Polymer(Korea) (폴리머)

The Polymer Society of Korea (한국고분자학회)
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Optimization of Preparing Poly(AM-DMDAAC)/MMT Superabsorbent Nanocomposite by Orthogonal Experiment

Orthogonal 방법을 통한 Poly(AM-DMDAAC)/MMT 고흡수성 나노복합체 제조 연구

  • Zhou, Ming (School of Material Science and Engineering, Southwest Petroleum University) ;
  • Yang, Shuangqiao (School of Material Science and Engineering, Southwest Petroleum University) ;
  • Zhou, Yongguo (Sichuan Xinwei Rubber CO., LTD.) ;
  • Qin, Nan (School of Material Science and Engineering, Southwest Petroleum University) ;
  • He, Songtao (Sichuan Xinwei Rubber CO., LTD.) ;
  • Lai, Dong (School of Material Science and Engineering, Southwest Petroleum University) ;
  • Xie, Zhongqiang (School of Material Science and Engineering, Southwest Petroleum University) ;
  • Yuan, Jundong (Sichuan Xinwei Rubber CO., LTD.)
  • Received : 2013.07.11
  • Accepted : 2013.10.02
  • Published : 2014.01.25
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Abstract

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 $659.53g{\cdot}g^{-1}$ and in 2 wt% sodium chloride solution is $116.25g{\cdot}g^{-1}$. Compared with the range values of different factors ($R_j$), 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.

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References

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