Ethyl Silicate

Ethyl silicate ethyl silicate is mainly used as a crosslinking agent in silicone polymers, coatings for carpets and other objects. Ethyl silicate is also used in the production of aerogel. These applications exploit the reactivity of the si-or bonds. Use of ethyl hydroxy ethyl cellulose to aid in dispersion and suspension of pigment and control of application rheology in inorganic zinc-rich primers made with partially hydrolyzed ethyl silicate resins is described. Microstructure and phase analysis of ethyl silicate-bonded alumina-zircon refractories alumina-zircon refractories are prepared using an aqueous ethyl silicate solution as the gel-polymerized bond. Test specimens are heat-treated by reaction sintering at different temperature (1450 - 1600°c) and holding times (1 - 4 h) to yield new refractory phases zirconium dioxide and mullite. The specimens are tested for strength, porosity, sintering shrinkage, apparent density, and chemical and phase composition using x-ray diffractometry and electron scanning microscopy. Reactive sintering is shown to be a effective route towards obtaining ethyl-silicate-bonded alumina-zircon refractories with tailored microscopic and physical properties. Document type: research article doi: 10. 1007/s11148-005-0088-0 affiliations: 1: yildiztechnical university, istanbul, turkey, dental casting investment : ethyl silicate bonding investment material dental materials, ethyl compounds, silicates, mould-making, binding agents, investment casting, instructions for use, specimen preparation, thermal expansion, expansion (deformation), high-temperature testing, marking, test equipment, strength of materials