个人信息Personal Information
教授
博士生导师
硕士生导师
性别:男
毕业院校:中科院山西煤化所
学位:博士
所在单位:化工学院
学科:功能材料化学与化工. 物理化学
办公地点:大连理工大学 西校区化工综合楼A212
联系方式:zbzhao@dlut.edu.cn
电子邮箱:zbzhao@dlut.edu.cn
Polymer/Graphene Hybrid Aerogel with High Compressibility, Conductivity, and "Sticky" Superhydrophobicity
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论文类型:期刊论文
发表时间:2014-03-12
发表刊物:ACS APPLIED MATERIALS & INTERFACES
收录刊物:SCIE、EI、PubMed、Scopus
卷号:6
期号:5
页面范围:3242-3249
ISSN号:1944-8244
关键字:graphene aerogel; compressibility; poly(dimethylsiloxane); electromechanical performance; synergistic effect; superhydrophobicity
摘要:The idea of extending functions of graphene aerogels and achieving specific applications has aroused wide attention recently. A solution to this challenge is the formation Of a hybrid structure where the graphene aerogels are decorated with other functional nanostructures. An infiltration-evaporation- curing strategy has been proposed by the formation of hybrid structure containing poly(dimethylsiloxane) (PDMS) and compressible graphene aerogel (CGA), where the cellular walls of the CGA are coated uniformly with an integrated polymer layer. The resulting composite shows enhanced compressive strength and a stable Young's modulus that are superior to those of pure CGAs. This unique structure combines the advantages of both components, giving rise to an excellent electromechanical performance, where the bulk resistance repeatedly shows a synchronous and of the volume during compression at a wide range of compressed rates. Furthermore, the foamlike structure delivers a water droplet with "sticky". superhydrophobicity and a size as large as 32 mu L that remains tightly pinned to the composite, even when it is turned upside-down. This is the first demonstration of superhydrophobicity with strong adhesion on a foamlike structure. These outstanding properties qualify the PDMS/CGA composites developed here as promising candidates for a wide range of applications such as in sensors, actuators, and materials used for biochemical separation and tissue engineering.