Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Plastics & Elastomers Functions
- Empirical Formula
- C11H14N2S2
- Technologies
- Structural Formula
Features & Benefits
- Materials Features
Applications & Uses
- Applications
- Compatible Polymers & Resins
- Plastics & Elastomers End Uses
- Dosing
In case of a sulfur vulcanization of natural rubber, Sulfenax® TBBS is used in amount of 0,5 to1,6 phr. When using it in compounds with polybutadienestyrene rubber, the dosing is within 1,0 to 2,5 phr. In the semi-EV and EV vulcanization systems the dosing is 2,0 to 5,0 phr. In such instances, sulfur in amount of 0,3 to 1,0 phr or a sulfur donor, including their combinations, serve as vulcanization agents.
- Application
Sulfenax® TBBS is used in rubber industry in processing of natural and synthetic rubber in rubber compounds as a fast accelerator of vulcanization with delayed action. It provides good physical and mechanical properties, high crosslinking eciency and good modulus. Generally it is used as accelerator of vulcanization of rubber materials with unsaturated double bonds (e.g. polyisoprene, polybutadiene, polybutadienestyrene, polyethylenepropylene and polyacrylonitrile rubber, etc.) alone or in combination with secondary accelerators (mainly guanidines, thiurams, dithiocarbamates). It has a higher processing safety when compared with Sulfenax® CBS.
It is used mainly in rubber compounds for production of tires, less in production of technical rubber. In the rubber compounds for production of tires Sulfenax® TBBS is used alone or in combination with secondary accelerators (e.g. diphenylguanidine, tetramethylthiuram disulphide, and so on). Sulfur acts as a vulcanization agent. In the non-tire sector it is used for production of conveyor belts, hoses and other thick-wall products, but to a lower extent as with Sulfenax® CBS. e rubber, processed with using of Sulfenax® TBBS, has good physical and mechanical properties. In order to reach an increased resistance against heat aging, it can be applied in semi-EV and EV vulcanization systems with a lower sulfur dosing or when using sulfur donors. As no carcinogenic nitrosamines are formed when using Sulfenax® TBBS, when combined with retarders of vulcanization it can replace the morpholine-based sulphonamide accelerators.
Properties
- Soluble in
- Benzene, Ethanol, Chloroform, Ethyl Acetate
- Processing Information (Extrusion Coating)
| Value | Units | Test Method / Conditions | |
| Active Substance Content | min. 95.5 | % | — |
| Density (20°C) | 1280 | kg/m³ | — |
| Melting Temperature | min. 104 | °C | — |
| Ash Content | max. 0.4 | % | — |
Packaging & Availability
- Packaging Type
- Packaging
Paper bags with net weight 25 kg, placed on pallets with 600 kg total weight and _x001d_xed with PE stretch foil, or in big-bags with net weight 500, 600 or 1 000 kg placed on pallets.
Storage & Handling
- Storage and Manipulation
Sulfenax® TBBS is stored in closed packing, in dry and ventilated storage rooms, at a temperature below 35°C. _x001e_e material should be protected against direct e_x001a_ect of solar radiation. Prevent from a direct contact of the material with skin, eyes and respiratory