PTFE, PFA, FEP, PVDF Fluoroplastic products industry experts
Life of PTFE
Classification:
Industry dynamics
Author:
Teflon tube little sister
Source:
Teflon tube little sister
Release time:
2008-09-17
Visits:
Polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE), commonly known as "plastic king", is a polymer made by polymerizing tetrafluoroethylene as a monomer. White waxy, translucent. Polytetrafluoroethylene is called "plastic king" and has some excellent characteristics: polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE), commonly known as "plastic king", is a polymer made by polymerizing tetrafluoroethylene as a monomer. White waxy, translucent, heat resistance, excellent cold resistance, can be in -180~260°C long-term use. This material has the characteristics of acid and alkali resistance, resistance to various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, its coefficient of friction is very low, so it can be used for lubrication, but also become an ideal coating for easy cleaning of water pipes; toxic, human carcinogens.
1. High temperature resistance: the working temperature reaches 250 ℃.
Low temperature resistance: good mechanical toughness; even if the temperature drops to -196 ℃, it can maintain an elongation of 5%.
3. Corrosion resistance: For most chemicals and solvents, it is inert, capable of strong acid and alkali, water and various organic solvents.
4, weather resistance: the best aging life in plastics.
5, high lubrication: is the lowest coefficient of friction in solid materials.
6, non-adhesion: is the smallest surface tension in solid materials, does not adhere to any substance.
7, non-toxic: with physiological inertia, as artificial blood vessels and organs long-term implantation in the body without adverse reactions.
Polytetrafluoroethylene is one of the polymer materials with the best known stability. It is acid, alkali, solvent, high temperature and ultraviolet radiation. The pressure of 0.4MP is not high. The outdoor working condition of wind, frost, rain and snow is a good working condition compared with other medium working conditions. As long as the material and manufacturing process of the pipe are qualified, there will be no problem in using the roof for 30 years. However, polytetrafluoroethylene is not wear-resistant, pay attention to fixing and no shaking friction.
Figure 1 ptfe tube source: Teflon tube little sister
How long is the life of PTFE?
In addition to the quality of raw materials or improved conditions of PTFE itself, the service life of PTFE is related to the following external environment:
1. Long-term use temperature, instantaneous maximum low use temperature;
2. Use environment (strong acid, strong alkali, water, oil, exposure), dynamic friction, static friction, pressure;
3. Using special processing technology, the steel pipe and plastic pipe are closely combined, can withstand positive pressure 1. 6Mpa, negative pressure: 77Kpa; Can be used normally in -60°C ~ 260°C.
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The friction coefficient of polytetrafluoroethylene material is lower than that of known solid materials. Its specific applications include bearings for chemical equipment, papermaking machinery and agricultural machinery, piston rings, machine tool guide rails and guide rings. It is widely used in civil construction engineering as a support slider for bridges, tunnels, steel structure roof trusses, large chemical pipelines and storage tanks, as well as as bridge supports and bridge swivel. However, if you want to delay the service life of the material, you should have the correct method of use. For example, after the PTFE is installed, use a gummed paper iron cover or use a plastic film to cover and protect the parts that are easily scratched. Safety guardrail protection. In addition, it will not be bad if it does not exceed the specified temperature.
In general, there is no definite parameter regarding the service life of polytetrafluoroethylene. Pressure, temperature, chemical medium, lubricant, shape, size, friction and other factors will affect the service life. For details, you can find Teflon tube manufacturer Teflon tube sister to communicate and learn more about proofing.
Shenzhen Dankai Technology Co., Ltd. (ShenZhen DanKai Technology Co., Ltd.), whose predecessor was the Fluoroplastic Material Factory of Dongguan Dandi Insulation Material Co., Ltd. established in 1998, specializes in the research and development, production and sales of FEP, PFA, PTFE and other fluoroplastic tube rod sheet membrane products and other insulation materials. The company has international standards of senior R & D team and the introduction of foreign fluorine plastic products production line. Some fluoroplastic products through ISO9001, SGS, FDA certification, Huawei, Foxconn, the United States, ZTE, Intel, AirTAC and other domestic and foreign cooperation customers fully affirmed. The company's main products are: ① pipes: Ptfe pipes, Fep pipes, Pfa pipes, Pvdf pipes; ② Heat shrinkable tubes: Ptfe heat shrinkable tubes, Fep heat shrinkable tubes, Pfa heat shrinkable tubes, Pvdf heat shrinkable tubes; ③ Plate rod film: Ptfe plate rod film, Feep plate rod film, Pfa plate rod film, Pvdf plate rod film, etc. PE: PE, special, spiral tube, spring tube, rotary cutting tube, welding rod, tee, straight, gasket, joint, cone rod, flared tube, sealing tube, braided tube, corrugated tube, etc. At the same time can be customized according to customer requirements processing production of various specifications of fluorine plastic products.
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