Preparation of High Wet-Strength Paper from Rice Straw Pulp by Treatment with ZnCl<sub>2</sub> Aqueous Solution

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  • Xu Yinchao
    School of Environmental and Natural Resources, Zhejiang University of Science and Technology
  • Jin Guangfan
    School of Environmental and Natural Resources, Zhejiang University of Science and Technology
  • Zhai Rui
    School of Environmental and Natural Resources, Zhejiang University of Science and Technology
  • Zhu Chunfeng
    School of Biological and Chemical Engineering, Zhejiang University of Science and Technology
  • Wang Lijun
    Zhejiang Hanghua New Materials Science & Technology Co., Ltd
  • Wu Anbo
    Hangzhou Special Paper Industry Co., Ltd
  • Nakagawa-Izumi Akiko
    Faculty of Life and Environmental Sciences, University of Tsukuba

Bibliographic Information

Other Title
  • 塩化亜鉛水溶液処理による稲ワラパルプ高湿潤強度紙の製造
  • エンカ アエン スイヨウエキ ショリ ニ ヨル イネ ワラパルプ コウシツジュン キョウドシ ノ セイゾウ

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<p>In this research, laboratory sheets made from rice straw bleached chemical pulps were impregnated with a ZnCl2 aqueous solution to prepare high wet-strength paper, and the effects of the concentration of the ZnCl2 solution, impregnation temperature and period, and ethanol washing period were evaluated through single factor tests, The optimal conditions was determined to be 60%, 65ºC, 10 min, and 12 min, respectively. Under these conditions, the dry tensile and dry burst indices of the sheet prepared from the impregnated laboratory sheets doubled, and both the wet indices quadrupled as compared to those from untreated laboratory sheets. There were no significant changes in the cellulose crystal form and crystallinity. However, the paper surface morphology changed significantly.</p>

Journal

  • Mokuzai Gakkaishi

    Mokuzai Gakkaishi 66 (1), 46-52, 2020-01-25

    The Japan Wood Research Society

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