| POLYMERS AND POLYMER MATRIX COMPOSITES |
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| Anti-gamma Radiation Properties of Carbon Fiber Composites Modified by Carbon Nanotubes in Interface |
| YAN Minjie, LIU Liangsen, CHEN Li, LIU Liyan, JING Miaolei, XU Zhiwei, JIANG Yaming, FU Hongjun
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| Key Laboratory of Advanced Braided Composites, Ministry of Education, School of Textiles, Tianjin Polytechnic University, Tianjin 300387 |
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Abstract In order to study the effect of carbon nanotubes (CNTs) on the anti-irradiation properties of carbon fiber/epoxy composites (CF/EP), CNTs were introduced into the CF/EP interface region (CF-CNTs/EP) by electrophoretic deposition. The composites were then subjected to γ ray irradiation (γ-CF/EP and γ-CF-CNTs/EP), and their properties such as mechanics, heat, fatigue resistance and functional group changes were analyzed. The results showed that the storage modulus, glass transition temperature, flexural strength and flexural modulus of γ-CF-CNTs/EP were higher than those of γ-CF/EP by 7.8 GPa, 4.53 ℃, 280 MPa and 19.2 GPa, respectively. The fatigue resistance of γ-CF-CNTs/EP was better than that of γ-CF/EP. The XPS test revealed no significant change in γ-CF/EP, while the internal C-C bond content of γ-CF-CNTs/EP decreased sharply by 10.88%, and C-N and C-O increased by 5.97% and 4.44%, respectively. Combined with scanning electron microscopy and crack propagation models, the microstructure and enhancement mechanisms of CNTs-reinforced composites for anti-gamma radiation are discussed. The above results confirm that the addition of CNTs into the interface region of CF/EP can effectively improve its radiation resistance.
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Published: 28 October 2019
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| Fund:This work was financially supported by the National Natural Science Foundation of China (11575126,U1533123),Tianjin Natural Science Fund (16JCYBJC17700). |
| About author:: Minjie Yan, a graduate student at Tianjin Polytechnic University, is studying the radiation resistance of carbon nanotube modified carbon fiber composites;Zhiwei Xu, male, born in December 1978, is a professor who is mainly engaged in the structural design of carbon-based composites. He has participated in many scientific research projects such as the 863 Program, the National Natural Science Foundation and the National Defense Pre-Research. He has undertaken three projects from the National Natural Fund, four provincial projects and five enterprise-commissioned projects. He has published more than 100 SCI papers in important academic journals at home and abroad, and the papers have been cited more than 2 200 papers, with an H factor of 26. In addition, he also obtained 12 national invention patents and 4 provincial science and technology progress awards. |
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2019, Vol. 33 
