Thin polymer films for the filter of an air cleaner fabricated by mass-controlled layer-by-layer adsorption of polyelectrolytes

Extremely high performance of tobacco smoke filter for air cleaner was established by forming the polymer thin films on the surface of fiberglass by layer-by-layer sequential adsorption of polyelectrolytes. The mass controlled automatic dipping machine was used for the deposition process of the polyelectrolytes and it was easy to optimize the adsorption characteristics of the filter to smoke. The newly developed filter showed remarkably high performance because it adsorbed large amount of smoke without supplying electric power. It was also found that the polyelectrolytes filters can be cleaned just by rinsing in a hot water at 90 °C. Consequently, a remarkable high performance of the polymer filter for air cleaner can be produced by the mass-controlled layer-by-layer adsorption method of polyelectrolytes.