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Form-stable phase change composites with high thermal conductivity and electrical insulation
- Source :
- Jouranl of Energy Storage; August 2022, Vol. 52 Issue: 1
- Publication Year :
- 2022
-
Abstract
- The commercialization of phase change materials (PCMs) based on paraffin is obstructed by the drawbacks of leakage and low thermal conductivity. Herein, we developed form-stable phase change composites via trapping paraffin into triblock copolymer. The hybrid filler, namely boron nitride and Ag-coated hollow glass microspheres (Ag@HGMs), was introduced to enhance the thermal conductivity of the composites. The latent heat values of composites could be easily tailored in a range of 157.6–192.4 J g−1by changing the loading of filler. Interestingly, the addition of boron nitride and Ag@HGMs hybrid filler has little impact on electrical insulation property, and displays a synergistic effect on the heat transfer improvement within the composites. The sample BN/Ag@HGMs-4 exhibits excellent latent heat, electrical insulation performance, thermal recycling properties and stability, and the thermal conductivity reaches up to 1.54 W m−1 K−1, which has great potential application in thermal management and heat energy collection system.
Details
- Language :
- English
- ISSN :
- 2352152x
- Volume :
- 52
- Issue :
- 1
- Database :
- Supplemental Index
- Journal :
- Jouranl of Energy Storage
- Publication Type :
- Periodical
- Accession number :
- ejs59630695
- Full Text :
- https://doi.org/10.1016/j.est.2022.104836