@Article{JFBI-13-51,
author = {Jiang , Ai-Yun and Pan , Zhi-Juan},
title = {Cross-sectional Porosity and Oil Sorption of PLA Nanofibers with Hollow and Lotus Root-like Structures},
journal = {Journal of Fiber Bioengineering and Informatics},
year = {2020},
volume = {13},
number = {1},
pages = {51--60},
abstract = {<p>Lotus root-like fibers and hollow structure fibers have been extensively studied in many different fields
due to a large specific surface area and high porosity. However, most of the prepared materials have
only one lotus root-like or hollow structure. Here, in this paper, the coaxial electrospinning poly(lactic
acid) (PLA) nanofibers had hollow and lotus root-like structures. The porosity of the cross section
was quantitatively analysed by MATLAB, and the oil sorption experiment was also carried out. In the
hollow structure, when the flow rate ratio of the core/shell solution was 1:2 or 1:4, the pore porosity
was about 41%, larger than 34.88% (1:3), while the pore porosity at 19-22 kV was stable at about 41%
± 2%. On the contrary, the lower the porosity, the better the spinning state and the higher the hollow
ratio. In the lotus root-like fibers, the porosity values were about 23% ± 2% under different spinning
conditions, which means that the lotus root-like porosity was not significantly affected by the flow rate
ratio of core/shell solution and voltage. Meanwhile, the absorption capacity of the lotus root-like fibers
to diesel oil is more than 1.5 times that of hollow fibers.</p>},
issn = {2617-8699},
doi = {https://doi.org/10.3993/jfbim00335},
url = {http://global-sci.org/intro/article_detail/jfbi/16246.html}
}