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Si-O-C ceramic foams derived from polymethylphenylsiloxane precursor with starch as foaming agent

SYSNO ASEP	0448254
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Si-O-C ceramic foams derived from polymethylphenylsiloxane precursor with starch as foaming agent
Author(s)	Černý, Martin (USMH-B)_{RID, ORCID, SAI} Chlup, Zdeněk (UFM-A)_{RID, ORCID} Strachota, Adam (UMCH-V)_{RID, ORCID} Svítilová, Jaroslava (USMH-B) Schweigstillová, Jana (USMH-B)_{RID, ORCID, SAI} Halasová, Martina (UFM-A) Rýglová, Šárka (USMH-B)_{RID, ORCID, SAI}
Source Title	Journal of the European Ceramic Society. - : Elsevier - ISSN 0955-2219 Roč. 35, č. 13 (2015), s. 3427-3436
Number of pages	10 s.
Publication form	Print - P
Language	eng - English
Country	GB - United Kingdom
Keywords	pyrolysis ; ceramic foam ; precursor ; starch ; Si-O-C
Subject RIV	JI - Composite Materials
Subject RIV - cooperation	Institute of Physics of Materials - Ceramics, Fire-Resistant Materials and Glass
R&D Projects	GAP107/12/2445 GA ČR - Czech Science Foundation (CSF)
Institutional support	USMH-B - RVO:67985891 ; UFM-A - RVO:68081723 ; UMCH-V - RVO:61389013
UT WOS	000359029300008
EID SCOPUS	84937523126
DOI	10.1016/j.jeurceramsoc.2015.04.032
Annotation	Si-O-C ("black glass") ceramic foam was prepared by the foaming of a preceramic polymer, polymethylphenylsiloxane resin, and by its subsequent pyrolysis conducted up to 1000 degrees C. Prior to foaming, corn starch was blended with the diluted resin, in order to achieve uniform and small-sized pores. The foaming of the polymer blend was carried out simultaneously with its crosslinldng: escaping water vapour (forming from starch) served as the blowing agent. The apparent foam density can be controlled by adjusting the foaming temperature or by varying the amount of added starch. Both ways were used to prepare foam samples with porosity in the range of 70-90%. The porosity-dependent compressive strength of these foams was found to be in the range of 1-16 MPa. (C) 2015 Elsevier Ltd. All rights reserved.
Workplace	Institute of Rock Structure and Mechanics
Contact	Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216
Year of Publishing	2016

Number of the records: 1