Specificatin
Chemical Analysis:
Product Name
Rubber Accelerator MBT (M)
Chemical Name:
2-mercaptobenzothiazole
CAS No.:
149-30-4
Molecular Formula:
C7H5NS2
Molecular Weight:
167.26
Product Information:
***Specification
|
Appearance (visual inspection): |
Light yellow powder |
Assay content% œ |
95 |
|
Initial M.P.¥: |
170.0 |
Loss on drying %›: |
0.50 |
|
Ash content %›: |
0.50 |
Residues(150um)%›: |
0.10 |
|
Compacted bulk density (kg/m3) |
560-600 |
Bulk density (kg/cm3): |
400-440 |
|
Density at 25¥ (g/cm3) |
1.42-1.52 |
|
|
***Typical Properties
It is yellow powder with little osmyl and taste bitter. The density is 1.42-1.52.it is soluble in ethyl acetate, ethanol, solution of NaOH and Na2CO3, insoluble in benzene, water and gasoline.Lower explosion limit is 21g/m3.
***Recommended Applications
In NR compounds, MBT based vulcanization systems exhibit less reversion upon overcure than other systems. Vulcanizate obtained with MBT tend to have a relatively low modulus but very good aging properties.
To achieve a faster cure and a higher modulus. MBT can be boosted by the use of secondary accelerators, such as
ZBEC, ZDEC, TMTD or DPG.
For the vulcanization of EPDM or IIR rubbers, MBT is a well established component of many existing vulcanization systems. MBT also finds application in latex form cure systems. It is non-staining and non-discoloring.
***Handling and Storage recommendations
Store MBT in a cool, dry, well-ventilated area, avoiding exposure of the packaged product to direct sunlight. Usually the shelf time is 24 months while the recommend use of time is within 12 months.