PTFE/suspended fine powder/polytetrafluoroethylene
polytetrafluoroethylene (abbreviated as Teflon or [PTFE,F4]) is a polymer compound polymerized from tetrafluoroethylene and has excellent chemical stability and corrosion resistance (It is one of the best corrosion resistant materials in the world today. Except for molten metal sodium and liquid fluorine, it can withstand all other chemicals. It cannot change when boiled in aqua regia. It is widely used in various types of acid, alkali and organic solvents that require resistance to organic solvents), tightness, high lubrication and non-adhesion, electrical insulation, good aging resistance, and excellent temperature resistance (can work for a long time at temperatures from +250℃ to-180℃). Teflon is not toxic to humans.
PTFE can be compressed or extruded; it can also be made into aqueous dispersions for coating, impregnation or fiber making. Polytetrafluoroethylene is widely used as high and low temperature resistance in atomic energy, national defense, aerospace, electronics, electricity, chemical industry, machinery, instrument, construction, textile, metal surface treatment, pharmaceuticals, medical care, textiles, food, metallurgical smelting and other industries., corrosion-resistant materials, insulating materials, anti-stick coatings, etc., making it an irreplaceable product. PTFE has outstanding excellent comprehensive properties, such as high temperature resistance, corrosion resistance, non-stick, self-lubricating, excellent dielectric properties, and a very low coefficient of friction. Used as engineering plastic, it can be made into polytetrafluoroethylene pipes, rods, belts, plates, films, etc. It is generally used in corrosion-resistant pipelines, containers, pumps, valves, radars, high-frequency communication equipment, radio equipment, etc. with high performance requirements. By adding any filler that can withstand the sintering temperature of PTFE to PTFE, its mechanical properties can be greatly improved. At the same time, other excellent properties of PTFE are maintained. The filled varieties include glass fiber, metals, metallized oxides, graphite, molybdenum disulfide, carbon fibers, polyimide, EKONOL..., etc., and the wear resistance and limit PV value can be increased by 1000 times.& nbsp;
PTFE pipe is made of suspension polymerized PTFE resin and extruded by plunger. PTFE has the best chemical resistance and dielectric properties among known plastics. PTFE woven packing is a good dynamic sealing material. It is woven from expanded polytetrachloroethylene tape. PTFE woven packing is a good dynamic sealing material. It is woven from expanded polytetrachloroethylene tape. It has excellent properties such as low friction coefficient, wear resistance, chemical corrosion resistance, good sealing performance, no hydrolysis, and no hardening. Gasket seals and lubricating materials for work in a variety of media, as well as electrical insulation for use at a variety of frequencies. Capacitor dielectric, wire insulation, electrical instrument insulation, etc. PTFE film is suitable for capacitor dielectric, insulation layer of special cables, wire insulation, electrical instrument insulation and sealing gasket, and can also be used as non-adhesive tape, sealing tape, and mold release.
Purpose:
general-purpose material
Various rods, tubes, plates, membranes, belts, ropes, packings, gaskets, and graphite, molybdenum disulfide, aluminum oxide, glass fiber, carbon fiber as fillers to improve the mechanical properties of pure polytetrafluoroethylene.
Anti-corrosion
1. Pipelines and fittings: pure polytetrafluoroethylene pipe; polytetrafluoroethylene lined pipe; externally wrapped fiberglass steel pipe; steel composite flange; 2. Chemical container lining: polytetrafluoroethylene lined kettle; polytetrafluoroethylene lined groove; polytetrafluoroethylene lined tower; 3. Heat exchanger; polytetrafluoroethylene lined PTFE
4. Corrugated bellows; 5. Main components of valves and pumps; 6. Steel wire reinforced full-pressure hose; 7. Filter materials. The polytetrafluoroethylene membrane is stretched vertically and horizontally with a large number of air holes. It is a new material. By compounding it with other fabrics, it can be made into smoke and dust solid-phase anti-corrosion filter bags or rain gear with good waterproof, breathable, windproof and warmth. Sports clothing, cold clothing, special protective clothing and portable tents, aseptic filtration of compressed air for pharmaceutical use, various solvents, and filtration of high-purity gases in the electronics industry.
sealed class
1. Static sealing: sandwich gasket; seating belt; elastic sealing belt; 2. Dynamic sealing (packing, annular sealing parts): V-type sealing body-used for shafts, piston rods, valves; turbine pump internal seals; PTFE and rubber composite sealing ring; retractable mechanical seal with bellows.
Load carrier
1. Filled PTFE bearings, used for food chemical papermaking and textile machinery; 2. Porous copper-impregnated fluorine plastic metal bearings, which can be used normally under high temperature, high pressure, dry friction and vacuum conditions; PTFE oxidation resistance
3. PTFE fiber bearings are made of a composite fabric blended with PTFE fiber and glass fiber or other fibers for low speeds and high loads; 4. Filling PTFE piston rings, guide rings, machine tool guides and bridge sliders;
insulation class
1. Class C insulation material for wires and cables; 2. Sheath for stator and rotor water guide pipes and thermocouples of dual water internally cooled turbo-generator; 3. Microwave insulation material for high-frequency and ultra-high-frequency communication equipment and radar; 4. Printed circuit substrates and insulation materials for motors, transformers (including gas transformers); 5. Insulation materials for air conditioners, electronic ovens, various heaters and sulfur hexafluoride circuit breakers;
Anti-stick
1. PTFE glass cloth coating on the hot roll of the sizing machine-can eliminate the roller sticking phenomenon formed by chemical paste, greatly improve the production rate and the insolubility of the blank in strong acids, strong bases and organic solvents
Cloth quality; 2. Microwave drying conveyor belts in the food industry-compared with other materials, the conveyor belts do not absorb microwave energy, so non-stick objects have the advantages of saving electricity and cleaning; 3. Heat seal sleeves sealed in polyethylene bags are anti-stick materials; 4. Anti-stick coating-used for kitchen pots, bread cans, frozen food storage trays, electric iron bases, and copier pinch rollers;
Temperature resistant class
1. Drive transmission devices of microwave ovens, such as couplings and rollers of microwave ovens; 2. Temperature resistant accessories for various refrigerators, air conditioners, oxygen generators, and compressors;
other classes
1. Human substitute arteries, veins, and cardiac membranes; 2. Endoscopes, forceps catheters, and trachea; 3. Other medical equipment such as tubes, bottles, and filter cloth.
