Polypropylene material for automobile interior trimming parts and preparation method thereof

Abstract

The invention discloses a polypropylene material for automobile interior trimming parts and a preparation method of the polypropylene material. The polypropylene material for automobile interior trimming parts comprises the following components in part by weight: 30-80 parts of polypropylene, 5-10 parts of ethylene propylene terpolymer and 10-25 parts of talcum powder. The polypropylene material can be prepared just through weighting each raw material in certain proportion; after the raw materials are uniformly mixed, carrying out fusing and mixing on the obtained mixture; and carrying out extruding and granulation to obtain the polypropylene material. Through mixing the polypropylene with the ethylene propylene terpolymer, the toughness and cold resistance of the polypropylene material can be improved, and the polypropylene material is good in ozone resistance, oxidation resistance and erosion resistance; meanwhile, the polypropylene material has a shockproof effect; and after the talcum powder is added, the friction coefficient of the polypropylene material can be reduced, and the self lubricity of the polypropylene material can be improved. The polypropylene material for automobile interior trimming parts disclosed by the invention has the appearance and performance of a rubber body; and the polypropylene material can be prepared into automobile interior trimming parts suchas outer side plates for driver seats, small cover lids, inner plates of side plates, plastic parts for inner side plates, outer side plates for passenger seats, door-sheet armrest frames and door trimming plates and the like through an injection molding process.

Description

technical field [0001] The invention relates to a plastic material and a preparation method thereof, in particular to a polypropylene material for automotive interior parts and a preparation method thereof. Background technique [0002] Polypropylene, abbreviated as PP, was first put into industrial production in Italy in 1957 and is another important plastic species after polyethylene (PE). It has good heat resistance, and it will not be destroyed when it is cooked at 135°C for 1000 hours. The specific heat capacity and thermal conductivity of PP are smaller than that of PE, but its thermal insulation is better than that of PE. PP is a non-polar polymer with excellent dielectric and electrical insulation properties. The electrical properties are basically not affected by ambient humidity and electric field frequency. Within the allowable operating range, the increase in temperature will reduce the electrical properties. Its High arc resistance. PP has good chemical resist...

AI Technical Summary

Problems solved by technology

But its cold resistance is poor, weather resistance is not good, high temperature is rigid enough

[0003] In the current technology, because some properties of PP are not ideal, it needs to be modified to improve toughness, cold resistance, weather resistance, dyeability, and further improve mechanical properties and heat resistance, etc.

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