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What is the temperature range of Teflon
- Categories:Industry news
- Author:PFA tube lady
- Origin:PFA tube lady
- Time of issue:2007-07-07 15:21
- Views:
What is the temperature range of Teflon
- Categories:Industry news
- Author:PFA tube lady
- Origin:PFA tube lady
- Time of issue:2007-07-07 15:21
- Views:
1. What is the temperature range of Teflon?
The temperature resistance of Teflon is a requirement that many people need to understand. High temperature resistance, Teflon has been working and can withstand 260 degrees, and the instantaneous high temperature can reach 400 degrees.
In addition to high temperature resistance and low temperature resistance, Teflon can be used for a long time to -190 degrees, but thermal expansion and contraction are large, and the general safe and effective limit use temperature is about -70 degrees.
Teflon is a special plastic with high temperature resistance, wear resistance, self-lubricating (very low friction coefficient), and chemical properties: corrosion resistance, strong acid and alkali resistance, and can withstand molten alkali metals , Fluorinated medium and all strong acids (including aqua regia), strong oxidants, reducing agents and various organic solvents except sodium hydroxide above 300℃, the chemical name is polytetrafluoroethylene (PTFE).
Teflon is a registered trademark used by DuPont on a series of fluoropolymer products. It was invented and manufactured in the Jackson laboratory by Dr. Roy J. Plunkett.
About 70 years ago, chemist Dr. Roy J. Plunkett invented polytetrafluoroethylene resin in DuPont's Jackson laboratory in New Jersey, USA. DuPont used "Teflon" as the brand name of the product. Subsequently, DuPont developed a series of products in addition to Teflon polytetrafluoroethylene resin, including Teflon AF (amorphous fluoropolymer), Teflon FEP (fluorinated ethylene propylene resin), Teflon FFR (fluoropolymer foam resin) , Teflon NXT fluoropolymer resin, Teflon PFA (perfluoroalkoxy resin) and so on.
Polytetrafluoroethylene is commonly known as the "Plastic King". It is a polymer compound formed by polymerization of tetrafluoroethylene. It has excellent chemical stability and corrosion resistance (it is one of the best corrosion resistance materials in the world today. In addition to molten sodium and liquid fluorine, it can withstand other All chemicals do not change when boiled in aqua regia. They are widely used in all kinds of anti-acid, alkali and organic solvents), airtightness, high lubrication and non-stickiness, electrical insulation, good anti-aging endurance, and excellent temperature resistance.
Picture 1: Teflon tube source: Shenzhen Dankai
Second, how to distinguish the specifications of Teflon tube
When it comes to the specifications of Teflon tubes, people who don't know how to do it really don't understand. How to distinguish the specifications of Teflon tubes? It is simple and simple. Visually imagine what data a tube has. Teflon tubes have inner diameter, diameter, and wall thickness. These three data can be adapted from time to time. In addition to these three data, there is also a metric system. And imperial.
Teflon tube specifications have conventional and special specifications
Common specifications: inner diameter * outer diameter (unit: mm)
Metric system: 2*4 3*5 4*6 5*7 6*8 8*10 8*12 9*12 10*12
12*14 14*16 16*18 18*20 20*22
British system: 1/8 inch (1.6*3.2) 1/4 inch (3.96*6.35) 3/8 inch (6.35*9.525)
1/2 inch (9.5*12.7) 3/4 inch (15.88*19.05) 1 inch (22.2*25.4)
Other specifications can be produced, the inner diameter is 0.5mm to 200mm, and the wall thickness is 0.12mm to 3mm.
Special specifications are 2.5*3.5, 3.8*5.8, etc., which are produced according to the specifications required by customers.
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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