Preparation of rubber accelerator CBS (CZ) -80

Rubber Accelerator CBS(CZ)-80 CHEMICAL NAME:N-Cyclohexy-2-benzothiazole sulfenamideMOLECULAR FORMULA:C13H16N2S2CHEMICAL STRUCTURE:MOLECULAR WEIGHT:264.4CAS NO:95-33-0QUALITY STANDARD:Active Content(%)80CarrierSBRAppearanceGrey-White To Light Yellow GranulesMelting Point96ºC minMush100Free Amine Content0.5% maxMooney Vi

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Rubber Accelerator CBS(CZ)-80
 
CHEMICAL NAME:N-Cyclohexy-2-benzothiazole sulfenamide
MOLECULAR FORMULA:C13H16N2S2
CHEMICAL STRUCTURE:
Prepared Rubber Accelerator CBS (CZ) -80
MOLECULAR WEIGHT:264.4
CAS NO:95-33-0
QUALITY STANDARD:
Active Content(%)80CarrierSBR
AppearanceGrey-White To Light Yellow GranulesMelting Point96ºC min
Mush100Free Amine Content0.5% max
Mooney Viscosity ML1+4 50ºC≤50Ash Content(950ºC,2h)0.4% max
Sulfur Element19.0Volatile Content0.5% max
Density(g/Cm³)1.0563µm Sieve Residue0.5% max
CompositionA 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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