Preparation and properties of Ca0.7La0.2TiO3 ceramic filled cyanate ester resin high frequency dielectric composite

ZHANG Heng; HUANG Yanchun; PENG Haiyi; MIU Jinbo; DENG Shifeng; YAO Xiaogang; LIN Huixing

doi:10.13801/j.cnki.fhclxb.20210128.001

Volume 38 Issue 11

Nov. 2021

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ZHANG Heng, HUANG Yanchun, PENG Haiyi, et al. Preparation and properties of Ca0.7La0.2TiO3 ceramic filled cyanate ester resin high frequency dielectric composite[J]. Acta Materiae Compositae Sinica, 2021, 38(11): 3757-3763. doi: 10.13801/j.cnki.fhclxb.20210128.001

Citation:

ZHANG Heng, HUANG Yanchun, PENG Haiyi, et al. Preparation and properties of Ca_0.7La_0.2TiO₃ceramic filled cyanate ester resin high frequency dielectric composite[J]. Acta Materiae Compositae Sinica, 2021, 38(11): 3757-3763. doi: 10.13801/j.cnki.fhclxb.20210128.001

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Preparation and properties of Ca_0.7La_0.2TiO₃ceramic filled cyanate ester resin high frequency dielectric composite

doi: 10.13801/j.cnki.fhclxb.20210128.001

1.
East China University of Science and Technology, School of Materials Science and Engineering, Key Laboratory of Specially Functional Polymeric Materials and Related Technology of the Ministry of Education, Shanghai 200237, China
2.
Information Materials and Devices Research Center, Shanghai Institute of Ceramics, Chinese Academy of Science, Shanghai 200050, China

Received Date: 2020-11-17
Accepted Date: 2021-01-20

Available Online: 2021-01-28

Publish Date: 2021-11-01

Abstract

Abstract

The Ca_0.7La_0.2TiO₃ ceramic with excellent dielectric properties was filled into cyanate ester (CE) resin to prepare Ca_0.7La_0.2TiO₃/CE composite by a melt pouring technique. The results show that dense microstructure is observed in the composites with different filler volume fractions. The Ca_0.7La_0.2TiO₃/CE composite with a high dielectric constant (ε) and low dielectric loss (tanδ) (ε=25.7, tanδ=0.0055, at 10 GHz) is obtained when the filler volume fraction reaches 40%. Meanwhile, the bending strength reaches 130 MPa. And the thermal conductivity increases to 0.8601 W/(m·K), which can effectively dissipate heat. TGA results show that compared with CE resin, the composites have higher thermal stability and have good application prospects in high-frequency communications, integrated circuits and other fields.
- cyanate ester,
- ceramics,
- dielectric constant,
- dielectric loss,
- mechanical properties,
- thermal stability
Long Abstrsct
Innovation Points

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References(21)

References

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