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首页> 外文期刊>Journal of Wood Chemistry and Technology >COMPATIBILITY OF KRAFT LIGNIN, ORGANOSOLV LIGNIN AND LIGNOSULFONATE WITH PIA IN 3D PRINTING
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COMPATIBILITY OF KRAFT LIGNIN, ORGANOSOLV LIGNIN AND LIGNOSULFONATE WITH PIA IN 3D PRINTING

机译：3D印刷中硫酸盐木质素，有机溶剂木质素和木质素磺酸盐与PIA的相容性

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摘要

The compatibility of three different types of lignin, such as Kraft lignin, Organosolv lignin, and lignosulfonate, with PLA, in particular without the addition of any further reagents or compatibilizers, is investigated. The unmodified lignins were thoroughly characterized to establish their interaction potential in lignin-PLA composite formation. The obtained double-extruded binary systems containing 5, 10, and 15 wt % lignin in PLA were characterized in terms of chemical conversion ((31) P NMR), thermal behavior (TGA, DSC), and cellular morphology (SEM). Additionally, the flexural and impact properties as well as the melt volume rate (MVR) of the extruded materials, in the form of 3D-printed bars, were analyzed, and the effect of lignin addition to PLA studied. The results revealed poor mechanical properties for the Kraft lignin-PLA blends, but higher compatibility of Organosolv lignin-PLA blends. Lignosulfonate-PLA blends showed a promising behavior for 3D-printing. A special nucleation effect, potentially useful in foaming applications, was observed in this study.
机译：研究了三种不同类型的木质素（例如卡夫木质素，有机溶剂木质素和木质素磺酸盐）与PLA的相容性，特别是在不添加任何其他试剂或增容剂的情况下。对未修饰的木质素进行了彻底的表征，以建立它们在木质素-PLA复合材料形成中的相互作用潜力。通过化学转化率（（31）P NMR），热行为（TGA，DSC）和细胞形态（SEM）表征了所得的PLA中含5、10和15 wt％木质素的双挤出二元体系。此外，还分析了以3D打印条形式的挤压材料的挠曲和冲击性能以及熔体体积率（MVR），并研究了木质素添加到PLA中的作用。结果表明，硫酸盐木质素-PLA共混物的机械性能较差，但有机溶剂木质素-PLA共混物的相容性更高。木质素磺酸盐-PLA混合物对3D打印显示出良好的行为。在这项研究中观察到一种特殊的成核作用，可能在发泡应用中有用。

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  • 来源
    《Journal of Wood Chemistry and Technology》 |2019年第3期|14-30|共17页
  • 作者

    Mimini Vebi; Sykacek Eva; Syed Hashim Sharifah Nurul Ain; Holzweber Julian; Hettegger Hubert; Fackler Karin; Potthast Antje; Mundigler Norbert; Rosenau Thomas;

  • 作者单位

    Univ Nat Resources & Life Sci Vienna, Div Chem Renewable Resources, Dept Chem, Konrad Lorenz Str 24, A-3430 Tulln, Austria|Wood Kplus Kompetenzzentrum Holz GmbH, Linz, Austria;

    Univ Nat Resources & Life Sci Vienna, Inst Nat Mat Technol, Dept Agrobiotechnol, Tulln, Austria;

    Univ Nat Resources & Life Sci Vienna, Div Chem Renewable Resources, Dept Chem, Konrad Lorenz Str 24, A-3430 Tulln, Austria;

    Univ Nat Resources & Life Sci Vienna, Inst Nat Mat Technol, Dept Agrobiotechnol, Tulln, Austria;

    Univ Nat Resources & Life Sci Vienna, Div Chem Renewable Resources, Dept Chem, Konrad Lorenz Str 24, A-3430 Tulln, Austria;

    Lenzing AG, Lenzing, Austria;

    Univ Nat Resources & Life Sci Vienna, Div Chem Renewable Resources, Dept Chem, Konrad Lorenz Str 24, A-3430 Tulln, Austria;

    Univ Nat Resources & Life Sci Vienna, Inst Nat Mat Technol, Dept Agrobiotechnol, Tulln, Austria;

    Univ Nat Resources & Life Sci Vienna, Div Chem Renewable Resources, Dept Chem, Konrad Lorenz Str 24, A-3430 Tulln, Austria|Abo Akad Univ, Johan Gadolin Proc Chem Ctr, Turku, Finland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Bio-composite; extrusion; Kraft lignin; lignosulfonate; nucleation; Organosolv lignin; polylactic acid; 3D-printing;

    机译：生物复合材料;挤出;牛皮纸木质素;木质素磺酸盐;成核;有机溶剂木质素;聚乳酸;3D打印;

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