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Halogen-free inflaming-retarding high impact polystyrene resin

A flame-retardant high-impact polystyrene and polystyrene resin technology, applied in the field of halogen-free flame-retardant high-impact polystyrene resin, can solve problems such as loss of processing performance and increase in cost, avoiding migration and accelerating extinction High flame and flame retardant efficiency

Inactive Publication Date: 2012-04-11
SHANGHAI KUMHO SUNNY PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another commonly used solution to improve the heat resistance of halogen-free flame retardant HIPS is to add a small amount of polyphenylene ether that is completely compatible with HIPS, which can improve both heat resistance and flame retardancy, but will lose a certain amount. Processing performance, especially will have a certain impact on forming parts such as large-sized LCD back shells, and will also bring corresponding disadvantages of increasing costs

Method used

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  • Halogen-free inflaming-retarding high impact polystyrene resin
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  • Halogen-free inflaming-retarding high impact polystyrene resin

Examples

Experimental program
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Effect test

Embodiment 1～9

[0034] The components of the halogen-free flame-retardant high-impact polystyrene resin involved in Examples 1-9 and the weight content of each component are shown in Tables 1-5 below. The preparation method of the halogen-free flame-retardant high-impact polystyrene resin Proceed as follows:

[0035] (a) get each component by weight parts;

[0036] (b) After fully mixing high-impact polystyrene resin, polyphenylene ether, phosphate flame retardant, toughening agent, epoxy plasticizer, antioxidant, and lubricant in a high-speed mixer, The metering device is fed into the twin-screw extruder, and the temperature of the twin-screw extruder is controlled at 170-200°C. Under the conveying, shearing and mixing of the screw, the material is melted and compounded, and finally extruded, drawn, Cooling and pelletizing steps to obtain the halogen-free flame-retardant high-impact polystyrene resin.

[0037] Table 1

[0038]

[0039] Table 2

[0040]

[0041] table 3

[0042] ...

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Abstract

The invention discloses a halogen-free inflaming-retarding high impact polystyrene resin, comprising the following components based on parts by weight: 70-90 parts of high impact polystyrene resin, 10-30 parts of polyphenyl ether, 3.0-20 parts of phosphate ester fire retardant, 1.0-5.0 parts of flexibilizer, 0.1-5.0 parts of epoxy plasticizer, 0.2-1.0 parts of anti-oxidant and 0.2-2.0 parts of lubricating agent. The invention uses PPO, phosphate ester fire retardant and epoxy plasticizer to form synergistic inflaming retarding system which has high inflaming retarding efficiency and excellentmechanical performance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a halogen-free flame-retardant high-impact polystyrene resin. Background technique [0002] Due to its excellent processing properties, impact toughness, electrical insulation properties, etc., high impact polystyrene resin (HIPS) is widely used in household appliances, office equipment such as printers and copiers, and electronic appliances. HIPS applications put forward higher requirements for its flame retardancy, and usually need to reach UL94 V0 level. [0003] Styrene-based resins such as HIPS and ABS have an oxygen index of only 18.0, which are flammable materials. Halogenated flame retardant HIPS resins prepared from brominated flame retardants, antimony flame retardant additives and HIPS have been widely accepted and used. The brominated flame retardants involved mainly include tetrabromobisphenol A, decabromodiphenylethane, 2,4,6-tribromotriphenoxy-1,3,5-tri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/00C08L71/12C08L53/00C08L53/02C08K5/00C08K5/523C08K5/1515
Inventor 周霆宋治乾魏绪英罗明华辛敏琦
Owner SHANGHAI KUMHO SUNNY PLASTICS
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