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Fire retardant PC/ABS alloy

An alloy and flame retardant technology, applied in the field of alloys, can solve the problems of poor comprehensive performance of flame retardant PC/ABS alloys, decrease in thermal deformation temperature of PC/ABS alloys, etc., and achieve the effect of excellent mechanical strength

Inactive Publication Date: 2007-12-26
MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of phosphate ester oligomers leads to a decrease in the heat distortion temperature of PC / ABS alloys.
[0005] In summary, the comprehensive performance of the flame-retardant PC / ABS alloy in the prior art is relatively poor

Method used

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  • Fire retardant PC/ABS alloy

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The flame retardant PC / ABS of the present invention comprises the following components: 10%-80% of PC, 10%-80% of ABS, 1%-30% of brominated polycarbonate oligomer, 1%-10% of Sb 2 o 3 , 0.1%-5% polytetrafluoroethylene, and optional stabilizers, reinforcing agents, pigments, fillers and other additives.

[0011] Wherein the PC (polycarbonate) that is applicable to the present invention is the homopolymerization or copolymerization PC of bisphenol A type, and its structural formula is as follows:

[0012]

[0013] Wherein A is a single bond, or C1-C5 alkyl, or C2-C5 alkylene, or C5-C6 cycloalkyl;

[0014] As mentioned above, PC is a linear or graft polymer, which can be halogen-free or halogen-substituted; it can also be a mixture of several PCs.

[0015] As mentioned above, PC can be produced by phosgene interfacial polymerization or by phosgene homogeneous polymerization. Its molecular weight can be controlled by chain terminators. The molecular weight range of t...

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Abstract

A flame-retarding PC / ABS alloy is proportionally prepared from PC, ABS, oligomer of brominated polycarbonate, Sb2O3, polytetrafluoro ethene, stabilizer, strengthening agent, pigment and filler through baking the raw materials at 90-100 deg.C for 4-6 hr, proportionally mixing at high speed, and dual-screw extruding out for granulating. It has high mechanical, thermodynamic and flame-retarding performance.

Description

【Technical field】 [0001] The invention relates to an alloy, in particular to a flame-retardant PC / ABS alloy. 【Background technique】 [0002] PC / ABS alloy is a kind of plastic with good comprehensive performance, which has the advantages of PC (polycarbonate) and ABS, that is, it has excellent mechanical properties and thermal properties, and has good formability and good stress cracking resistance. , suitable for forming large thin-walled parts. PC / ABS alloys are widely used in the automotive industry, household appliances, communication equipment such as mobile phones, and office equipment such as computers and printers. For safety considerations, people put forward higher requirements for the flame resistance of PC / ABS alloys. Therefore, people have conducted a lot of research on flame-retardant PC / ABS alloys. [0003] For example, in European Patent No. EP-A-0174493, a small molecule phosphoric acid ester (such as TPP) is used as a flame retardant to modify PC / ABS for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L27/06C08L55/02
Inventor 汪克风
Owner MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY