Volume 140, Issue 11 e53611
RESEARCH ARTICLE

Improve the interfacial properties of carbon fiber reinforced epoxy resin composites by maleimide-modified waterborne polyurethane sizing agent

Chengsen Li

Chengsen Li

Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China

Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China

Contribution: Data curation (lead), Formal analysis (lead), ​Investigation (lead), Methodology (lead), Writing - original draft (lead)

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Xueping Gao

Corresponding Author

Xueping Gao

Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China

Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China

Correspondence

Xueping Gao and Bo Zhu, Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong 250061, China.

Email: [email protected] and [email protected]

Contribution: Data curation (supporting), Supervision (supporting), Writing - review & editing (supporting)

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Bo Zhu

Corresponding Author

Bo Zhu

Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China

Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China

Correspondence

Xueping Gao and Bo Zhu, Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong 250061, China.

Email: [email protected] and [email protected]

Contribution: Funding acquisition (lead)

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Xiaomin Yuan

Xiaomin Yuan

Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China

Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China

Contribution: Data curation (supporting), Formal analysis (supporting), Methodology (supporting)

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Zhijie Qiu

Zhijie Qiu

Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China

Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China

Contribution: Data curation (supporting), Formal analysis (supporting), Methodology (supporting)

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Ye Zhang

Ye Zhang

Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China

Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China

Contribution: Data curation (supporting), Formal analysis (supporting), Methodology (supporting)

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Shuhan Yan

Shuhan Yan

Key Laboratory of Liquid-Solid Structural Evolution and Processing of Materials of Ministry of Education, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, China

Carbon Fiber Engineering Research Center, School of Materials Science and Engineering, Shandong University, Jinan, Shandong, China

Contribution: Data curation (supporting), Formal analysis (supporting)

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First published: 20 January 2023
Citations: 3

Funding information: Key Research and Development Program of Shandong Province, Grant/Award Number: 2021ZLGX01; Natural Science Foundation of Shandong Province, Grant/Award Number: ZR202105210012

Abstract

The N-(4-hydroxyphenyl) maleimide (4-HPM) modified waterborne polyurethane emulsions (MWPU) were used as surface sizing agents to improve the interfacial adhesion between carbon fibers (CF) and epoxy resin matrix. Dynamic light scattering (DLS), transmission electron microscope (TEM), and thermogravimetric analysis (TGA) showed the particle size distribution, storage stability, and thermal stability of the modified MWPU. And the surface reactivity of CF increased significantly after sizing. The interfacial shear strength (IFSS) and the interlaminar shear strength (ILSS) of CFREs were tested, and the fracture morphology was observed. The result showed that a continuous and uniform sizing layer is formed on the surface of CF. In particular, the comprehensive performance and interfacial modification effect of the MWPU emulsion outperformed other samples when the 4-HPM content was 1.0 wt%. Compared with unsized carbon fibers, the IFSS and ILSS are up to 71.30% and 30.81% higher, respectively.

DATA AVAILABILITY STATEMENT

Research data are not shared.

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