高分子与纳米材料的界面相互作用对高分子/纳米复合材料的最终性能有很大的影响，因此研究界面相互作用增强高分子/纳米复合材料力学性能的机理十分重要。本项目通过引入二维的超高强度石墨烯，利用高分子在石墨烯表面的附生结晶作用促使高分子在界面形成伸直链结晶层，改善石墨烯与高分子基体的界面相互作用，从而有效提升高分子/石墨烯纳米复合材料的力学性能，并在上海同步辐射光源小角线站搭建适用于快速受力情况下高空间和高时间分辨的X射线散射/衍射原位测试平台，进行高分子/石墨烯纳米复合材料快速受力情况下的原位结构演变研究，在此基础上深入认识附生结晶对结晶性高分子纳米复合材料的增强机理。

The interfacial interactions between polymer and nanomaterials has a great influence on the final properties of polymer nanocomposites, therefore the study that the enhancement mechanism of polymer nanocomposites’ mechanical properties by interfacial interaction is very important. In this project, using the epitaxial crystallization between polymer and two-dimensional graphene with ultrahigh strength, layers of extended chain crystals are prompted at the interface, to improve the interaction of graphene and polymer matrix, so as to effectively enhance the mechanical properties of polymer/graphene nanocomposites. X-ray scattering/diffraction in-situ test platform with high spatial and high temporal under the condition of rapid stress will be built at small angle line station of Shanghai synchrotron radiation, to study in-situ structural evolution of polymer/graphene nanocomposites under the condition of rapid stress, on this basis, the enhancement mechanism of crystallizable polymer nanocomposites’ mechanical properties by epitaxial crystallization will be in-depth understood.