苎麻骨纤维素纳米晶结构色薄膜的制备研究

发布时间：2017-12-31 07:10

本文关键词：苎麻骨纤维素纳米晶结构色薄膜的制备研究　出处：《武汉纺织大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着环境问题的日益突出,世界各地积极投入对可再生能源的开发和利用。纤维素纳米晶薄膜特殊的理化性质,可以用在光学传感器件上。本文利用农林废弃物苎麻骨作为原料,建立了一条利用苎麻骨制备纤维素纳米晶结构色薄膜的工艺路线,可以有效的利用苎麻骨资源,带动种植地域的经济发展,解决各级政府和有关部门普遍关注的苎麻麻骨利用率低下、处理难等问题。本论文综述了苎麻麻骨、纤维素、纳米纤维素自组装结构色薄膜的研究概况.对苎麻麻骨纤维素和木质素的提取分离工艺、纳米晶纤维素的制备工艺及纳米晶纤维素结构色薄膜进行了如下研究:采用蒸汽爆破-碱法提取苎麻麻骨中的纤维素和木质素并分离,探讨了提取分离工艺条件(反应温度、反应时间、NaOH浓度)对粗纤维素产率的影响,并且对纤维素进行了红外分析和部分金属元素含量分析。用上述制得的纤维素制备了苎麻麻骨纤维素纳米晶,分别研究反应温度、反应时间、H2SO4浓度、液固比对纤维素纳米晶产率的影响,并且对制得的纤维素纳米晶进行了表征。以制备的纳米晶纤维素为原料,进行纳米晶纤维素自组装结构色薄膜,并对自组装工艺进行实验优化。
[Abstract]:With the increasingly prominent environmental problems, all over the world actively invested in the development and utilization of renewable energy. Cellulose nanocrystalline films have special physical and chemical properties. It can be used in optical sensing devices. In this paper, a process route of preparing cellulose nanocrystalline color film using Ramie bone as raw material was established. It can effectively utilize Ramie bone resources, promote the economic development of planting area, solve the problems of low utilization rate of Ramie bone and difficult to deal with, which are generally concerned by governments and relevant departments at all levels. This paper summarizes Ramie bone. Study on Self-assembled structure Color Film of Cellulose and Nano-Cellulose. Extraction and Separation of Ramie Bone Cellulose and lignin. The preparation process of nanocrystalline cellulose and the structure color film of nanocrystalline cellulose were studied as follows: extraction and separation of cellulose and lignin from Ramie bone by steam blasting-alkali method. The effects of extraction and separation conditions (reaction temperature, reaction time and NaOH concentration) on the yield of crude cellulose were discussed. The nano-crystal of Ramie bone cellulose was prepared from the cellulose, and the concentration of H _ 2SO _ 4 at reaction temperature and reaction time was studied. The effect of liquid-solid ratio on the yield of cellulose nanocrystalline and the characterization of the prepared nanocrystalline cellulose were carried out. The nanocrystalline cellulose self-assembled structured color film was prepared by using the prepared nanocrystalline cellulose as the raw material. The process of self-assembly was optimized.
【学位授予单位】：武汉纺织大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TB383.2;TQ352.79

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