石墨烯掺杂聚合物复合材料介电性能建模
收稿日期: 2023-09-01
修回日期: 2023-11-17
录用日期: 2023-12-12
网络出版日期: 2023-12-18
基金资助
国家自然科学基金(U2230204);宁波国际科技合作项目(2023H018)
Modeling study on dielectric properties of graphene⁃doped polymer composites
Received date: 2023-09-01
Revised date: 2023-11-17
Accepted date: 2023-12-12
Online published: 2023-12-18
Supported by
National Natural Science Foundation of China(U2230204);Ningbo International Science and Technology Cooperation Project(2023H018)
方子唯 , 何晶靖 , 林京 . 石墨烯掺杂聚合物复合材料介电性能建模[J]. 航空学报, 2024 , 45(14) : 429510 -429510 . DOI: 10.7527/S1000-6893.2023.29510
A dielectric model of graphene-doped polymer composites is proposed based on the interfacial polarization theory， and the effect of graphene on the effective permittivity of the composites is described. The proposed model explains the interaction between graphene nanoplatelets and polymer matrix at the interfacial layer and calculates the local permittivity and the local electric field of the interfacial layer. With the control variable method， the influence of material properties in the dielectric model is analyzed. Compared with the traditional empirical model， the proposed dielectric model clarified the mechanism of the effect of the upper limit separation distance， the potential barrier height， the matrix layer conductivity， the graphene nanoplatelet sizes， and other factors on the effective permittivity. The effective permittivity of multiple binary and ternary dielectric composites is predicted. The validity of the proposed model is verified by comparing with the experimental values of samples and literature.
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