Latent heat storage by silica-coated polymer beads containing organic phase change materials

0458504 - ÚMCH 2017 RIV US eng J - Článek v odborném periodiku
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
Grant CEP: GA MŠMT(CZ) LH14318
Institucionální podpora: RVO:61389013
Klíčová slova: latent heat storage * phase change materials * porous beads by suspension polymerization
Kód oboru RIV: CD - Makromolekulární chemie
Impakt faktor: 4.018, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0258791