For example, PMMA means
Polymethyl methacrylate, a polymer obtained by polymerization of acrylic acid and its esters, is collectively referred to as acrylic resin, and the corresponding plastics are collectively referred to as polyacrylic plastics, among which polymethyl methacrylate is the most widely used. Polymethyl methacrylate is short for PMMA, commonly known as plexiglass.
PE
Polyethylene (PE) is a thermoplastic resin polymerized from ethylene. In industry, it also includes * * * polymers of ethylene and a small amount of α-olefins. Polyethylene is odorless and non-toxic, feels like wax, and has excellent low temperature resistance (the lowest service temperature can reach-100 ~-70℃), good chemical stability and resistance to most acids and bases (not oxidative acids). Insoluble in general solvents at room temperature, low water absorption and excellent electrical insulation.