Rubber Accelerator HEXA-80
CHEMICAL NAME: Hexamethylene tetramine
MOLECULAR FORMULA: C18H36N2S4Zn
MOLECULAR WEIGHT: 474.1
CAS NO: 136-23-2
CHEMICAL 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 50℃ | ≤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 months in its original packaging.
Stored in a dry and cool place.