Glass fiber reinforced fire retardation styrene-acrylonitrile material and preparation method thereof

Abstract

The present invention discloses a glass fiber reinforced fire retardation styrene-acrylonitrile material, which comprises, by weight, 23-75 parts of a styrene-acrylonitrile copolymer, 10-40 parts of glass fibers, 2-15 parts of an interface compatibilizing agent, 10-20 parts of a fire retardation agent, 3-6 parts of a synergistic fire retardation agent, and 0.1-1.5 parts of an auxiliary agent. According to the present invention, the alkali-free glass fiber reinforced SAN material being subjected to a surface treatment with an epoxy coupling agent is adopted, the one of the styrene-maleic anhydride copolymer and the ABS-g-MAH is selected as the interface compatibilizing agent to enhance the interface adhesion between the SAN substrate and the glass fibers, and the environment-friendly fire retardation agent and the synergistic fire retardation agent are adopted to prepare the glass fiber reinforced fire retardation SAN material meeting the UL-94 V-0-level and / or the 5V level, wherein the material has characteristics of environmental protection, high fire retardation, excellent strength, excellent rigidity and the like, and has good application prospects in the application field (such as air conditioning fan blades) requiring materials with high strength , high rigidity , good dimensional stability, excellent environmental protection, excellent fire retardation and other excellent characteristics.

Description

technical field [0001] The invention relates to a glass fiber reinforced flame retardant material, in particular to a glass fiber reinforced flame retardant styrene-acrylonitrile material and a preparation method thereof, belonging to the modification of high molecular weight polymer materials. Background technique [0002] Styrene-acrylonitrile copolymer (hereinafter referred to as SAN) has good transparency, chemical resistance, rigidity, strength, dimensional stability and other characteristics, and is widely used in household appliances, cosmetic packaging, food contact materials, medical equipment and other industries. Some specific applications (such as air-conditioning fan blades) require materials with high rigidity, high strength and good dimensional stability, and pure SAN copolymers cannot meet the above requirements. In order to improve the rigidity, strength and dimensional stability of SAN, fibrous inorganic fillers such as glass fiber and wollastonite with a c...

AI Technical Summary

Problems solved by technology

However, the effect of only relying on the coupling agent to enhance the interfacial bonding force between the SAN copolymer and the reinforcing material is not obvious

[0003] At the same time, SAN copolymer is a flammable material, and its flame retardant level can only reach UL94 HB level; but in some specific fields such as home appliances, electronics, etc., its combustion performance must reach V-0 level or 5V level.

At present, decabromodiphenyl ether is used as a flame retardant to prepare flame-retardant reinforced SAN materials, but its flammability cannot reach V-0 or 5V level, and decabromodiphenyl ether is a substance prohibited by the environmental protection regulations RoHS

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