@article{2b3ebf357cae41a697c12a1ab6a4d426,
title = " Nanocomposite of poly(L-lactic acid) with inorganic nanotubes of WS 2 ",
abstract = " Composites of poly(L-lactic acid) (PLLA) reinforced by adding inorganic nanotubes of tungsten disulfide (INT-WS 2 ) were prepared by solvent casting. In addition to the pristine nanotubes, PLLA nanocomposites containing surface modified nanotubes were studied as well. Several surface-active agents, including polyethylene imine (PEI),were studied in this context. In addition, other biocompatible polymers, like poly D,L-lactic acid (PDLLA) and others were considered in combination with the INT-WS 2 . The nanotubes were added to the polymer in different proportions up to 3 wt %. The dispersion of the nanotubes in the nanocomposites were analyzed by several techniques, including X-ray tomography microscopy (Micro-XCT). Moreover, high-temperature rheological measurements of the molten polymer were conducted. In contrast to other nanoparticles, which lead to a considerable increase of the viscosity of the molten polymer, the WS 2 nanotubes did not affect the viscosity significantly. They did not affect the complex viscosity of the molten PLLA phase, either. The mechanical and tribological properties of the nanocomposites were found to improve considerably by adding the nanotubes. A direct correlation was observed between the dispersion of the nanotubes in the polymer matrix and its mechanical properties.",
keywords = "Inorganic nanotubes, PLLA, Solid lubricants",
author = "Hila Shalom and Sui, {Xiao Meng} and Olga Elianov and Vlad Brumfeld and Rita Rosentsveig and Iddo Pinkas and Yishay Feldman and Nir Kampf and Wagner, {H. D.} and Noa Lachman and Reshef Tenne",
note = "Publisher Copyright: {\textcopyright} 2019 by the authors.",
year = "2019",
doi = "10.3390/lubricants7030028",
language = "אנגלית",
volume = "7",
journal = "Lubricants",
issn = "2075-4442",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "3",
}