Zprávy památkové péče 2017, 77(4):451-454
Removal of mineral oils from the surface of inorganic materials using aqueous microemulsions
- Fakulta chemické technologie VŠCHT
The removal of impurities containing mineral oils from the surface of tiles or plaster is often one of necessary steps taken in the rehabilitation of historic buildings. Oily dirt is not only an aesthetic problem, but it also reduces the possibilities for further surface treatments (paint, penetration, etc.). The water repellent character of these impurities virtually eliminates merely washing it with water. The use of organic solvents alone not only poses a fire hazard but also presents health risks to the implementing personnel and the risk of environmental pollution. Aqueous microemulsions containing a small amount of organic solvents are an effective cleaning agent in such cases. The article summarizes the experience with the successful use of microemulsions differing by the type of surfactant (anionic SDS and nonionic Tween 20) and solvent (xylene, cyclohexane) in the removal of impurities containing mineral oils from the surface of fired tile and terrazzo tiles.
Keywords: cleaning, oil microemulsion, tiles
Published: December 1, 2017 Show citation
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