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Unique performance of PTFE

Date:2018-03-05 15:06:00

The unique properties of PTFE make itwidely used in the fields of chemical, petroleum, textile, food, paper,medicine, electronics and machinery, etc.

1。 Theapplication of anticorrosive properties due to the defects in the corrosionresistance of rubber, glass, metal alloys and other materials, it is difficultto meet the harsh conditions of temperature, pressure and chemical mediumcoexistence environment, The damage caused by this is quite remarkable。 PTFEmaterials have become the main anticorrosive materials in petroleum, chemical,textile and other industries for their excellent corrosion resistance。 Theirspecific applications include: pipes for conveying corrosive gases, exhaustpipes, etc。 Chemical equipment such as steam pipes, high pressure tubing ofrolling mills, aircraft hydraulic and cold pressure systems, high and lowpressure pipelines, distillation towers, heat exchanger, kettle, tower, tanklining, valves, etc。-sealing The performance of the part has a great influenceon the efficiency and performance of the whole machine equipment。 PTFE materialhas corrosion resistance, aging resistance, low friction coefficient andnon-viscosity, wide range of temperature resistance, The elastic propertiesmake it very suitable for the manufacture of seals with high corrosionresistance and temperature higher than 100 , such as machines,heat exchangers, high pressure vessels, large diameter containers, valves,seals for groove flanges of pumps, glass reaction pots, Flat flanges, seals forlarge diameter flanges, shafts, piston rods, valve rods, worm pumps, seals forpull rods, etc. 

2. Lowfriction performance for load applications due to some equipment The frictionpart of the oil should not be lubricated, for example, when the lubricating oilwill be dissolved by the solvent and fail, or when the products in the fieldsof paper making, pharmaceutical, food, textile and other industries need toavoid the contamination of lubricating oil, This makes filling PTFE materialthe ideal material for mechanical equipment parts without oil lubrication(direct load). This is becauseThe material has the lowest coefficient offriction of any known solid material. Its specific uses include bearings forchemical equipment, paper-making machinery, agricultural machinery, pistonrings, machine tool guides, guide rings, and widely used as bridges in civiland architectural engineering. Tunnels, steel roof trusses, large chemicalpipelines, support sliders for storage tanks, and as bridge supports andturnstiles, etc. 

 3. Inelectronic and electrical applications, the use of PTFE materials with low lossand small dielectric constants makes them enamelled wires, PTFE film is usedfor micro motor, thermocouple, control device and so on. It is used tomanufacture capacitors, radio insulation pads, insulated cables, etc. The idealinsulating material for motors and transformers is also one of theindispensable materials for industrial electronic components such as aerospace.Oxygen sensors can be manufactured; optical fibers can be manufactured by usingfluorine plastics to produce polar charge deviations at high temperature andhigh pressure, microphones, loudspeakers, parts on robots, etc. 

4, The application of expanded PTFEmaterials in medical and pharmaceutical fields is pure inert, has very strongbiological adaptability, the body will not cause rejection, no physiologicalside effects on the human body, can be sterilized in any way, and has a porousstructure, which can be used for a variety of rehabilitation solutions,including artificial blood vessels for soft tissue regeneration and the patchand for blood vessels, heart, surgical suture of general surgery and orthopedicsurgery。 

5. Application of anti-viscosityperformance 

PTFE materials have the smallest surfacetension in solid materials, do not adhere to any substance, but also have highand low temperature resistance excellent properties, This makes it widely usedin areas such as the manufacture of non-stick cookers。 The anti-adhesiveprocess consists of two main types: the installation of PTFE parts or flakes onthe substrate, With the continuous development of material applicationtechnology, the three main disadvantages of PTFE material are being overcome:cold flow property, hard to weld, and difficult to melt processing, and thematerial has three disadvantages: cold flow property, hard to weld, anddifficult to melt processing, with the continuous development of materialapplication technology, the three main disadvantages of PTFE coating orcomposite lacquer cloth with glass are gradually overcome。 So that it canprevent oil seepage in optics, electronics, medicine, and petrochemicaltransportation。 And so on many kinds of domain application foreground is morebroad。

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