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PTFE Seals Highly Chemical

Yangzhong Tianyou Seals Co.,Ltd | Updated: Jun 20, 2017

PTFE Seals Highly chemical

In the case of underdeveloped technology, people are always looking for corrosion resistance in the metal. But these devices are often high weight, can not solve a large number of erosion problems. After that, people began to try to use non-metallic resources to replace the metal. Plastic is the first application in our country is polytetrafluoroethylene.

 With the improvement of science and technology, the traditional anti-corrosion non-metallic materials, anti-erosion equipment development is increasingly perfect, the new corrosion-resistant non-metallic materials products continue to emerge. In the use of new technologies, new materials to develop anti-erosion of the new wave of products, polytetrafluoroethylene anti-erosion products Guilin a rapid development.

 Polytetrafluoroethylene has a high degree of chemical chaos, he can almost all of the commonly used strong erosion, hydrogen oxidation of chemical substances, but also has high temperature characteristics, so it is an ideal anti-erosion materials. Through the processing of molding technology research, polytetrafluoroethylene anti-erosion products in the industry more and more widely used.

Performance characteristics of polytetrafluoroethylene

 Polytetrafluoroethylene is a typical soft and weak polymer, macromolecules between the smaller gravitational attraction, stiffness, hardness, strength are small, in the long-term stress will be deformed.

Polytetrafluoroethylene is easily loaded when the creep phenomenon, is a typical cold liquid with plastic. The creep of PTFE varies with compressive stress, temperature and crystallinity, and the higher the temperature, the greater the creep. The crystallinity of PTFE is between 55% and 80%, and the creep is not more than 2%. When the crystallinity is below 55% and 80%, the creep increases rapidly.

Expanded polytetrafluoroethylene is a new type of medical polymer material, made of polytetrafluoroethylene resin by stretching and other special processing methods. White, flexible and flexible, with the formation of microfibrils connected to the network structure, these fine fibers to form numerous pores, making the expansion of polytetrafluoroethylene can be bent, blood compatibility, resistance to biological aging, for Manufacture of artificial blood vessels, heart patches and other medical products.

Polytetrafluoroethylene is a typical soft and weak polymer

Polytetrafluoroethylene is a typical soft and weak polymer, macromolecules between the smaller gravitational attraction, stiffness, hardness, strength are small, in the long-term stress will be deformed. Teflon is a suitable gasket, seal and smooth material for the processing of various Teflon rod manufacturers in corrosive media and electrical insulation parts using deqing polytetrafluoroethylene at various frequencies. Of non-filled polytetrafluoroethylene resin (which may contain recycled polytetrafluoroethylene resin) by molding, paste extrusion or plunger extrusion on the class of molded rods, polytetrafluoroethylene non-adhesive: no adhesion to any Material; greatly improve the use of life, long time Zhejiang polytetrafluoroethylene rods are more economical than glass products; limit temperature: to + 260 ℃ to -180 ℃ temperature for a long time operation; no toxic: Lazy, can be implanted in the human body, harmless to the human body; Teflon corrosion resistance: strong acid, alkali, aqua regia and a variety of organic solvents; in addition to molten metal sodium and liquid fluoride, the ability of all other chemicals, Boiled water can not afford to change.