INSTITUTUL NAÅ¢IONAL DE CERCETARE-DEZVOLTARE - ICECHIM

2. Multifunctional materials and nanocomposites - PPolymer nanocomposites for public buildings floorsMARIN LaurentiuMARIN CatalinaInstitutul National de Cercetare – Dezvoltare pentru Chimie si PetrochimieICECHIMBucuresti, Splaiul Independentei nr. 202, sector 6, 060021A public institution is a juridical entity in which the access of the persons is absolutefree. Schools, city halls, councils, public order institutions, juridical courts, hospitals anddispensaryes may be considered public institutions.Public institutions have a specific characteristic: High pedestrian traffic values. So, intime, the floor can sustain an abrasive wear. In case of soft materials floors the abrasivephenomenon is more accentuated (ex. floors made of wood have short duty service due thelow wood resistence ). The concrete mosaic and metalic floors have a very good resistencebut they became greasy in case of moisture or snow and can conduct to accidents.The research proposal of this project is to realize floor coatings with higy abrasionresistence, slipproof and fire proof characteristics for public institutions and for other placeswith high pedestrian traffic values based on polymer nanocomposites. This coatings are madeat the working place and in short time can be used. The coatings can be used for reparing thedamages of the old floors, to do new floors and to increase the slipproof characteristics of themetal and concrete mosaic floors and fire proof of wood floors.The polymeric material selected for the coatings was the polyuretane. Thepolyurethane is a versatile material, which can be easy obtained in situ, and can achieve alarge place of physical properties. With an adequate silicate can formed interestingnanocomposites with new properties. The research team experience in polyurethanes wasanother motivation for polyurethanes choosing.The nanocomposite polyurethane matrix / silicate was obtained starting from amodified phyllosilicate in wich a polyurethane macrochin was built as a result of a poliaditionisocianate / hidroxil process.