Preparation of a Clay Composite Containing Poly(o-toluidine) and Halloysite, and Examining of Its Performance as a Humidity Sensor
This study outlines the production of an electrically conductive clay-based composite containing the halloysite as clay mineral and poly(o-toluidine) (POT) as a conductive filler. In the study, conductive POT/halloysite composite was obtained by in situ oxidative polymerization of o-toluidine using...
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| Format: | Article |
| Language: | English |
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Düzce University
2021-04-01
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| Series: | Düzce Üniversitesi Bilim ve Teknoloji Dergisi |
| Subjects: | |
| Online Access: | https://dergipark.org.tr/tr/download/article-file/1433037 |
| _version_ | 1826544748889899008 |
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| author | Meral Karakışla Meryem Kalkan Erdoğan |
| author_facet | Meral Karakışla Meryem Kalkan Erdoğan |
| author_sort | Meral Karakışla |
| collection | DOAJ |
| description | This study outlines the production of an electrically conductive clay-based composite containing the halloysite as clay mineral and poly(o-toluidine) (POT) as a conductive filler. In the study, conductive POT/halloysite composite was obtained by in situ oxidative polymerization of o-toluidine using ammonium persulphate (APS) as an oxidant between the halloysite layers. By changing the polymerization conditions such as polymerization time, o-toluidine concentration, APS, and the concentration of HCl solution used as the reaction medium, the composite with the highest conductivity (7.5×10-5 S.cm-1) was obtained. Structural and morphological changes and thermal behaviors that occurred after the composite formation was revealed using various characterization techniques such as FTIR, XRD, TGA, and SEM. The usability of the prepared POT/halloysite composite as humidity sensing material was tested in comparison with the pure POT component of the composite at a relative humidity (% RH) varied between 41-94 (%). Accordingly, it was found that the composite exhibited a fairly regular resistance change to varying relative humidity compared to pure POT polymer. |
| first_indexed | 2024-03-07T23:15:05Z |
| format | Article |
| id | doaj.art-70ff721cb909431d9388b1268bc84bb1 |
| institution | Directory Open Access Journal |
| issn | 2148-2446 |
| language | English |
| last_indexed | 2025-03-14T05:06:54Z |
| publishDate | 2021-04-01 |
| publisher | Düzce University |
| record_format | Article |
| series | Düzce Üniversitesi Bilim ve Teknoloji Dergisi |
| spelling | doaj.art-70ff721cb909431d9388b1268bc84bb12025-03-06T18:57:27ZengDüzce UniversityDüzce Üniversitesi Bilim ve Teknoloji Dergisi2148-24462021-04-019252153410.29130/dubited.83643197Preparation of a Clay Composite Containing Poly(o-toluidine) and Halloysite, and Examining of Its Performance as a Humidity SensorMeral Karakışla0https://orcid.org/0000-0001-7036-094XMeryem Kalkan Erdoğan1https://orcid.org/0000-0002-2905-4438ANKARA UNIVERSITYANKARA UNIVERSITYThis study outlines the production of an electrically conductive clay-based composite containing the halloysite as clay mineral and poly(o-toluidine) (POT) as a conductive filler. In the study, conductive POT/halloysite composite was obtained by in situ oxidative polymerization of o-toluidine using ammonium persulphate (APS) as an oxidant between the halloysite layers. By changing the polymerization conditions such as polymerization time, o-toluidine concentration, APS, and the concentration of HCl solution used as the reaction medium, the composite with the highest conductivity (7.5×10-5 S.cm-1) was obtained. Structural and morphological changes and thermal behaviors that occurred after the composite formation was revealed using various characterization techniques such as FTIR, XRD, TGA, and SEM. The usability of the prepared POT/halloysite composite as humidity sensing material was tested in comparison with the pure POT component of the composite at a relative humidity (% RH) varied between 41-94 (%). Accordingly, it was found that the composite exhibited a fairly regular resistance change to varying relative humidity compared to pure POT polymer.https://dergipark.org.tr/tr/download/article-file/1433037conductive clay compositepoly(o-toluidine)halloysitehumidity sensingiletken kil kompozitipoli(o-toluidin)halloysitnem sensörü |
| spellingShingle | Meral Karakışla Meryem Kalkan Erdoğan Preparation of a Clay Composite Containing Poly(o-toluidine) and Halloysite, and Examining of Its Performance as a Humidity Sensor Düzce Üniversitesi Bilim ve Teknoloji Dergisi conductive clay composite poly(o-toluidine) halloysite humidity sensing iletken kil kompoziti poli(o-toluidin) halloysit nem sensörü |
| title | Preparation of a Clay Composite Containing Poly(o-toluidine) and Halloysite, and Examining of Its Performance as a Humidity Sensor |
| title_full | Preparation of a Clay Composite Containing Poly(o-toluidine) and Halloysite, and Examining of Its Performance as a Humidity Sensor |
| title_fullStr | Preparation of a Clay Composite Containing Poly(o-toluidine) and Halloysite, and Examining of Its Performance as a Humidity Sensor |
| title_full_unstemmed | Preparation of a Clay Composite Containing Poly(o-toluidine) and Halloysite, and Examining of Its Performance as a Humidity Sensor |
| title_short | Preparation of a Clay Composite Containing Poly(o-toluidine) and Halloysite, and Examining of Its Performance as a Humidity Sensor |
| title_sort | preparation of a clay composite containing poly o toluidine and halloysite and examining of its performance as a humidity sensor |
| topic | conductive clay composite poly(o-toluidine) halloysite humidity sensing iletken kil kompoziti poli(o-toluidin) halloysit nem sensörü |
| url | https://dergipark.org.tr/tr/download/article-file/1433037 |
| work_keys_str_mv | AT meralkarakısla preparationofaclaycompositecontainingpolyotoluidineandhalloysiteandexaminingofitsperformanceasahumiditysensor AT meryemkalkanerdogan preparationofaclaycompositecontainingpolyotoluidineandhalloysiteandexaminingofitsperformanceasahumiditysensor |