CN103665791B - A kind of ageing-resistant high-ductility PET/PC alloy material and its preparation method and application - Google Patents
A kind of ageing-resistant high-ductility PET/PC alloy material and its preparation method and application Download PDFInfo
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Abstract
The invention discloses a kind of ageing-resistant high-ductility PET/PC alloy material, its composition of raw materials is made up of oxidation inhibitor, toughner, toughner 2, PC, PET.One of the present invention ageing-resistant high-ductility PET/PC alloy has the features such as high-performance, breach high-impact, high-tenacity, particularly can survive harsh weather corrode, super currently available products far away, can be used for outdoor electronic component, intelligent electric meter element, water meter element, instrument element, electric parts and terminal block.
Description
Technical field
The present invention relates to technical field of polymer materials, particularly relate to PET/PC field of alloy material, be specifically related to a kind of ageing-resistant high-ductility PET/PC 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, ageing 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 modification technology research, 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, fatigue performance is poor, to breach, more responsive and wear resistance is good enough etc.
PET(polyethylene terephthalate) be those semi-crystalline materials, there is extraordinary chemical stability, physical strength, electrical insulation characteristics, fatigue performance, processing characteristics, thermostability and price advantage, but its low-temperature impact performance is low, there is the post crystallization problem that can not be ignored simultaneously.Blended for PC and the PET PC/PET alloy made is had good flame retardant resistance, oil-proofness and resistance to dissolubility, and overcomes both shortcomings, and there is good fatigue performance, low cost, be widely used in manufacturing electronic product casing and automobile component.But PC/PET toughness is poor, shock resistance is low, there is shortcoming in addition that be easily aging, show that easy stress when being in oxidated in outdoor environment is for a long time easy to crack, power of hitting notched Izod impact is low, wear no resistance, the shortcoming such as poor fluidity, cannot promote the use of open air, product reliability is not enough again.
Summary of the invention
In view of this, an object of the present invention is to provide that a kind of resistance of oxidation is strong, the PET/PC alloy of high-tenacity.
Another object of the present invention be to provide a kind of can large-scale promotion, improve the preparation method of above-mentioned PET/PC alloy property.
Another object of the present invention is to provide a kind of application of above-mentioned PET/PC alloy.
First object of the present invention realizes in the following manner:
A kind of ageing-resistant high-ductility PET/PC alloy material, its composition of raw materials is made up of each component of following weight part:
Oxidation inhibitor 0.1-0.5 part;
Toughner 12-5 part;
Toughner 22-5 part;
PET49.5-65.9 part;
PC30-40 part
Described oxidation inhibitor is the composite antioxidant K21 that Hongjiang City is prosperous and Chemical Co., Ltd. produces, the AX8900 that described toughner 1 produces for French Arkema, the ROHM AND HAAS EXL-2620 of described toughner 2 for producing for Dow Chemical.
Above-mentioned oxidation inhibitor is for being the composite antioxidant K21 that Hongjiang City is prosperous and Chemical Co., Ltd. produces, effectively can improve the heat-resisting oxidation effectiveness of PET/PC alloy of the present invention, the thermal destruction of suppression PET/PC alloy and oxidative degradation, in the work-ing life of the PET/PC alloy obtained by prolongation, make it not easily to break, damage.
Described toughner 1 is the terpolymer of ethene, methyl acrylate and glycidyl methacrylate for AX8900 that French Arkema produces, can be used as the normal temperature toughner of PET/PC alloy.Described toughner 2 is ROHM AND HAAS EXL-2620, 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 it is to be noted owing to comprising divinyl in EXL-2620, if the product adding EXL-2620 is applied to outdoor easily because divinyl is escaped, volatilizees and lost efficacy.But each analog assistant in designer of the present invention is filled a prescription by optimizing materials and consumption thereof, particularly to the introducing of oxidation inhibitor K21 and AX8900, 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.The present inventor finds under study for action, with the above-mentioned toughner 1AX8900 of formula of the present invention and the toughner 2EXL-2620 effect of influencing each other, simultaneously with above-mentioned oxidation inhibitor K21 synergistic, significantly strengthen toughness and the ageing-resistant performance of obtained PET/PC alloy, make product can erosion in outdoor for a long time through climate, make it shock resistance, not easy to crack, still there is stable, reliable high-performance in low temperature environment, be particularly conducive to for the preparation of outdoor products.
