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Wet milling of alginate alco‐ and hydrogel composites : a facile top‐down approach for continuous production of aerogel microparticles
Citation Link: https://doi.org/10.15480/882.4948
Publikationstyp
Journal Article
Date Issued
2023-07
Sprache
English
TORE-DOI
Volume
2023
Issue
2
Article Number
2200674
Citation
Macromolecular Materials and Engineering 308 (7): 2200674 (2023-07)
Publisher DOI
Scopus ID
Publisher
Wiley-VCH GmbH
Peer Reviewed
true
Moving toward high-throughput production of biopolymer aerogelmicroparticles, in this work, the wet milling process is applied to hydrogelsand alcogels. Alcogels are then converted into aerogels by well-establishedsupercritical drying. Alginate and hybrid alginate/silica gels are used as amodel system. As the Young’s moduli of hydrogels significantly change whenwater is exchanged by ethanol, it is possible to study the effect of the gelstiffness on macroscopic and microstructural properties of the resultingaerogels. Influence of process parameters (milling speed and gap size) is alsoinvestigated. Smallest particles sizes and minimal changes in microstructureare obtained for completely solvent exchanged gels. The wet milling is shownto be a versatile method to obtain aerogel particles with diameters in therange 50–300μm.
Subjects
aerogel
alginate
colloid mill
microparticles
wet milling
DDC Class
540: Chemie
570: Biowissenschaften, Biologie
600: Technik
620: Ingenieurwissenschaften
Publication version
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Macro Materials Eng - 2023 - Schroeter - Wet Milling of Alginate Alco‐ and Hydrogel Composites A Facile Top‐Down.pdf
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