High-fluidity polycarbonate alloy and preparation method thereof

A polycarbonate, high fluidity technology, applied in the field of polycarbonate alloy and its preparation, high fluidity polycarbonate alloy and its preparation, can solve the problems of precipitation, toughness reduction, material toughness and heat resistance reduction, etc. , to achieve the effect of simple molecular structure, improved fluidity and low surface tension

Active Publication Date: 2016-11-23
JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In recent years, electronic or electrical products have been developing towards thinner and larger products, so it is necessary to further improve the fluidity of PC/ABS, but using low molecular weight polycarbonate or increasing the amount of ABS or BDP will bring toughness Lower and other bad defects
[0004] There is prior art to disclose a kind of method of high flow polycarbonate composition, in it, a large amount of adding pentaerythritol monostearate is used as flow modifier, while improving the melt index of polycarbonate composition, can not Avoid reducing the impact strength and heat resistance of the material, and adding a large amount

Method used

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  • High-fluidity polycarbonate alloy and preparation method thereof
  • High-fluidity polycarbonate alloy and preparation method thereof
  • High-fluidity polycarbonate alloy and preparation method thereof

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Embodiment Construction

[0033] The present invention will be further described below in conjunction with specific examples and comparative examples. The following specific examples are all preferred embodiments of the present invention, but the embodiments of the present invention are not limited by the following examples, especially not limited to The models of each component raw material used in the following specific examples.

[0034] Selection of raw materials for each component used:

[0035] Polycarbonate PC S-2000F (Mitsubishi, Japan) has a viscosity average molecular weight of 25,000. The butadiene copolymer is selected from ABS: PA-757 prepared by the emulsion method (Chimei, Taiwan). Toughening agent: EM500 (Korea LG). Fluorinated polyolefin: low molecular weight modified PFTE (tetrafluoroethylene-hexafluoroethylene copolymer, weight average molecular weight 320000). Other additives: Antioxidant AO1076, β-(3,5-di-tert-butyl-4-hydroxyphenyl) n-octadecyl propionate, its CAS NO.: [2082-79-...

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Abstract

The invention discloses a high-fluidity polycarbonate alloy and a preparation method thereof. The polycarbonate alloy is prepared through the step that low molecular weight fluoro polyolefin which has specific content and is within specific molecular weight is added in a polycarbonate combination composed of polycarbonate, styrene-butadiene copolymers, flexibilizer, flame retardant and other auxiliaries; on the condition that other properties such as flame retardance, a thermal property and a mechanical property of the material of the combination are not changed, the fluidity of the material can be greatly improved, when the production time is prolonged, the improvement of fluidity is more obvious, and the high-fluidity polycarbonate alloy is suitable for occasions high in use environment requirement.

Description

technical field [0001] The invention relates to a polycarbonate alloy and a preparation method thereof, in particular to a high fluidity polycarbonate alloy and a preparation method thereof, and belongs to the technical field of polymer composite material engineering plastics. Background technique [0002] In order to improve the shortcomings of polycarbonate (PC) such as poor processability, rubber modified polymers can usually be added to it. Most of the rubber modified polymers are mainly butadiene copolymers, especially PC and acrylonitrile- The PC / ABS alloy with butadiene-styrene graft copolymer (ABS) as the main raw material is an important improvement direction. On the one hand, it can improve the heat resistance and tensile strength of ABS, and on the other hand, it can reduce the Melt viscosity, improve processing performance, reduce product internal stress and impact strength sensitivity to product thickness. [0003] In PC / ABS alloys, bisphenol A-phenyl phosphate...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L55/02C08L27/18C08K5/134
CPCC08L69/00C08L2201/02C08L2205/035C08L55/02C08L27/18C08K5/1345
Inventor 董相茂田征宇刘贤文张永岑茵佟伟丁超
Owner JIANGSU KINGFA SCI & TECH ADVANCED MATERIALS CO LTD
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