Technology of obtaining regrind in the recycling process from heterogeneous waste plastics materials

摘要

the technology is the selection of input parameters and processing of waste plastics. included in the input materials contain from 20 to 50% polyethylene pe, from 5 to 30% of polyethylene terephthalate pet and from 20 to 50% polypropylene pp.the material is chopped at the mill in different time intervals, namely, pe and pet during 8 to 11 minutes to size from 0.1 to 30 mm and pp from 5 to 8 minutes to size from 0.5 mm to 40 mm, after which the ingredients mixed with the appropriate fraction available for injection to wytu0142aczark and.in processing for an extruder in the alloying process is input at 165 - 195u00b0c with such speed that the input was in cylinder extruders from 40 seconds to 1 minute, and the degassing process is carried out at a temperature of 220 - 280u00b0c with such speed that stopio new york input was in cylinder extruders during 1 to 2 minutes.