Light Yellow Granule MBT Rubber Accelerator , CAS NO 149-30-4 Chemical Accelerator
Product description
MBT , Pre-dispersed Accelerator , Light Yellow Granule , Used In Tires .
Recommendations and Applications:
MBT is used as an acid accelerator and a medium fast primary accelerator ,
a muti-function accelerator with a long flat vulcanizing period ,
impacts good physical and mechanical properties of vulcanizates.
It is a anti-scorching agent of vulcanization system absence of sulfur ,
used ad curing delay agent in CR rubber.
Alkaline accelerator like aldehyde amine and guanidine ,
thiuram and dithiocarbamate salts accelerator would activate MBT.
Its accelerative temperature is low and easily be dispersed with lower pollution.
Mainly used in the manufacture of tires , tubes , rubber soles , rubber belts and hoses etc ,
to vulcanize IR , NR , SBR , NBR , HR and EPDM , but on use in food industry.
Used as primary accelerator in NR and SBR , add 1.0~2.0 PHR MBT along with 2.0~3.0 PHR sulfur.
To vulcanize IIR, add 0.5~1.0 PHR MBT along with 0.5~1.5 PHR TMTD and 1.0~2.0 PHR sulfur.
Advantages:
MBT-80 is pre-dispersed in rubber binder, with no dust pollution ,
is environment friendly and good for worker’s health.
Masterbatch MBT-80 granules don’t stick to each other at room temperature ,
which make is easier to disperse in rubber compound , with no weight loss.
It has good compatibility with rubber ,significantly improve the mixing efficiency ,
reduce energy consumption.
Composition:
Pre-dispersed 80% 2-Mercaptobenzothiazole in a 20% elastomeric binder
Elastomeric binder can be SBR or EPDM.
Active Ingredient:
Physical Properties:
Appearance | Light yellow granule |
Mooney ML(1+4)50℃ | ≤50 |
Specific gravity | Approx.1.3 g/cm3 |
Weight loss after heating (80℃,2h) | ≤1.5% |
Dosage:
Advise the same amount with MBT powder , then increase or decrease the amount accordingly.
Geneal dosage is 0.5~2.0 PHR.
Note:
The information is correct and up to date to the best of Longhi’s knowledge.
The information and data is just for reference only, concrete information please see the actual test result.
Photograph:
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