Plastic Modifier can improve PP melting index, improve the flow of recycled PP injection molding raw materials, by attacking the PP molecular chain, change the PP molecular weight, improve the flow of PP injection to reduce the injection pressure and processing temperature. Reduce PE melting index, improve the flow of recycled HDPE extrusion processing, reduce the molten finger of recycled HDPE used to meet the requirements of pipeline extrusion on the original flow. Through the waste Plastic recycling, crushing, cleaning, processing and other steps to obtain recycled plastic, then use Plastic Modifier for recycled plastic modification, resulting in the production of special particles with excellent room temperature and low temperature toughness of the sanitation bucket, can be directly injected into the production of the sanitation bucket.