PTFE Sheet

PTFE Sheet

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• PTFE Sheet
• PTFE Moulded Sheet
• PTFE Sheet Filled with Glass
• Etched PTFE Sheet

Performance characteristics

• Excellent chemical resistance
• Extremely low friction
• Soft and formable
• Good weather resistance
• Performs well at high temperatures

PTFE is widely used in follow fields

• Seals and gaskets
• Valves and accessories components
• Pump parts
• Manifold
• Semiconductor equipment
• Scientific equipment
• Chemical resistant tube
• Bearings and bushes (bearing grade)

Research application cases

• In the fields of microelectronics, adhesion and biomaterials, PTFE is often widely studied as a substrate. PTFE exhibits excellent dielectric properties. In a wide temperature range of -40 to 250 °C and a frequency range of 5 Hz to 10 GHz, the relative dielectric constant of PTFE is maintained at 2.1. However, due to its surface inertness, the original PTFE substrate cannot meet the adhesion strength to various metals and semiconductors required by many industries. Therefore, the pretreatment and functionalization of the PTFE surface has become the key to research. For example, the PTFE sheet is metalized with fascicle copper (Cu) through atmospheric pressure plasma liquid deposition technology and used for the interface of high-frequency electronic equipment.

Figure 1. Schematic diagram of the formation of copper nanoclusters on the surface of a PTFE plate induced by plasma physics [1]

• Plastic displays are superior to glass displays because they are more flexible, lighter, stronger, and less rigid. PTFE is a common polymer substrate used in the production of plastic displays. Due to the neat assembly of the oxide, the ZnO nanorod array has excellent conductivity and transparency, which can significantly reduce the scattering area. One-dimensional ZnO nanorod arrays are usually synthesized in the gas phase through a gas-liquid-solid process or a gas-solid process (such as chemical vapor deposition or pulsed laser deposition). Although these processes can be used for high-quality single-crystal nanorods, the strict requirements for substrates due to high-temperature processes may hinder the formation of ZnO nanorods on polymer substrates. Therefore, PTFE has high dielectric strength, low dissipation factor, high surface resistivity, chemical resistance and excellent flexibility, and is suitable as a polymer substrate for the growth of ZnO nanorod arrays.

Figure 2. Surface morphology of ZnO nanorods on PTFE sheet [2]

• PTFE is an excellent non-stick material, but when you need to stick it to the surface of another material, in order to bond standard PTFE to another surface (such as stainless steel), you need a method called "etching" the process of. Typical applications for etching PTFE include the lining of chemical processing tanks or other equipment used in corrosive environments.

References

1. Nobuyuki Zettsu, Hiroto Itoh, Kazuya Yamamura, Surface & Coatings Technology 202 (2008) 5284–5288.
2. W.K. Tan, Khairunisak Abdul Razak, K. Ibrahim, Zainovia Lockman, Journal of Alloys and Compounds 509 (2011) 820–826.

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