首页|香蒲叶综纤维素纳米纤维的制备及表征

香蒲叶综纤维素纳米纤维的制备及表征

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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.
Preparation and characterization of holocellulose nanofibers of Cattail leaves
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.

Cattail leafholocellulosenanofiberhydrogen peroxide-acetic acidacid hydrolysis

吴雨阳、王天骄、李丽琼、孙宇驰、蒋逸萱、徐子博、曹新旺

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武汉纺织大学 纺织科学与工程学院, 湖北 武汉 430200

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

香蒲叶 综纤维素 纳米纤维 过氧化氢-乙酸 酸水解

国家自然科学基金青年基金湖北省自然科学基金国家级大学生创新创业训练计划湖北省技术创新专项湖北省大学生创新训练项目生物质纤维与生态染整湖北省重点实验室开放基金

515031622016CFB4592019104950142019AAA005S201910495063STRZ202316

2024

产业用纺织品
东华大学,全国产业用纺织品科技情报站

产业用纺织品

影响因子：0.309
ISSN：1004-7093
年,卷(期)：2024.42(3)
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