EP 2558430 A1 20130220 - MATRIX BASED ON NANOCRYSTALLINE CRISTOBALITE FOR A THERMOSTRUCTURAL FIBROUS COMPOSITE MATERIAL
Title (en)
MATRIX BASED ON NANOCRYSTALLINE CRISTOBALITE FOR A THERMOSTRUCTURAL FIBROUS COMPOSITE MATERIAL
Title (de)
MATRIXBASIERTER NANOKRISTALL-CRISTOBALIT FÜR EIN THERMOSTRUKTURELLES FASERVERBUNDMATERIAL
Title (fr)
MATRICE À BASE DE CRISTOBALITE NANO-CRISTALLINE POUR MATÉRIAU COMPOSITE FIBREUX THERMOSTRUCTURAL.
Publication
Application
Priority
- FR 1001582 A 20100414
- FR 2011000185 W 20110328
Abstract (en)
[origin: WO2011128521A1] The invention relates to a matrix for thermostructural fibrous composite materials, which is obtained by geopolymer synthesis based on nanocrystalline cristobalite resulting from the crystallization of geopolymer micelles of potassium polysiloxonate K-(Si-O-Si-O)n. The nanocrystalline cristobalite is in the form of micelles and/or microspheres which have dimensions of less than 1 µm, preferably less than 500 nm, and are interconnected by an amorphous phase. It contains at least 85 wt % oxide S1O2 with at most 15 wt %, preferably at most 10 wt %, alkaline oxide K20. The nanocrystalline cristobalite results from the crystallization of geopolymer micelles of potassium polysiloxonate by a thermal treatment at a temperature which is preferably between 600°C and 800°C, for a duration of less than 30 min. The fibrous composite material impregnated with said matrix is thermostructural.
IPC 8 full level
C04B 28/00 (2006.01); C03C 14/00 (2006.01); C04B 35/14 (2006.01); C04B 35/80 (2006.01)
CPC (source: EP US)
C03C 14/00 (2013.01 - US); C04B 28/006 (2013.01 - EP US); C04B 35/14 (2013.01 - EP US); C04B 35/80 (2013.01 - EP US); C04B 41/009 (2013.01 - EP US); C04B 41/5089 (2013.01 - EP US); C04B 41/68 (2013.01 - EP US); C04B 2235/3201 (2013.01 - EP US); C04B 2235/3217 (2013.01 - EP US); C04B 2235/3427 (2013.01 - EP US); C04B 2235/5244 (2013.01 - EP US); C04B 2235/528 (2013.01 - EP US); C04B 2235/9607 (2013.01 - EP US); Y02P 40/10 (2015.11 - EP US)
Citation (search report)
See references of WO 2011128521A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011128521 A1 20111020; WO 2011128521 A4 20111208; EP 2558430 A1 20130220; FR 2958934 A1 20111021; US 2013130886 A1 20130523; US 8975201 B2 20150310
DOCDB simple family (application)
FR 2011000185 W 20110328; EP 11732501 A 20110328; FR 1001582 A 20100414; US 201113640365 A 20110328