Lightweight odorless polypropylene composite material and preparation method thereof

The invention provides a light odorless polypropylene composite material and a preparation method thereof. The preparation method comprises the following steps: firstly, pretreating a toughening agent to remove small-molecule odor residues and reduce the odor of the material; then the hollow glass microspheres are modified, so that the compatibility between the hollow glass microspheres and the resin is enhanced, the hollow glass microspheres can be better fused into a polypropylene matrix and form a composite master batch with a toughening agent and a deodorant, and the original mechanical properties of the polypropylene resin are not influenced; the requirement of automobile main engine plants on light weight of materials can be met, and relatively high shore density and excellent wear resistance can be reserved. The light odorless polypropylene composite material provided by the invention has a good application prospect. 本发明提供了一种轻质无气味聚丙烯复合材料及其制备方法。首先对增韧剂进行预处理，除去小分子气味残留，减少材料的气味；再对中空玻璃微球进行改性，增强中空玻璃微球与树脂之间相容性