专题论文

超疏水磁性纤维素粒子的制备及性能表征

  • 黄六莲 ,
  • 林新兴 ,
  • 周兴满 ,
  • 吴慧 ,
  • 曹石林 ,
  • 陈礼辉
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  • 福建农林大学材料学院, 福州 350002
黄六莲,教授,研究方向为清洁制浆技术及生物质功能化利用,电子信箱:hll65212@163.com

收稿日期: 2015-12-14

  修回日期: 2016-01-22

  网络出版日期: 2016-10-21

基金资助

福建省产业技术联合创新项目;国家自然科学基金项目(31470598)

Fabrication and properties of superhydrophobic magnetic cellulosebased particles

  • HUANG Liulian ,
  • LIN Xinxing ,
  • ZHOU Xingman ,
  • WU Hui ,
  • CAO Shilin ,
  • CHEN Lihui
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  • College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China

Received date: 2015-12-14

  Revised date: 2016-01-22

  Online published: 2016-10-21

摘要

采用纤维素为原料,制备了超疏水磁性纤维素粒子。竹溶解浆用氢氧化钠/尿素/水体系溶解,在水中再生形成纤维素粒子。再采用原位沉淀法制得磁性纤维素粒子,正十八烷基三甲基硅烷修饰后得到超疏水磁性纤维素粒子。用扫描电镜(SEM)、傅里叶红外光谱仪(FT-IR)、热失重分析仪(TG)和液滴形状分析仪(CA)对改性纤维素粒子的形貌、化学结构、热稳定性和超疏水性进行了分析。改性纤维素粒子表现出超疏水性能和磁响应性能,水接触角达到151.2°。改性纤维素粒子可以包裹水滴和甘油形成液体弹珠。

本文引用格式

黄六莲 , 林新兴 , 周兴满 , 吴慧 , 曹石林 , 陈礼辉 . 超疏水磁性纤维素粒子的制备及性能表征[J]. 科技导报, 2016 , 34(19) : 50 -53 . DOI: 10.3981/j.issn.1000-7857.2016.19.007

Abstract

This paper presents the preparation of superhydrophobic magnetic cellulose-based particles by using the cellulose as the raw material. The bamboo pulp is dissolved by the NaOH/urea aqueous solution, and the cellulose particles are regenerated in the water. The superhydrophobic magnetic cellulose particles are obtained by modifying the magnetic cellulose particles with the noctadecyltrimethoxysilane(ODTMS). The morphology, the chemical structure and the thermal stability of the modified cellulose particles are analyzed by the scanning electron microscopy(SEM), the Fourier transform infrared spectroscopy(FT-IR) and the thermogravimetry(TG), respectively. The modified-cellulose particles are superhydrophobic and magnetically responsive. Its water contact angle is 151.2°. The modified-cellulose particles can encapsulate the water and the glycerol droplets to form stable liquid marbles.

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