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3D printing of lignin: Challenges, opportunities and roads onward

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  • معلومة اضافية
    • Publisher Information:
      2021-06
    • نبذة مختصرة :
      As the second most abundant biopolymer on earth, and as a resource recently becoming more available in separated and purified form on an industrial scale due to the development of new isolation technologies, lignin has a key role to play in transitioning our material industry towards sustainability. Additive manufacturing (AM), the most efficient-material processing technology to date, has likewise made great strides to promote sustainable industrial solutions to our needs in engineered products. Bringing lignin research to AM has prompted the emergence of the nascent "lignin 3D printing" field. This review presents the recent state of art of this promising field and highlights its challenges and opportunities. Following a review of the industrial availability, molecular attributes, and associated properties of technical lignins, we review R&D efforts at implementing lignin systems in extrusion-based and stereolithography (SLA) printing technologies. Doing so underlines the adage of lignin research that "all lignins are not created equal," and stresses the opportunity nested in this chemical diversity created mostly by differences in isolation conditions to molecularly select and tune the attributes of technical lignin systems towards desirable properties, be it by modification or polymer blending. Considering the AM design process in its entirety, we finally propose onward routes to bring the full potential to this emerging field. We hope that this review can help promote the unique value and overdue industrial role of lignin in sustainable engineered materials and products.
    • الموضوع:
    • Availability:
      Open access content. Open access content
      http://creativecommons.org/licenses/by/4.0
      Creative Commons Attribution 4.0 International
    • Note:
      English
    • Other Numbers:
      VPI oai:vtechworks.lib.vt.edu:10919/104424
      0006-3525
      e23431
      https://doi.org/10.1002/bip.23431
      112
      6
      33974275
      1097-0282
      1358847973
    • Contributing Source:
      VIRGINIA TECH
      From OAIster®, provided by the OCLC Cooperative.
    • الرقم المعرف:
      edsoai.on1358847973
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