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Ag-NPs/MWCNT composite-modified silver-epoxy paste with improved thermal conductivity
Yanchao Li1, Guoyou Gan1, Yukuan Huang1
1School of Material Science and Engineering, Kunming University of Science and Technology, Key Laboratory of Advanced Materials of Yunnan Province Kunming 650093 Yunnan China ganguoyou@kmust.edu.cn.
RSC Advances
|May 6, 2022
Summary
Silver nanoparticles/multi-walled carbon nanotube composites enhance electronic paste thermal conductivity. This advancement addresses critical heat dissipation challenges in high-performance electronics.
Area of Science:
- Materials Science
- Nanotechnology
- Electronics Engineering
Background:
- Effective heat dissipation is crucial for high-performance electronics.
- Electronic pastes are a key solution for thermal management.
- Developing advanced materials for pastes is essential.
Purpose of the Study:
- To synthesize silver nanoparticles/multi-walled carbon nanotube (Ag-NPs/MWCNT) composites.
- To modify electronic pastes with these novel composites.
- To evaluate the impact on thermal conductivity and material properties.
Main Methods:
- Chemical synthesis of Ag-NPs/MWCNT composites.
- Micromorphology and spectral analysis (e.g., FESEM).
- Thermal conductivity, thermogravimetry (TG) analyses of modified pastes.
Main Results:
- Ag-NPs uniformly distributed on MWCNTs (average size 8.29 nm).
- Improved connectivity of silver flakes in the paste via Ag-NPs/MWCNTs.
- Enhanced thermal conductivity from 0.73 to 0.96 W m-1 K-1.
- Observed increase in weight loss with composite addition.
Conclusions:
- Ag-NPs/MWCNT composites effectively improve silver-epoxy paste thermal conductivity.
- The enhanced paste is suitable for high-performance electronic applications.
- Further investigation into weight loss is warranted.
