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المؤلفParangusan, Hemalatha
المؤلفBhadra, Jolly
المؤلفAhmad, Zubair
المؤلفMallick, Shoaib
المؤلفTouati, Farid
المؤلفAl-Thani, Noora
تاريخ الإتاحة2022-05-22T11:03:02Z
تاريخ النشر2021
اسم المنشورRSC Advances
المصدرScopus
المعرّفhttp://dx.doi.org/10.1039/d1ra02842a
معرّف المصادر الموحدhttp://hdl.handle.net/10576/31396
الملخصThe electrospinning technique has been successfully used to prepared micro-fibers of the poly(lactic acid)/polyaniline–zinc oxide (PLA/PANI–ZnO) composite. The polyaniline–zinc oxide (PANI–ZnO) nanocomposites are synthesized by hydrothermal and in situ polymerization methods. X-ray diffraction techniques are used to study the structural properties of the PLA/PANI–ZnO composite fibers and the PANI–ZnO nanocomposite. The average crystallite size of the PANI–ZnO nanocomposite is found to be 36 nm. The morphology and diameter of the composite fibers are analyzed by scanning electron microscopy (SEM). The average fiber diameter of the pure poly(lactic acid) (PLA) fiber is around 2.5 μm and that of the PLA/PANI–ZnO composite fiber is around 1.4 μm. Differential scanning calorimetry (DSC) provides the thermal properties of the PLA/PANI–ZnO composite fibers. The melting temperature (Tm) for the pure PLA is observed at 149.3 °C, and it is shifted to 153.0 °C for the PLA/PANI–ZnO composite fibers. The enhanced thermal properties of the composite fibers are due to the interaction between the polymer and the nanoparticles. The water contact angle measurements probe the surface hydrophilicity of the PLA/PANI–ZnO composite fibers. The role of the PANI–ZnO nanocomposite on the sensing behavior of PLA fibers has also been investigated. The humidity sensing properties of the composite fiber based sensor are studied in the relative humidity (RH) range of 20–90% RH. The experimental results show that the composite fiber exhibited good response (85 s) and recovery (120 s) times. These results indicate that the one-dimensional (1D) fiber structure enhances the humidity sensing properties.
اللغةen
الناشرRoyal Society of Chemistry
الموضوعComposite structures
Contact angle
Crystallite size
Differential scanning calorimetry
Electrospinning
Humidity sensors
Hydrophilicity
II-VI semiconductors
Lactic acid
Morphology
Nanocomposites
Oxide minerals
Polyaniline
Scanning electron microscopy
Thermodynamic properties
Zinc oxide
Average fiber diameters
Electrospinning techniques
Electrospun fibers
Fiber structures
Humidity sensing property
Surface hydrophilicity
Water contact angle measurement
X-ray diffraction techniques
Fibers
العنوانHumidity sensor based on poly(lactic acid)/PANI-ZnO composite electrospun fibers
النوعArticle
الصفحات28735-28743
رقم العدد46
رقم المجلد11
dc.accessType Abstract Only


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