CN103525051B - A kind of high-strength toughness reinforcing PC/PBT alloy material and its preparation method and application - Google Patents
A kind of high-strength toughness reinforcing PC/PBT alloy material and its preparation method and application Download PDFInfo
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Abstract
The invention discloses a kind of high-strength toughness reinforcing PC/PBT alloy material, its original formulation is made up of antioxidant 1, antioxidant 2, antioxidant 3, SDP, UV light absorber, toughner, PBT, PC.The high-strength toughness reinforcing PC/PBT alloy material of one provided by the present invention has the advantages such as high-performance, high strength, wear-resisting, not yielding, high tenacity, ageing-resistant, stable in properties, be particularly useful for bullet train, car, light truck component, sports equipment, medicine equipment manufacture in application.
Description
Technical field
The present invention relates to technical field of polymer materials, particularly relate to PC/PBT alloy material, be specifically related to a kind of high-strength toughness reinforcing PC/PBT alloy material and its preparation method and application.
Background technology
Polycarbonate (PC) is the engineering plastics that a kind of over-all properties is superior, also be the general engineering plastic that rate of growth is the fastest in recent years, there is excellent impelling strength, dimensional stability, electric insulating quality, creep resistant, weathering resistance, the advantages such as the transparency and nontoxicity, be widely used in automobile at present, electric, building, office equipment, packaging, sports equipment, the fields such as health care, along with deepening continuously of study on the modification, be extended to aerospace just rapidly, computer, the high-tech areas such as CD, but also there are some shortcomings in it, as processing fluidity is poor, be easy to stress cracking, to breach, more responsive and wear resistance is good enough etc.
Polybutylene terephthalate (PBT) is the linear saturated polyester resin of a kind of crystal type.Its crystallization velocity is fast, can high-speed molding; Weathering resistance, electrical property, flame retardant properties, chemical proofing, friction wear excellent, water-absorbent is low, heat-drawn wire is high; Good mechanical performance, physical strength is high, resistance to fatigue and good stability of the dimension, and creep is also less, these performances also changes little under the high temperature conditions.
PC, PBT are important engineering plastics, and the alloy of both mixing can play the strong point of PC and PBT resin, suppresses shortcoming.But the mechanical property of PC/PBT is general not high, limits its range of application.
Summary of the invention
A kind of PC/PBT alloy material of high-strong toughness is the object of this invention is to provide for the deficiencies in the prior art.
Another object of the present invention be to provide a kind of can large-scale promotion, improve the preparation method of above-mentioned PC/PBT alloy material performance.
Another object of the present invention is to provide the application that a kind of above-mentioned height strengthens tough PC/PBT alloy material.
First object of the present invention realizes in the following manner:
A kind of high-strength toughness reinforcing PC/PBT alloy material, the mixture that its raw material is made up of each component of following weight part:
Described antioxidant 1 is antioxidant 1010, and antioxidant 2 is antioxidant 168, and antioxidant 3 is antioxidant TH-412S; Described SDP is AMSP; The ROHM AND HAAS EXL-2620 that described toughner produces for Dow Chemical, PBT are polybutylene terephthalate, and PC is polycarbonate.
In above-mentioned materials, antioxidant 1010, antioxidant 168 and TH-412S are commercially available prod, and all have the effect strengthening product antioxidant property, three is acting in conjunction in the present invention, effectively can delay the aging, damaged of product of the present invention.
In above-mentioned materials, UV light absorber UV234 can select any one commercially available prod, is a kind of efficient protective agent, can absorbs UV-light, has that look shallow is, nontoxic, consistency is good, transport property is little, be easy to the features such as processing.UV234 in the present invention helps the color and luster reducing described high-strength toughness reinforcing PC/PBT alloy material, delays loss of physical properties simultaneously.With above-mentioned irgasfos 168,1098 and antioxidant TH-412S act synergistically, significantly can promote the ageing-resistant performance of PC/PBT alloy material of the present invention, extend product work-ing life.
In above-mentioned materials, anhydrous phosphoric acid SDP is commercially available prod, and it has grafting effect and fall and moltenly refers to as use, strengthens the toughness of PC/PBT alloy material.
