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Preparing spherical lignin from rice husk

机译：用稻壳制备球形木质素

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摘要

Lignin is one of the important branched amorphous polymers, which generally has the irregular and fractal morphology. The preparation of regular sphere of lignin needs long steps and special conditions. In this study, the regular sphere of lignin can be simply prepared from rice husk (RH) under certain conditions. Namely, RH is mixed with 35 % ethanol aqueous solution in the proportion of 1:10 (g:mL), non-isothermally heated to 493 K and kept for 5 h. After filtration and air-drying at room temperature, the regular lignin sphere with the diameter of 100-400 nm is obtained. The regular sphere of lignin has the potential utilization in fields such as reactive functional materials, photo sensing materials and surface active materials in cosmetics. The mechanism of formation of the regular spherical lignin is proposed and discussed in this paper.
机译：木质素是重要的支化无定形聚合物之一，其通常具有不规则和分形的形态。木质素规则球的制备需要漫长的步骤和特殊条件。在这项研究中，木质素的规则球体可以在特定条件下简单地由稻壳（RH）制备。即，将RH与35％的乙醇水溶液以1:10（g：mL）的比例混合，非等温加热至493K并保持5小时。过滤并在室温下风干后，获得直径为100-400nm的规则木质素球。木质素的规则球体在化妆品中的反应性功能材料，光敏材料和表面活性材料等领域具有潜在的利用潜力。提出并讨论了规则球形木质素的形成机理。

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  • 来源
    《Bioprocess and Biosystems Engineering》 |2013年第8期|1149-1155|共7页
  • 作者

    Hongxi Zhang; Xu Zhao; Xuefeng Ding; Hong Lei; Zichen Wang;

  • 作者单位

    College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, China,Department of Chemistry, Changji College, North Beijing Road 77, Changji 831100, China;

    College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, China;

    College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, China;

    College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, China;

    College of Chemistry, Jilin University, Qianjin Street 2699, Changchun 130012, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Natural polymer; Uniform geometry; Solvent pulping; Agricultural waste;

    机译：天然聚合物;几何形状均匀;溶剂制浆;农业废弃物;

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