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Bekbayeva Lyazzat, School of Chemical Engineering, Kazakh British Technical University, 106 Walikhanov Street, Almaty, 050010, KazakhstanFollow
El-Sayed Negim, School of Chemical Engineering, Kazakh British Technical University, 106 Walikhanov Street, Almaty, 050010, Kazakhstan
Khaldun M. Al Azzam, Department of Chemistry, Faculty of Science, The University of Jordan, 11942 Amman, Jordan
Rinat Zhanibekov, School of Chemical Engineering, Kazakh British Technical University, 106 Walikhanov Street, Almaty, 050010, Kazakhstan
Puzikova Darya Sergeevna, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, Kazakh British Technical University, 050010, Kunaev st., 142, Almaty, Kazakhstan
Kenzin Nail Rashidovich, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, Kazakh British Technical University, 050010, Kunaev st., 142, Almaty, Kazakhstan
Zhurynov Murat Zhurynovich, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, Kazakh British Technical University, 050010, Kunaev st., 142, Almaty, Kazakhstan
Nefedov Alexandr Nikolayevich, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, Kazakh British Technical University, 050010, Kunaev st., 142, Almaty, Kazakhstan
Khussurova Gulinur Marsovna, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, Kazakh British Technical University, 050010, Kunaev st., 142, Almaty, Kazakhstan
Ewies F. Ewies, Organometallic and Organometalloid Chemistry Department, Chemical Industries Research Institute, National Research Centre, Elbhouth St., Dokki, Giza PO 12622, Egypt

Article Type

Research Paper

Abstract

Epoxy/2-hydroxyethyl methacrylate (E0/2-HEMA) hybrids were developed to enhance the physicomechanical performance of a high molecular weight epoxy resin (E0), specifically ELM-NG 900Z based on diglycidyl ether of bisphenol A. Hybrid systems were synthesized by copolymerizing E0 with varying amounts of 2-HEMA (10%, 20%, 30%, and 40%) using triethylamine (TEA) as a catalyst. To assess the impact of 2- HEMA incorporation, hybrid films were evaluated in terms of viscosity, tensile strength, elongation at break, adhesion, hardness, thixotropy index (TI), and resistance to chemical and solvent exposure. The obtained epoxy hybrids were characterized using Fourier transform infrared (FTIR) spectroscopy and thermogravimetric analysis (TGA). The epoxy resin, hybrids, and hardener (G-A0533, 310–350 mg KOH/g) were mixed at a 1:0.5 ratio. The incorporation of 2-HEMA significantly improved both the physical and mechanical properties of E0. Notably, the hybrid containing 30% 2-HEMA exhibited the highest adhesion strength (12 MPa) and tensile strength (69.8 MPa) relative to the unmodified epoxy. Enhancements in chemical and solvent resistance, as well as mechanical integrity, were observed with increasing 2-HEMA content up to 30%. These improvements are attributed to the synergistic interaction between functional groups such as double bonds, hydroxyl, carbonyl, and ether moieties facilitating robust network formation within the hybrid matrix. However, at 40% of 2-HEMA, the curing mechanism was disrupted, resulting in incomplete drying and compromised film formation.

Keywords

epoxy; Acrylic; 2-HEMA; Hybrid; hardener; resistance

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