Dielectric Response of PVC and LDPE Nanocomposites Upon Functionalization of Their Containing Nanoparticles

Abdel-Gawad, Nagat M. K.; E.Y.El-Kady,; Dein, Adel Z. El; Mansour, Diaa‐Eldin A.; Ahmed, Hanaa M.; Darwish, Mohamed M. F.

doi:10.1109/mepcon.2018.8635269

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…Although there are fewer reports on the inclusion of photocatalysts for environmental remediation through advanced oxidation processes (AOPs), researchers have been long studying the inclusion of photocatalyst for membrane performance and properties enhancement and some conclusions can be adapted for the photocatalytic property. Among them, the photocatalyst mass was the most studied variable.…”

Section: Introductionmentioning

confidence: 99%

Solution mixing preparation of PVDF/ZnO polymeric composite films engineered for heterogeneous photocatalysis

Zanrosso

Piazza

Lansarin

2019

J of Applied Polymer Sci

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Despite the efforts of the scientific community, carrying out photocatalyst immobilization so that industrial application of photocatalysis becomes economically feasible is still a challenge to be overcome. In this work, polyvinylidene fluoride (PVDF)/ZnO composites were prepared by solution mixing based on solid knowledge of membrane technology and with the help of a powerful experimental design for systematic evaluation of the interaction among variables. A strategy for variable screening was used, followed by a complete evaluation at two levels, leading to predictive models. As a result, photocatalyst amount, pore agent concentration, and wet thickness were the most significant in the target molecule discoloration. With this, it was possible to obtain a 40 and 186% enhancement in photocatalytic efficiency compared to previous results and simple photolysis, respectively. Finally, the samples were characterized by FTIR‐ATR, XRD, and SEM and chemical, crystalline and morphological differences were observed both with nanoparticle and pore agent incorporation. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2020, 137, 48417.

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Section: Introductionmentioning

confidence: 99%

Solution mixing preparation of PVDF/ZnO polymeric composite films engineered for heterogeneous photocatalysis

Zanrosso

Piazza

Lansarin

2019

J of Applied Polymer Sci

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“…In future work, the application of nanotechnology for enhancing the breakdown voltage strength of various insulating materials [44][45][46][47][48][49][50][51][52] in the presence of different barrier effects will be investigated, specifically in the transformer insulating oil.…”

Section: Discussionmentioning

confidence: 99%

Accurate Insulating Oil Breakdown Voltage Model Associated with Different Barrier Effects

et al. 2021

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In modern power systems, power transformers are considered vital components that can ensure the grid’s continuous operation. In this regard, studying the breakdown in the transformer becomes necessary, especially its insulating system. Hence, in this study, Box–Behnken design (BBD) was used to introduce a prediction model of the breakdown voltage (VBD) for the transformer insulating oil in the presence of different barrier effects for point/plane gap arrangement with alternating current (AC) voltage. Interestingly, the BBD reduces the required number of experiments and their costs to examine the barrier parameter effect on the existing insulating oil VBD. The investigated variables were the barrier location in the gap space (a/d)%, the relative permittivity of the barrier materials (εr), the hole radius in the barrier (hr), the barrier thickness (th), and the barrier inclined angle (θ). Then, only 46 experiment runs are required to build the BBD model for the five barrier variables. The BBD prediction model was verified based on the statistical study and some other experiment runs. Results explained the influence of the inclined angle of the barrier and its thickness on the VBD. The obtained results indicated that the designed BBD model provides less than a 5% residual percentage between the measured and predicted VBD. The findings illustrated the high accuracy and robustness of the proposed insulating oil breakdown voltage predictive model linked with diverse barrier effects.

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“…Several investigations on nanocomposites incorporating TiO 2 for high voltage insulation applications, many focusing on the dielectric properties of these composites, have been reported . It was found that the associated Maxwell‐Wagner polarization due to the contrast of conductivity between the filler and the host matrix, can significantly increase dielectric losses at power frequency.…”

Section: Introductionmentioning

confidence: 99%

Effect of POSS‐grafted titanium dioxide on the electrical and thermal properties of LDPE/TiO₂ polymer nanocomposite

Anh

Fréchette

David

et al. 2017

J of Applied Polymer Sci

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Two types of nanocomposites have been fabricated by a ball-milling technique. The first type consists of untreated titanium dioxide (TiO 2 ) incorporated into low-density polyethylene (LDPE). For the second one, TiO 2 filler chemically treated with trisilanol phenyl-polyhedral oligomeric silsesquioxane (TP-POSS) as compatibilizing agent was ball-milled with LDPE. All specimens were tested by microstructure analysis and thermal, dielectric characterization techniques. Microstructure analysis by atomic force microscopy and scanning electron microscopy show clearly an increased dispersion in presence of POSS. Scanning electron microscopy even shows the formation of a particular structure due possibly to interactions between functionalization. It was observed that the modification of the surface of TiO 2 by the POSS decreased the dielectric loss. All nanocomposites containing treated TiO 2 revealed an improvement in thermal conductivity, with the most distinct value of 19% in case of LDPE containing 5 wt % treated TiO 2 . The incorporation of TiO 2 fillers seems to reduce the dielectric breakdown strength of the nanocomposites. However, nanocomposites containing 3 and 5 wt % treated TiO 2 have exhibited a slightly enhancement in dielectric breakdown strength up to 5%. The improvement in surface resistance to partial discharge was found in all nanocomposites specimens, especially for both types of composite containing 7 wt % untreated and treated TiO 2 .

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Dielectric Response of PVC and LDPE Nanocomposites Upon Functionalization of Their Containing Nanoparticles

Cited by 5 publications

References 19 publications

Solution mixing preparation of PVDF/ZnO polymeric composite films engineered for heterogeneous photocatalysis

Solution mixing preparation of PVDF/ZnO polymeric composite films engineered for heterogeneous photocatalysis

Accurate Insulating Oil Breakdown Voltage Model Associated with Different Barrier Effects

Effect of POSS‐grafted titanium dioxide on the electrical and thermal properties of LDPE/TiO₂ polymer nanocomposite

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Dielectric Response of PVC and LDPE Nanocomposites Upon Functionalization of Their Containing Nanoparticles

Cited by 5 publications

References 19 publications

Solution mixing preparation of PVDF/ZnO polymeric composite films engineered for heterogeneous photocatalysis

Solution mixing preparation of PVDF/ZnO polymeric composite films engineered for heterogeneous photocatalysis

Accurate Insulating Oil Breakdown Voltage Model Associated with Different Barrier Effects

Effect of POSS‐grafted titanium dioxide on the electrical and thermal properties of LDPE/TiO2 polymer nanocomposite

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Product

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Effect of POSS‐grafted titanium dioxide on the electrical and thermal properties of LDPE/TiO₂ polymer nanocomposite