Accelerator MBTS
MBTS is Semi ultra Thiazole Accelerator. It is a fast curing accelerator giving vulcanisates with ultimate properties closely similar to those of MBT. The most noticable difference is the much greater scorch resistance of MBTS.
Like MBT, MBTS gives extremely good ageing properties; it is practically non-staining and similarly needs the addition of stearic acid to function at its maximum efficiency. In combination with guanidines, thiurams and dithiocarbamates, it gives rapid curing but safe mixtures, In Neoprene, it serves as an antiscorch agent. Typical usage in rubber varies from 1.0 - 1.5 phr.
Storage and Handling
Stable indefinitely under normal storage conditions. No special handling precautions are necessary. Normal precautions to avoid contact with skin and eyes should be followed. For eyes, flush with plenty of water and seek medical advice.
Chemical Composition: Dibenzthiazyl disulphide
Physical Properties
- Appearance: Cream white powder / pellets.
- Sp Gr. at 25oC: 1.54 (Typical)
| Typical Analysis |
|
Parameter
|
Limits
|
ASTM Test method
|
| Melting Point (oC) |
165 min
|
D 1519
|
| Loss at 100oC for 2 hours (%) |
0.5 max
|
D 4571
|
| Ash Content (%) |
0.4 max
|
D 4574
|
| MBT Content (%) |
1.5 max
|
D 5044
|
| Solubility |
Insoluble in water, alcohol & petroleum ether. slightly soluble in chloroform.
|
Packaging: 25 Kg. in HDPE lined Paper Bags
|