In above-mentioned materials, toughner ROHM AND HAAS EXL-2620 toughner is commercially available prod, effectively can increase the shock resistance of material.When being used alone EXL-2620, the notched Izod impact hit intensity of PC/PBT alloy material can be promoted to 700J/M-780J/M.And designer finds under study for action, above-mentioned EXL-2620, PC, PBT and various auxiliary agent is added with formula of the present invention, the highest 908J/M that is promoted to of notched Izod impact hit intensity of final obtained PC/PBT alloy material, performance has the shock resistance being better than currently available products.Especially will time be pointed out that owing to comprising divinyl in EXL-2620, if add the product of EXL-2620 be applied to outdoor easily because of divinyl escape, volatilization and losing efficacy.But each analog assistant in designer of the present invention is filled a prescription by optimizing materials and consumption thereof, be incorporated in PC/PBT alloy material of the present invention with can making the stable effective ingredients of EXL-2620, thus make it to be applied in outdoor field also can long-acting, play consistently excellent performance.This effect not yet by the industry know.
In above-mentioned materials, PBT can select arbitrary commercially available prod to implement, and PC can select arbitrary commercially available prod to implement.
The preparation method of above-mentioned a kind of high-strength toughness reinforcing PC/PBT alloy material, it specifically comprises the steps:
To repeatedly be uniformly mixed in rear feeding twin screw extruder in antioxidant 1, antioxidant 2, antioxidant 3, SDP, UV light absorber, toughner, PBT, PC loading stirrer according to above-mentioned ratio; melting mixing at the temperature of 250-300 DEG C; gained melt cools through tank after being extruded by Twin screw extruder; introduce dicing machine and carry out pelletizing operation, gained pellet is described high-strength toughness reinforcing PC/PBT alloy material.
Described repeatedly stirring refers to stirring repeatedly three times, and each churning time is 30-50 minute.
The rotating speed of described stirrer is 650-1300 rev/min.
Contriver finds after summing up experience in practice, and the rotating speed improving stirrer can make each feed composition mix more fully thus obtain homogeneous effect.For some auxiliary agent, stirring velocity is crossed and is then not easily mixed slowly, and too high mixing speed easily causes the cracking of himself structure.The rotating speed of above-mentioned stirrer is that inventor is preferred according to the physical property of the various feed composition of the present invention, within the scope of this, can ensure that each component of raw material can mix, can effectively prevent raw material generation cracking and lose efficacy again.Described stirring repeatedly refers to the mixing direction alternately changing stirrer, so just can promote the mixing of each feed composition further when not increasing rotating speed.
The too low melting mixing that easily causes of temperature is not thorough, smelting temperature of the present invention is selected according to the character of all kinds of raw material, in this temperature range, all kinds of raw material is all fusible is thoroughly able to abundant mixing, and the not easily too high and cracking of Yin Wendu or variable color and affect the outward appearance of the finished product.Raw material only obtains abundant mixing and combines, and could act synergistically and obtain high-quality performance required for the present invention.
Further, the rotating speed of described Twin screw extruder is 300-500 rev/min.
Further, described melt extruded by Twin screw extruder after when tank cools, tank temperature used is 50-70 DEG C.
Due to the different in kind of product, its coolant water temperature is also each inconsistent.In general, the water temperature space that can reduce between pellet raised in tank makes it not easily broken, but too high water temperature will cause pellet to bond, and affect product quality and outward appearance.Therefore in the present invention, contriver designs above-mentioned tank water temperature range according to the rotating speed of Twin screw extruder, the character of melt, and the product pellet gap of the present invention of producing in this temperature range is moderate, not easily bond, and has good processing characteristics.
Further, the rotating speed of described dicing machine is 300-900 rev/min.
Inventor finds in practice and research; the too high meeting of dicing machine rotating speed makes pellet volume too small and easily ruptures in follow-up tie rod operation; pellet then can be made when dicing machine rotating speed is crossed slow loose, affect final pellet attractive in appearance while also can strengthen difficulty of processing in pellet application.And the pellet size that the pellet of each composition all has it suitable, for the present invention, the rotating speed of the dicing machine of 300-900 rev/min farthest can promote outward appearance and the processing characteristics of product of the present invention.
