RESEARCH PAPER |
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Carboxyl-functionalized Carbon Nanotubes Reinforced Hybrid Supramolecular Hydrogel and Its Physical Properties |
WANG Yuxiang1, FENG Chuanliang2
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1 State Key Lab of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University,Shanghai 200240; 2 School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240 |
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Abstract Hybrid supramolecular hydrogels embedded with carboxyl-functionalized carbon nanotubes (CNTs-COOH) were obtained via physical cross-linking. Transmission electron microscopy (TEM) were used to observe the microstructure of the sample. The effect of the introduction of the CNTs-COOH on the swelling behavior, gel-sol transition temperature and mechanical property of the gel were detected. The results revealed that compared with the initial gel, the inclusion of the carbon nanotubes(2.5wt.%)had no impacts on the morphology and microstructure of the gel, but caused an increase of its gel-sol transition temperature, also an ob-vious enhancement of the mechanical properties of the hybrid hydrogels. In addition, the hybrid hydrogel still retained the basic cha-racteristics of the supramolecular hydrogel, especially the characteristics of shear thinning, temperature sensitivity and spontaneous recovery.
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Published:
Online: 2018-05-08
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