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Effects of nanotitania on structure-dielectric properties of polypropylene blends.

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Title: Effects of nanotitania on structure-dielectric properties of polypropylene blends.
Authors: Azrin, Nur Azalia1 (AUTHOR) nazalia3@live.utm.my, Ahmad, Noor Azlinda1 (AUTHOR), Lau, Kwan Yiew1 (AUTHOR) kwanyiew@utm.my, Mohd Esa, Mona Riza1 (AUTHOR), Kamarudin, Siti Noorhazirah1 (AUTHOR), Rahim, Nor Hidayah2 (AUTHOR), Talib, Mohd Aizam3 (AUTHOR)
Source: Journal of Thermoplastic Composite Materials. Mar2026, Vol. 39 Issue 3, p1291-1312. 22p.
Subjects: Dielectric properties, Titanium dioxide nanoparticles, Polypropylene, Dielectric materials, Insulating materials, Dielectric strength, Electric insulators & insulation
Abstract: Polypropylene (PP) satisfies many of the requirements as power cable insulation thanks to its high thermal stability, ability to withstand high voltages, and eco-friendly properties. Due to the high stiffness and brittleness of PP, the extrusion of PP as power cable insulation becomes difficult. Therefore, elastomers have been blended with PP to enhance PP's flexibility. Nevertheless, one common issue arises when blending elastomer with PP is the degradation of PP/elastomer blends' dielectric properties. Recently, nanodielectrics have drawn utmost attention as a promising material system for improving the overall performance of polymer-based insulating materials, but such a material system has yet to be pursued for PP blend materials. The current work therefore investigates the effects of titania (TiO2) on the structure and dielectric properties of PP/ethylene-based elastomer (EBE) and PP/propylene-based elastomer (PBE). While adding high amounts of TiO2 degrades the blend materials' breakdown strength, the inclusion of small amounts (0.5 wt% and 1 wt%) of TiO2 improves the breakdown strength of the blend materials by as much as 10%. Notably, the effect of TiO2 is more apparent on PP/EBE system over PP/PBE system. Mechanisms underlying changes in the breakdown strength of the materials, under both alternating current (AC) and direct current (DC) fields, are analyzed. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Thermoplastic Composite Materials is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 191572870
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Effects of nanotitania on structure-dielectric properties of polypropylene blends.
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  Data: <searchLink fieldCode="AR" term="%22Azrin%2C+Nur+Azalia%22">Azrin, Nur Azalia</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> nazalia3@live.utm.my</i><br /><searchLink fieldCode="AR" term="%22Ahmad%2C+Noor+Azlinda%22">Ahmad, Noor Azlinda</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lau%2C+Kwan+Yiew%22">Lau, Kwan Yiew</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> kwanyiew@utm.my</i><br /><searchLink fieldCode="AR" term="%22Mohd+Esa%2C+Mona+Riza%22">Mohd Esa, Mona Riza</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kamarudin%2C+Siti+Noorhazirah%22">Kamarudin, Siti Noorhazirah</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rahim%2C+Nor+Hidayah%22">Rahim, Nor Hidayah</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Talib%2C+Mohd+Aizam%22">Talib, Mohd Aizam</searchLink><relatesTo>3</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Thermoplastic+Composite+Materials%22">Journal of Thermoplastic Composite Materials</searchLink>. Mar2026, Vol. 39 Issue 3, p1291-1312. 22p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Dielectric+properties%22">Dielectric properties</searchLink><br /><searchLink fieldCode="DE" term="%22Titanium+dioxide+nanoparticles%22">Titanium dioxide nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Polypropylene%22">Polypropylene</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+materials%22">Dielectric materials</searchLink><br /><searchLink fieldCode="DE" term="%22Insulating+materials%22">Insulating materials</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+strength%22">Dielectric strength</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+insulators+%26+insulation%22">Electric insulators & insulation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Polypropylene (PP) satisfies many of the requirements as power cable insulation thanks to its high thermal stability, ability to withstand high voltages, and eco-friendly properties. Due to the high stiffness and brittleness of PP, the extrusion of PP as power cable insulation becomes difficult. Therefore, elastomers have been blended with PP to enhance PP's flexibility. Nevertheless, one common issue arises when blending elastomer with PP is the degradation of PP/elastomer blends' dielectric properties. Recently, nanodielectrics have drawn utmost attention as a promising material system for improving the overall performance of polymer-based insulating materials, but such a material system has yet to be pursued for PP blend materials. The current work therefore investigates the effects of titania (TiO2) on the structure and dielectric properties of PP/ethylene-based elastomer (EBE) and PP/propylene-based elastomer (PBE). While adding high amounts of TiO2 degrades the blend materials' breakdown strength, the inclusion of small amounts (0.5 wt% and 1 wt%) of TiO2 improves the breakdown strength of the blend materials by as much as 10%. Notably, the effect of TiO2 is more apparent on PP/EBE system over PP/PBE system. Mechanisms underlying changes in the breakdown strength of the materials, under both alternating current (AC) and direct current (DC) fields, are analyzed. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Thermoplastic Composite Materials is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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        Value: 10.1177/08927057251368874
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        Text: English
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        PageCount: 22
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      – SubjectFull: Dielectric properties
        Type: general
      – SubjectFull: Titanium dioxide nanoparticles
        Type: general
      – SubjectFull: Polypropylene
        Type: general
      – SubjectFull: Dielectric materials
        Type: general
      – SubjectFull: Insulating materials
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      – SubjectFull: Dielectric strength
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      – SubjectFull: Electric insulators & insulation
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      – TitleFull: Effects of nanotitania on structure-dielectric properties of polypropylene blends.
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            NameFull: Azrin, Nur Azalia
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            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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