{"title":"液晶共聚酯Vectra A极化结构中产生电流的研究","authors":"S. Kalia, R. Kalia","doi":"10.21013/JAS.V6.N2.P4","DOIUrl":null,"url":null,"abstract":"The Thermally Stimulated Polarization Current (TSPC) is used to study the dielectric behavior of Vectra A, liquid crystal copolyester. The TSPC spectra of samples of Vectra A for various polarizing fields (3.8 kV/cm- 19.2 kV/cm) have been investigated. A dipolar relaxation is observed in the low temperature region ~ 30 o C due to orientation of naphthalene groups present in Vectra A which is termed as peak-P 1 . In the higher temperature region above 110 o C, the dipolar and space charge peaks are in composite form. TSPC cycle is performed to distinguish the dipolar and space charge peaks. Also, the TSPC spectra of annealed and doped samples of Vectra A are studied. The results obtained from TSPC spectra are compared with TSDC spectra of samples of Vectra A.","PeriodicalId":14487,"journal":{"name":"IRA-International Journal of Applied Sciences","volume":"6 1","pages":"55-61"},"PeriodicalIF":0.0000,"publicationDate":"2017-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Investigations of Current Generated in Construction of Polarization in Vectra A, Liquid Crystal Copolyester\",\"authors\":\"S. Kalia, R. Kalia\",\"doi\":\"10.21013/JAS.V6.N2.P4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The Thermally Stimulated Polarization Current (TSPC) is used to study the dielectric behavior of Vectra A, liquid crystal copolyester. The TSPC spectra of samples of Vectra A for various polarizing fields (3.8 kV/cm- 19.2 kV/cm) have been investigated. A dipolar relaxation is observed in the low temperature region ~ 30 o C due to orientation of naphthalene groups present in Vectra A which is termed as peak-P 1 . In the higher temperature region above 110 o C, the dipolar and space charge peaks are in composite form. TSPC cycle is performed to distinguish the dipolar and space charge peaks. Also, the TSPC spectra of annealed and doped samples of Vectra A are studied. The results obtained from TSPC spectra are compared with TSDC spectra of samples of Vectra A.\",\"PeriodicalId\":14487,\"journal\":{\"name\":\"IRA-International Journal of Applied Sciences\",\"volume\":\"6 1\",\"pages\":\"55-61\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-03-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IRA-International Journal of Applied Sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.21013/JAS.V6.N2.P4\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IRA-International Journal of Applied Sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21013/JAS.V6.N2.P4","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Investigations of Current Generated in Construction of Polarization in Vectra A, Liquid Crystal Copolyester
The Thermally Stimulated Polarization Current (TSPC) is used to study the dielectric behavior of Vectra A, liquid crystal copolyester. The TSPC spectra of samples of Vectra A for various polarizing fields (3.8 kV/cm- 19.2 kV/cm) have been investigated. A dipolar relaxation is observed in the low temperature region ~ 30 o C due to orientation of naphthalene groups present in Vectra A which is termed as peak-P 1 . In the higher temperature region above 110 o C, the dipolar and space charge peaks are in composite form. TSPC cycle is performed to distinguish the dipolar and space charge peaks. Also, the TSPC spectra of annealed and doped samples of Vectra A are studied. The results obtained from TSPC spectra are compared with TSDC spectra of samples of Vectra A.
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