How to use the temperature difference separation method to smash waste plastics

Different kinds of plastics have different embrittlement temperatures, and the mixture is selectively embrittled and pulverized to achieve plastic separation. The most suitable method for separating this is the separation of polyvinyl chloride and polyethylene. The embrittlement temperature of polyvinyl chloride is -41 degrees Celsius, while the embrittlement temperature of polyethylene is below -100 degrees Celsius. In addition, it can also be used for the separation of polyvinyl chloride and PET bottles.

The process of separating the mixture of polyvinyl chloride and polyethylene is as follows: the mixed material is first put into a cooler, cooled to -50 degrees Celsius, then sent to a pulverizer for pulverization, crushed by the embrittlement of the polyvinyl chloride, and then sieved. Separating from unpulverized polyethylene.

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