Speaker
Description
Sol-gel chemistry usually starts from liquid raw materials. These undergo hydrolysis and condensation. A sol is formed. Further condensation and/or solvent evaporation leads to a gel. IKTS uses these processes mainly for coatings and membrane preparation. Pure inorganic sols are used to form porous membranes of silicon dioxide, titania, zirconia or alumina for use in liquid filtration, membrane distillation, pervaporation, gas separation and extraction. A lot of commercially available organically modified alkoxy silanes allow to prepare organic-inorganic hybride gels. Coatings of these materials are used by IKTS for surface protection against corrosion and wear. Also electrical insulation and non-stick coatings are possible. Our unique PLASMAGEL coatings combine plasma spray with sol-gel coatings. An actual KIAT funded project with the Korean partner Sealink uses these coatings to improve the performance of rotary feedthroughs in high vacuum applications. For fire protection purposes a new transparent and flexible laminate was developed.
References
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| Keywords | Sol-Gel Chemistry, membrane separation technology, surface protection, fire protection |
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