| Titre : | Applying an experimental design to improve the characteristics of microcapsules containing phase change materials for fabric uses (2009) |
| Auteurs : | Luz Sánchez, Auteur ; Engracia Lacasa, Auteur ; Manuel Carmona, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 47 N° 23, Décembre 2008) |
| Article en page(s) : | p. 9783–9790 |
| Note générale : | Chemistry engineering |
| Langues : | Anglais |
| Tags : | Experimental design Characteristics of microcapsules Fabric uses |
| Résumé : | Microcapsules with a high amount of PRS paraffin wax encapsulated and narrow size distribution were prepared by a Shirasu porous glass (SPG) emulsification technique and a subsequent suspensionlike polymerization process. An experimental design approach, based on a central composite design, was used to determine quantitatively the effect of RepSol-YPF Paraffin (PRS) paraffin wax/styrene mass ratio (PRS/St), percentage of polyvinylpyrrolidone/styrene mass ratio (% PVP/St), and water/styrene mass ratio (H2O/St) on the phase change material (PCM) microcapsules properties. The % PVP/St mass ratio was the most important parameter affecting the particle size distribution. The thermal energy storage of microcapsules increases with the PRS/St mass ratio used. The following synthesis conditions, mass ratios PRS/St of 1.02, % PVP/St of 9.43, and H2O/St of 8.23, allowed the the proper main particle size in number (4.80 μm) for fabrics applications containing the maximum phase change material encapsulated with a latent heat of 102.42 J/g to be achieved. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie801107e |
