Тип публикации: статья из журнала

Год издания: 2022

Идентификатор DOI: 10.3390/ma15176097

Ключевые слова: aluminum oxide nanofibers, composite, film, percolation threshold, polylactide, thermal and mechanical properties

Аннотация: To find out whether Al2O3 nanofiller is effective in improving the characteristics of polymer composites, composite polymer films based on biodegradable polylactide and epoxidized aluminum oxide nanofibers were obtained by solution casting. Surface morphology, mechanical and thermal properties of composites were studied by SEM, IR-Показать полностьюFourier spectroscopy, DSC and DMA. It was shown that, below and above the percolation threshold, the properties of the films differ significantly. The inclusion of alumina nanoparticles up to 0.2% leads to a plasticizing effect, a decrease in the crystallization temperature and the melting enthalpy and an increase in the tensile stress. An increase in the content of alumina nanoparticles in films above the percolation threshold (0.5%) leads to a decrease in the crystallinity of the films, an increase in stiffness and a drop in elasticity. Finding the percolation threshold of alumina nanoparticles in PLA films makes it possible to control their properties and create materials for various applications. The results of this study may have major significance for the commercial use of aluminum oxide nanofibers and can broaden the research field of composites. © 2022 by the authors.

Журнал: Materials

Выпуск журнала: Vol. 15, Is. 17

Номера страниц: 6097

ISSN журнала: 19961944

Издатель: MDPI

• Sukhanova A. (Scientific Laboratory “Smart Materials and Structures”, Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarsky Rabochy Av, Krasnoyarsk, 660037, Russian Federation)
• Boyandin A. (Scientific Laboratory “Smart Materials and Structures”, Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarsky Rabochy Av, Krasnoyarsk, 660037, Russian Federation, Institute of Biophysics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation)
• Ertiletskaya N. (Scientific Laboratory “Smart Materials and Structures”, Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarsky Rabochy Av, Krasnoyarsk, 660037, Russian Federation, Institute of Biophysics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation)
• Simunin M. (Scientific Laboratory “Smart Materials and Structures”, Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarsky Rabochy Av, Krasnoyarsk, 660037, Russian Federation, Department of Molecular Electronics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation)
• Shalygina T. (Scientific Laboratory “Smart Materials and Structures”, Reshetnev Siberian State University of Science and Technology, 31 Krasnoyarsky Rabochy Av, Krasnoyarsk, 660037, Russian Federation)
• Voronin A. (Department of Molecular Electronics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation, School of Engineering and Construction, Siberian Federal University, 82K Svobodnyi Av, Krasnoyarsk, 660041, Russian Federation)
• Vasiliev A. (Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/38 Akademgorodok, Krasnoyarsk, 660036, Russian Federation, Institute of Engineering Physics and Radio Electronics, Siberian Federal University, 79 Svobodnyi Av, Krasnoyarsk, 660041, Russian Federation)
• Nemtsev I. (Department of Molecular Electronics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation, Insitute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodnyi Av, Krasnoyarsk, 660041, Russian Federation)
• Volochaev M. (Kirensky Institute of Physics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50/38 Akademgorodok, Krasnoyarsk, 660036, Russian Federation)
• Pyatina S. (Department of Molecular Electronics, Federal Research Center “Krasnoyarsk Science Center SB RAS”, 50 Akademgorodok, Krasnoyarsk, 660036, Russian Federation, Insitute of Fundamental Biology and Biotechnology, Siberian Federal University, 79 Svobodnyi Av, Krasnoyarsk, 660041, Russian Federation)

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