PTFE Flat plastic Washer

PTFE flat washers have played a pivotal role in the chemical industry, machinery, electronics, electrical appliances, military, aerospace, environmental protection bridges, and other areas of the national economy.

PTFE flat washers are suitable for -180 ℃ ~ +250 ℃ temperatures, mainly used as electrical insulation materials and contact with corrosive media lining, support sliders, track seals, and lubricating materials sealing and locking, mostly used in light industry, are widely used in the chemical industry, pharmaceuticals, dyestuffs industry containers, storage tanks, reaction towers kettles, large pipeline corrosion-resistant lining materials; aviation, military and other heavy industry fields; machinery, construction, Transportation bridge slider, guide rail; printing and dyeing, light industry, textile industry, anti-adhesive materials, and so on.

High-temperature resistance: the use of working temperature up to 250 ℃.

Low-temperature resistance: good mechanical toughness; even if the temperature drops to -196 ° C, it can also maintain the elongation of 5%.

Corrosion resistance: to most chemicals and solvents, showing inertia, resistance to strong acids and alkalis, water, and various organic solvents.

Weather Resistant: Has the best aging life of any plastic.

Highly lubricating - has the lowest coefficient of friction of any solid material.

Non-adhesion: It is the smallest surface tension among solid materials and does not adhere to any substance. Mechanical properties It has a very small coefficient of friction, only 1/5 of that of polyethylene, which is an important feature of perfluorocarbon surfaces. Also, due to the fluorine-carbon chain intermolecular force being extremely low, so PTFE is non-sticky.

Non-toxic: It is physiologically inert and has no adverse reaction when implanted into the body for a long time as artificial blood vessels and organs.

Electrical properties: polytetrafluoroethylene in a wide frequency range of dielectric constant and dielectric loss are very low, and breakdown voltage, volume resistivity, and arc resistance are high.

Radiation resistance: polytetrafluoroethylene radiation resistance is poor (104 rads), caused by high-energy radiation degradation, the electrical properties of polymers and mechanical properties are significantly reduced. Applications PTFE can be compressed or extruded and processed into flat washers; it can also be made into aqueous dispersions for coating, impregnation, or made of fiber. PTFE is widely used in atomic energy, aerospace, electronics, electrical, chemical, mechanical, instrumentation, instrumentation, construction, textile, food and other industries as a sealing tight.

Atmospheric aging resistance, irradiation resistance, and low permeability: after long-term exposure to the atmosphere, the surface and performance remain unchanged.

Incombustibility: limited oxygen index below 90.

Acid and alkali resistance: insoluble in strong acids, alkalis, and organic solvents.

Oxidation resistance: resistant to corrosion by strong oxidizing agents.

Acidity and alkalinity: neutral.

Polytetrafluoroethylene has soft mechanical properties. It has very low surface energy.

Polytetrafluoroethylene (F4, PTFE) flat washers have a series of excellent performances: high-temperature resistance - long-term use of temperature 200 ~ 260 degrees, low-temperature resistance - still soft at -100 degrees; corrosion resistance - resistant to aqua regia and all organic solvents;

Climate resistance: PTFE plastic gaskets in the best aging life; high lubrication - with the smallest coefficient of friction in plastics (0.04); non-sticky - with the smallest surface tension in the solid material without adhering to any substance; non-toxic - with physiological inertia; excellent electrical properties, is the ideal PTFE washers for Class C insulation.