Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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The Determination of Diffusion and Partition Coefficients of PUF

폴리우레탄 폼의 휘발성 유기화합물 확산 및 분배계수 산정

  • Park, Jin-Soo (Climate and Air Quality Research Department National Institute of Environmental Research) ;
  • Little, John C. (Department of Civil and Environmental Engineering Virginia Tech) ;
  • Kim, Shin-Do (Department of Environmental Engineering University of Seoul) ;
  • Lee, Hee-Kwan (Department of Civil and Environmental Engineering Incheon University) ;
  • Kong, Boo-Ju (Climate and Air Quality Research Department National Institute of Environmental Research)
  • 박진수 (국립환경과학원 기후대기연구부) ;
  • ;
  • 김신도 (서울시립대학교 환경공학부) ;
  • 이희관 (인천대학교 토목환경공학과) ;
  • 공부주 (국립환경과학원 기후대기연구부)
  • Published : 2010.02.28
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Abstract

The diffusion and partition coefficients of polyurethane foam (PUF) are estimated using a microbalance experiment and small chamber test. The microbalance is used to measure sorption/desorption kinetics and equilibrium data. When the diffusion condition is controlled in the chamber of the sample, interactions between volatile organic compounds (VOCs) and PUF can lead to the estimation of a relatively homogenous rate of mass transfer in the interiors and surfaces of PUF. The estimates of the material/air partition coefficient (K) and the material-phase diffusion coefficient (D) are shown to be independent of the concentrations of VOCs. This approach, if applied to a diffusion-controlled or physically-based model, can facilitate more precise prediction of their source/sink behavior. Although further research and more rigorous validation is needed, an emission model applied with the diffusion and partition coefficients from this research holds promise for the improvement of reliability in predicting the behavior of VOCs emitted from porous building materials by D and K.

Keywords

References

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