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加入时间:2017-09-06 10:53:20 来源: 访问量:
地 点:ca88会员登录三楼会议室
报告时间:2017年9月9日 (星期六),上午10:30-11:30
朱俊勇教授,美国农业部林产品实验室木质生物质转化利用研究团队负责人,其研究领域涵盖纳米纤维素材料、生物燃料以及生物质化学品等。朱俊勇教授是威斯康星州大学生物工程系兼职教授,芬兰Inaugural Fulbright-Aalto大学能源和可持续自然资源利用特约讲座教授(2015-2016),国际木材科学院院士。同时也是TAPPI journal、Bioenergy Research (also an Associate Editor),BioResources, J.Biobased Materials and Bioenergy等多家国际著名期刊的编委。
Lignocellulose based nanomaterials such as cellulose nanocrystals (CNC) have attracted great interest recently due to renewability, biodegradability, and other unique mechanical and optical properties with a potential to produce a variety of products for a sustainable future. Achieving economic and environmentally sustainable production, however, is the key to commercial success.
In this presentation, I will outline the current status of cellulose nanomaterial production including the deficiencies of existing technologies. Then, I would like to discuss some of our research on integrated production of cellulose nanocrystals (CNC) and fibrils (CNF) with full recovery of chemicals. Specifically I will present our recent study using dicarboxylic acids (DCAs) for sustainable and potentially economical production of highly thermal stable and functional (carboxylated) cellulose nanomaterials. Finally, I will briefly discuss our progress in producing lignin containing cellulose nanomaterials and lignin nanoparticles (LNP). Specifically, I will present a low temperature ( ≤ 80 °C) and low energy wood fractionation process for producing lignin CNF (LCNF) and LNP, rather than from chemical pulps, to substantially reduce production cost.