| Evaluation of Thermal Stability of Insoluble Sulfur in Compound by Vulcanization Reaction Activation Energy |
| Received:October 16, 2020 Revised:October 16, 2020 |
| DOI：10.12136/j.issn.1000-890X.2022.05.0384 |
| Key Words: IS；thermal stability；vulcanization reaction；activation energy；sulfur element content |
| Author Name | Affiliation | E-mail | | LI Liang* | Sennics Co.，Ltd | Yang.Gao@sennics.com | | GAO Yang | Sennics Co.，Ltd | | | ZHANG Jin | Sennics Co.，Ltd | |
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| Abstract: |
| The thermal stability of insoluble sulfur（IS） in compound was evaluated by vulcanization reaction activation energy（Ea）of compounds.The results showed that the vulcanization curves of the compounds with IS having different thermal stability were slightly different，but the thermal stability of IS had no obvious effect on the vulcanization speed of the compound.The order of the Ea from large to small of the compound was opposite to that of the thermal stability from high to low of IS. The higher the thermal stability of IS was，the smaller the Ea of the compound was，and the lower the thermal stability of IS was，the larger the Ea of the compound was. The test results of the free sulfur element content and surface tackiness of the compound showed that the thermal stability of IS in the compound corresponded with the test results of the thermal stability of raw material IS and the Ea of the compound. The thermal stability of IS in the compound could be evaluated by using the Ea of the compound and the thermal stability of raw material IS. |
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