Morphology, mechanical and thermal properties of graphene-reinforced poly(butylene succinate) nanocomposites
Morphology, mechanical and thermal properties of graphene-reinforced poly(butylene succinate) nanocomposites
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DOI：
10.1016/j.compscitech.2011.05.007
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发表时间：
2011-12
影响因子：
9.1
通讯作者：
Xin Wang;Hongyu Yang;Lei Song;Yuan Hu;W. Xing;Hongdian Lu
中科院分区：
文献类型：
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作者：
Xin Wang;Hongyu Yang;Lei Song;Yuan Hu;W. Xing;Hongdian Lu
采用溶液法制备了石墨烯纳米片（GNS）增强聚丁二酸丁二醇酯（PBS）纳米复合材料。采用AFM、TEM、XRD和拉曼光谱等手段对由氧化石墨（GO）化学还原得到的石墨烯纳米片进行了表征。通过SEM观察来检查GNS在PBS基质中的分散状态，其揭示了GNS在PBS基质中的均匀分布。加入2.0wt%的GNS后，拉伸强度提高了21%，储能模量提高了24%。石墨烯基纳米复合材料的导电性和热稳定性也得到改善。DSC测量表明石墨烯片的存在对纳米复合材料的结晶度没有显着影响。因此，纳米复合材料的高性能主要归因于GNS在聚合物基体中的均匀分散和两种组分之间的强界面相互作用。
Graphene nanosheets (GNSs) reinforced poly(butylene succinate) (PBS) nanocomposites are facilely obtained by a solution-based processing method. Graphene nanosheets, which are derived from chemically reduced graphite oxide (GO), are characterized by AFM, TEM, XRD and Raman spectra. The state of dispersion of the GNSs in the PBS matrix is examined by SEM observations that reveals homogeneous distribution of GNSs in PBS matrix. A 21% increase in tensile strength and a 24% improvement of storage modulus are achieved by addition of 2.0wt% of GNS. The electrical conductivity and thermal stability of the graphene-based nanocomposite are also improved. DSC measurement indicates that the presence of graphene sheets does not have a remarkable impact on the crystallinity of the nanocomposites. Therefore, the high performances of the nanocomposites are mainly attributed to the uniform dispersion of GNSs in the polymer matrix and strong interfacial interactions between both components.