Production and characterization of heat storing microcapsules with enhanced thermal stability by adding inorganic materials Inorganik madde ilave edilerek gelištirilmiš termal stabiliteye sahip isi depolama özellikli mikrokapsül üretimi ve karakterizasyonu

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Demirbaǧ S., ALAY AKSOY S.

Tekstil ve Muhendis, vol.20, no.92, pp.27-35, 2013 (Scopus, TRDizin) identifier

  • Publication Type: Article / Article
  • Volume: 20 Issue: 92
  • Publication Date: 2013
  • Doi Number: 10.7216/130075992013209204
  • Journal Name: Tekstil ve Muhendis
  • Journal Indexes: Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.27-35
  • Keywords: FDM, Gelatin, Gum Arabic, Microcapsule, Sodium alginate
  • Open Archive Collection: AVESIS Open Access Collection
  • Uşak University Affiliated: No

Abstract

Phase change materials (PCMs) are materials that supply thermal regulation by heat absorbing and releasing at certain phase change temperatures. Usage of microencapsulated paraffins as PCM attracts attention in textile industry. In this study, production of microencapsulated paraffin was carried out by complex coacervation. The aim is to increase the thermal stability of microcapsules with heat storage property. For this aim, inorganic Al2O3 (aluminum oxide) was added in microcapsule structure. Gelatin, sodium alginate and gum Arabic polymers were used to form microcapsule wall structure. Thermal properties of microcapsules such as enthalpy and phase change temperature and thermal stability were analyzed by DSC (Differential scanning calorimetry) and TGA (Thermogravimetric Analysis) instruments, respectively. Morphology of microcapsules was characterized by optical microscopy and SEM (Scanning electron microscopy), as chemical structures of them were analyzed by FT-IR spectroscopy.