Introduction
Chemical Name: Tetrabenzylthiuram disulfide
Abbreviation: TBzTD / TBZTD
CAS No.: 10591-85-2
Molecular Formula: C₃₀H₂₈S₄N₂
Molecular Weight: 544.83
Rubber vulcanization accelerator TBzTD can replace thiuram accelerators such as TMTD, mainly because thiuram accelerators are prone to produce carcinogenic nitrosamines, while diphenylnitrosamine is non-carcinogenic. It can be used as a fast primary accelerator or secondary accelerator in NR, SBR, EPDM, and NBR systems. It is safer to use than TMTD and has a longer anti-scorch time. It is sometimes used as a vulcanization inhibitor for PVC rubber.
Specification
| Item | Powder | Oiled powder | Granule |
| Appearance | Light yellow powder(granule) | ||
| Initial M.P. οC ≥ | 124 | 124 | 124 |
| Loss on drying % ≤ | 0.3 | 0.5 | 0.5 |
| Ash % ≤ | 0.3 | 0.5 | 0.5 |
| Residues on 150μm sieve, % ≤ | 0.1 | 0.1 | -- |
| Additive, % | -- | 1.0-2.0 | -- |
| Granule Diameter, mm | -- | -- | 1.5 |
Properties
This product is light yellow or off-white powder with a relative density of 1.33, soluble in benzene, Trichloromethane, soluble in ethanol, insoluble in water. This product is odorless, non-hygroscopic and stable in storage.
TBzTD is a safe secondary amine-based accelerator, non-polluting, non-discoloring, non-carcinogenic, an environmentally friendly accelerator, mainly used to replace the thiuram-type auxiliary TMTD , because the presence of nitrosamines is harmful. According to the published literature, N-nitrosodibenzylamine is not carcinogenic. In the application of NR, SBR and NBR, TBzTD can be used as the main accelerator or auxiliary accelerator for rapid vulcanization. It can be used as an inhibitor in modified CR with ETU (ethylenethiourea (2-thiol imidazoline)). Compared with TMTD, TBzTD has longer scorch time and better scorch resistance.
Application
- Automobile tires and tire components
- Rubber hoses
- Conveyor belts
- Rubber seals and gaskets
- Industrial rubber products
- Cables and wire insulation
- Heat-resistant rubber products
- NR, SBR, NBR and EPDM rubber compounds
Packaging
25kg plastic woven bag, paper with plastic film bag, kraft paper bag.
Storage
The product should be stored in the dry and cooling place with good ventilation, avoid the packaged product to direct sunlight. The product with pallet should not be stacked. Stacking of palletized material or temperature of above 35οC can cause unusual compacted product. The validity is 2 years.
FAQ
1. Is TBzTD a replacement for TMTD?
Yes. TBzTD can be used as an alternative to TMTD, especially in applications requiring lower nitrosamine formation and better processing safety.
2. Can TBzTD be used with other accelerators?
Yes. TBzTD can be used together with sulfenamide, thiazole and other accelerators to achieve better curing performance.
3. Does TBzTD have good scorch safety?
Yes. TBzTD provides better scorch resistance compared with traditional thiuram accelerators, helping improve processing safety.
4. What industries use TBzTD?
TBzTD is mainly used in tire manufacturing, automotive rubber parts, hoses, seals, belts and other industrial rubber products.
5. Can you provide samples and technical documents?
Yes. We can provide samples, TDS, MSDS, COA and other export documents according to customer requirements.
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