Application of PTFE

Application of PTFE

PTFE has excellent high and low temperature performance and chemical stability, very good electrical insulation, non-adhesive, weather resistance, non-combustibility and good lubricity, applications from the aerospace field to a wide range of daily commodities, becoming an indispensable material for solving many key technologies in modern science and technology, military and civilian use. The following mainly introduces PTFE in anti-corrosion and wear reduction, sealing, corrosion resistance, anti-adhesive, electrical, construction and medical applications.

1、Teflon in the application of anti-corrosion and wear reduction

According to the relevant statistics of developed countries, in today's industrialized countries each year by corrosion and economic losses accounted for about 4% of the gross national economic output. A considerable number of accidents on chemical production is due to equipment corrosion, media leakage caused by chemical reactions. It can be seen, due to corrosion caused by the loss of good harm problem is serious, and has attracted widespread attention. PTFE material to overcome the ordinary plastic, metal, graphite, ceramic and other corrosion resistance, flexibility and other shortcomings, with its excellent resistance to high and low temperatures and corrosion resistance, can be used in harsh conditions of temperature, pressure and media, etc., has become the main petroleum, chemical, textile and other industries Corrosion-resistant materials.

PTFE pipe is mainly used as a corrosive gas, liquid, steam or chemical transport pipe, exhaust pipe. PTFE dispersion resin molding pushing tube lined into the steel tube to form a lining, or PTFE pushing tube outside the winding glass fiber reinforced, or PTFE pushing tube outside with steel wire braid winding reinforced in high pressure to transfer liquid media, as an indispensable part of the hydraulic transmission, and can greatly improve the rupture strength at high temperatures while having good bending fatigue.

Because PTFE material friction coefficient is the lowest known solid materials, so this makes the filling PTFE material to become the most ideal material for oil-free lubrication of mechanical equipment parts. For example, paper, textile, food and other industrial areas of equipment plus lubricants are prone to product contamination, so filled PTFE materials solve this problem. In addition, experiments have proved that a certain amount of solid additives added to the engine oil can effectively save engine fuel oil about 5%.

2、Corrosion-resistant sealing material of PTFE

PTFE in the chemical industry is another major application of sealing materials. Due to the good comprehensive performance of PTFE, is any kind of sealing materials are incomparable, it can be used in a variety of harsh occasions sealing, especially for high temperature, high corrosion resistance requirements.

PTFE raw material tape fiber long, high strength, and plasticity, good ductility, apply a small compression force can be completely sealed, easy to operate and apply, used in uneven or precise structure of the surface is more efficient, has a good sealing performance and can improve the corrosion resistance, to expand its use.

Sliding parts of the seal using PTFE filler, you can get good corrosion resistance stability, and it has a certain compression resilience, sliding resistance is low. Filled PTFE sealing materials are used in a wide range of temperatures, is the main alternative to traditional asbestos gasket materials, but also has a high modulus, high strength, creep resistance, fatigue resistance, and high thermal conductivity, coefficient of thermal expansion and friction coefficient of small performance, adding different fillers can expand the range of applications.

3、Teflon anti-sticky application

PTFE material has the smallest surface tension in solid materials, non-adhesive any material, but also has high and low temperature resistance, non-toxic excellent characteristics, so PTFE as a coating commonly used as an anti-adhesive lining of tableware, mainly for non-stick pans and microwave oven liner. 1 PTFE in the application of anti-corrosion and wear reduction.

According to the relevant statistics of developed countries, in today's industrialized countries each year by corrosion and economic losses accounted for about 4% of the gross national economic output. A considerable number of accidents on chemical production is due to equipment corrosion, media leakage caused by chemical reactions. It can be seen, due to corrosion caused by the loss of good harm problem is serious, and has attracted widespread attention. PTFE material to overcome the ordinary plastic, metal, graphite, ceramic and other corrosion resistance, flexibility and other shortcomings, with its excellent resistance to high and low temperatures and corrosion resistance, can be used in harsh conditions of temperature, pressure and media, etc., has become the main petroleum, chemical, textile and other industries Corrosion-resistant materials.