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Life of PTFE
- Categories:Industry news
- Author:Miss Teflon tube
- Origin:Miss Teflon tube
- Time of issue:2008-09-17 15:21
- Views:
Life of PTFE
- Categories:Industry news
- Author:Miss Teflon tube
- Origin:Miss Teflon tube
- Time of issue:2008-09-17 15:21
- Views:
Polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE), commonly known as "Plastic King", is a polymer prepared by polymerizing tetrafluoroethylene as a monomer. White waxy, translucent. Polytetrafluoroethylene is called the "Plastic King" and has the following outstanding characteristics: Polytetrafluoroethylene (Poly tetra fluoroethylene, abbreviated as PTFE), commonly known as "Plastic King", is a polymer made by polymerizing tetrafluoroethylene as a monomer. Things. White waxy, translucent, excellent heat and cold resistance, and can be used for a long time at -180～260ºC. This material is resistant to acids, alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, its friction coefficient is very low, so it can be used as a lubricating effect, and it has become an ideal coating for easy cleaning of the inner layer of water pipes; it is a toxic and carcinogenic substance for humans.
1. High temperature resistance: the working temperature can reach 250℃.
2. Low temperature resistance: It has good mechanical toughness; even if the temperature drops to -196℃, it can maintain 5% elongation.
3. Corrosion resistance: It is inert to most chemicals and solvents, and can withstand strong acids and alkalis, water and various organic solvents.
4. Weather resistance: It has the best aging life among plastics.
5. High lubrication: it is the lowest friction coefficient among solid materials.
6. No adhesion: It is the smallest surface tension among solid materials and does not adhere to any substances.
7. Non-toxic and harmful: It is physiologically inert and has no adverse reactions as artificial blood vessels and organs implanted in the body for a long time.
Polytetrafluoroethylene is one of the most stable polymer materials known. It is resistant to acid, alkali, solvents, high temperature and ultraviolet rays. The pressure of 0.4MP is not high. The outdoor conditions of wind, frost, rain and snow are relatively good compared to other media conditions. The working conditions are quite good. As long as the pipe material and manufacturing process are qualified, it will not be a problem when used on the roof for 30 years, but the PTFE is not wear-resistant. Pay attention to the firmness and avoid shaking and friction, and the life of the joint It should be equivalent to the life of the pipe.
Figure 1 Source of ptfe tube: Miss Teflon tube
How long is the life of PTFE?
In addition to the quality of PTFE's own raw materials or improved conditions, the service life of PTFE is related to the following external environment:
1. Long-term use temperature, instantaneous maximum and 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 tightly combined, can withstand positive pressure 1.6Mpa, negative pressure: 77Kpa; it can be used normally within -60°C~+260°C.
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The coefficient of friction of PTFE material is low among known solid materials. Its specific uses include bearings for chemical equipment, papermaking machinery, agricultural machinery, as piston rings, machine tool guides, and guide rings; it is widely used in civil engineering It is used as a supporting slide block for bridges, tunnels, steel structure roof trusses, large chemical pipelines, storage tanks, as well as bridge supports and bridge swivels. However, if you want to delay the service life of the material, you should use the correct method. For example, after the PTFE is installed, cover the easily contaminated parts with adhesive tape or use plastic film to cover and protect the parts that are easily scratched. Set up safety guardrail protection. In addition, it will not be broken if it does not exceed the specified temperature.
In general, there are no definite parameters regarding the service life of PTFE. Pressure, temperature, chemical media, lubricants, shape, size, friction and other factors will affect the service life. For specific details, you can find the Teflon tube lady sister of the PTFE manufacturer to communicate with you and learn more about it.
Shenzhen DanKai Technology Co., Ltd. (ShenZhen DanKai Technology Co.,ltd.), whose predecessor was Dongguan Dandi Insulation Material Co., Ltd. Fluoroplastic Material Factory, which was established in 1998, specializes in FEP, PFA, PTFE and other fluoroplastic pipes. R&D, production and sales of rod, sheet and film products and other insulating materials. The company has a senior R&D team with international standards and a production line of fluorine plastic products imported from abroad. Some fluoroplastic products have passed ISO9001, SGS, FDA certification, and have been fully affirmed by domestic and foreign cooperative customers such as Huawei, Foxconn, Midea, ZTE, Intel, and AirTAC. The main products of the company are: ①Tubes: Ptfe tube, Fep tube, Pfa tube, Pvdf tube; ②Heat shrinkable tube: Ptfe heat shrinkable tube, Fep heat shrinkable tube, Pfa heat shrinkable tube, Pvdf heat shrinkable tube; ③Plate rod Membrane: Ptfe board and rod film, Fep board and rod film, Pfa board and rod film, Pvdf board and rod film; ④Insulation materials: silica gel, PE, PVC, UPE, etc.; ⑤Special category: PFA imported connector, spiral tube, spring tube , Rotary cut tube, welding rod, tee, straight-through, gasket, joint, taper rod, flared tube, sealing tube, braided tube, bellows, etc. At the same time, fluorine plastic products of various specifications can be customized and processed according to customer requirements.
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