Theoretical Aspects of XLPE-Based Blends and Nanocomposites

Thomas, Minu Elizabeth; Vidya, R.; Thomas, Jince; Ahmad, Zakiah

doi:10.1007/978-981-16-0486-7_11

Cited by 5 publications

(17 citation statements)

References 46 publications

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“…Note that the slight increase in Tc and Tm from unfilled XLPE to XLPE nanocomposite ensures that the crystalline region melts and enhances mechanical properties at relative temperatures [ 49 ]. This finding is in agreement with Thomas et al [ 50 ] stating that DSC results of XLPE nanocomposites had comparable results on Tc and Tm indicating a low effect of nanofillers on XLPE phase transformations. However, after analysing the value of the Xc, it can be seen that the incorporation of LDH-Al 2 O 3 to XLPE caused the Xc to increase.…”

Section: Resultssupporting

confidence: 93%

Dielectric, Mechanical, and Thermal Properties of Crosslinked Polyethylene Nanocomposite with Hybrid Nanofillers

et al. 2023

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Crosslinked polyethylene (XLPE) nanocomposite has superior insulation performance due to its excellent dielectric, mechanical, and thermal properties. The incorporation of nano-sized fillers drastically improved these properties in XLPE matrix due to the reinforcing effect of interfacial region between the XLPE–nanofillers. Good interfacial strength can be further improved by introducing a hybrid system nanofiller as a result of synergistic interaction between the nanofiller relative to a single filler system. Another factor affecting interfacial strength is the amount of hybrid nanofiller. Therefore, the incorporation amount of hybridising layered double hydroxide (LDH) with aluminium oxide (Al2O3) nanofiller into the XLPE matrix was investigated. Herein, the influence of hybrid nanofiller content and the 1:1 ratio of LDH to Al2O3 on the dielectric, mechanical, and thermal properties of the nanocomposite was studied. The structure and morphology of the XLPE/LDH-Al2O3 nanocomposites revealed that the hybridisation of nanofiller improved the dispersion state. The dielectric, mechanical, and thermal properties, including partial discharge resistance, AC breakdown strength, and tensile properties (tensile strength, Young’s modulus, and elongation at break) were enhanced since it was influenced by the synergetic effect of the LDH-Al2O3 nanofiller. These properties were increased at optimal value of 0.8 wt.% before decreasing with increasing hybrid nanofiller. It was found that the value of PD magnitude improvement went down to 47.8% and AC breakdown strength increased by 15.6% as compared to pure XLPE. The mechanical properties were enhanced by 14.4%, 31.7%, and 23% for tensile strength, Young’s modulus, and elongation at break, respectively. Of note, the hybridisation of nanofillers opens a new perspective in developing insulating material based on XLPE nanocomposite.

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Section: Resultssupporting

confidence: 93%

Dielectric, Mechanical, and Thermal Properties of Crosslinked Polyethylene Nanocomposite with Hybrid Nanofillers

et al. 2023

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“…Several micromechanical theoretical studies on the interfacial/interphase area have contributed an ample amount of data that favors the attainment of expected mechanical properties like yield strength, Young's modulus, tensile strength, and so on. Pukanszky 29 established an easy model connecting the yield strength of polymer composites to interfacial parameters, and it was successfully applied in various polymer nanocomposites 47,52–55 . Here, we successfully applied this model in SiO 2 –XLPE nanocomposites for predicting interfacial properties.…”

Section: Resultsmentioning

confidence: 99%

“…Pukanszky 29 established an easy model connecting the yield strength of polymer composites to interfacial parameters, and it was successfully applied in various polymer nanocomposites. 47,[52][53][54][55] Here, we successfully applied this model in SiO 2 -XLPE nanocomposites for predicting interfacial properties. In this Pukanszky's model, "B" is the interfacial parameter; it indicates the capability of stress transfer from the polymer matrix to the nanoparticle, as a function of the particle density and specific surface area, thickness, and strength of interphase.…”

Section: Reinforcement Mechanism and Theoretical Modelingmentioning

confidence: 99%

Exploring the reinforcing mechanism and micromechanical models for the interphase characteristics in melt mixed XLPE‐fumed SiO₂ nanocomposites

