期刊
MATERIALS
卷 14, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/ma14112835
关键词
graphite; diamond; polylactide; nanocomposite; electrical properties; electrical conductivity
类别
资金
- Silesian University of Technology [04/020/RGJ21/1019]
- National Science Centre [2019/33/B/ST5/01412]
- Rzeszow University of Technology [PB27.FE.21.001]
By blending graphite/diamond particles with varying ash content with polylactide, new electroconductive nanocomposites were prepared, showing significant improvements in electrical conductivity and permittivity. The study indicated that fillers with higher ash content were more beneficial in terms of nanofiller dispersibility and overall properties.
Two types of graphite/diamond (GD) particles with different ash content was applied to prepare new electroconductive polylactide (PLA)-based nanocomposites. Four samples of nanocomposites for each type of GD particles with mass fraction 0.01, 0.05, 0.10, and 0.15 were prepared via an easily scalable method-melt blending. The samples were subjected to the studies of electrical properties via broadband dielectric spectroscopy. The results indicated up to eight orders of magnitude improvement in the electrical conductivity and electrical permittivity of the most loaded nanocomposites, in reference to the neat PLA. Additionally, the influence of ash content on the electrical conductivity of the nanocomposites revealed that technologically less-demanding fillers, i.e., of higher ash content, were the most beneficial in the light of nanofiller dispersibility and the final properties.
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