酸碱蒸煮法提取小麦秸杆纤维素的研究  

Study on Extraction of Wheat Straw Cellulose with Acid-base Cooking Method

作　　者：冯利 周宁川 张方萍 

机构地区：[1]成都市青白江区环境保护局,四川成都610300 [2]成都市城厢中学,四川成都610306

出　　处：《纤维素科学与技术》2015年第2期62-67,共6页Journal of Cellulose Science and Technology

摘　　要：以小麦秸秆作原料,比较了预处理方式如酸处理、酸碱蒸煮联合处理对小麦秸秆的影响。结果表明比较理想的预处理方式是酸处理(6%硝酸、4 h提取时间、100℃提取温度)和酸碱蒸煮(CNaOH(%)=5%、100℃、处理2 h)相结合。用SEM和FT-IR表征了处理前后小麦秸秆的微观形貌、化学结构等,说明了酸碱联合处理可以降低木质素的含量。Taking wheat straw as raw materials, the effect of pretreatment methods such as acid treatment and acid-alkali cooking on wheat straw was compared. The results showed that more satisfactory method was combing the pretreatment acid treatment （6% nitric acid, extraction time for 4 h, extraction temperature for 100℃） with acid-base cooking （CNaOH （%）-5%, at 100℃, treatment for 2 h）. The morphology and chemical structure was characterized by SEM and FT-IR in terms of wheat straw treated before and after. It could be indicated the content of the lignin might be lowered by acid-alkali cooking on wheat straw.

关 键 词：天然纤维素 小麦秸秆纤维素 酸碱蒸煮 研究 

分 类 号：O636.11[理学—高分子化学]