Reinforced polypropylene material and preparation method thereof

Abstract

The invention discloses a reinforced polypropylene material which comprises the following components in parts by weight: a, 10-90 parts of polypropylene resin, b, 0.5 to 25 parts of a compatilizer, c,5 to 60 parts of reinforced fibers, and d, 0.1 to 20 parts of low-hardness toner, wherein the reinforced fibers comprise a component I, a component II and a component III, the component I is composedof reinforced fibers with the length of 0.1-0.6 mm and accounts for 35-50% of the number of the reinforced fibers, the component II is composed of reinforced fibers with the length of 0.7-1.3 mm andaccounts for 35-45% of the number of the reinforced fibers, and the component III is composed of reinforced fibers with the length of 1.4-2.0 mm and accounts for 5-20% of the number of the reinforcedfibers. According to the invention, the length and content distribution of the reinforced fibers are adjusted in the formula of the reinforced polypropylene material, according to the reinforced polypropylene material, the retention length of reinforced fibers is greatly maintained in the reinforced polypropylene material, and the low-temperature toughness and the long weather resistance of the obtained reinforced polypropylene material are obviously improved by combining the low-hardness toner with a specific content and supplementing the compatilizer with a specific content.

Description

technical field [0001] The invention relates to the technical field of engineering plastics, in particular to a reinforced polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene material is currently the most used polymer material. It has excellent processing properties and mechanical properties. It is widely used in daily life and industrial production fields, such as: agricultural film, wire and cable, communication, housing construction and aviation manufacturing. Wait. [0003] Conventional reinforced polypropylene materials usually use glass fiber as a reinforcing medium, and use the high strength and high rigidity of glass fiber to improve product strength and heat resistance. However, conventional glass fiber reinforced polypropylene materials have defects such as poor light aging resistance and heat aging performance, poor low temperature toughness, etc., and cannot be used for a long time in harsh environments. [0004...

AI Technical Summary

Problems solved by technology

However, conventional glass fiber reinforced polypropylene materials have defects such as poor light aging resistance and heat aging performance, poor low temperature toughness, etc., and cannot be used for a long time in harsh environments.

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