Titre du document / Document title

Effect of xylene exposure on the performance of electret filter media

Auteur(s) / Author(s)

JASPER W. ⁽¹⁾ ; HINESTROZA J. ⁽¹⁾ ; MOHAN A. ⁽¹⁾ ; KIM J. ⁽¹⁾ ; SHIELS B. ⁽¹⁾ ; GUNAY M. ⁽¹⁾ ; THOMPSON D. ⁽¹⁾ ; BARKER R. ⁽¹⁾ ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

⁽¹⁾ College of Textiles, North Carolina State University, Box 8301, Raleigh, NC 27695, ETATS-UNIS

Résumé / Abstract

Performance degradation of electret filter media when exposed to xylene was investigated using a custom-made exposure apparatus. Three types of electret filter media were exposed to xylene in liquid and gas phases. Experimental data indicated that the penetration percentage of di-octyl-phtalate (DOP) aerosols through electret filter media was not influenced by exposure to xylene vapors for periods up to 8 h. The filtration performance for all three types of electret filter media decreased over 30% when the samples were exposed to liquid xylene. Pressure drop changes of the filter media prior and after exposure to liquid xylene were statistically negligible. Neither morphological changes nor degradation of the polymer fibers were observed after exposure of the filter media samples to liquid xylene. Thermodynamic simulations were performed to determine the molar flux of liquid and gas phases through the filter media specimens. Experimental results obtained via capillary gas chromatography were within 4% of the predicted values. The decrease in performance was attributed to changes in the density and spatial distribution of the electret charges on the surface of the polymer fibers.

Revue / Journal Title

Journal of aerosol science   ISSN 0021-8502   CODEN JALSB7 

Source / Source

2006, vol. 37, n^o7, pp. 903-911 [9 page(s) (article)] (9 ref.)

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Oxford, ROYAUME-UNI  (1970) (Revue)

Mots-clés anglais / English Keywords

Benzenic compound ; Hydrocarbon ; Liquid phase ; Gas phase ; Liquid ; Filter ; Electret ; Performance ; Exposure ; Xylene ;

Mots-clés français / French Keywords

Composé benzénique ; Hydrocarbure ; Phase liquide ; Phase gazeuse ; Liquide ; Filtre ; Electret ; Performance ; Exposition ; Xylène ;

Mots-clés espagnols / Spanish Keywords

Compuesto bencénico ; Hidrocarburo ; Fase líquida ; Fase gaseosa ; Líquido ; Filtro ; Electret ; Rendimiento ; Exposición ; Xileno ;

Mots-clés d'auteur / Author Keywords

Electret filter ; Xylene ; Liquid exposure ;

Localisation / Location

INIST-CNRS, Cote INIST : 4439, 35400014239033.0070