Advantages and disadvantages of luoying low-temperature resistant rubber joints

Advantages and disadvantages of luoying low-temperature resistant rubber joints
The low temperature resistant rubber joints we produce can still maintain good ductility and high elasticity to ensure normal operation of various pipeline compensation, vibration and noise reduction without being affected by low temperature. The rubber joints are made of silicone rubber and fluorine rubber with good low-temperature resistance. Basically, there will be no cracking and deformation caused by low temperature, which ensures the safe and efficient operation of various pipelines.
Low temperature resistant silicone rubber refers to the silicone rubber with working temperature of -100℃. Its mechanism is different from room temperature silicone rubber. It originates from the oxygen chain. The introduction of phenyl in the side group of polysiloxane will greatly reduce the crystallization temperature of the polymer due to the destruction of the regularity of the dimethylsiloxane structure, and the working temperature of the molded silicone can be extended to -100℃.
 
Advantages and disadvantages:
1 . Advantages: small continuous compression deformation, wide range of use temperature, resistance to oxidation, weathering, shock, moisture and good electrical insulation properties, low temperature resistance, ablation resistance and radiation resistance, etc.
2 . Disadvantages: With the increase of phenyl content, the rigidity of silicone rubber molecular chain gradually increases, the low temperature resistance of silicone rubber gradually decreases, but with the increase of phenyl content, the flame retardancy and irradiation resistance of vulcanized rubber has decreased to improve lighting.
Low temperature resistant fluoroelastomer is resistant to low temperature -40 degrees, it is a copolymer of tetrafluoroethylene (TFE) and perfluoroalkyl vinyl ether (PAVE). The polymeric monomer PAVE is added to the polymer chain, and the amount is usually 20% to 40%, depending on the structure of the polymeric monomer.