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The Influence of Microstructure in PHB Non‐Woven Materials on Mechanical Behavior Under Tension
Author(s) -
Morokov Egor,
Zykova Anna,
Tyubaeva Polina
Publication year - 2021
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.202000245
Subject(s) - ultimate tensile strength , materials science , microstructure , elongation , composite material , molding (decorative) , porosity , tensile testing , optical microscope , fiber , scanning electron microscope
This work focuses on the study of mechanical behavior of non‐woven scaffolds under tensile. The results are obtained in poly(3‐hydroxybutyrate) (PHB) scaffolds prepared by two technological approaches and various PHB concentration in molding solutions. The technological solutions provide electrospun fibrous structures with various fiber morphologies, which cause significant differences in the physico‐mechanical properties of non‐woven materials. Tensile strength of produced PHB scaffolds with different porosity and geometry of fibrous layer is in the range of 0.1 to 1.3 MPa and elongation at break from 3% to 9%. To visualize the evolution of the microstructure during tensile, optic microscopy and high‐frequency acoustic microscopy are applied.