Lamellar Composites of Vertical Graphene and Phase-Change Materials for Highly Efficient Heat Dissipation
University of Science and Technology of China · Division of Materials Science and Engineering
Abstract
High-performance thermal interface materials (TIMs) often encounter the trade-off between high thermal conductivity and superior compliance. Herein, we report a graphene-based lamellar composite consisting of vertical graphene films and modified paraffin wax, fabricated by a layer-by-layer rolling assembly. Owing to the excellent deformability and confined flow of melted paraffin wax between graphene films, the composite shows a low contact thermal resistance of 17 K mm2 W–1 at 60 psi as a heat transfer interface, without leakage of paraffin wax. Due to the synergistic effect between the high heat capacity of paraffin wax and the high thermal conductivity of graphene films, the composite TIM yields an…
Citation impact
- FWCI
- 41.74
- Percentile
- 100%
- References
- 53
Authors
4- XTXiaoqian Teng
University of Science and Technology of China, Division of Materials Science and Engineering
- CYChuanren YeCorresponding
University of Science and Technology of China, Division of Materials Science and Engineering
- SZShantao Zhang
University of Science and Technology of China, Division of Materials Science and Engineering
- YZYanwu ZhuCorresponding
University of Science and Technology of China, Division of Materials Science and Engineering
Topics & keywords
- Thermal conductivity
- Lamellar structure
- Graphene
- Composite number
- Paraffin wax
- Heat flux
- Heat transfer
- Thermal resistance
- Affordable and clean energy
Funding
- NNNational Natural Science Foundation of ChinaAwards: 52325202, 52273239
- UOUniversity of Science and Technology of ChinaAward: F19582025
- NKNational Key Research and Development Program of ChinaAward: 2020YFA0711502
- FRFundamental Research Funds for the Central UniversitiesAwards: WK2060250106, WK9990000170