Flame-retardant high-property PC/ABS alloy and preparation method thereof

A high-performance, alloy technology, applied in the field of alloy materials, can solve the problems of undiscovered patent publications, unsatisfactory flame retardant effect, inability to dust flame retardant, etc., and achieves improved processing performance, reduced internal stress, and good flame retardant effect. Effect

Inactive Publication Date: 2015-12-02
天津思迈德高分子科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of the automobile industry, electrical and electronic industry, household appliances industry, and information and communication industry, not only the demand for plastic materials has increased significantly, but most of the PC / ABS with flame retardant function currently use a single flame retardant, which cannot It is good at flame retardant dust, but the flame retardant effect is not ideal, so new requirements are put forward for the flame retardant performance of the plastics used; in addition, most of the current PC / ABS does not have anti-corrosion function, and it can be used in high acid and high alkali In the case of high salt or high salt, its scope of use is limited, and the functions of existing PC / ABS alloys are relatively single and the cost is also high, so a new one with low cost and more advantages has been developed. PC / ABS alloy is very necessary
[0005] Through the search, no patent publications related to the patent application of the present invention have been found

Method used

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  • Flame-retardant high-property PC/ABS alloy and preparation method thereof
  • Flame-retardant high-property PC/ABS alloy and preparation method thereof
  • Flame-retardant high-property PC/ABS alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A flame-retardant high-performance PC / ABS alloy, the composition and mass parts of the alloy are as follows:

[0034]

[0035] The liquid flame retardant is diphenyl phosphate;

[0036] The solid flame retardant is a mixture of antimony trioxide and triphenyl phosphate, and the mass ratio of the two is 1:0.5;

[0037] The preparation method of described ABS / PP grafted maleic anhydride is as follows:

[0038] After uniformly mixing ABS, PP, maleic anhydride, initiator and stearic acid, put it into a high-speed mixer for preheating and stirring at a stirring speed of 800-1000 rpm, 90-100°C, stirring for 5 minutes, and then Send it into the twin-screw extruder, and the processing technology is as follows: from the feed port to the die head, the temperature in the first zone is 175-180°C, the temperature in the second zone is 175-180°C, the temperature in the third zone is 176-190°C, and the temperature in the fourth zone is 176-190°C , the temperature in the fifth zon...

Embodiment 2

[0048] A flame-retardant high-performance PC / ABS alloy, the composition and mass parts of the alloy are as follows:

[0049]

[0050] Wherein, the acrylonitrile-butadiene-styrene copolymer is composed of granular acrylonitrile-butadiene-styrene copolymer and powdered acrylonitrile-butadiene-styrene copolymer, the two The mass ratio is 4:1.

[0051] The liquid flame retardant is diphenyl phosphate;

[0052] The solid flame retardant is antimony trioxide;

[0053] The antioxidant is [β-(3,5-di-tert-butyl 4-hydroxyphenyl) propionate] pentaerythritol ester or tri(2,4-di-tert-butylphenol) phosphite;

[0054] The anti-dripping agent is polytetrafluoroethylene;

[0055] The flow agent is a mixture of ethylene bisstearamide and PE wax, and the mass ratio of the two is 1:0.5-0.9.

[0056] The preparation method of the flame-retardant high-performance PC / ABS alloy described above has the same steps as in Example 1.

Embodiment 3

[0058] A flame-retardant high-performance PC / ABS alloy, the composition and mass parts of the alloy are as follows:

[0059]

[0060] Wherein, the acrylonitrile-butadiene-styrene copolymer is composed of granular acrylonitrile-butadiene-styrene copolymer and powdered acrylonitrile-butadiene-styrene copolymer, the two The mass ratio is 1:1.

[0061] The solid flame retardant is a mixture of triphenyl phosphate and MAC, and the mass ratio of the two is 3:2-3;

[0062] The preparation method of described ABS / PP grafted maleic anhydride is as follows:

[0063] After uniformly mixing ABS, PP, maleic anhydride, initiator and stearic acid, put it into a high-speed mixer for preheating and stirring at a stirring speed of 800-1000 rpm, 90-100°C, stirring for 5 minutes, and then Send it into the twin-screw extruder, and the processing technology is as follows: from the feed port to the die head, the temperature in the first zone is 175-180°C, the temperature in the second zone is 1...

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Abstract

The invention relates to a flame-retardant high-property PC/ABS alloy. The alloy comprises the following components in parts by mass: 60-80 parts of polycarbonate, 20-30 parts of an acrylonitrile-butadiene-styrene copolymer, 30-40 parts of ABS/PP grafted maleic anhydride, 0.3-0.8 part of an anti-drip agent, 0.3-0.5 part of an antioxidant, 2-7 parts of a toughening agent, 0.1-0.5 part of a lubricant, 1-7 parts of an anti-stress cracking agent, 0.5-3 parts of a flowing agent, 10-20 parts of a macromolecule conductive polyaniline derivative, 2-7 parts of an anti-aging agent, 2-7 parts of nano boron carbide, 3-10 parts of a liquid flame retardant and 2-7 parts of a solid flame retardant. As the liquid flame retardant and the solid flame retardant are simultaneously used in the raw materials of the alloy provided by the invention, the alloy is very good in flame retardant effect, the flame retardant effect can be up to UL94-V0 grade, not only is dust prevented from combustion, but also the situation that the raw materials are volatilized as the reaction temperature is increased in the production process can be also avoided, and thus the raw materials are saved.

Description

technical field [0001] The invention belongs to the technical field of alloy materials, in particular to a flame-retardant high-performance PC / ABS alloy and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an increasingly widely used engineering plastic, which has comprehensive and stable mechanical properties, thermal properties and electrical properties. However, PC is expensive, has poor fluidity, high processing temperature (melting temperature), poor stress crack resistance, and it is difficult to make large thin-walled products. At the same time, PC is sensitive to gaps, and has poor hydrolysis stability and solvent resistance. Defects largely limit its practical application. [0003] Compared with PC, acrylonitrile-butadiene-styrene copolymer (ABS) is cheap, has excellent performance, good surface gloss, and is easy to process and shape, but its heat resistance is poor. Blending PC and ABS can obtain an alloy with good comprehensive ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L51/06C08L79/02C08L51/04C08L27/18C08K13/02C08K3/38C08K5/523C08K3/22C08K5/134C08K5/526C08F291/12C08F291/00C08F222/06B29C47/92B29C48/92
Inventor 滑鹏高纪洪绪
Owner 天津思迈德高分子科技股份有限公司
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