香蒲叶综纤维素纳米纤维的制备及表征  

Preparation and characterization of holocellulose nanofibers of Cattail leaves

作　　者：吴雨阳 王天骄 李丽琼 孙宇驰 蒋逸萱 徐子博 曹新旺 Wu Yuyang;Wang Tianjiao;Li Liqiong;Sun Yuchi;Jiang Yixuan;Xu Zibo;Cao Xinwang(College of Textiles Science and Engineering,Wuhan Textile University,Wuhan 430200,Hubei,China;Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing&Finishing,Wuhan Textile University,Wuhan 430200,Hubei,China)

机构地区：[1]武汉纺织大学纺织科学与工程学院,湖北武汉430200 [2]武汉纺织大学生物质纤维与生态染整湖北省重点实验室,湖北武汉430200

出　　处：《产业用纺织品》2024年第3期38-43,共6页Technical Textiles

基　　金：国家自然科学基金青年基金(51503162);湖北省自然科学基金(2016CFB459);国家大学生创新训练计划项目(201910495014);湖北省技术创新专项(2019AAA005);湖北省大学生创新训练计划项目(S201910495063);生物质纤维与生态染整湖北省重点实验室开放课题(STRZ202316)。

摘　　要：为深化对香蒲叶的综合利用,提高其附加值,采用过氧化氢-乙酸(HPAA)预处理与酸水解法制备香蒲叶综纤维素纳米纤维,分析对比HPAA处理得到的香蒲叶综纤维素纤维和酸水解分离得到的综纤维素纳米纤维以及香蒲叶原样三者之间的物理化学性质及结构。结果表明:综纤维素纤维中木质素残余质量分数为1.32%,单根纤维充分暴露,且由于去除了木质素及其他小分子物质,结晶度提高至57.47%,热稳定性高于原样。制备的纳米纤维呈细长形,分子链上引入了功能化的羧基基团,热稳定性良好。To deepen the comprehensive utilization of Cattail leaves and improve their added value,the holocellulose nanofibers of Cattail leaves were prepared by using hydrogen peroxide-acetic acid(HPAA)treatment and acid hydrolysis.The physicochemical properties and structures of the holocellulose fibers prepared by HPAA treatment,nanofibers treated by acid hydrolysis separation,and original Cattail leaves samples were analyzed and compared.The results showed that the residual lignin mass fraction in holocellulose fibers was 1.32%,with individual fiber fully exposed.Due to the removal of lignin and other small molecules,the crystallinity increased to 57.47%,and the thermal stability was higher than that of the original samples.The prepared nanofibers exhibited a slender shape with functionalized carboxyl groups on the molecular chain,resulting in good thermal stability.

关 键 词：香蒲叶 综纤维素 纳米纤维 过氧化氢-乙酸 酸水解 

分 类 号：TS121[轻工技术与工程—纺织材料与纺织品设计]