韩晓玉, 陶振菲^a, 王运利

（武汉纺织大学 a. 化学与化工学院,b. 生物质纤维和生态染整湖北省重点实验室,c. 省部共建纺织新材料与先进加工技术国家重点实验室, 湖北 武汉 430200）

引用格式：韩晓玉, 陶振菲, 王运利. 硬脂酸钠改性丝素粉体及其在油水分离中的应用[J]. 中国粉体技术, 2023, 29(4): 130-137.

HAN X Y, TAO Z F, WANG Y L. Application of sodium stearate modified silk powder in oil-water separation[J]. China Powder Science and Technology, 2023, 29(4): 130-137.

DOI：10.13732/j.issn.1008-5548.2023.04.013

收稿日期：2022-09-01，修回日期：2022-12-31，在线出版时间：2023-06-13 17:06。

基金项目：湖北省中央引导地方科技发展专项基金项目,编号:2020ZYYD038;湖北省重点研发计划项目,编号:2021BAA068。

第一作者简介：韩晓玉(1997—),女,硕士研究生,研究方向为丝素粉体改性。E-mail: 3026968989@qq.com。

通信作者简介：王运利(1979—),男,教授,博士,研究方向为纺织品新型染整技术。E-mail: ylwang@wtu.edu.cn。

摘要：随着工业化进程的不断加快，水污染问题日益严重，其中由油泄漏引起的污染严重破坏海洋生态环境，因此如何环保且高效的进行油水分离是现今研究热点之一。采用硬脂酸钠对丝素粉体进行改性，探究硬脂酸钠的用量、反应时间等参数对改性效果的影响；采用一系列表征方法对改性前、后丝素粉体的微观形貌和结构进行表征，在此基础上探究其在油水分离中的应用。结果表明：改性丝素粉体比原粉的油水分离效果更好，改性后丝素粉体的吸油量为2.224 3 g/g,比改性前提高35%。在吸附油脂后，改性丝素粉体会团聚成小球浮于水面，便于后续分离。

关键词：丝素粉体; 硬脂酸钠; 油水分离; 吸油量; 疏水性

Abstract：As industrialisation continues to accelerate, the problem of water pollution is becoming increasingly serious, with pollution caused by oil spills seriously damaging the marine ecosystem. Therefore, it is one of the hot research topics nowadays to find out how to separate oil and water in an environmentally friendly and efficient way. Sodium stearate was used to modify the silk powder, and the effects of parameters such as the amount of sodium stearate and reaction time on the modification effect were investigated. At the same time, a series of measurements were used to characterize the microscopic morphology and structure of the silk powder before and after modification, and on this basis, the application in oil-water separation was explored. The results show that the modified silk powder has better oil-water separation effect than the original powder, and the oil absorption of the modified silk powder is 2.224 3 g/g, which is 35% higher than that before modification. After adsorption of oil, the modified silk powder will agglomerate into small balls and float on the water surface, facilitating subsequent separation.

Keywords：silk powder; sodium stearate; oil-water separation; oil absorption; hydrophobicity

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