{"title":"Effects of particles size of ATH fillers on the performance of RTV rubber coatings","authors":"H. Deng, E. Cherney, R. Hackam","doi":"10.1109/CEIDP.1993.378907","DOIUrl":null,"url":null,"abstract":"The authors present a study of the effects of the particle size of ATH (alumina trihydrate) on the performance of RTV (room-temperature vulcanizing) coatings on fiber glass rod insulators under contamination and wet conditions in a salt-fog chamber. Examination of the surface using attenuated total reflection Fourier transform infrared (FTIR) spectroscopy coupled with determination of the current pulse counts indicates a significant effect of the particle size on the performance of ATH-filled RTV coatings. The best performance leading to the lowest leakage current pulse counts and the longest time to failure was obtained with coatings having 4.5 and 13 /spl mu/m sizes of ATH particles. Measurement of the IR spectra of silicone fluid diffused to the surface shows that the silicone fluid was more pronounced with these two particle sizes.<<ETX>>","PeriodicalId":149803,"journal":{"name":"Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1993-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"21","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP '93)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CEIDP.1993.378907","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 21
Abstract
The authors present a study of the effects of the particle size of ATH (alumina trihydrate) on the performance of RTV (room-temperature vulcanizing) coatings on fiber glass rod insulators under contamination and wet conditions in a salt-fog chamber. Examination of the surface using attenuated total reflection Fourier transform infrared (FTIR) spectroscopy coupled with determination of the current pulse counts indicates a significant effect of the particle size on the performance of ATH-filled RTV coatings. The best performance leading to the lowest leakage current pulse counts and the longest time to failure was obtained with coatings having 4.5 and 13 /spl mu/m sizes of ATH particles. Measurement of the IR spectra of silicone fluid diffused to the surface shows that the silicone fluid was more pronounced with these two particle sizes.<>
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