Mostovoy Anton, Shcherbakov Andrey, Serikbayeva Gulbanu, Lopukhova Marina, Svitkina Victoria, Shanina Zamzagul, Bekeshev Amirbek
Laboratory of Modern Methods of Research of Functional Materials and Systems, Yuri Gagarin State Technical University of Saratov, Polytechnichskaya St., 77, 410054 Saratov, Russia.
Laboratory of Support and Maintenance of the Educational Process, Yuri Gagarin State Technical University of Saratov, Polytechnichskaya St., 77, 410054 Saratov, Russia.
Polymers (Basel). 2025 Jun 16;17(12):1666. doi: 10.3390/polym17121666.
In this paper, the effect of aluminosilicate microspheres (ASMs) from thermal power plant (TPP) ash on the properties of epoxy composites was studied. A method for modifying the ASMs' surface using aminoacetic acid was developed to improve the adhesion at the polymer-filler interface. Complex analysis methods, including scanning electron microscopy, infrared spectroscopy, a thermogravimetric analysis, DSC, and DMA, showed that adding the optimal amount of ASMs significantly improved the physical and mechanical properties of the composites: the flexural strength increased by 112%, the elastic modulus by 198%, and the impact strength by 50%. Functionalization of the ASMs enhances their interaction with the matrix, providing the composites with the best strength and thermal stability indicators among the studied materials. The study of the curing kinetics showed the initiating effect of functionalized ASMs on the curing process of epoxy compositions, associated with the presence of active amino groups on the surface of the particles. The resulting composites demonstrate potential for application in structural and fire-resistant materials; have high-deformation and -strength characteristics; and facilitate the disposal of industrial waste.
本文研究了来自热电厂（TPP）粉煤灰的硅铝酸盐微球（ASMs）对环氧复合材料性能的影响。开发了一种使用氨基乙酸对ASMs表面进行改性的方法，以改善聚合物-填料界面处的附着力。包括扫描电子显微镜、红外光谱、热重分析、DSC和DMA在内的综合分析方法表明，添加最佳量的ASMs可显著提高复合材料的物理和机械性能：弯曲强度提高了112%，弹性模量提高了198%，冲击强度提高了50%。ASMs的功能化增强了它们与基体的相互作用，使复合材料在所研究的材料中具有最佳的强度和热稳定性指标。固化动力学研究表明，功能化的ASMs对环氧组合物的固化过程具有引发作用，这与颗粒表面存在活性氨基有关。所得复合材料在结构和耐火材料方面具有应用潜力；具有高变形和高强度特性；并有助于工业废物的处理。
