TECHNICAL NOTE: WATER VAPOR TRANSMISSION RATE AND PERMEANCE OF CELLULOSE NANOCRYSTALS/POLYDIMETHYLSILOXANE HYBRID MEMBRANES MEASURED BY DYNAMIC VAPOR SORPTION

Authors

  • Ling Li School of Forest Resources University of Maine
  • Nasim Alikhani School of Forest Resources University of Maine
  • Jacob Snow School of Forest Resources University of Maine
  • Jinwu Wang Research Forest Products Technologist USDA Forest Service, Forest Products Laboratory

Keywords:

CNC/PDMS membrane, Dynamic vapor sorption analyzer, Permeance, Water vapor transmission rate (WVTR).

Abstract

This article describes a fast and reliable method of screening membrane materials designed by measuring moisture vapor transmission rate (WVTR) and permeance of membrane materials using a Payne-style diffusion cell (dry cup) placed in a Dynamic Vapor Sorption DVS) instrument. The materials were cellulose nanocrystals (CNC)/polydimethylsiloxane (PDMS) hybrid membranes. A casting method was used to fabricate three types of membrane samples. The WVTR and permeance of the samples were measured at two relative humidity (RH) levels if 60% and 80% at 25OC. The results revealed that the WVTR and permeance of PDMS membrane samples were increased by 34.33% to 39.69% after adding 1 wt% of CNC in the PDMS matrix. WVTR of all samples increased as RH increased from 60% to 80%, but the permeance decreased with increasing RH. The results of all three types of samples showed good consistency in terms of data discrepancy and the trends of WVTR and permeance with RH. Due to the small sample size, the tests could be completed in a few hours at elevates RHs in comparison with the commonly used Mason jar method according to American Society for Testing and Materials (ASTM) E96/E96M-16. Therefore, the Payne cell method in DVS can provide a fast screening of membrane materials.

Author Biographies

Ling Li, School of Forest Resources University of Maine

Assistant professor of sustainable bioenergy systems

School of Forest Resources

Jinwu Wang, Research Forest Products Technologist USDA Forest Service, Forest Products Laboratory

Research Forest Products Technologist

USDA Forest Service, Forest Products Laboratory

References

Alikhani, N., Li, L., Wang, J., Dewar, D., Science, M. T.-W. and F., & 2020, U. (2020). Exploration of membrane-based dehumidification system to improve the energy efficiency of kiln drying processes: Part I Factors that affect moisture removal efficiency. Wfs.Swst.Org. http://wfs.swst.org/index.php/wfs/article/view/2960

ASTM E96/E96M‐16, A. (2016). Standard test methods for water vapor transmission of materials. Annual Book of ASTM Standards; American Society for Testing and Materials: West Conshohocken, PA, USA, 719–725.

Elustondo, D. M., & Oliveira, L. (2009). Model to assess energy consumption in industrial lumber kilns. Maderas: Ciencia y Tecnologia, 11(1), 33–46. https://doi.org/10.4067/S0718-221X2009000100003

Kneifel, K., Nowak, S., Albrecht, W., Hilke, R., Just, R., & Peinemann, K. V. (2006). Hollow fiber membrane contactor for air humidity control: Modules and membranes. Journal of Membrane Science, 276(1–2), 241–251. https://doi.org/10.1016/j.memsci.2005.09.052

Liang, C. Z., & Chung, T. S. (2018). Robust thin film composite PDMS/PAN hollow fiber membranes for water vapor removal from humid air and gases. Separation and Purification Technology, 202, 345–356. https://doi.org/10.1016/j.seppur.2018.03.005

Yang, B., Yuan, W., Gao, F., & Guo, B. (2015). A review of membrane-based air dehumidification. Indoor and Built Environment, 24(1), 11–26. https://doi.org/10.1177/1420326X13500294

Zhao, B., Peng, N., Liang, C., Yong, W., & Chung, T.-S. (2015). Hollow Fiber Membrane Dehumidification Device for Air Conditioning System. Membranes, 5(4), 722–738. https://doi.org/10.3390/membranes5040722

Downloads

Published

2022-11-29 — Updated on 2022-11-29

Versions

Issue

Vol. 53 No. 4 (2021): Wood and Fiber Science

Section

Technical Notes

License

The copyright of an article published in Wood and Fiber Science is transferred to the Society of Wood Science and Technology (for U. S. Government employees: to the extent transferable), effective if and when the article is accepted for publication. This transfer grants the Society of Wood Science and Technology permission to republish all or any part of the article in any form, e.g., reprints for sale, microfiche, proceedings, etc. However, the authors reserve the following as set forth in the Copyright Law:

1. All proprietary rights other than copyright, such as patent rights.

2. The right to grant or refuse permission to third parties to republish all or part of the article or translations thereof. In the case of whole articles, such third parties must obtain Society of Wood Science and Technology written permission as well. However, the Society may grant rights with respect to Journal issues as a whole.

3. The right to use all or part of this article in future works of their own, such as lectures, press releases, reviews, text books, or reprint books.