{"title":"Electrical and Structural Properties of Polystyrene/Graphite Composite by Direct Mixing Method","authors":"S. Ezeonu, E. Ogonnaya, C. Nweze","doi":"10.7176/apta/81-03","DOIUrl":null,"url":null,"abstract":"Melt mixing method was used in the preparation of Polystyrene (PS)/graphite composite with different graphite weight %.The electrical and structural properties of the composite were studied using Keithley two-point probe and GBC EMMA X-ray diffractometer (XRD) respectively. The result showed that the electrical conductivity of the composites was improved as the weight percentage of graphite content increases but the percolation threshold was observed at 0.10wt%. The conductivity of the composites was also observed to increase at higher temperatures. The structural result showed that the amorphous structure of polystyrene was converted to crystalline as the weight% of the graphite increases which influences the degree of crystallinity. Keywords: polymer, graphite, composite, percolation threshold, electrical conductivity DOI : 10.7176/APTA/81-03 Publication date: December 31 st 2019","PeriodicalId":7386,"journal":{"name":"Advances in Physics Theories and Applications","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in Physics Theories and Applications","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.7176/apta/81-03","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
Melt mixing method was used in the preparation of Polystyrene (PS)/graphite composite with different graphite weight %.The electrical and structural properties of the composite were studied using Keithley two-point probe and GBC EMMA X-ray diffractometer (XRD) respectively. The result showed that the electrical conductivity of the composites was improved as the weight percentage of graphite content increases but the percolation threshold was observed at 0.10wt%. The conductivity of the composites was also observed to increase at higher temperatures. The structural result showed that the amorphous structure of polystyrene was converted to crystalline as the weight% of the graphite increases which influences the degree of crystallinity. Keywords: polymer, graphite, composite, percolation threshold, electrical conductivity DOI : 10.7176/APTA/81-03 Publication date: December 31 st 2019
采用熔融混合法制备了不同石墨质量%的聚苯乙烯(PS)/石墨复合材料。采用Keithley两点探针和GBC EMMA x射线衍射仪(XRD)研究了复合材料的电学性能和结构性能。结果表明，随着石墨含量的增加，复合材料的电导率有所提高，但渗透阈值在0.10wt%时出现。在较高的温度下，复合材料的电导率也有所提高。结构结果表明，随着石墨含量的增加，聚苯乙烯的非晶态结构向结晶转变，而石墨含量的增加影响了聚苯乙烯的结晶度。关键词:聚合物，石墨，复合材料，渗透阈值，电导率DOI: 10.7176/APTA/81-03出版日期:2019年12月31日
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