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The melting and glass transition temperatures in PLA/NR composites decreased, and in PLA fibers, these values increased marginally. TGA studies in an argon environment reported the effect of NR on PLA/NR fiber degradation. In comparison to the initial samples, there was a decrease in the correlation time of the probe-radical. Due to soil microorganism biodegradation, there was a decrease in the intensity of the bands corresponding to the PLA matrix and the emergence of N-H C-N groups in PLA/NR fibrous substrates.
Source link: https://europepmc.org/article/MED/35267881
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