Thomas

Abraham³

et al. 2022

J of Applied Polymer Sci

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We present an experimental and theoretical exploration of well‐dispersed, distinctively stable, fumed SiO2 crosslinked polyethylene (XLPE) nanocomposites. The mechanical properties of fumed SiO2 /XLPE nanocomposites were assessed with different concentrations of fumed SiO2, which had noticed that network morphology was immensely influential for the performance of mechanical properties. A reasonable exploration of micromechanical models of composites indicated that the theories of Nicolais–Narkis, and Pukanszky provided an excellent fit to yield strength data of the composites considering the effect of the interphase between XLPE and SiO2. Furthermore, it highlights that the experimental data can be superimposed with the static micromechanical models of Nicolais–Narkis, and Pukanszky. Owing to the proper dispersion of the SiO2 nanospheres in the XLPE matrix, the filler‐polymer interactions are found to be enhanced. Moreover, it resulted in the excellent insulation properties of the nanocomposites, which makes it a better candidate for electrical cable insulating materials. The combined results of structural characterizations by Fourier Transform Infrared Spectroscopy (FTIR), X‐Ray Diffraction (XRD), Differential Scanning Calorimeter (DSC), Dynamic Mechanical Analysis (DMA), Atomic Force, and Transmission Electron Microscopy (AFM, TEM) confirmed the role of fumed SiO2 as a reinforcing mediator in the current system.

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“…The present review discusses a few effective XLPE recycling techniques. 14 3.a. Chemical Recycling or Feedstock Recycling of Polymer Wastes.…”

Section: Recycling Of Cross-linked Polyethylenementioning

confidence: 99%

“…The irreversible covalent linkages in the network, however, mean that these polymer's reprocessability and recyclability are compromised in contrast to those of thermoplastics. 13,14 Here is the main goal of chemical recycling, often referred to as tertiary recycling or feedstock recycling where waste polymers can be transformed into their original monomers or other valuable compounds. 14 3.b.…”

Section: Recycling Of Cross-linked Polyethylenementioning

confidence: 99%

Review on Recycling of Cross-Linked Polyethylene

Selvin,

Shah,

Maria

et al. 2024

Ind. Eng. Chem. Res.

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Cross-linked polyethylene is one of the most widely used thermosetting plastics. Due to its low cost, lightweight, and exceptional insulation properties against electricity and heat, it is frequently used as an insulation material for wires and cables. This polymer attracted interest in several different applications, including building services, piping systems, hydronic radiant heating, cooling systems, etc. However, because XLPE is a thermosetting plastic with limited fluidity and poor moldability, recycling this cross-linked form of polyethylene is extremely important. Due to irreversible covalent cross-linking, recycling XLPE is a very challenging task, and it can contribute to serious environmental issues, including soil and air pollution because most of this industrial waste is buried in landfills or removed by incineration. Therefore, recycling this kind of material with a crosslinked network structure is highly problematic. Therefore, we need an energyefficient, cost-effective, and eco-friendly recycling process to safeguard our ecosystem. In this article, we are systematically reviewing the recent advances in the recycling of XLPE. The major challenges are also discussed.

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Theoretical Aspects of XLPE-Based Blends and Nanocomposites

Cited by 5 publications

References 46 publications

Dielectric, Mechanical, and Thermal Properties of Crosslinked Polyethylene Nanocomposite with Hybrid Nanofillers

Dielectric, Mechanical, and Thermal Properties of Crosslinked Polyethylene Nanocomposite with Hybrid Nanofillers

Exploring the reinforcing mechanism and micromechanical models for the interphase characteristics in melt mixed XLPE‐fumed SiO₂ nanocomposites

Review on Recycling of Cross-Linked Polyethylene

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Theoretical Aspects of XLPE-Based Blends and Nanocomposites

Cited by 5 publications

References 46 publications

Dielectric, Mechanical, and Thermal Properties of Crosslinked Polyethylene Nanocomposite with Hybrid Nanofillers

Dielectric, Mechanical, and Thermal Properties of Crosslinked Polyethylene Nanocomposite with Hybrid Nanofillers

Exploring the reinforcing mechanism and micromechanical models for the interphase characteristics in melt mixed XLPE‐fumed SiO2 nanocomposites

Review on Recycling of Cross-Linked Polyethylene

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Exploring the reinforcing mechanism and micromechanical models for the interphase characteristics in melt mixed XLPE‐fumed SiO₂ nanocomposites