Inflaming-retarding and sound-absorbing polycarbonate vehicle material and preparation method thereof

Abstract

The invention belongs to the technical field of automotive trim and discloses an inflaming-retarding and sound-absorbing polycarbonate vehicle material and a preparation method thereof, the inflaming-retarding and sound-absorbing polycarbonate vehicle material is prepared from the compositions of, by weight, 100-120 parts of polycarbonate, 15-25 parts of glass fiber cloth, 1-2 parts of maleic anhydride, 3-6 parts of foam magnesium powder, 8-12 parts of attapulgite, 6-10 parts of hydroxyapatite, 8-14 parts of aluminium hydroxide, 6-10 parts of mulberry bark fiber, 4-6 parts of aramid fiber pulp, 3-5 parts of pentaerythritol, 16-20 parts of ammonium polyphosphate, 4-6 parts of dicyandiamide, 1-2 parts of calcium stearate, 6-10 parts of chitosan, 0.3-0.5 part of sodium lignin sulfonate and 10-20 parts of acrylic emulsion. The material has excellent flame retardant property and sound absorption property, is low in production cost and can be popularized widely.

Description

technical field [0001] The invention belongs to the technical field of automobile interior decoration, and relates to a flame-retardant and sound-absorbing polycarbonate vehicle material, and also relates to a preparation method of the flame-retardant and sound-absorbing polycarbonate vehicle material. Background technique [0002] Polycarbonate is an amorphous, odorless, tasteless and non-toxic thermoplastic polymer. It is a thermoplastic engineering resin with special molecular structure and excellent comprehensive properties. At present, its application is developing rapidly, and it ranks second in the application of the five major engineering resins, second only to the application of nylon. The molecular chain of polycarbonate contains benzene ring and carbonate structure, so the rigidity of its molecular chain is very large. Due to the special molecular structure of polycarbonate, many unique mechanical, thermal, optical and other properties of polycarbonate are determ...

AI Technical Summary

Problems solved by technology

The main chain of polycarbonate contains benzene rings, which can be condensed into aromatic charcoal when it is burned. The charcoal formation rate is high. The flame retardant grade is UL94V-2. Melt, it is easy to cause fire of nearby materials, so it is difficult to meet the requirements of polycarbonate flame retardancy in some fields

The commonly used flame retardant additive method is to add halogen-containing halides and antimony trioxide. The disadvantage of these flame retardants is that they generate a large amount of smoke when burned, produce toxic, harmful, and strongly corrosive halides, and cause environmental pollution. Pollution

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