The design of multilayered structure network is an effective strategy to enhance the thermal conductivity and maintain the electrical insulating performance of thermal management materials. Multilaminar aligned silicone rubber (SR) flexible hybrids (SABE) with highly oriented and dispersed boron nitride (BN) and expanded graphite (EG) filler network were constructed successfully through layer by layer assembly of SR/ABN and SR/AEG prefabricated by a facile and scalable strategy of mechanical shearing. The SABE-6 composite with 4 assembly circles exhibited excellent in-plane thermal conductivity (TC) of 23.4 W m⁻¹ K⁻¹ and outstanding electrical insulation (volume resistance > 10¹⁴ Ω∙cm), which displayed the highest value among reported thermal conductive SR-based composites. The TC of SABE composite showed 14379% and 178% higher than that of pure SR and simple blending SR/BN/EG (SBE) composites, respectively, which ascribed to the highly oriented and dispersed filler network. The study provides a high property of SR-based composite thermal management materials.

多层结构网络的设计是提高导热系数并保持热管理材料的电绝缘性能的有效策略。通过将SR / ABN和SR / AEG层层组装成一个组件，成功地构建了具有高度取向和分散的氮化硼（BN）和膨胀石墨（EG）填料网络的多层取向硅橡胶（SR）柔性杂化材料（SABE）。以及可扩展的机械剪切策略。具有4个装配圈的SABE-6复合材料具有23.4 W m ^-1 K ^-1的出色的面内导热率（TC）和出色的电绝缘性（体积电阻> 10 ¹⁴Ω∙cm），在报告的SR导热复合材料中显示最高值。SABE复合材料的TC分别比纯SR和简单共混的SR / BN / EG（SBE）复合材料的TC高14379％和178％，这归因于高度定向和分散的填料网络。该研究提供了基于SR的复合热管理材料的高性能。