粒子状物質測定を目的としたQCMの親水性・疎水性表面修飾材料の検討とそのガス応答特性

カテゴリ: 論文誌(論文単位)

グループ名: 【E】センサ・マイクロマシン部門

発行日: 2022/11/01

タイトル(英語): Study on Hydrophilic and Hydrophobic Surface Coating Materials of QCM for Particulate Matter Measurement and its Response Characteristics to Gas

著者名: 齊藤　正志（東京電機大学大学院 工学研究科 電気電子工学専攻），安藤　毅（千葉工業大学 工学部 電気電子工学科），小林　佳弘（東京電機大学 工学部 機械工学科）

著者名(英語): Masashi Saito (Department of Electrical and Electronic Engineering, Graduate School of Engineering, Tokyo Denki University), Ki Ando (Department of Electrical and Electronic Engineering, Chiba Institute of Technology), Yoshihiro Kobayashi (Department of Mechanical Engineering, Tokyo Denki University)

キーワード: QCM，PMセンサ，ガスセンサ，親水性，疎水性，選択性_x000D_　　QCM，PM sensor，gas sensor，hydrophilic property，hydrophobic property，selectivity

要約(英語): Particulate matter (PM) exhausted from diesel engines is categorized into carbon soot, hydrophilic PM, and hydrophobic PM. Hydrophilic and hydrophobic PM are composed of condensing moisture or oil content on soot, respectively. PM measurement methods commonly used today cannot have selectivity between these PM properties because these methods collect PM on a filter by forced inertial impact. Therefore, we proposed collecting PM on quartz crystal microbalance (QCM) under natural adsorption. In this study, we coated surfaces of QCMs with hydrophilic or hydrophobic materials and investigated their selectivity between volatile organic gases and moisture that had hydrophilic or hydrophobic groups.In the result, a polystyrene-coated QCM showed selectivity for toluene gas. It was possible that this selectivity was affected by π-π interaction of benzene circles between polystyrene and toluene. Similarly, a polyvinyl alcohol-coated QCM showed selectivity for moisture by the contribution of reciprocal hydroxy groups. Moreover, a cellulose acetate-coated QCM responded to ethanol gas significantly, although it was unstable. Any coating materials did not contribute to increasing response to iso-octane gas that had methyl groups. The use of gas was adequate to consider natural adsorption and selectivity. In the next study, we perform experiments using hydrophilic and hydrophobic PM.

本誌: 電気学会論文誌E（センサ・マイクロマシン部門誌） Vol.142 No.11 （2022） 特集：環境・生体情報の可視化・リアルタイムモニタリング

本誌掲載ページ: 293-299 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejsmas/142/11/142_293/_article/-char/ja/