What are the new varieties of fluororubber?

Fluororubber (FKM), as a synthetic high-molecular elastomer with fluorine atoms on the carbon atoms of the side chain or main chain, is hailed as the "King of Rubber" due to its outstanding oil resistance, high-temperature resistance, acid and alkali resistance, chemical corrosion resistance, oxidation resistance and insulation properties. With the advancement of technology and the continuous growth of industrial demands, the types of fluororubber are also constantly expanding and innovating. This article will take you through some new varieties of fluororubber and their characteristics at present.

Perfluoroether rubber (FFKM)

Perfluoroether rubber is a high-end variety of fluororubber, mainly composed of tetrafluoroethylene, perfluoroalkyl vinyl ether and a small amount of a third monomer with a vulcanization point through copolymerization. All the hydrogen atoms on the carbon atoms in its molecular structure are replaced by fluorine atoms, forming a kind of rubber that contains no C-H bonds at all. This special structure endows perfluoroether rubber with outstanding high-temperature resistance, medium resistance and oxidation resistance, and enables it to maintain good sealing and stability under extremely harsh conditions. Perfluoroether rubber is widely used in fields such as electronic semiconductors, pharmaceuticals, petrochemicals and the aviation industry.

2. Polyolefin fluorinated rubber

Polyolefin fluorinated rubber is a type of fluorinated rubber that was developed relatively early, including type 23, type 26, type 246 and nitroso fluorinated rubber, etc. These rubber varieties are produced through the fluorination reaction of polyolefins and possess excellent oil resistance, solvent resistance and chemical corrosion resistance. With the advancement of technology, the performance of polyolefin fluorinated rubber has been continuously optimized, and new varieties have been constantly emerging to meet the demands of various fields.

3. Fluorosilicone rubber

Fluorosilicone rubber is a composite of fluororubber and silicone rubber, combining the oil resistance and high-temperature resistance of fluororubber with the cold resistance and aging resistance of silicone rubber. This new variety of rubber performs exceptionally well under extreme temperature conditions. It can maintain stability in high-temperature environments as well as elasticity in low-temperature ones. Fluorosilicone rubber is widely used in aerospace, automotive electronics, medical devices and other fields.

4. Phosphorus nitrile fluoride rubber

Phosphonitrile fluoride rubber is a kind of fluororubber with a special molecular structure, and its main chain is composed of alternating phosphonitrile bonds and fluorine atoms. This new type of rubber has extremely high heat resistance and chemical corrosion resistance, and can maintain stable performance in extremely harsh environments. Phosphorus fluoride nitrile rubber is mainly used in high-end fields such as national defense and military industry, aerospace, etc.

5. New modified fluororubber

To meet the special requirements for the performance of fluororubber in different fields, researchers have also developed a variety of new modified fluororubbers. For instance, by introducing nanoparticles, functional monomers or special additives, the wear resistance, fatigue resistance, electrical conductivity or thermal conductivity and other properties of fluororubber can be significantly improved. These new types of modified fluororubbers have broad application prospects in fields such as automotive electronics, communication equipment, and medical devices.

With the advancement of technology and the continuous growth of industrial demand, new varieties of fluororubber keep emerging. These new varieties each have their own advantages in performance, providing more diverse choices for different fields. In the future, with the continuous development of materials science and engineering technology, the performance of fluororubber will be further optimized and improved, bringing more innovation and application value to all walks of life.

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