Knowde Enhanced TDS
Identification & Functionality
- Chemical Name
- Plastics & Elastomers Functions
- Technologies
- Chemical Composition
2,2' Dibenzamido diphenyl disulfide blended with a synergistic activator and an inert carrier
Features & Benefits
- Materials Features
Applications & Uses
- Markets
- Applications
- Compatible Polymers & Resins
- Plastics & Elastomers End Uses
- Recommended Applications
Pepton® 44 is recommended to increase the efficiency of open or internal mixer mastication of natural rubber and unsaturated synthetic elastomers, where reduction of viscosity is desirable.
- Recommended Dosage
- 0.2 - 0.5 phr for natural rubber
- 1.5 - 3.0 phr for synthetic elastomers
Properties
- Physical Form
- Appearance
- fine light-grey to blue/green powder
- Odor
- slight, characteristic
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Specific gravity | approx. 1.8 | — | — |
| Ash Content | 43 | % wt. | — |
| Acetone insolubles | max. 51 | % | — |
| Moisture Content | max. 1 | % | — |
Technical Details & Test Data
- Temperature Range
Effective in mastication at 70°C and above, best performance is obtained at 150 - 160 °C.
- Technical Behaviour
Pepton® 44 catalytically promotes molecular chain scission during mastication, thereby reducing mastication time and power consumption, giving lower production costs and increased production capacity. The peptising action of Pepton® 44 is inhibited by sulfur and the viscosity of compounded stocks is therefore stable on storage. Furnace blacks, mineral fillers, zinc oxide and other materials likely to be present in first stage mixing operations or during the early part of high-speed single-stage mixing have little or no effect on performance of Pepton® 44. Antioxidants generally retard the peptising action and they should be added later in the cycle when the product is used in direct compounding. The effects on rate and state of cure and on the properties of vulcanized compounds are negligible.
Packaging & Availability
- Packaging Type
- Packaging
Multi-ply paper bags. Net weight 50 lb, maximum 2000 lb per pallet.
Storage & Handling
- Storage Stability
Good under cool dry conditions. However Pepton® 44 should be used within four years of certification. Some compaction may occur in storage. This is normal and will not affect the inherent performance of the product. It is recommended that the product is used within 48 months of certification