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For instance, the adsorption of silica for accelerator could slow down the vulcanization reaction rate and decrease cross-linking density of rubber [16, 17]. On the other hand, judging from the
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- Which rubber accelerators are suitable for vulcanization?
- Western Reserve Chemical offers a full range of rubber accelerators to increase the speed of the vulcanization of rubber. We supply both primary and secondary accelerators that are suitable for both for natural rubber and synthetic rubber compounds including NR, CR, SBR, NBR, BR, EPDM and chlorobutyl rubber.
- What is a rubber accelerator?
- The rubber accelerator refers to a rubber vulcanization accelerator. The vulcanization of rubber is mainly carried out using sulfur, but the reaction of sulfur with rubber is very slow, so vulcanization accelerators have emerged.
- Should rubber vulcanization accelerators be discontinued?
- With the rapid growth in global demand for rubber products, the safety and environmental concerns of rubber vulcanization accelerators are becoming more prominent, and many countries have decreed that the production and use of certain accelerators that are carcinogenic or suspected of being carcinogenic should be discontinued.
- What are vulcanization accelerators?
- Vulcanization accelerator also decreases the amount of sulfur needed to cross-link the polydiene, which improves the aging properties of the vulcanized rubber. The vulcanization accelerators can be further classified as primary and secondary accelerators. Some representative examples of primary accelerators include thiazoles and sulfenamides.
- How does vulcanization affect the performance of rubber products?
- Vulcanization, as the key step in rubber process，directly affects the processing and performance of rubber products. Compared with sulfur alone, the presence of small amounts of accelerator together with sulfur can significantly improve the properties of final vulcanisate.
- What is vulcanization process?
- Vulcanization is the process of transforming linear chain macromolecules into three-dimensional network macromolecules through chemical cross-linking, which transforms natural or synthetic rubber into valuable vulcanized rubber.
