CN101974195B - Fire-retarding and low-temperature resistant polypropylene material, preparation method thereof and use thereof - Google Patents
Fire-retarding and low-temperature resistant polypropylene material, preparation method thereof and use thereof Download PDFInfo
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- CN101974195B CN101974195B CN2010105053581A CN201010505358A CN101974195B CN 101974195 B CN101974195 B CN 101974195B CN 2010105053581 A CN2010105053581 A CN 2010105053581A CN 201010505358 A CN201010505358 A CN 201010505358A CN 101974195 B CN101974195 B CN 101974195B
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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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- 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
-
- 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
-
- 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
-
- 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
- B29C2948/92904—Die; Nozzle zone
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a fire-retarding and low-temperature resistant polypropylene material, a preparation method thereof and use thereof. The material consists of 50 to 75 weight parts of co-polypropylene, 15 to 25 weight parts of fire retardant, 10 to 25 weight parts of thermoplastic elastomer and 0.2 to 0.5 weight part of antioxygen. The preparation method comprises: mixing the components in a high-speed mixer; feeding the mixture in an double-screw extrude equipped with multistage heating zones; and uniformly dispersing, extruding to make grains, and obtaining the fire-retarding and low-temperature resistant polypropylene material. The fire resistance of polypropylene material reaches UL94-3.2mm V0, the polypropylene material can bear a temperature of -20DEG C, the tensile strength of the polypropylene material is over 18MPa, the tensile elongation of the polypropylene material is over 200 percent, and the bending strength of the polypropylene material is not less than 22MPa. The fire-retarding and low-temperature resistant polypropylene material can be used for making automobile safety cell, control wire twisted sleeve, various outdoor electric wire protective sleeves and the like.
Description
Technical field
The present invention relates to flame retardant plastics, particularly a kind of fire-retardant low temperature resistant polypropylene material.
Background technology
It is little that Vestolen PP 7052 (PP) has density, and thermotolerance, rigidity and hardness are high. and processing characteristics is good, advantages such as nontoxic, the tasteless and good luster of goods, thereby be widely used in every field.But not fire-retardant, the fragile under low temperature disconnected Vestolen PP 7052 that limited of Vestolen PP 7052 itself is used in the product of this generic request is arranged.
Publication number be mention in the patent of invention of CN 1134435A through in polyolefine, adding a large amount of through surface-treated Marinco H and add an amount of low temperature resistant improving agent and add more a spot of modified magnesium hydroxide and add a certain amount of fire retardant and an amount of low temperature resistant improving agent is realized polyacrylic fire-retardant low temperature resistant.
Though foregoing invention has realized polyolefinic fire-retardant and low temperature resistant, but greatly reduce the tensile elongation of material, changed the over-all properties of material.
Summary of the invention
In order to overcome polyacrylic break-through point not fire-retardant and fragile under low temperature, primary and foremost purpose of the present invention is to provide a kind of fire-retardant low temperature resistant polypropylene material.Said fire-retardant low temperature resistant polypropylene material had both improved polyacrylic flame retardant resistance and lower temperature resistance, possessed excellent mechanical property again, did not influence the processing characteristics of product simultaneously.
A purpose more of the present invention is to provide a kind of preparation method of fire-retardant low temperature resistant polypropylene material.
For solving above-mentioned purpose, the technical scheme that the present invention adopts is:
A kind of fire-retardant low temperature resistant polypropylene material comprises following component:
The Vestolen PP 7052 of 50-75 weight part;
The fire retardant of 15-25 weight part;
The thermoplastic elastomer of 10-25 weight part;
0.2-0.5 the oxidation inhibitor of weight part.
Said Vestolen PP 7052 is the co-polypropylene of melting index 1.0-40.0g/10min, especially the ethylene block copolymerization polypropylene of melting index 5.0-25.0g/10min.
Said fire retardant is an ammonium polyphosphate, especially surface treated ammonium polyphosphate, more excellent ammonium polyphosphate for the micro encapsulation processing.
Said thermoplastic elastomer is that polyolefins thermoplastic elastomer TPO, especially rubber content are 10%～50% polyolefins thermoplastic elastomer TPO, and more excellent is the polyolefins thermoplastic elastomer TPO of 25%-40% for rubber content.
Said oxidation inhibitor is phenolic antioxidant, phosphite ester kind antioxidant or the two mixing, is preferably 1010,168, B215.
A kind of method of manufacture of fire-retardant low temperature resistant polypropylene material; It is characterized in that fire retardant with 50-75 weight part Vestolen PP 7052 and 15-25 weight part; The oxidation inhibitor of 10-25 weight part thermoplastic elastomer and 0.2-0.5 weight part; Mix through high-speed mixer, the twin screw extruder that is equipped with multistage heating zone band of packing into, the homodisperse extruding pelletization gets fire-retardant low temperature resistant polypropylene material.
