Design and characteristic analysis of a new nozzle for preparing microencapsulated particles by RESS / Ya-qing Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 6, N° 3 (09/2009)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 3 (09/2009) . - p. 377-382 Titre : Design and characteristic analysis of a new nozzle for preparing microencapsulated particles by RESS Type de document : texte imprimé Auteurs : Ya-qing Liu, Auteur ; Gui-zhe Zhao, Auteur ; You-yi Sun, Auteur ; Fa-Xing Zhang, Auteur ; Li Xiao-ying, Auteur Année de publication : 2009 Article en page(s) : p. 377-382 Note générale : Bibliogr. Langues : Américain (ame) Tags : RESS  Microcapsule  Design  of  nozzle  Technology  coating  Red  phosphorus Index. décimale : 667.9 Revêtements et enduits Résumé : A new nozzle was designed for the technology of making microencapsulated particles by rapid expansion of supercritical solution (RESS). The design is based on the theory of gas dynamics in which the potential energy of high stagnation pressure is converted totally into effective velocity energy. Therefore, a high momentum of the exit jet can be obtained for improving the capability of removing molten debris quickly. Furthermore, the microencapsulated red phosphorus particles were prepared by RESS with the new nozzle, and the structure and property of the microencapsulated red phosphorus particles were characterized by the SEM images, droplet concentration distributions, and moisture absorption ratio. The results show that the process can effectively encapsulate the red phosphorus particles with the paraffin. DOI : 10.1007/s11998-008-9145-1 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9145-1.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=6118 [article]

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Fabrication of fine microcapsulated red phosphorus particles by SCF-RESS with a new structure nozzle / Ya-qing Liu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 5, N° 4 (12/2008)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 5, N° 4 (12/2008) . - p. 465-471 Titre : Fabrication of fine microcapsulated red phosphorus particles by SCF-RESS with a new structure nozzle Type de document : texte imprimé Auteurs : Ya-qing Liu, Auteur ; Fa-Xing Zhang, Auteur ; You-yi Sun, Auteur ; Gui-zhe Zhao, Auteur Année de publication : 2008 Article en page(s) : p. 465-471 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Dioxyde de carbone Encapsulation Fluides supercritiques Microcapsules Phosphore Rouge (couleur) Index. décimale : 660.2 Génie chimique Résumé : A novel process of preparing microencapsulated red phosphorus particles by rapid expansion of supercritical fluids (RESS) was tested, in which a new kind of nozzle and supercritical CO2 as a solvent were used. The structure of the microencapsulated red phosphorus particles were characterized by scanning electron microscope (SEM) and transmission electron microscope (TEM). These results show that red phosphorus particles can be effectively encapsulated with paraffin by using the method. At the same time, how the moisture absorption ratio of microencapsulated red phosphorus particles was dependent on the experimental conditions was further investigated. The results suggest that paraffin-microencapsulated red phosphorus particles show a lower moisture absorption ratio within the experimental conditions of the extraction column and nozzle temperature of 120°C, extraction column pressure of more than 16 MPa, and a mass flow of core particles (0.5 g/min). DOI : 10.1007/s11998-008-9091-y En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9091-y.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3472 [article]

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