材料科学
复合材料
电磁屏蔽
热导率
氮化硼
碳纳米管
导电体
小型化
复合数
电磁干扰
电子包装
保温
电磁干扰
电气工程
纳米技术
工程类
图层(电子)
作者
Ping Zhang,Xin Ding,Yanyan Wang,Yi Gong,Kang Zheng,Lin Chen,Xingyou Tian,Xian Zhang
标识
DOI:10.1016/j.compositesa.2018.11.007
摘要
Miniaturization and high frequency are two key features of the next generation electronic devices, thus advanced electronic packaging materials with high thermal conductivity and excellent electromagnetic shielding performance (EMI SE) are highly expected. This work presents poly (vinylidene fluoride)@multi-wall carbon nanotube/boron nitride ([email protected]/BN) composites with effective EMI SE and satisfactory insulation and thermal conductivity through a tailor-made segregated double network. [email protected] composite microspheres were fabricated as the thermal and electrical conductive micro-network, then another BN macro-network was further prepared to provide electrical insulation and further thermal conductivity enhancement. This so-called double segregated network of [email protected]/BN composites shows a thermal conductivity of 0.83 W m−1 K−1, electron insulation of 8.33 × 10−14 S cm−1 and electromagnetic shielding of 8.68 dB at 8.2 GHz when loaded 5 wt% MWCNT and 40 wt% BN. The study sheds new lights on the development of special functional materials and the [email protected]/BN composites are highly promising as a future electronic packaging material.
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