Every test of product is shown, the high-strength toughness reinforcing PC/PBT alloy material of one provided by the present invention has the advantages such as high-performance, high strength, wear-resisting, not yielding, high tenacity, ageing-resistant, stable in properties, be particularly useful for bullet train, car, light truck component, sports equipment, medicine equipment manufacture in application.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention is by being optimized the kind of the auxiliary agent in composition of raw materials and consumption thereof, obtain a kind of high-strength toughness reinforcing PC/PBT alloy material, its tensile strength can reach 63Mpa, flexural strength can reach 95Mpa, and unit elongation can reach 90%, and bending modulus can reach 2120Mpa, notched Izod impact strength can reach 908J/m 23 DEG C time, indices is obviously better than like product, can be fed into widely in car, the manufacture of light truck component, promote the lifting of quality product.
2. the consumption of the present invention to EXL-2620 is optimized, introduce the auxiliary agent that other are suitable simultaneously, EXL-2620 is enable stably to be present in described high-strength toughness reinforcing PC/PBT alloy material and not lose efficacy, break through the applied environment restriction of EXL-2620, enable high-strength toughness reinforcing PC/PBT alloy material of the present invention be applied to outdoor field for a long time, on a large scale.
3. the preparation method of high-strength toughness reinforcing PC/PBT alloy material of the present invention; be obtain process parameter optimizings such as stirrer rotating speed, smelting temperature, tank water temperature, dicing machine rotating speeds according to the feature of each feed composition, the high-strength toughness reinforcing PC/PBT alloy material product obtained by guarantee can realize the technique effect that the present invention pursues.
Embodiment
Be convenient to it will be appreciated by those skilled in the art that and below in conjunction with comparative example and embodiment, the present invention be described in further detail:
Embodiment 1
The present embodiment provides a kind of high-strength toughness reinforcing PC/PBT alloy material, and its composition of raw materials is made up of each component of following weight part:
Described antioxidant 1 is antioxidant 1010, and antioxidant 2 is antioxidant 168, and antioxidant 3 is antioxidant TH-412S; Described SDP is AMSP; The ROHM AND HAAS EXL-2620 that described toughner produces for Dow Chemical, PBT are polybutylene terephthalate, and PC is polycarbonate.
A preparation method for high-strength toughness reinforcing PC/PBT alloy material, it specifically comprises the steps:
To repeatedly be uniformly mixed in rear feeding twin screw extruder in antioxidant 1, antioxidant 2, antioxidant 3, SDP, UV light absorber, toughner, PBT, PC loading stirrer according to above-mentioned ratio; melting mixing at the temperature of 267 DEG C; gained melt cools through tank after being extruded by Twin screw extruder; introduce dicing machine and carry out pelletizing operation, gained pellet is described high-strength toughness reinforcing PC/PBT alloy material.
Above-mentioned antioxidant 1010, antioxidant 168, antioxidant 412S, anhydrous phosphoric acid SDP, UV light absorber UV234,2620 toughner, PBT, PC are commercially available prod.
Above-mentioned repeatedly stirring refers to stirring repeatedly three times, and each churning time is 40 minutes.
The rotating speed of above-mentioned stirrer is 680 revs/min.
The rotating speed of above-mentioned Twin screw extruder is 400 revs/min.
Above-mentioned melt extruded by Twin screw extruder after when tank cools, tank temperature used is 65 DEG C.
The rotating speed of above-mentioned dicing machine is 650 revs/min.
ASTM international standard is adopted by the product of the present embodiment to carry out its result of performance test to it as shown in table 1:
The performance test results of table 1 embodiment 1
As seen from the above table, the high-strength toughness reinforcing PC/PBT alloy material of the one that the present embodiment provides has the advantages such as high-performance, high strength, wear-resisting, not yielding, high tenacity, ageing-resistant, stable in properties, be particularly useful for bullet train, car, light truck component, sports equipment, medicine equipment manufacture in application.
Embodiment 2
The present embodiment provides a kind of high-strength toughness reinforcing PC/PBT alloy material, and its composition of raw materials is made up of each component of following weight part:
Described SDP is anhydrous phosphoric acid, and toughner 1 is ROHM AND HAAS EXL-2620 toughner, and toughner 2 is PBT (polybutylene terephthalate), and toughner 3 is PC (polycarbonate);
A preparation method for high-strength toughness reinforcing PC/PBT alloy material, it specifically comprises the steps:
Antioxidant 1010, antioxidant 168, antioxidant 412S, anhydrous phosphoric acid SDP, UV light absorber UV234, toughner 1, toughner 2, toughner 3 load in stirrer and are repeatedly uniformly mixed in rear feeding twin screw extruder by above-mentioned ratio; melting mixing at the temperature of 250 DEG C; gained melt cools through tank after being extruded by Twin screw extruder; introduce dicing machine and carry out pelletizing operation, gained pellet is described high-strength toughness reinforcing PC/PBT alloy material.
