Foaming of polysiloxane resins with ethanol: A new route to pyrolytic macrocellular SiOC foams
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10315034" target="_blank" >RIV/00216208:11310/15:10315034 - isvavai.cz</a>
Alternative codes found
RIV/68081723:_____/15:00447628 RIV/61389013:_____/15:00447628 RIV/67985891:_____/15:00447628
Result on the web
<a href="http://dx.doi.org/10.1016/j.ceramint.2015.07.151" target="_blank" >http://dx.doi.org/10.1016/j.ceramint.2015.07.151</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.ceramint.2015.07.151" target="_blank" >10.1016/j.ceramint.2015.07.151</a>
Alternative languages
Result language
angličtina
Original language name
Foaming of polysiloxane resins with ethanol: A new route to pyrolytic macrocellular SiOC foams
Original language description
Polysiloxane foams as precursors to silicon oxycarbide (SiOC) foams were prepared via simultaneous cure and foaming of liquid methylsiloxane resins, using the relatively environment-friendly ethanol as blowing additive of the boiling-solvent-type, and concentrated aqueous ammonia as catalyst. In order to achieve foam regularity, siloxane-based surfactants were added, and bubble nucleation by mechanical stirring was performed. The precursor foams were subsequently pyrolysed in nitrogen at 1000 degrees C,yielding SiOC foams as end products. The properties of the latter were fine-tuned during the foaming of the precursors, by the amount of added ethanol and by the time of mechanical stirring prior to foaming. The so-obtained SiOC foams displayed densities of 0.17-0.42 g/cm(-3), corresponding to macro-porosities of 91-79%, compressive strength of 1-6 MPa, and elastic moduli of 0.2-1.6 GPa.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JI - Composite materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP107%2F12%2F2445" target="_blank" >GAP107/12/2445: SiOC ceramic foam from pyrolyzed polymer precursor as a core of thermally stable composite sandwich structures</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Ceramics International
ISSN
0272-8842
e-ISSN
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Volume of the periodical
41
Issue of the periodical within the volume
10
Country of publishing house
GB - UNITED KINGDOM
Number of pages
11
Pages from-to
13561-13571
UT code for WoS article
000362860900129
EID of the result in the Scopus database
2-s2.0-84939515640