Skip to Main Content
Characterizing the surface roughness of thermomechanical pulp fibers with atomic force microscopyAuthor(s): Rebecca Snell; Leslie H. Groom; Timothy G. Rials
Source: Holzforschung 55(5):511-520
Publication Series: Miscellaneous Publication
PDF: View PDF (2.9 MB)
DescriptionLoblolly pine, separated into mature and juvenile portions, was refined at various pressures (4, 8 and 12 bar). Fiber surfaces were investigated using a Scanning Electron Microscope (SEM) and an Atomic Force Microscope (AFM). Refiner pressure had a significant effect on the fiber surefaces. SEM images showed an apparent increase in surface roughness with increased refiner pressure. This was shown quantitatively with data from the AFM that was analyzed using 5, 2.5 and 1.2 μm scan sizes. A scan size of 2.5 μm was found to be the most informative in terms of quantifying the effect of the different treatments on the two fiber types. The calulated surface roughness was greatest at 8 bar for both wood types. Juvenile fibers in general had higher surface roughness values than mature fibers. The results suggest that refining pressure may influence the failure mechanism of juvenile and mature wood differently.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationSnell, Rebecca; Groom, Leslie H.; Rials, Timothy G. 2001. Characterizing the surface roughness of thermomechanical pulp fibers with atomic force microscopy. Holzforschung 55(5):511-520
KeywordsAtomic force microscopy (AFM), scanning electron microscopy (SEM), thermomechanical pulp (TMP), fiber surface morphology, surface roughness, refiner pressure, fractals
- Effect of thermo-mechanical refining pressure on the properties of wood fibers as measured by nanoindentation and atomic force microscopy
- Effect of refining pressure and resin viscosity and resin flow, distribution, and penetration of MDF fibers
- Microscopic observations during longitudinal compression loading of single pulp fibers
XML: View XML