碳纳米管石墨烯协同改性环氧树脂复合材料的机敏性研究

玻璃钢/复合材料 ›› 2018, Vol. 0 ›› Issue (10): 62-69.

碳纳米管石墨烯协同改性环氧树脂复合材料的机敏性研究

田长进, 卢青, 徐茜茜, 孙仁娟^*

山东大学土建与水利学院,济南250061

收稿日期:2018-04-13 出版日期:2018-10-28 发布日期:2018-10-28
通讯作者: 孙仁娟(1972-),女,副教授,博士,主要从事道路工程材料方面的研究,sunrenjuan@sdu.edu.cn。
作者简介:田长进(1994-),男,硕士研究生,主要从事道路工程材料方面的研究。
基金资助:
教学部留学回国人员科研启动基金(20131792)

SENSING ABILITY OF GRAPHENE AND CARBON NANOTUBES MODIFIED EPOXY RESIN

TIAN Chang-jin, LU Qing, XU Xi-xi, SUN Ren-juan^*

School of Civil Engineering, Shandong University, Jinan 250061, China

Received:2018-04-13 Online:2018-10-28 Published:2018-10-28

摘要/Abstract

摘要： 进行了碳纳米管石墨烯协同改性环氧树脂复合材料的机敏性能研究。试验固定碳纳米管质量分数为0.3%,通过改变C级和M级两种石墨烯掺量,得到不同石墨烯掺量下复合材料的导电特性和机敏性。结果显示:C级石墨烯复合材料的阈值区间为11%~15%;C级石墨烯掺量为11%时,试件压敏性最优,噪声最小;掺量为15%时拉敏性最佳,在应力为1.25 MPa时,电阻变化率最大为0.89%。M级石墨烯碳纳米管复合材料的阈值区间为3%~6%;M级石墨烯掺量为3%时,压敏试件的电阻变化率最大为3.21%,但滞弹现象严重;掺量5%时拉敏性最好,噪音最小。在相同分散工艺下,M级石墨烯导电性能优于C级石墨烯。

关键词: 复合材料, 碳纳米管, 石墨烯, 阈值曲线, 机敏性

Abstract: This study analyzed the sensing ability of carbon nanotubes and grapheme modified epoxy resin. The mass fraction of carbon nanotubes (CNTs) was fixed at 0.3%. The resistivity and sensitivity of the composites with different graphene content were obtained by changing the content of C and M graphene. The results show that the threshold range of C-graphene composites is 11%~15%. When the content of C-graphene is 11%, the sample has the best pressure-sensitivity and the least noise. When the dosage is 15%, the best tensile property is obtained. And, when the stress is 1.25 MPa, the maximum rate of resistance change is 0.89%. The threshold range for M-grade graphene nanotubes composites is 3%~6%. When the content of M graphene is 3%, the maximum rate of resistance change of pressure-sensitive specimen is 3.21%, but the phenomenon of hysteresis is serious. When the content of M-graphene is 5%, the tensile sensitivity is the best and the noise is the least. Under the same dispersion process, M-grade graphene is superior to C grade graphene.

Key words: composites, carbon nanotube, graphene, piezoresistivity, alertness

中图分类号:

TB332

田长进, 卢青, 徐茜茜, 孙仁娟. 碳纳米管石墨烯协同改性环氧树脂复合材料的机敏性研究[J]. 玻璃钢/复合材料, 2018, 0(10): 62-69.

TIAN Chang-jin, LU Qing, XU Xi-xi, SUN Ren-juan. SENSING ABILITY OF GRAPHENE AND CARBON NANOTUBES MODIFIED EPOXY RESIN[J]. Fiber Reinforced Plastics/Composites, 2018, 0(10): 62-69.

参考文献

[1] Sandler J, Shaffer M S P, Prasse T, et al. Development of a disper-sion process for carbon nanotubes in an epoxy matrix and the resulting electrical properties[J]. Polymer, 1999,40(21): 5967-5971.
[2] 赵学英. 环氧树脂/碳纳米管导电涂层材料的制备与研究[D]. 北京: 北京化工大学, 2013.
[3] 黄东. 石墨烯/环氧树脂复合材料的制备与性能研究[D]. 天津: 天津大学, 2010.
[4] Liu Z, Shen D, Yu J, et al. Exceptionally high thermal and electrical conductivity of three-dimensional graphene-foam-based polymer composites[J]. RSC Advances,2016, 27(6): 22364-22369.
[5] 赵冬梅, 李振伟, 刘领弟, 等. 石墨烯/碳纳米管复合材料的制备及应用进展[J]. 化学学报, 2014.
[6] 罗日萍, 谢林生, 等. 碳纳米管/石墨烯/环氧树脂复合材料的制备及其性能研究[D]. 上海: 华东理工大学, 2013.
[7] Jia Y C, Yu K J, Qian K. Facile approach to prepare multi-walled carbon nanotubes/graphene nanoplatclets hybrid material[J]. Nanoscalc Rcs Lctt, 2013(8): 243.
[8] 卫保娟, 肖潭, 李雄俊, 等. 石墨烯与多壁碳纳米管增强环氧树脂复合材料的制备及性能[J]. 复合材料学报, 2012, 29(5): 53-60.
[9] 郏余晨, 俞科静, 钱坤, 等. 碳纳米管/酸化石墨烯杂化材料及其环氧树脂复合材料拉伸力学性能的研究[J]. 玻璃钢/复合材料, 2013(2): 69-73.
[10] Patole A S, Patole S P, Jung S Y, et al. Self-assembled graphene/carbon nanotube/polystyrene hybrid nano-composite by in situmic; roemulsion polymerization[J]. Eur Polym J, 2012, 48(2): 252-259.
[11] 张竞, 王洪亮, 叶瑞, 等. 氧化石墨烯/碳纳米管协同改性环氧树脂的制备学性能[J]. 高分子材料科学与工程, 2015, 31(11): 156-160.
[12] Yang S Y, Lin W N, Huang Y L, et al. Synergetic effects of graphene platelets and carbon nanotubes on the mechanical and thermal properties of epoxy composites[J]. Carbon, 2011, 49(3): 793-803.
[13] 沈小军, 孟令轩, 付绍云, 等. 石墨烯-多壁碳纳米管协同增强环氧树脂复合材料的低温力学性能[J]. 复合材料学报, 2015.
[14] 武新胜. 多壁碳纳米管/环氧树脂复合机敏材料的性能及制备工艺研究[D]. 济南: 山东大学, 2017.
[15] 王建强. 碳纳米管在环氧树脂中分散方法研究[D]. 北京: 北京化工大学, 2013.
[16] Simmons J G. Generalized formula for the electric tunnel effect between similar electrodes separated by a thin insulating film[J]. J Appl Phys., 1963, 34(6): 1793.
[17] Medalia A I. Electrical conduction in carbon black composites[J]. Rubber Chem Tech., 1986, 59(3): 432-454.