Above-mentioned one ageing-resistant high-ductility PET/PC alloy material, it specifically comprises the steps: will to be repeatedly uniformly mixed in rear feeding twin screw extruder in oxidation inhibitor, toughner, toughner 2, PET, PC loading stirrer in described ratio,
240-280 DEG Ctemperature under melting mixing, gained melt extruded by Twin screw extruder after through tank cooling, introduce dicing machine carry out pelletizing operation, gained pellet is described ageing-resistant high-ductility PET/PC alloy material.
Described repeatedly stirring refers to stirring repeatedly three times, and each churning time is
20-30minute.The rotating speed of described stirrer is
700-950rev/min.
The rotating speed improving stirrer can make each feed composition mix more fully thus obtain homogeneous product.But for some raw material, excessively slow stirring velocity is difficult to make it fully mix, and too high mixing speed easily causes the cracking of himself structure.The rotating speed of above-mentioned stirrer is that contriver 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.Smelting temperature of the present invention is selected according to the character of all kinds of raw material, and in this temperature range, all kinds of raw material is all fusible is thoroughly able to abundant mixing, and Yin Wendu is too low and melting mixing is thorough, and the not easily too high and cracking of Yin Wendu, rotten.Raw material only obtains abundant mixing and combines, the high-quality performance that the acquisition the present invention that could act synergistically pursues.
The rotating speed of described Twin screw extruder is
300-500rev/min.
Described melt extruded by Twin screw extruder after when tank cools, tank temperature used is
60-80dEG 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, designer 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.
The rotating speed of described dicing machine is
500-950rev/min.
Designer of the present invention finds in research practice; the too high meeting of dicing machine rotating speed makes that pellet volume is too small easily to rupture in follow-up tie rod operation; can be then that pellet is loose when dicing machine rotating speed is crossed slow, affect final pellet attractive in appearance while also can strengthen difficulty of processing in pellet application.And the pellet of each composition all has its suitable pellet size, for the present invention,
500-950rev/min the rotating speed of dicing machine farthest can promote outward appearance and the processing characteristics of product of the present invention.
Every test of product is shown, one of the present invention ageing-resistant high-ductility PET/PC alloy has the features such as high-performance, breach high-impact, high-tenacity, particularly can survive harsh weather corrode, super currently available products far away, can be used for outdoor electronic component, intelligent electric meter element, water meter element, instrument element, electric parts and terminal block.
Compared with prior art, the present invention has following beneficial effect:
1. the present invention selects toughness reinforcing 1AX8900 and toughner 2EXL-2620 to be added in PET/PC alloy especially, the two synergistic makes ageing-resistant high-ductility PET/PC alloy of the present invention show high-performance, high-impact, high-tenacity, the feature such as ageing-resistant, give full play of the advantage of PET/PC alloy, particularly in severe outdoor environment, effectively can resist weather to corrode, not easily aging, ageing-resistant performance reaches ash mark 5 grades, has significantly widened the range of application of PET/PC alloy material.
2. the present invention with the addition of oxidation inhibitor K21 in PET/PC alloy material, it not only effectively can delay the oxygenolysis of the present invention ageing-resistant high-ductility PET/PC alloy, make product life-time service still can have higher shock resistance effect, the ageing-resistant energy of the present invention's ageing-resistant high-ductility PET/PC alloy more can be strengthened further with AX8900 and toughner 2 synergistic, avoid its, damage aging, brittle because weather corrodes, effectively extend the work-ing life of obtained product.
3. the preparation method of ageing-resistant high-ductility PET/PC alloy 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 ageing-resistant high-ductility PET/PC alloy obtained by guarantee can realize the technique effect that the present invention pursues.
