Materials Reports  2020, Vol. 34 Issue (Z2): 562-566 |
| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Effects of Dopamine-doped Carbon Nanotubes on the Interfacial Properties of Aramid Fiber |
| LI Xiaoyu1, LI Cuiyu1,2, SU Rui1
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1 School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
2 Key Laboratory of Advanced Textile Composites, Ministry of Education, Tiangong University, Tianjin 300387, China |
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Abstract In order to improve the surface properties of aramid fiber and enhance the interfacial bonding strength between fiber and resin matrix, dopamine-doped carbon nanotubes were used to modify the aramid fiber, and the surface morphology, FTIR test, single fiber strength test, fiber surface contact angle test and fiber pull out test were carried out before and after modification. The results showed that the dopamine-doped carbon nanotube (CNT) modified fiber surface coating was improved in firmness. Compared with the unmodified fiber, the surface active groups of the fiber increased, and when the carbon nanotube concentration was 0.03%, the tensile breaking strength of the modified fiber increased 38.34%, the contact angle decreased, the surface free energy increased 49.5%, the interface shear strength increased 20.2%, and the interface performance between the fiber and the resin matrix was greatly improved.
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Published: 08 January 2021
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| Fund:This work was financially supported by the National Natural Science Foundation of China (51403154,11602168). |
| About author:: Xiaoyu Li, graduate student in School of Textile Science and Engineering of Tiangong University, majoring in composite mechanics. Cuiyu Li, associate professor, master supervisor, College of Textiles, Tianjin University of Technology.It is mainly engaged in the research of structure, perfor-mance and numerical simulation of textile composites.Currently hosted in “national natural science fund project” research item 1, carried out “the Tianjin Education Commission Project”, “Tianjin University of Technology” field projects project, as the main participants took part in the “National Natural Science Fund Project”, “National Natural Science Foundation of China and the UK Royal Society” jointly funded projects, “the Tianjin Science and Technology Commission Applied Basic Research Plan” projects, “the Tianjin Education Commission Project”, “Tianjin University of Technology” field project and so on many projects. She has published more than 20 papers in important academic journals at home and abroad, including more than 10 papers included in SCI and EI, and won the “10th Chen Weiji Excellent Papers Award” of China Textile Engineering Society. |
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