Comparative studies of thermo-mechanical and morphological properties of polylactic acid/fumed silica/clay (1.28E) and polylactic acid/fumed silica/clay (1.34TCN) nanocomposites

In this study, nanocomposites were prepared using polylactic acid (PLA), fumed silica (fsi) and nanoclay through solution-intercalation film-casting technique. Thermo-mechanical and morphological properties of developed nanocomposites were successively characterized by scanning electron microscopy (...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2018, Vol.75 (1), p.135-147
Main Authors: Lai, Josephine Chang Hui, Rahman, Md. Rezaur, Hamdan, Sinin
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Clay
Comparative studies
Complex Fluids and Microfluidics
Interfacial bonding
Mechanical properties
Morphology
Nanocomposites
Organic Chemistry
Original Paper
Particle size
Physical Chemistry
Polylactic acid
Polymer Sciences
Polymerization
Polymers
Scanning electron microscopy
Silica fume
Soft and Granular Matter
Tensile strength
Tensile tests
Thermal stability
Thermogravimetric analysis
Thermomechanical properties
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Summary:In this study, nanocomposites were prepared using polylactic acid (PLA), fumed silica (fsi) and nanoclay through solution-intercalation film-casting technique. Thermo-mechanical and morphological properties of developed nanocomposites were successively characterized by scanning electron microscopy (SEM) analysis, tensile test and thermogravimetric analysis (TGA). Throughout the findings, it proved that 2 wt% of clays was the optimum filler loading compared to 5 and 10 wt% in the PLA-fsi-clay nanocomposites. Furthermore, among the clays used, clay (1.28E) showed the better performance compared to clay (1.34TCN) to be introduced in the nanocomposites. The incorporation of 2 wt% of clay (1.28E) showed the best compatibility with PLA-fsi matrix with smooth surface. Besides, 2 wt% of PLA-fsi-clay (1.28E) nanocomposite showed the highest tensile strength and modulus. TGA result showed that 2 wt% of clays especially clay (1.28E) had the highest thermal stability. Both clay and fumed silica were well intercalated with PLA matrix enhanced the thermo-mechanical and morphological properties of the nanocomposites.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-017-2025-z