Filler concentration effects on losses in silicone based polymeric composites

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319) Pub Date : 1999-10-17 DOI:10.1109/CEIDP.1999.807898

E. Tuncer, S. Gubanski

{"title":"Filler concentration effects on losses in silicone based polymeric composites","authors":"E. Tuncer, S. Gubanski","doi":"10.1109/CEIDP.1999.807898","DOIUrl":null,"url":null,"abstract":"Silicone polymer based rubber with different concentrations of powdered aluminum trihydrate (ATH) as filler were studied. Dielectric properties /spl chi/*(/spl omega/)=/spl chi/'-i/spl chi/'' were measured at different temperatures using low frequency dielectric spectroscopy technique. Without any ATH filler a classical interfacial relaxation was significant with dominating dc conduction in losses, /spl chi/''. By increasing the concentration of the filler a low frequency dispersion mechanism started to dominated in the relaxation behavior. With adding the filler, the dc conduction first decreased and then increased again after a certain concentration level was passed. This behavior showed that the filler particles acted like scattering centers or traps for conduction when the concentration was low. As the concentration increased the conductivity of the filler particles and of the interface (between filler particles and the polymer matrix) started to dominate the conduction. Master curve shifts of the data also showed Arrhenius type of behavior.","PeriodicalId":267509,"journal":{"name":"1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CEIDP.1999.807898","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 1

Abstract

Silicone polymer based rubber with different concentrations of powdered aluminum trihydrate (ATH) as filler were studied. Dielectric properties /spl chi/*(/spl omega/)=/spl chi/'-i/spl chi/'' were measured at different temperatures using low frequency dielectric spectroscopy technique. Without any ATH filler a classical interfacial relaxation was significant with dominating dc conduction in losses, /spl chi/''. By increasing the concentration of the filler a low frequency dispersion mechanism started to dominated in the relaxation behavior. With adding the filler, the dc conduction first decreased and then increased again after a certain concentration level was passed. This behavior showed that the filler particles acted like scattering centers or traps for conduction when the concentration was low. As the concentration increased the conductivity of the filler particles and of the interface (between filler particles and the polymer matrix) started to dominate the conduction. Master curve shifts of the data also showed Arrhenius type of behavior.

查看原文本刊更多论文

填料浓度对硅基聚合物复合材料损失的影响

研究了以不同浓度的粉末状三水合铝(ATH)为填料的有机硅聚合物基橡胶。采用低频介电光谱技术测量了不同温度下的介电特性/spl chi/*(/spl omega/)=/spl chi/'-i/spl chi/'”。在没有任何ATH填料的情况下，经典界面弛豫是显著的，直流传导在损耗中占主导地位，/spl chi/”。随着填料浓度的增加，低频色散机制开始主导弛豫行为。随着填料的加入，直流电导电率先降低后又升高。这种行为表明，当浓度较低时，填充颗粒具有散射中心或诱捕阱的导电作用。随着浓度的增加，填料颗粒和界面(填料颗粒与聚合物基体之间)的导电性开始主导导电性。数据的主曲线位移也表现出阿伦尼乌斯型的行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

1999 Annual Report Conference on Electrical Insulation and Dielectric Phenomena (Cat. No.99CH36319)

自引率

0.00%

发文量