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Colloid and Polymer Science
Erschienen in: Colloid and Polymer Science 10/2017

31.08.2017 | Original Contribution

Preparation, characterization, and thermal stability of double-composition shell microencapsulated phase change material by interfacial polymerization

verfasst von: Shaofeng Lu, Tianwei Shen, Jianwei Xing, Qingwen Song, Cheng Xin

Erschienen in: Colloid and Polymer Science | Ausgabe 10/2017

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Abstract

Polyurea/polyurethane double-composition shell microcapsules with n-octadecane as the main core material were prepared by interfacial polymerization. The outer polyurea shell was formed by the polymerization of toluene-2,4-diisocyanate (TDI) and diethylene triamine (DETA), and the inner polyurethane shell was formed by the polymerization of TDI and polypropylene glycol 2000 (PPG2000). The phase change property, chemical structure, surface morphology, and thermal stability of microcapsules were investigated by differential scanning calorimetry (DSC), FTIR, SEM, TEM, and thermal gravimetric analysis. The results show that the melting temperature and melting enthalpies of double-composition shell microcapsules were 28.6 °C and 143 J g−1, respectively, and only one exothermic peak for n-octadecane and three peaks for microcapsules were observed in the DSC cooling curve. The prepared microcapsules with the average diameter 3 ~ 5 μm had a smooth and compact surface. The thermal stabilities and compactness of the microcapsules with double-composition shells were greatly improved compared to those of the microcapsules with single-composition shells.
Vorheriger Artikel Polymer type and molecular weight dictate the encapsulation efficiency and release of Quercetin from polymeric micelles
Nächster Artikel Functional group penetration thickness and intraparticle diffusivity of electrospun poly(acrylonitrile) ion-exchange fibers

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Metadaten
Titel
Preparation, characterization, and thermal stability of double-composition shell microencapsulated phase change material by interfacial polymerization
verfasst von
Shaofeng Lu
Tianwei Shen
Jianwei Xing
Qingwen Song
Cheng Xin
Publikationsdatum
31.08.2017
Verlag
Springer Berlin Heidelberg
Erschienen in
Colloid and Polymer Science / Ausgabe 10/2017
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-017-4189-3

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