Development of highly oil-absorbent polylactic-acid microfibers with a nanoporous structure via simple one-step centrifugal spinning

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外文摘要：In recent years, the development of porous materials with excellent reactivity and absorption properties has attracted significant attention. We fabricated poly(lactic acid) (PLA) microfibers with uniform nanopores via a one-step rotary centrifugal spinning method using a PLA/chloroform solution. To evaluate the solvent stability of the nanoporous microfibers, vapor annealing was performed with three different organic solvents, and the structural changes and oil adsorption abilities of the nanoporous PLA fibers before and after solvent vapor annealing were systematically evaluated. The results showed that acetone or ethanol vapor annealing induced internal structural changes in the nanoporous PLA microfibers, but did not affect the nanoporous structure. Furthermore, we demonstrated that the nanoporous PLA fibers fabricated in this study had a high oil absorption capacity of up to 26.78 g/g, and that the acetone or ethanol vapor annealed fibers could maintain almost the same absorption capacity. Therefore, the nanoporous PLA fibers prepared using the proposed one-step centrifugal spinning method have a high potential as environmentally friendly biodegradable filters or high-absorption materials.

外文关键词：

CentrifugationPorous stabilitySolvent vapor annealingOil absorption

作者：

Linmei Zhang、Chieko Narita、Yuki Himeda

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作者单位：

Department of Advanced Fibro-Science, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan

Faculty of Cultural Studies, Kyoto Sangyo University, Motoyama, Kamigamo, Kita-ku, Kyoto 603-8555, Japan

Analysis Research Center, KRI Inc., Konohana-ku, Osaka 554-0051, Japan

出版年：

2022

DOI：

10.1016/j.seppur.2021.120156

Separation and Purification Technology

EISCI

ISSN：1383-5866

年,卷(期)：2022.282PB

被引量9
参考文献量62