CN102146203A - Platable polycarbonate/acrylonitrile-butadiene-styrene alloy material with high heat resistance and impact resistance - Google Patents
Platable polycarbonate/acrylonitrile-butadiene-styrene alloy material with high heat resistance and impact resistance Download PDFInfo
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- CN102146203A CN102146203A CN 201110104949 CN201110104949A CN102146203A CN 102146203 A CN102146203 A CN 102146203A CN 201110104949 CN201110104949 CN 201110104949 CN 201110104949 A CN201110104949 A CN 201110104949A CN 102146203 A CN102146203 A CN 102146203A
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Abstract
The invention relates to a platable polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) alloy material with high heat resistance and impact resistance. The alloy material comprises the following raw materials by weight percent: 20%-70% of PC (polycarbonate), 20%-75% of ABS (Acrylonitrile Butadiene Styrene), 2%-10% of butadiene type graft rubber, 0.2%-0.5% of calcium carbonate, 0%-1% of antioxidant and 0%-1% of lubricant. As butadiene type graft rubber MBS and calcium carbonate used as inorganic filler are added in the raw material formula of the PC/ABS alloy material, the electroplating performance of the material can be effectively increased while the material still has excellent mechanical properties, heat resistance and processability; and the material is easy to fill the large mould and can be used in the electroplating products in the vehicle and home appliance fields with higher heat resistant demands.
Description
Technical field
The invention belongs to technical field of polymer materials, be specifically related to a kind of PC/ABS high molecule alloy material of high heat-resistant high impact-resistant electrodepositable.
Background technology
It is good that polycarbonate (PC) plastics have the transparency, thermotolerance height, advantages such as good toughness; But its mobile poor, difficult forming, goods to the breach sensitivity, be easy to generate stress cracking, not anti-solvent, and costing an arm and a leg.Usually improve above-mentioned shortcoming by the method for preparing the PC high polymer alloy, the PC/ABS high polymer alloy is exactly wherein modal a kind of.
It is good that acrylonitrile-butadiene-phenylethene grafted copolymer (ABS) has surface gloss, and the mechanical property height is easy to characteristics such as forming process, and it has spraying property and plating performance preferably.In actual production, usually in the course of processing of ABS material, adopt electroplating technology to make the part of various surface property excellences, as the door handle on the automobile, grid, household electrical appliances are with ornamental strip etc.Electroplate the ABS product and have beautiful outward appearance, therefore good erosion resistance and weathering resistance are widely used.But neither all be fit to electroplating technology by all ABS, the ABS material that only reaches special plating grade just can satisfy galvanized requirement.In addition, ABS material self also exists poor heat resistance, the bad shortcoming of impelling strength, many times can not satisfy the requirement of using fully.
In order to solve the bad problem of ABS thermotolerance of electroplating, usually in the ABS material, add the PC component, make the PC/ABS alloy, make it have higher heat resisting temperature and excellent mechanical property.But because PC itself is not easy to electroplate, in general, PC content is many more among the PC/ABS, and the plating performance of material is just poor more.In order to improve the plating performance of PC/ABS material, there is patent report (CN101597782A) to utilize N, the dinethylformamide aqueous solution is as swelling agent, with MnO
2/ H
2SO
4Handle for micro-etching solution carries out chemical microetch to material surface, increase the surface adhesion force of material, thereby improve the method for electroplating performance, because the electroplating technology level is uneven, this method is not used fully, can not satisfy application demand well.In addition, when common PC/ABS material uses existing plating technology to electroplate, do not reach the requirement of tests such as high level sawing and salt fog usually yet.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, and the PC/ABS alloy material of a kind of good heat resistance, mechanical property excellence and electrodepositable is provided.
For solving above technical problem, the present invention takes following technical scheme:
A kind of PC/ABS alloy material, by weight percentage, its composition of raw materials comprises:
Polycarbonate 20% ~ 70%;
Styrene butadiene-acrylonitrile copolymer 20% ~ 75%;
Butadiene type graft rubber 2% ~ 10%;
Lime carbonate 0.2% ~ 0.5%;
Oxidation inhibitor 0% ~ 1%;
Lubricant 0% ~ 1%;
Described polycarbonate is the bisphenol A-type aromatic copolycarbonate of weight-average molecular weight between 20000～40000g/mol; The molar content of divinyl is between 15% ~ 25% in described styrene butadiene-acrylonitrile copolymer; Described butadiene type graft rubber is that methacrylate butadi ene styrene copolymer or butadiene content are in ABS high glue powder more than 60% or the combination of these two.
Preferably, the composition of raw materials of described PC/ABS alloy material (by weight percentage) comprising:
Polycarbonate 40% ~ 60%;
Styrene butadiene-acrylonitrile copolymer 30% ~ 55%;
Butadiene type graft rubber 3% ~ 7%;
Lime carbonate 0.3% ~ 0.5%;
Oxidation inhibitor 0.3% ~ 0.5%;
Lubricant 0.3% ~ 0.5%.
