Plastic generally refers to a solid material that is based on natural or synthetic polymer compounds and can be plasticized under certain conditions, and the final shape of the product can remain unchanged. Due to the excellent properties of light weight, low price, high strength and easy processing, plastics have been widely used in production and life. At the same time, waste plastics have also become one of the fastest growing components of MSW.

 

 

 

Plastic waste is light and bulky. After being landfilled, it is not easy to rot, causing soil compaction, preventing crops from breathing and absorbing nutrients, reducing production; toxic additives and polyvinyl chloride in the residual film will be enriched in vegetables, grains and animals. When exposed to ultraviolet light or burned, they emit CO, vinyl chloride monomer, HCL, methane, NOx, SO2, alkaline and oily sludge, dust, etc. to pollute water and air, and chlorine-containing plastics are burned to release dioxins, etc. harmful materials.