Rubber PTFE composite membrane
Rubber PTFE composite membrane is a high-performance sealing material that combines the elasticity of rubber with the corrosion resistance of polytetrafluoroethylene (PTFE). It is widely used in chemical engineering, fluid control, and special working condition equipment. The following is its key information:
1、 Core Features
Corrosion resistance: The PTFE layer can withstand strong acids, strong alkalis, and organic solvents, while the rubber matrix provides a cushioning seal.
Temperature resistance range: -40 ℃ to+180 ℃, with some modified products reaching up to 250 ℃.
Mechanical strength: The sandwich process enhances tear resistance and is suitable for high-pressure valves (such as pneumatic diaphragm pumps).
2、 Typical application scenarios
Chemical equipment: sealed corrosive medium pipelines, reaction vessels.
Fluid control: Pneumatic diaphragm pump diaphragm (common specification 15-125mm), solenoid valve seal.
Special working condition: Gas regulator diaphragm (requiring high temperature resistance and anti backflow).
3、 Selection and Market
Material selection:
Normal working condition: Nitrile rubber+PTFE composite (excellent oil resistance).
High temperature/strong corrosion: Fluororubber+PTFE composite (resistant to 250 ℃).
選型建議
