Breakdown characteristics of grafted polypropylene in PP/EPDM hybrid nanocomposite for electrical insulator applications

Hamzah, Muhammad Safwan; Mariatti, M.; Jamil, Mohamad Kamarol Mohd

doi:10.1007/s00289-017-2167-z

Cited by 8 publications

(7 citation statements)

References 23 publications

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“…In addition, high filler loading ability and excellent resistance to degradation of EPDM increased the investigation on PP/EPDM blends for electrical insulation applications . Hamzah et al published a series of investigation on the effect of flame retardant fillers and inorganic nanoparticles on electrical insulation properties and flammability of PP/EPDM composites. Farzad et al reported on the electrical, flammability and mechanical properties of PP/PEDM filled with alumina trihydrate (ATH) for HV insulators.…”

Section: The Emergence Of Thermoplastic Elastomer In Electrical Insulmentioning

confidence: 99%

“…Such combination reduced the portion of conventional fire retardant needed which is a way to improve mechanical properties as well . Hamzah et al reported that PP/EPDM nanocomposite filled with hybrid fillers (1.5 vol% ammonium polyphosphate (APP) and 2 vol% organoclay) exhibited improved dielectric breakdown strength, low dielectric constant, low dielectric loss, acceptable contact angle and burning rate which is suitable to be used as polymeric outdoor insulators. Partial discharge resistance of nanocomposite resin with clays has also been reported to be better than just with neat resin .…”

Section: Application Of Micro and Nano‐size Filler In High Voltage Inmentioning

confidence: 99%

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A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Ismail

Mariatti

2018

Polymer Engineering & Sci

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Thermoplastic elastomer (TPE) has gained acceptance as third generation of polymeric materials for high voltage (HV) insulators. The interesting features showed by TPEs were found to fulfill some particular requirements for HV insulations, at least for the distribution class applications, especially at light contamination environments. Introduction of nanomaterials which widely reported to give significant improvements in the electrical, mechanical, thermal and other properties of polymer has attracted attention to the synergistic properties of combining the two complementary technologies of thermoplastic elastomers and nanocomposites. In this paper, research works on various types of TPEs having promising performance as HV insulators are thoroughly reviewed. The emergence of nanocomposites in the electrical insulation field and the important properties consideration for HV insulators as well as the processing techniques of TPE nanocomposites are also discussed. Finally, some of the past and recent developments of TPE nanocomposites focusing on the electrical insulation properties are highlighted in this article. POLYM. ENG. SCI., 58:E36–E63, 2018. © 2018 Society of Plastics Engineers

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Section: The Emergence Of Thermoplastic Elastomer In Electrical Insulmentioning

confidence: 99%

Section: Application Of Micro and Nano‐size Filler In High Voltage Inmentioning

confidence: 99%

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Ismail

Mariatti

2018

Polymer Engineering & Sci

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“…Specifically, the organoclay used is the Cloisite 15A type which is a layered structure form of natural montmorillonite. The filler is modified with a dimethyl dehydrogenated tallow quaternary ammonium with a cation exchange capacity of 125 mequiv./100 g. [3] Nanoparticles of alumina obtained as a white powder was supplied by US Nano Inc. and Ultra Chemical Inc. The mean particle sizes (d 50 ) of the used nanofillers are 40 and 60 nm for organoclay and alumina, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Over the past few years, polymer nanocomposite insulators have received attention because of their improvement potential of the electrical, mechanical and thermal properties as compared to the neat polymers. [3] Therefore, higher demand for polymer nanocomposite-based insulators is envisaged in the near future because they will invariably promote cost reductions, while offering other salient advantages. Specifically, they could facilitate improved insulation properties, desirable mechanicalstrength-to-weight ratio, offer sufficient resistance to vandalism, and present better performance in moist environments, or in the presence of heavy pollution.…”

Section: Introductionmentioning

confidence: 99%

Electrical treeing characteristics of alumina‐, zinc oxide‐, and organoclay‐nanoparticle‐filledXLPEnanocomposites

Hamzah

Jaafar

Ismail

et al. 2022

Polymer Engineering & Sci

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Polymer nanocomposites have been widely exploited in different engineering applications like high-voltage engineering application. This is mainly associated with the ease at which they can be tailored toward specific applications. In the present work, alumina-and organoclay-based nanofillers were separately incorporated in cross-linked polyethylene (XLPE). Different formulations of the XLPE nanocomposites were fabricated with the help of an internal mixer after which they were molded to produce test specimens. The effect of nanofiller variation (0.25 and 0.5 wt% loading) on the electrical treeing phenomenon is reported herein. It was observed that the incorporation of 0.5 wt% alumina significantly enhances the tree inception voltage. In addition, compared to 0.25 wt% alumina-, 0.25 and 0.5 wt% organoclay-filled XLPE nanocomposites, 0.5 wt% alumina was found to lower the length and growth of the electrical tree, as well as the expansion coefficient of the XLPE nanocomposite.

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“…These improved dielectric behaviors of nanocomposites have often been attributed to the appropriate use and good dispersion of nanoparticles, in addition to favorable nanoparticle/polymer interactions. 7,8 These are much related to the presence of the interface within nanocomposites. 9 In any dielectric, breakdown strength is an important dielectric parameter that determines the maximum electric field magnitude that the dielectric can withstand without failure.…”

Section: Introductionmentioning

confidence: 99%

The Role of Silicon-Based Nanofillers and Polymer Crystallization on the Breakdown Behaviors of Polyethylene Blend Nanocomposites

Kamarudin

Lau

Tan

et al. 2020

NANO

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Good breakdown strength is an important feature for the selection of dielectric materials, especially in high-voltage engineering. Although nanocomposites have been shown to possess many promising dielectric properties, the breakdown strength of nanocomposites is often found to be negatively affected. Recently, imposing nonisothermal crystallization processes on polyethylene blends has been demonstrated to be favorable for breakdown strength improvements of dielectric materials. In an attempt to increase nanocomposites’ voltage rating, this work reports on the effects of nonisothermal crystallization (fast, moderate and slow crystallizations) on the structure and dielectric properties of a polyethylene blend (PE) composed of 80% low density polyethylene and 20% high density polyethylene, added with silicon dioxide (SiO2) and silicon nitride (Si3N4) nanofillers. Through breakdown testing, the breakdown performance of Si3N4-based nanocomposites was better than SiO2-based nanocomposites. Since nanofiller dispersion within both nanocomposite systems was comparable, the enhanced breakdown performance of Si3N4-based nanocomposites is attributed to the surface chemistry of Si3N4 containing less hydroxyl groups than SiO2. Furthermore, the breakdown strength of SiO2-based nanocomposites and Si3N4-based nanocomposites improved, with the DC breakdown strength increasing by at least 12% when both the nanocomposites were subjected to moderate crystallization rather than fast and slow crystallizations. This is attributed to changes in the underlying molecular conformation of PE in addition to water-related effects. These results suggest that apart from changes in the nanofiller surface chemistry, changes in the underlying molecular conformation of polymers are also important to improve the breakdown performance of nanocomposites.

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Breakdown characteristics of grafted polypropylene in PP/EPDM hybrid nanocomposite for electrical insulator applications

Cited by 8 publications

References 23 publications

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications

Electrical treeing characteristics of alumina‐, zinc oxide‐, and organoclay‐nanoparticle‐filledXLPEnanocomposites

The Role of Silicon-Based Nanofillers and Polymer Crystallization on the Breakdown Behaviors of Polyethylene Blend Nanocomposites

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