Institute of Solid State Physics
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SS22 WS22 SS23 WS23 SS24 WS24 Guidelines for Master Students
Monitoring structural changes in paper upon solvent uptake with Xray tomography The incorporation of water and organic volatiles, such as DMSO, by paper is a complex interplay between capillary transport and structural changes within cellulose-lignin-based fibers. Though paper is a convenience product used every day, little is known how swelling affects the pore space between fibers and the subsequent transport within it. We used X-ray microcomputed tomography (µCT) to monitor the spread of DMSO and water and the resulting microstructural changes that occur over extended periods of time. Interestingly, even after mass uptake reaches a plateau, structural changes continue to be observable in both fiber space and the pore space between fibers. |
