PPScharacteristics: the maximum allowable working temperature in the air is very high, it can work continuously at 220°C, and it can reach 260°C for a short time. It maintains high mechanical strength, stiffness and hardness in high temperature environments, and has excellent chemical corrosion resistance and hydrolysis resistance (not found yet. Solvent that candissolvepolyphenylene sulfide below 200℃, strong resistance to inorganic acids, alkalis and salts), excellent wear resistance and friction, very good dimensional stability, excellent resistance to high-energy radiation , Good UV resistance, flame retardant itself, excellent electrical insulation.