Said twin screw extruder temperature is: a district 160-165 ℃, two district 165-170 ℃, three district 170-175 ℃, four district 175-180 ℃, five district 180-185 ℃, six district 180-185 ℃, seven district 175-180 ℃, eight district 170-175 ℃, nine district 165-170 ℃, ten district 165-170 ℃, head 160-165 ℃.
The fire-retardant low temperature resistant polypropylene material of the present invention can be used for car safety air bag, the control electric wire is twisted cover and various outdoor electric wire and cable jackets etc.
The present invention compared with prior art has following advantage and useful technique effect:
The flame retardant resistance of polypropylene material of the present invention reaches UL94-3.2mm V0, and low temperature resistant-20 ℃, tensile strength is greater than 18MPa, and tensile elongation is greater than 200%, and flexural strength is not less than 22MPa, obtains effect like this and mainly is in the preparation process:
1, in Vestolen PP 7052, adds fire retardant; Make material have excellent flame-retardant performance; Reach UL94-3.2mm V0. and be less than 15 weight parts when the fire retardant addition; Can't reach flame retardant effect UL94-3.2mm V0, when the fire retardant addition is higher than stretching and the resistance to low temperature that 25 weight parts will reduce material greatly.The ammonium polyphosphate of micro encapsulation and Vestolen PP 7052 have good consistency, can well disperse, and the flame retardant effect that plays, ammonium polyphosphate have low cigarette, nontoxic advantage, do not produce toxic substance during burning, are the halogen-free flame retardantss that environment is had good protection.
2, add the TPO thermoplastic elastomer, make that Vestolen PP 7052 is low temperature resistant to increase substantially, generally at 0 ℃ of Vestolen PP 7052 of brittle failure easily just ,-20 ℃ all have good physicals after modification.Theoretical according to crazing-shear zone; Its immanent cause is the rubber particle absorption of disperse phase and has disperseed a large amount of focal point of stress and striking energy; When material receives the powerful impact of external force; In Vestolen PP 7052, cause a large amount of crazings and bring out shear zone, along with crazing branching around it absorbs a large amount of impact energys.Owing to the phase mutual interference of stress between a large amount of crazings, reduced the stress of crazing end simultaneously, hindered further developing of crazing, made polyacrylic toughness reinforcing raising greatly.The uniform distribution of thermoplastic elastomer particle, the rubber components among the TPO consumes lot of energy through elastic buffer when stressed; Even if under low temperature condition, also good toughness can be arranged, play low temperature resistant effect.TPO adds when being less than 10 parts can't reach low temperature resistant requirement, is higher than 25 parts and can makes flame retardant resistance be difficult to reach requirement again.
3, the effect of oxidation inhibitor is to reduce the course of processing owing to the influence to resin property such as heat, oxygen, shearing.
4, Vestolen PP 7052, fire retardant, TPO and oxidation inhibitor are extruded through the twin screw homodisperse, and fire retardant can play the stretching and the flexural strength effect of raising system as rigid particles, but can reduce the tensile elongation of system; TPO can effectively improve the snappiness of system as flexible resin, can improve the system tensile elongation greatly, but tensile strength and flexural strength are had adverse influence.The control of the compound proportion through rigid particles and flexible resin makes it homodisperse, and the system performance of making obtains equilibrium, has not only possessed high tensile strength and tensile elongation but also has had high flexural strength.
5, the present invention adopts multistage heating that material is heated in relatively low temperature fully, and homodisperse under littler shearing makes material physical property excellent more.
Embodiment
Below in conjunction with embodiment the present invention is described in further detail, but embodiment of the present invention is not limited thereto.
Embodiment one:
Ethylene block copolymerization polypropylene (Korea S's star dawn with 75kg; J740), melting index be 25.0g/10min, 15kg the micro encapsulation ammonium polyphosphate (generation Anhua worker, FR-CH-3), the TPO thermoplastic elastomer (Mitsubishi Chemical of 10kg; THERMORUN3981B/N); Rubber content be 40% with 1010 (Switzerland vapour crust) of 0.2kg, through high-speed mixer, mixed at high speed made its premix even in 30 seconds; Through the twin screw extruder of multistage heating zone band is arranged, the homodisperse extruding pelletization makes fire-retardant low temperature resistant polypropylene material again.The twin screw extruder temperature is: a district 160-165 ℃, two district 165-170 ℃, three district 170-175 ℃, four district 175-180 ℃, five district 180-185 ℃, six district 180-185 ℃, seven district 175-180 ℃, eight district 170-175 ℃, nine district 165-170 ℃, ten district 165-170 ℃, head 160-165 ℃.
