Journal
HIGH ENERGY CHEMISTRY
Volume 56, Issue 2, Pages 138-144Publisher
MAIK NAUKA/INTERPERIODICA/SPRINGER
DOI: 10.1134/S0018143922020096
Keywords
polylactide; polycaprolactone; laser radiation; nonwovens; morphology
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Funding
- Russian Foundation for Basic Research [18-29-17050, 18-32-20184]
- Ministry of Science and Higher Education through the Crystallography and Photonics Federal Research Center
- Enikolopov Institute of Synthetic Polymer Materials
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The influence of mid-IR laser radiation on the morphology of polylactide and polycaprolactone nonwoven materials obtained by electrospinning has been studied. It has been found that laser irradiation can achieve local structuring of the nonwoven materials, including fusing fibers together, straightening them, and creating breaks. The influence of laser irradiation parameters and additional wetting on the structure of the nonwovens has also been determined.
The influence of mid-IR (1.94 mu m) laser radiation on the morphology of polylactide and polycaprolactone nonwoven materials obtained by electrospinning has been revealed. It has been shown that laser irradiation makes it possible to achieve local structuring of the nonwovens at the micrometer level, in particular, to fuse individual fibers, straighten them between fusion points, and prepare monolithic films from the materials or, conversely, create breaks in them. The influence of laser irradiation parameters (power, laser spot speed, scan line density) and additional wetting of the samples on the structure of the nonwovens has been determined.
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