Abstract
The influence of elastomers—natural rubber (NR) and synthetic ethylene-propylene rubber (EPR)—on the morphology and physical and mechanical characteristics of composite materials based on polylactide (PLA) and poly-3-hydroxybutyrate (PHB), respectively, is studied. Differential scanning calorimetry shows differences in the patterns of changes in the thermophysical characteristics of the PLA—NR (with a rubber content of 5 to 15 wt %)—and PHB—synthetic EPR (10–30 wt %)—compositions. The melting point and the degree of crystallinity increase in the case of PLA and decrease in the experiment with PHB. The mechanical characteristics of the investigated compositions have similar dependences: with an increase in the content of rubbers, the relative elongation increases and the tensile strength and elastic modulus decrease.
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ACKNOWLEDGMENT
This study was carried out using the instruments of the Center for Collective Use of the Institute of Biochemical Physics, Russian Academy of Sciences “New materials and technologies” and the Center for Collective Use of Plekhanov Russian University of Economics, Moscow.
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Tertyshnaya, Y.V., Khvatov, A.V. & Popov, A.A. Mechanical Properties of Composites Based on Polylactide and Poly-3-Hydroxybutyrate with Rubbers. Russ. J. Phys. Chem. B 16, 162–166 (2022). https://doi.org/10.1134/S1990793122010304
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DOI: https://doi.org/10.1134/S1990793122010304