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Grafting silica onto reduced graphene oxide via hydrosilylation for comprehensive rubber applications: Molecular simulation and experimental study
Polymer Composites ( IF 4.8 ) Pub Date : 2022-06-22 , DOI: 10.1002/pc.26830 Hao Zhang 1 , Fei Cai 1 , Yanlong Luo 2 , Xiao Yu 1 , Sizhu Wu 1
Polymer Composites ( IF 4.8 ) Pub Date : 2022-06-22 , DOI: 10.1002/pc.26830 Hao Zhang 1 , Fei Cai 1 , Yanlong Luo 2 , Xiao Yu 1 , Sizhu Wu 1
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The development of multifunctional rubber composites and the dispersion of fillers are always a focus in the industrial field of tires. In this work, supported by predictions from molecular simulations, reduced graphene oxide grafted with silica (rGO-g-SiO2) is fabricated through hydrosilylation. Structural and morphological characterization shows that SiO2 is present at the rGO surface. rGO-g-SiO2 was subsequently applied to enhance the performance of solution polymerized styrene butadiene rubber (SSBR) composites. As predicted from simulations, the mechanical and thermal properties of rGO-g-SiO2/SSBR are found to be improved due to an enhanced interfacial interaction and higher degree of phonon matching. In particular, with a 1.5% weight percentage of rGO, the reinforcing index and thermal conductivity of 1.5%-rGO-g-SiO2/SSBR are found to be 168.7% and 114.0% higher than that for 1.5%-rGO/SiO2/SSBR (physical mixture), respectively. The reinforced integrated performance is promising for the potential application of rGO-g-SiO2 as a filler for rubber composites.
中文翻译：
通过氢化硅烷化将二氧化硅接枝到还原氧化石墨烯上用于橡胶的综合应用：分子模拟和实验研究
多功能橡胶复合材料的开发和填料的分散一直是轮胎工业领域关注的焦点。在这项工作中，在分子模拟预测的支持下，通过氢化硅烷化制备了与二氧化硅（rGO-g-SiO 2 ）接枝的还原氧化石墨烯。结构和形态表征表明 SiO 2存在于 rGO 表面。随后应用rGO- g - SiO 2来提高溶液聚合丁苯橡胶 (SSBR) 复合材料的性能。正如模拟所预测的，rGO- g - SiO 2的机械和热性能由于增强的界面相互作用和更高程度的声子匹配，发现 /SSBR 得到了改善。特别是在 rGO 重量百分比为 1.5% 的情况下，发现 1.5%-rGO- g -SiO 2 /SSBR 的增强指数和热导率比 1.5%-rGO/SiO 2高 168.7% 和 114.0% /SSBR（物理混合物），分别。增强的综合性能对于rGO- g - SiO 2作为橡胶复合材料填料的潜在应用前景广阔。
更新日期：2022-06-22
中文翻译：
通过氢化硅烷化将二氧化硅接枝到还原氧化石墨烯上用于橡胶的综合应用：分子模拟和实验研究
多功能橡胶复合材料的开发和填料的分散一直是轮胎工业领域关注的焦点。在这项工作中，在分子模拟预测的支持下，通过氢化硅烷化制备了与二氧化硅（rGO-g-SiO 2 ）接枝的还原氧化石墨烯。结构和形态表征表明 SiO 2存在于 rGO 表面。随后应用rGO- g - SiO 2来提高溶液聚合丁苯橡胶 (SSBR) 复合材料的性能。正如模拟所预测的，rGO- g - SiO 2的机械和热性能由于增强的界面相互作用和更高程度的声子匹配，发现 /SSBR 得到了改善。特别是在 rGO 重量百分比为 1.5% 的情况下，发现 1.5%-rGO- g -SiO 2 /SSBR 的增强指数和热导率比 1.5%-rGO/SiO 2高 168.7% 和 114.0% /SSBR（物理混合物），分别。增强的综合性能对于rGO- g - SiO 2作为橡胶复合材料填料的潜在应用前景广阔。
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