Chitosan composite microencapsulated comb-like polymeric phase change material via coacervation microencapsulation. (15th November 2018)

• Record Type: Journal Article
• Authors: Huo, Xiaonan; Li, Wei; Wang, Yu; Han, Na; Wang, Jianping; Wang, Ning; Zhang, Xingxiang
• Is Part Of: Carbohydrate polymers. Volume 200(2018)
• Page Start: 602
• Page End: 610
• Publication Date: 2018-11-15
• Subjects: Chitosan -- Comb-like polymer -- Phase change material -- Microcapsule -- Coacervation; Polysaccharides -- Periodicals; Polysaccharides -- Periodicals; Polysaccharides -- Périodiques; Electronic journals; 547.78
• DOI: 10.1016/j.carbpol.2018.08.003
• Languages: English
• ISSNs: 0144-8617

Abstract

Graphical abstract: : styrene-maleic anhydride copolymer solution; : chitosan. Mechanism scheme of microencapsulation and resultant microcapsules. Highlights: The eco-friendly phase change micro/nanocapsules were successfully prepared. Raw materials and production methods are safe and non-toxic. Combined chitosan with phase change materials to expand their applications. Broaden the application of phase change materials in the medical field. Abstract: In order to reduce environmental pollution during microencapsulating phase change materials and expand their applications as well, a novel eco-friendly microencapsulated/nanoencapsulated phase change materials (Micro/NanoPCMs) and the corresponding encapsulation method were proposed and discussed in this study, where the natural chitosan and side-chain crystallizable comb-like polymer were selected as shell material and core material, respectively. During the encapsulating process via coacervation, the effects of different core-shell ratios on the morphology and thermal storage properties of microcapsules were discussed. FE-SEM and TEM was employed to investigate the morphology and microstructure of the microcapsules. The thermodynamics performance of microcapsules was studied using TGA and DSC. The encapsulation efficiency of microcapsules ranged from 49.82% to 68.99%, and the thermal stability temperature of microcapsules was measured to be 243.2 °C. The fabrication process where natural raw materials were employed and showing promising applications in such fields as medical treatment.