Flexible thermal conductive Al₂O₃@siloxane composite with rapid self-healing property based on carboxyl-amine dynamic reversible bonds.

ABSTRACT: Thermal interface materials (TIMs) are one of the efficacious ways to alleviate the heat accumulation problem of microelectronics devices. However, conventional TIMs based on polydimethylsiloxane (PDMS) always suffer from mechanical damage, leading to shortened service life or loss of thermal conductivity. In this work, we fabricated a high-thermal conductivity and fast self-healable Al₂O₃@siloxane composite by hydrosilylation reaction. The siloxane matrix consisted of thermosetting silicone rubber matrix (SR) and heat reversibility matrix (SCNR); the SR was synthesized via hydrosilylation between silicon hydrogen bond and vinyl, the SCNR was fabricated by thermal-curing between amino and carboxyl functionalized PDMS. Different sized spherical Al₂O

SUBMITTER: Hu Z 

PROVIDER: S-EPMC8981771 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature