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Aerogel-honeycomb sandwich composites based on resorcinol-formaldehyde and silica

Tannert, René and Henn, Fabian and Rhein, Benoit Jan and Hennes, Laura and Berkefeld, André and Ratke, Lorenz and Milow, Barbara (2018) Aerogel-honeycomb sandwich composites based on resorcinol-formaldehyde and silica. In: Proceedings 4th International Seminar on Aerogels "Properties-Manufacture-Applications", p. 26. International Society for the Advancement of Supercritical Fluids. 4th International Seminar on Aerogels, 24.-26. Sep. 2018, Hamburg, Deutschland.

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Abstract

Composites consisting of aerogels are lightweight materials with possible applications in many fields including the aerospace, automotive, and building sectors. In that context, we have previously demonstrated how aerogels derived from resorcinol-formaldehyde and silica can be mechanically reinforced using aramid-, paper-, or aluminum-based honeycomb structures as matrix in the sol-gel process. This poster describes efforts to produce sandwich materials using such honeycomb-aerogel-composites as core material, and metal sheets as coating. Qualitative studies regarding different adhesives and suitable joining methodology for aerogel-honeycomb composites, as well as joining of core composite and aluminum sheets of varying thickness are described. The resulting sandwich materials were characterized in terms of their thermal and mechanical behavior. More specifically, the thermal conductivity of sandwich materials and core components were determined using a heat flow meter or transient plane source technique, respectively. Regarding mechanical properties, compressive, tensile, shear, and bending tests were performed. The combined results allow for the design of aerogel composite sandwich materials with a balanced trade-off between thermal and mechanical properties. The studies presented herein will guide current and future efforts directed to the production of generic parts for automotive applications.

Item URL in elib:https://elib.dlr.de/121914/
Document Type:Conference or Workshop Item (Poster)
Title:Aerogel-honeycomb sandwich composites based on resorcinol-formaldehyde and silica
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Tannert, RenéRene.Tannert (at) dlr.dehttps://orcid.org/0000-0001-9484-8886
Henn, FabianWF-AEGUNSPECIFIED
Rhein, Benoit JanWF-AEGUNSPECIFIED
Hennes, LauraWF-AEGUNSPECIFIED
Berkefeld, Andréandre.berkefeld (at) dlr.deUNSPECIFIED
Ratke, Lorenzlorenz.ratke (at) dlr.dehttps://orcid.org/0000-0003-2487-4717
Milow, Barbarabarbara.milow (at) dlr.dehttps://orcid.org/0000-0002-6350-7728
Date:24 September 2018
Journal or Publication Title:Proceedings 4th International Seminar on Aerogels "Properties-Manufacture-Applications"
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:p. 26
Editors:
EditorsEmail
Smirnova, Irinairina.smirnova@tu-harburg.de
Perrut, MichelSEPAREX, Champigneulles, Frankreich
Ratke, Lorenzlorenz.ratke@gmx.de
Publisher:International Society for the Advancement of Supercritical Fluids
Status:Published
Keywords:Aerogele Wabenverbunde Sandwichverbundstrukturen
Event Title:4th International Seminar on Aerogels
Event Location:Hamburg, Deutschland
Event Type:international Conference
Event Dates:24.-26. Sep. 2018
Organizer:International Society for the Advancement of Supercritical Fluids (I.S.A.S.F.)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Terrestrial Vehicles (old)
DLR - Research area:Transport
DLR - Program:V BF - Bodengebundene Fahrzeuge
DLR - Research theme (Project):V - NGC Fahrzeugstruktur (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Research > Aerogele
Deposited By: Tannert, Dr. René
Deposited On:04 Oct 2018 10:20
Last Modified:20 Nov 2018 09:20

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