Journal
MATERIALS
Volume 14, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/ma14010139
Keywords
eutectic hydrated salt; phase change materials; magnesium oxychloride cement; thermal energy storage
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Funding
- National Natural Science Foundation of China (NSFC) [U1607113, U1803116]
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An energy-efficient eutectic hydrated salt phase change material based on sodium carbonate decahydrate and disodium hydrogen phosphate dodecahydrate was prepared and encapsulated into expanded graphite to produce form-stable composite phase change materials. Testing in a simulated indoor environment showed excellent thermal insulation effects, indicating the potential architectural applications of this exciting porous composite phase shift material.
An energy-efficient eutectic hydrated salt phase change material based on sodium carbonate decahydrate and disodium hydrogen phosphate dodecahydrate (SD) was prepared. Then, SD was encapsulated into expanded graphite (EG) to produce form-stable composite phase change materials (SD/E), which indicated a positive effect on preventing the leakage of SD, decreasing the supercooling and improving the thermal conductivity. SD/E was further tested for thermal efficiency by simulating the indoor environment with a house-like model which was composed of SD/E and magnesium oxychloride cement. The results showed an excellent thermal insulation effect. This exciting porous composite phase shift material reveals possible architectural applications because of the attractive thermos-physical properties of SD/E.
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