Behaviors of Thermal Conductivities in Multicomponent Polymer Composite Sheets Including Core-Shell Particles with Nanoporous Shell Layer
- Behaviors of Thermal Conductivities in Multicomponent Polymer Composite Sheets Including Core-Shell Particles with Nanoporous Shell Layer
- Thermal conductivity; Polymer Composites; Core-shell powders; Nanostructure; Metal; Alumina; Thermal interface materials; Heat spreading
- Issue Date
- 대한화학회 추계 학술대회
- In the high-power light-emitting diodes display and multi-functional electronic devices, there are critical issues such as heat dissipation and electromagnetic interference which cause a program to malfunction or to health hazards.1~4 To solve these issues, multi-component composites with high thermal performance have recently been studied by many researchers.
In this study, thermal conductivities of multi-component polymer composites of core-shell particles with a nanoporous nanostructured shell layer were investigated. Soft-magnetic FeCr core and alumina shell particles were fabricated by a supercritical fluid technology combined with sol-gel processing and subsequent heat treatment. As-prepared core-shell particles and additional alumina powders were blended with a polyolefin binder solution, and then were tape-casted onto the Mylar film. Heat-spreadable composite sheets consisting of the core-shell particles with a mesoporous -Al2O3 shell were fabricated and their thermal conductivities were measured. The multi-component nanocomposites showed much higher thermal conductivity compared to that of the simple mixture composites of the FeCr-alumina. Thermal conductivities of three-component composite sheets including core-shell particles with nanostructured shell layer was discussed from the results of a modified thermal conductivity theory and microstructural analysis.
- Appears in Collections:
- KIST Publication > Conference Paper
- Files in This Item:
There are no files associated with this item.
- RIS (EndNote)
- XLS (Excel)
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.