层状仿生高分子纳米复合材料

自然界中,鲍鱼壳具有有机-无机多级次层状结构以及大量的复合界面作用,力学性能优异。这一独特的层状结构主要由霰石碳酸钙片层构成,并通过体积分数约为5%的生物高分子在层间进行粘合。受鲍鱼壳这一微观结构的启发,我们利用不同的基元材料如纳米蒙脱土、碳纳米管以及氧化石墨烯等构筑仿鲍鱼壳层状结构,并结合多种界面设计,实现不同界面、不同基元材料之间的协同作用,得到了力学性能优异的高分子纳米复合材料。仿生高分子纳米复合材料的成功制备,为今后的研究提供了崭新的思路,拓宽了高分子纳米复合材料的应用前景。

LayeredBioinspired Polymer Nanocomposites

The natural nacre possesses organic-inorganic hierarchical layered structure and abundant synergistic interface interactions resulting in extraordinary mechanical properties. This layered architecture is built by the aragonite platelets which are glued by the biopolymer with a volume fraction of 5%. Inspired by the relevance between the microstructure and properties of nacre, various building blocks such as nanoclay, carbon nanotube and graphene oxide can be used to construct nacre-like layered structure. Besides, applying multiple interface interactions, synergistic effect from interface interactions as well as building blocks can be achieved leading to high-performance polymer nanocomposites. The bioinspired strategy to fabricate polymer nanocomposites opens up a new avenue for future research work and broadens the application of polymer nanocomposites.