The invention discloses
polypropylene composition which comprises the following compositions by weight percent: 52-92 wt% of
polypropylene, 5-15 wt% of elastomers, 0.5-2 wt% of oxethyl compounds, 0-30 wt% of talcum
powder, and 0.5-1 wt% of a
processing agent. The preparation method of the
polypropylene composition comprises the following steps: (a), weighing the compositions as per the weight matching ratio, and adding the compositions into a highly mixing
machine to mix for 1-3 minutes, so as to obtain pre-mixing materials, wherein the rotating speed is 1000-2000 rpm; (b),
smelting and extruding the pre-mixing materials by a double-screw extruder, and carrying out vacuum
granulation, so as to obtain the pastiness resistant polypropylene composition, wherein the temperature of various areas of screw rods is 190-230 DEG C. According to the invention, the oxethyl compounds have the conventional
powder dispersing function, and have the pastiness resistant effect on the surface of a polypropylene material, so that the types of pastiness resistant agents used in the polypropylene composition are increased; the preparation method is simple and feasible, the
equipment requirement is low, the product yield is high, and the polypropylene composition can be widely applied to the production of automobile used interior trimming parts such as
fascia boards, auxiliary
fascia boards, uprights, glove boxes, door panels and thresholds.