Foaming with wheat flour and starch – a new processing technique to obtain highly porous hydroxyapatite ceramics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F18%3A43916812" target="_blank" >RIV/60461373:22310/18:43916812 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Foaming with wheat flour and starch – a new processing technique to obtain highly porous hydroxyapatite ceramics
Original language description
Foaming with wheat flour is a new processing technique for the preparation of porous ceramics. This contribution presents rheological studies of hydroxyapatite (HA) suspensions and describes the preparation of highly porous HA ceramics using this new technique. Suspensions with 30, 35 and 40 wt.% HA and different types and amounts of deflocculants have been prepared and quantitatively characterized via rotational viscometry. Further rheological studies have been performed for optimized suspensions with 35 wt.% HA and 0.7 wt.% polyelectrolyte solution (Dolapix CE64), to which 10 and 30 vol.% of corn starch or 20 vol.% of wheat flour, have been added. After foaming of the wheat-flour-containing suspensions via mechanical agitation, highly porous HA ceramics are obtained with 82-83 % porosity after firing at 850 °C. Microscopic image analysis and mercury intrusion porosimetry are used to characterize the hierarchical microstructure of HA ceramics with its partially sintered matrix.
Czech name
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Czech description
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Project
<a href="/en/project/GA18-17899S" target="_blank" >GA18-17899S: Partially and fully sintered ceramics – processing, microstructure, properties, modeling and sintering theory</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the 14th International Conference on Polysaccharides – Glycoscience
ISBN
978-80-86238-80-7
ISSN
2336-6796
e-ISSN
neuvedeno
Number of pages
6
Pages from-to
132-137
Publisher name
Česká společnost chemická
Place of publication
Praha
Event location
Praha
Event date
Nov 7, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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