Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.1735
Fulltext available Open Access
Publisher DOI: 10.3390/ma11081287
Title: Polysaccharide-based aerogel bead production via jet cutting method
Language: English
Authors: Preibisch, Imke 
Niemeyer, Philipp 
Yusufoğlu, Yusuf 
Gurikov, Pavel 
Milow, Barbara 
Smirnova, Irina 
Keywords: aerogel;biopolymer;pectin;alginate;chitosan;beads;jet cutting;Open Access Publishing
Issue Date: 25-Jul-2018
Publisher: Multidisciplinary Digital Publishing Institute
Source: Materials 11 (8): 1287 (2018)
Journal or Series Name: Materials 
Abstract (english): The aim of this work is to develop a method to produce spherical biopolymer-based aerogel particles, which is capable for scale-up in the future. Therefore, the jet cutting method is suggested. Amidated pectin, sodium alginate, and chitosan are used as a precursor (a 1–3 wt. % solution) for particle production via jet cutting. Gelation is realized via two methods: the internal setting method (using calcium carbonate particles as cross-linkers and citric and acidic acid for pH adjustment) and the diffusion method (in calcium chloride solutions). Gel particles are subjected to solvent exchange to ethanol and consequent supercritical drying with CO2. Spherical aerogel particles with narrow particle size distributions in the range of 400 to 1500 μm and a specific surface area of around 500 m2/g are produced. Overall, it can be concluded that the jet cutting method is suitable for aerogel particle production, although the shape of the particles is not perfectly spherical in all cases. However, parameter adjustment might lead to even better shaped particles in further work. Moreover, the biopolymer-based aerogel particles synthesized in this study are tested as humidity absorbers in drying units for home appliances, particularly for dishwashers. It has been shown that for several cycles of absorption and desorption of humidity, aerogel particles are stable with an absorption capacity of around 20 wt. %.
URI: http://tubdok.tub.tuhh.de/handle/11420/1738
DOI: 10.15480/882.1735
ISSN: 1996-1944
Other Identifiers: doi: 10.3390/ma11081287
Institute: Thermische Verfahrenstechnik V-8 
Type: (wissenschaftlicher) Artikel
Funded by: Deutsche Forschungsgemeinschaft (DFG)
Project: Open Access Publizieren 2018 - 2019 / TU Hamburg 
New generation of nanoporous organic and hybrid aerogels for industrial applications: from the lab to pilot scale production - NanoHybrids 
Appears in Collections:Publications with fulltext

Files in This Item:
File Description SizeFormat
materials-11-01287.pdf26,14 MBAdobe PDFThumbnail
View/Open
Show full item record

Page view(s)

280
Last Week
6
Last month
10
checked on Feb 28, 2020

Download(s)

153
checked on Feb 28, 2020

Google ScholarTM

Check

Export

This item is licensed under a Creative Commons License Creative Commons