On the Nanoscale Mapping of the Mechanical and Piezoelectric Properties of Poly (L-Lactic Acid) Electrospun Nanofibers

被引:22
|
作者
Nguyen Thai Cuong [1 ,2 ]
Barrau, Sophie [2 ]
Dufay, Malo [2 ]
Tabary, Nicolas [2 ]
Da Costa, Antonio [3 ]
Ferri, Anthony [3 ]
Lazzaroni, Roberto [1 ]
Raquez, Jean-Marie [4 ]
Leclere, Philippe [1 ]
机构
[1] Univ Mons UMONS, Ctr Innovat & Res Mat & Polymers CIRMAP, Lab Chem Novel Mat, B-7000 Mons, Belgium
[2] Univ Lille, Unite Mat & Transformat UMET, CNRS, Sci & Technol,ENSCL,INRA,UMR 8207, F-59655 Villeneuve Dascq, France
[3] Univ Lille, Univ Artois, CNRS, Cent Lille,ENSCL,UMR 8181,UCCS, F-62300 Lens, France
[4] Univ Mons UMONS, Ctr Innovat & Res Mat & Polymers CIRMAP, Lab Polymer & Composite Mat, B-7000 Mons, Belgium
来源
APPLIED SCIENCES-BASEL | 2020年 / 10卷 / 02期
关键词
electrospinning; nanofibers; peakforce quantitative nanomechanical property mapping; piezoresponse force microscopy; intermodulation AFM; contact mechanics; poly (L-lactic acid); VIBRATIONAL ANALYSIS; TENSILE PROPERTIES; ALPHA-FORM; FIBERS; THIN; TEMPERATURE; MORPHOLOGY; CRYSTALS; ADHESION; BEHAVIOR;
D O I
10.3390/app10020652
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The effect of the post-annealing process on different properties of poly (L-lactic acid) (PLLA) nanofibers has been investigated in view of their use in energy-harvesting devices. Polymeric PLLA nanofibers were prepared by using electrospinning and then were thermally treated above their glass transition. A detailed comparison between as-spun (amorphous) and annealed (semi-crystalline) samples was performed in terms of the crystallinity, morphology and mechanical as well as piezoelectric properties using a multi-technique approach combining DSC, XRD, FTIR, and AFM measurements. A significant increase in the crystallinity of PLLA nanofibers has been observed after the post-annealing process, together with a major improvement of the mechanical and piezoelectric properties.
引用
收藏
页数:16
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