화학공학소재연구정보센터
Macromolecular Research, Vol.20, No.1, 4-9, January, 2012
Polypropylene Melt Blown Nonwovens for Plate-Type Enthalpy Exchanger
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An enthalpy exchanger made of melt blown nonwoven fabrics was prepared using various chemical and physical treatments, and its characteristics were compared with those of a paper exchanger. Water vapor transmission rate and air permeability, the major properties that determine enthalpy exchanger index performance, were investigated. Various measurements were conducted as a function of calendering temperature and speed, moisture content absorbance, and water soluble polymer concentration. The optimum conditions for the enthalpy exchanger made of melt blown nonwoven fabrics included 95℃ calendering temperature and 5% poly(vinyl alcohol) concentration. A commercial melt blown type heat exchanger could potentially replace the paper type.