Rapid Thermochromic and Highly Thermally Conductive Nanocomposite Based on Silicone Rubber for Temperature Visualization Thermal Management in Electronic Devices
Document Type
Article
Publication Date
2-1-2024
Abstract
Effective heat dissipation and real-time temperature monitoring are crucial for ensuring the long-term stable operation of modern, high-performance electronic products. This study proposes a silicon rubber polydimethylsiloxane (PDMS)-based nanocomposite with a rapid thermal response and high thermal conductivity. This nanocomposite enables both rapid heat dissipation and real-time temperature monitoring for high-performance electronic products. The reported material primarily consists of a thermally conductive layer (Al2O3/PDMS composites) and a reversible thermochromic layer (organic thermochromic material, graphene oxide, and PDMS nanocoating; OTM-GO/PDMS). The thermal conductivity of OTM-GO/Al2O3/PDMS nanocomposites reached 4.14 W m(-1) K-1, reflecting an increase of 2200% relative to that of pure PDMS. When the operating temperature reached 35, 45, and 65 degrees C, the surface of OTM-GO/Al2O3/PDMS nanocomposites turned green, yellow, and red, respectively, and the thermal response time was only 30 s. The OTM-GO/Al2O3/PDMS nanocomposites also exhibited outstanding repeatability and maintained excellent color stability over 20 repeated applications.
Keywords
silicon rubber, thermal conductivity, reversiblethermochromic, thermal management, temperature alarmindicator
Divisions
mechanical
Funders
State Key Laboratory of Solid Waste Reuse for Building Materials (2023AFB319),Natural Science Foundation of Hubei Province,Open Project Program of High-Tech Organic Fibers Key Laboratory of Sichuan Province (SWR-2022-008),State Key Laboratory of Solid Waste Reuse for Building Materials
Publication Title
ACS Applied Materials & Interfaces
Volume
16
Issue
6
Publisher
American Chemical Society
Publisher Location
1155 16TH ST, NW, WASHINGTON, DC 20036 USA