Optical and structural changes of TiO 2 /PVA nanocomposite induced laser Radiation

Shehap, A. M.; Elsayed, Khaled A.; Akil, Dana S.

doi:10.1016/j.physe.2016.10.001

Cited by 26 publications

(16 citation statements)

References 11 publications

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“…[ 25 ] Shehap et al investigated the influence of laser irradiation on the optical and structural features of TiO 2 /PVA. [ 26 ] It uses an appealing technique to investigate the specific electrical conductivity and mechanism of TiO 2 tiny polaron hopping with distinct phases inhibited by PVA polymer. Yang used a solution casting process to save PVA/TiO 2 composite and described it as suitable for use in a methanol fuel cell.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of the Dielectric Properties of Polyvinyl Alcohol by Adding TiO₂Nanoparticles

El-Gamal

2022

Physica Status Solidi (a)

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Dielectric polymeric materials with high dielectric performance have recently been investigated for potential applications in a wide range of fields, especially electrical engineering and microelectronics, and in storage with a high energy density. [1,2] A polymer dielectric material is marked by mechanical flexibility, compatibility with polymers used to support electronic circuits, good processing performance, and low cost. [3] Low dielectric loss and high dielectric constant (ε 0 ) are required for microelectronic applications of these materials.Unfortunately, achieving a high ε 0 of a polymer dielectric material is difficult, in comparison to dielectric oxides, polymers have a very low ε 0 value by nature. Polyvinyl alcohol (PVA) is a promising choice for a good polymer dielectric among the other polymer gate insulators because of its high dielectric constant, about 7.8. [4] Also, PVA has been used in a variety of industries due to its strong thermal stability, water-solubility, chemical resistance to oils, and chemical stability, as well as the ability to form films. [5,6] There have been several efforts to develop high ε 0 polymer matrix composites. Filling a polymer with nano metal oxides that have a high ε 0 value is a viable technique to create flexible composites with improved ε 0 values. Nano metal oxides of transition elements such as copper, zinc, titanium, and others improve the physical and mechanical properties of PVA, and its reactive hydroxyl groups aid in the dispersion of nano-oxides. [7] The chemical nature of the nanofillers, as well as concentration, shape, size, and distribution, all influence composite properties. [8] TiO 2 nanoparticles (NPs) have gained attention among the many distinct forms of nanofillers, because it can exhibit high ε 0 (10 2 ) at room temperature and can use as high a permittivity nanofiller to enhance the ε 0 values of PVA composites. [9][10][11] Also, its chemical stability, excellent optical, refractive index, nontoxicity, low cost, and physicochemical features have sparked a lot of research. [12][13][14][15] TiO 2 NPs can be used in a variety of applications like photovoltaics, photocatalysis, solar energy conversion, and ultrasonic sensors. [16][17][18][19][20][21] Although much research has been done on the mechanical, thermal, and structural characteristics of PVA/TiO 2 nanocomposites in recent years. [22][23][24] Hdidar et al. looked at how rutile TiO 2 adding affected the thermal and electrical properties of PVA nanocomposite samples. [25] Shehap et al. investigated the influence of laser irradiation on the optical and structural features of TiO 2 /PVA. [26] It uses an appealing technique to investigate the specific electrical conductivity and mechanism of TiO 2 tiny polaron hopping with distinct phases inhibited by PVA polymer. Yang used a solution casting process to save PVA/TiO 2 composite and described it as suitable for use in a methanol fuel cell. [27] Wang et al. [28] recently described the presence of PVA, a regulated crystalline of titanium dioxide...

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Section: Introductionmentioning

confidence: 99%

Enhancement of the Dielectric Properties of Polyvinyl Alcohol by Adding TiO₂Nanoparticles

El-Gamal

2022

Physica Status Solidi (a)

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“…Since PVA/TiO 2 couple has improved optical and mechanical properties Shehap et al [98] have studied the effect of laser irradiation on the structural and optical properties of TiO 2 /PVA. When subjected to lasers of various wavelengths, the absorbance, absorption edge, band gap, and refractive index of the nanocomposite films were all changed in different ways.…”

Section: Pva With Snsmentioning

confidence: 99%

PVA and PMMA nano-composites: a review on strategies, applications and future prospects

