Glass-fiber-reinforced flame-retardant polycarbonate composite material, and preparation method and applications thereof

Abstract

The invention relates to a glass-fiber-reinforced flame-retardant polycarbonate composite material, and a preparation method and applications thereof. The glass-fiber-reinforced flame-retardant polycarbonate composite material comprises, by mass, polycarbonate resin of 10 to 80%, silicone chemically modified polycarbonate of 5 to 80%, silicone toughening agent of 1 to 8%, glass fiber of 5 to 30%,silicone flame retardant of 0.2 to 2%, sulfonate flame retardant of 0.1 to 1%, and an auxiliary agent of 0.4 to 3%. The glass-fiber-reinforced flame-retardant polycarbonate composite material possesses excellent low temperature impact resistance, flame resistance, rigidity, heat resistance, and hydrolysis resistance, contains no halogen, and is friendly to the environment.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a glass fiber-reinforced flame-retardant polycarbonate composite material and a preparation method and application thereof. Background technique [0002] Polycarbonate (English name Polycarbonate, referred to as PC), is a colorless and transparent amorphous thermoplastic polymer material. It has high strength, high toughness, high heat resistance, excellent electrical insulation, elongation, dimensional stability and chemical corrosion resistance, high heat resistance and cold resistance; it is also self-extinguishing, easy to strengthen, flame retardant , Non-toxic, hygienic, easy to color, anti-shock and other excellent properties, so the amount of PC in engineering plastics is second only to polyamide (PA) and ranks second. [0003] With the integration and development of new-generation information technologies such as mobile technology and innovative cloud compu...

AI Technical Summary

Problems solved by technology

Among them, the flame retardant is phosphorus selenium flame retardant, by adding a certain proportion of glass fiber chopped strands, glass flakes, flame retardants and synergistic flame retardants to the polycarbonate resin, the composite material is formed The finished product not only has good flame retardancy, but also has good mechanical properties. However, the amount of phosphorus flame retardant added in this invention is too small, and the bridging effect of glass fibers will make the toughening agent easy to burn, which is not conducive to Improvement of flame retardant properties of materials

At the same time, the addition of a large amount of glass flakes seriously affects the impact toughness and low temperature impact resistance

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