Above-mentioned antioxidant 1010, antioxidant 168, antioxidant 412S, anhydrous phosphoric acid SDP, UV light absorber UV234,2620 toughner, PBT, PC are commercially available prod.
Above-mentioned repeatedly stirring refers to stirring repeatedly three times, and each churning time is 50 minutes.
The rotating speed of above-mentioned stirrer is 650 revs/min.
The rotating speed of above-mentioned Twin screw extruder is 600 revs/min.
Above-mentioned melt extruded by Twin screw extruder after when tank cools, tank temperature used is 70 DEG C.
The rotating speed of above-mentioned dicing machine is 650 revs/min.
ASTM international standard is adopted by the product of the present embodiment to carry out its result of performance test to it as shown in table 2:
The performance test results of table 2 embodiment 2
As seen from the above table, the high-strength toughness reinforcing PC/PBT alloy material of the one that the present embodiment provides has the advantages such as high-performance, high strength, wear-resisting, not yielding, high tenacity, ageing-resistant, stable in properties, be particularly useful for bullet train, car, light truck component, sports equipment, medicine equipment manufacture in application.
Embodiment 3
The present embodiment provides a kind of high-strength toughness reinforcing PC/PBT alloy material, and its composition of raw materials is made up of each component of following weight part:
Described antioxidant 1 is antioxidant 1010, and antioxidant 2 is antioxidant 168, and antioxidant 3 is antioxidant TH-412S; Described SDP is AMSP; The ROHM AND HAAS EXL-2620 that described toughner produces for Dow Chemical, PBT are polybutylene terephthalate, and PC is polycarbonate.
A preparation method for high-strength toughness reinforcing PC/PBT alloy material, it specifically comprises the steps:
To repeatedly be uniformly mixed in rear feeding twin screw extruder in antioxidant 1, antioxidant 2, antioxidant 3, SDP, UV light absorber, toughner, PBT, PC loading stirrer according to above-mentioned ratio; melting mixing at the temperature of 250 DEG C; gained melt cools through tank after being extruded by Twin screw extruder; introduce dicing machine and carry out pelletizing operation, gained pellet is described high-strength toughness reinforcing PC/PBT alloy material.
Above-mentioned antioxidant 1010, antioxidant 168, antioxidant 412S, anhydrous phosphoric acid SDP, UV light absorber UV234,2620 toughner, PBT, PC are commercially available prod.
Above-mentioned repeatedly stirring refers to stirring repeatedly three times, and each churning time is 30 minutes.
The rotating speed of above-mentioned stirrer is 1000 revs/min.
The rotating speed of above-mentioned Twin screw extruder is 600 revs/min.
Above-mentioned melt extruded by Twin screw extruder after when tank cools, tank temperature used is 65 DEG C.
The rotating speed of above-mentioned dicing machine is 650 revs/min.
ASTM international standard is adopted by the product of the present embodiment to carry out its result of performance test to it as shown in table 3:
The performance test results of table 3 embodiment 3
As seen from the above table, the high-strength toughness reinforcing PC/PBT alloy material of the one that the present embodiment provides has the advantages such as high-performance, high strength, wear-resisting, not yielding, high tenacity, ageing-resistant, stable in properties, be particularly useful for bullet train, car, light truck component, sports equipment, medicine equipment manufacture in application.
Embodiment 4
The present embodiment provides a kind of high-strength toughness reinforcing PC/PBT alloy material, and its composition of raw materials is made up of each component of following weight part:
Described antioxidant 1 is antioxidant 1010, and antioxidant 2 is antioxidant 168, and antioxidant 3 is antioxidant TH-412S; Described SDP is AMSP; The ROHM AND HAAS EXL-2620 that described toughner produces for Dow Chemical, PBT are polybutylene terephthalate, and PC is polycarbonate.
