Comparison effects of lanthanum stearate and antioxidants in epoxidized natural rubber
| Autor: | Yongyue Luo, Kui Xu, Zheng Peng, Jie-Ping Zhong, Changjin Yang |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Antioxidant
Materials science medicine.medical_treatment Vulcanization chemistry.chemical_element General Chemistry law.invention chemistry.chemical_compound Natural rubber Aging resistance chemistry Geochemistry and Petrology Stearate law visual_art medicine visual_art.visual_art_medium Lanthanum Organic chemistry |
| Zdroj: | Journal of Rare Earths. 33:1236-1240 |
| ISSN: | 1002-0721 |
| DOI: | 10.1016/s1002-0721(14)60550-0 |
| Popis: | This work studied possibilities of using lanthanum stearate (LaSt) as an antioxidant in epoxidized natural rubber containing 25 mol.% expoxidation (ENR25) compounds. For comparison purposes, two commercial antioxidant 4010NA and MB were also used. The influence of LaSt, antioxidant 4010NA and MB on cure characteristics, mechanical properties, crosslink density, hot air aging and thermo-oxidative degradation were studied. The results indicated that the incorporation of LaSt and antioxidants could accelerate the vulcanization of ENR. The ENR vulcanizates with antioxidant MB had better mechanical properties than 4010NA and LaSt. Compared with antioxidant 4010NA and MB, the ENR25 vulcanizates with the addition of LaSt exhibited the best hot air aging resistance and thermo-oxidative stability. |
| Databáze: | OpenAIRE |
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