Journal
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
Volume 155, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2022.106853
Keywords
A; Polymer-matrix composites (PMCs); Energy materials; B; Thermal properties; Cellulose-Mxene aerogels
Funding
- Natural Science Foundation of Guizhou University [X2019067]
- Science and Technology Plan Project of Guizhou Province [ZK[2021]240]
- National Natural Science Foundation of China [51874108]
- Guizhou Science and Technology Cooperation Project [[2020]5021]
- Graduate Research Foundation of Guizhou Province [YJSCXJH[2020]184]
- Cultivation Project of Guizhou University [[2020] 12]
Ask authors/readers for more resources
In this study, polyethylene glycol/MXene-cellulose aerogels fs-CPCMs with enhanced light-to-heat conversion, heat transfer, and storage were prepared using freezing casting and in situ encapsulation. The light-to-heat conversion efficiency of PMC fs-CPCMs reached 91.6% due to the presence of MXene. Dispersed MXene improved the heat transfer, and in situ encapsulation prevented reduction in latent heat.
The latent heats of form-stable composite phase change materials (fs-CPCMs) were usually reduced while synergistically improving their heat transfer and light-to-heat conversion properties. In this work, the polyethylene glycol/MXene-cellulose aerogels (PMC) fs-CPCMs with simultaneously enhanced light-to-heat conversion, heat transfer and heat storage were prepared by one-step in situ encapsulation method based on freezing casting. The light-to-heat conversion efficiency of PMC fs-CPCMs achieved ~ 91.6% due to the fact that the MXene acted as an effective photon captor and molecular heater under solar irradiation. The heat transfer of PMC fs-CPCMs was effectively improved by dispersed MXene due to the formation of heat conduction network or path. Importantly, the latent heats of PMC fs-CPCMs (about 183 J/g) were not reduced, because 90 wt% PEG was encapsulated in situ during the formation of pore structures of cellulose-Mxene aerogels under freezing casting. Moreover, the PMC fs-CPCMs showed excellent chemical compatibility and acceptable thermal stability.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available