Preferably, described polycarbonate is the line style aromatic copolycarbonate, is the polycarbonate that feedstock production forms with the dihydroxyphenyl propane photoreactive gas preferably.
Preferably, the particle diameter of described lime carbonate is between 0.1 ~ 15 micron.
Preferably, described oxidation inhibitor is the mixture of Hinered phenols antioxidant and phosphite ester kind antioxidant.
Preferably, described lubricant is the stearate series lubricant agent.
PC/ABS alloy material of the present invention, the plastic processing technology that can select to use always prepares, and extrudes processing etc. as twin screw.
Because the enforcement of above technical scheme, the present invention compared with prior art has the following advantages:
PC/ABS alloy material of the present invention is owing to added butadiene type graft rubber MBS and mineral filler lime carbonate in composition of raw materials, by adjusting prescription, make material when having very good mechanical properties, also have good plating performance, and thermotolerance and processing forming are good, be easy to filling shaping large size mould, also better with its plating yield rate height of product, stability that PC/ABS alloy material of the present invention is made.
Embodiment
The present invention will be further described in detail below in conjunction with specific embodiment, but be not limited to these embodiment.
The prescription of each embodiment and Comparative Examples is listed in table 1;
Selected in the prescription of each embodiment and Comparative Examples:
Polycarbonate is selected from a kind of line style PC derived from the dihydroxyphenyl propane photoreactive gas of Dow Chemical company production and selling, and its trade mark is 300-10;
Styrene butadiene-acrylonitrile copolymer is selected from the ABS that the emulsion polymerization of BASF Aktiengesellschaft (BASF) production and selling makes, and its trade mark is GP-22;
The butadiene type graft rubber is selected from the methacrylate butadi ene styrene copolymer (MBS) of Korea S LG chemical company production and selling, its trade mark M-521, and it is a kind of toughner with nucleocapsid structure, is mainly material toughness is provided;
Mineral filler CaCO
3, company provides by the big Xiang in Wuhu, trade mark WX6000-E.
Oxidation inhibitor is selected from the Hinered phenols antioxidant and the phosphite ester kind antioxidant of Ciba company production and selling, and both also use; Lubricant is selected from the pentaerythritol stearate of LOZA company production and selling, and its trade mark is GLYCOLUBE-P.
The preparation method of each embodiment and Comparative Examples PC/ABS alloy material is as follows:
Join in the main barrel of twin screw extruder (screw diameter is 35mm, length-to-diameter ratio L/D=36) after will mixing by the compositing formula in the table 1 through exsiccant PC resin, ABS resin, MBS, mineral filler, oxidation inhibitor, lubricant; Each section of main barrel controlled temperature (exporting from charging opening to head) is respectively 220 ℃, 240 ℃, 255 ℃, 260 ℃, 250 ℃, the twin screw rotating speed is 300 rev/mins, the extruded stock bar promptly gets PC/ABS alloy material product of the present invention through tank cooling back pelletizing.
The prescription of each embodiment of table 1 and Comparative Examples
The said products after 4 hours, is injection molded into standard batten with plastic-injection moulding machine in 90 ℃ of dryings in convection oven, injection temperature is 250 ℃; The batten of injection formed is carried out performance test at least in 50% relative humidity, 23 ℃ of placements after 24 hours.
The product performance testing method is as follows:
Melting index: press ISO 1133 methods, test under 260 ℃, the 5 kilograms load.
Tensile property: press ISO 527 methods, draw speed 50 mm/min.
Bending property: press ISO 178 methods, trial speed 2 mm/min.
Notched Izod impact strength: press ISO 179/1eA method, the sample of 4 mm thick, simply supported beam notch shock.
Vicat softening temperature: press ISO 306 methods, 50 ℃/minute of temperature rise rates are tested under 5 kilograms of load.
Sawing test: carry out according to ASTM B571 method.
Salt-fog test: carry out according to ASTM B640 and ASTM-B-368 method.
Table 2 is listed in the over-all properties contrast of each embodiment and Comparative Examples material.
The over-all properties contrast of each embodiment of table 2 and Comparative Examples material
By table 2 as seen: the PC/ABS alloy material of the present invention's preparation is compared with Comparative Examples 1, has excellent more plating performance, has still kept higher heat resisting temperature and excellent mechanics simultaneously.Though Comparative Examples 1 material can because sticking power is not enough, make material have white mist to produce in the test rear surface in salt-fog test by the test of sawing experiment, can not satisfy the requirement of salt-fog test.The plating performance of Comparative Examples 2 reduces along with the increase of PC content, can not satisfy the requirement of use.In the material of the present invention, the adding of MBS and lime carbonate has effectively improved the plating performance of material.When various different PC content, can both reach the requirement of sawing test and salt-fog test by the plating performance of the PC/ABS alloy material of the present invention preparation, simultaneously still kept excellent mechanics and processing characteristics, can be applied to make requiring plated item such as heat-resisting higher automobile, household electrical appliances.
