Affiliation:
1. Key Laboratory of Advanced Textile Materials and Manufacturing Technology and Engineering Research Center for Eco‐Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Provincial Engineering Research Center for Green and Low‐carbon Dyeing & Finishing Zhejiang Sci‐Tech University Hangzhou 310018 China
2. Department of Thyroid Surgery The Second Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310018 China
Abstract
AbstractThermal interface materials (TIMs) are in desperate desire with the development of the modern electronic industry. An excellent TIM needs desired comprehensive properties including but not limited to high thermal conductivity, low Yong's modulus, lightweight, as well as low price. However, as is typically the case, those properties are naturally contradictory. To tackle such dilemmas, a strategy of construction high‐performance TIM inspired by alveoli is proposed. The material design includes the self‐alignment of graphite into 3D interconnected thermally conductive networks by polydimethylsiloxane beads (PBs) ‐the alveoli; and a small amount of liquid metal (LM) – capillary networks bridging the PBs and graphite network. Through the delicate structural regulation and the synergistic effect of the LM and solid graphite filler, superb thermal conductivity (9.98 ± 0.34 W m−1 K−1) can be achieved. The light emitting diode (LED) application and their performance in the central processing unit (CPU) heat dispersion manifest the TIM developed in the work has stable thermal conductivity for long‐term applications. The thermally conductive, soft, and lightweight composites are believed to be high‐performance silicone bases TIMs for advanced electronics.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Zhejiang Province
Zhejiang Sci-Tech University
Subject
Biomaterials,Biotechnology,General Materials Science,General Chemistry