Zobrazeno 1 - 10
of 35
pro vyhledávání: '"W.J. Wildeboer"'
Publikováno v:
Powder Technology. 230:1-13
Nowadays many particulate products are coated to avoid dust formation and breakage when subjected to forces with different magnitude and direction. In order to distinguish the influence of each force, different testers are needed. In this work Purox-
Publikováno v:
Particle & Particle Systems Characterization. 29:285-303
The present research aims to characterize the particle size distribution of sub micron particles suspended in a liquid. The particles milled are an organic poorly water soluble crystalline product. To characterize the size of these particles, differe
Autor:
W.J. Wildeboer, Stephen L. A. Hennart, V. Drouet, M.C. Domingues, P. van Hee, Gabrie M.H. Meesters
Publikováno v:
Chemical Engineering Science. 71:484-495
The objective of this work was to characterize a sub-micron grinding process in a wet ball mill including the agglomeration of fines inside the grinding chamber. To do so a population balance model has been developed. A Dynomill ball mill was used an
Publikováno v:
Advanced Powder Technology. 23:64-70
The purpose of the present study is to obtain better understanding of the influence of the coating thickness, h , coating formulation, T g , and fluid bed temperature, T bed , variables on the resistance to attrition of the coated sodium benzoate ref
Publikováno v:
Journal of Thermal Analysis and Calorimetry, 109(1)2012
Hydroxypropyl methylcellulose (HPMC) and polyvinyl alcohol (PVA) are important polymers in pharmaceutical, food and other industries being largely used as encapsulation agents. The characterization of two reference grades of HPMC (Pharmacoat® 603 an
Publikováno v:
European Journal of Pharmaceutical Sciences. 42:262-272
A novel spraying apparatus was developed to obtain reproducible free sprayed films. Aqueous solutions of PolyVinyl Alcohol PVA 4-98, HydroxyPropyl MethylCellulose HPMC 603 and HPMC 615 were used as reference coating materials. The apparatus is compos
Publikováno v:
Powder Technology
Powder Technology, 2011, 206 (1-2), pp.99-111. ⟨10.1016/j.powtec.2010.03.040⟩
Powder Technology, 2011, 206 (1-2), pp.99-111. ⟨10.1016/j.powtec.2010.03.040⟩
Polymer-coated particles have been produced by top-spray fluid bed coater and both morphology and resistance to attrition have been analysed using Scanning Electron Microscope, SEM and Repeated Impact Tester, RIT respectively. Coating thickness, coat
Publikováno v:
Advanced Powder Technology. 21:663-675
This work demonstrates the potentiality of X-ray micro tomography as a powerful tool for morphological characterization of coated particles and, in particular, of their coating layer. X-ray micro tomography provides a high level of details at both mi
Publikováno v:
Powder Technology. 199:226-231
The objective of this work was to investigate the physical stability of sub-micron particle suspensions of organic crystalline food compounds after grinding. A Dynomill ball mill was used in combination with zirconium oxide grinding medium beads. The
Publikováno v:
Powder Technology. 198:56-60
The objective of this work was to investigate the mechanism of very fine grinding in a wet ball mill as a function of process parameters, i.e. rotation speed of the mill and grinding medium bead size. The ball mill used was a Dynomill and the grindin