Ultra-high molecular weight polyethylene sheet and polytetrafluoroethylene sheet look similar in appearance. These two materials are the two most widely used non-metallic materials on the market. The two characteristics are corrosion resistance, self-lubrication and low friction. Coefficient of engineering plastic sheet. Different characteristics show that the ultra-high molecular weight polyethylene sheet is more wear-resistant than the polytetrafluoroethylene sheet, and the high temperature resistance is not as good as the polytetrafluoroethylene sheet.
Ultra-high molecular weight polyethylene sheets are chemically stable and resistant to acid, alkali, salt, seawater, sewage, corrosive soils, groundwater and many chemical fluids. The PTFE sheet is resistant to almost all chemical media and has good corrosion resistance to halogens, halogenated hydrocarbons, strong oxidants, boiling acids, alkalis, and various organic solvents. The ultrahigh molecular weight polyethylene sheet has an elongation at break of up to 350%, which can absorb the impact load to the utmost extent. On the contrary, the impact resistance of the PTFE sheet is poor.
In summary, it is not difficult to see that the ultra-high molecular weight polyethylene board is the king of plastics in the field of wear resistance; and the PTFE sheet is the leader in the field of high temperature resistance and corrosion resistance. More importantly, the ultra-high molecular weight polyethylene sheet is much lower than the market price of the polytetrafluoroethylene sheet, and the unit square meter weight is much smaller, so the application range is relatively wide.