Transparent h-BN/polyacrylamide nanocomposite hydrogels with enhanced mechanical properties  

作　　者：Zhi-Qiang Duan Ming Zhong Fu-Kuan Shi Xu-Ming Xie 

机构地区：[1]Laboratory of Advanced Materials (MOE), Department of Chemical Engineering, Tsinghua University

出　　处：《Chinese Chemical Letters》2016年第9期1490-1494,共5页中国化学快报（英文版）

基　　金：financially supported by NSFC (Nos. 21474058 and 21274079);the State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University (Project No. LK1404);Tsinghua University Scientific Research Project (No. 2014Z22069)

摘　　要：In this study, a facile way has been proposed to prepare transparent, tough and flexible polyacrylamide （PAM） hydrogels which is composed of a dually crosslinked single network by chemical crosslinking of N,N＇-methylenebisacrylamide （BIS） and physical crosslinking of hydrophilic hexagonal boron nitride （h- BN） nanosheets. The resulting h-BN/PAM nanocomposite hydrogels are highly transparent, and exhibit significantly enhanced mechanical properties compared to the dark （GO）/PAM nanocomposite hydrogels or chemical crosslinking PAM hydrogels. Thus it opens up new opportunities for developing next- generation transparent, tough and flexible hydrogels that hold great promise in such important applications as light responsive soft robot and liquid microlenses.In this study, a facile way has been proposed to prepare transparent, tough and flexible polyacrylamide （PAM） hydrogels which is composed of a dually crosslinked single network by chemical crosslinking of N,N＇-methylenebisacrylamide （BIS） and physical crosslinking of hydrophilic hexagonal boron nitride （h- BN） nanosheets. The resulting h-BN/PAM nanocomposite hydrogels are highly transparent, and exhibit significantly enhanced mechanical properties compared to the dark （GO）/PAM nanocomposite hydrogels or chemical crosslinking PAM hydrogels. Thus it opens up new opportunities for developing next- generation transparent, tough and flexible hydrogels that hold great promise in such important applications as light responsive soft robot and liquid microlenses.

关 键 词：Hexagonal boron nitride Polyacrylamide Nanocomposite hydrogels Mechanical properties Transparency 

分 类 号：TB332[一般工业技术—材料科学与工程] TQ427.26[化学工程]