Open AccessImpact of environmental factors on agrofibers based on “green” polymers
Author(s) -
Yu. V. Tertyshnaya,
A. A. Olkhov,
Н. С. Левина,
Irina Bidey,
Maksim Moskovskiy
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/921/1/012026
Subject(s) - polylactic acid , crystallinity , differential scanning calorimetry , degradation (telecommunications) , scanning electron microscope , materials science , polymer , hydrolysis , chemical engineering , degree (music) , composite material , chemistry , organic chemistry , telecommunications , physics , computer science , acoustics , engineering , thermodynamics
Influence of different environmental factors on the degradation of fibrous samples based on polylactic acid and poly-3-hydroxybuturate was studied in this work. The article presents data obtained by differential scanning calorimetry (DSC), scanning electron microscopy (SEM). The hydrolytic degradation of nonwoven fibers, degradation in soil and under UV light were investigated. It was found that the degree of degradation of the material obtained from the 5% PHB solution was higher than from 7 and 9 %. It was shown that after 60 days of soil exposure, the samples of nonwoven fibers PLA and PLA-PHB collapsed into fragments and melting temperature of both samples was reduced by 11-12 °C. The degree of crystallinity also significantly decreased.