Dielectric properties of silicone rubber nanocomposites filled graphene oxide as high voltage insulating material
Also available in printed version
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| Format: | Master's thesis |
| Language: | English |
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Universiti Teknologi Malaysia
2025
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| Online Access: | https://utmik.utm.my/handle/123456789/45530 |
| Abstract | Abstract here |
| _version_ | 1854975073176256512 |
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| author | Maryam Syuhaidah Mohd. Fua'ad |
| author2 | Zolkafle Buntat, supervisor |
| author_facet | Zolkafle Buntat, supervisor Maryam Syuhaidah Mohd. Fua'ad |
| author_sort | Maryam Syuhaidah Mohd. Fua'ad |
| description | Also available in printed version |
| format | Master's thesis |
| id | utm-123456789-45530 |
| institution | Universiti Teknologi Malaysia |
| language | English |
| publishDate | 2025 |
| publisher | Universiti Teknologi Malaysia |
| record_format | dspace |
| record_pdf | Abstract |
| spelling | utm-123456789-455302025-08-21T01:30:16Z Dielectric properties of silicone rubber nanocomposites filled graphene oxide as high voltage insulating material Maryam Syuhaidah Mohd. Fua'ad Zolkafle Buntat, supervisor Electrical engineering Also available in printed version Silicone rubber (SiR) has been broadly used as polymer for high voltage (HV) insulators and cable accessories in power transmission and distribution systems due to its superior properties. The degradation generated under extreme electric field stress in SiR would distort the electrical field distribution, further influencing the dielectric properties of SiR insulation and can finally result in electrical breakdown. Most of the polymeric insulations utilize nano-sized fillers as reinforcement in HV insulation. Nevertheless, only a few previous works addressed the application of SiR filled graphene oxide (GO) nanocomposites in HV insulating materials. The purpose of this thesis is to investigate the enhancement of dielectric properties in SiR nanocomposites by incorporating GO nanofillers. Samples with different GO weight percentage (wt%: 0, 0.1, 0.5, 1.0) were prepared using manual mixing method. The effect of GO contents on dielectric properties in polarization and depolarization current (PDC), DC conductivity, AC breakdown strength and for broadband dielectric spectroscopy measurement over the frequency range from 10-2 Hz to 106 Hz were evaluated. PDC patterns and DC conductivities were measured via PDC analyser, AC breakdown strength was performed as per ASTM D149 Standard and dielectric spectroscopy response behaviours were observed using Gamry Instruments Interface 1000. Scanning electron microscope examination was conducted to study the morphology of nanocomposites. Results demonstrated that polarized current, depolarized current and DC conductivity of SiR/GO nanocomposites was reduced at 0.5 wt% loading than neat SiR. In the case of AC breakdown strength, it was observed to have slightly increased at 0.5 wt% GO as compared to neat SiR. Meanwhile, nanocomposites at 0.5 wt% GO were found to have reduced dielectric permittivity, tan ?? and AC conductivity values than that of neat SiR�s. The measurement of dielectric properties revealed that nanocomposites with 0.5 wt% GO were homogeneously dispersed than others. Hence, the presence of GO nanofillers with weight percentage of 0.5 wt% loading is beneficial in producing nanocomposites with both a homogeneous dispersion and strong interface feature between GO and SiR polymer matrix. Overall, SiR/GO nanocomposites with 0.5 wt% GO loading improved the dielectric properties zulaihi UTM 141 p. Thesis (Sarjana Falsafah) - Universiti Teknologi Malaysia, 2018 2025-03-12T04:34:50Z 2025-03-12T04:34:50Z 2018 Master's thesis https://utmik.utm.my/handle/123456789/45530 vital:119506 valet-20190115-084158 ENG Closed Access UTM Complete Unpublished Completion application/pdf Universiti Teknologi Malaysia |
| spellingShingle | Electrical engineering Maryam Syuhaidah Mohd. Fua'ad Dielectric properties of silicone rubber nanocomposites filled graphene oxide as high voltage insulating material |
| thesis_level | Master |
| title | Dielectric properties of silicone rubber nanocomposites filled graphene oxide as high voltage insulating material |
| title_full | Dielectric properties of silicone rubber nanocomposites filled graphene oxide as high voltage insulating material |
| title_fullStr | Dielectric properties of silicone rubber nanocomposites filled graphene oxide as high voltage insulating material |
| title_full_unstemmed | Dielectric properties of silicone rubber nanocomposites filled graphene oxide as high voltage insulating material |
| title_short | Dielectric properties of silicone rubber nanocomposites filled graphene oxide as high voltage insulating material |
| title_sort | dielectric properties of silicone rubber nanocomposites filled graphene oxide as high voltage insulating material |
| topic | Electrical engineering |
| url | https://utmik.utm.my/handle/123456789/45530 |
| work_keys_str_mv | AT maryamsyuhaidahmohdfuaad dielectricpropertiesofsiliconerubbernanocompositesfilledgrapheneoxideashighvoltageinsulatingmaterial |