Study of morphological and mechanical performance of amine-cured glassy epoxy–clay nanocomposites
Corresponding Author
A. Mouloud
Polytechnic Military School, B.P 17, EMP, Bordj-El-Bahri, 16111 Algiers, Algeria
Polytechnic Military School, B.P 17, EMP, Bordj-El-Bahri, 16111 Algiers, Algeria===Search for more papers by this authorR. Cherif
Polytechnic Military School, B.P 17, EMP, Bordj-El-Bahri, 16111 Algiers, Algeria
Search for more papers by this authorS. Fellahi
Plastics and Rubber Engineering Department, Algerian Petroleum Institute, 35000 Boumerdes, Algeria
Search for more papers by this authorY. Grohens
Materials Engineering Laboratory of Bretagne, Research Centre, Rue de Saint Maudé, 56321 Lorient, France
Search for more papers by this authorI. Pillin
Materials Engineering Laboratory of Bretagne, Research Centre, Rue de Saint Maudé, 56321 Lorient, France
Search for more papers by this authorCorresponding Author
A. Mouloud
Polytechnic Military School, B.P 17, EMP, Bordj-El-Bahri, 16111 Algiers, Algeria
Polytechnic Military School, B.P 17, EMP, Bordj-El-Bahri, 16111 Algiers, Algeria===Search for more papers by this authorR. Cherif
Polytechnic Military School, B.P 17, EMP, Bordj-El-Bahri, 16111 Algiers, Algeria
Search for more papers by this authorS. Fellahi
Plastics and Rubber Engineering Department, Algerian Petroleum Institute, 35000 Boumerdes, Algeria
Search for more papers by this authorY. Grohens
Materials Engineering Laboratory of Bretagne, Research Centre, Rue de Saint Maudé, 56321 Lorient, France
Search for more papers by this authorI. Pillin
Materials Engineering Laboratory of Bretagne, Research Centre, Rue de Saint Maudé, 56321 Lorient, France
Search for more papers by this authorAbstract
The effect of three different alkylammonium-modified montmorillonite on morphological and mechanical properties of glassy epoxy-amine nanocomposites is reported. Small amounts of clays <10 phr (part per hundred of resin) were used in each system of nanocomposite. The morphology of the prepared nanocomposites was performed by means of X-ray diffraction and transmission electron microscopy. Differential scanning calorimetry (DSC) was used to investigate the glass transition temperatures (Tg). Mechanical properties were based on tensile characteristics (Young's modulus), impact strength, and fracture toughness. The measured moduli were compared to theoretical predictions. Scanning electron microscopy was used to study the morphological structure of the fracture surfaces of impacted specimens. It was found that at a low content of 2 phr (1.2 wt %) of nanoclays, the impact strength and the fracture toughness were improved by 77 and 90% respectively, comparatively to the neat epoxy, whereas DSC revealed a reduction of the Tg of nanocomposites. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011
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