期刊
JOURNAL OF APPLIED POLYMER SCIENCE
卷 137, 期 32, 页码 -出版社
WILEY
DOI: 10.1002/app.48939
关键词
biodegradable; biopolymers and renewable polymers; degradation
资金
- CRADA collaboration
In this study, the enhancement of the biodegradation rate of polylactic acid (PLA) filled with commercially available soil amendment product (NTM) or a nanoclay (Cloisite 25A) were evaluated. Cloisite 25A and NTM were incorporated into PLA at 5, 10, 20 (w/w) through melt blending. Transmission electron micrographs revealed particles with a wide range of sizes that were formed by clumping of many smaller particles. The particles showed good dispersion in PLA by scanning electron microscopy. Under standard composting conditions using a standard technique for aerobic biodegradation of plastic materials, it was shown that the addition of NTM enhanced the biodegradation rate of PLA composites by 3- to 4-fold compared to neat PLA. Linear kinetics were used to obtain induction periods, half-lives, and rates of mineralization. Finally, mechanical and thermomechanical properties of these blends were compared with PLA. Published 2020. This article is a U.S. Government work and is in the public domain in the USA. J. Appl. Polym. Sci. 2020, 137, 48939.
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