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Article

Enhancing Thermo-Mechanical Properties of Epoxy Composites Using Fumed Silica with Different Surface Treatment

1
Laboratory of Adhesion & Bio-Composites, Department of Agriculture, Forestry and Bioresources, Seoul National University, Seoul 08826, Korea
2
Research Institute of Agriculture and Life Sciences, College of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
*
Author to whom correspondence should be addressed.
Academic Editors: Chih-Wei Chiu, Chih-Chia Cheng and Jia-Wun Li
Polymers 2021, 13(16), 2691; https://doi.org/10.3390/polym13162691
Received: 8 July 2021 / Revised: 6 August 2021 / Accepted: 8 August 2021 / Published: 12 August 2021
(This article belongs to the Special Issue Advances in Multifunctional Polymer-Based Nanocomposites)
The objectives of this study are to improve the thermal and mechanical properties of epoxy/fumed silica composite with different surface treatments of fumed silica. The addition of silica nanoparticles improved the thermal stability of the composite and slowed down the pyrolysis process. The crosslinking density and Tg of the epoxy/fumed silica composites increased because of the interfacial interaction between the PDMS-treated fumed silica particles and the epoxy matrix. The flexural strength of the epoxy nanocomposite was very high even at a low silica content because of the strong interactions between the PDMS-treated fillers and the epoxy matrix. These strong interfacial interactions originate from the attractive forces between the polymer and the filler. Therefore, the polymer nanocomposite containing the PDMS-treated fumed silica is shown to be sufficiently commercially promising. View Full-Text
Keywords: silica nanoparticle; epoxy/fumed silica composites; thermal stability; thermo-mechanical properties silica nanoparticle; epoxy/fumed silica composites; thermal stability; thermo-mechanical properties
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MDPI and ACS Style

Kim, K.-M.; Kim, H.; Kim, H.-J. Enhancing Thermo-Mechanical Properties of Epoxy Composites Using Fumed Silica with Different Surface Treatment. Polymers 2021, 13, 2691. https://doi.org/10.3390/polym13162691

AMA Style

Kim K-M, Kim H, Kim H-J. Enhancing Thermo-Mechanical Properties of Epoxy Composites Using Fumed Silica with Different Surface Treatment. Polymers. 2021; 13(16):2691. https://doi.org/10.3390/polym13162691

Chicago/Turabian Style

Kim, Kyung-Min, Hoon Kim, and Hyun-Joong Kim. 2021. "Enhancing Thermo-Mechanical Properties of Epoxy Composites Using Fumed Silica with Different Surface Treatment" Polymers 13, no. 16: 2691. https://doi.org/10.3390/polym13162691

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