4.7 Article

Synergistic Enhanced Thermal Conductivity and Crack Resistance of Reactor Epoxy Insulation with Boron Nitride Nanosheets and Multiwalled Carbon Nanotubes

期刊

NANOMATERIALS
卷 12, 期 18, 页码 -

出版社

MDPI
DOI: 10.3390/nano12183235

关键词

epoxy; boron nitride nanosheets; carbon nanotubes; thermal conductivity; epoxy crack

资金

  1. National Natural Science Foundation of China [52107020]
  2. Postdoctoral Science Foundation of China [2018M643475]
  3. Key R&D project of Sichuan Province [2021YFG0284]

向作者/读者索取更多资源

This study reports on epoxy composites enhanced by ternary fillers of boron nitride nanosheets (BNNSs), multiwalled carbon nanotubes (MWCNTs), and silica (SiO2) nanoparticles. The obtained composites exhibit high thermal conductivity, improved mechanical strength, and low dielectric properties, providing guidance for optimizing the design of high-performance materials.
Epoxy composites with high thermal conductivity, excellent dielectric, and mechanical properties are very promising for solving epoxy cracking faults in reactors and for extending their service life. In this work, we report on epoxy composites enhanced by ternary fillers of boron nitride nanosheets (BNNSs), multiwalled carbon nanotubes (MWCNTs), and silica (SiO2) nanoparticles. The obtained BNNSs/MWCNTs/SiO2/epoxy composites exhibit a high thermal conductivity of 0.9327 W m(-1) K-1, which is more than 4-fold higher than that of pure epoxy. In addition, the resultant composites present an improved mechanical strength (from 2.7% of epoxy to 3.47% of composites), low dielectric constant (4.6), and low dielectric loss (0.02). It is believed that the integration of multifunctional properties into epoxy composites provides guidance for optimizing the design of high-performance materials.

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