Relative humidity sensor based on MWCNTs-doped polymer microfiber

2017 7th IEEE International Conference on System Engineering and Technology (ICSET) Pub Date : 2017-10-01 DOI:10.1109/ICSENGT.2017.8123440

N. M. Isa, N. Irawati, H. A. Rahman, M. H. M. Yusoff, S. Harun, F. Ahmad

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引用次数: 1

Abstract

A relative humidity sensor based on Multi Walled Carbon Nanotubes (MWCNTs) doped with polymer Poly(methyl methacryate) was proposed in this paper. The fabrication technique applied in this paper is a simple direct drawing method that was able to produce a uniform waist microfiber with a minimum diameter of 5 μm with a length of 5 mm. This microfiber was tested on a different range of relative humidity from 45% to 80%. Performance of the fabricated sensor were then analyzed, focusing at the sensitivity of undoped and MWCNTs-doped polymer microfiber. Based on the results, MWCNTs-doped polymer microfiber exhibits higher sensitivities and better resolution compared to undoped polymer microfiber, with sensitivity and resolution obtained at 0.3341 dBm/% and 1.649% respectively. Indeed, the sensor exhibited a high reliability as well as repeatability. Therefore, this study provides a good platform for enhancing the concept of doping nanomaterials like MWCNTs into PMMA for a chemical and biosensor application.

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基于mwcnts掺杂聚合物微纤维的相对湿度传感器

提出了一种基于多壁碳纳米管(MWCNTs)掺杂聚合物聚甲基丙烯酸甲酯的相对湿度传感器。本文采用的制作技术是一种简单的直接拉丝法，可以制作出最小直径为5 μm，长度为5 mm的均匀腰型超细纤维。这种超细纤维在相对湿度从45%到80%的不同范围内进行了测试。然后分析了传感器的性能，重点分析了未掺杂和掺杂纳米碳管的聚合物微光纤的灵敏度。结果表明，与未掺杂的聚合物微光纤相比，掺杂mwcnts的聚合物微光纤具有更高的灵敏度和更好的分辨率，灵敏度和分辨率分别为0.3341 dBm/%和1.649%。实际上，该传感器具有很高的可靠性和可重复性。因此，本研究为将MWCNTs等纳米材料掺杂到PMMA中用于化学和生物传感器的应用提供了一个很好的平台。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2017 7th IEEE International Conference on System Engineering and Technology (ICSET)

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