Effect of Nanoclay Hydrophilicity on the Poly(lactic acid)/Clay Nanocomposites Properties
| Autor: | Elena Pâslaru, Apostolos Baklavaridis, Gina M. Pricope, Anamaria Sdrobiş, Raluca Nicoleta Darie, Gabriela Hitruc, Cornelia Vasile, Antoniea Poiată |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
Nanocomposite Scanning electron microscope General Chemical Engineering General Chemistry Industrial and Manufacturing Engineering Lactic acid Contact angle chemistry.chemical_compound Chemical engineering Rheology chemistry Permeability (electromagnetism) Fourier transform infrared spectroscopy Clay minerals |
| Zdroj: | Industrial & Engineering Chemistry Research. 53:7877-7890 |
| ISSN: | 1520-5045 0888-5885 |
| Popis: | In order to improve poly(lactic acid) (PLA) mechanical, thermal, and barrier properties, different layered silicate nanoclays are added. This work deals with the study of the effect of the type of nanoclays with different hydrophilicity on the preparation procedure and properties of PLA nanocomposites. Six kinds of clays have been loaded in PLA whose hydrophilicity varies in the following order of increased hydrophilicity: modified Dellite 67G (67G) < Cloisite 15A (C15A) < C20A < C93A < C30B < hydrophilic smectite clay (HPS). Resultant nanocomposites have been characterized both with respect to bulk and surface properties by mechanical, rheological, thermal analyses, X-ray diffraction study, Fourier transform infrared spectroscopy, gas permeability tests, contact angle measurements, scanning electron microscopy, and atomic force microscopy. Antimicrobial properties have been also tested. Evidenced was the dependence of most properties on the hydrophilicity/hydrophobicity of the clays. The nanocomposites c... |
| Databáze: | OpenAIRE |
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