Abstract In this work, non-covalently functionalized reduced graphene oxide (rGO) reinforced poly(vinyl alcohol) (PVA) nanocomposites were prepared by solution mixing. The agglomeration of graphene sheets was prevented by using surface modifying agent poly(sodium 4-styrenesulfonate) (PSS). The improved mechanical properties, including the Young's modulus and tensile strength of the PVA/rGO nanocomposites compared to neat PVA were attributed to the strong interactions between PVA and rGO such as π–π, hydrogen bonding, and CH–π. A 55% maximum increase in the modulus was obtained by adding only 0.1 wt% rGO, and an increase of 48% in tensile strength was achieved by adding 0.3 wt% rGO. In addition, the thermal properties of the nanocomposites were also improved, which was attributed to the restriction of graphene oxide (GO)/rGO sheets on the chain mobility of polymers on the GO/rGO sheets surface.

中文翻译：

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非共价功能化石墨烯增强聚（乙烯醇）

摘要 在这项工作中，通过溶液混合制备了非共价官能化还原氧化石墨烯 (rGO) 增强的聚乙烯醇 (PVA) 纳米复合材料。通过使用表面改性剂聚（4-苯乙烯磺酸钠）（PSS）防止石墨烯片的团聚。与纯 PVA 相比，PVA/rGO 纳米复合材料的改进机械性能，包括杨氏模量和拉伸强度，归因于 PVA 和 rGO 之间的强相互作用，如 π-π、氢键和 CH-π。通过仅添加 0.1 wt% 的 rGO，模量最大增加了 55%，而通过添加 0.3 wt% 的 rGO，拉伸强度增加了 48%。此外，纳米复合材料的热性能也得到了改善，