Rubber Accelerator CBS(CZ)-80
CHEMICAL NAME:N-Cyclohexy-2-benzothiazole sulfenamide
MOLECULAR FORMULA:C13H16N2S2
CHEMICAL STRUCTURE:
MOLECULAR WEIGHT:264.4
CAS NO:95-33-0
QUALITY STANDARD:
| Active Content(%) |
80 |
Carrier |
SBR |
| Appearance |
Grey-White To Light Yellow Granules |
Melting Point |
96ºC min |
| Mush |
100 |
Free Amine Content |
0.5% max |
| Mooney Viscosity ML1+4 50ºC |
≤50 |
Ash Content(950ºC,2h) |
0.4% max |
| Sulfur Element |
19.0 |
Volatile Content |
0.5% max |
| Density(g/Cm³) |
1.05 |
63µm Sieve Residue |
0.5% max |
| Composition |
A homogeneous mixture of dipentamethylene thiuram tetrasulphide and polymeric binder at 70/30 ratio |
Binder type can be customized. Except SBR/TPR, others binders, such as EPDM,NBR also can be available for.
APPLICATION:
Vulcanization accelerator CBS can prolong scorching time of rubber compounds, high processing safety and fast vulcanization rate.
It can be used alone in low-sulfur vulcanization, might as well can be used together with dithio- carbamates or thiurams.
Its vulcanizate has excellent properties of anti-ageing and compres- sion 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 the low-sulfur rubber compounds.
It can delay scorching and improve processing safety in thiols and thiurams rubber compounds.
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.
PACKING & STORAGE:
Net weight 25kg/PE bags lined carton; Net weight 600 kg/pallet.
Shelf-life: 12 month in its original packaging
Stored in a dry and cool place.
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