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Manufacturing and characterization of water filled micro-composites
Ist Teil von
The Journal of supercritical fluids, 2012-06, Vol.66, p.274-281
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2012
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
[Display omitted]
► Manufacture of water-filled micro-composites. ► Encapsulation by high pressure spray process. ► Characterization of the particles, particle characteristics and water distribution. ► Low field H NMR and DSC suggest the presence of three different water states in the micro-composites.
The goal of the present work was to manufacture water-filled micro-composites using a high pressure encapsulation process, PGSS (Particles from Gas Saturated Solutions), and to characterize the products by different analytical methods. As shell material a vegetable fat (hydrogenated Castor oil) is used.
The obtained composites have tailor made properties like bulk density, particle size, morphology and water content. A special interest was laid on the distribution of water (core material) within the composites. Water distribution is studied using two different methods: H NMR and DSC. The analytical results suggest the presence of three different “types” of water: water between the particles, entrapped and bound water