Microencapsulation of a fatty acid with Poly (melamine-urea-formaldehyde)

Basit Öğe Kaydı
dc.authorid0000-0003-3200-8595
dc.contributor.authorKonuklu, Yeliz
dc.contributor.authorPaksoy, Halime O.
dc.contributor.authorUnal, Murat
dc.contributor.authorKonuklu, Suleyman
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2014
dc.departmentNiğde ÖHÜ
dc.description.abstractThe main purpose of this study is to obtain leakage-free, thermally stable decanoic acid microcapsules (microPCMs) for thermal energy storage applications. Decanoic acid (capric acid) is an environmentally friendly fatty acid since it is obtained from vegetable and animal oils. MicroPCMs were prepared with different capsule wall materials via a one-step in situ polymerization technique. The properties of microencapsulated PCMs have been analyzed by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermal gravimetric analyzer (TGA), Fourier transform infrared (FTIR) spectra analysis and particle size analyzer. The microPCMs prepared using Poly(urea-formaldehyde) (PUF) exhibit higher heat capacities and the microPCMs prepared using Poly(melamine-formaldehyde) (PMF) exhibit higher thermal stabilities. In order to obtain microPCMs with better properties such as suitable latent heat and better heat resistance at high temperatures, we microencapsulated decanoic acid with Poly (melamine-urea-formaldehyde) (PMUF). Furthermore, the effects of surfactants on microPCMs with PMUF were investigated by SEM, a particle size analyzer, DSC, and TGA. The results show that the binary surfactant system was a suitable emulsifier for this process. We determined that the melting temperature was close to 33 degrees C, the latent heat storage capacity was about 88 J/g, and the mean particle diameter was 0.28 mu m for microPCMs with PMUF. We recommend decanoic acid microencapsulated with PMUF for thermally stable and leakage-free applications above 95 degrees C. (C) 2014 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScientific & Technical Research Council of Turkey (TUBITAK) [TUBITAK 111M614]; Research Projects Unit of Nigde University [FEB2011/18]
dc.description.sponsorshipWe would like to thank The Scientific & Technical Research Council of Turkey (TUBITAK) (The Project Code: TUBITAK 111M614) and Research Projects Unit of Nigde University (The Project Code: FEB2011/18) for their financial support for this study. We also would like to thank the editorial board and the anonymous reviewers for their helpful and constructive comments and suggestions thatgreatly contributed to improve the quality of the paper.
dc.identifier.doi10.1016/j.enconman.2014.01.042
dc.identifier.endpage390
dc.identifier.issn0196-8904
dc.identifier.issn1879-2227
dc.identifier.scopus2-s2.0-84894596201
dc.identifier.scopusqualityQ1
dc.identifier.startpage382
dc.identifier.urihttps://dx.doi.org/10.1016/j.enconman.2014.01.042
dc.identifier.urihttps://hdl.handle.net/11480/4187
dc.identifier.volume80
dc.identifier.wosWOS:000334897700039
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherPERGAMON-ELSEVIER SCIENCE LTD
dc.relation.ispartofENERGY CONVERSION AND MANAGEMENT
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectMicrocapsule
dc.subjectFatty acid
dc.subjectEncapsulation
dc.subjectPhase change material
dc.subjectThermal energy storage
dc.subjectBinary surfactant system
dc.titleMicroencapsulation of a fatty acid with Poly (melamine-urea-formaldehyde)
dc.typeArticle

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