• Celida brand PTFE sheet
• Celida brand PTFE pipe
• Celida brand PTFE rods
• Celida brand PTFE film
• Polytetrafluoroethylene processed products
• Fully transparent PFA tube
• Transparent FEP tube
• Insulating material sleeve
• Production Equipment

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The mechanical properties of polytetrafluoroethylene are relatively soft. It has very low surface energy.

Polytetrafluoroethylene (F4, PTFE) has a series of excellent performance: high temperature resistance - long-term use temperature 200~260 degrees, low temperature resistance - still soft at -100 degrees; corrosion resistance - resistant to aqua regia and all organic solvents; weather resistance - the best aging life in plastics; high lubricity - has the smallest friction coefficient in plastics (0.04); non-stickiness - has the smallest surface tension in solid materials and does not adhere to any substance; non-toxic - has physiological inertness; excellent electrical properties, is an ideal C-class insulation material, a layer as thick as a newspaper can block a high voltage of 1500V; smoother than ice. Polytetrafluoroethylene materials are widely used in important departments such as national defense, military industry, atomic energy, petroleum, radio, electric machinery, and chemical industry. Products: polytetrafluoroethylene rods, pipes, plates, and turning plates. Polytetrafluoroethylene is a polymer of tetrafluoroethylene. The English abbreviation is PTFE. The structural formula is: CF3(CF2CF2)nCF3. It was discovered in the late 1930s and put into industrial production in the 1940s. Properties The relative molecular mass of polytetrafluoroethylene is relatively large, ranging from hundreds of thousands to more than 10 million.

Although the breaking of carbon-carbon bonds and carbon-fluorine bonds in perfluorocarbon compounds requires the absorption of 346.94 and 484.88 kJ/mol of energy respectively, the depolymerization of polytetrafluoroethylene to generate 1 mol of tetrafluoroethylene only requires 171.38 kJ of energy. Therefore, during high-temperature cracking, polytetrafluoroethylene mainly depolymerizes into tetrafluoroethylene. The weight loss rate (%) of polytetrafluoroethylene at 260, 370 and 420°C is 1×10-4.4×10-3 and 9×10-2 per hour respectively. It can be seen that polytetrafluoroethylene can be used for a long time at 260°C. Since highly toxic byproducts such as fluorophosgene and perfluoroisobutylene are also produced during high-temperature cracking, special attention should be paid to safety protection and prevent polytetrafluoroethylene from contacting open flames.