Spider silk-inspired heterogeneous interphase featuring hybrid interaction for simultaneously improving the interfacial strength and fracture toughness between carbon fiber and epoxy by regulating hydrogen bond density
Article
Li, Hefeng, Liu, Cong, Zhu, Jiabao, Sun, Jiangman, Huan, Xianhua, Geng, Hongbo, Li, Tianming, Ge, Lei, Jia, Xiaolong, Yang, Xiaoping and Wang, Hao. 2024. "Spider silk-inspired heterogeneous interphase featuring hybrid interaction for simultaneously improving the interfacial strength and fracture toughness between carbon fiber and epoxy by regulating hydrogen bond density." Composites Part B: Engineering. 280. https://doi.org/10.1016/j.compositesb.2024.111476
Article Title | Spider silk-inspired heterogeneous interphase featuring hybrid interaction for simultaneously improving the interfacial strength and fracture toughness between carbon fiber and epoxy by regulating hydrogen bond density |
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ERA Journal ID | 4883 |
Article Category | Article |
Authors | Li, Hefeng, Liu, Cong, Zhu, Jiabao, Sun, Jiangman, Huan, Xianhua, Geng, Hongbo, Li, Tianming, Ge, Lei, Jia, Xiaolong, Yang, Xiaoping and Wang, Hao |
Journal Title | Composites Part B: Engineering |
Journal Citation | 280 |
Article Number | 111476 |
Number of Pages | 13 |
Year | 2024 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 1359-8368 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compositesb.2024.111476 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S1359836824002877 |
Abstract | Designing advanced fiber-reinforced polymer composites through biological inspiration proved to be a crucial strategy for overcoming limitations in simultaneously enhancing the strength and toughness of composites. To achieve simultaneous improvement in the interfacial strength and toughness between carbon fiber (CF) and epoxy, a spider silk-inspired interphase featuring hybrid interaction was constructed by introducing hyperbranched polyamide-amine (HPAA) and graphene oxide (GO) onto the surface of CF. The results suggested that manipulating the feed ratio to adjust the branching degree of HPAA allowed for the attainment of various hydrogen bond densities. The fiber surface with high hydrogen bond density provided more hydrogen bond interaction sites to promote the deposition of GO. Benefitting from the ameliorative interfacial adhesion force, surface energy and interface thickness, impressive improvements of 94.5 % and 110.0 % in respective interfacial strength and fracture toughness over those of untreated CF/EP composites were achieved for functionalized CF/EP composites. The enhancement mechanism of interfacial performance was attributed to the formation of a “nano-fishnet” structure, which improved the stress transformation efficiency and consumption of external energy absorbed by hydrogen bonds. The method of regulating the branching degree of hyperbranched polymers and hydrogen bond density has opened an advanced way for surface modification of high-performance fibers. |
Keywords | Carbon fiber/ epoxy composites; Interphase; Hydrogen bond ; Hyperbranched polymers |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Beijing University of Chemical Technology, China |
Hefei University of Technology, China | |
Inner Mongolia Aerospace Hong Gang Machinery, China | |
Hubei Sanjiang Aerospace Jiangbei Mechanical Engineering, China | |
School of Engineering | |
Centre for Future Materials |
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