Embodiment
The present invention to be described in further detail below in conjunction with comparative example and embodiment for the ease of it will be appreciated by those skilled in the art that:
Embodiment 1
The present embodiment provides a kind of ageing-resistant high-ductility PET/PC alloy material, and its composition of raw materials is made up of each component of following weight part:
0.33 part, oxidation inhibitor;
Toughner 13.8 parts;
Toughner 23.4 parts;
PET55.47 part;
PC37 part
Described oxidation inhibitor is the composite antioxidant K21 that Hongjiang City is prosperous and Chemical Co., Ltd. produces, the AX8900 that described toughner 1 produces for French Arkema, the ROHM AND HAAS EXL-2620 of described toughner 2 for producing for Dow Chemical.
Above-mentioned PC and PET can select any one commercially available prod to realize.
Above-mentioned one ageing-resistant high-ductility PET/PC alloy material, it specifically comprises the steps: will to be repeatedly uniformly mixed in rear feeding twin screw extruder in oxidation inhibitor, toughner, toughner 2, PET, PC loading stirrer in described ratio,
260 DEG Ctemperature under melting mixing, gained melt extruded by Twin screw extruder after through tank cooling, introduce dicing machine carry out pelletizing operation, gained pellet is described ageing-resistant high-ductility PET/PC alloy material.
Described repeatedly stirring refers to stirring repeatedly three times, and each churning time is
27minute.The rotating speed of described stirrer is
830rev/min.
The rotating speed of described Twin screw extruder is
450rev/min.
Described melt extruded by Twin screw extruder after when tank cools, tank temperature used is
70dEG C.
The rotating speed of described dicing machine is
750rev/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
| Character | Method | Unit | Data |
| Proportion | ASTMD792 | — | 1.35 |
| Mould shrinks | ASTMD955 | % | 0.3-0.7 |
| Unit elongation | ASTMD638 | % | 19 |
| Tensile strength | ASTMD638 | Mpa | 45 |
| Flexural strength | ASTMD790 | Mpa | 75 |
| Bending modulus | ASTMD790 | Mpa | 2800 |
| Notched Izod impact strength (1/8 ") | ASTMD256 | J/M | 46 |
| Heat-drawn wire | ASTMD648 | ℃ | 138 |
| Flame resistivity | UL94 | (1/8") | V0 |
| Ageing-resistant performance | Xenon lamp aging case process 3000 hours | Ash mark | 5 grades |
| Uv-resistant intensity | Ultraviolet ray ageing case process 72 hours | Level | 5 |
| Drying temperature | — | ℃ | 90 |
| Time of drying | — | HR | 4 |
| Melt temperature | — | ℃ | 240-280 |
| Suggestion mould temperature | — | ℃ | 50 |
As seen from the above table, the ageing-resistant high-ductility PET/PC alloy that the present embodiment provides has the features such as high-performance, high-impact, high-tenacity, particularly still show good ageing-resistant performance in the process of xenon lamp aging case after 3000 hours, the far super currently available products of indicating meter ageing resistance, can be used for preparing the electronic component of outdoor use, intelligent electric meter element, water meter element, instrument element, electric parts and terminal block.
Embodiment 2
The present embodiment provides a kind of ageing-resistant high-ductility PET/PC alloy material, and its composition of raw materials is made up of each component of following weight part:
0.1 part, oxidation inhibitor;
Toughner 15 parts;
Toughner 22 parts;
PET52.90 part;
PC40 part
Described oxidation inhibitor is the composite antioxidant K21 that Hongjiang City is prosperous and Chemical Co., Ltd. produces, the AX8900 that described toughner 1 produces for French Arkema, the ROHM AND HAAS EXL-2620 of described toughner 2 for producing for Dow Chemical.
Above-mentioned PC and PET can select any one commercially available prod to realize.
Above-mentioned one ageing-resistant high-ductility PET/PC alloy material, it specifically comprises the steps: will to be repeatedly uniformly mixed in rear feeding twin screw extruder in oxidation inhibitor, toughner, toughner 2, PET, PC loading stirrer in described ratio,
240 DEG Ctemperature under melting mixing, gained melt extruded by Twin screw extruder after through tank cooling, introduce dicing machine carry out pelletizing operation, gained pellet is described ageing-resistant high-ductility PET/PC alloy material.
Described repeatedly stirring refers to stirring repeatedly three times, and each churning time is
30minute.The rotating speed of described stirrer is
700rev/min.
The rotating speed of described Twin screw extruder is
500rev/min.
Described melt extruded by Twin screw extruder after when tank cools, tank temperature used is
60dEG C.
