The use of polyimide-modified aluminum nitride fillers in AlN@PI/Epoxy composites with enhanced thermal conductivity for electronic encapsulation

Yongcun Zhou, Yagang Yao, Chia Yun Chen, Kyoungsik Moon, Hong Wang, Ching Ping Wong

研究成果: Article同行評審

76 引文 斯高帕斯(Scopus)

摘要

Polymer modified fillers in composites has attracted the attention of numerous researchers. These fillers are composed of core-shell structures that exhibit enhanced physical and chemical properties that are associated with shell surface control and encapsulated core materials. In this study, we have described an apt method to prepare polyimide (PI)-modified aluminum nitride (AlN) fillers, AlN@PI. These fillers are used for electronic encapsulation in high performance polymer composites. Compared with that of untreated AlN composite, these AlN@PI/epoxy composites exhibit better thermal and dielectric properties. At 40â €...wt% of filler loading, the highest thermal conductivity of AlN@PI/epoxy composite reached 2.03â €...W/mK. In this way, the thermal conductivity is approximately enhanced by 10.6 times than that of the used epoxy matrix. The experimental results exhibiting the thermal conductivity of AlN@PI/epoxy composites were in good agreement with the values calculated from the parallel conduction model. This research work describes an effective pathway that modifies the surface of fillers with polymer coating. Furthermore, this novel technique improves the thermal and dielectric properties of fillers and these can be used extensively for electronic packaging applications.

原文English
文章編號4779
期刊Scientific reports
4
DOIs
出版狀態Published - 2014 四月 24

All Science Journal Classification (ASJC) codes

  • 多學科

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