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Plastic screening solution

Plastic is a synthetic polymer compound, also commonly known as plastics or resin, which can freely change its shape and style. It is a material synthesized or condensed from monom

Plastic is a synthetic polymer compound, also commonly known as plastics or resin, which can freely change its shape and style. It is a material synthesized or condensed from monomer raw materials, composed of synthetic resins and additives such as fillers, plasticizers, stabilizers, lubricants, pigments, etc.


Classification of plastics

According to the different usage characteristics of various plastics, plastics are usually divided into three types: general plastics, engineering plastics and special plastics.


①General plastics

Generally refers to plastics with large output, wide application, good formability and low price. There are five major types of general plastics, namely polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) and acrylonitrile-butadiene-styrene copolymer (ABS). They are all thermoplastics.


②Engineering plastics

Generally refers to plastics that can withstand certain external forces, have good mechanical properties and high and low temperature resistance, good dimensional stability, and can be used as engineering structures, such as polyamide, polysulfone, etc.


③Special plastics

Generally refers to plastics with special functions that can be used in special application fields such as aviation and aerospace. For example, fluoroplastics and silicones have outstanding special functions such as high temperature resistance and self-lubrication, and reinforced plastics and foam plastics have special properties such as high strength and high cushioning. These plastics all belong to the category of special plastics.


Screening of plastics



① Screening of raw materials: for example, the screening of materials such as polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) and acrylonitrile-butadiene-styrene copolymer (ABS). Because their particles in production are qualitatively uniform, their screening purpose is to remove impurities and agglomerates.


② Recycling and screening of waste plastics: recycled plastic products, such as waste plastic pipes, waste plastic brackets, waste plastic bottles, etc., are screened after crushing.


③ Screening of plastic particles: the plastic particles after molding are graded, and the purpose of screening is fine grading;


④ Screening of resin slices: Screening is difficult because resin slices are easy to stick together, and there will be super-long single-body unqualified materials. The machine can be tested to clarify the screening requirements;


⑤ Screening of fillers: screening of wood powder, glass fiber, diatomaceous earth, natural mineral powder, carbon black, etc.;