Plastic granulation should say that theoretically one ton of "plastic" can produce one ton of granules, because we have said that granulation is to transform a certain form of plastic by thermoplastic melt extrusion and dicing, thus becoming another form. The embodiment is simply a physical conversion process. However, what you mentioned is how much the waste plastics can be produced. It is necessary to objectively analyze how much impurities are contained in one ton of waste plastics, because waste plastic granulation has the following purposes:
First, the bulky volume of waste plastics is reduced to a granular shape, that is, the volume is reduced to facilitate storage; transportation, or processing of a molding machine.
Second, because waste plastics contain a lot of impurities, they need to be removed by sorting, cleaning and filtration. In order to facilitate the production of qualified plastic products.
Third, the used waste plastic formula is introduced into different auxiliaries such as plasticizers, melting agents, toughening agents, fillers, brighteners, flow agents, etc., to improve or improve certain physical and chemical properties. index.
In summary, it can be seen from the first point that only the raw material is thermoplastically reduced in volume, and its chemical composition is not changed, and the law of conservation of mass does not theoretically increase or decrease. The second article has an unknown factor, which is how much impurities are contained. The ratio of output depends on the amount of impurities. The third reason is to increase the weight of the raw materials, depending on how much other substances you have added! Of course, what we say is theoretical. In fact, waste plastics will have more or less impurities. In actual production, there are also very few losses such as crushing, cleaning, filtering and adhering to the filter net, etc. , but this is less.