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A facile method for the synthesis of foamed silicone rubber

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Abstract

Foamed silicone rubber was prepared by mixing 45% vinyl silicone oil (Base), Karstedt platinum catalyst (Cata), and hydrogenated silicone oil (SiH) and the resulting material was subjected to secondary vulcanization, which led to its performance requirements. Vinyl silicone oil and hydrogenated silicone oil underwent an addition reaction under the action of a platinum catalyst to form an elastomer with a cross-linked network structure. The results showed that by increasing the content of hydrogenated silicone oil in the formulation, the elongation at break of the foamed silicone gel material decreased but the tensile strength increased. When the content of hydrogenated silicone oil in the formulation decreased, the elongation at break of the foamed silicone material increased. When the content of Karstedt catalyst in the formulation increased, the formation time of the reaction gel was greatly shortened, and the cell structure tended to be dense but delicate. When the proportion of vinyl silicone oil in the formulation increased, the elongation at break of the foamed, molded silicone rubber increased. However, the elastic modulus decreased, and the thermal stability improved. Finally, a more suitable formulation of VBase:VCata:VSiH = 32:1:2 was obtained, which showed a tear resistance of 5.52 KN/m, ductility of 133%, and limiting oxygen index of 26 with a stability temperature of 346.8 °C when the thermal mass loss reached 95%.

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Acknowledgements

National Natural Science Foundation of China (22271025, 22301022), a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions, Postgraduate Research & Practice Innovation Program Project of Jiangsu Province (No. KYCX2_3050) supported this work and all the above support is gratefully acknowledged.

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Authors and Affiliations

  1. Jiangsu Key Laboratory of Environmentally Friendly Polymeric Materials, School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering, Changzhou University, Changzhou, 213164, China

    Jingjing Yang, Zhichen Zhu, Li Jiang, Hongjun Yang, Qimin Jiang, Xiaoqiang Xue, Bibiao Jiang & Wenyan Huang

  2. Changzhou Shangrui Polymer Material Sci. & Tech. Co.,Ltd., Changzhou, 213162, China

    Xiang Jin

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  1. Jingjing Yang
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  2. Zhichen Zhu
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  3. Li Jiang
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  4. Xiang Jin
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  5. Hongjun Yang
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  6. Qimin Jiang
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  7. Xiaoqiang Xue
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  8. Bibiao Jiang
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  9. Wenyan Huang
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Contributions

Jingjing Yang and Zhichen Zhu were synthesized the formed silicone rubber and characterized the properties. Wenyan Huang was designed the synthesitical method and instructed the experiment. Wenyan Huang and Jingjing Yang were writing the paper. Xiang Jin gave the instruction of the experiment. Lijiang,Hongjun Yang, Qimin Jiang, Xiaoqiang Xue and Bibiao Jiang were reviewed the paper and modified the manuscript

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Correspondence to Bibiao Jiang or Wenyan Huang.

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Yang, J., Zhu, Z., Jiang, L. et al. A facile method for the synthesis of foamed silicone rubber. J Porous Mater 31, 1143–1153 (2024). https://doi.org/10.1007/s10934-024-01605-9

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  • DOI: https://doi.org/10.1007/s10934-024-01605-9

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