氟橡胶，作为高性能合成材料,在现代科学和工业中发挥着不可或缺的作用。由于其优异的耐高温性能,腐蚀,油,和良好的密封性能,广泛应用于汽车制造领域,石化产品,和航空航天.
1.FKM 和 Viton 是一样的吗?
FKM 和 Viton 是一回事.
2.Performance characteristics and advantages of FKM
FKM refers to a synthetic elastomer with a carbon atom in the main chain or side chain containing fluorine atoms.
Since the C-F bond energy is large(up to 48 kJ/mol),and the fluorine atom covalent radius is 0.72Å,equivalent to half the C-C bond length,the fluorine atom can effectively shield the C-C main chain,ensuring the stability of the C-C chain and giving it superior performance that no other rubber can match:
•Excellent resistance to high temperature:can work in the environment from-40°C to+300°C for a long time,and can withstand short-term temperatures up to 350°C.
•Outstanding resistance to chemical corrosion:has excellent resistance to most media,including hot water,酸,碱,oxidants,和有机溶剂.
•Good resistance to oil:has good stability against aliphatic,aromatic,and chlorinated hydrocarbon solvents.
•Excellent resistance to hot water and steam:the vulcanized rubber can still maintain good physical and mechanical properties after being heat aged at 175°C for 550 hours.•Excellent flame resistance and vacuum resistance:can be used normally in similar vacuum environments.
3.Application of Fluororubber
3.1 Fluororubber is widely used in fields such as aviation,航天,and automobile manufacturing.
3.2 Fluororubber has better low-temperature resistance and oil resistance,and is often used in the fields of petrochemicals and hydraulic transmission.
3.3 It has excellent chemical resistance and high-temperature resistance,suitable for environments with high temperature,高压,and strong corrosive medium.