What is rubber accelerator OTOS？
- Mingpai
- 2024-07-09 11:01:54
Rubber accelerator OTOS, chemically known as N-Oxydiethylene Thiocarbamoyl-N'-Oxydiethylene Sulfenamide, has the molecular formula C9H16N2O2S2 and a molecular weight of 248.4, registered under CAS number 13752-51-7. Classified under the family of thiuram sulfenamides, OTOS serves as a primary accelerator for various types of rubbers including natural rubber, styrene-butadiene rubber (SBR), ethylene-propylene-diene monomer (EPDM), and other general-purpose rubbers.
OTOS distinguishes itself with several key features in rubber processing and vulcanization:
- Improved Processing Safety: Compared to accelerators like MBT and MDB from benzothiazole or sulfenamide classes, OTOS demonstrates better delayed action and safety during processing.
- Optimized Vulcanization Characteristics: With a vulcanization critical temperature at 149°C, it ensures excellent anti-reversion properties when applied in high-temperature vulcanization of natural rubber, leading to products with superior heat resistance.
- Enhanced Physical Properties: It promotes fast curing, long scorch time, high tensile strength, low permanent set, low compression set heat build-up, and good elasticity in the cured rubber compounds.
- Synergistic Effects: When combined with benzothiazoles or other sulfenamides, OTOS exhibits synergistic effects, allowing for a reduction in the total amount of accelerator needed, thereby enhancing cost-effectiveness.
- Environmental Friendliness: Offered in eco-friendly versions, OTOS is suitable for applications where environmental compliance is crucial.
Given these properties, OTOS is a versatile and efficient choice in the production of high-quality rubber goods demanding both performance enhancement and processing economy.
