Hongwo Sealing Sheet
PTFE sheet is very wear-resistant. It ranks as one of the best plastics for wear resistance. PTFE sheet is much more wear-resistant than nylon, polypropylene, and polytetrafluoroethylene. It is also four times more wear-resistant than carbon steel and stainless steel. The friction coefficient of PTFE sheet is very low. The static friction coefficient ranges from about 0.04 to 0.1. Meanwhile, the dynamic friction coefficient is roughly between 0.01 and 0.04. When PTFE touches other materials, it has very little friction. In various scenarios where we need to reduce friction, we find that PTFE sheet is an ideal material. PTFE has the best wear resistance of any plastic. Its wear resistance is much higher than nylon, polypropylene, and even polytetrafluoroethylene. In fact, it is four times better than carbon steel and stainless steel. The abrasion index of mortar is much lower than that of plastics, cast iron pipes, and carbon steel pipes.
Factors Affecting the Wear Resistance of PTFE Sheets
Load: When the load goes up, the friction coefficient of the PTFE sheet goes down. This happens when the material surfaces touch more closely. This contact makes it harder for them to move against each other.
Sliding speed: At low speeds, the friction coefficient stays steady. As speed goes up, the friction coefficient might drop at first. But if the speed gets too high, the friction coefficient can rise due to heat from friction.
Surface roughness: The roughness of the material in contact with the PTFE sheet affects its friction coefficient. A rough surface boosts mechanical interlocking, which raises the friction coefficient. In contrast, a smooth surface lowers the friction coefficient.
Temperature: Normal range is -190°C to 260°C. Higher temperatures lower the friction coefficient. High temperatures can change the material in both physical and chemical ways. This change can affect the friction coefficient.
PTFE sheets have a broad application prospect in various industrial fields. Their strong performance gives them special functions. This brings great convenience to industrial production. As technology keeps advancing, we expect the use of PTFE sheets to grow.
