All kinds of PTFE products have played a pivotal role in the national economic fields such as chemical industry, machinery, electronics, electrical appliances, military industry, aerospace, environmental protection and bridges.
Tetrafluoroethylene board is suitable for the temperature of -180℃~+250℃. It is mainly used as electrical insulation materials and linings for contact with corrosive media, supporting sliders, rail seals and lubricating materials. It is used in light industry by rich cabinet furniture. , Widely used in chemical, pharmaceutical, dye industry containers, storage tanks, reaction tower kettles, anti-corrosion lining materials for large pipelines; aviation, military and other heavy industries; machinery, construction, traffic bridge sliders, guide rails; printing and dyeing, light industry, textiles Industry’s anti-sticking materials, etc.
Material advantages
High temperature resistance – the working temperature can reach 250°C.
Low temperature resistance – has good mechanical toughness; even if the temperature drops to -196°C, it can maintain an elongation of 5%.
Corrosion resistance – inert to most chemicals and solvents, resistant to strong acids and alkalis, water and various organic solvents.
Weather resistant – has the best aging life among plastics.
High lubrication – the lowest coefficient of friction among solid materials.
Non-adhesion – it is the smallest surface tension among solid materials, does not adhere to any substance, and its mechanical properties have an extremely small friction coefficient, which is only 1/5 of that of polyethylene, which is an important feature of perfluorocarbon surfaces. And due to the extremely low intermolecular force of fluorine-carbon chains, PTFE is non-sticky.
Non-toxic – it is physiologically inert and has no adverse reactions when implanted in the body as an artificial blood vessel and organ for a long time.
Electrical properties PTFE has low dielectric constant and dielectric loss in a wide frequency range, and high breakdown voltage, volume resistivity and arc resistance.
Radiation resistance The radiation resistance of polytetrafluoroethylene is poor (104 rads), and it is degraded by high-energy radiation, and the electrical and mechanical properties of the polymer are significantly reduced. Application PTFE can be processed by compression or extrusion; it can also be made into an aqueous dispersion for coating, impregnation or making fibers. PTFE is widely used as high and low temperature resistant, corrosion resistant materials, insulating materials, anti-stick coatings, etc. in atomic energy, aerospace, electronics, electrical, chemical, machinery, instruments, meters, construction, textile, 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 limiting oxygen index is below 90.
Acid and alkali resistance: insoluble in strong acid, strong alkali and organic solvent.
Oxidation resistance: It can resist the corrosion of strong oxidants.
Acidity and alkalinity: neutral.
The mechanical properties of PTFE are relatively soft. Has very low surface energy.
Polytetrafluoroethylene (F4, PTFE) has a series of excellent performances: high temperature resistance – long-term use temperature 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 among plastics; high lubricity—the smallest coefficient of friction (0.04) among plastics; non-stick—the smallest surface tension among solid materials without sticking to any substance; non-toxic—physiologically inert; Excellent electrical properties, it is an ideal Class C insulating material.
Post time: Jan-17-2023