The rotating speed of described dicing machine is
950rev/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
| Character | Method | Unit | Data |
| Proportion | ASTMD792 | — | 1.35 |
| Mould shrinks | ASTMD955 | % | 0.3-0.7 |
| Unit elongation | ASTMD638 | % | 19 |
| Tensile strength | ASTMD638 | Mpa | 45 |
| Flexural strength | ASTMD790 | Mpa | 75 |
| Bending modulus | ASTMD790 | Mpa | 2800 |
| Notched Izod impact strength (1/8 ") | ASTMD256 | J/M | 46 |
| Heat-drawn wire | ASTMD648 | ℃ | 138 |
| Flame resistivity | UL94 | (1/8") | V0 |
| Ageing-resistant performance | Xenon lamp aging case process 3000 hours | Ash mark | 5 grades |
| Uv-resistant intensity | Ultraviolet ray ageing case process 72 hours | Level | 5 |
| Drying temperature | — | ℃ | 90 |
| Time of drying | — | HR | 4 |
| Melt temperature | — | ℃ | 240-280 |
| Suggestion mould temperature | — | ℃ | 50 |
As seen from the above table, the ageing-resistant high-ductility PET/PC alloy that the present embodiment provides has the features such as high-performance, high-impact, high-tenacity, particularly still show good ageing-resistant performance in the process of xenon lamp aging case after 3000 hours, the far super currently available products of indicating meter ageing resistance, can be used for preparing the electronic component of outdoor use, intelligent electric meter element, water meter element, instrument element, electric parts and terminal block.
Embodiment 3
The present embodiment provides a kind of ageing-resistant high-ductility PET/PC alloy material, and its composition of raw materials is made up of each component of following weight part:
0.5 part, oxidation inhibitor;
Toughner 12 parts;
Toughner 25 parts;
PET62.50 part;
PC30 part
Described oxidation inhibitor is the composite antioxidant K21 that Hongjiang City is prosperous and Chemical Co., Ltd. produces, the AX8900 that described toughner 1 produces for French Arkema, the ROHM AND HAAS EXL-2620 of described toughner 2 for producing for Dow Chemical.
Above-mentioned PC and PET can select any one commercially available prod to realize.
Above-mentioned one ageing-resistant high-ductility PET/PC alloy material, it specifically comprises the steps: will to be repeatedly uniformly mixed in rear feeding twin screw extruder in oxidation inhibitor, toughner, toughner 2, PET, PC loading stirrer in described ratio,
280 DEG Ctemperature under melting mixing, gained melt extruded by Twin screw extruder after through tank cooling, introduce dicing machine carry out pelletizing operation, gained pellet is described ageing-resistant high-ductility PET/PC alloy material.
Described repeatedly stirring refers to stirring repeatedly three times, and each churning time is
20minute.The rotating speed of described stirrer is
950rev/min.
The rotating speed of described Twin screw extruder is
300rev/min.
Described melt extruded by Twin screw extruder after when tank cools, tank temperature used is
80dEG C.
The rotating speed of described dicing machine is
500rev/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
| Character | Method | Unit | Data |
| Proportion | ASTMD792 | — | 1.35 |
| Mould shrinks | ASTMD955 | % | 0.3-0.7 |
| Unit elongation | ASTMD638 | % | 19 |
| Tensile strength | ASTMD638 | Mpa | 45 |
| Flexural strength | ASTMD790 | Mpa | 75 |
| Bending modulus | ASTMD790 | Mpa | 2800 |
| Notched Izod impact strength (1/8 ") | ASTMD256 | J/M | 46 |
| Heat-drawn wire | ASTMD648 | ℃ | 138 |
| Flame resistivity | UL94 | (1/8") | V0 |
| Ageing-resistant performance | Xenon lamp aging case process 3000 hours | Ash mark | 5 grades |
| Uv-resistant intensity | Ultraviolet ray ageing case process 72 hours | Level | 5 |
| Drying temperature | — | ℃ | 90 |
| Time of drying | — | HR | 4 |
| Melt temperature | — | ℃ | 240-280 |
| Suggestion mould temperature | — | ℃ | 50 |
As seen from the above table, the ageing-resistant high-ductility PET/PC alloy that the present embodiment provides has the features such as high-performance, high-impact, high-tenacity, particularly still show good ageing-resistant performance in the process of xenon lamp aging case after 3000 hours, the far super currently available products of indicating meter ageing resistance, can be used for preparing the electronic component of outdoor use, intelligent electric meter element, water meter element, instrument element, electric parts and terminal block.
