Thermal conductive behavior of zirconium boride coated by nanoalumina with different mass proportions in epoxy composites

Wu, Yi‐Cheng; He, Yannan; Yu, Zhiqiang; Liu, Xiaoyan

doi:10.1016/j.pnsc.2018.04.012

Cited by 7 publications

(1 citation statement)

References 25 publications

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“…At present, researchers have modified epoxy resin with adding small amount of microsized-ZrB 2 to improve the dielectric and thermal stability of the composites. [24][25][26][27] The results show that the incorporation of microsized-ZrB 2 could effectively improve the dielectric properties of epoxy resins, meanwhile the thermal stability and thermal conductivity of epoxy resins are also improved. However, polymer-based composites containing ZrB 2 nanopellets and their dielectric performance are rarely studied.…”

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confidence: 97%

Effect of ZrB₂ nanopellets on microstructure, dielectric, mechanical and thermal stability of polyimide

Pan

Yin

et al. 2021

High Performance Polymers

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Zirconium boride (ZrB2) with high electrical, thermal conductivity, chemical stability and low coefficient of thermal expansion has been considered promising boride ceramic. In this study, the new type polyimide(PI)-based composites filled with ZrB2 nanopellets were prepared via in-situ polymerization. The results show that the ZrB2 nanopellets are dispersed uniformly in the PI matrix and the ZrB2/PI composites with 0.5 wt.% loading exhibits outstanding dielectric, mechanical properties and thermal stability. A mechanism related to the microstructure is proposed to explain the performance improvement. ZrB2 with strong electron affinity could trigger charges to accumulate on its surface, which promotes the interface polarization and consequently enhance dielectric constant. The strong interactions between ZrB2 and PI beneficial to stress effectively transfer from the PI matrix to the ZrB2. The dense structure of the composites and the intrinsically high thermal conductivity of ZrB2 are conducive to heat transfer in the matrix and reduce heat accumulation. The dielectric constant, tensile strength and elongation at break of the composites are increased by 17.5%, 63% and 59.4% compared to pure PI. Meanwhile, the ZrB2/PI composites possess superior electrical insulation property. The comprehensive performance improvement of the composites share a broader prospect for its application in engineering.

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confidence: 97%

Effect of ZrB₂ nanopellets on microstructure, dielectric, mechanical and thermal stability of polyimide

Pan

Yin

et al. 2021

High Performance Polymers

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Thermal Properties of Boehmite-Epoxy Nanocomposites

Mandel

Abliz

Ziegmann

2021

Acting Principles of Nano-Scaled Matrix Additives for Composite Structures

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Excellent tribological properties of epoxy—Ti3C2 with three-dimensional nanosheets composites

et al. 2020

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As a widely used engineering polymer, epoxy resin has been successfully employed in high-performance components and setups. However, the poor thermal and friction properties of traditional epoxy resin greatly limit its application in many extreme environments. In this work, a new kind of epoxy-Ti3C2 with three-dimensional nanosheets (3DNS) composite which was designed by freeze-drying method showed up excellent thermal and friction properties. As a result, the coefficient of thermal expansion (CTE) of epoxy-Ti3C2 3DNS 3.0 composites was 41.9 ppm/K at 40 °C, which was lower than that of the traditional epoxy resin (46.7 ppm/K), and the thermal conductivity (TC) was also improved from 0.176 to 0.262 W/(m·K). Meanwhile, epoxy-Ti3C2 3DNS 1.0 composites showed up the best friction property, with wear rate 76.3% lower than that of epoxy resin. This work is significant for the research of high-performance composite materials.

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Thermal conductive behavior of zirconium boride coated by nanoalumina with different mass proportions in epoxy composites

Cited by 7 publications

References 25 publications

Effect of ZrB₂ nanopellets on microstructure, dielectric, mechanical and thermal stability of polyimide

Effect of ZrB₂ nanopellets on microstructure, dielectric, mechanical and thermal stability of polyimide

Thermal Properties of Boehmite-Epoxy Nanocomposites

Excellent tribological properties of epoxy—Ti3C2 with three-dimensional nanosheets composites

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Thermal conductive behavior of zirconium boride coated by nanoalumina with different mass proportions in epoxy composites

Cited by 7 publications

References 25 publications

Effect of ZrB2 nanopellets on microstructure, dielectric, mechanical and thermal stability of polyimide

Effect of ZrB2 nanopellets on microstructure, dielectric, mechanical and thermal stability of polyimide

Thermal Properties of Boehmite-Epoxy Nanocomposites

Excellent tribological properties of epoxy—Ti3C2 with three-dimensional nanosheets composites

Contact Info

Product

Resources

About

Effect of ZrB₂ nanopellets on microstructure, dielectric, mechanical and thermal stability of polyimide

Effect of ZrB₂ nanopellets on microstructure, dielectric, mechanical and thermal stability of polyimide