STUDY ON PERMEABILITY OF WATER VAPOR AND ODOR SUBSTANCES THROUGH SOME KINDS OF THE PERMEABLE FILM

Abstract

This paper shows a study on permeability of water vapor and odor substances through six kinds of permeable film including viscos coated paper. The water vapor permeability can be indicated as proportional to the water vapor pressure difference. In addition, gas permeable barrier characteristics to odor substances such as ammonia and toluene were examined by using calibrated electrical gas sensors. It was concluded that the viscos coated paper has better water vapor and gas barrier performance compared to the others.