期刊
THERMOCHIMICA ACTA
卷 557, 期 -, 页码 1-6出版社
ELSEVIER
DOI: 10.1016/j.tca.2013.01.019
关键词
Microencapsulated phase change materials; Hydrated salt; Thermal properties; Thermal energy storage
资金
- National Natural Science Foundation of China [51006024]
- Scientific and Technological Project of Guangdong Province [20108060900003, 2011A080801015]
- Special Funding of Combination of Production, Teaching and Research of Guangdong Provincial and National Ministry of Education [2011B090400446]
- The Special Funding of discipline construction of Guangdong Province [2012KJCX0041]
Microcapsules loaded by disodium hydrogen phosphate heptahydrate (Na2HPO4.7H(2)O) were prepared by means of the suspension copolymerization-solvent volatile method, with modified polymethylmethacrylate (PMMA) as coating polymer under the conditions of various organic solvents. The formation of the microencapsulated phase change materials (MEPCMs)-PMMA/Na2HPO4-7H(2)O was investigated and analyzed. The morphology of the resultant materials was characterized by using scanning electron microscope (SEM) and phase contrast microscope. Its final composition was confirmed by the Fourier transformation infrared (FT-IR). Thermo gravimetric analyzer (TGA) and differential scanning calorimetry (DSC) were adopted to reveal its thermal stability and thermal properties. Results indicated that the materials owned improved subcooling degree and good thermal properties, enabling the materials to be one promising phase change materials for thermal energy storage. (C) 2013 Elsevier B.V. All rights reserved.
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