Activator 73 A
- Chemical Family
- Zinc & Zinc Compounds
Activator 73 A - Multifunctional cure activators for the sulfur vulcanization of diene rubber, especially natural rubber. They can partly or totally replace conventional activators based on fatty acids (stearic acid, zinc stearate, and zinc 2-ethylhexanoate) and impart excellent reversion resistance. They can also be used as an effective physical peptizer for the mastication of natural rubber to improve processability in mixing, extrusion and molding. "LM" is designed for low shear and low temperature mixes.
Properties
- Physical Form
- Pastilles
- Solid
Product families
Applications
- Other Industrial Applications
Product Families
- Catalysts Initiators & Crosslinkers
- Performance Additives
- Processing Aids
- Catalysts Initiators & Crosslinkers
Other characteristics
- Brand
- Activator
- Functions
- Activator, Curing Agent, Peptizer
- Processing Methods
- Extrusion
- Markets
- Industrial
- Appearance
- Antique White Pastilles
- Shelf LIfe
- 24 Months
- Technology
- Elastomers
- Plastics
- Country Availability
- Brazil
- Canada
- China (Mainland)
- Mexico
- USA
- Storage and Packaging
at least 2 years under normal storage conditions.; 25 kg. PE bags
- Recommended Applications
STRUKTOL® Activator 73 A and STRUKTOL® Activator 73 LM, a formulation of selected zinc salts, are very effective activators for the sulfur vulcanization of diene rubber, especially natural rubber. STRUKTOL® Activator 73 A and STRUKTOL® Activator 73 LM can partly or totally replace conventional activators based on fatty acids, e.g., stearic acid, zinc stearate, and zinc 2-ethylhexanoate.; The following improvements are achievable by application of STRUKTOL® Activator 73 A and STRUKTOL® Activator 73 LM: 1) prolonged reversion time, 2) higher modulus, 3) less heat buildup under dynamic load, and 4) reduced compression set at elevated temperatures, 5) improved properties at high temperature cures, 6) viscosity reduction at high shear.; STRUKTOL® Activator 73 A and STRUKTOL® Activator 73 LM can be used as an effective physical peptizer for the mastication of natural rubber. It improves processability in mixing, extrusion and molding. STRUKTOL® Activator 73 LM is designed for low shear and low temperature mixes.
- Plastics and Elastomers Functions
- Activator
- Curing Agent
- Peptizer
- CLTE - Transverse
- Antique white pastilles
- Plastics and Elastomers Processing Methods
- Extrusion
Technical data
Table 1 of 1
3 rows| Characteristic | Value | Unit |
|---|---|---|
| Dropping Point | 105-117 | °C |
| Specific Gravity | 1.24 | — |
| Zinc Content | max. 20 | % |