A preparation method for high-strength toughness reinforcing PC/PBT alloy material, it specifically comprises the steps:
To repeatedly be uniformly mixed in rear feeding twin screw extruder in antioxidant 1, antioxidant 2, antioxidant 3, SDP, UV light absorber, toughner, PBT, PC loading stirrer according to above-mentioned ratio; melting mixing at the temperature of 300 DEG C; gained melt cools through tank after being extruded by Twin screw extruder; introduce dicing machine and carry out pelletizing operation, gained pellet is described high-strength toughness reinforcing PC/PBT alloy material.
Above-mentioned antioxidant 1010, antioxidant 168, antioxidant 412S, anhydrous phosphoric acid SDP, UV light absorber UV234,2620 toughner, PBT, PC are commercially available prod.
Above-mentioned repeatedly stirring refers to stirring repeatedly three times, and each churning time is 30 minutes.
The rotating speed of above-mentioned stirrer is 1000 revs/min.
The rotating speed of above-mentioned Twin screw extruder is 600 revs/min.
Above-mentioned melt extruded by Twin screw extruder after when tank cools, tank temperature used is 65 DEG C.
The rotating speed of above-mentioned dicing machine is 650 revs/min.
ASTM international standard is adopted by the product of the present embodiment to carry out its result of performance test to it as shown in table 4:
The performance test results of table 4 embodiment 4
As seen from the above table, a kind of high-strength toughness reinforcing PC/PBT alloy material that the present embodiment provides has the performance of good wear-resisting, not yielding, good toughness.Meanwhile, a kind of high-strength toughness reinforcing PC/PBT alloy material of the present embodiment also shows outstanding ageing resistance, is particularly useful for the technical field of polymer materials such as electronic unit, set lights, optics, automobile construction, mechanical industry.
Embodiment 5
The present embodiment provides a kind of high-strength toughness reinforcing PC/PBT alloy material, and its composition of raw materials is made up of each component of following weight part:
Described antioxidant 1 is antioxidant 1010, and antioxidant 2 is antioxidant 168, and antioxidant 3 is antioxidant TH-412S; Described SDP is AMSP; The ROHM AND HAAS EXL-2620 that described toughner produces for Dow Chemical, PBT are polybutylene terephthalate, and PC is polycarbonate.
A preparation method for high-strength toughness reinforcing PC/PBT alloy material, it specifically comprises the steps:
To repeatedly be uniformly mixed in rear feeding twin screw extruder in antioxidant 1, antioxidant 2, antioxidant 3, SDP, UV light absorber, toughner, PBT, PC loading stirrer according to above-mentioned ratio; melting mixing at the temperature of 277 DEG C; gained melt cools through tank after being extruded by Twin screw extruder; introduce dicing machine and carry out pelletizing operation, gained pellet is described high-strength toughness reinforcing PC/PBT alloy material.
Above-mentioned antioxidant 1010, antioxidant 168, antioxidant 412S, anhydrous phosphoric acid SDP, UV light absorber UV234,2620 toughner, PBT, PC are commercially available prod.
Above-mentioned repeatedly stirring refers to stirring repeatedly three times, and each churning time is 50 minutes.
The rotating speed of above-mentioned stirrer is 650 revs/min.
The rotating speed of above-mentioned Twin screw extruder is 600 revs/min.
Above-mentioned melt extruded by Twin screw extruder after when tank cools, tank temperature used is 70 DEG C.
The rotating speed of above-mentioned dicing machine is 650 revs/min.
ASTM international standard is adopted by the product of the present embodiment to carry out its result of performance test to it as shown in table 5:
The performance test results of table 5 embodiment 5
As seen from the above table, the high-strength toughness reinforcing PC/PBT alloy material of the one that the present embodiment provides has the advantages such as high-performance, high strength, wear-resisting, not yielding, high tenacity, ageing-resistant, stable in properties, be particularly useful for bullet train, car, light truck component, sports equipment, medicine equipment manufacture in application.
Embodiment 6
The present embodiment provides a kind of high-strength toughness reinforcing PC/PBT alloy material, and its composition of raw materials is made up of each component of following weight part:
Described antioxidant 1 is antioxidant 1010, and antioxidant 2 is antioxidant 168, and antioxidant 3 is antioxidant TH-412S; Described SDP is AMSP; The ROHM AND HAAS EXL-2620 that described toughner produces for Dow Chemical, PBT are polybutylene terephthalate, and PC is polycarbonate.
