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Ptfe tube
- Categories:Industry news
- Author:PFA tube lady
- Origin:PFA tube lady
- Time of issue:2004-08-29 10:03
- Views:
Ptfe tube
- Categories:Industry news
- Author:PFA tube lady
- Origin:PFA tube lady
- Time of issue:2004-08-29 10:03
- Views:
One, Ptfe tube
PTFE tube (polytetrafluoroethylene) has excellent chemical stability, can withstand all strong acids, strong alkalis, strong oxidants, and does not interact with various organic solvents.
PTFE tube has a wide temperature range. It can be used at -180℃~250℃ for a long time under normal pressure. After 1000h of high temperature treatment at 250℃, its mechanical properties will change little.
PTFE tube has a very low friction factor, is a good anti-friction, self-lubricating material, its static friction coefficient is less than the dynamic friction coefficient, so it has the advantages of low starting resistance and smooth running when used to make bearings. Because PTFE is non-polar, heat-resistant and does not absorb water, it is also an excellent electrical insulating material. It also has excellent aging resistance, non-stickiness and non-combustibility.
The Chinese trade names of PTFE tubes are "Teflon" (teflon), "Teflon", "Teflon", "Teflon" and so on. It is a polymer compound formed by polymerization of tetrafluoroethylene. Its structure is simplified as -[-CF2-CF2-]n-. It has excellent chemical stability and corrosion resistance, and is the most corrosion-resistant in the world today. One of the best materials, in addition to molten alkali metal, chlorine trifluoride, chlorine pentafluoride and liquid fluorine, it can withstand all other chemicals, boil in aqua regia without change, and is widely used in various needs of acid and alkali resistance and organic For solvents.
Ptfe tube has airtightness, high lubrication, non-stick, electrical insulation, good anti-aging ability, and excellent temperature resistance (it can work for a long time at a temperature of plus 250°C to minus 180°C). Teflon itself is not toxic to humans. The operating temperature is -190～250℃, allowing rapid cooling and heating, or alternate operation of cooling and heating. Pressure -0.1～6.4Mpa.
Picture 1: Ptfe tube source: Shenzhen Dankai
The production of PTFE has solved many problems in the chemical, petroleum, pharmaceutical and other fields. Polytetrafluoroethylene seals, gaskets, gaskets. Polytetrafluoroethylene seals, gaskets, and gaskets are made of suspension polymerized polytetrafluoroethylene resin. Compared with other plastics, PTFE has the characteristics of chemical resistance, and it has been widely used as a sealing material and filling material. The dispersion can be used as an insulating dipping solution for various materials and as an anticorrosive coating on the surface of metal, glass, and ceramics. Various PTFE rings, PTFE gaskets, PTFE packings, etc. are widely used for sealing various anticorrosive pipeline flanges. In addition, it can also be used for spinning, polytetrafluoroethylene fiber-fluorine fiber (foreign trade name is Teflon).
2. PTFE high temperature casing
PTFE high temperature casing has outstanding excellent comprehensive properties, high temperature resistance, corrosion resistance, non-stick, self-lubricating, excellent dielectric properties, and very low friction coefficient.
PTFE high temperature casing is used as engineering plastic and can be made into polytetrafluoroethylene pipe, rod, belt, plate, film, etc. It is generally used in corrosion-resistant pipelines, containers, pumps, valves, and radar and high-frequency systems with high performance requirements. Communication equipment, radio equipment, etc.
Adding any filler that can withstand the sintering temperature of PTFE can greatly improve the mechanical properties while maintaining other excellent properties of PTFE. Filled varieties include glass fiber, metal, metalized oxide, graphite, molybdenum disulfide, carbon fiber, polyimide, EKONOL... etc. The wear resistance and limit PV value can be increased by 1000 times.
PTFE high temperature sleeve can be formed by compression or extrusion processing; it can also be made into water dispersion for coating, impregnation or fiber. Polytetrafluoroethylene is widely used in industries such as nuclear energy, national defense, aerospace, electronics, electrical, chemical, machinery, instruments, meters, construction, textiles, metal surface treatment, pharmaceuticals, medical treatment, textiles, food, metallurgy and smelting, etc. , Corrosion-resistant materials, insulating materials, anti-stick coatings, etc., making it an irreplaceable product.
Picture 2: PVDF tube source: Shenzhen Dankai
The mechanical properties of Ptfe high temperature casing are soft. Has very low surface properties.
High temperature resistance: long-term use temperature 200~260 degrees;
Low temperature resistance: still soft at -100 degrees;
Corrosion resistance: resistant to aqua regia and all organic solvents;
Weather resistance: the best aging life among plastics;
High lubrication: has the smallest coefficient of friction in plastics (0.04);
Non-sticky: It has the smallest surface tension among solid materials and does not adhere to any substances;
Non-toxic: with physiological inertness; excellent electrical properties, is an ideal C-level insulating material.
Shenzhen DanKai Technology Co., Ltd. (ShenZhen DanKai Technology Co.,ltd.), whose predecessor is Dongguan Dandi Insulation Material Co., Ltd. Fluoroplastic Material Factory, 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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