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Mussel-Inspired Co-Deposition of Polydopamine/Silica Nanoparticles onto Carbon Fiber for Improved Interfacial Strength and Hydrothermal Aging Resistance of Composites

1
School of Chemistry and Materials Science, Ludong University, Yantai 264025, China
2
Institute of Polymer Materials, Qingdao University, Qingdao 266071, China
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(3), 712; https://doi.org/10.3390/polym12030712 (registering DOI)
Received: 12 February 2020 / Revised: 9 March 2020 / Accepted: 20 March 2020 / Published: 23 March 2020
(This article belongs to the Collection Assessment of the Ageing and Durability of Polymers)
A novel and effective strategy was first proposed for the codeposition of a mussel-inspired nanohybrid coating with excellent wettability onto the surface of carbon fibers (CFs) by simultaneous polymerization of bioinspired dopamine (DA) and hydrolysis of commercial tetraethoxysilane (TEOS) in an eco-friendly one-pot process. Mussel-inspired nanohybrids could be adhered onto the surface of CFs firmly. The novel modification could afford sufficient polar groups and significantly improve fiber surface roughness and energy without decreasing fiber intrinsic strength, which were advantageous to promote interfacial compatibility and wettability between CFs and matrix resin. As a result, the interfacial shear strength of composites increased to 48.21 ± 1.45 MPa compared to that of untreated composites 29.47 ± 0.88 MPa. Meanwhile, the nanohybrid coating increased significantly composites’ hydrothermal aging resistance. The efficient strategy shows a promising and green platform of surface functionalization of CFs for preparing advanced polymer composites arising from broadly mechanical-demanding and energy-saving usages. View Full-Text
Keywords: polymeric composites; carbon fiber; surface modification; interface polymeric composites; carbon fiber; surface modification; interface
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MDPI and ACS Style

Cui, X.; Ma, L.; Wu, G. Mussel-Inspired Co-Deposition of Polydopamine/Silica Nanoparticles onto Carbon Fiber for Improved Interfacial Strength and Hydrothermal Aging Resistance of Composites. Polymers 2020, 12, 712.

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