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Compounding flame retardation polystyrene composition and preparation method thereof

A technology of polystyrene and compound flame retardant, which is applied in the field of polystyrene composition modified by compound flame retardant and its preparation, can solve the problems of fire spread, melting drop, etc. Small addition amount and remarkable flame retardant effect

Active Publication Date: 2012-10-17
TAIYUAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, adding such flame retardants to polystyrene is prone to melt dripping when burning, causing the fire to spread.

Method used

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  • Compounding flame retardation polystyrene composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]The composite flame retardant polystyrene composition, the raw material formula is: 100g polystyrene resin; 60g composite flame retardant; 2g polyethylene wax 420P; 7g toughening agent SBS; 3g antioxidant 1010.

[0038] Among them, the compound flame retardant is 36g of decabromodiphenylethane, 6g of antimony trioxide, 12g of zinc borate, and 6g of linear thermoplastic phenolic resin powder. Use 0.6g of silane coupling agent KH-570.

[0039] The obtained pellets of the flame retardant polystyrene composition, the sample strips obtained by injection molding have passed the UL-94 standard test, and the flame retardant effect can reach V-0 level.

Embodiment 2

[0041] The difference between this embodiment and embodiment 1 is:

[0042] The ratio of the flame retardant is: 39g of decabromodiphenylethane, 4.8g of antimony trioxide, 12g of zinc borate, and 4.2g of linear thermoplastic phenolic resin powder. Use 0.9g of silane coupling agent KH-570.

[0043] The obtained pellets of the flame retardant polystyrene composition, the sample strips obtained by injection molding have passed the UL-94 standard test, and the flame retardant effect can reach V-0 level.

Embodiment 3

[0045] The preparation method of this embodiment is the same as that of Example 1, except that:

[0046] Compound flame retardant polystyrene composition, raw material formula is: 100g polystyrene resin; 70g compound flame retardant; 2g liquid paraffin; 7g ethylene-butyl acrylate binary copolymer; 3g antioxidant 168.

[0047] Among them, the proportion of the compound flame retardant is 45.5g of decabromodiphenylethane, 7g of antimony trioxide, 12.5g of zinc borate, and 5g of linear thermoplastic phenolic resin powder. Use 1.0 g of silane coupling agent KH-570.

[0048] The obtained pellets of the flame retardant polystyrene composition, the sample strips obtained by injection molding have passed the UL-94 standard test, and the flame retardant effect can reach V-0 level.

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Abstract

The invention relates to a compounding flame retardation polystyrene composition and a preparation method thereof. The composition comprises polystyrene resin, complex flame retardant, lubrication dispersant, flexibilizer and anti-oxidant. The method comprises the steps of: adding all the components into a high speed mixer, mixing the components uniformly, extruding the mixed components by using a double-screw extruder, and granulating the mixed components by using a pelleter to obtain polystyrene composition pellets. According to the invention, compounding is carried out by using environment-friendly decabromodiphenylethane, antimony trioxide, zinc borate and thermoplastic phenol resins; toxic polybrominated dibenzdioxan and toxic polybrominated dibenzofurans are not generated when combustion of the composition is carried out; relatively expensive antimony trioxide is partially replaced by cheap zinc borate; not only price is low, but also smoke concentration in combustion process can be effectively reduced, and combustion molten drops are inhibited, thereby synergistic flame retardation effect of the compounding flame retardant is obvious, and flame retardation effect is good.

Description

technical field [0001] The invention relates to a flame-retardant polystyrene composition and a preparation method thereof, in particular to a polystyrene composition modified by a compound flame retardant and a preparation method thereof. Background technique [0002] Polystyrene (PS) has excellent performance and is widely used in many fields such as electronics / electric appliances, automobiles, construction, toys, and packaging. However, the flame retardant requirements for materials at home and abroad are becoming more and more stringent. However, the disadvantages of polystyrene, such as easy burning and severe melting drop phenomenon during burning, seriously restrict its popularization and use in fields with fire protection requirements. [0003] Obtain existing documents, the publication number is CN 1966567A discloses "a polystyrene composition", blending 100 parts of polystyrene, 8-25 parts of bromine-containing compounds and 2-6 parts of antimony trioxide by weig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L25/06C08L51/00C08L61/06C08L53/02C08L51/06C08L23/08C08K13/06C08K9/06C08K5/03C08K3/22C08K3/38
Inventor 魏丽乔刘卫东赵恢李全红苏超许并社
Owner TAIYUAN UNIV OF TECH
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