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ABS (acrylonitrile butadiene styrene) halogen-free flame-retardant composite material and preparation method thereof

A flame retardant composite material and composite flame retardant technology are applied in the field of ABS halogen-free flame retardant composite material and its preparation, which can solve the problems of deterioration of ABS mechanical properties and processing performance, and high flame retardant addition amount, and improve mechanical properties. and machinability, improving flame retardant properties, and improving application performance

Inactive Publication Date: 2012-03-07
常熟市星源金属涂层厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the filler-type halogen-free flame retardants such as magnesium hydroxide, aluminum hydroxide, expanded graphite, and red phosphorus used in the prior art, the addition of flame retardants is too high, which seriously deteriorates the main mechanical properties and processing properties of ABS.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] A preparation method of BS halogen-free flame-retardant composite material, the preparation steps are:

[0038] (1) Weigh the raw materials according to the ratio of parts by mass;

[0039] (2) Add acrylonitrile-butadiene-styrene copolymer into the internal mixer to preheat for 5 minutes, then add compound flame retardant, synergistic flame retardant, organic clay, antioxidant, lubricant and compatibilizer agent, melt blending for 10-15min at 180-185°C, 50-60r / min;

[0040] (3) Preheat the molten blend with a flat vulcanizing agent for 3-5 minutes, then hot press at 180-185°C and 14-15MPa for 6-7 minutes, and then cold press at 14-15MPa for 3-5 minutes to form.

Embodiment 1

[0042] A preparation method of BS halogen-free flame-retardant composite material, the preparation steps are:

[0043] (1) Raw materials are weighed according to the ratio of parts by mass: acrylonitrile-butadiene-benzene synthesized by suspension graft copolymerization method, with a relative density of 1.0-1.1g / cm3 and a butadiene content of 17-70%. 80 parts of ethylene copolymer, 55 parts of composite flame retardant (including 22 parts of high-polymerization ammonium phosphate, 610 parts of polyamide, 623 parts of modified polyamide), 5 parts of 4A molecular sieve, 1 part of organic loess, 2, 0.5 parts of 2-methylene bis(4-methyl-6-tert-butylphenol), 3 parts of ethylene bis stearamide, grafted material of ABS and maleic anhydride with a grafting rate of 0.5-3% 7 copies;

[0044] (2) Add acrylonitrile-butadiene-styrene copolymer to the internal mixer to preheat for 5 minutes, then add compound flame retardant, 4A molecular sieve, organic loess, 2,2-methylenebis(4-formazol ...

Embodiment 2

[0047] A preparation method of BS halogen-free flame-retardant composite material, the preparation steps are:

[0048](1) Raw materials are weighed according to the ratio of parts by mass: acrylonitrile-butadiene-benzene synthesized by suspension graft copolymerization method, with a relative density of 1.0-1.1g / cm3 and a butadiene content of 17-70%. 90 parts of ethylene copolymer, 50 parts of composite flame retardant (including 20 parts of high-polymerization ammonium phosphate, 615 parts of polyamide, 615 parts of modified polyamide), 9 parts of 4A molecular sieve, 3 parts of organic red clay, antioxidant 10100.3 parts, 2 parts of monoglyceride stearate, 5 parts of grafts of ABS and maleic anhydride with a graft rate of 0.5-3%;

[0049] (2) Add acrylonitrile-butadiene-styrene copolymer to the internal mixer to preheat for 5 minutes, then add compound flame retardant, 4A molecular sieve, organic red clay, antioxidant 1010, monoglyceride stearate and The grafted material of ...

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PUM

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Abstract

The invention relates to an ABS (acrylonitrile butadiene styrene) halogen-free flame-retardant composite material. The ABS halogen-free flame-retardant composite material comprises the following raw material components in parts by weight: 80-100 parts of acrylonitrile-butadiene-styrene copolymer, 40-55 parts of composite flame retardant, 5-12 parts of synergistic flame retardant, 1-5 parts of organic clay, 0.1-0.5 part of antioxidant, 1-3 parts of lubricating agent and 3-7 parts of compatilizer. The ABS halogen-free flame-retardant composite material prepared by the method provided by the invention has the characteristics of good flame retardance and excellent mechanical property and processing performance.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to an ABS halogen-free flame-retardant composite material and a preparation method thereof. Background technique [0002] Acrylonitrile-butadiene-styrene copolymer (ABS) is a widely used general-purpose thermoplastic engineering plastic, which is a terpolymer of acrylonitrile, butadiene and styrene monomers. It consists of graft copolymer (with polybutadiene as the main chain, styrene and acrylonitrile copolymer as branches), random copolymer of styrene and acrylonitrile (AS resin) and ungrafted free butadiene Diene is composed of three main components, so it is not simply a copolymer or mixture of these three monomers. ABS resin not only has excellent mechanical properties of toughness, hardness, and rigid phase balance, but also has good chemical resistance, dimensional stability, surface gloss, low temperature resistance, coloring performance, and processing fluidity. It can be ...

Claims

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Application Information

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IPC IPC(8): C08L55/02C08L77/02C08K13/06C08K3/32C08K3/34
Inventor 顾丹
Owner 常熟市星源金属涂层厂
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