MOISTURE TRANSPORT THROUGH NON-POROUS HYDROPHILIC MEMBRANES USED IN PROTECTIVE CLOTHING

Abstract

The three-step upright cup method was employed to determine the total moisture transfer resistance and the two air layer resistances on both sides of the membrane. The effective moisture diffusion coefficient in air layer between the membrane and water surface was determined by the regressive method, and the effective moisture diffusion coefficient of membrane was calculated. Experiments were conducted on a non-porous hydrophilic thermoplastic polyester elastomer membrane. The moisture transfer process through the membrane was modeled by using the solution-diffusion model. The effects of membrane microstructure on membrane permeation were analyzed based on the solution-diffusion model and experimental data. The results show that the effective diffusion coefficient can be used to evaluate the mass transfer process through the non-porous hydrophilic thermoplastic polyester elastomer membrane.

Keywords

Dates

  • Submission Date2013-01-18
  • Revision Date2013-04-26
  • Acceptance Date2013-05-14
  • Online Date2013-12-28

DOI Reference

10.2298/TSCI1305293Z

References

  1. Stroeks, A., The Moisture Vapour Transmission Rate of Block Co-poly(ether-ester) Based Breathable Films. 2. Influence of the Thickness of the Air Layer Adjacent to the Film, Polymer, 42 (2001), 25, pp. 9903-9908
  2. Yang, W., A New Method for Fiber Orientation Distribution in a Planar Coneracting Turbulent Flow, Thermal Science, 16 (2012), 5, pp. 1367-1371
  3. Mayumi, J. J., et al., Material Design and Manufacture of a New Thermoplastic Polyester Elastomer, Polymer, 40 (2008), 1, pp. 1-9
  4. Huang, J.-H., Qian, X. M., Comparison of Test Methods for Measuring Water Vapor Permeability of Fabrics, Textile Research Journal, 78 (2008), 4, pp. 342-352
  5. Fan, J., He, J.-H., Biomimic Design of Multi-Scale Fabric with Efficient Heat Transfer Property, Thermal Science, 16 (2012), 5, pp. 1349-1352
  6. Min, J. C., Hu, T., Moisture Permeation through Porous Membranes, Journal of Membrane Science, 379 (2011), 6, pp. 496-503
  7. Woo, S. S., et al., Heat and Moisture Transfer Through Nonwoven Fabrics, Part II: Moisture Diffusivity, Textile Research Journal, 63 (1993), 4, pp. 190-197
  8. Stroeks, A., Dijkstra, K., Modelling the Moisture Vapour Transmission Rate through Segmented Block Co-poly(ether-ester) Based Breathable Films, Polymer, 42 (2001), 1. pp. 117-127
  9. Zhang, L.-Z., Investigation of Moisture Transfer Effectiveness through a Hydrophilic Polymer Membrane with a Field and Laboratory Emission Cell, International Journal of Heat and Mass Transfer, 49 (2006), 5-6, pp. 1176-1184
  10. Dolmaire, N., et al., Water Transport Properties of Thermoplastic Polyurethane Films, Journal of Polymer Science, 42 (2004), 3, pp. 473-492
Volume 17, Issue 5, Pages1293 -1298