摘要
在人造皮肤、航空航天材料、柔性电子器件等领域中,拥有协同力学性能的材料是迫切需求的。基于仿鲍鱼壳结构,各种各样的高强度、高韧性,以石墨烯为基元材料的纳米复合材料已经被制备出来。在这里,我们提出了一种新的基于界面结构设计的材料增强策略,并制备了强韧一体化的石墨烯-丝胶蛋白-单壁碳纳米管薄膜。由于丝胶蛋白二级结构引入的界面结构的协同增强作用,石墨烯-丝胶蛋白-单壁碳纳米管三元纳米复合材料展现出优异的强韧一体化力学性能。此外这种仿生界面结构设计策略对提高力学性能非常有效,同时也为以后设计强韧一体化工业应用材料提供了一种新思路。
Materials with integrated mechanical properties are compellingly required in industry applications such as artificial skin, aerospace materials, flexible supercapacitor electrodes, etc. Till now, various strong and tough graphene-based nanocomposites have been fabricated through nacre-inspired fabricating strategy. Herein, we promoted a new enhancing strategy based on interface structure design, and fabricated integrally strong and tough Graphene-SWCNT-Sericin membrane. Since being intensified by interface structure derived from secondary structure domains of intersected Sericin protein, Graphene-SWCNT-Sericin nanocomposites showed exceptional integrated strength and toughness. Besides, this bio-inspired interface structure design strategy is highly effective in improving mechanical performance, and could also spark a new approach of designing strong and tough industry-applicable materials in future researches.
引文
[1]Wan,S.;Hu,H.;Peng,J.;Li,Y.;Fan,Y.;Jiang,L.;Cheng,Q.Nanoscale 2016,8:5649.
[2]Wan,S.;Li,Y.;Peng,J.;Hu,H.;Cheng,Q.;Jiang,L.ACS Nano 2015,9:708.
[3]Wan,S.;Peng,J.;Li,Y.;Hu,H.;Jiang,L.;Cheng,Q.ACS Nano 2015,9:9830.