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The rubber pad should be stored in a cool and airtight place, so it is not easy to be exposed to the sun. What is the reason for the embrittlement of the insulating rubber sheet? The manufacturer of the insulating rubber pad will give you a detailed explanation. The effect of moisture has two levels: when the vulcanized rubber is drenched in wet gas or soaked in water, it is simply destroyed because the water-soluble chemicals and cold water functional groups in the vulcanized rubber are extracted and dissolved by water. It is caused by hydrolysis reaction or digestion and absorption.
Especially under the replacement effect of water immersion and air exposure, the destruction of vulcanized rubber will be accelerated. However, under certain conditions, moisture can not destroy the vulcanized rubber, and even has the effect of delaying embrittlement. Reactive oxygen species. The organic chemical specificity of reactive oxygen species is much higher than that of oxygen species, and its destructiveness is higher.
However, the effect of reactive oxygen species on vulcanized rubber varies with the deformation of vulcanized rubber. When vulcanized rubber (mainly unsaturated fat vulcanized rubber) is used for deformation, cracks perpendicular to the effect direction of in-situ stress occur, which means "active oxygen cracking"; When applied to deformed vulcanized rubber, only the surface layer is converted into air oxide film without cracking. In situ stress of mechanical equipment.
Under the effect of repeated in-situ stress of mechanical equipment, the molecular structure chain of vulcanized rubber will split, the component will disperse, the air oxidation chain reaction will be caused, and the organic chemical process will be formed. Mechanical equipment cracking molecular structure chain and mechanical equipment active air oxidation process. Which one will prevail depends on the standard of its address. In addition, under the effect of in-situ stress, it can easily cause active oxygen cracking.