石墨烯/多壁碳纳米管复配改性对天然橡胶复合材料应变传感性能的影响  

Effect of Graphene/Multi-Walled Carbon Nanotube Compound Modification on Strain Sensing Performance of Natural Rubber Composites

作　　者：邓鹏 杨洋[1] 郭荣鑫[1] 刘荟 范正明 Peng Deng;Yang Yang;Rongxin Guo;Hui Liu;Zhengming Fan(Key Laboratory of Disaster Prevention in Civil Engineering of Yunnan Province,School of Civil Engineering and Engineering,Kunming University of Science and Technology,Kunming 650500,China)

机构地区：[1]昆明理工大学建筑工程学院云南省土木工程防灾重点实验室,云南昆明650500

出　　处：《高分子材料科学与工程》2023年第6期146-153,159,共9页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(11962009)。

摘　　要：通过溶液共混法将不同配比的石墨烯/多壁碳纳米管(GE/MWCNT)添加到天然橡胶(NR)中,制备了具有电阻-应变响应特性的GE/MWCNT/NR复合材料。利用场发射扫描电镜(FE-SEM)表征了纳米碳填料在NR基体中的分散情况,研究了不同GE和MWCNT配比对材料力电性能的影响规律,通过傅里叶变化红外光谱分析了NR复合材料中纳米碳填料与基体之间的相互作用。结果表明,GE与MWCNT以及橡胶分子链之间的结合力促进了填料在基体中的分散,使复合材料的电阻/应变响应稳定性、灵敏性以及单调性明显优于不含GE的材料,并确定了GE与MWCNT复配比为1:1时,材料各项性能最优。Graphene/multi-walled carbon nanotubes(GE/MWCNT)with different ratios were added to natural rubber(NR)by solution blending method,and GE/MWCNT/NR composites with resistance-strain response characteristics were prepared.The dispersion of nanocarbon fillers in the NR matrix was characterized by field emission scanning electron microscopy(FE-SEM),the influence of different GE and MWCNT content on the electrodynamic properties of composite was studied,and finally the interaction between the filler and matrix was investigated by Fourier infrared spectroscopy(FT-IR).Experimental results show that the bonding effect between GE,MWCNT and NR improves the dispersion of filler in the matrix.Based on experimental and theoretical analysis,the sensitivity,stability and monotonous of resistance-strain response for the composites with GE are enhanced obviously,and the optimal content ratio for GE and MWCNT is confirmed as 1:1.

关 键 词：纳米碳改性天然橡胶复合材料 电阻/应变响应特性 导电橡胶 大应变监测 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]