Amine antioxidants (aldehyde amine antioxidants, ketamine antioxidants, diaryl secondary amines, p-phenylenediamine), phenolic antioxidants (divided into monophenols, biphenols, polyphenols), heterocyclic antioxidants, phosphite antioxidants, other types of antioxidants (long-lasting antioxidants, nickel salts, waxes).

Aldehyde amine type antioxidants. It is the reaction product of aliphatic aldehyde and primary aromatic amine, which is the oldest category of antioxidant. The aldehyde amine antioxidant is effective for aging caused by heat, oxygen and light, and has good dispersion in the adhesive material, but it has pollution and is not suitable for light-colored products. There are: antioxidants AH and AP.

Ketamine antioxidant. Has the best antioxidant effect. There are: antioxidant RD, antioxidant AW, antioxidant BLE.

Diaryl secondary amine antioxidants. This is one of the oldest varieties, and still ranks first in all antioxidants, including: antioxidant D (d), antioxidant A (a), antioxidant DNP.

P-phenylenediamine antioxidants. Including the most important class of antioxidants, but also a very promising class of antioxidants. There are: antioxidant 4010NA/IPPD, antioxidant 4020/6PPD, antioxidant 4010/CPPD, antioxidant ODA, antioxidant DPPD, antioxidant 7PPD, antioxidant 8PPD, antioxidant 3100/DTPD, antioxidant 445.

Phenolic antioxidants and other antioxidants are not as good protection as amine antioxidants, only with outstanding non-polluting properties, there are: antioxidant 2246, antioxidant BHT (264), antioxidant SP, antioxidant BHA.

Nickel salt class antioxidant (containing sulfur type), there are: antioxidant NDBC, antioxidant NDIBC, antioxidant NDMC. are green powder, the best performance of ozone protection, thermal oxygen aging, fatigue aging also has a protective effect.

Wax antioxidant, when its amount in the rubber exceeds the solubility in the rubber, after vulcanization that migrates to the surface, forming a protective film, can effectively prevent static ozone cracking of products, there are: paraffin wax, microcrystalline wax.

Newly developed antioxidants. Tributyl urea derivatives, lactam derivatives, non-flexible (anti-flexible) LAS (LAS-P) p-styrene-substituted diphenylamine or 4,4'-styrene-substituted diphenylamine, diisopropylphenyl-substituted DPPD (DP), sulfated triazine derivatives, 6-QDI, Durazone37 and other types.

Heterocyclic antioxidants (sulfur-containing type), there are: antioxidant MB, antioxidant MMB, antioxidant MBZ, antioxidant MMBZ. antioxidant MB is an important variety of non-polluting antioxidants.

Phosphite ester antioxidant, there are: antioxidant TNP. phosphite ester hydroperoxide decomposition agent and free radical trapping agent, in the polymer system as an auxiliary antioxidant, mostly used with hindered phenol, rarely used alone.

Long-lasting antioxidant. When rubber products are used in high temperature and vacuum environment, the antioxidant in rubber will be reduced or lose the protective effect because of volatilization. Another example is that rubber products used under contact with liquid media for a long time will reduce or lose protective effect faster because of extraction. The non-volatile or low-volatile, non-extraction or low-extraction type antioxidants developed for this purpose are: nitrosodiphenylamine (NDPA), allyl substituted phenol (TAP), etc. according to the currently disclosed products.