Embodiment 4
The present embodiment provides a kind of ageing-resistant high-ductility PET/PC alloy material, and its composition of raw materials is made up of each component of following weight part:
0.22 part, oxidation inhibitor;
Toughner 14.3 parts;
Toughner 24.1 parts;
PET49.5 part;
PC39 part
Described oxidation inhibitor is the composite antioxidant K21 that Hongjiang City is prosperous and Chemical Co., Ltd. produces, the AX8900 that described toughner 1 produces for French Arkema, the ROHM AND HAAS EXL-2620 of described toughner 2 for producing for Dow Chemical.
Above-mentioned PC and PET can select any one commercially available prod to realize.
Above-mentioned one ageing-resistant high-ductility PET/PC alloy material, it specifically comprises the steps: will to be repeatedly uniformly mixed in rear feeding twin screw extruder in oxidation inhibitor, toughner, toughner 2, PET, PC loading stirrer in described ratio,
250 DEG Ctemperature under melting mixing, gained melt extruded by Twin screw extruder after through tank cooling, introduce dicing machine carry out pelletizing operation, gained pellet is described ageing-resistant high-ductility PET/PC alloy material.
Described repeatedly stirring refers to stirring repeatedly three times, and each churning time is
22minute.The rotating speed of described stirrer is
900rev/min.
The rotating speed of described Twin screw extruder is
490rev/min.
Described melt extruded by Twin screw extruder after when tank cools, tank temperature used is
75dEG C.
The rotating speed of described dicing machine is
890rev/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
| Character | Method | Unit | Data |
| Proportion | ASTMD792 | — | 1.35 |
| Mould shrinks | ASTMD955 | % | 0.3-0.7 |
| Unit elongation | ASTMD638 | % | 19 |
| Tensile strength | ASTMD638 | Mpa | 45 |
| Flexural strength | ASTMD790 | Mpa | 75 |
| Bending modulus | ASTMD790 | Mpa | 2800 |
| Notched Izod impact strength (1/8 ") | ASTMD256 | J/M | 46 |
| Heat-drawn wire | ASTMD648 | ℃ | 138 |
| Flame resistivity | UL94 | (1/8") | V0 |
| Ageing-resistant performance | Xenon lamp aging case process 3000 hours | Ash mark | 5 grades |
| Uv-resistant intensity | Ultraviolet ray ageing case process 72 hours | Level | 5 |
| Drying temperature | — | ℃ | 90 |
| Time of drying | — | HR | 4 |
| Melt temperature | — | ℃ | 240-280 |
| Suggestion mould temperature | — | ℃ | 50 |
As seen from the above table, the ageing-resistant high-ductility PET/PC alloy that the present embodiment provides has the features such as high-performance, high-impact, high-tenacity, particularly still show good ageing-resistant performance in the process of xenon lamp aging case after 3000 hours, the far super currently available products of indicating meter ageing resistance, can be used for preparing the electronic component of outdoor use, intelligent electric meter element, water meter element, instrument element, electric parts and terminal block.
Embodiment 5
The present embodiment provides a kind of ageing-resistant high-ductility PET/PC alloy material, and its composition of raw materials is made up of each component of following weight part:
0.41 part, oxidation inhibitor;
Toughner 12.3 parts;
Toughner 22.6 parts;
PET65.9 part;
PC36 part
Described oxidation inhibitor is the composite antioxidant K21 that Hongjiang City is prosperous and Chemical Co., Ltd. produces, the AX8900 that described toughner 1 produces for French Arkema, the ROHM AND HAAS EXL-2620 of described toughner 2 for producing for Dow Chemical.
Above-mentioned PC and PET can select any one commercially available prod to realize.
