The preparation and thermo-mechanical characterization of composites based on polyamide 11 (PA11) filled with various amounts of both expandable and expanded graphites are presented. Investigation conducted using X-ray diffraction (XRD), scanning electron microscopy and surface area analyses indicated how graphite expanded under the selected processing conditions. The XRD analysis on PA11/graphite composites revealed no change in the crystal form of the PA11, while the presence of diffraction peaks associated to the graphite-stacked lamellae can be still detected. All the investigated composites showed an improvement of the thermal stability and mechanical properties (elastic and storage moduli).
Effect of expandable and expanded graphites on the thermo-mechanical properties of polyamide 11 / Oulmou, F.; Benhamida, A.; Dorigato, A.; Sola, A.; Messori, M.; Pegoretti, A.. - In: THE JOURNAL OF ELASTOMERS AND PLASTICS. - ISSN 0095-2443. - 51:2(2019), pp. 175-190. [10.1177/0095244318781956]
Effect of expandable and expanded graphites on the thermo-mechanical properties of polyamide 11
Sola, A.;Messori, M.;
2019
Abstract
The preparation and thermo-mechanical characterization of composites based on polyamide 11 (PA11) filled with various amounts of both expandable and expanded graphites are presented. Investigation conducted using X-ray diffraction (XRD), scanning electron microscopy and surface area analyses indicated how graphite expanded under the selected processing conditions. The XRD analysis on PA11/graphite composites revealed no change in the crystal form of the PA11, while the presence of diffraction peaks associated to the graphite-stacked lamellae can be still detected. All the investigated composites showed an improvement of the thermal stability and mechanical properties (elastic and storage moduli).
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