Microstructural imaging of early gel layer formation in HPMC matrices

2006 ◽  
Vol 95 (10) ◽  
pp. 2145-2157 ◽  
Author(s):  
Gurjit S. Bajwa ◽  
Katrin Hoebler ◽  
Chris Sammon ◽  
Peter Timmins ◽  
Colin D. Melia
Keyword(s):  
Layer Formation ◽  
Gel Layer ◽  
Microstructural Imaging

scholarly journals Solute Adsorption and Gel Layer Formation during Ultrafiltration of Ovalbumin

2009 ◽  
Vol 15 (3) ◽  
pp. 225-232 ◽  
Author(s):  
Hiroshi NABETANI ◽  
Mitsutoshi NAKAJIMA ◽  
Shoji HAGIWARA ◽  
Atsuo WATANABE ◽  
Shin-ichi NAKAO ◽  
...  
Keyword(s):  
Layer Formation ◽  
Gel Layer ◽  
Solute Adsorption

scholarly journals Clogging and Gel-Layer Formation during Membrane Filtration and Its Effect on Analytical Data

1987 ◽  
Vol 60 (9) ◽  
pp. 3183-3188
Author(s):  
Manabu Igawa ◽  
Takeshi Yoshida ◽  
Chiaki Ohtake ◽  
Takashi Hayashita
Keyword(s):  
Membrane Filtration ◽  
Analytical Data ◽  
Layer Formation ◽  
Gel Layer

Investigating the effect of starting mode on food fat gel layer formation on cold surfaces

2013 ◽  
Vol 119 (3) ◽  
pp. 454-463 ◽  
Author(s):  
J.-Y. Huang ◽  
Y.M.J. Chew ◽  
D.I. Wilson
Keyword(s):  
Layer Formation ◽  
Gel Layer

scholarly journals A General Mechanism for Gel Layer Formation on Borosilicate Glass under Aqueous Corrosion

2020 ◽  
Vol 124 (9) ◽  
pp. 5132-5144 ◽  
Author(s):  
S. Gin ◽  
A.H. Mir ◽  
A. Jan ◽  
J.M. Delaye ◽  
E. Chauvet ◽  
...  
Keyword(s):  
Borosilicate Glass ◽  
General Mechanism ◽  
Layer Formation ◽  
Aqueous Corrosion ◽  
Gel Layer

Influence of hemicellulose aggregate and gel layer formation on flux and retention during nanofiltration of alkaline solutions

Desalination ◽  
2005 ◽  
Vol 175 (1) ◽  
pp. 121-134 ◽  
Author(s):  
R. Schlesinger ◽  
T. Röder ◽  
G. Götzinger ◽  
H. Sixta ◽  
M. Harasek ◽  
...  
Keyword(s):  
Alkaline Solutions ◽  
Layer Formation ◽  
Gel Layer

Surface rheological properties of soy glycinin: Gel layer formation and conformational aspects

Food Colloids ◽  
2007 ◽  
pp. 223-232
Author(s):  
Martin Bos ◽  
Anneke Martin ◽  
Joanke Bikker ◽  
Ton van Vliet
Keyword(s):  
Rheological Properties ◽  
Layer Formation ◽  
Gel Layer

Bituminised Waste Re-treatment: Replacement of the Bitumen Matrix by a Glass Matrix

2006 ◽  
Vol 932 ◽  
Author(s):  
Nathalie R.E.N. Impens ◽  
Isabelle M. Tennstedt ◽  
Karel Lemmens ◽  
Ben Gielen ◽  
Jo M.P. Van Laer ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Inductively Coupled Plasma ◽  
Corrosion Behaviour ◽  
Volume Ratio ◽  
Ionic Species ◽  
High Level Waste ◽  
Layer Formation ◽  
X Ray ◽  
Gel Layer ◽  
Short Period

ABSTRACTThe vitrification of nuclear waste salts similar to the salts present in Eurobitum produced by the former Eurochemic reprocessing plant, Mol-Dessel, Belgium, is investigated. In order to approach the composition of the high-level waste reference glass SON68, mixtures with different ratios of glass frit to waste salts have been prepared and vitrified. The concentration of the waste salts varied between 17 and 25 % by weight.To compare the short term corrosion behaviour with reference waste glass, leach tests have been performed. During 8 weeks, the glass samples were submitted to leach tests at 363 K using Milli Q water as leachant, at a glass exposed area over leachant volume ratio equal to 100 m−1.During this short period, scanning electron microscopy with energy dispersive X-ray analysis (SEM-EDX) showed no gel layer formation. This technique did not detect changes in the chemical composition. However, X-ray photoelectron spectroscopy (XPS) showed that the binding energy of the Zr 3d and Si 2p electrons decreased as a function of leaching time, indicating an increasing covalent character of the glass surface. Inductively coupled plasma-mass spectrometry (ICP-MS) of the leachate as a function of time shows that ionic species such as Na and K leach faster than e.g. Si and B. These results together with the XPS data suggest the onset of a gel layer formation. The effect of waste content in the glass on the leaching rate is also studied. The results are compared with similar leaching tests on R7T7 type SON68 glass. Most elements are better retained in the simulated Eurobitum glass than in the SON68 glass.

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