Next Article in Journal
Cutting Modeling of Hybrid CFRP/Ti Composite with Induced Damage Analysis
Next Article in Special Issue
Development of Hollow Steel Ball Macro-Encapsulated PCM for Thermal Energy Storage Concrete
Previous Article in Journal
Towards Lead-Free Piezoceramics: Facing a Synthesis Challenge
Previous Article in Special Issue
Preparation and Characterization of Microencapsulated Phase Change Materials for Use in Building Applications
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle

Preparation and Characterization of Inorganic PCM Microcapsules by Fluidized Bed Method

1,2,*,†, 1,†, 3,† and 1,2,†
Department of Chemical Engineering and Mineral Processing and Center for Advanced Study of Lithium and Industrial Minerals (CELiMIN), University of Antofagasta, Av. Universidad de Antofagasta 02800, Campus Coloso, Antofagasta 127300, Chile
Solar Energy Research Center (SERC-Chile), Av Tupper 2007, Piso 4, Santiago 8370451, Chile
GREA Innovació Concurrent, Edifici CREA, Universitat de Lleida, Pere de Cabrera s/n, Lleida 25001, Spain
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: A. Inés Fernández
Materials 2016, 9(1), 24;
Received: 7 October 2015 / Revised: 20 November 2015 / Accepted: 25 November 2015 / Published: 4 January 2016
PDF [2523 KB, uploaded 4 January 2016]


The literature shows that inorganic phase change materials (PCM) have been very seldom microencapsulated, so this study aims to contribute to filling this research gap. Bischofite, a by-product from the non-metallic industry identified as having good potential to be used as inorganic PCM, was microencapsulated by means of a fluidized bed method with acrylic as polymer and chloroform as solvent, after compatibility studies of both several solvents and several polymers. The formation of bischofite and pure MgCl2·6H2O microcapsules was investigated and analyzed. Results showed an efficiency in microencapsulation of 95% could be achieved when using 2 min of fluidization time and 2 kg/h of atomization flow. The final microcapsules had excellent melting temperatures and enthalpy compared to the original PCM, 104.6 °C and 95 J/g for bischofite, and 95.3 and 118.3 for MgCl2·6H2O. View Full-Text
Keywords: phase change material; inorganic; microencapsulation; fluidization; bischofite; MgCl2·6H2O phase change material; inorganic; microencapsulation; fluidization; bischofite; MgCl2·6H2O

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Ushak, S.; Cruz, M.J.; Cabeza, L.F.; Grágeda, M. Preparation and Characterization of Inorganic PCM Microcapsules by Fluidized Bed Method. Materials 2016, 9, 24.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top