N,N'-Diethylthiourea DETU

White or light yellow powder. Melting point 144℃. Easily soluble in ethanol and acetone, soluble in water, and insoluble in gasoline. Hygroscopic.

This product is a thiourea accelerator. This type of accelerator is generally obtained by the reaction of amine carbon disulfide. The most commonly used varieties are ethylene thiourea (NA-22) and N, N'-di-n-butyl thiourea (DBTU). )wait. This type of accelerator has low accelerating effect and poor scorch resistance, so it is rarely used for diene rubber. However, in some special cases, sulfur donor vulcanizing agents such as thiuran mother sulfide are used. , it acts as an active agent.

Thiourea accelerators have unique effects on the vulcanization of chloroprene, and can produce chloroprene vulcanized rubber with good properties such as tensile strength, hardness, and compression permanent deformation. Compared with NA-22, diethylthiourea has faster scorch and vulcanization, but has better vulcanization flatness. This product is easy to disperse and does not bloom. When the dosage is large, high-temperature and high-speed vulcanization can be performed, and it is especially suitable for continuous vulcanization of extruded products.

This product is also an accelerator for butyl rubber and a vulcanization activator for EPDM rubber. It can activate thiazole and sulfenamide accelerators in natural rubber and butylaniline, and has antioxidant effect on natural rubber, chloroprene rubber, nitrile rubber and styrene-butadiene rubber.