Impact of Thermal Constraint on the Low Density Polyethylene (LDPE) Properties

Hedir, Abdallah; Slimani, Ferhat; Moudoud, Mustapha; Bellabas, Ferhat; Loucif, Amina

doi:10.1007/978-3-030-31680-8_92

Lecture Notes in Electrical Engineering

2019

DOI: 10.1007/978-3-030-31680-8_92

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Impact of Thermal Constraint on the Low Density Polyethylene (LDPE) Properties

Abdallah Hedir

Ferhat Slimani

Mustapha Moudoud

et al.

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Cited by 2 publications

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“…Changes in the imaginary component of the dielectric constant have been connected to contributions from oxidation and morphological changes inside polymers. This comparison may serve as the starting point for the creation of nondestructive methods for electrical measurements-based polymer diagnostics [16,17].…”

mentioning

confidence: 99%

The effect of thermal ageing on electrical and mechanical properties of thermoplastic nanocomposite insulation of power high-voltage cables

El Sherkawy,

Nasrat,

Rihan

2024

Electrical Engineering & Electromechanics

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This research explores the thermal ageing influence on the Low Density Polyethylene (LDPE) dielectric properties, which is utilised as electrical insulation in high-voltage cables. An accelerated thermal ageing test was done at four temperature ranges ranging from 25 °C to 120 °C to define the degree of material deterioration under thermal ageing and to prevent its failure. LDPE composite samples were made by adding aluminium oxide (Al2O3) inorganic filler in two different grain sizes (nano and micro) with various concentrations. The effect of adding inorganic filler on the acceleration of the thermal ageing of the polymer was studied by heating the samples for different periods of time and measuring the dielectric strength of the samples. The obtained results show that thermal ageing considerably affects the electrical properties of the material. The LDPE/Al2O3 nanofiller sample has the highest dielectric strength value at different temperatures. Thermogravimetric analysis was used to investigate the thermal characteristics of materials. The mechanical characteristics of LDPE polymer are studied using tensile strength and elongation at break tests. References 27, table 4, figures 6.

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mentioning

confidence: 99%

The effect of thermal ageing on electrical and mechanical properties of thermoplastic nanocomposite insulation of power high-voltage cables

El Sherkawy,

Nasrat,

Rihan

2024

Electrical Engineering & Electromechanics

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Effect of phenol-formaldehyde resin on mechanical durability and structure of low-density polyethylene

Zeynalov,

Kerimov,

Safarova

et al. 2023

Scientific Herald of Uzhhorod University Series Physics

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Relevance. The development of technology for producing new polymer modifications with specific properties, which remain stable even when exposed to external factors, is a key area of focus for researchers in the field of high-molecular compounds. Purpose. The purpose of this study was to create new composite materials based on low-density polyethylene. Methodology. The extrusion blowing method on an industrial URP 1500 unit was used for processing low-density polyethylene (LDPE) and its modified films. Electron microscopic images of the surface were captured using a S-570 scanning microscope (Japan) at X1000 magnifications. Results. The composition and quantity of a low-molecular organic additive that alters the electrical characteristics of low-density polyethylene grade 10803-020 was ascertained. The modified low-density polyethylene is noteworthy for its minimal usage of additives and their compatibility with technology. Based on experimental data, it was found that the inclusion of 0.05 wt% phenol-formaldehyde resin in low-density polyethylene increases its mechanical strength to the highest level when compared to both the unaltered low-density polyethylene and low-density polyethylene with other additives. Furthermore, the study found that the addition of phenol-formaldehyde resin in small proportions (0.05 wt%) substantially enhances mechanical strength at varying temperatures. Conclusions. The electrophysical characteristics of low-density polyethylene and its modified versions were comprehensively investigated. The adequately altered low-density polyethylene exhibits considerably improved mechanical durability. It was indicated that the additives used, at optimal levels, influence the physical framework of low-density polyethylene, highlighting their technological compatibility differences

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Impact of Thermal Constraint on the Low Density Polyethylene (LDPE) Properties

Cited by 2 publications

References 7 publications

The effect of thermal ageing on electrical and mechanical properties of thermoplastic nanocomposite insulation of power high-voltage cables

The effect of thermal ageing on electrical and mechanical properties of thermoplastic nanocomposite insulation of power high-voltage cables

Effect of phenol-formaldehyde resin on mechanical durability and structure of low-density polyethylene

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