石墨烯增强的各向异性和可调谐的液晶弹性体纳米复合材料的光机械致动。
Graphene-Enabled Superior and Tunable Photomechanical Actuation in Liquid Crystalline Elastomer Nanocomposites.
机构信息
MOE Key Laboratory for Green Preparation and Application of Functional Materials, Hubei Collaborative Innovation Center for Advanced Organic Chemical Materialsand School of Materials Science and Engineering, Hubei University, Wuhan, 430062, China.
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
出版信息
Adv Mater. 2015 Nov 4;27(41):6376-81. doi: 10.1002/adma.201503680. Epub 2015 Sep 21.
Programmable photoactuation enabled by graphene: Graphene sheets aligned in liquid crystalline elastomers are capable of absorbing near-infrared light. They thereafter act as nanoheaters and provide thermally conductive pathways to trigger the nematic-to-isotropic transition of elastomers, leading to macroscopic mechanical deformation of nanocomposites. Large strain, high actuation force, high initial sensitivity, fast reversible response, and long cyclability are concurrently achieved in nanocomposites.
基于石墨烯的可编程光致动
液晶弹性体中取向的石墨烯薄片能够吸收近红外光。此后，它们充当纳米加热器，并提供热传导途径以触发弹性体的向列-各向同性转变，导致纳米复合材料的宏观机械变形。在纳米复合材料中同时实现了大应变、高致动力、高初始灵敏度、快速可逆响应和长循环寿命。
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