Rubber Accelerator HEXA-80
CHEMICAL NAME: Hexamethylene tetramine
MOLECULAR FORMULA: C18H36N2S4Zn
MOLECULAR WEIGHT: 474.1
CAS NO: 136-23-2
|Appearance||White Granules||Melting Point||Sublimated when heated.|
|Mesh||80||Ash Content||0.08% max|
|Mooney Viscosity ML1+4 50℃||≤60||Volatile Content||0.3% max|
|Sulfur Element(%)||30||63µm Sieve Residue||0.3% max|
|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.
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
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 months in its original packaging.
Stored in a dry and cool place.