Kalyani

Anandan²,

Sridhar³

et al. 2023

Mater. Res. Express

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Nanotechnology has facilitated unique ways of developing novel nano-composites. In that sense, polymer-based nano-composites are being extensively researched for their outstanding properties as a result of incorporating nano-fillers in the polymer matrix. They have activated enormous research interests owing to their potential in addressing environmental issues, packaging, optics, electronics, battery electrolytes, pneumatic actuation, molecular separations, sensors, biomedical applications, etc. Hence, the authors intend to consolidate reported information about these polymer matrices, diverse inorganic nanofillers, and nano-filled polymer composites for improvement in properties and future advanced applications. The review exhaustively covers 15 years of literature on theoretical, experimental, and application aspects of PVA & PMMA-based nano-composites. It also summarizes the structure-property correlations that govern their performance. Hence this review is hoped to provide the readers with stimulating insights on strategies, noteworthy challenges, and future opportunities/prospects in developing polymer nano-composites that may cater to the need of our society and scientific industries as well.

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“…The mixing of filler, such as starch [14], clay [15], sugarcane [16], wood dust [17], TiO 2 [18], cement [19], organo-ceramics [20] and carbon nanotubes [21] with PVA is a modern technique for the development of biodegradable composite. PVA composites have broad applications in the food packaging by film [22] and in optical holography fiber [23], sizing and finishing in textile industries, adhesives, coatings, emulsifiers, colloidal stabilizers, solar cell [18] and fuel cell [24].…”

Section: Introductionmentioning

confidence: 99%

Red mud reinforced polyvinyl alcohol composite films: synthesis, chemical, mechanical and thermal properties

2019

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Nowadays biodegradable polymer draws much attention to the researcher compared to the petroleum-based nonbiodegradable polymer due to the environmental and energy crisis. Aluminum industry waste red mud (RM) reinforced with polyvinyl alcohol (PVA) organic-inorganic composite film was synthesized by sol-gel method. The effects of sodium lauryl sulfate (SLS) as a compatibilizer on the composite were investigated. The composites were characterized by UV absorption, Fourier transforms infrared spectrophotometer (FTIR), X-ray diffraction, scanning electron microscopy (SEM), EDX. Chemical, mechanical and thermal properties of the composites were investigated with different amount of red mud-PVA and also the comparison between them without and with SLS addition. Physical and chemical bonding in the PVA, PVA-RM, and PVA-RM-SLS were shown through FTIR spectra. SEM images exhibit excellent compatibility between PVA and RM in the composite. Degree of swelling and tensile strength were increased by 71.48% and 194.88% respectively, and again percentage of elongation at break and solubility were decreased by 98.07% and 78.07% respectively for the PVA-RM-SLS composite compared to virgin PVA. TGA thermogram reveals that PVA-RM-SLS system had more thermal stability than pure PVA. All the results showed excellent adhesion between PVA and red mud and established the effect of RM as filler and SLS as compatibilizer. This composite is suitable as packaging materials.

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Optical and structural changes of TiO 2 /PVA nanocomposite induced laser Radiation

Cited by 26 publications

References 11 publications

Enhancement of the Dielectric Properties of Polyvinyl Alcohol by Adding TiO₂Nanoparticles

Enhancement of the Dielectric Properties of Polyvinyl Alcohol by Adding TiO₂Nanoparticles

PVA and PMMA nano-composites: a review on strategies, applications and future prospects

Red mud reinforced polyvinyl alcohol composite films: synthesis, chemical, mechanical and thermal properties

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Optical and structural changes of TiO 2 /PVA nanocomposite induced laser Radiation

Cited by 26 publications

References 11 publications

Enhancement of the Dielectric Properties of Polyvinyl Alcohol by Adding TiO2Nanoparticles

Enhancement of the Dielectric Properties of Polyvinyl Alcohol by Adding TiO2Nanoparticles

PVA and PMMA nano-composites: a review on strategies, applications and future prospects

Red mud reinforced polyvinyl alcohol composite films: synthesis, chemical, mechanical and thermal properties

Contact Info

Product

Resources

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Enhancement of the Dielectric Properties of Polyvinyl Alcohol by Adding TiO₂Nanoparticles

Enhancement of the Dielectric Properties of Polyvinyl Alcohol by Adding TiO₂Nanoparticles