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Bioinspired reinforcement of cyclosiloxane hybrid polymer
Yujie Song1, Xiuzhi Tang, Yen Nan Liang
1School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, Nanyang Avenue, 639798, Singapore. asxhu@ntu.edu.sg.
Abstract:
Structural analysis showed that cyclosiloxane hybrid polymer (CHP) is a collection of nano-sized nacre-like structures in random orientations. Inspired by the reinforcement of nacre-like materials, basal-functionalized graphene (GO-AA) was inserted between CHP layers, acting as 'double-sided tape' to improve the mechanical properties. The resulting GO-AA/CHP nanocomposites showed a 156% improvement in toughness with only a 0.08 wt% loading of GO-AA, and a 25% improvement in thermal conductivity with a 0.10 wt% loading of GO-AA. The proposed 'double-sided tape' effect was also used to explain the highly efficient enhancement in thermal conductivity. This research promotes the application of CHP in harsher environments, demonstrates its prospects in thermal management areas, and contributes to nature-inspired materials design.
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