Enhancing Electrical, Thermal, and Mechanical Properties of HV Cross-Linked Polyethylene Insulation Using Silica Nanofillers

Said, Abdel Rahman; Nawar, Amira G.; Elsayed, Alaa E.; Abdallah, Marwa H.; Kamel, Samir

doi:10.1007/s11665-021-05488-8

Cited by 17 publications

(10 citation statements)

References 32 publications

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“…By adding the nano-filler to the matrix of the XLPE, the surface area of the particles and the interfacial area are increased. Therefore, a high volume of interaction zones is formed [23], [24], which in turn escalates the trapping of charges such as electrons inside interaction zones.…”

Section: Dielectric Strength Resultsmentioning

confidence: 99%

Improvement of dielectric strength and properties of cross-linked polyethylene using nano filler

Essawi

Nasrat

Ismail

et al. 2022

IJECE

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Power cables insulated with cross-linked polyethylene (XLPE) have been utilized worldwide for distribution and transmission networks. There are several advantages for this type of insulation; it has better electrical, thermal, and mechanical properties compared to other types of insulation in medium and high voltage networks. Many studies aimed to improve the XLPE characteristics through introducing nano fillers to the XLPE matrix. Therefore, this paper investigates the AC (HV) breakdown voltage (dielectric strength) of XLPE after adding nano-sized zeolite (Z) fillers with various concentrations of 1 wt%, 3 wt%, 5 wt% and 7 wt%. The dielectric strength is tested in different temperatures of 30 ⁰C and 250 ⁰C. Additionally, it was tested in low and high salty wet conditions. The dielectric strength of the XLPE has been enhanced by inducing the Z nano filler. The results of the tests were used to train the artificial neural network (ANN) to calculate the dielectric strength of XLPE composites with different concentrations of nano Z filler under different weathering conditions. Thermogravimetric analysis, tensile strength, and elongation at break tests were applied to check the thermal and mechanical characteristics of the samples. Experimental findings show that the optimum concentration of nano Z is 3.64 wt% to enhance the electrical, thermal, and mechanical properties.

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Section: Dielectric Strength Resultsmentioning

confidence: 99%

Improvement of dielectric strength and properties of cross-linked polyethylene using nano filler

Essawi

Nasrat

Ismail

et al. 2022

IJECE

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“…Practically, to produce ZnO NPs, 1314 mg of zinc acetate and 480 mg of NaOH were dissolved in 330 ml ethanol and refluxed at 60 °C for about 60 min. After the reaction was completed, adding deionized water, the white solid products were centrifuged at 7000 rpm for 5 min to separate them from the dispersion supernatant, followed by drying in a laboratory electrical oven at 60 °C [17]. For surface activation, LOBA Chemie's 98% pure methane-sulfonic acid used.…”

Section: Methodsmentioning

confidence: 99%

“…To obtain chemical compatibility and thermodynamical between the polymer and incorporated filler and keep the particles separated from each other; and III. To improve the adherence at the interfaces between matrix and particles [17].…”

Section: Nanoparticle Functionalizationmentioning

confidence: 99%

“…Then, at 70 °C, the mixture is agitated for about 2 h at 500 rpm. Dropwise, a 10% (wt/wt) amino silane solution in toluene was added, and the stirring procedure lasted for 8 h. Finally, the produced functionalized NPs were collected and washed with isopropanol and then dried for 24 h in a vacuum oven at 120 °C [17][18][19].…”

Section: Nanoparticle Functionalizationmentioning

confidence: 99%

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Enhancing the electrical and physical nature of high-voltage XLPE cable dielectric using different nanoparticles

Said

Abdallah

Nawar³

et al. 2022

J Mater Sci: Mater Electron

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The goal of this study is to see how different chemically modified nanoparticles affect the performance and characteristics of commercial cross-linked polyethylene (XLPE) as a polymeric insulator used in insulating power cables and to compare their properties in order to figure out what factors are most important in improving the XLPE properties. Silicon dioxide or silica, titanium dioxide, and zinc oxide nanoparticle are used in this study. Nanoparticles (NPs) amino silane surface modification was carried out to decrease nanoparticle aggregation and improve compatibility with the polymer matrix. The melt blending process was used to synthesize and develop XLPE nano-composites on an industrial scale with varying nanoparticle loading ratios (0.5, 2.0, 3.5, and 5.0 wt%). The morphology and size of all functionalized nanoparticles were explained. The morphology of the produced nano-composites and particle dispersion in the XLPE polymer matrix were studied using X-ray diffraction and field emission scanning electron microscopy. All samples' thermal, electrical, and mechanical properties are evaluated. The result shows the optimum values of melting temperature for functionalized XLPE nano-composites and it is seen that the functionalized XLPE/TiO2 samples have the highest value that increased by 6.85 °C over XLPE, but the smallest tensile strength and elongation values were observed. Also, the use of silica NPs gives maximum enhancement dielectric properties.

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“…Silica (SiO 2 ) particles have been widely used as carriers for adsorption systems or in drug delivery as well as in electronic components [8][9][10][11]. Various types of SiO 2 particles, such as porous, non-porous, and hollow, are now commercially available, and porous SiO 2 particles are well suited as adsorption-based carriers due to their high surface areas.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Aromatic Polyamide-Silica Composite Particles and the Effect of Incorporating Silane Coupling Agent

Yoshioka

Ehiro

2022

e-J. Surf. Sci. Nanotechnol.

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Aromatic polyamide (PA)-silica (SiO 2 ) composite particles were synthesized incorporating a silane coupling agent (SCA) at two different concentrations or without the SCA, using a mixture of acetone and N,N-dimethylacetamide. The three types of composite particles were macroscopically similar to the original silica particles in terms of size and morphology. The extent to which the SiO 2 particles were coated with the SCA was found to be dependent on the concentration of the SCA used in the synthesis. However, all particles had almost the same level of PA coating regardless of the amount of SCA added. These coatings decreased the total pore volume and the surface area of the porous SiO 2 particles while maintaining the original porous structure. Adsorption capacity tests using rhodamine B in water showed that all PA-coated particles removed 73 to 84% of the dye while untreated particles or those coated with only the SCA adsorbed from 14 to 21%. This significant difference demonstrated the beneficial effect of the PA. Thus, composite particles with significant dye adsorption efficiencies could be obtained without the SCA treatment.

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Enhancing Electrical, Thermal, and Mechanical Properties of HV Cross-Linked Polyethylene Insulation Using Silica Nanofillers

Cited by 17 publications

References 32 publications

Improvement of dielectric strength and properties of cross-linked polyethylene using nano filler

Improvement of dielectric strength and properties of cross-linked polyethylene using nano filler

Enhancing the electrical and physical nature of high-voltage XLPE cable dielectric using different nanoparticles

Synthesis of Aromatic Polyamide-Silica Composite Particles and the Effect of Incorporating Silane Coupling Agent

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