Halogen-free flame-retardant high-liquidity PC/ABS material used for shells of TV sets and preparation method of PC/ABS material

A TV shell and ABS material technology, applied in the field of thermoplastic polymer materials, can solve the problems of not being able to meet environmental protection requirements, fluidity needs to be further improved, and achieve the effect of large cost advantage, good fluidity, and guaranteed impact toughness

Inactive Publication Date: 2016-01-06
FENGHUA XURI HONGYU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above invention uses brominated flame retardant system, which cannot meet the requirements of environmental protection. In addition, the fluidity needs to be further improved

Method used

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  • Halogen-free flame-retardant high-liquidity PC/ABS material used for shells of TV sets and preparation method of PC/ABS material
  • Halogen-free flame-retardant high-liquidity PC/ABS material used for shells of TV sets and preparation method of PC/ABS material
  • Halogen-free flame-retardant high-liquidity PC/ABS material used for shells of TV sets and preparation method of PC/ABS material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The weight percent of the halogen-free flame-retardant high-flow PC / ABS material used for the TV casing of embodiment 1 consists of: PC: 65.4%, ABS: 13%, bisphenol A-bis(diphenyl phosphate): 14%, Maleic anhydride grafted ABS with a graft rate of 1%: 1%, butadiene copolymer: 5%, stearic acid amide: 0.6%, tetrakis[β-(3,5-di-tert-butyl-4 -Hydroxyphenyl)propionic acid]pentaerythritol ester and tris(2,4-di-tert-butylphenyl phosphite) in a weight ratio of 1:2: 0.4%, polytetrafluoroethylene Acrylate-modified polytetrafluoroethylene anti-dripping agent with a content of 50% by weight and whose surface is graft-modified with styrene-acrylonitrile copolymer: 0.6%, and its preparation method includes the following steps:

[0026] 1) Dry PC and ABS in a blast dryer at 120°C for 3.5 hours respectively, and set aside;

[0027] 2) Prepare various raw materials according to the weight percentage composition;

[0028] 3) PC, ABS, maleic anhydride grafted ABS, butadiene copolymer, stea...

Embodiment 2

[0030]The weight percent of the halogen-free flame-retardant high-flow PC / ABS material used for the TV casing of embodiment 2 consists of: PC: 65.5%, ABS: 14%, resorcinol bis(diphenyl phosphate): 13.5%, Methyl methacrylate-glycidyl methacrylate-ethyl acrylate terpolymer with a melt index of 8g / 10min: 1%, methyl methacrylate-butadiene-styrene copolymer 2%, ethylene- Butyl acrylate-maleic anhydride copolymer 2.5%, pentaerythritol stearate: 0.6%, tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and triphosphite (2,4-di-tert-butylphenyl ester) compounded at a weight ratio of 1:2: 0.4%, acrylate-modified polystyrene-acrylonitrile copolymer graft-modified surface Tetrafluoroethylene anti-dripping agent: 0.5%, its preparation method comprises the following steps:

[0031] 1) Dry PC and ABS in a blast dryer at 110°C for 4 hours respectively, and set aside;

[0032] 2) Prepare various raw materials according to the weight percentage composition;

[00...

Embodiment 3

[0035] The percentage by weight of the halogen-free flame-retardant high-flow PC / ABS material used for the TV casing of Example 3 consists of: PC: 65.6%, ABS: 15%, organosilicon flame retardant: 13%, and grafting rate: 1.1% Acrylonitrile-styrene copolymer grafted glycidyl methacrylate: 1%, rubber content: 60% core-shell structure methyl methacrylate-butadiene-styrene copolymer: 4 %, N, N-ethylene bis stearic acid amide: 0.5%, tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and phosphite tris(2,4 -di-tert-butylphenyl ester) compounded at a weight ratio of 1:2: 0.4%, acrylate-modified polytetrafluoroethylene graft-modified with styrene-acrylonitrile copolymer on the surface Anti-dripping agent: 0.5%, its preparation method comprises the following steps:

[0036] 1) Dry PC and ABS in a blast dryer at 125°C for 4 hours respectively, and set aside;

[0037] 2) Prepare various raw materials according to the weight percentage composition;

[0038] ...

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Abstract

The invention provides a halogen-free flame-retardant high-liquidity PC / ABS material used for shells of TV sets and a preparation method of the PC / ABS material. The PC / ABS material is prepared from, by weight, 60-80% of PC, 6-18% of ABS, 7-15% of halogen-free flame retardants, 0.5-4.0% of compatilizers, 0.5-5.0% of toughing agents, 0.3-2.5% of machining auxiliaries, 0.1-0.6% of antioxidants and 0.2-1.0% of anti-dripping agents, wherein the PC is composed of polycarbonate with the molecular weight being 10,000-40,000 and the melt index being 20-30 g / 10min, and the ABS is acrylonitrile-butadiene-styrene copolymer with the liquidity being 20-40 g / 10min and the weight percent being 10-40%. According to the halogen-free flame-retardant high-liquidity PC / ABS material, due to the fact that the halogen-free flame retardants, the compatilizer, the toughing agents, the machining auxiliaries, the antioxidants and the anti-dripping agents are added in the selected PC and ABS base materials, the PC / ABS alloy material is good in liquidity and can meet the forming requirement of large thin-walled products, meanwhile, impacting toughness of the thin-walled products can be guaranteed, and the PC / ABS material is mainly applied to shells of TV sets, shells of printing machines and other large thin-walled electronic and electric products, can replace imported products such as Korea Sanyang PC / ABS NH-1000T and has large cost advantages.

Description

technical field [0001] The invention belongs to the technical field of thermoplastic polymer materials, and in particular relates to a halogen-free flame-retardant high-flow PC / ABS material for a TV casing and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance, which has the characteristics of high impact strength and good electrical insulation. PC / ABS is an alloy material synthesized from polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS). It not only has the excellent impact resistance and weather resistance of PC, but also has the better performance of ABS. fluidity. However, the fluidity of existing PC / ABS materials is difficult to meet the molding requirements of large thin-walled electronic and electrical product components such as TV casings and printer casings. In addition, the impact toughness of thin-walled products produced by existing PC / ABS materials Physical p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L55/02C08L27/18C08L47/00C08L33/12C08L51/04C08L23/08C08L51/06C08K5/523C08K5/20C08K5/134C08K5/526C08K5/103B29B9/06B29C47/92B29C48/92
Inventor 麻一明张宇炯陶征红陈云峰吕卡利徐君华张雷
Owner FENGHUA XURI HONGYU
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