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PHYSICAL & CHEMICAL PROPERTIES OF

RUBBER  ACCELERATOR  MBTS  (DM)




A compound, usually organic, that greatly reduces the time required for vulcanization of natural and synthetic rubber; at the same time, improving  the ageing and other physical properties. The major types Include amines, guanidines, thiazoles, thiuram sulfides, and dithio-carbamates.



Chemical Name         : Dibenzothiazole  Disulfide
Molecular  Formula    : C14H8N2S4
CAS NO.                       : 120-78-5

Specifications:

Item                                               Granule
Appearance Gray-White (granule)
Initial  Melting  Point, °c  > 170.0
Loss on Drying,%   <  0.30
Ash ,%,< 0.30
Granule  Diameter,mm 1.50

Properties:

Gray-white (granule)  with a little bittle bitter, no poison,  The density is 1.45-1.54  Soluble in chloroform, partly soluble in benzene, ethanol, CCl 4,  insoluble in gasoline, water and ethyl acetate.  Good storage stability.


Applications:

Given flat, moderately fast cures in  NR  and  SR.  Also used in a wide range of general  purpose  rubber.  Non-staining and non-discolouring in “white” socks;  used as a plasticizer and retarder in  polychloroethylene  rubber.  Secondary  acceleration is usually required for synthetic polymers,  Better scorch safety than  WILLING  MBT.

 


 

 

 

 
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