Weather-resistant modified plastic particles for automobile lamps and production process thereof

Abstract

The invention discloses weather-resistant modified plastic particles for for automobile lamps, which are prepared from the following materials in parts by weight: 130-150 parts of polybutylene terephthalate, 25-30 parts of polystyrene, 12-16 parts of diatomite, 8-12 parts of nanometer aluminum oxide, 6-8 parts of silicon powder, 8-12 parts of microcrystalline cellulose, 8-12 parts of glycerol monostearate, 5-8 parts of calcium stearate, 2-5 parts of citrate and 25-30 parts of cyclohexanone. The invention relates to the technical field of plastics. Through hot melting and stirring of the materials, homogenization treatment is carried out on the internal materials, fusion and change of material phases are carried out through reactions among the materials, the weather resistance of the modified plastic is enhanced, and the situation that the modified plastic is automatically decomposed or discolored due to use of the modified plastic is avoided.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to a weather-resistant modified plastic particle for an automobile lamp and a production process thereof. Background technique [0002] The car light system consists of headlights, fog lights, width lights and tail lights, brake lights, turn signal lights, hazard warning lights, license plate lights, reversing lights, instrument lights and dome lights. The shell of the lamp system is made of plastic, which needs to have strong high temperature resistance, weather resistance, impact resistance and anti-fog performance. At present, the most commonly used modified plastics are general-purpose modified plastics, such as PP, PE, PVC, ABS and PA. Wait. [0003] Existing modified plastics have poor stability to light and heat. When they are exposed to sunlight for a long time or above 100°C, they will decompose and produce hydrogen chloride, which will further autocatalyze and decompose,...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a weather-resistant modified plastic granule for automobile headlights and a production process, which solves the problem that the existing modified plastic has poor stability to light and heat, and can be damaged at temperatures above 100°C or over a long period of time. When exposed to sunlight, it will decompose to produce hydrogen chloride, and further autocatalyze the decomposition, causing discoloration, rapid decline in physical and mechanical properties, greater brittleness, poor impact resistance, and poor weather resistance.

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