The technique is simple and most commonly used today. By collecting the plastic through the use of already separated by type. Color and cleaned before being crushed into small pieces. And forging a second grade plastic or recycled plastic to be recycled to be used as raw material in the manufacture of a new product or mixed with new tablets to achieve desired properties prior to the forming process. The quality of recycled plastic, this will determine the implementation and the amount of mixing required. The problem is in the process of recycling plastic recycling process after each time to lower quality plastic reaction to the lack of chain molecules. Can not be used to maximum benefit. And cheaper, and more. And sometimes not worth the investment. The main reason is due to the contamination of dirt or small pieces of adhesive labels made of recycled plastic, darken or clear plastic moisture also decreased. And the heat is used to melt the plastic is a major factor that causes decay. Or lack of chain molecules of the polymer used to make plastics. Make recycled plastic yellow. And mechanical properties decrease.
การแปล กรุณารอสักครู่..
