[Application of mathematical models for determination of volatile organic compounds emission from flooring adhesives]

An environmental chamber with controlled temperature, relative humidity, and air exchange was used to evaluate emissions of volatile organic compounds (VOC) from three flooring solvent-based adhesives. Gas chromatograph equipped with flame ionization detector was employed to measure VOC emission. The temporal change in concentration of VOC emitted from each adhesive was observed and double-exponential model was compared with a first-order emission decay model in their ability to describe measured emission factors of adhesives. It was demonstrated that the double exponential model better describes emission characteristic for experimental data than first-order model does.