1. The 3 products with the largest output of antioxidants

The output of antioxidant products in 2016 reached 375,000 tons, accounting for 34% of the total output of rubber additives, ranking first among all rubber additives. Among all the products of antioxidants, the output of antioxidants TMQ, 6PPD and IPPD is the largest. Among them, TMQ, 6PPD and IPPD account for 80% of the antioxidant products, which are the mainstream varieties of antioxidants.

It is a kind of general-purpose antioxidant with excellent anti-aging effect caused by heat and oxygen. It is widely used in various tires, hoses, tapes, rubber shoes, tape products and latex products, especially for the production of all-steel and semi-steel radial tires. , which is one of the largest varieties of antioxidants in the world in terms of output and consumption. Anti-aging agent TMQ is used in combination with p-phenylenediamine anti-aging agent 6PPD and protective wax to form complementary advantages and form a typical protective system for rubber products. It is the most important antioxidant formula in the processing of radial tires. It can inhibit the harsh conditions of oxidation, thermal aging and weather aging, but has poor protection against flexural cracks. The main component of antioxidant TMQ is a polymer of 2,2,4-trimethyl-1,2-dihydroquinoline, and the content of dimer has the most significant effect on antioxidant performance.

Anti-aging agent 6PPD (4020)

Antiozonant and antioxidant for natural rubber, cis-butadiene rubber, isoprene rubber, styrene-butadiene rubber, nitrile rubber, neoprene, excellent protection against fatigue and ozone cracking, efficacy between 4010 and 4010NA , If used in combination with wax, it can increase the static protective effect, and also has a good protective effect on heat, oxygen, copper and manganese. When the temperature exceeds 35~40℃, it will slowly clump together. When the dosage exceeds 2.5 parts, it will slightly soften the rubber compound. If it is less than 2.5 parts, it will have no effect on the mechanical properties of the vulcanizate. If it is higher than 2.5 parts, the tensile strength and elongation will decrease. It is especially suitable for heat-resistant rubber compound when used in combination with anti-aging agent MB.

Anti-aging agent IPPD (4010NA)

A general-purpose antioxidant for natural rubber and synthetic rubber latex. Excellent protection against ozone cracking and flexural cracking; it is also an excellent protective agent for heat, oxygen, light and general aging. It can also inhibit the aging effect of variable-valent metal ions, and its protective performance is more comprehensive than that of 4010 (CPPD). It will change color under sunlight, but it will not affect the performance. It has a low melting point and is easy to disperse. The solubility in rubber is higher than that of 4010, and the blooming property is small, so the dosage can be increased. It is often used under conditions of high dynamic and static stress. product. This product can be used alone, or combined with anti-aging agent AW or wax to reduce the dosage and improve the protective effect. Especially in combination with wax, it can improve the level of anti-static ozone cracking performance.