Surface treatment of halloysite nanotubes with sol–gel reaction for the preparation of epoxy composites
| Autor: | Bongkuk Seo, Choong-Sun Lim, Dong Koo Lee, Taehee Kim, Suhyun Kim |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Universal testing machine
Materials science Scanning electron microscope General Chemical Engineering 02 engineering and technology General Chemistry Epoxy engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Halloysite 0104 chemical sciences Flexural strength Transmission electron microscopy visual_art engineering visual_art.visual_art_medium Thermomechanical analysis Composite material 0210 nano-technology Sol-gel |
| Zdroj: | RSC Adv.. 7:47636-47642 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c7ra09084f |
| Popis: | Halloysite nanotubes (HNTs) are naturally occurring aluminosilicates that have received attention for their high aspect ratio and low cost, which makes them suitable for commercial applications. HNTs provide good mechanical properties when applied in epoxy resins as fillers. The mechanical and thermal properties of HNTs are further enhanced by surface treatment using the sol–gel method. In this study, the modified surfaces of HNTs (m-HNTs) were investigated using scanning electron microscopy and transmission electron microscopy. The amounts of m-HNTs were varied in the epoxy composition (binder) that was comprised of a latent hardener, a reaction accelerator, and an epoxy resin. The physical properties of the cured composites with different amounts of HNTs and m-HNTs were measured using a universal testing machine (UTM) to analyze the effect of HNT and m-HNT on the flexural strength. Furthermore, the thermomechanical analysis of the cured composites with m-HNT showed that the dimensional changes of the composites were lower than those of epoxy composites with HNT particles. |
| Databáze: | OpenAIRE |
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