With the granular fire-retardant low temperature resistant polypropylene material for preparing; Carry out sample preparation through injection moulding machine, tensile property is pressed I type batten sample preparation among the GB/T1040-92, and the flexural strength batten is of a size of 80mm * 10mm * 4mm; The notch shock batten is of a size of 80mm * 10mm * 4mm, and the breach type is a C type breach.Made batten is also tested according to following testing method:
Tensile strength and tension fracture elongation rate property carry out tensile strength according to GB/T 1040-92 and tension fracture elongation rate is measured.Draw speed adopts 50mm/min.
Flexural strength is measured according to GB/T 1042-79.
Lower temperature resistance will be tested batten-20 ℃ of held 48 hours, measure notched Izod impact strength according to GB/T 1043-93 then; Notched Izod impact strength be notch specimen under the impact load effect, the ratio of the impact energy that absorbs during destruction and the original cross-sectional area at sample break place is that the energy that unit surface is absorbed when destroying through sample is weighed material impact flexible method.The material at low temperature notched Izod impact strength can reflect flexible quality under the material at low temperature situation.
It is 3.2mm that flame retardant resistance is measured thickness according to the UL94VE method.
Embodiment two:
The block copolymerization polypropylene of raw material: 50kg, melting index are the micro encapsulation ammonium polyphosphate of 40.0g/10min, 25kg, the TPO thermoplastic elastomer of 25kg, rubber content be 50% with the B215 of 0.5kg (Switzerland's vapour crust).
Each raw material model is bought producer with embodiment one, preparation method and testing method such as embodiment one.
Embodiment three:
The block copolymerization polypropylene of raw material: 60kg, melting index are the micro encapsulation ammonium polyphosphate of 5.0g/10min, 20kg, the TPO thermoplastic elastomer of 20kg, rubber content be 25% with 168 (Switzerland vapour crust) of 0.3kg.
Each raw material model is bought producer with embodiment one, preparation method and testing method such as embodiment one.
Embodiment four:
The block copolymerization polypropylene of raw material: 55kg, melting index are the micro encapsulation ammonium polyphosphate of 20.0g/10min, 15kg, the TPO thermoplastic elastomer of 15kg, rubber content be 40% with 168 (Switzerland vapour crust) of 0.3kg.
Each raw material model is bought producer with embodiment one, preparation method and testing method such as embodiment one.
Embodiment five:
The block copolymerization polypropylene of raw material: 70kg, melting index are the micro encapsulation ammonium polyphosphate of 10.0g/10min, 20kg, the TPO thermoplastic elastomer of 15kg, rubber content be 30% with the B215 of 0.4kg (Switzerland's vapour crust).
Each raw material model is bought producer with embodiment one, preparation method and testing method such as embodiment one.
Embodiment six:
The block copolymerization polypropylene of raw material: 60kg, melting index are the micro encapsulation ammonium polyphosphate of 15.0g/10min, 15kg, the TPO thermoplastic elastomer of 25kg, rubber content be 35% with 1010 (Switzerland vapour crust) of 0.5kg.
Each raw material model is bought producer with embodiment one, preparation method and testing method such as embodiment one.
Embodiment seven:
The block copolymerization polypropylene of raw material: 65kg, melting index are the micro encapsulation ammonium polyphosphate of 15.0g/10min, 20kg, the TPO thermoplastic elastomer of 20kg, rubber content be 20% with 168 (Switzerland vapour crust) of 0.3kg.
Each raw material model is bought producer with embodiment one, preparation method and testing method such as embodiment one.
Embodiment eight:
The block copolymerization polypropylene of raw material: 65kg, melting index are the micro encapsulation ammonium polyphosphate of 35.0g/10min, 15kg, the TPO thermoplastic elastomer of 20kg, rubber content be 45% with the B215 of 0.2kg (Switzerland's vapour crust).
Each raw material model is bought producer with embodiment one, preparation method and testing method such as embodiment one.
Embodiment nine:
The block copolymerization polypropylene of raw material: 70kg, melting index are the micro encapsulation ammonium polyphosphate of 25.0g/10min, 20kg, the TPO thermoplastic elastomer of 15kg, rubber content be 15% with 168 (Switzerland vapour crust) of 0.2kg.
Each raw material model is bought producer with embodiment one, preparation method and testing method such as embodiment one.
Embodiment ten:
The block copolymerization polypropylene of raw material: 50kg, melting index are the micro encapsulation ammonium polyphosphate of 30.0g/10min, 17.5kg, the TPO thermoplastic elastomer of 17.5kg, rubber content be 45% with the B215 of 03kg (Switzerland's vapour crust).
Each raw material model is bought producer with embodiment one, preparation method and testing method such as embodiment one.
