Applications of Polytetrafluoroethylene Plastic (PTFE)

Applications of Polytetrafluoroethylene Plastic (PTFE)

Polytetrafluoroethylene (PTFE) because of its excellent resistance to high and low temperature test performance and chemical resistance, very good insulating properties, non-adhesion, aging resistance, flame retardant grade good self-lubrication, has won a wide range of chemical plants, crude oil, textiles, electrical and electronic appliances, machinery and equipment industries.

Polyphenylene Sulfide polytetrafluoroethylene ((PTFE) in the use of large quantities, the main purpose of a wide range of polyphenylene sulfide is an important type of polyphenylene sulfide. PTFE has excellent resistance to high and low temperature test performance and chemical resistance, very good insulating properties, non-adhesion, aging resistance, flame retardant grade good self-lubrication, the reputation of the PTFE rod. The material is gradually developed for the needs of national defense technology, and then slowly promoted to the civilian type, its main use involves aerospace engineering and civilian type of many levels, at this stage in the main use has become indispensable materials.

Application of PTFE

PTFE distinctive properties and thus in the chemical plant, crude oil, textiles, food, paper industry, chemical, electronic devices, machinery and other industries and marine work industry is a wide range of applications.

1. Application of corrosion resistance

Because plastic, laminated glass, metal alloys and other materials in the corrosion resistance level there are defects, can not meet the difficult high temperature, working pressure and mechanical substances coexist in the natural environment, thus bringing very shocking losses. PTFE has become a key corrosion-resistant material for crude oil, chemical plants, textiles and other fields due to its unique corrosion resistance. Its practical applications include: transportation of corrosive substances in the pipeline, exhaust pipe, steam piping, rolling mill hydraulic oil pipe, airfield hydraulic transmission system and cold extrusion system software high and low pressure piping, distillation unit, heat exchanger, kettle, tower, tank lining, gate valves and other chemical machinery and equipment.

Hydraulic seals performance advantages and disadvantages of the entire machine and equipment efficiency and performance have a great impact. PTFE material has a corrosion resistance, anti-aging, low frictional resistance and non-adhesion, high temperature resistance to cover a wide range of toughness makes it particularly suitable for the production of corrosion-resistant requirements of the strict application of the temperature is higher than 100 ° ° C of the hydraulic seals. Such as equipment, heat exchangers, pressure vessels, large-diameter vessels, gate valves, centrifugal pumps grooved flange hydraulic seals, laminated glass reaction pots, floor plan flange, large-diameter flange hydraulic seals, shafts, hydraulic cylinders, gate valve rods, gear pumps, support rods hydraulic seals.

2. Low friction performance in the field of load application

Because some part of the machine friction is not suitable for oil wetting, such as in the grease can be melted by organic solvents and ineffective place or paper industry, pharmaceutical industry, food, textiles and other industrial applications of the goods must prevent grease dirty, which will make the addition of PTFE material into the parts of the industrial equipment all oil-free wetting, immediately bear the load of the most idealized material. This is mainly because the dynamic friction factor of this material is the lowest among the known solid materials. Its specific main uses include chemical machinery and equipment, papermaking equipment, agricultural machinery rolling bearings, as engine pistons, machine tool rails, guide rings; in civil engineering commonly used as highway bridges, tunneling, steel roof, large and medium-sized hydraulic pipelines, storage tanks, support rollers, and as a bridge rubber bearings and railroad bridges, such as flexure body.

3. In the field of electronic and electrical applications

PTFE material inherent low loss and small relative dielectric constant so that it can be made of wire wrapped to be used for micro-motors, RTDs, control systems, etc.; PTFE plastic film is the manufacture of power capacitors, wireless communications insulation layer gaskets, insulated wires, motors and transformers idealized insulating layer materials, are aerospace engineering industries such as one of the indispensable materials of the electronic components; the use of fluorine plastic film on the O2 transmittance of the large, but the water vapor permeability is small. The use of fluoroplastic film O2 permeability is large, but the permeability of water vapor is small such selective permeability, the production of oxygen sensors; the use of polyphenylene sulfide at high temperatures, high pressure to produce the characteristics of the polar positive charge shift, the production of microphones, speakers, intelligent robots in the parts, etc.; the use of its low emissivity characteristics, the production of photoconductors.

4. Application of bentonite rhinoplasty PTFE material is all plastic, with a strong biological adaptability, will not cause the body's resistance, no physiological adverse reactions to human health, can be used in all ways, and has a multi-porous structure, and then suitable for a variety of recovery solutions, including mainly for subcutaneous tissue circulation regeneration of artificial blood vessels and patches, as well as used for the capillary, cardiovascular, medical and oncological and cosmetic suture wound. cardiovascular, medical oncology and cosmetic wound closure.

Application of Anti-Adhesive Properties

PTFE materials are widely used, for example, in the production of non-stick pans, because they have small interfacial tensions in the solid state, do not adsorb any chemicals, and have good resistance to high and low temperatures. There are two types of anti-stick technology: PTFE components or sheets are installed on the substrate, and PTFE coating or glass-backed lacquer cloth is absorbed on the plate through heat shrink film.

Accompanied by the continuous progress of the material use technology, PTFE material of the three major defects: cold flow, difficult to weld performance, difficult to melt process performance is gradually being rid of, thus making him in the electro-optical, electronic devices, petrochemical equipment, petroleum pipeline leakage prevention and other industries, such as the application of the broader prospects.

HONY plastic, your professional PTFE consultant, please send inquiry to sales@honyplastic.com