| abstract |
The invention discloses a kind of polypropene composition, by weight, including following component：100 parts of polypropylene, 30 parts of alkali magnesium sulfate crystal whisker 10 part, 1.0 parts of foaming agent 0.1 part, 1.5 parts of odor adsorption agent 0.5 part, 30 parts of toughener 10 part.Alkali magnesium sulfate crystal whisker and foaming agent of the invention by adding certain content simultaneously, only add alkali magnesium sulfate crystal whisker and compare, while comprehensive mechanical property is not reduced, the weight of product can be mitigated significantly, so as to meet the lightweight requirements of automobile.The present invention is by adding the odor adsorption agent of certain content and double screw extruder being designed as into single vacuum design, and ensure its vacuum level requirements≤0.08bar, small molecule volatile matter can be detached totally, significantly improve its devolatilization effect, the polypropene composition being prepared has low smell, low emission characteristics, not only the lightweight requirements of automobile can have been met but also the low distribution performance of the low smell of material for car interior trim parts can be met, had a extensive future. |