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ORIGINAL RESEARCH article
Front. Chem.
Sec. Polymer Chemistry
Volume 12 - 2024 |
doi: 10.3389/fchem.2024.1433727
The functional graphene/epoxy resin composites prepared by novel two-phase extraction towards enhancing mechanical properties and thermal stability
Provisionally accepted- 1 1 Tubular Goods Research Institute, China National Petroleum Corporation & State Key Laboratory of Oil and Gas Equipment, Xi'an, China
- 2 School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
- 3 Zhengzhou University, Zhengzhou, Henan Province, China
- 4 Xidian University, Xi'an, Shaanxi Province, China
Epoxy resins are one of the most widely used thermosetting resins due to their excellent properties. However, epoxy resins are prone to brittle fracture, which restricts their application and development. In this work, graphene oxide is firstly prepared by the Hummer method, then modified by hyperbranched polyamide ester, and reduced by hydrazine hydrate to obtain functionalized graphene, which improves the compatibility between graphene and epoxy resin. The different ratios of functionalized graphene/epoxy composites were prepared by a novel two-phase extraction method, and their mechanical properties and thermal stability were tested. The results showed that the mechanical properties of functionalized graphene/epoxy composites were greatly improved, in which the tensile strength of the functionalized graphene/epoxy composites with a mass fraction of 0.1wt% was increased by 77wt% over that of the pure epoxy resin, the flexural strength was increased by 56%, and the glass transition temperature was also increased by 50°C.
Keywords: Functionalized graphenes, Two-phase extraction, Epoxy Resin, composites, mechanical properties and thermal stability
Received: 16 May 2024; Accepted: 18 Jul 2024.
Copyright: © 2024 Zhu, Wang, Zhang, Li, Zhang, Li, Ding, Jin, Li and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Jiaoxia Zhang, School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang, China
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