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Kinetic studies on aerogel formation, ageing and ambient pressure drying using an analytical tool box

Schwan, Marina and Heinrich, Charlotte and Tannert, René and Milow, Barbara and Kamal Mohamed, Seeni Meera and Ignatzi, Benjamin and Peters, Oliver and Greyz, Oleg (2022) Kinetic studies on aerogel formation, ageing and ambient pressure drying using an analytical tool box. 6th international seminar on Aerogels, 28.09-30.09.2022, Hamburg, Germany.

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Abstract

Consideration of economic and ecological aspects along the process chain of a new product is of enormous importance with regard to successful technology development and market launch. In order to reach global climate goals, emissions must be drastically reduced. In Germany, industrial processes are responsible for about 28% of the total energy consumption, emphasizing the need for saving energy in that area. Aerogels have the potential to replace conventional materials in a lot of applications and therefore, a high demand for their production is predicted. Hence, finding solutions also for energy-efficient production of this materials is of great importance. For the synthesis of some aerogels, the most energy-intensive process steps are the aging and drying of the gels in an oven. Reduction of the power consumption can be achieved by optimizing the dwell times and temperatures of the aerogels in these processes. To this end, it is necessary to investigate and understand the processes and kinetics of the individual synthesis steps in greater detail. In this work, we show selected results of our analytical tool box for the kinetic analysis of sol-gel processes as well as ageing and drying processes under ambient pressure. The setup enables analyses to be carried out inside the heated reaction vessels. In addition, it is possible to investigate aliquots of the reaction mixtures offline by different methods. We present initial results of aerogel case studies using different analytical inline and atline methods.

Item URL in elib:https://elib.dlr.de/188745/
Document Type:Conference or Workshop Item (Poster)
Title:Kinetic studies on aerogel formation, ageing and ambient pressure drying using an analytical tool box
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schwan, Marinamarina.schwan (at) dlr.dehttps://orcid.org/0000-0001-6329-8164
Heinrich, CharlotteCharlotte.Heinrich (at) dlr.dehttps://orcid.org/0000-0002-8970-9598
Tannert, RenéRene.Tannert (at) dlr.dehttps://orcid.org/0000-0001-9484-8886
Milow, BarbaraBarbara.Milow (at) dlr.dehttps://orcid.org/0000-0002-6350-7728
Kamal Mohamed, Seeni MeeraKamalMohamed.SeeniMeera (at) dlr.dehttps://orcid.org/0000-0002-8812-1362
Ignatzi, Benjaminbenjamin.ignatzi (at) dlr.deUNSPECIFIED
Peters, OliverUNSPECIFIEDUNSPECIFIED
Greyz, Olegoleg.greyz (at) dlr.deUNSPECIFIED
Date:2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Aerogels, kinetic study, gelation, aging, RF aerogels
Event Title:6th international seminar on Aerogels
Event Location:Hamburg, Germany
Event Type:international Conference
Event Dates:28.09-30.09.2022
Organizer:TUHH
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - FFAE - Fahrzeugkonzepte, Fahrzeugstruktur, Antriebsstrang und Energiemanagement
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogels and Aerogel Composites
Deposited By: Schwan, Marina
Deposited On:17 Oct 2022 08:13
Last Modified:17 Oct 2022 08:13

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