The Influence of Pristine and Aminoacetic Acid-Treated Aluminum Nitride on the Structure, Curing Processes, and Properties of Epoxy Nanocomposites
Bekeshev A. Mostovoy A. Shcherbakov A. Tastanova L. Akhmetova M. Apendina A. Orynbassar R. Lopukhova M.
December 2023Multidisciplinary Digital Publishing Institute (MDPI)
Journal of Composites Science
2023#7Issue 12
This article describes the preparation of aluminum nitride (AlN) functionalized with amino groups by chemically modifying the surface of AlN with aminoacetic acid and their dispersion in the epoxy composition. As a result of the studies, it was found that the functionalization of AlN particles with aminoacetic acid ensured their better chemical compatibility with the epoxy composition, which facilitated the dispersibility of AlN particles; it was also found that the functionalization of the nanofiller has a significant effect on the structure, curing kinetics, physicochemical and mechanical properties of epoxy nanocomposites. The optimal concentration of the functionalizing agent (aminoacetic acid) has been determined, which is necessary for the chemical binding of the functional groups of aminoacetic acid, the epoxy oligomer and AlN, which best affects the dispersion and the size distribution of AlN particles, and also ensures maximum strength characteristics of epoxy composites containing AlN treated with aminoacetic acid: bending stress and bending modulus increase by 35% and 80%, respectively, while tensile strength and tensile elastic modulus increase by 74% and 36%, respectively. Furthermore, the impact strength shows a remarkable boost of 133% compared to plasticized epoxy composite without AlN.
aluminum nitride , aminoacetic acid , epoxy oligomer , functionalization , modification , nanofiller , physicochemical and mechanical properties , plasticizer
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Laboratory of Polymer Composites, K. Zhubanov Aktobe Regional State University, Aliya Moldagulova Avenue 34, Aktobe, 030000, Kazakhstan
Laboratory of Modern Methods of Research of Functional Materials and Systems, Yuri Gagarin State Technical University of Saratov, Polytechnichskaya St., 77, Saratov, 410054, Russian Federation
Laboratory of Support and Maintenance of the Educational Process, Yuri Gagarin State Technical University of Saratov, Polytechnichskaya St., 77, Saratov, 410054, Russian Federation
Department “Chemistry and Chemical Technology”, K. Zhubanov Aktobe Regional State University, Aliya Moldagulova Avenue 34, Aktobe, 030000, Kazakhstan
Department “Physics”, K. Zhubanov Aktobe Regional State University, Aliya Moldagulova Avenue 34, Aktobe, 030000, Kazakhstan
Department of Economics and Humanitarian Sciences, Yuri Gagarin State Technical University of Saratov, Polytechnichskaya St., 77, Saratov, 410054, Russian Federation
Laboratory of Polymer Composites
Laboratory of Modern Methods of Research of Functional Materials and Systems
Laboratory of Support and Maintenance of the Educational Process
Department “Chemistry and Chemical Technology”
Department “Physics”
Department of Economics and Humanitarian Sciences
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