There are two kinds of raw materials for plastic turnover boxes: one is polypropylene (PP) and the other is polyethylene (HDPE). The material of plastic turnover box: Polyethylene (HDPE) Advantages: Large shrinkage, thick-walled products are easy to dent. The water absorption is very small, the water permeability is low, and the organic vapor transmission rate is relatively high. Good impact resistance and cold resistance, resistance to environmental stress cracking. Excellent chemical stability and good oil resistance. At low temperatures, the impact strength is poor. High static electricity, easy to aging in contact with copper. The electrical insulation is good, and the dielectric properties are extremely excellent in all frequency ranges.
