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采用激光加热熔体静电纺丝制备的竹炭/聚（L-丙交酯）纤维网

Bamboo Charcoal/Poly(L-lactide) Fiber Webs Prepared Using Laser-Heated Melt Electrospinning.

作者信息

Hou Zongzi, Itagaki Nahoko, Kobayashi Haruki, Tanaka Katsufumi, Takarada Wataru, Kikutani Takeshi, Takasaki Midori

机构信息

Doctoral Program of Materials Chemistry, Graduate School of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan.

Undergraduate Program of Materials Science, Faculty of Science and Technology, Kyoto Institute of Technology, Kyoto 606-8585, Japan.

出版信息

Polymers (Basel). 2021 Aug 18;13(16):2776. doi: 10.3390/polym13162776.

DOI:10.3390/polym13162776
PMID:34451314
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8401290/
Abstract

Although several studies have reported that the addition of bamboo charcoal (BC) to polylactide (PLA) enhances the properties of PLA, to date, no study has been reported on the fabrication of ultrafine BC/poly(L-lactide) (PLLA) webs via electrospinning. Therefore, ultrafine fiber webs of PLLA and BC/PLLA were prepared using PLLA and BC/PLLA raw fibers via a novel laser electrospinning method. Ultrafine PLLA and BC/PLLA fibers with average diameters of approximately 1 μm and coefficients of variation of 13-23 and 20-46% were obtained. Via wide-angle X-ray diffraction (WAXD) analysis, highly oriented crystals were detected in the raw fibers; however, WAXD patterns of both PLLA and BC/PLLA webs implied an amorphous structure of PLLA. Polarizing microscopy images revealed that the webs comprised ultrafine fibers with uniform diameters and wide variations in birefringence. Temperature-modulated differential scanning calorimetry measurements indicated that the degree of order of the crystals in the fibers was lower and the molecules in the fibers had higher mobilities than those in the raw fibers. Transmittance of BC/PLLA webs with an area density of 2.6 mg/cm suggested that the addition of BC improved UV-shielding efficiencies.

摘要

尽管多项研究报告称，在聚乳酸（PLA）中添加竹炭（BC）可增强PLA的性能，但迄今为止，尚未有关于通过静电纺丝制备超细BC/聚（L-乳酸）（PLLA）纤维网的研究报道。因此，采用新型激光静电纺丝法，使用PLLA和BC/PLLA原纤维制备了PLLA和BC/PLLA的超细纤维网。获得了平均直径约为1μm、变异系数为13-23%和20-46%的超细PLLA和BC/PLLA纤维。通过广角X射线衍射（WAXD）分析，在原纤维中检测到高度取向的晶体；然而，PLLA和BC/PLLA纤维网的WAXD图谱均表明PLLA为非晶结构。偏光显微镜图像显示，纤维网由直径均匀且双折射变化较大的超细纤维组成。温度调制差示扫描量热法测量表明，纤维中晶体的有序度较低，且纤维中的分子比原纤维中的分子具有更高的迁移率。面密度为2.6mg/cm的BC/PLLA纤维网的透光率表明，BC的添加提高了紫外线屏蔽效率。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/585c7cc1754c/polymers-13-02776-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/d489f47f1e49/polymers-13-02776-g001.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/95f86ce3b558/polymers-13-02776-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/718aa1cb5128/polymers-13-02776-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/d583fd5b3570/polymers-13-02776-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/5ec403cc4d24/polymers-13-02776-g006.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/a6c0d5a0abd5/polymers-13-02776-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/a76300ceac74/polymers-13-02776-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/e027c2b05e17/polymers-13-02776-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/93472e50f2f0/polymers-13-02776-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/3c31381401ce/polymers-13-02776-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/c52072ba04ef/polymers-13-02776-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/3f494db800a6/polymers-13-02776-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/a6ed62916f19/polymers-13-02776-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/585c7cc1754c/polymers-13-02776-g016.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/d489f47f1e49/polymers-13-02776-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/7d2e610609a0/polymers-13-02776-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/95f86ce3b558/polymers-13-02776-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/718aa1cb5128/polymers-13-02776-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/d583fd5b3570/polymers-13-02776-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/5ec403cc4d24/polymers-13-02776-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/989fc5c1574d/polymers-13-02776-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/a6c0d5a0abd5/polymers-13-02776-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/a76300ceac74/polymers-13-02776-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/e027c2b05e17/polymers-13-02776-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/93472e50f2f0/polymers-13-02776-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/3c31381401ce/polymers-13-02776-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/c52072ba04ef/polymers-13-02776-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/3f494db800a6/polymers-13-02776-g014.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/a6ed62916f19/polymers-13-02776-g015.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/206d/8401290/585c7cc1754c/polymers-13-02776-g016.jpg

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[1]
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[2]
Detailed Process Analysis of Biobased Polybutylene Succinate Microfibers Produced by Laboratory-Scale Melt Electrospinning.

Polymers (Basel). 2021-3-26

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Structure and Properties of Poly(ethylene terephthalate) Fiber Webs Prepared via Laser-Electrospinning and Subsequent Annealing Processes.

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The Effect of Dye and Pigment Concentrations on the Diameter of Melt-Electrospun Polylactic Acid Fibers.

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