Hello everyone, I am the editor. Today I will introduce you to perfluororubber. The following content is compiled by the editor and the relevant content is for reference only.

Definition: Perfluororubber refers to the terpolymer of perfluoro(hydroxymethacrylate) ether, tetrafluoroethylene and perfluoroalkene ether. Also known as perfluoroether plastic

Features: It has ductility and the heat resistance and chemical stability of PTFE. The long-term operating temperature is -39~288 degrees Celsius, and it can reach 315 degrees Celsius in the short term. It still has a certain plasticity under less than the aging performance, is hard but not brittle, and can be bent. In addition to swelling in fluorinated organic solvents, it is stable to any chemicals.

The basic principle of making perfluororubber: it is composed of perfluoro(hydroxymethacrylate) ether, tetrafluoroethylene and a small amount of perfluoroalkenyl ether, with saddle perfluorocarbon as the wetting agent and magnesium perhydroxide-sodium bisulfite as the trigger. The agent is obtained by emulsion polymerization at a working pressure of 1.4~4.2MPa and a temperature of 40~100 degrees Celsius. Diamine or 2,2'-bis(4-phenylhydroxybutane) is used to generate bi-nucleophilic substitution with the fluorine on the perfluorobenzene ring. And vulcanized rubber

Perfluoroelastomer application: The production and processing performance is weak. It is used in places where fluororubber cannot be used and the standards are strict. Make seals that are resistant to a variety of substances, such as rocket fuel, navel, oxides, dinitrogen tetroxide, fuming nitric acid, etc., and are used in aerospace, airlines, chemical plants, crude oil, nuclear power generation and other industrial sectors.

Other advantages: In addition to excellent chemical resistance and temperature resistance, perfluoroelastomers are homogeneous and have no problems such as penetration, cracks and pinholes on the surface. These features can improve sealing performance, extend operation cycle, and effectively reduce maintenance costs. The efficient service life of Kalrez? products will minimize unplanned downtime, increase facility utilization and increase production capacity. The long-term role of perfluoroether plastic sealing parts can improve manufacturing economic efficiency and reduce maintenance costs. This total cost is much higher than the first purchase cost of the seal. Selecting and installing Kalrez® high-performance sealing products can increase mean time between maintenance (MTBR) and reduce recurring downtime and repair costs. For some special industries, the damage caused by abnormal shutdown is much higher than the cost of repair parts and labor. Perfluoroether plastic products can effectively assist customers to improve the reliability of processing technology, increase the operating time of facilities, and obtain the highest economic benefits for customers.

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