Combination of Natural and Thermosensitive Polymers in Flocculation of Fine Silica Dispersions
Joint Authors
Montserrat Ponce-Vargas, Sandra
Steinbach, Christine
Licea-Claverie, Angel
Schwarz, Simona
Genest, Sabine
Source
International Journal of Carbohydrate Chemistry
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-11-11
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
A novel strategy for faster and better flocculation in solid-liquid separation processes is reported: the use of the natural polyelectrolyte chitosan (CH2500) in combination with the biocompatible thermosensitive polymer poly(N-vinylcaprolactam) (PNVCL).
Silica dispersions (Aerosil OX50) were used as model and evaluated by means of analytical centrifuge, laser diffraction, and turbidimetry studies.
Results show that the sedimentation velocity is doubled by addition of PNVCL and that at 45°C the density of the sediment is 33% higher, as compared to the use of CH2500 only.
This results from the temperature sensitive behavior of PNVCL that phase-separate expelling water at temperatures higher than its LCST (32–34°C) leading to compaction of the flocs.
By using this strategy the sediment is more compact, contains less water, and contains a very small amount of biodegradable CH2500 and biocompatible PNVCL.
American Psychological Association (APA)
Licea-Claverie, Angel& Schwarz, Simona& Steinbach, Christine& Montserrat Ponce-Vargas, Sandra& Genest, Sabine. 2013. Combination of Natural and Thermosensitive Polymers in Flocculation of Fine Silica Dispersions. International Journal of Carbohydrate Chemistry،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-456728
Modern Language Association (MLA)
Licea-Claverie, Angel…[et al.]. Combination of Natural and Thermosensitive Polymers in Flocculation of Fine Silica Dispersions. International Journal of Carbohydrate Chemistry No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-456728
American Medical Association (AMA)
Licea-Claverie, Angel& Schwarz, Simona& Steinbach, Christine& Montserrat Ponce-Vargas, Sandra& Genest, Sabine. Combination of Natural and Thermosensitive Polymers in Flocculation of Fine Silica Dispersions. International Journal of Carbohydrate Chemistry. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-456728
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-456728