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CR has good heat resistance, light resistance, antioxidant and other properties, in order to further improve its heat resistance, light, oxygen aging performance, still need to choose the appropriate antioxidant. Generally effective antioxidants for NR are effective for CR, and the anti-aging properties of CR are divided into two kinds: general aging resistance and ozonation resistance. (1) general aging resistance according to the antioxidant in the vulcanization of whether the discoloration is divided into two types of pollution and non-pollution. 1) pollution-type antioxidant: the use of pollution-type antioxidant after the easy discoloration of rubber products, generally applicable to the black or dark products, commonly used antioxidant A and antioxidant D, the dosage of 2. 2) non-pollution-type antioxidant: applicable to light-coloured products, the dosage of 2, generally for the phenolic class, such as antioxidant 246 or 2246.
(2) Ozone aging resistance antioxidant 4010 and antioxidant A and D and has good resistance to ozone aging ability.
(2) Ozone aging resistance antioxidant 4010 and antioxidant A and D and has good resistance to ozone aging ability.
