复合材料科学与工程 ›› 2022, Vol. 0 ›› Issue (10): 44-49.DOI: 10.19936/j.cnki.2096-8000.20221028.007

• 应用研究 • 上一篇    下一篇

低温循环下碳纳米管薄膜增强GFRP弯曲性能研究

马佳赫, 王共冬*, 要淞洋, 韩承霖, 李桦, 郭峰, 马群龙   

  1. 沈阳航空航天大学 航空宇航学院,沈阳100136
  • 收稿日期:2021-10-09 出版日期:2022-10-28 发布日期:2022-11-01
  • 通讯作者: 王共冬(1979-),男,博士,教授,研究方向为复合材料数字化制造,cadcam119@126.com。
  • 作者简介:马佳赫(1997-),男,硕士研究生,研究方向为复合材料数字化制造。
  • 基金资助:
    单兵穿戴式刚柔外骨骼系统(208052020162);辽宁省教育厅系列项目(JYT2020013)

Study on bending properties of GFRP reinforced by carbon nanotubes at low temperature

MA Jia-he, WANG Gong-dong*, YAO Song-yang, HAN Cheng-lin, LI Hua, GUO Feng, MA Qun-long   

  1. Aerospace Academy, Shenyang Aerospace University, Shenyang 110136, China
  • Received:2021-10-09 Online:2022-10-28 Published:2022-11-01

摘要: 分别将层间预埋碳纳米管薄膜(CNTF)和碳黑薄膜的GFRP层合板进行低温循环(-58 ℃~室温)处理,之后进行悬臂梁弯曲试验。通过观察微观图像、分析载荷-位移曲线和对比弯曲极限载荷,研究GFRP层合板低温循环后两种薄膜对GFRP层合板弯曲性能的影响和增强机理。试验结果表明:CNTF对层合板的增强作用最明显,并且受低温循环影响最小;碳黑薄膜也有一定增强作用,但略弱于CNTF。

关键词: GFRP, 低温循环, 碳纳米管薄膜, 悬臂梁弯曲

Abstract: The GFRP laminates with interlayer pre-embedded carbon nanotube films (CNTF) and carbon black films were treated with low-temperature cycling (-58 ℃~room temperature), respectively, followed by cantilever beam bending tests. By observing microscopic images, analyzing load-displacement curves and comparing bending ultimate loads, the effects of both films on the bending properties of GFRP laminates and the enhancement mechanism of GFRP laminates after low-temperature cycling were investigated. The test results show that CNTF has the most obvious strengthening effect on the laminate and is least affected by the low-temperature cycling energy. The carbon black film also has certain strengthening effect, but it is slightly weaker than CNTF.

Key words: GFRP, low-temperature cycle, carbon nanotube films, bending of cantilever beam

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