Preparation and Characterization of Polystyrene Hybrid Composites Reinforced with 2D and 3D Inorganic Fillers
| Autor: | Michael A. Karakassides, Maria Baikousi, Dimitrios Gournis, Konstantinos S. Triantafyllidis, Panagiotis I. Xidas, Aris Giannakas, Athanasios K. Ladavos, Dimitrios Giliopoulos |
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| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Thermogravimetric analysis Nanocomposite Computer science microcomposites organoclay 02 engineering and technology General Medicine Polymer polystyrene 010402 general chemistry 021001 nanoscience & nanotechnology mesoporous silicas 01 natural sciences 0104 chemical sciences chemistry.chemical_compound chemistry Compounding nanocomposites Organoclay Thermal stability Polystyrene Composite material 0210 nano-technology Mesoporous material |
| Zdroj: | Micro Volume 1 Issue 1 Pages 2-14 |
| ISSN: | 2673-8023 |
| Popis: | Polystyrene (PS)/silicate composites were prepared with the addition of two organoclays (orgMMT and orgZenith) and two mesoporous silicas (SBA-15 and MCF) via (i) solution casting and (ii) melt compounding methods. X-ray diffraction (XRD) analysis evidenced an intercalated structure for PS/organoclay nanocomposites. Thermogravimetric analysis indicated improvement in the thermal stability of PS-nanocomposites compared to the pristine polymer. This enhancement was more prevalent for the nanocomposites prepared with a lab-made organoclay (orgZenith). Tensile measurement results indicated that elastic modulus increment was more prevalent (up to 50%) for microcomposites prepared using mesoporous silicas as filler. Organoclay addition led to a decrease in oxygen transmission rate (OTR) values. This decrement reached up to 50% for high organoclay content films in comparison to pristine PS film. Decrement above 80% was measured for microcomposites with mesoporous silicas and 5 wt% filler content obtained via melt compounding. |
| Databáze: | OpenAIRE |
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