Fabrication and characterization of poly(N-isopropylacrylamide) /SiO2 nanocomposite hydrogels

doi:10.3969/j.issn.1000-1565.2018.05.008

Abstract

Abstract: In this work, poly(N-isopropylacrylamide)/SiO₂ nanocomposite hydrogel with high mechanical strength and thermo-responsiveness were successfully prepared through a facile and in-expensive methods of in-situ polymerization. The structure, mechanical properties, and thermo-dynamic performance of the resultant samples were analyzed and characterized using SEM, TEM, FT-IR, ASG-J electronic universal testing machine, and DSC.The results indicated that the nanocomposite hydrogel showed a well-defined and interconnected 3D porous network structure with the pore size of 1 μm, high compression mechanical strength(8 MPa)and excellent toughness, and a clear phase transition temperature of 35 ℃.

Key words: hydrogel, nanocomposite materials, SiO₂, high strength, smart materials

CLC Number:

Q938.8

ZHOU Lili, LIU Yanxia, LIU Le, FENG Xianqi. Fabrication and characterization of poly(N-isopropylacrylamide) /SiO₂ nanocomposite hydrogels[J]. Journal of Hebei University (Natural Science Edition), 2018, 38(5): 496-502.

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Fabrication and characterization of poly(N-isopropylacrylamide) /SiO₂ nanocomposite hydrogels

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