A preparation method for high-strength toughness reinforcing PC/PBT alloy material, it specifically comprises the steps:
To repeatedly be uniformly mixed in rear feeding twin screw extruder in antioxidant 1, antioxidant 2, antioxidant 3, SDP, UV light absorber, toughner, PBT, PC loading stirrer according to above-mentioned ratio; melting mixing at the temperature of 277 DEG C; gained melt cools through tank after being extruded by Twin screw extruder; introduce dicing machine and carry out pelletizing operation, gained pellet is described high-strength toughness reinforcing PC/PBT alloy material.
Above-mentioned antioxidant 1010, antioxidant 168, antioxidant 412S, anhydrous phosphoric acid SDP, UV light absorber UV234,2620 toughner, PBT, PC are commercially available prod.
Above-mentioned repeatedly stirring refers to stirring repeatedly three times, and each churning time is 50 minutes.
The rotating speed of above-mentioned stirrer is 650 revs/min.
The rotating speed of above-mentioned Twin screw extruder is 600 revs/min.
Above-mentioned melt extruded by Twin screw extruder after when tank cools, tank temperature used is 70 DEG C.
The rotating speed of above-mentioned dicing machine is 650 revs/min.
ASTM international standard is adopted by the product of the present embodiment to carry out its result of performance test to it as shown in table 5:
The performance test results of table 6 embodiment 6
As seen from the above table, the high-strength toughness reinforcing PC/PBT alloy material of the one that the present embodiment provides has the advantages such as high-performance, high strength, wear-resisting, not yielding, high tenacity, ageing-resistant, stable in properties, be particularly useful for bullet train, car, light truck component, sports equipment, medicine equipment manufacture in application.
Be more than wherein specific implementation of the present invention, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these apparent replacement forms all belong to protection scope of the present invention.
Claims (3)
1. a preparation method for high-strength toughness reinforcing PC/PBT alloy material, is characterized in that, is made up of each component of following weight part:
Antioxidant 1 0.1-0.5 part;
Antioxidant 2 0.1-0.5 part;
Antioxidant 3 0.1-0.5 part;
SDP 0.1-0.5 part;
UV light absorber UV234 0.3-0.6 part;
Toughner 15-20 part;
PBT 20-25 part;
PC 53-65 part;
Described antioxidant 1 is antioxidant 1010, and antioxidant 2 is antioxidant 168, and antioxidant 3 is antioxidant TH-412S; Described SDP is AMSP; The ROHM AND HAAS EXL-2620 that described toughner produces for Dow Chemical, PBT are polybutylene terephthalate, and PC is polycarbonate;
This preparation method comprises the steps:
To repeatedly be uniformly mixed in rear feeding twin screw extruder in antioxidant 1, antioxidant 2, antioxidant 3, SDP, UV light absorber, toughner, PBT, PC loading stirrer, melting mixing at the temperature of 250-300 DEG C, gained melt cools through tank after being extruded by Twin screw extruder, introduce dicing machine and carry out pelletizing operation, gained pellet is described high-strength toughness reinforcing PC/PBT alloy material;
Described repeatedly stirring refers to stirring repeatedly three times, and each churning time is 30-50 minute;
The rotating speed of described stirrer is 650-1300 rev/min;
The rotating speed of described Twin screw extruder is 300-500 rev/min.
2. the preparation method of a kind of high-strength toughness reinforcing PC/PBT alloy material according to claim 1, is characterized in that: described melt extruded by Twin screw extruder after when tank cools, tank temperature used is 50-70 DEG C.
3. the preparation method of a kind of high-strength toughness reinforcing PC/PBT alloy material according to claim 1, is characterized in that: the rotating speed of described dicing machine is 300-900 rev/min.
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| CN104817837A (en) * | 2015-05-05 | 2015-08-05 | 中山市泰安模塑科技有限公司 | Plastic cement material outdoor anti-aging formula |
| CN106117991A (en) * | 2016-07-05 | 2016-11-16 | 吴桥县惠科塑胶材料有限公司 | High-gloss scraping-resistant weather-proof antibacterial polyester alloy resin |
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| CN101914271B (en) * | 2010-09-02 | 2012-07-25 | 中国工程物理研究院化工材料研究所 | Environment-friendly flame retardant PBT/PC composite material and preparation method thereof |
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