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Synchrotron X-ray microtomography and 3D image analysis of medium density fiberboard (MDF)
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Published/Copyright:
June 3, 2009
Abstract
The three-dimensional microstructure of a series of laboratory medium density fiberboard (MDF) samples with densities varying from 300 kg m-3 to 1000 kg m-3 was investigated by synchrotron microtomography (SRμCT). After reconstruction and filtering of the volume data, an adapted image analysis was used to extract the structural information about the fiber network at different densities. Information was established on the distribution of intra- and inter-fiber voids, cell-wall material, individual fibers, and fiber bundles. Calculations were performed concerning the surface area towards the ambient void spaces, the number of contacts, and the contact area between selected fibers. Furthermore, the resin distribution on the fibers was investigated and characterized by SRμCT and environmental scanning electron microscopy with stained adhesives. The results presented here allow a new approach to examine the complete wood fiber network of MDFs by automatic image analysis routines.
Keywords: adhesive distribution; fiber network; image analysis; medium density fiberboard (MDF); microtomography; three-dimensional structure
Received: 2009-1-8
Accepted: 2009-4-8
Published Online: 2009-06-03
Published Online: 2009-06-03
Published in Print: 2009-09-01
©2009 by Walter de Gruyter Berlin New York
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Keywords for this article
adhesive distribution;
fiber network;
image analysis;
medium density fiberboard (MDF);
microtomography;
three-dimensional structure
Articles in the same Issue
- Original Papers
- Orientation of the wood polymers in the cell wall of spruce wood fibres
- MEA/water/AQ-pulping of wheat straw
- Catalytic hydrogenolysis of ethanol organosolv lignin
- The influence of mannanase and endoglucanase treatment on the fibre stability of spruce CTMP
- TEMPO-mediated oxidation of softwood thermomechanical pulp
- Ozone pretreatment of lignocellulosic materials for ethanol production: Improvement of enzymatic susceptibility of softwood
- A preliminary study of green production of fiberboard bonded with tannin and laccase in a wet process
- Extractives in bark of different conifer species growing in Pakistan
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