CHANGING THE STRUCTURE OF BIODDEGRADATION POLYMERS UNDER THE INFLUENCE OF AGGRESSIVE ENVIRONMENTAL FACTORS
https://doi.org/10.31143/2221-7789-2023-3-119-124
EDN: DSFQWK
Abstract
Currently, biodegradable polymers are playing an increasingly important role in order to improve the environmental situation. Of these, polylactide (PLA) is considered as one of the most promising biodegradable plastics. Due to the peculiarities of this polymer, in particular its fragility, researchers are developing polymer compositions with the addition of plasticizing polymers, such a component can be polybutyleneadipateterephthalate (PBAT). After exposure to UV radiation with a wavelength of 254 nm for 100 hours on a mix- ture of PLA/PBAT found that due to the susceptibility of PLA to UV radiation, the destruction of the material occurs mainly in the polylactide matrix, while the thermophysical characteristics decrease. The diffractograms of the samples show reflexes characteristic of the crystalline α-form of polylactide. After ultraviolet irradiation, the intensity of reflexes decreases in 100PLA and in a blend of 70PLA / 30PBAT, which indicates the destruc- tion of the crystal structure of the polylactide.
About the Authors
L. Yu. Yakubova
G.V. Plekhanov Russian University of Economics
Russian Federation
Russian Federation
L. D. Selezneva
G.V. Plekhanov Russian University of Economics
Russian Federation
Russian Federation
A. O. Dmitrienko
G.V. Plekhanov Russian University of Economics
Russian Federation
Russian Federation
M. V. Podzorova
G.V. Plekhanov Russian University of Economics
Russian Federation
Russian Federation
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Review
For citations:
Yakubova L.Yu., Selezneva L.D., Dmitrienko A.O., Podzorova M.V. CHANGING THE STRUCTURE OF BIODDEGRADATION POLYMERS UNDER THE INFLUENCE OF AGGRESSIVE ENVIRONMENTAL FACTORS. Proceedings of the Kabardino-Balkarian State University. 2023;13(3):119-124. (In Russ.) https://doi.org/10.31143/2221-7789-2023-3-119-124. EDN: DSFQWK
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