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AuthorKamand, Fadi Z.
AuthorMehmood, Basharat
AuthorGhunem, Refat
AuthorHassan, Mohammad K.
AuthorEl-Hag, Ayman
AuthorAl-Sulaiti, Leena
AuthorAbdala, Ahmed
Available date2023-02-02T04:34:13Z
Publication Date2022
Publication NameEnergies
ResourceScopus
URIhttp://dx.doi.org/10.3390/en15051677
URIhttp://hdl.handle.net/10576/39402
AbstractThis paper discusses the state of the art in the application of self-healing silicone-based materials for outdoor high-voltage insulation. Both the dynamic behavior of the dimethyl side groups of silicone rubber and the diffusion of a bulk siloxane to maintain low surface energy are respectively reported as intrinsic mechanisms responsible for the self-healing of silicone rubber. Localization, temporality, mobility, and the type of synthesis are the aspects defining the efficiency of the self-healing ability of silicone rubber. In addition, the deterioration of the self-healing ability with filler loaded into silicone rubber insulation housing composites is discussed. Taking the self-healing property into consideration among the other properties of silicone rubber insulators, such as tracking and erosion resistance, can be a useful design practice at the material development stage. Hydrophobicity retention, recovery, and transfer measurements are discussed as useful indicators of the self-healing ability of silicone rubber. Nevertheless, there remains a need to standardize them as design tests at the material development stage. The paper is intended to shed the light on the hydrophobicity recovery, a key material design parameter in the development of silicone rubber outdoor insulating composites, similar to the tracking and erosion resistance.
SponsorAcknowledgments: F. Kamand, B. Mehmood, A. El-Hag, M. Hassan, L. Al-Sulaiti, and A. Abdala acknowledge that this work was made possible by NPRP grant 12S-0227-190168 from Qatar National Research Fund (a member of Qatar Foundation) and the Qatar University International collaboration grant #: IRCC-2020-010. The statements made herein are solely the responsibility of the authors: F. Kamand, B. Mehmood, A. El-Hag, M. Hassan, L. Al-Sulaiti, and A. Abdala.
Languageen
PublisherMDPI
SubjectFillers
Outdoor insulation
Self-healing
Silicone rubber
TitleSelf-Healing Silicones for Outdoor High Voltage Insulation: Mechanism, Applications and Measurements
TypeArticle Review
Issue Number5
Volume Number15
dc.accessType Open Access


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