Plastic is an important raw material for human development, but it can pollute the environment if not handled properly. Here are a few ways to properly dispose of plastic.
2. As for plastic recycling, the most important thing is sorting.
3 common plastics are polystyrene, polypropylene, low density polyethylene, high density polyethylene, polycarbonate, polyvinyl chloride, polyamide, polyurethane and so on. By cracking and recycling, researchers are trying to tease out the chemicals inside plastic that can be reused.