Process and material classification of plastic bags
Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (minimum use temperature can reach -70 ～ -100 ℃), good chemical stability, can withstand most acid and alkali erosion (not resistant to oxidizing properties) Acid), insoluble in ordinary solvents at room temperature, low water absorption, and excellent electrical insulation properties; but polyethylene is…