Application of monosaccharides derivatives in colloidal processing of aluminum oxide |
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Authors: | Pawel Falkowski Paulina Bednarek Anna Danelska Tadeusz Mizerski Mikolaj Szafran |
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Affiliation: | 1. Unilever R&D Discover, Colworth Science Park, Sharnbrook, MK44 1LQ, UK;2. CNR Ieni-Istituto per l’Energetica e le Interfasi, Via de Marini 6, 16149 Genova, Italy |
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Abstract: | Obtaining highly loaded, time-stable and relatively low viscosity suspensions approaches colloidal processing to be very convenient and effective route of shaping of nanopowders. In order to obtain well dispersed, homogenous ceramic slurries, certain additives are given. Saccharides, particularly monosaccharides, as well as their derivatives, were found to be a group of effectively working processing agents in case of alumina, which has been used as a solid phase of highly loaded nanosuspensions. This class of chemical compounds can be described by a series of advantages – they are non-toxic, water-soluble, inexpensive, etc. In this paper suspensions of nano- and submicro-alumina powders with addition of d-fructose, 1-O-methyl-d-fructose, d-glucose and 3-O-acrylic-d-glucose have been studied in terms of their rheological properties, moreover the properties of as-received green bodies have been presented. |
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