Abstract
In this study, the fibers consisted of poly(methyl methacrylate) (PMMA) and polyaniline (PANI) were fabricated by electrospinning method to detect relative humidity (RH). Moreover, various concentrations of PANI/PMMA were prepared and modified by UV/ozone treatment to increase the sensitivity of relative humidity. The characteristics of the PANI/PMMA electrospun fibers were measured by Fourier transformed infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and ultraviolet-visible (UV–vis) spectroscopy, respectively. By the result of PANI/PMMA fibers extinction change with 30 min UV/ozone treatment, the sensor showed the highest sensitivity. In addition, the sensitivity for detecting RH increased as RH increased from 33 to 98% at room temperature. The experimental results revealed that at 2.0 wt% concentration, the PANI/PMMA fibers had better response, better sensing performance, and showed a clearer indicator compared to other PANI/PMMA concentrations.
| Original language | English |
|---|---|
| Pages (from-to) | 250-257 |
| Number of pages | 8 |
| Journal | Journal of the Taiwan Institute of Chemical Engineers |
| Volume | 99 |
| DOIs | |
| State | Published - 06 2019 |
Bibliographical note
Publisher Copyright:© 2019 Taiwan Institute of Chemical Engineers
Keywords
- Electrospinning
- Polyaniline
- Relative humidity
- Treatment
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