Intumescent flame-retardant reinforced PC (Polycarbonate)/ABS (Acrylonitrile Butadiene Styrene) alloy and preparation method thereof

An intumescent and alloy technology, which is applied in the field of intumescent flame-retardant reinforced polycarbonate/acrylonitrile-styrene-butadiene alloy and its preparation, to reduce the defective rate of products and improve processability

Inactive Publication Date: 2014-07-30
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is no report about a new type of intumescent flame-retardant reinforced PC / ABS alloy and its preparation method.

Method used

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  • Intumescent flame-retardant reinforced PC (Polycarbonate)/ABS (Acrylonitrile Butadiene Styrene) alloy and preparation method thereof
  • Intumescent flame-retardant reinforced PC (Polycarbonate)/ABS (Acrylonitrile Butadiene Styrene) alloy and preparation method thereof
  • Intumescent flame-retardant reinforced PC (Polycarbonate)/ABS (Acrylonitrile Butadiene Styrene) alloy and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh raw materials by weight ratio:

[0028] (1) polycarbonate / acrylonitrile-styrene-butadiene alloy, its parts by weight are composed as follows:

[0029]

[0030] Among them, the toughening agent used is ethylene octene copolymer, the flame retardant is an intumescent flame retardant, a mixture composed of polyaminocyclotriphosphazene and tris (2-hydroxyethyl) isocyanurate, poly Aminocyclotriphosphazene was 5% of the total formulation and tris(2-hydroxyethyl)isocyanurate was 5% of the total formulation. The antioxidant is 4,4'-thiobis(6-tert-butyl-3-methylphenol), the glass fiber is alkali-free long glass fiber whose surface is treated with silane coupling agent, and the compatibilizer is styrene bonded branched maleic anhydride.

[0031] The preparation process is as follows:

[0032] (2) Mix the above components evenly with a mixer, and add other raw materials except glass fiber from the main feed of the twin-screw extruder.

[0033] (3) The alkali-free long...

Embodiment 2

[0036] (1) polycarbonate / acrylonitrile-styrene-butadiene alloy, its parts by weight are composed as follows:

[0037]

[0038] Among them, the toughening agent used is ethylene butene copolymer, the flame retardant is an intumescent flame retardant, a mixture composed of polyaminocyclotriphosphazene and tris (2-hydroxyethyl) isocyanurate, poly Aminocyclotriphosphazene was 7.5% of the total formulation and tris(2-hydroxyethyl)isocyanurate was 7.5% of the total formulation. Antioxidant is β-(3,5-tertiary butyl-4-hydroxyphenyl) octadecyl propionate, glass fiber is alkali-free long glass fiber whose surface is treated with silane coupling agent, compatibilizer Styrene grafted maleic anhydride.

[0039] The preparation process is as follows:

[0040] (2) Mix the above components evenly with a mixer, and add other raw materials except glass fiber from the main feed of the twin-screw extruder.

[0041] (3) The alkali-free long glass fiber with a weight ratio of 10% is added fro...

Embodiment 3

[0044] (1) polycarbonate / acrylonitrile-styrene-butadiene alloy, its parts by weight are composed as follows:

[0045]

[0046] Wherein, the toughening agent used is a mixture of ethylene butene copolymer and ethylene propylene copolymer. The flame retardant is an intumescent flame retardant, a mixture of polyaminocyclotriphosphazene and tris (2-hydroxyethyl) isocyanurate, polyaminocyclotriphosphazene is 7.5% of the total formula, three (2-Hydroxyethyl)isocyanurate was 7.5% of the total formulation. The antioxidant is a mixture of triphosphite (2,4-di-tert-butylphenyl) and bis(2,4-di-tert-butylphenyl) pentaerythritol diphosphite. The glass fiber is an alkali-free long glass fiber whose surface is treated with a silane coupling agent. The compatibilizer is styrene grafted maleic anhydride.

[0047] The preparation process is as follows:

[0048] (2) Mix the above components evenly with a mixer, and add other raw materials except glass fiber from the main feed of the twin-...

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Abstract

The invention relates to an intumescent flame-retardant reinforced PC (Polycarbonate) / ABS (Acrylonitrile Butadiene Styrene) alloy and a preparation method thereof. The intumescent flame-retardant reinforced PC / ABS alloy is prepared from the following components in parts by weight: 40-60 parts of PC, 10-25 parts of ABS, 1-10 parts of toughening agent, 3-10 parts of compatilizer, 10-20 parts of glass fiber, 10-20 parts of flame retardant and 0.1-0.5 part of antioxidant. The preparation method comprises the steps of proportioning according to the weight ratio, placing other raw materials except for glass fiber into a high-speed mixer to mix for 2-5min, and adding the mixture through a first-section drum of a double-screw extruder; adding glass fiber through a fourth-section drum of the double-screw extruder; and controlling the rotating speed of the double-screw extruder at 300-500r / min, extruding and granulating to prepare the PC / ABS alloy. The vertical combustion grade of the intumescent flame-retardant reinforced PC (Polycarbonate) / ABS alloy is UL94V-0(3.2mm). In addition, the intumescent flame-retardant reinforced PC (Polycarbonate) / ABS alloy is free of pollution during combustion so as to be capable of generating nontoxic gases during combustion, favorable in environment friendliness, little in influence to the mechanical performance of a material and favorable in mechanical performance.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an intumescent flame-retardant reinforced polycarbonate / acrylonitrile-styrene-butadiene alloy and a preparation method thereof. Background technique [0002] Among polymer materials, PC / ABS (polycarbonate / acrylonitrile-styrene-butadiene copolymer) alloy is an engineering plastic with better comprehensive performance, which has the advantages of both PC and ABS, and has excellent mechanical properties. Performance and thermal properties, and has good formability, good resistance to stress cracking, suitable for forming large thin-walled parts. Therefore, PC / ABS alloys are widely used in the fields of automobiles, electrical and electronic, office and communication equipment. In recent years, in order to meet the special requirements of fire safety in the application field (especially electronic and electrical products), the flame retardant technology of PC / ABS alloy has become a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L85/02C08K9/06C08K7/14C08K5/3492C08G79/02B29C47/92B29C48/92C08G79/025
CPCB29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/40B29C48/92B29C2948/9259C09K21/12
Inventor 王锡军陈晓东徐群杰王瑞元付杰辉
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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