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Synergistic Enhanced Thermal Conductivity and Dielectric Constant of Epoxy Composites with Mesoporous Silica Coated Carbon Nanotube and Boron Nitride Nanosheet
| Content Provider | MDPI |
|---|---|
| Author | Hao, Yutao Li, Qihan Pang, Xianhai Gong, Bohong Wei, Chengmei Ren, Junwen |
| Copyright Year | 2021 |
| Description | Dielectric materials with high thermal conductivity and outstanding dielectric properties are highly desirable for advanced electronics. However, simultaneous integration of those superior properties for a material remains a daunting challenge. Here, a multifunctional epoxy composite is fulfilled by incorporation of boron nitride nanosheets (BNNSs) and mesoporous silica coated multi-walled carbon nanotubes $(MWCNTs@mSiO_{2}$). Owing to the effective establishment of continuous thermal conductive network, the obtained $BNNSs/MWCNTs@mSiO_{2}$/epoxy composite exhibits a high thermal conductivity of 0.68 W $m^{−1}$ $K^{−1}$, which is 187% higher than that of epoxy matrix. In addition, the introducing of mesoporous silica dielectric layer can screen charge movement to shut off leakage current between MWCNTs, which imparts $BNNSs/MWCNTs@mSiO_{2}$/epoxy composite with high dielectric constant (8.10) and low dielectric loss (<0.01) simultaneously. It is believed that the $BNNSs/MWCNTs@mSiO_{2}$/epoxy composites with admirable features have potential applications in modern electronics. |
| Starting Page | 5251 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma14185251 |
| Journal | Materials |
| Issue Number | 18 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-09-13 |
| Access Restriction | Open |
| Subject Keyword | Materials Industrial Engineering Boron Nitride Nanosheet Multi-walled Carbon Nanotubes Composites Thermal Conductivity Dielectric Properties |
| Content Type | Text |
| Resource Type | Article |
