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首页> 外文期刊>Coatings >Aspects of Coatings on Buckypaper as a Study into the Expected Effects of Coatings on Carbon Nanotube Wires
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Aspects of Coatings on Buckypaper as a Study into the Expected Effects of Coatings on Carbon Nanotube Wires

机译:涂料涂层的各方面作为涂层对碳纳米管电线涂层预期影响的研究

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Buckypaper (BP) was used as an accumulation of nanotubes to simulate as carbon nanotube (CNT) wires to study the interaction between four different insulating coating materials and CNTs. The wettability and electrical conductivity performance of each CNT/coating pair was assessed. The BP was prepared by filtering a sonicated solution of single-walled carbon nanotubes and N,N-Dimethylformamide, through a polytetrafluoroethylene (PTFE) membrane of 0.45 μm pore size. It was observed with Scanning Electron Microscopy, its chemical composition determined by X-ray Photoelectron Spectroscopy, its imperfections and purity measured by Raman Spectroscopy and the porosity (%) and pore distribution obtained by Nitrogen Physisorption. The results showed similar porosity and surface structure to that of reported CNT wires. The surface free energy of the BP was obtained through the Owens-Wendt method, and surface tension of the coatings was calculated with pendant drop measurements to find the adhesion and wettability parameters. Epoxy resin showed the highest wettability and adhesion, which resulted in infiltration into the BP that decreased electrical conductivity by 65%. In contrast, the insulating varnish showed much lower level of wettability and adhesion which resulted in the lowest decrease in conductivity (9.3%).
机译:将Buckypaper(BP)用作纳米管的积累,以模拟碳纳米管(CNT)线,以研究四种不同的绝缘涂层材料和CNT之间的相互作用。评估每个CNT /涂层对的润湿性和导电性能。通过将单壁碳纳米管和N,N-二甲基甲酰胺的超声溶液过滤通过0.45μm孔径的聚四氟乙烯(PTFE)膜来制备BP。用扫描电子显微镜观察其化学成分通过X射线光电子能谱确定,其通过拉曼光谱测量的缺陷和纯度和通过氮原料获得的孔隙率(%)和孔隙分布。结果表明,报道的CNT线的孔隙率和表面结构类似。通过Owens-Wendt方法获得BP的表面自由能,并用悬垂液滴测量计算涂层的表面张力,以找到粘附和润湿性参数。环氧树脂显示出最高的润湿性和粘附性,导致渗透到BP降低电导率65%。相反,绝缘清漆显示出较低水平的润湿性和粘附,导致导电性的最低降低(9.3%)。

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