화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.32, No.7, 1434-1439, July, 2015
DOI10.1007/s11814-014-0313-y  Export Citation
Influence of crosslinker amount on swelling and gel properties of hectorite/poly(acrylamide/itaconic acid) nanocomposite hydrogels
Tao Wan1, 2, †, Wenzhong Cheng1, Zhiling Zhou1, †, Min Xu1, Chuzhang Zou1, and Ruixiang Li1
  • 1Mineral Resources Chemistry Key Laboratory of Sichuan Higher Education Institutions, Chengdu University of Technology, Chengdu 610059, Sichuan, China
  • 2State Key Lab of Geohazard Prevention & Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, Sichuan, China
E-mail:,
A new hectorite/poly(acrylamide/itaconic acid) nanocomposite hydrogel was synthesized by inverse microemulsion polymerization. The effects of crosslinker amount on water absorbency and salt absorbency, swellability, pHsensitivity, gel strength, temperature-and shear-resistance were investigated. Water and salt absorbencies, pH-sensitivity and swellability decreased, while gel strength and temperature-and shear-resistance increased with increasing crosslinker amount. Nanocomposite hydrogels had good thermal stability with onset decomposing temperature of 252 oC. The as-synthesized hydrogel particles were regular and spherical-like and had an average particle size of 43 nm in the range of 30-65 nm. Hectorite clay platelets were exfoliated and transformed into amorphous structure.
Keywords:Hydrogel;Nanocomposite;Hectorite;Microemulsion Polymerization
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