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首页 > 过刊浏览>2021年第44卷第10期 >38-45. DOI:10.11835/j.issn.1000-582X.2020.023
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石墨烯/环氧树脂纳米复合材料温度传感器的热电阻效应
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TB332

基金项目:

国家自然科学基金项目（11572268）；西南科技大学校级科研项目（18LZX422，14TDZK03）；西南科技大学研究生创新基金（18YCX110）。


Temperature-resistance property of graphene/epoxy nanocomposite temperature sensor
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    摘要:

    随着对温度传感器性能要求的不断提高，研制一种新型高性能温度传感器具有重要的意义。以石墨烯（graphene）为填料，环氧树脂（EP）为基体，通过超声及行星搅拌共混法制备了不同含量的石墨烯/环氧树脂纳米复合材料薄片，并在其两端加上电极制成温度传感器试件。同时，在温度范围30~100℃内研究了不同石墨烯含量对该纳米复合材料热电阻效应的影响，并进一步分析了其影响机理。结果表明，温度传感器在测试温度升高时表现出负温度系数（NTC）效应，并且电阻以近似线性的趋势减小。另外，温度传感器中石墨烯的含量越高，电阻减小的幅度越小。同一传感器试件经过3次循环热处理之后，其热电阻关系趋于稳定。

    Abstract:

    With the requirements for better performance of the temperature sensor, developing a new high-performance temperature sensor is of great significance. Using graphene as the nanofiller and epoxy resin as the matrix, various graphene/epoxy nanocomposite sheets with different graphene additions were prepared by ultrasonic and planetary stirring method. Electrodes were attached at both ends of the graphene/epoxy nanocomposite sheet to make the temperature sensor. The effects of graphene additions on the temperature-resistance properties of the nanocomposite sheets were investigated at the temperature range of 30℃ to 100℃. The results show that the temperature sensor exhibited a negative temperature coefficient (NTC) effect with the increasing temperature, and the resistance decreased in an approximately linear trend. In addition, it is found that the higher the graphene content, the smaller the magnitude of the resistance change. After three thermal cycle treatments, the temperature-resistance relationship of the sensor tended to be stable.

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肖藤,刘聪,刘奕贤,吴良科,宁慧铭,阿拉木斯.石墨烯/环氧树脂纳米复合材料温度传感器的热电阻效应[J].重庆大学学报,2021,44(10):38-45.

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  • 收稿日期:2019-11-13
  • 在线发布日期: 2021-10-27
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