- 11
- Oct
Material advantages of PTFE board
Material advantages of PTFE board
High temperature resistance-the working temperature can reach 250℃.
Low temperature resistance-has good mechanical toughness; even if the temperature drops to -196 ℃, it can maintain 5% elongation.
Corrosion resistance-It is inert to most chemicals and solvents, and can withstand strong acids and alkalis, water and various organic solvents.
Weather resistance-has the best aging life among plastics.
High lubrication-is the lowest coefficient of friction among solid materials.
Non-adhesion–it is the smallest surface tension among solid materials and does not adhere to any material. The friction coefficient of mechanical properties is extremely small, only 1/5 of that of polyethylene, which is an important feature of perfluorocarbon surface. In addition, because the fluorine-carbon chain intermolecular forces are extremely low, PTFE is non-sticky.
Non-toxic-It is physiologically inert and has no adverse reactions as artificial blood vessels and organs implanted in the body for a long time.
Electrical properties Polytetrafluoroethylene has low dielectric constant and dielectric loss in a wide frequency range, and has high breakdown voltage, volume resistivity and arc resistance.
Radiation resistance Polytetrafluoroethylene has poor radiation resistance (104 rad), and it degrades after being exposed to high-energy radiation, and the electrical and mechanical properties of the polymer are significantly reduced. Application Polytetrafluoroethylene can be formed by compression or extrusion processing; it can also be made into water dispersion for coating, dipping or making fibers. Polytetrafluoroethylene is widely used as high and low temperature resistant, corrosion resistant materials, insulating materials, anti-sticking coatings, etc. in nuclear energy, aerospace, electronics, electrical, chemical, machinery, instruments, meters, construction, textiles, food and other industries.
Atmospheric aging resistance: radiation resistance and low permeability: long-term exposure to the atmosphere, the surface and performance remain unchanged.
Non-combustibility: The oxygen limit index is below 90.
Acid and alkali resistance: insoluble in strong acids, strong alkalis and organic solvents.
Oxidation resistance: resistant to corrosion by strong oxidants.
Acidity: Neutral.
The mechanical properties of PTFE are relatively soft. Has a very low surface energy.
Polytetrafluoroethylene (F4, PTFE) has a series of excellent performance: high temperature resistance-long-term use temperature of 200~260 degrees, low temperature resistance-still soft at -100 degrees; corrosion resistance-resistance to aqua regia and all organic solvents; Weather resistance-the best aging life in plastics; high lubrication-with the smallest coefficient of friction (0.04) in plastics; non-stickiness-with the smallest surface tension in solid materials without adhesion of any substances; non-toxic-with physiological inertness; Excellent electrical properties, it is an ideal C-class insulating material.