Basic Rubber Accelerator CBS-80

Basic Rubber Accelerator CBS-80 Cas no.95-33-0

1.Product composition:

Approx. 80 wt% N-cyclohexyl-2-benzothiazolesulphenamide (CBS/CZ)
CAS No.: 95-33-0
EINECS No.: 202-411-2
Approx. 20 wt% polymer binder and dispersing agent

2.Application:

Basic accelerator for sulphur cured diene rubbers, e.g. EPDM, NR, BR, SBR, especially for tire and antivibration applications

3.Specification:

4. DOSAGE:

For NR:primary accelerator: 0.5-1.0phr with 2.5-3.5phr sulfur; For SBR: 1.0-1.5phr combine with 0-0.2 Thiurams accelerators and 1.5-2.5phr sulfur.

5. PROPERTIES:

Vulcanization Accelerator CBS can lead to long scorching time of rubber compounds, high processing safety and fast vulcanization rate. It can be used alone in low-sulfur vulcanization, and also can be used together with dithiocarbamates or thiurams. Its vulcanizate has excellent properties of anti-ageing and compression set resistance. It can obviously shorten scorching time of rubber compounds together with dithiocarbamates and thiurams. Thioureas have obvious effect on secondary acceleration to CBS, especially in low-sulfur rubber compounds. It can delay scorching and improve processing safety in thiols and thiurams rubber compounds.