Halogen-free flame-retardant enhancement type polycarbonate composition

A polycarbonate, enhanced technology, applied in the field of halogen-free flame-retardant enhanced polycarbonate composition, can solve the problems of polycarbonate resin not very good, expensive fluorine compounds, high thermal decomposition temperature, etc., to achieve Good appearance, good processability and good effects of flame retardancy, heat resistance and dimensional stability

Active Publication Date: 2010-06-30
CHONGQNG PRET NEW MATERIAL +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fluorine compounds are expensive, and these materials alone do not work well with glass fiber reinforced polycarbonate resins, and in fact require additional additives, generally bromine-containing flame retardants
Due to the high processing temperature of glass fiber reinforced PC, the flame retardant used for PC requires a relatively high thermal decomposition temperature, and most of them

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] The technical characteristics of the present invention are further described below in conjunction with the examples, but the examples are only used to illustrate the present invention rather than limit the present invention.

[0019] PC resin and various additives are mixed at a high speed by a high-speed mixer, and then melted and extruded by a twin-screw extruder. The composition can be obtained by pellets, and the process temperature is 230-250°C. The processing temperature of the comparative example is 250-260°C.

[0020] Use the following materials:

[0021] PC Teijin, grade 100C

[0022] PC American Dow, grade 301-5

[0023] Manufactured by Fiberglass Jushi Group, brand ER-988

[0024] Brominated polycarbonate American Great Lakes grade BC-52

[0025] BDP Nanjing Hengqiao Industry and Trade Company

[0026] RDXP Japan Big Eight

[0027] PTFE produced by Shanghai Shangju Chemical Co., Ltd., PTFE content is 75%

[0028] HDPE 6070 Daqing Petrochemical

[002...

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PUM

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Abstract

The invention relates to a halogen-free flame-retardant enhancement type polycarbonate composition, which belongs to the field of polymer alloy, and consists of the following ingredients in parts by weight: 606-805 parts of PC-based resin, 100-300 parts of glass fiber, 40-60 parts of main flame retardant, 20-40 parts of flexibilizer, 3 parts of anti-dripping agent, 5-10 parts of lubricant and 4-6parts of antioxidant. The halogen-free flame-retardant enhancement type polycarbonate composition proposed by the technical scheme not only has the characteristics of high rigidity, heat resistance and good dimensional stability, but also has good processibility and fire resistance, and also has beautiful appearance, has no glass fiber exposed to the outside, and can be served as the special material of electrical products.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant reinforced polycarbonate composition, which belongs to the field of polymer alloys. Background technique [0002] This application relates to a method of imparting flame retardant properties to glass fiber reinforced polycarbonate resins, to compositions used in the method, and to such flame retardant polycarbonate resins produced by the method. [0003] Glass fiber reinforced polycarbonate resin has high strength and good appearance, and is widely used in the casing of various electrical appliances, especially suitable for injection molding of thin-walled parts. However, glass fiber reinforced polycarbonate resins are inherently flammable and the material can also melt and drip when heated, causing adjacent materials to catch fire. Therefore, in order to safely use glass fiber reinforced polycarbonate in many applications, effective flame retardants must be added to the material. Flame retardan...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08K13/04C08K5/523C08K7/14
Inventor 朱江磊陈永东张祥福周文
Owner CHONGQNG PRET NEW MATERIAL
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