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A polycarbonate composite material

A polycarbonate and composite material technology, which is applied in the field of polymer material modification, can solve the problems of reduced molding stability and sharp drop in molding toughness, and achieve the effects of avoiding pretreatment, improving molding toughness, and excellent flexural modulus.

Active Publication Date: 2018-07-27
辽宁金发科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Better rigidity can be obtained by adding fillers in polycarbonate, but the fillers will inevitably bring basic metal ions, the presence of basic metal ions will not only affect the color of the filler, but also cause molding in PC products Sudden drop in toughness and reduction in molding stability

Method used

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  • A polycarbonate composite material

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Experimental program
Comparison scheme
Effect test

Embodiment 1-14 and comparative example 1-2

[0057] Embodiment 1-14 and comparative example 1-2: the preparation of polycarbonate composite material

[0058] According to the formula shown in Table 1, polycarbonate, ABS resin, copper-containing compounds, and fillers are blended in a high mixer to obtain a pretreated resin matrix; weigh the pretreated resin matrix and other additives in proportion Finally, blending is completed by a high-speed mixer or a mixer, the extrusion temperature is 240 ° C, cooled by water, and pelletized to obtain a polycarbonate composite material with columnar particles. The ratio of each component and performance test results are shown in Table 1.

[0059] Various performance evaluation methods:

[0060] (1) Flexural modulus:

[0061] The polycarbonate composite material is injection molded at an injection temperature of 260°C, the mold temperature is 100°C, and the test piece with a sample size of 12.6mm*3.2mm and a length greater than 100mm is used to measure At a flexural modulus of 23°...

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Abstract

The invention discloses a polycarbonate composite. The polycarbonate composite comprises, in parts by weight, 30-80 parts of polycarbonate, 5-40 parts of ABS (acrylonitrile butadiene styrene) and 5-80 parts of filler, wherein on the basis of the total weight of the polycarbonate composite, the weight content of copper elements is 0.01 ppm-20 ppm. A copper-containing compound with lower soluble copper content is added to the composite, and the content of the copper elements in the composite is controlled in the range of 0.01-20 ppm to reduce or avoid addition of other copper-containing compounds, pretreatment of filler powder can be avoided, and alkaline ions in a system can be stabilized, so that the prepared polycarbonate composite has remarkably improved forming toughness and forming use stability and further can combine the rigidity of the filler.

Description

technical field [0001] The invention belongs to the field of polymer material modification, and in particular relates to a polycarbonate composite material with improved molding toughness and molding stability. Background technique [0002] Polycarbonate PC has excellent heat resistance and high impact resistance, and is widely used in the field of exterior materials such as electrical / electronic products and automotive parts. In recent years, the thinning of molded articles molded from resin compositions has progressed, and demands for improvement in various physical properties of molded articles have been increasing. [0003] Better rigidity can be obtained by adding fillers in polycarbonate, but the fillers will inevitably bring basic metal ions, the presence of basic metal ions will not only affect the color of the filler, but also cause molding in PC products Sudden drop in toughness and reduction in molding stability. [0004] The present invention has surprisingly f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L69/00C08L55/02C08L51/04C08K13/02C08K3/34C08K5/134C08K5/526C08K5/103
CPCC08L69/00C08L2205/03C08L55/02C08L51/04C08K13/02C08K3/34C08K5/1345C08K5/526C08K5/103
Inventor 佟伟岑茵艾军伟谢修好董相茂陈勇文孙东海叶南飚
Owner 辽宁金发科技有限公司
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