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[Variations in IR spectra of three coating materials under outdoor illumination and pot incubation].

Authors
  • Liu, Xing-Bin
  • Chen, Li-Jun
  • Wu, Zhi-Jie
  • Wang, Yue
  • Zhang, Yu-Lan
  • Li, Dong-Po
Type
Published Article
Journal
Guang pu xue yu guang pu fen xi = Guang pu
Publication Date
Feb 01, 2010
Volume
30
Issue
2
Pages
323–326
Identifiers
PMID: 20384116
Source
Medline
License
Unknown

Abstract

In the present paper, polylactic acid (PLA), poly (butylenes succinate) (PBS) and polycarbonate (PC) were selected as test coating materials, and the variations in their IR spectra under conditions of outdoor illumination and pot incubation were studied, aimed to approach the degradability of these coating materials under sunlight and in soil. The IR spectra showed that after 4 months under outdoor illumination and pot incubation with brown soil and black soil, all the test coating materials had definite variations in their structural configuration, being more obvious under pot incubation than under outdoor illumination, which suggested that the test materials were degradable, and the degradability was greater in soil than under sunlight. PC had the greatest degradability, followed by PLA, and PBS. The degradability of PLA and PC was greater in black soil than in brown soil, while that of PBS was reverse.

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