Above-mentioned one ageing-resistant high-ductility PET/PC alloy material, it specifically comprises the steps: will to be repeatedly uniformly mixed in rear feeding twin screw extruder in oxidation inhibitor, toughner, toughner 2, PET, PC loading stirrer in described ratio,
270 DEG Ctemperature under melting mixing, gained melt extruded by Twin screw extruder after through tank cooling, introduce dicing machine carry out pelletizing operation, gained pellet is described ageing-resistant high-ductility PET/PC alloy material.
Described repeatedly stirring refers to stirring repeatedly three times, and each churning time is
27minute.The rotating speed of described stirrer is
780rev/min.
The rotating speed of described Twin screw extruder is
380rev/min.
Described melt extruded by Twin screw extruder after when tank cools, tank temperature used is
69dEG C.
The rotating speed of described dicing machine is
600rev/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
| Character | Method | Unit | Data |
| Proportion | ASTMD792 | — | 1.35 |
| Mould shrinks | ASTMD955 | % | 0.3-0.7 |
| Unit elongation | ASTMD638 | % | 19 |
| Tensile strength | ASTMD638 | Mpa | 45 |
| Flexural strength | ASTMD790 | Mpa | 75 |
| Bending modulus | ASTMD790 | Mpa | 2800 |
| Notched Izod impact strength (1/8 ") | ASTMD256 | J/M | 46 |
| Heat-drawn wire | ASTMD648 | ℃ | 138 |
| Flame resistivity | UL94 | (1/8") | V0 |
| Ageing-resistant performance | Xenon lamp aging case process 3000 hours | Ash mark | 5 grades |
| Uv-resistant intensity | Ultraviolet ray ageing case process 72 hours | Level | 5 |
| Drying temperature | — | ℃ | 90 |
| Time of drying | — | HR | 4 |
| Melt temperature | — | ℃ | 240-280 |
| Suggestion mould temperature | — | ℃ | 50 |
As seen from the above table, the ageing-resistant high-ductility PET/PC alloy that the present embodiment provides has the features such as high-performance, high-impact, high-tenacity, particularly still show good ageing-resistant performance in the process of xenon lamp aging case after 3000 hours, the far super currently available products of indicating meter ageing resistance, can be used for preparing the electronic component of outdoor use, intelligent electric meter element, water meter element, instrument element, electric parts and terminal block.
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 (1)
1. a preparation method for ageing-resistant high-ductility PET/PC alloy material, its composition of raw materials is made up of each component of following weight part:
Described oxidation inhibitor is the composite antioxidant K21 that Hongjiang City is prosperous and Chemical Co., Ltd. produces, the AX8900 that described toughner 1 produces for French Arkema, the ROHM AND HAAS EXL-2620 that described toughner 2 produces for Dow Chemical,
It specifically comprises the steps: will to be repeatedly uniformly mixed in rear feeding twin screw extruder in oxidation inhibitor, toughner 1, toughner 2, PET, PC loading stirrer according to ratio according to claim 1; melting mixing at the temperature of 240-280 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 ageing-resistant high-ductility PET/PC alloy material
Described repeatedly stirring refers to stirring repeatedly three times, and each churning time is 20-30 minute,
The rotating speed of described stirrer is 700-950 rev/min; the rotating speed of described Twin screw extruder is 300-500 rev/min; described melt extruded by Twin screw extruder after when tank cools, tank temperature used is 60-80 DEG C, and the rotating speed of described dicing machine is 500-950 rev/min.
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| CN102892561A (en) * | 2009-12-24 | 2013-01-23 | 出光兴产株式会社 | Method for recovering polycarbonate resin from waste optical disk and/or recovered optical disk, flame-retardant polycarbonate resin composition, injection molded article, and optical molded article |
| CN101914275A (en) * | 2010-08-12 | 2010-12-15 | 东莞市信诺橡塑工业有限公司 | Polycarbonate composition and preparation method thereof |
| CN103265801A (en) * | 2013-05-30 | 2013-08-28 | 惠州市昌亿科技股份有限公司 | Cold-resistant anti-corrosion glass fiber reinforced polycarbonate composite material as well as preparation method and applications thereof |
| CN103333470A (en) * | 2013-06-26 | 2013-10-02 | 苏州天脉导热科技有限公司 | A kind of heat conduction polyester resin material and preparation method thereof |
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