More than the present invention has been done detailed description; its purpose is to allow the personage that is familiar with this art can understand content of the present invention and is implemented; can not limit protection scope of the present invention with this; all equivalences of doing according to spirit of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (7)
1. PC/ABS alloy material, it is characterized in that: by weight percentage, its composition of raw materials comprises:
Polycarbonate 20% ~ 70%;
Styrene butadiene-acrylonitrile copolymer 20% ~ 75%;
Butadiene type graft rubber 2% ~ 10%;
Lime carbonate 0.2% ~ 0.5%;
Oxidation inhibitor 0% ~ 1%;
Lubricant 0% ~ 1%;
Described polycarbonate is the bisphenol A-type aromatic copolycarbonate of weight-average molecular weight between 20000～40000g/mol; The molar content of divinyl is between 15% ~ 25% in described styrene butadiene-acrylonitrile copolymer; Described butadiene type graft rubber is that methacrylate butadi ene styrene copolymer or butadiene content are in ABS high glue powder more than 60% or the combination of these two.
2. PC/ABS alloy material according to claim 1 is characterized in that: by weight percentage, its composition of raw materials comprises:
Polycarbonate 40% ~ 60%;
Styrene butadiene-acrylonitrile copolymer 30% ~ 55%;
Butadiene type graft rubber 3% ~ 7%;
Lime carbonate 0.3% ~ 0.5%;
Oxidation inhibitor 0.3% ~ 0.5%;
Lubricant 0.3% ~ 0.5%.
3. PC/ABS alloy material according to claim 1 and 2 is characterized in that: described polycarbonate is the line style aromatic copolycarbonate.
4. PC/ABS alloy material according to claim 3 is characterized in that: described polycarbonate is that feedstock production forms with the dihydroxyphenyl propane photoreactive gas.
5. PC/ABS alloy material according to claim 1 and 2 is characterized in that: the particle diameter of described lime carbonate is between 0.1 ~ 15 micron.
6. PC/ABS alloy material according to claim 1 and 2 is characterized in that: described oxidation inhibitor is the mixture of Hinered phenols antioxidant and phosphite ester kind antioxidant.
7. PC/ABS alloy material according to claim 1 and 2 is characterized in that: described lubricant is the stearate series lubricant agent.
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| CN 201110104949 CN102146203A (en) | 2011-04-26 | 2011-04-26 | Platable polycarbonate/acrylonitrile-butadiene-styrene alloy material with high heat resistance and impact resistance |
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| CN 201110104949 CN102146203A (en) | 2011-04-26 | 2011-04-26 | Platable polycarbonate/acrylonitrile-butadiene-styrene alloy material with high heat resistance and impact resistance |
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| CN102516735A (en) * | 2011-12-09 | 2012-06-27 | 上海锦湖日丽塑料有限公司 | Low-internal-stress electroplating PC/ABS alloy material and preparation method thereof |
| CN102532852A (en) * | 2012-01-06 | 2012-07-04 | 诸琦 | Electroplating polycarbonate (PC)/acrylonitrile butadiene styrene (ABS) alloy material and preparation method thereof |
| CN103059547A (en) * | 2013-01-30 | 2013-04-24 | 上海俊尔新材料有限公司 | Electroplating PC/ABS (polycarbonate/acrylonitrile-butadiene-styrene) alloy material and preparation method thereof |
| CN103304978A (en) * | 2013-07-08 | 2013-09-18 | 深圳市兴盛迪新材料有限公司 | Highly heat-resistant and impact-resistant polycarbonate composition and preparation method thereof |
| CN103602053A (en) * | 2013-11-05 | 2014-02-26 | 上海锦湖日丽塑料有限公司 | Easily-electroplated electroplating PC (polycarbonate)/ABS (acrylonitrile butadiene styrene) alloy material and preparation method thereof |
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| WO2017005682A1 (en) * | 2015-07-06 | 2017-01-12 | Covestro Deutschland Ag | Polycarbonate compositions for galvanic applications having a high requirement for heat distortion point |
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| CN106977874A (en) * | 2017-02-28 | 2017-07-25 | 绵阳朗迪新材料有限公司 | Halogen-free environment-friendly flame-proof ABS/PC resin alloys |
| CN107163335A (en) * | 2017-06-02 | 2017-09-15 | 冯新平 | A kind of preparation method of novel fire resistant PC ABSs |
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Application publication date: 20110810 |