During the processing, storage and use of rubber or rubber products, the performance is gradually reduced due to the combination of internal and external factors (such as heat, oxygen, ozone, metal ions, ionizing radiation, light, mechanical force, etc.) The last loss of use value, a phenomenon called rubber aging.
Rubber aging phenomenon varied, for example: Health and long-term storage will harden, brittle or sticky; rubber film products (such as raincoats, rain cloth, etc.) after the sun and rain will change color, brittle and even rupture; Outdoor erection of wires, cables, due to the role of the atmosphere will be hardened, broken, and even affect the insulation; stored in the warehouse or other products will be cracked; in the laboratory hose will be hardened or sticky. In addition, some products are subject to hydrolysis or rupture or mold damage ... All these are rubber aging phenomena.
Rubber aging and iron rust, people want to aging as natural, we can only use the laws of aging to delay the aging of rubber, but can not be absolutely prevented. Common protection methods are:
Physical protection law: try to avoid the interaction of rubber and aging factors. Such as: paraffin in the rubber, rubber blend, electroplating, coating and so on.
Chemical protection: the chemical reaction to delay the rubber aging reaction continues. Such as: adding chemical antioxidant.