Investigation of Structural, Morphological, Mechanical, Thermal and Optical Properties of PVA-ZnO Nanocomposites

Kayış, Ali; Kavgacı, Mustafa; Yaykaşlı, Hakan; Kerli, Süleyman; Eskalen, Hasan

doi:10.1134/s1087659621050084

Cited by 25 publications

(13 citation statements)

References 45 publications

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“…15 Along with control of dispersion, particle size, and shape of NPs, PVA also act as a capping agent, which allows tailoring of electrical, 16 optical, 17 structural, 18 and thermal properties. 19 In the current study PVA embedded with 0.04 M, 0.06 M, and 0.08 M CdS are synthesized are synthesized and there structural, optical, electrical and photoluminescence parameters are investigated. These nanocomposites were UV exposed for different period of time.…”

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confidence: 99%

Synergic Effect of CdS Nano Additives and UV Exposure on Properties of PVA/CdS Nanocomposite

Nain

Chahal

Dahiya

et al. 2023

ECS J. Solid State Sci. Technol.

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PVA/CdS nanocomposites with varying amounts of CdS NPs in PVA were synthesized and subjected to UV irradiation. An absorption peak around 450 nm indicates the presence of CdS NPs in PVA. UV irradiation causes red shift in wavelength in absorption spectra, suggesting an increase in particle size after UV exposure. A decrease in transmittance of PVA after embedding NPs and further with UV exposure suggests that these can be used for UV-blocking devices. The band gap of PVA decreased with an increase in NPs and UV exposure time. An increase in the refractive index of PVA after embedding CdS NPs was observed, further increasing with increasing concentration of NPs and with increase of UV exposure. Structural induced changes in PVA after embedding NPs and with UV exposure were analyzed by Fourier transform infra-red spectroscopy. Field-emission scanning electron microscopy and energy-dispersive spectroscopy analysis confirmed the presence and distribution of NPs. Photoluminescence spectrum exhibits quantum confinement effect of CdS NPs embedded in polymer matrix. The thermal nature of nanocomposite films was investigated by DSC and TG. Dependence of electrical parameters on concentration of NPs and UV exposure time were studied and explained on the basis of formation charge-transfer complexes inside matrix.

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confidence: 99%

Synergic Effect of CdS Nano Additives and UV Exposure on Properties of PVA/CdS Nanocomposite

Nain

Chahal

Dahiya

et al. 2023

ECS J. Solid State Sci. Technol.

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“…When comparing the peaks formed by similar groups of ZnO and PVA, the PVA peaks were sharper and more distinct, whereas the Zn–O peaks were larger and smaller. The PVA/ZnO groups formed peaks in the mean of the other two groups at various concentrations [ 26 , 27 ]. Kandulna and Choudhary showed that O–H bonds formed between PVA and ZnO in their studies.…”

Section: Resultsmentioning

confidence: 99%

Manufacturing of Zinc Oxide Nanoparticle (ZnO NP)-Loaded Polyvinyl Alcohol (PVA) Nanostructured Mats Using Ginger Extract for Tissue Engineering Applications

et al. 2022

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In this research, as an alternative to chemical and physical methods, environmentally and cost-effective antimicrobial zinc oxide nanoparticles (ZnO NP) were produced by the green synthesis method. The current study focuses on the production of ZnO NP starting from adequate precursor and Zingiber officinale aqueous root extracts (ginger). The produced ZnO NP was loaded into electrospun nanofibers at different concentrations for various tissue engineering applications such as wound dressings. The produced ZnO NPs and ZnO NP-loaded nanofibers were examined by Scanning Electron Microscopy (SEM) for morphological assessments and Fourier-transform infrared spectrum (FT-IR) for chemical assessments. The disc diffusion method was used to test the antimicrobial activity of ZnO NP and ZnO NP-loaded nanofibers against three representatives strains, Escherichia coli (Gram-negative bacteria), Staphylococcus aureus (Gram-positive bacteria), and Candida albicans (fungi) microorganisms. The strength and stretching of the produced fibers were assessed using tensile tests. Since water absorption and weight loss behaviors are very important in tissue engineering applications, swelling and degradation analyses were applied to the produced nanofibers. Finally, the MTT test was applied to analyze biocompatibility. According to the findings, ZnO NP-loaded nanofibers were successfully synthesized using a green precipitation approach and can be employed in tissue engineering applications such as wound dressing.

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“…On the other hand, the maximum tensile strength was achieved at 20% zinc oxide in PVA. [ 4 ] The authors of [ 6 ] found that the introduction of Mg–Al layered structures into PVA leads to a decrease in the tensile strength of polymer composites. In this work, we have shown that the new one‐step method is a promising route for preparing polymer composites with improved mechanical properties.…”

Section: Resultsmentioning

confidence: 99%

“…Currently, layered double hydroxides (LDHs) are considered as fillers for polymers because of their hydrophilic surface and hydroxyl groups in the layers. [4][5][6][7][8][9] It was established that the introduction of LDH can have either positive or negative effects on thermal and mechanical properties. For example, Zhao et al [5] was found that the incorporation of ammonium polyphosphate with LDH (0.3% Ni-Al, Zn-Al, Ni-Fe, and Zn-Fe) leads to a negative effect on the mechanical properties but creates more thermally stable polymer composites.…”

Section: Introductionmentioning

confidence: 99%

Composites based on PVA and Al–Zn structures with excellent mechanical properties

et al. 2022

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Films of polyvinyl alcohol (PVA) with Al–Zn fillers were prepared using underwater pulsed plasma. Electrodes made of these materials were used as a source of Al and Zn structures. During the action of the plasma, the electrodes were sprayed. α‐Al2O3, ZnO, and Zn–Al layered double hydroxides were formed. X‐ray and Fourier transform infrared spectroscopy (FTIR) analyzes of the composites obtained showed a strong interaction between the polymer and fillers. The mechanical properties of the films showed that the incorporation of aluminum and zinc structures into the polymer matrix under the action of plasma leads to a giant increase in the mechanical strength of PVA at a filler concentration of 0.5%–3%. The electrical characteristics of polymer composites showed the non‐linear behavior of J–Vcurves. The results obtained show one of the new range of applications of pulsed underwater plasma in the production of reinforced polymer composites.

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Investigation of Structural, Morphological, Mechanical, Thermal and Optical Properties of PVA-ZnO Nanocomposites

Cited by 25 publications

References 45 publications

Synergic Effect of CdS Nano Additives and UV Exposure on Properties of PVA/CdS Nanocomposite

Synergic Effect of CdS Nano Additives and UV Exposure on Properties of PVA/CdS Nanocomposite

Manufacturing of Zinc Oxide Nanoparticle (ZnO NP)-Loaded Polyvinyl Alcohol (PVA) Nanostructured Mats Using Ginger Extract for Tissue Engineering Applications

Composites based on PVA and Al–Zn structures with excellent mechanical properties

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