Table 1 experimental result
The foregoing description is a preferred implementation of the present invention; But embodiment of the present invention is not restricted to the described embodiments; Other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; All should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (6)
1. fire-retardant low temperature resistant polypropylene material is characterized in that composed of the following components:
The Vestolen PP 7052 of 50-75 weight part;
The fire retardant of 15-25 weight part;
The thermoplastic elastomer of 10-25 weight part;
0.2-0.5 the oxidation inhibitor of weight part;
Said Vestolen PP 7052 is the ethylene block copolymerization polypropylene of melting index 5.0-25.0g/10min;
Said fire retardant is the ammonium polyphosphate that micro encapsulation is handled;
Said thermoplastic elastomer is polyolefins thermoplastic elastomer TPO; Rubber content is 10%～50% among the said polyolefins thermoplastic elastomer TPO;
Said oxidation inhibitor is phenolic antioxidant, phosphite ester kind antioxidant or the two mixing.
2. a kind of fire-retardant low temperature resistant polypropylene material according to claim 1, it is characterized in that: rubber content is 25%-40% among the said polyolefins thermoplastic elastomer TPO.
3. a kind of fire-retardant low temperature resistant polypropylene material according to claim 1 is characterized in that: said oxidation inhibitor is 1010,168 or B215.
4. the method for manufacture of the described fire-retardant low temperature resistant polypropylene material of claim 1; It is characterized in that comprising the steps: fire retardant with 50-75 weight part Vestolen PP 7052 and 15-25 weight part; The oxidation inhibitor of 10-25 weight part thermoplastic elastomer and 0.2-0.5 weight part; Mix through high-speed mixer, reinstall in the twin screw extruder of multistage heating zone band, the homodisperse extruding pelletization gets fire-retardant low temperature resistant polypropylene material.
5. the method for manufacture of a kind of fire-retardant low temperature resistant polypropylene material according to claim 4; It is characterized in that said twin screw extruder temperature is: a district 160-165 ℃, two district 165-170 ℃, three district 170-175 ℃, four district 175-180 ℃, five district 180-185 ℃, six district 180-185 ℃, seven district 175-180 ℃, eight district 170-175 ℃, nine district 165-170 ℃, ten district 165-170 ℃, head 160-165 ℃.
6. the described a kind of fire-retardant low temperature resistant polypropylene material of claim 1 is twisted the application in cover and the outdoor electric wire and cable jacket at preparation car safety air bag, control electric wire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105053581A CN101974195B (en) | 2010-10-12 | 2010-10-12 | Fire-retarding and low-temperature resistant polypropylene material, preparation method thereof and use thereof |
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| CN2010105053581A CN101974195B (en) | 2010-10-12 | 2010-10-12 | Fire-retarding and low-temperature resistant polypropylene material, preparation method thereof and use thereof |
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| CN101974195B true CN101974195B (en) | 2012-08-15 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105949595A (en) * | 2016-05-20 | 2016-09-21 | 上海至正道化高分子材料股份有限公司 | 150 DEG C-radiation-resistant crosslinked low-smoke halogen-free flame-retardant cable material |
| CN114369305A (en) * | 2021-12-28 | 2022-04-19 | 高邮市金国电缆材料厂有限公司 | Thermoplastic low-smoke halogen-free high-temperature-resistant flame-retardant cable material and preparation method thereof |
| CN115260653A (en) * | 2022-08-16 | 2022-11-01 | 山东道恩高分子材料股份有限公司 | Low-temperature-resistant TPO material for automobile safety airbag cover |
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| CN1611537A (en) * | 2003-10-30 | 2005-05-04 | 中国石油化工股份有限公司 | Toughened flame-retarded poly propylene composition and its preparing method |
| CN101067465A (en) * | 2007-06-01 | 2007-11-07 | 华东理工大学 | Expansion fireproof casing pipe and producing method thereof |
| CN101358028A (en) * | 2008-09-02 | 2009-02-04 | 宁波一舟塑胶有限公司 | Halogen-free flame-retardant thermoplastic elastomer electrical cable material using polyphenylene ether as base material and preparation method thereof |
| CN101469100A (en) * | 2008-06-19 | 2009-07-01 | 上海化工研究院 | Halogen-free expansion type flame-retarding composition based on thermoplastic elastomer SEBS and process for the preparation thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1611537A (en) * | 2003-10-30 | 2005-05-04 | 中国石油化工股份有限公司 | Toughened flame-retarded poly propylene composition and its preparing method |
| CN101067465A (en) * | 2007-06-01 | 2007-11-07 | 华东理工大学 | Expansion fireproof casing pipe and producing method thereof |
| CN101469100A (en) * | 2008-06-19 | 2009-07-01 | 上海化工研究院 | Halogen-free expansion type flame-retarding composition based on thermoplastic elastomer SEBS and process for the preparation thereof |
| CN101358028A (en) * | 2008-09-02 | 2009-02-04 | 宁波一舟塑胶有限公司 | Halogen-free flame-retardant thermoplastic elastomer electrical cable material using polyphenylene ether as base material and preparation method thereof |
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