Changes of cellulose fiber wall structure during drying investigated using NMR self-diffusion and relaxation experiments
(2002) In Cellulose 9(2). p.139-147- Abstract
- The self-diffusion of water sorbed in cellulose fibers was investigated by means of NMR during slow drying in order to follow changes in the cellulose porous structure. In pulp fibers pores with at least one dimension on the mum scale were observed at high amounts of sorbed water and nm-scale pores at low amounts. Beating affected the mum-scale pores. Regenerated cellulose fibers had nm-scale pores up to high amounts of water. Bulk water was observed as a second component with long T-2 in a CPMG experiment. The sequence of water removal for kraft pulp fibers is: (1) bulk water, (2) water in mum-scale pores and (3) water in nm-scale pores.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/329262
- author
- Topgaard, Daniel LU and Söderman, Olle LU
- organization
- publishing date
- 2002
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- water, self-diffusion, NMR, porous material
- in
- Cellulose
- volume
- 9
- issue
- 2
- pages
- 139 - 147
- publisher
- Springer
- external identifiers
-
- wos:000177946900005
- scopus:0036623755
- ISSN
- 0969-0239
- DOI
- 10.1023/A:1020158524621
- language
- English
- LU publication?
- yes
- id
- 7c1aeac8-d792-4172-92ae-ac4a621edab8 (old id 329262)
- date added to LUP
- 2016-04-01 15:28:49
- date last changed
- 2022-01-28 05:32:39
@article{7c1aeac8-d792-4172-92ae-ac4a621edab8, abstract = {{The self-diffusion of water sorbed in cellulose fibers was investigated by means of NMR during slow drying in order to follow changes in the cellulose porous structure. In pulp fibers pores with at least one dimension on the mum scale were observed at high amounts of sorbed water and nm-scale pores at low amounts. Beating affected the mum-scale pores. Regenerated cellulose fibers had nm-scale pores up to high amounts of water. Bulk water was observed as a second component with long T-2 in a CPMG experiment. The sequence of water removal for kraft pulp fibers is: (1) bulk water, (2) water in mum-scale pores and (3) water in nm-scale pores.}}, author = {{Topgaard, Daniel and Söderman, Olle}}, issn = {{0969-0239}}, keywords = {{water; self-diffusion; NMR; porous material}}, language = {{eng}}, number = {{2}}, pages = {{139--147}}, publisher = {{Springer}}, series = {{Cellulose}}, title = {{Changes of cellulose fiber wall structure during drying investigated using NMR self-diffusion and relaxation experiments}}, url = {{http://dx.doi.org/10.1023/A:1020158524621}}, doi = {{10.1023/A:1020158524621}}, volume = {{9}}, year = {{2002}}, }