The Role of ZnO Nanofillers in Enhancing the Properties of PVA/PVP Blend Nanocomposites

Jambaladinni, Sahebagouda; Bhat, J. S.

doi:10.1007/s40995-021-01177-2

Cited by 5 publications

(4 citation statements)

References 41 publications

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“…As the percentage of nanoparticles increased, agglomerated surfaces gradually disappeared along with small cracks, and the size of dispersed nanoparticles decreased when percentage of incorportated nanoparticles incresed from which roughness on the surface was decreased. The appearance of the smooth surface of PVP/KC blend nanocomposite films indicated the miscibility of ZnO, kappa carrageenan, and PVP polymers, which is due to the interaction between the hydroxyl groups present on polymer matrices 55 …”

Section: Resultsmentioning

confidence: 99%

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Synthesis and characterization of polymeric composites with Cascabela thevetia incorporated zinc nanoparticles: Food packaging applications

Rajamani

Gani

Raghu

et al. 2023

J of Applied Polymer Sci

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BackgroundMost food packaging materials are non‐biodegradable and do not protect against microbial growth. In the present study, we have synthesized and characterized environmentally friendly packaging material using nanotechnology.ObjectiveCascabela thevetia incorporated zinc nanoparticles and PVP/KC blended films of various ratios were synthesized using the solvent casting method. The nanoparticles were tested for their physical and chemical properties. The antimicrobial activity of films and an in vivo toxicity studies were performed using Drosophila as a model system.ResultsThe thickness of blend films increases as the concentration of nanoparticles is enhanced. The UV–visible spectra of prepared ZnO nanoparticles exhibited maximum absorbance wavelength (λmax) at 360–380 nm. The nanocomposite films' TS and EB and Y were also increased. Scanning electron microscopy (SEM) analysis suggested that all the films were homogenous, crack‐free, and possessed continuous bubble‐free surfaces. FT‐IR results showed chemical interaction between PVP/KC and Zinc oxide nanoparticles. Fifth sample showed greater antibacterial activity. A toxicity study showed that the flies survived >92% in all the samples up to 10 days of continuous feeding, which signifies that the material has low toxicity.ConclusionNanocomposite films can be used as antimicrobial food packaging material to enhance the shelf‐life of food.

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Section: Resultsmentioning

confidence: 99%

“…The appearance of the smooth surface of PVP/KC blend nanocomposite films indicated the miscibility of ZnO, kappa carrageenan, and PVP polymers, which is due to the interaction between the hydroxyl groups present on polymer matrices. 55…”

Section: Sem Analysismentioning

confidence: 99%

Synthesis and characterization of polymeric composites with Cascabela thevetia incorporated zinc nanoparticles: Food packaging applications

Rajamani

Gani

Raghu

et al. 2023

J of Applied Polymer Sci

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“…[14,19] Furthermore, the good compatibility of PVP with polyvinyl alcohol (PVA) also enhances the film-forming properties of the PVP/PVA blended polymers. [20] The objective of this study was to extract cellulose from peanut shells (Arachis hypogaea) and develop cellulose based low-cost biodegradable nanocomposite of PVP/PVA loaded with ZnO nanoparticles with higher rate of degradation by exploring their physicochemical properties.…”

Section: Introductionmentioning

confidence: 99%

“…[ 14,19 ] Furthermore, the good compatibility of PVP with polyvinyl alcohol (PVA) also enhances the film‐forming properties of the PVP/PVA blended polymers. [ 20 ]…”

Section: Introductionmentioning

confidence: 99%

Peanut Shells Cellulose Based Biodegradable Nanocomposites with Polyvinyl Pyrrolidone (PVP) and Polyvinyl Alcohol (PVA)

Pokhrel

Karki

2023

Macromolecular Symposia

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Cellulose is the most abundant plant based biopolymer on earth which provides excellent properties to polymer nanocomposites such as high mechanical properties, high strength, low thermal expansion properties, low density, and biodegradability. The recent demand in materials research is to develop smart materials which comprise excellent features such as enhanced mechanical properties and thermal stability, biodegradability, being eco‐friendly, and low‐cost. Therefore, the objective of this research is to extract cellulose fibers from agricultural waste, i.e., peanut shell as an abundant source of agricultural byproducts and explore the potentiality of polyvinyl alcohol (PVA)/polyvinyl pyrrolidone (PVP)/cellulose blends as an alternative of conventional plastics. The blend which has higher concentration of cellulose shows the higher acid absorption. FT‐IR of PVA/PVP/cellulose confirms the good interaction between the constituents of the blend. Antimicrobial activities of cellulose and their blend with polymer are evaluated and found maximum against Gram negative bacteria (Escherichia coli) than the Gram positive bacteria (Bacillus subtilis). Degradation behavior of blend is found directly proportional to cellulose content, i.e., highest shown by 20% cellulose film. Hence, PVP/PVA/cellulose blends show desired degradable properties and hence can be an alternative for use of conventional plastics.

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The Structural Changes and Its Impact on Optical Dispersion of PVA/PVP Embedded with Zinc Sulphate Nanoparticles and Irradiated with Electron-Beam

Salah

Abdelmaksoud

Abdel-Wahab

2023

J Inorg Organomet Polym

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PVA/PVP films doped with zinc sulphate heptahydrate (ZnSO4·7H2O) nanoparticles (NPs) are prepared using an in situ chemical method. Furthermore, as-prepared samples are irradiated with an electron beam at doses of 20, 25, 30, 35, and 40 kGy. Elemental analyses using energy dispersive X-ray spectroscopy (EDXS) of the fresh films showed the existence of both zinc oxide and zinc sulphide as main and minor phases in sequence. Moreover, scanning electron microscope measurements (SEM) revealed that embedded Zn NPs have regular and evenly distributed pores inside PVA/PVP network. On the other hand, the structural variations due to e-beam irradiation are monitored by a high-resolution-transmission electron microscope (HR-TEM), which displayed that encapsulated Zn NPs are well dispersed and capped inside PVA/PVP structural network. The measured optical absorption coefficient (α) of PVA/PVP/zinc sulphate nanocomposite films showed an increase against e-beam dose. Moreover, the calculated optical energy gap, Eg, exhibited a reduction from 3.31 to 2.82 eV against the increase in irradiation dose. Evaluated values of wavelength at zero material dispersion (WZMD) indicated that e-beam irradiation can tune the structure of the studied samples to be used as a data transmitter in optical fiber telecommunication in the IR spectral range of 1.6842–1.0351 μm.

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The Role of ZnO Nanofillers in Enhancing the Properties of PVA/PVP Blend Nanocomposites

Cited by 5 publications

References 41 publications

Synthesis and characterization of polymeric composites with Cascabela thevetia incorporated zinc nanoparticles: Food packaging applications

Synthesis and characterization of polymeric composites with Cascabela thevetia incorporated zinc nanoparticles: Food packaging applications

Peanut Shells Cellulose Based Biodegradable Nanocomposites with Polyvinyl Pyrrolidone (PVP) and Polyvinyl Alcohol (PVA)

The Structural Changes and Its Impact on Optical Dispersion of PVA/PVP Embedded with Zinc Sulphate Nanoparticles and Irradiated with Electron-Beam

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