Modified, weather resisting polypropylene material

Abstract

This invention discloses a modified polypropylene material used as elements of home appliances, such as outdoor hulls of air-conditioners and panels of automobiles. The modified polypropylene material comprises: polypropylene resin 65-85 wt.%, toughening modifier 1-18 wt.%, mineral reinforcer 0-25 wt.%, coupler 0.1-0.8 wt.%, processing auxiliary 0.2-2 wt.%, photostabilizer 0.2-2 wt.% and colorant 0.1-1.5 wt.%. Compared with present polypropylene material, the modified polypropylene material has improved weathering resistance and anti-aging property.

Description

technical field [0001] The invention relates to a modified polypropylene material in the field of macromolecular materials, which is mainly used in the manufacture of household appliance parts, such as the casing of an outdoor unit of an air conditioner, and auto parts such as instrument panels and bumpers. Background technique [0002] Polypropylene is a general-purpose thermoplastic with excellent comprehensive properties. It has low density, excellent mechanical properties such as yield strength, tensile strength, compressive strength, surface hardness and elastic modulus; it also has outstanding stress crack resistance and wear resistance; it has good heat resistance and continuous The use temperature can reach up to 120°C. Polypropylene hardly absorbs water, has excellent chemical stability, excellent high-frequency electrical properties, and is not affected by humidity. It is easy to form and process, and various products can be formed efficiently by various methods s...

AI Technical Summary

Problems solved by technology

[0006] However, if the amount of polyethylene wax is too much, it is easy to precipitate, which is not conducive to the maintenance and improvement of aging resistance. The amount of anti-ultraviolet agent is too small, so it is difficult to ensure the long-term anti-ultraviolet performance requirements, and the weather resistance effect is not good.