Cellular catalyst supports gain an increasing importance for exhaust gas treatment and environmental catalysis. In combination with photocatalytical active components, a high light transmittance is necessary for high-efficiency activation. In order to obtain optically suitable glass foams, a novel process was developed based on the use of a preceramic polymer. During thermal decomposition, the polymer provides highly dispersed silicon dioxide (SiO2), which simultaneously reacts with a glass modifier to form a borosilicate glass. Because of a low processing temperature of 1050 degrees C or less, the open-cellular structure was retained and is therefore suitable for coatings and applications where high permeability and optical transmittance are required.
Copyright:Copyright [2011]. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.