LiCl/DMSO溶剂体系中麦草溶解性能的评价方法  

Evaluation Method of Solubility of Wheat Straw in LiCl/DMSO Solvent

作　　者：杨艳 任浩 翟华敏 YANG Yan, REN Hao, ZHAI Huamin(College of Light Indust,T and Food Engineering, NanJing Forest,T University, Nanjing 210037, China)

机构地区：[1]南京林业大学轻工与食品学院,江苏南京210037

出　　处：《林产化学与工业》2018年第4期9-12,共4页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目(31070524)

摘　　要：为解决木质纤维生物质在溶剂体系中的溶解性能的定量问题,以麦草纤维为原料,探讨了不同球磨时间对其在LiC l/DMSO溶剂体系中溶解性能的影响,并分别使用目视比色法、光学显微镜法、浊度法评价麦草试样的溶解性能。通过对比发现,评价木质纤维试样在8%LiC l/DMSO中的溶解性能时,与目视比色法和光学显微镜法比较,浊度法具有精准、简便和量化的优点。浊度法可用于木质纤维生物质在预处理和生物炼制等过程的溶解性能的评价。In order to solve the quantitative problem of the solubility of lignocellulosic biomass in the solvent system, wheat straw was studied as raw material for a ball milling time on its dissolution behavior in the LiCl/DMSO system. The dissolution performance was evaluated by visual method, optical microscopy and turbidity method respectively. By comparison of visual colorimetry method and the optical microscopy method at the condition of wheat straw dissolved in 8% LiCl/DMSO, it was found that the turbidimetric method is accurate, simple and quantitative. The turbidimetric method can be used to evaluate the dissolution behavior of lignocellulosic biomass during pretreatment and refining.

关 键 词：溶剂体系 目视比色法 光学显微镜 浊度法 木质纤维生物质 

分 类 号：TQ35[化学工程]