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Latent heat storage by silica-coated polymer beads containing organic phase change materials
- 1.0458504 - ÚMCH 2017 RIV US eng J - Journal Article
Feczkó, T. - Trif, L. - Horák, Daniel
Latent heat storage by silica-coated polymer beads containing organic phase change materials.
Solar Energy. Roč. 132, July (2016), s. 405-414. ISSN 0038-092X. E-ISSN 1471-1257
R&D Projects: GA MŠMT(CZ) LH14318
Institutional support: RVO:61389013
Keywords : latent heat storage * phase change materials * porous beads by suspension polymerization
Subject RIV: CD - Macromolecular Chemistry
Impact factor: 4.018, year: 2016
Phase change materials (PCMs) are used for latent heat storage. Most promising applications of PCMs are waste heat recovery systems, solar heating systems, building energy conservation systems, and air-conditioning systems. Macroporous poly(ethylene dimethacrylate) (PEDMA) carrier beads were formed by the suspension polymerization technique, imbibed with paraffin or cetyl alcohol phase change materials and coated with a silica shell to prevent their aggregation and the leakage of PCM. PEDMA beads contained 75.6% paraffin and 53.1% cetyl alcohol resulting in high latent heat storage capacities. The melting and crystallizing enthalpies were 132.6 and 133.4 J/g, respectively for paraffin-loaded capsules, while 89.6 and 88.6 J/g, respectively for cetyl alcohol containing beads. The excellent latent heat storage of the capsules was retained after 1000 heating–cooling cycles indicating that the capillary forces of the silica-coated porous polymer beads efficiently prevented the leakage of the PCMs.
Permanent Link: http://hdl.handle.net/11104/0258791
Number of the records: 1