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http://dx.doi.org/10.21289/KSIC.2022.25.3.461

Analysis of Mechanical and Thermal Properties of Epoxy Complex using Zirconia Supported Halloysite Nanotubes as Filler  

Kim, Moon-Il (Dept. of Environmental Administration, Catholic University in Pusan)
Publication Information
Journal of the Korean Society of Industry Convergence / v.25, no.3, 2022 , pp. 461-466 More about this Journal
Abstract
Epoxy resins are widely used in various industrial fields. However, they suffer from brittleness, an issue that must be addressed for further applications. To solve this problem, additional fillers are needed to improve the mechanical and thermal properties of the resins; zirconia is one such filler. However, it has been reported that aggregation may occur in the epoxy composites as the amount of zirconia increases, preventing enhancement of the mechanical strength of the epoxy composites. Herein, to reduce the aggregation, zirconia was well dispersed on halloysite nanotubes (HNTs), which have high thermal and mechanical strength, by a conventional wet impregnation method using zirconyl chloride octahydrate as a precursor. The mechanical and thermal strengths of the epoxy composites with The zirconia impregnated HNTs (Zr/HNT) were investigated. Zr/HNT were characterized by Scanning electron microscope (SEM), transmittance electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy. The thermal strength of the epoxy composites was studied by thermomechanical analysis (TMA) and the mechanical strength of the epoxy composites (flexural strength) was studied by using a universal testing machine (UTM). The mechanical and thermal strengths of the epoxy complex with Zr/HNT were improved compared to those of the epoxy complex with HNT, and also increased as the content of Zr/HNT increased.
Keywords
Zirconia; Halloysite Nanotube (HNT); Epoxy Complex; Filler;
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