RUBBER ACCELERATOR

THIURAMS

Accelerator TMTD(TMT,TT)

Chemical name:Tetramethyl

Thiuram Disulfide

CAS No.: 137-26-8

Specification:

Appearance:White or greyish powder or pellet

Initial MP :140.0 ℃ min

Sieved residue(100mesh) :0 max

Loss on heating :0.50% max

Ash :0.40% max

Application:Fast-curing ultra-accelerator for NBR, EPDM &most other polymers. May be used alone or with thiazoles.

Vulcanization with TMTD with little or no sulfur has excellent properties.

THIAZOLES

Accelerator M(MBT) Chemical name: 2-Mercaptobenzothiazole CAS No.: 149-30-4	Specification: Appearance: yellowish powder or pellet Initial MP :171.0℃ min Sieved residue(100mesh) :0.1%max Loss on heating :0.40% max Ash :0.30% max Application: Fast-curing accelerator for most polymers. May be used with thiuram, dithiocarbamate or guanidine accelerators
Accelerator DM(MBTS) Chemical name: 2,2’- Dibenzothiazyl Disulfide or Dibenzothiazole Disulfide CAS No.: 120-78-5	Specification: Appearance:White or yellowish powder Initial MP :165.0 ℃min Sieved residue(100mesh) :0.1% max Loss on heating :0.40% max Ash :0.50% max Application:similar performance to MBT, scorch resistance may be much greater. May be used together with thiurams, dithiocarbamates and guanidines accelerator.
Accelerator MZ(ZMBT) Chemical name: Zinc 2-mercaptobenzothiazole CAS No.: 155-04-4	Specification: Appearance: yellowish powder Zinc content:15.0-18.0 Free MBT:2.0%max. Heating Loss: 0.30%max. Sieve residue(100mesh): 0.10%max. Application: Primarily used in latex rubber, usually in combination with ZDMC and ZDEC..performance is similar to MBT with slight scorh improvement.

SULFENAMIDES

Accelerator CZ(CBS) Chemical name:N-Cyclohexyl- 2-Benzothiazyl Sulphenamide CAS No.: 95-33-0	Specification Appearance:White-greyish to yellowish powder Initial MP :98.0 ℃ min Sieved residue(100mesh):0.05% max Loss on heating :0.30% max Ash:0.30% max Application: Delayed-action accelerator, provide good scorch safety, used in sulfur cruing elastomer. Generally used with a secondary accelerator.
Accelerator DZ(DCBS) Chemical name:N,N-Dicyclohexyl- 2-Benzothiazyl Sulphenamide CAS No.: 4979-32-2	Specification Appearance:White-greyish to yellowish powder Initial MP :141.0 ℃ min Loss on heating :0.40% max Ash :0.30% max Application: Provides longer scorch and cure time. More often used in steel skim compounds for improved adhesion.
Accelerator NOBS(MBS,MOR) Chemical name:N-Oxydiethylene- 2-Benzothiazyl Sulphenamide CAS No.: 102-77-2	Specification Appearance:Yellowish or orang yellow granular Initial MP :80.0 ℃ min Loss on heating :0.50% max Ash :0.30% max Application: Medium-fast curing accelerators, provides etxtended and long scorch safety, May be used in thick extrusions.
Accelerator NS(TBBS) Chemical name:N-Tertiary Butyl- 2-Benzothiazyl Sulfenamide CAS No.:95-31-8	Specification: Appearance:Yellowish to brownish powder or fine pellet Initial MP :103.0 ℃min Loss on heating :0.50% max Ash :0.50% max Application:Fast curing accelerators, Normally used alone or with small quantities with Ultra accelerators. May be used to replace MBTS/DPG curing system.

GUANIDINES

Accelerator D(DPG)

Chemical name:

Diphenyl Guanidine

CAS No.: 102-06-07

Specification

Appearance:White to greyish powder

Initial MP :144.0 ℃ min

Sieved residue(100mesh) :0 max

Loss on heating :0.30% max

Ash :0.40% max

Application:Secondary accelerator with thiazoles and sulfennamides in NR and SBR compounds.

Dithiocarbramates

Accelerator BZ（ZDBC） Chemical name: Zinc Dibutyldithiocarbamate CAS No.: 136-23-2	Specification Appearance:White to greyish powder Zinc content:12.5-15.5% Initial MP :103.0 ℃ min Sieve residue(100mesh) :0 .50max Loss on heating :0.30% max Ash :0.40% max Application: Ultra accelerator in NR,SR and Latex.
Accelerator EZ（ZDEC） Chemical name: Zinc Diethyldithiocarbamate CAS No.: 14324-55-1	Specification Appearance:White to greyish powder Initial MP :172.0 ℃ min Sieve residue(100mesh) :0 .10%max Loss on heating :0.50% max Ash :17-20% max Application: Fast-curing primary or secondary accelrator, also used in both natural and synthetic latices.