【Name】 Antioxidant RD; 2,2,4-trimethyl-1,2-dihydroquinoline polymer; 2,2,4-trimethyl-1,2-dihydroquinoline polymer; Homopolymer of 1,2-dihydro-2,2,4-trimethylquinoline; 2,2,4-trimethyl-1,2-dihydroquinoline; anti-aging agent TMQ; antioxidant RD ; Anti-aging agent 224

【English name】 Antioxidant RD; poly (1,2-dihydro-2,2,4-trimethyl-quinoline)

【Physical Properties】 Density 1.08; Melting point 72-94 ° C; Boiling point> 315 ° C; Water solubility <0.1 g / 100 mL at 23 ° C

【Properties】 Light yellow to amber powder or flakes. Non-toxic.

[Softening point] Above 74 ℃.

【Dissolution】 Insoluble in water, soluble in benzene, chloroform, acetone and carbon disulfide. Slightly soluble in petroleum hydrocarbons.

use

Mainly used as rubber antioxidant. It is suitable for natural rubber and synthetic rubber such as nitrile, styrene butadiene, ethylene propylene and neoprene. The protection against aging caused by heat and oxygen is excellent, but the protection against aging due to bending is poor. Need to be used in conjunction with antioxidant AW or p-phenylenediamine antioxidants. It is a common anti-aging agent for the manufacture of rubber products such as tires, hoses, tapes, wires, etc. Since the anti-aging agent RD has good compatibility in rubber, it will not be sprayed when the amount is up to 5 parts, so it can increase the amount of anti-aging agent and improve the anti-aging performance of the rubber. For tire treads and conveyor belts, it can be used in combination with anti-aging agent 4010NA or AW.