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How to define and explain the eight categories of plastic industry: raw materials, modification, recycling, machinery, products, molds and additives?
Raw materials refer to synthetic resins, such as PP, PE, PS, PVC, PC, PET, PA, etc. , are all produced by petrochemical companies (domestic).

Modification refers to changing the properties of synthetic resin to meet different product requirements, such as flame retardant of TV shell plastic, antistatic of electrical packaging film, high temperature resistance of microwave oven plastic tray, etc.

Recycling refers to different plastic products produced by various plastic processing equipment, which are recycled manually after use and then put into recycling equipment for granulation again or even many times. These plastic particles are recycled materials or recycled materials (such as plastic films for greenhouses and recycled plastic films for granulation).

Machinery is a variety of equipment used to process plastics, such as injection molding machine, extruder, film blowing machine, bottle blowing machine and so on.

Mold is a mold used to produce specific plastic products, such as bottle blowing machine needs bottle mold, disposable fast food box needs plastic suction mold,

The crisper needs an injection mold.

Additives are some special additives (such as toughening agent, nucleating agent, flame retardant, lubricant, etc.). ) added in the process of plastic production and processing can improve the physical and mechanical properties, heat resistance and flame retardant properties of products.

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