کلیدواژهها
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Coaxial nozzle, core/shell particle,
encapsulation, morphology,
n-nonadecane, thermal energy storage
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چکیده
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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 mm, 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.
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