Rubber Accelerator HEXA-80


CHEMICAL NAME: Hexamethylene tetramine
MOLECULAR FORMULA: C18H36N2S4Zn
MOLECULAR WEIGHT: 474.1
CAS NO: 136-23-2
CHEMICAL STRUCTURE:
Rubber-Accelerator-HEXA-80-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.