|Accelerator Chemical Name|
|Other Name||2-Imidazolidinethione; Imidazolidine-2-thione; Ethylenethiourea; 96-45-7; ETHYLENE THIOUREA; 2-Mercaptoimidazoline|
White to Light Green Crystal
Initial M.P. ℃≥
Loss on Drying %≤
Residues(150μm) % ≤
Oil Content %
Nature: white crystalline powder, bitter taste. Aqueous solution in alkali, insoluble in cold water, ethanol, acetone, insoluble in gasoline and toluene. Combustible, combustion temperature 196 ° C, auto-ignition temperature 421 ° C. Dust-air mixture is at risk of explosion. Moderately toxic. Storage is stable, but it is best to place it in a dry place at low temperature.
Function: various types of neoprene, chlorosulfonated polyethylene rubber, chloroether rubber, acrylate rubber accelerator. It is suitable for metal oxide vulcanization, especially magnesium oxide and zinc oxide as vulcanizing agents. Safe operation, not easy to burn. At the normal vulcanization temperature, the vulcanization rate is faster. With the increase of the dosage, the vulcanization rate can still be improved, but the anti-scorch performance is decreased. The use of the accelerator DM can improve the scorch resistance. High, less compression deformation, good elasticity and heat resistance. Sulfur has no direct influence on the vulcanization, but has a tendency to lower the crystallization, increase the tensile stress, and deteriorate the aging resistance. This product is especially suitable for W type and general purpose neoprene. For W-type chloroprene rubber, water-resistant rubber can be produced by using lead oxide or lead sulphide as vulcanizing agent, but the storage stability is poor; salicylic acid has its activation effect and can improve the setting of vulcanizing agent. Stress; stearic acid has the effect of retarding vulcanization. When used in general-purpose GN type neoprene, it has better operational safety and storage stability. It is easy to disperse in the rubber, no pollution, no discoloration.