1. It is a kind of plastic particles that have been used or discarded and cut into granules by a granulator. The convenience bags made of recycled particles can not be used for food packaging, and may contain toxins, so its application scope will be limited. Generally speaking, the primary and secondary materials can be used for film blowing, wire drawing, etc. Polypropylene PP can be used for woven bags, ropes, benches and basins. Barrels and other commonly used plastic products. PE PE general blow molding, make convenient bag, agricultural film.
2. Plastic particle manufacturers introduced, for example, the convenience bags made of recycled particles can not be used for food packaging, and some particles processed with PVC may contain toxins, so their application scope will be limited. Generally speaking, the primary and secondary materials can be used for film blowing and wire drawing, while the third grade materials can only be used for injection molding. Soft plastic is close to rubber, and hard plastic is close to fiber. Plastic is a synthetic polymer compound, which can change its shape freely.
The narrow definition of plastic refers to the material that can flow and form in the process of processing, with resin or monomer directly polymerized as the main component, plasticizer, filler, lubricant, colorant and other additives as auxiliary components. Plastics are materials that are synthesized or polymerized by condensation reaction using monomer raw materials. In addition, in order to improve the properties of plastics, it is necessary to add various auxiliary materials, such as fillers, plasticizers, lubricants, stabilizers, colorants and so on, in order to become good plastics.
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