is silane coupler；Described bulking agent
Connect for ethylene-vinyl acetate copolymer, the polyethylene of maleic anhydride grafting, the polypropylene of maleic anhydride grafting, maleic anhydride
Branch ethylene-octene copolymer, maleic anhydride grafting ethylene-propylene copolymer or maleic anhydride grafting hydrogenation (styrene-
Butadiene-styrene) block copolymer.
Charging electric motor vehicles electric wire material the most according to claim 1, is characterized in that: carbon forming agent is Merlon, gathers
Phenylene ether, epoxy resin or phenolic resin.
3. a preparation method for the charging electric motor vehicles electric wire material described in claim 1, is characterized in that: can by 100 parts
Plastic resilient soft material and 50～300 parts of white oils add in mixers, stir within 3～5 minutes, make white oil by full and uniform absorption,
Then by 50～200 parts of polyolefine materials, 50～200 parts of Halogenless composite fire retardants through activation processing, 0～20 part of one-tenth charcoal
Agent, 0～3 part of smoke suppressant, 0.5～1.0 part of antioxidant, 0.3～3.0 part of lubricant, 2～8 parts of anti-wear agents, 0～2.0 part of coupling
Agent, 0～5 part of bulking agent are sequentially added in mixer mixing；The material that mixture is good is transferred to reactive double screw extruder material
Bucket, under 150～250 DEG C of processing temperatures, melt blending extruding pelletization, obtains product.
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