航空学报 > 2015, Vol. 36 Issue (9): 3187-3194   doi: 10.7527/S1000-6893.2014.0307

喷射吸滤成型法制备碳纳米纸及其应变/温度传感特性

卢少微1,2, 冯春林3, 聂鹏3, 王晓强2, 熊需海2, 吕伟2   

  1. 1. 沈阳航空航天大学 辽宁省通用航空重点实验室, 沈阳 110136;
    2. 沈阳航空航天大学 航空航天工程学部, 沈阳 110136;
    3. 沈阳航空航天大学 机电工程学院, 沈阳 110136
  • 收稿日期:2014-09-11 修回日期:2014-10-30 出版日期:2015-09-15 发布日期:2014-11-19
  • 通讯作者: 卢少微 男, 博士, 教授。主要研究方向: 聚合物基复合材料健康监测。 Tel: 024-89723963 E-mail: shaowei9132@sina.com E-mail:shaowei9132@sina.com
  • 作者简介:冯春林 男, 硕士研究生。主要研究方向: 聚合物基复合材料健康监测。 E-mail: fengchunlin.2009@163.com;聂鹏 男, 博士, 教授。主要研究方向: 机电测试技术。 E-mail: niehit@163.com;王晓强 男, 博士, 讲师。主要研究方向: 健康监测。 E-mail: xqwang_sau@163.com;熊需海 男, 博士, 讲师。主要研究方向: 复合材料。 E-mail: 157912865@qq.com;吕伟 男,博士,教授。主要研究方向:健康监测。 E-mail: lw4488@sina.com
  • 基金资助:

    国防十二五基础科研项目 (A352001106); 航空科学基金 (2013ZA54012); 辽宁省教育厅项目 (L2013074)

Fabrication of carbon nanotube Buckypaper by spray-vacuum filtration method and its strain and temperature sensing properties

LU Shaowei1,2, FENG Chunlin3, NIE Peng3, WANG Xiaoqiang2, XIONG Xuhai2, LYU Wei2   

  1. 1. Liaoning Key Laboratory of General Aviation, Shenyang Aerospace University, Shenyang 110136, China;
    2. Department of Aerospace, Shenyang Aerospace University, Shenyang 110136, China;
    3. School of Mechatronics Engineering, Shenyang Aerospace University, Shenyang 110136, China
  • Received:2014-09-11 Revised:2014-10-30 Online:2015-09-15 Published:2014-11-19
  • Supported by:

    Defense Industrial Technology Development Program of China (A35201106); Aeronautical Science Foundation of China (2013ZA54012); Program of the Education Department of Liaoning Province (L2013074)

摘要:

碳纳米纸可作为应变传感器监测结构应变损伤,同时还可作为温度传感器监测环境温度变化。将多壁碳纳米管单分散后,采用喷射吸滤法制备碳纳米纸,利用场发射扫描电子显微镜和氮气吸附法表征碳纳米纸微观形貌及平均孔径。碳纳米纸的应变传感和温度传感实验表明碳纳米纸对应变灵敏度较高,灵敏度系数分别为10.21(0~39 000 με)和524.79(39 000~55 000 με);碳纳米纸经退火处理后,升温过程电阻温度系数分别为-6.57%/℃(20~100 ℃)和-3.25%/℃(100~200 ℃),降温过程电阻温度系数分别为-5.79%/℃(20~100 ℃)和-2.88%/℃(100~200 ℃),具有较好的温度传感可逆性和重复性。

关键词: 碳纳米管, 喷射吸滤, 碳纳米纸, 应变监测, 温度监测

Abstract:

Carbon nanotube Buckypaper can be used as strain sensor for the monitoring of strain injury in structure and also can be used as temperature sensor to monitor the temperature change of environment. Buckypaper is fabricated with monodispersion solution of multi-walled carbon nanotubes through spray-vacuum filtration method. The morphology and mean pore size are characterized by field-emission scanning electron microscope and nitrogen adsorption-desorption. The response and sensitivity to strain and temperature of carbon nanotube Buckypaper are investigated. The results indicate that Buckypaper has a very high strain sensitivity in the strain range of 0-55 000 με with gauge factor of 10.21 (0-39 000 με) and 524.79 (39 000-55 000 με). After annealing treatment, temperature coefficient of resistance of carbon nanotube Buckypaper is -6.57%/℃ (20-100 ℃) and -3.25%/℃ (100-200 ℃) in heating stage and -5.79%/℃ (20-100 ℃) and -2.88%/℃ (100-200 ℃) in cooling stage with an excellent reversibility and repetition.

Key words: carbon nanotubes, spray-vacuum filtration method, carbon nanotube Buckypaper, strain monitoring, temperature monitoring

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