title: Preparation, characterisation and thermal properties of calcium alginate/n-nonadecane microcapsules fabricated by electro-coextrusion for thermo-regulating textiles.
abstract: The objective of this study is to develop a new technique for producing a phase change material (PCM) loaded biopolymer capsule for thermo-regulating textiles. Electro-coextrusion process fabricated a series of microencapsulated phase change material (MEPCM) based on n-nonadecane core and alginate shell. The influence of the flow rate ratio of the shell/core on the formation, encapsulation efficiency and thermal behaviour of a microencapsulated PCM has been investigated. The MEPCM was characterised using optical microscopy and differential scanning calorimetry (DCS). The size and the encapsulation efficiency of a capsule decreased as the flow rate ratio of the shell/core increased. The PCM microcapsules contained 56-84% n-nonadecane and the size range from 200 to 400 µm, as evaluated by DSC and optical microscopy, respectively. The experimental results show that the electro-coextrusion method has a potential technology for the encapsulation of PCMs for thermal storage.
authors: a Department of Textile Engineering , Isfahan University of Technology , Isfahan , Iran.
authors: Meghdad
authors: M
authors: Kamali Moghaddam
authors: a Department of Textile Engineering , Isfahan University of Technology , Isfahan , Iran.
authors: Sayed Majid
authors: SM
authors: Mortazavi
mesh_terms: D000464:Alginates / Q000737:chemistry*; D000473:Alkanes / Q000737:chemistry*; D002214:Capsules; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry
chemical_list: D000464:Alginates; D000473:Alkanes; D002214:Capsules; D006603:Hexuronic Acids; D020723:Glucuronic Acid; C061580:nonadecane
keywords: Coaxial nozzle; core/shell particle; encapsulation; morphology; n-nonadecane; thermal energy storage