Fundamental Investigation of Novel Bark-Based Lignocellulosic Nanofibrils for Composite Applications

用于复合材料应用的新型树皮木质纤维素纳米原纤维的基础研究

• 批准号: RGPIN-2017-06737
• 负责人: Yan, Ning
• 金额: $ 3.42万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=637740
• 关键词: Fundamental; Investigation; Novel; Bark; Based

There is a growing interest in utilizing renewable biomass materials to produce environmentally friendly products due to the concern for fossil fuel depletion and climate change. Bark, a waste stream produced in large quantities in saw mills and pulp and paper operations, is a valuable source of biomass that has found only a few low-valued usages in the industry. Over the last 6 years, we have developed extraction and conversion technologies for obtaining polyphenolic compounds from bark and to make value-added bark-based adhesives, resins, and foam products. However, depending on the wood species, a significant amount of solid residues still remain after the extraction. In order to realize the full potential of a bark biorefinery, utilization of all bark fractions, including the bark extraction residues, is necessary. The proposed NSERC Discovery application complements and extends our past work on bark biorefinery to focus on fundamental understanding of the nanofibrillation process of converting the bark extraction residues to highly promising novel bark-based lignocellulosic nanofibrils (BLNF) with a high lignin content. The specific research objectives that will be addressed by this NSERC proposal are to elucidate:

由于对化石燃料耗尽和气候变化的关注，人们对利用可再生生物质材料生产环境友好型产品的兴趣越来越大。树皮是锯米尔斯厂和制浆造纸厂大量产生的废物流，是生物质的宝贵来源，在工业中仅发现少数低价值用途。在过去的6年里，我们开发了从树皮中提取多酚化合物的提取和转化技术，并生产增值的树皮粘合剂、树脂和泡沫产品。然而，根据木材的种类，提取后仍有大量的固体残留物。为了实现树皮生物精炼厂的全部潜力，需要利用所有树皮级分，包括树皮提取残余物。拟议的NSERC Discovery应用程序补充并扩展了我们过去在树皮生物炼制方面的工作，重点关注将树皮提取残留物转化为具有高木质素含量的非常有前途的新型树皮木质纤维素纳米纤维（BLNF）的纳米原纤化过程的基本理解。本NSERC提案将解决的具体研究目标是阐明：