Dithiocarbamate Rubber Accelerators
By DALIAN RICHON CHEM | Posted: 8/26 , 2021
Dalian Richon glad to introduce Dithiocarbamate accelerators are ultra-overspeed accelerators. It has low active temperature, fast vulcanation speed, and high crosslinking degree. Suitable for thin products, room temperature sulfide products, rubber dairy products, butyl rubber and sulfurized products of EPDM rubber.
Among them, ammonium dithiamate, sodium, potassium as water-soluble accelerators, mostly used as sulfide accelerators for glue dairy products; zinc dithiamdine promotion activity is lower than ammonium salt, has certain operating safety in dry glue, thiazole, autumn um, potassium promoters in thithiamate, sodium, and latex, which is also the most commonly used varieties.
Dalian Richon can provide dithiocarbamate accelerators include: ZDMC(PZ), ZDBC(BZ), ZDEC(ZDC,EZ), ZEPC(PX), ZBEC(DBZ), TDEC, CDMC(CDD). The following is a detailed introduction to the product we can provide.
1.ZDMC(PZ)
ZDMC chemical name is zinc dimethyl dithiocarbamate, white or light yellow powder, specific gravity is 1.66, slightly soluble in ethanol and carbon tetracloride at 25℃. It easy to disperse in rubber, suitable for light and bright color products, mainly used for latex products, can also be used for self-sulfur glue, adhesive, cold sulfur products, food rubber products.
2.ZDBC(BZ)
ZDBC chemical name is dibutyl dithiocarbamate zinc, white powder, soluble in carbon disulfide, benzene, chloroform, ethanol, ether, insoluble in water and dilute alkali, stable storage. It is a super accelerator for natural rubber, synthetic rubber and latex, the latex which containing ZDBC can be used for a week without early vulcanization phenomenon. It has the function of antiaging agent in the mixing rubber, can improve the aging resistance of vulcanized rubber, no color, no pollution, and easy to disperse. It is often used for low temperature vulcanized mortar, vulcanizing faster than EZ and PZ.
ZDEC chemical name is zinc diethyl dithiocarbamate, white powder, soluble in 1% NaOH solution, carbon disulfide, benzene, chloroform, insoluble in gasoline. ZDEC is used as a superaccelerator for NR, synthetic rubber and latex, especially for butyl rubber, EPDM and latex, non-toxic, inodorous, it can be used as white or brilliant color and transparent rubber manufactures.
4.ZEPC(PX)
ZEPC chemical name is zinc ethyl phenl dithiocarbamate, white powder, odorless and non-toxic, soluble in hot chloroform, hot benzene, slightly soluble in gasoline, benzene, toluene, hot alcohol, insoluble in acetone, carbon tetracloride, ethanol and water. It is a super accelerator which is safer to operate, especially suitable for latex vulcanization. It can be used to make impregnated latex products in contact with food and transparent and brilliant products, medical supplies, latex model products, impregnated products, latex sponge, tape, self-sulfur glue and so on. It can also be used as activator of thiazole accelerators.
ZBEC chemical name is zinc dibenzyl dithiocarbamate, white powder, soluble in ethanol, benzene and chloroform, insoluble in water. ZBEC is a new type of environmental protection secondary thiocarbamate vulcanization accelerator. It does not produce carcinogenic nitrosamine in the use process, the vulcanization activity temperature is low, the operation is safer, has the longest anti-coke performance, can be used to replace PZ, EZ, ZDBC, TMTM, etc.
6.TDEC
TDEC chemical name is diethyl thio-carbamate tellurium, yellow powder, relative density of 1.48, soluble in chloroform, benzene and carbon disulfide, slightly soluble in alcohol and gasoline, insoluble in water. It is used as a natural rubber and synthetic rubber overspeed vulcanization accelerator, generally with thiazole, secondary sulfonamide accelerator, mainly used in the manufacture of inner tube, cable insulation layer, hose, etc.
7.CDMC(CDD)
CDMC chemical name is dimethyldithiocarbamate, it has a slight rubber staining property and is suitable for NR, SBR, NBR, IIR and EPDM systems, especially for SBR, IIR and EPDM systems. The efficiency of promoting vulcanization is better than TT, PX, etc.
Author: WYY – Dalian Richon Chem Co., Ltd.
Dated: 2021-08-26