Journal
MATERIALS LETTERS
Volume 291, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2021.129475
Keywords
Biomaterials; Thermal properties; Microencapsulated phase-change materials; Chitosan; Type B gelatin; Composite shell
Funding
- National Natural Science Foundation of China [51173109]
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The study successfully used biodegradable chitosan/gelatin co-emulsifier as composite shell to encapsulate n-tetradecanol, achieving good latent heat and encapsulation efficiency of the microcapsules. The prepared microcapsules exhibit excellent thermal stability and thermal cycling reliability during the phase change process.
Microencapsulated phase-change materials (MEPCMs) possess promising application in storing energy and protecting environment of biomaterials. However, the MEPCMs have the difficulty of low encapsulation efficiency and irregular shape. In this study, biodegradable chitosan/gelatin co-emulsifier as composite shell was used to encapsulate n-tetradecanol through oil-in-water-in-oil (O/W/O) method, and then crosslinked with glutaraldehyde (GTA). The results reveal that the latent heat and encapsulation efficiency of the microcapsules reach 146.88 J g(-1) and 70.94%, respectively. Besides, the prepared microcapsules exhibit great thermal stability and thermal cycling reliability during the phase change process. (C) 2021 Elsevier B.V. All rights reserved.
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