Cause silicon tube aging of what be the reason? World nation hin for you explain

Silicon tube general use undeserved can cause aging, and cause silicon tube aging reasons are:
1. The ozone chemical reactive oxygen species is high, the more destructive, it is to make the same molecular chain split, but to the role of ozone rubber varies by rubber deformation or not and different. As for deformation of the rubber is mainly unsaturated rubber), appear and stress direction straight crack, the so-called "ozone cracked"; In the role of the deformation of the rubber, only generate surface oxidation film and not cracked.
2. The role of water in two respects: rubber in damp air get wet in the rain or immerse in the water, and easy to damage, this is due to the rubber water-soluble matter and water to tsuen the composition such as water is group extraction) dissolve. Hydrolysis or absorb the cause. Particularly in the water soaking and exposed to the atmosphere