Anti-aging agent TPPD

　　Chemical name: N-(p-toluenesulfonamide)-N'-phenyl-p-phenylenediamine

　　Molecular formula: C19H18N2O2S

　　Molecular weight: 338.4

　　Appearance (visual inspection): gray powder or granules

　　Melting point: ℃, ≥ 135

　　Ash: %, ≤0.5

　　Heating loss: %0.3

　　Properties: Gray powder, non-toxic, relative density 1.32, melting point no less than 135°C, soluble in acetone, slightly soluble in dichloroethane, benzene, hot water and hot alkali solution, insoluble in gasoline and water, stable storage.

　　Uses: Neoprene, natural rubber, butadiene rubber, styrene butadiene rubber and its latex anti-aging agent, good protection against ozone and oxygen aging, also can inhibit copper damage and manganese damage, especially suitable for the protection of chloroprene rubber aging The destructive effect of chlorine released during the period on the fiber material. This product is easy to disperse. It can be added directly to rubber, or it can be made into an aqueous dispersion and added to latex. When this product is used in neoprene rubber, if it is used together with the antioxidant ODA, it has the best heat resistance. It can also reduce the plasticity of the unvulcanized neoprene rubber and reduce the shrinkage rate of the pressure delay, thus helping to adjust the size of the semi-finished product. This product is mainly used to manufacture adhesive tape, electrical insulation products and light-colored industrial products. The general dosage is 1-2 parts in neoprene.

　　Packing: Kraft paper bag, net weight 20 kg.