화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.38, No.1, 16-23, January, 2014
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Orthogonal 방법을 통한 Poly(AM-DMDAAC)/MMT 고흡수성 나노복합체 제조 연구
Optimization of Preparing Poly(AM-DMDAAC)/MMT Superabsorbent Nanocomposite by Orthogonal Experiment
Ming Zhou1, 2, Shuangqiao Yang1, 3, †, Yongguo Zhou4, Nan Qin1, Songtao He4, Dong Lai1, Zhongqiang Xie1, and Jundong Yuan4
  • 1School of Material Science and Engineering, Southwest Petroleum University, Sichuan Chengdu, 610500, China
  • 2State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Sichuan Chengdu, 610500, China
  • 3State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
  • 4Sichuan Xinwei Rubber CO., LTD, China
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A novel poly(AM-DMDAAC)/MMT superabsorbent nanocomposites are prepared by radical polymerization using ammonium persulfate (APS) and anhydrous sodium sulfite as a free radical initiator and N,N-methylene bisacrylamide (MBA) as a crosslinker. In this paper, an optimization study on the synthesis of superabsorbent nanocomposites is carried out. Orthogonal array experiment indicates that the optimized conditions is acrylamide (AM) content 23 wt%, diallyl dimethyl ammonium chloride (DMDAAAC) content 6 wt%, montmorillonite (MMT) content 4 wt%, initiator content 0.2 wt% and crosslinker content 0.02 wt%. Under the optimization syntheses conditions concluded, the maximum water absorbency in distilled water is 659.53 g·g^(-1) and in 2 wt% sodium chloride solution is 116.25 g·g^(-1). Compared with the range values of different factors (Rj), the order of significance factors in distilled water is C (MMT) > B (DMDAAC) > A (AM) > D (crosslinker) > E (initiator). MMT is intercalated during polymerization reaction and a nanocomposite structure is formed as shown by TEM analysis and XRD analysis.
Keywords:superabsorbent nanocomposite;orthogonal experiment;MMT;synthesis.
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