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PROPERTIES OF PHOSPHORUS-CONTAINING GEOPOLYMER MATRIX AND FIBER-REINFORCED COMPOSITE

SYSNO ASEP	0357806
Druh ASEP	C - Konferenční příspěvek (mezinárodní konf.)
Zařazení RIV	D - Článek ve sborníku
Název	PROPERTIES OF PHOSPHORUS-CONTAINING GEOPOLYMER MATRIX AND FIBER-REINFORCED COMPOSITE
Tvůrce(i)	Bortnovsky, O. (CZ) Bezucha, P. (CZ) Dědeček, Jiří (UFCH-W)_{RID, ORCID} Sobalík, Zdeněk (UFCH-W)_RID Vodičková, V. (CZ) Kroisová, D. (CZ) Roubíček, P. (CZ) Urbanová, Martina (UMCH-V)_{RID, ORCID}
Zdroj.dok.	PROPERTIES OF PHOSPHORUS-CONTAINING GEOPOLYMER MATRIX AND FIBER-REINFORCED COMPOSITE. - Westerville : American Ceramic Soc, 2009 / Singh D. ; Kriven W. M. - ISSN 0196-6219 - ISBN 978-0-470-45752-8
Rozsah stran	s. 283-299
Poč.str.	17 s.
Akce	International Conference on Advanced Ceramics and Composites /33./
Datum konání	18.01.2009-23.01.2009
Místo konání	Daytona Beach
Země	US - Spojené státy americké
Typ akce	WRD
Jazyk dok.	eng - angličtina
Země vyd.	US - Spojené státy americké
Klíč. slova	material science ; ceramics
Vědní obor RIV	CF - Fyzikální chemie a teoretická chemie
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
	AV0Z40500505 - UMCH-V (2005-2011)
UT WOS	000281694100027
Anotace	In this work properties of geopolymer matrices based on silica fumed prepared with different alumina sources and phosphoric acid were discussed. To evaluate the pot-life of geopolymer resin at room temperature, the viscosity of geopolymer resins was coherently measured. Matrices were analyzed by means of XRD, FTIR ATR, SEM-EDS, Al-27, Si-29 and P-31 MAS NMR. Thermodimensional stability of fiber-reinforced composites was measured by dilatometry. Water resistance was tested in boiling water; chemical composition and NMR spectra of treated geopolymer matrices were analyzed. The nature of the alumina source influenced the mechanical and thermomechanical properties of the matrix. Although the phosphorus added enhanced the dimensional stability of geopolymer matrix/composites at high temperature, more than 50% of phosphorus was soluble and washed out of the matrix during boiling in water. The rest of phosphorus was probably bound to geopolymer or adhered to silica fumed particles.
Pracoviště	Ústav fyzikální chemie J.Heyrovského
Kontakt	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Rok sběru	2011

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