Preparation of nanocomposite by adding of Tunisian nanoclay in unsaturated polyester matrix: mechanical and thermal study |
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Authors: | Fekri Laatar Manuel Gomez Mohamed Ramzi Ben Romdhane Ezzeddine Srasra |
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Affiliation: | 1.Laboratory of Physical Chemistry of Minerals and Materials Applications,National Research Center for Materials Science,Soliman,Tunisia;2.Faculté des Sciences de Bizerte,Université de Carthage,Carthage,Tunisia;3.Departamento de Química Física,Universidade de Santiago de Compostela,Santiago de Compostela,Spain |
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Abstract: | Unsaturated Polyester (UP) resin is widely used for many applications such as reinforced plastic (FRP) and polymer composites. However, these materials suffer from their low mechanical and thermal properties. For enhancing their performance, researchers have used Tunisian montmorillonite (MMT) for manufacturing of unsaturated polyester-montmorillonite (UP-MMT) nanocomposite synthesized by dispersing the UP resin into the silicate layers of MMT. The MMT has been modified ammonium quaternary as organic cation (OMMT). Test results, supported by mechanical testing, X-ray diffraction, thermal analysis (DSC and TGA) and transmission electron microscopy, indicated that the mechanical properties and the thermal stability of unsaturated polyester with OMMT nanocomposite (UP/OMMT) are better than those of pure UP. The degradation temperature increased by 78 °C with the addition of organic modification, and SEM micrographs show good dispersion of modified montmorillonite in the polymer matrix. Tensile strength is increased by 81 % for the UP/OMMT nanocomposite. |
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