Achieving a 3D thermally conductive while electrically insulating network in polybenzoxazine with a novel hybrid filler composed of boron nitride and carbon nanotubes
Wang Y, Wu W, Drummer D, Liu C, Tomiak F, Schneider K, Huang Z (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 12
Pages Range: 1-18
Article Number: 2331
Journal Issue: 10
Abstract
To solve the problem of excessive heat accumulation in the electronic packaging field, a novel series of hybrid filler (BN@CNT) with a hierarchical “line-plane” structure was assembled via a condensation reaction between functional boron nitride(f-BN) and acid treated carbon nanotubes (a-CNTs). The reactions with different mass ratios of BN and CNTs and the effect of the obtained hybrid filler on the composites’ thermal conductivity were studied. According to the results, BN@15CNT exhibited better effects on promoting thermal conductivity of polybenzoxazine(PBz) composites which were prepared via ball milling and hot compression. The thermally conductive coefficient value of PBz composites, which were loaded with 25 wt% of BN@15CNT hybrid fillers, reached 0.794 W·m−1·K−1. The coefficient value was improved to 0.865 W·m−1·K−1 with 15 wt% of BN@15CNT and 10 wt% of BN. Although CNTs were adopted, the PBz composites maintained insulation. Dielectric properties and thermal stability of the composites were also studied. In addition, different thermal conduction models were used to manifest the mechanism of BN@CNT hybrid fillers in enhancing thermal conductivity of PBz composites.
Authors with CRIS profile
Dietmar Drummer
Lehrstuhl für Kunststofftechnik
Florian Tomiak
Lehrstuhl für Kunststofftechnik
Kevin Schneider
Lehrstuhl für Kunststofftechnik
Involved external institutions
China (CN)How to cite
APA:
Wang, Y., Wu, W., Drummer, D., Liu, C., Tomiak, F., Schneider, K., & Huang, Z. (2020). Achieving a 3D thermally conductive while electrically insulating network in polybenzoxazine with a novel hybrid filler composed of boron nitride and carbon nanotubes. Polymers, 12(10), 1-18. https://dx.doi.org/10.3390/polym12102331
MLA:
Wang, Yi, et al. "Achieving a 3D thermally conductive while electrically insulating network in polybenzoxazine with a novel hybrid filler composed of boron nitride and carbon nanotubes." Polymers 12.10 (2020): 1-18.
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