RUBBER ACCELERATOR HEXA-80
CHEMICAL NAME:Hexamethylene tetramine
MOLECULAR FORMULA:C18H36N2S4Zn
MOLECULAR WEIGHT: 474.1
CAS NO.:136-23-2
MOLECULAR STRUCTURE:
SPECIFICATIONS:
Active Content(%) |
80 |
Carrier |
SBR/TPR |
Appearance |
White Granules |
Melting Point |
Sublimated when heated. |
Mesh |
80 |
Ash Content |
0.08% max |
Mooney Viscosity ML1+4 50ºC |
≤60 |
Volatile Content |
0.3% max |
Sulfur Element(%) |
30 |
63µm Sieve Residue |
0.3% max |
Density(g/Cm³) |
1.13 |
|
|
Composition |
A homegeneous mixture of Hexamethylene tetramine and polymeric binder at 80/20 ratio |
Binder type can be customized. Except SBR/TPR, others binders, such as EPDM,NBR also can be available for.
APPLICATION:
HEXA-80 is a weak alkaline accelerator for slow vulcanization.
Vulcanization reaction started as soon as HEXA was added in, with a slow rate and a high degree of cross-linking of the vulcanizate. Thiols,sulfenamides, thiurams and dithiocarbamates are activators and secondary accelerators to HEXA contained rubber compounds. As a formaldehyde donor, it is especially suitable to adhesion between rubber and metal or steel cord with resorcinol. It can not lead to blooming appearance normally
DOSAGE:
0.6-0.8phr with 3-4phr sulfur as a main accelerator of thick-walled products;
1.3-1.6phr with 2.5-3.2phr Resorcinol-80 in adhesion system as a formaldehyde donor
PACKING & STORAGE:
Net weight 25kg/PE bags lined carton; Net weight 600 kg/pallet.
Shelf-life: 12 month in its original packaging
Stored in a dry and cool place.