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Investigation on a novel polysilylaryl-enyne/Ca0.7La0.2TiO3 composite with an ultra-high dielectric constant and excellent temperature resistance
Peng, HY; Huang, YC; Deng, SF; Yao, XG; Lin, HX
2020-11-10
Source PublicationCOMPOSITES SCIENCE AND TECHNOLOGY
ISSN0266-3538
SubtypeArticle
AbstractThis article reports a novel category of thermosetting composite prepared by compounding a high temperature resistant polysilylaryl-enyne (PSAE) resin with different volume fractions (vol%) of high dielectric constant Ca0.7La0.2TiO3 (CLT) ceramics. The microstructure, dielectric properties and thermal properties of the PSAE/CLT composites were fully investigated. The results show that the PSAE/CLT composite with an ultra-high dielectric constant and low dielectric loss (epsilon(r) = 23.0 and tan delta = 3.4 x 10(-3), at 10 GHz) was obtained when the filler volume fraction reached 60%. Meanwhile, the coefficient of thermal expansion of the composite was reduced to 15.1 ppm/degrees C which could match copper foils. And a high thermal conductivity of 0.918 W/(m.K) could be obtained at 60 vol% filler loading. The glass transition temperatures of the PSAE/CLT composites were over 450 degrees C which indicate that all the PSAE/CLT composites have an excellent temperature resistance. The novel PSAE/CLT composite has important application prospect in high-frequency communication under a harsh temperature environment.
DOI10.1016/j.compscitech.2020.108447
WOS KeywordTHERMAL-CONDUCTIVITY ; FLEXIBLE COMPOSITES ; POLYMER COMPOSITES ; BEHAVIOR ; NANOCOMPOSITES ; NANO
Language英语
WOS Research AreaMaterials Science
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27628
Collection中国科学院上海硅酸盐研究所
Recommended Citation
GB/T 7714
Peng, HY,Huang, YC,Deng, SF,et al. Investigation on a novel polysilylaryl-enyne/Ca0.7La0.2TiO3 composite with an ultra-high dielectric constant and excellent temperature resistance[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2020.
APA Peng, HY,Huang, YC,Deng, SF,Yao, XG,&Lin, HX.(2020).Investigation on a novel polysilylaryl-enyne/Ca0.7La0.2TiO3 composite with an ultra-high dielectric constant and excellent temperature resistance.COMPOSITES SCIENCE AND TECHNOLOGY.
MLA Peng, HY,et al."Investigation on a novel polysilylaryl-enyne/Ca0.7La0.2TiO3 composite with an ultra-high dielectric constant and excellent temperature resistance".COMPOSITES SCIENCE AND TECHNOLOGY (2020).
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