废棉纤维纳米纤维素晶须制备及其表征  

Preparation and Characterization of NanocelluloseCrystal from Waste Cotton Fiber

作　　者：侯茉晗 王丽芳 张学澎 张磊 白云 刘丽芳[1,2] HOU Mo-han;WANG Li-fang;ZHANG Xue-peng;ZHANG Lei;BAI Yun;LIU Li-fang(College of Textiles,Donghua University,Shanghai 201620;Yuyue Home Textile Co.,Ltd.,Binzhou 256600)

机构地区：[1]东华大学纺织学院,上海201620 [2]愉悦家纺有限公司,山东滨州256600

出　　处：《纺织科学与工程学报》2024年第2期32-36,共5页Journal of Textile Science & Engineering

基　　金：山东省“泰山产业领军人才”计划项目(tscx202306163)。

摘　　要：为实现废弃资源的高值化回用,以棉坯布磨毛整理过程中产生的废棉纤维为原料,通过去离子水洗涤、异丙醇处理除去废棉纤维表面的杂质,再经过氧化氢处理和硫酸水解,成功提取出纳米纤维素晶须(SCNCs)。测试结果表明,所提取的纳米纤维素晶须呈短棒状,长度为100 nm~400 nm,直径为10 nm~25 nm,晶型为Ⅰ型,结晶度达85.17%。此外,热重分析得出纳米纤维素晶须的初始分解温度为303℃,在600℃下的残留率为25.448%。In order to achieve high-value reuse of waste resources,the waste cotton fibers generated during the grinding process of cotton fabric was used as raw materials,the impurities on the surface of the waste cotton fibers were removed through deionized water washing and isopropanol treatment,and then hydrogen peroxide treatment and sulphuric acid hydrolysis were carried out to successfully extract nanocellulose crystals(SCNCs).The test results show that the extracted nanocellulose crystals are short rod-shaped with a length of 100-400nm and a diameter of 10-25nm.Its crystal form is Type I with a crystallinity of 85.17%.In addition,the initial de-composition temperature of SCNCs is 303℃,and the residual rate is 25.44848%at 600℃.

关 键 词：废棉纤维 过氧化氢处理 硫酸水解 纳米纤维素晶须 

分 类 号：TS102.211[轻工技术与工程—纺织工程] TB383[轻工技术与工程—纺织科学与工程]