3D Printable concentrated liquid metal composite with high thermal conductivity.

ABSTRACT: Heat dissipation materials in which fillers are dispersed in a polymer matrix typically do not exhibit both high thermal conductivity (k) and processability due to a trade-off. In this paper, we fabricate heat dissipation composites which overcome the trade-off using liquid metal (LM). By exceeding the conventional filler limit, ten times higher k is achieved for a 90 vol% LM composite compared with k of 50 vol% LM composite. Further, an even higher k is achieved by introducing h-BN between the LM droplets, and the highest k in this study was 17.1 W m^-1 K^-1. The LM composite is processable at room temperature and used as inks for 3D printing. This combination of high k and processability not only allows heat dissipation materi

SUBMITTER: Moon S 

PROVIDER: S-EPMC8524151 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature