Fire retardant PC/ABS alloy material without halide and phosphate and its prepn process

A technology of alloy materials and flame retardants, which is applied in the field of halogen-free and phosphorus-free flame-retardant PC/ABS alloy materials and its preparation, can solve the problems of environmental pollution and non-environmental protection, and achieve the effect of moderate cost and high gloss

Inactive Publication Date: 2007-12-19
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the traditional flame-retardant PC/ABS alloy containing halogens and phosphorus elements that are not environmentally friendly and pollute the environment, and provide a fla

Method used

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  • Fire retardant PC/ABS alloy material without halide and phosphate and its prepn process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] By weight percentage, resin polycarbonate (PC) 91.2%, acrylonitrile-butadiene-styrene terpolymer (ABS) 6.0%, compatibilizer (SMA) 1.0%, flame retardant PTFE 0.3%, Silicone flame retardant 1.0%, diphenyl sulfone sulfonate KSS 0.1%, antioxidant tetrakis[β-(3',5'-di-tert-butyl-4'-hydroxyphenyl) propionate] pentaerythritol ester 0.05%; Antioxidant (2,4 di-tert-butylphenyl) phosphite triester is 0.05%, lubricant ethylene bis stearamide (EBS) 0.2%, mix in high-speed mixer for 4 minutes;

[0035] Put the homogeneously mixed components in a twin-screw extruder, melt, mix, extrude and granulate;

[0036] Twin-screw extruder Zone 1 temperature: 230~235℃, Zone 2 temperature: 240~245℃, Zone 3 temperature: 250~255℃, Zone 4 temperature: 250~260℃, Zone 5 temperature: 240~245℃, Six zone temperature: 230~235℃, residence time 1-2 minutes, host speed: 300-350rpm.

Embodiment 2

[0038] By weight percentage, resin polycarbonate (PC) 87.0%, acrylonitrile-butadiene-styrene terpolymer (ABS) 7.0%, compatibilizer (SMA) 3.0%, flame retardant PTFE 0.5%, Silicone flame retardant 1.5%, diphenyl sulfone sulfonate KSS 0.5%, antioxidant tetrakis[β-(3',5'-di-tert-butyl-4'-hydroxyphenyl) propionate] pentaerythritol ester 0.1%; antioxidant (2,4 di-tert-butylphenyl) phosphite triester is 0.1%; lubricant ethylene bis stearamide (EBS) 0.3%, mixed in a high-speed mixer for 4 minutes;

[0039] Put the homogeneously mixed components in a twin-screw extruder, melt, mix, extrude and granulate;

[0040]Twin-screw extruder Zone 1 temperature: 230~235℃, Zone 2 temperature: 240~245℃, Zone 3 temperature: 250~255℃, Zone 4 temperature: 250~260℃, Zone 5 temperature: 240~245℃, Six-zone temperature: 230-235°C, residence time 1-2 minutes, host speed: 300-350rpm.

Embodiment 3

[0042] By weight percentage, resin polycarbonate (PC) 83.5%, acrylonitrile-butadiene-styrene terpolymer (ABS) 9.4%, compatibilizer (SMA) 3.0%, flame retardant PTFE 0.6%, Silicone flame retardant 2.5%, diphenyl sulfone sulfonate KSS 0.5%, antioxidant tetrakis[β-(3',5'-di-tert-butyl-4'-hydroxyphenyl) propionate] pentaerythritol ester 0.1%; antioxidant (2,4 di-tert-butylphenyl) phosphite triester is 0.1%; lubricant ethylene bis stearamide (EBS) 0.3%, mixed in a high-speed mixer for 4 minutes;

[0043] The uniformly mixed raw materials are placed in a twin-screw extruder, melted, mixed, extruded and granulated;

[0044] Twin-screw extruder Zone 1 temperature: 230~235℃, Zone 2 temperature: 240~245℃, Zone 3 temperature: 250~255℃, Zone 4 temperature: 250~260℃, Zone 5 temperature: 240~245℃, Six-zone temperature: 230-235°C, residence time 1-2 minutes, host speed: 300-350rpm.

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Abstract

The fire retardant PC/ABS alloy material without halide and phosphate consists of polycarbonate 65.5-91.2 wt%, acrylonitrile-butadiene-styrene ternary copolymer 6-17 wt%, compatilizer 1.0-4.0 wt%, fire retardant PTFE 0.3-1.5 wt%, organosilicon fire retardant 1.0-8.0 wt%, diphenyl sulfone sulfonate 0.1-1.0 wt%, antioxidant 0.1-1.0 wt% and lubricant 0.2-2.0 wt%. The present invention also provides the preparation process of the alloy material. The alloy material is environment friendly, and may be applied widely in automobile industry, electronic industry, electric industry and mechanical industry.

Description

technical field [0001] The invention relates to a halogen-free and phosphorus-free flame-retardant PC / ABS alloy material and a preparation method thereof. The alloy can be widely used in the automobile industry, the electrical and electronic industry, and the machinery industry with high environmental protection requirements, and belongs to the technology of polymer materials. field. Background technique [0002] Polycarbonate (PC) is an increasingly widely used engineering plastic, which has comprehensive and stable mechanical properties, thermal properties and electrical properties, and its output is only second to nylon (PA). It has excellent properties such as impact resistance, dimensional stability, heat resistance, and transparency. However, some of its disadvantages, such as difficult processing, large residual stress of products, easy stress cracking, sensitivity to notch, poor solvent resistance and poor wear resistance, etc., restrict its application in many fiel...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08K5/54B29C47/40B29C47/92B29B9/12C08L55/02C08L27/18C08K5/42C08K5/524C08K5/20B29C48/92B29C48/95
CPCB29C47/92B29C48/95
Inventor 徐东贺永徐建辉
Owner SHENZHEN KEJU NEW MATERIAL
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