Basic characteristics of rubber O-ring materials
1、 Flammability of rubber Most rubbers have varying degrees of flammability. And the rubber containing halogen in the molecule, such as neoprene, fluororubber, etc., has a certain flame resistance. Therefore, chloroprene rubber and chlorosulfonated polyethylene containing chlorine atoms are difficult to burn even after removing the external flame, while fluororubber is completely self extinguishing. The flame retardancy of the compound can be improved by adding flame retardants (such as phosphate or halogen containing substances). 2、 Gas permeability (gas tightness) of rubber The gas permeability of rubber is the product of gas solubility and diffusion in rubber. The gas solubility decreases…