RUBBER ANTIOXIDANT MB(MBI)
CHEMICAL NAME: 2-Mercapto benzimidazole
MOLECULAR FORMULA: C7H6N2S
MOLECULAR WEIGHT:150.19
QUALITY STANDARD:
| ITEM |
POWDER |
OILED POWDER |
GRANULE |
| Appearance |
White powder/granule |
| Initial M.P.ºC≥ |
290 |
290 |
290 |
| Ash Content %≤ |
0.4 |
0.4 |
0.4 |
| Loss on drying %≤ |
0.4 |
0.4 |
0.4 |
| Comparatively density(g/cm3) |
1.42-1.43 |
1.42-1.43 |
1.42-1.43 |
| Assay Content %≥ |
96 |
95 |
95 |
| Residus(150μm)% ≤ |
0.1 |
0.1 |
\ |
| Oil content % |
\ |
1.0-2.0 |
\ |
| Strength of grain(N) |
\ |
\ |
0.6-2.5 |
PROPERTIES:
White powder. Odorless but with bitter taste. Density is 1.42.Soluble in alcohol, acetone, ethyl acetate, slightly soluble in petroleum ether, CH2Cl2. Insoluble in CCI4, benzene and water.Good stabilization storage ability.
APPLICATION:
This product is used as an antioxidant for natural rubber, diene synthetic rubber and latex. It can also be used for polyethylene. It has protective effects against oxygen, weather aging and static aging, etc. It can also effectively prevent copper damage and overcome the adverse effects caused by excessive sulfur during crystal vulcanization. This product can be used alone or with other anti-aging agents (such as DNP, AP and other non-polluting anti-aging agents) to obtain obvious synergistic effects. This product is easily dispersed in rubber, does not change color in sunlight, and is slightly polluting. When used alone, the dosage is generally 1-1.5 phrs. When the dosage exceeds 2 phrs, the phenomenon of clear frost will occur. The amount used in latex foam rubber is 0.5 phrs. Because this crystal has a bitter taste, it is not suitable for food contact rubber products.
PACKAGE:
Packed in Kraft paper bags of 25kgs net each with P.E. liner inside, or jumbo bags.
STORAGE VALIDITY: 12 months.
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