Abstract
The rheological properties of mixed pulp fiber suspensions were measured with a parallel-plates type rheometer. The effects of shear rate and mixture ratios of softwood and hardwood kraft pulp fibers on flocculation of the fibers were evaluated using a high speed CCD camera. The flow curves of the suspensions showed individual three zones derived from different flocculation conditions of the systems. The effect of the long fibers on the flocculation is more remarkable than the short ones. The two-dimensional fast Fourier transform technique was used to analyze the fiber orientation in polar coordinate. The fiber orientation in flow direction is rather irregular, even under high shear rate conditions. The present method is useful for evaluating the flow behavior of the fiber suspensions and the fiber orientation.
| Original language | English |
|---|---|
| Pages (from-to) | 471-478 |
| Number of pages | 8 |
| Journal | Journal of Fiber Science and Technology |
| Volume | 59 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Jan 1 2003 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Chemical Engineering (miscellaneous)
- Materials Science (miscellaneous)
- Polymers and Plastics
- Industrial and Manufacturing Engineering
Cite this
Fiber orientation and flow properties of pulp fiber suspensions under shear flow conditions. / Chen, Bo; Tatsumi, Daisuke; Matsumoto, Takayoshi.
In: Journal of Fiber Science and Technology, Vol. 59, No. 12, 01.01.2003, p. 471-478.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fiber orientation and flow properties of pulp fiber suspensions under shear flow conditions
AU - Chen, Bo
AU - Tatsumi, Daisuke
AU - Matsumoto, Takayoshi
PY - 2003/1/1
Y1 - 2003/1/1
N2 - The rheological properties of mixed pulp fiber suspensions were measured with a parallel-plates type rheometer. The effects of shear rate and mixture ratios of softwood and hardwood kraft pulp fibers on flocculation of the fibers were evaluated using a high speed CCD camera. The flow curves of the suspensions showed individual three zones derived from different flocculation conditions of the systems. The effect of the long fibers on the flocculation is more remarkable than the short ones. The two-dimensional fast Fourier transform technique was used to analyze the fiber orientation in polar coordinate. The fiber orientation in flow direction is rather irregular, even under high shear rate conditions. The present method is useful for evaluating the flow behavior of the fiber suspensions and the fiber orientation.
AB - The rheological properties of mixed pulp fiber suspensions were measured with a parallel-plates type rheometer. The effects of shear rate and mixture ratios of softwood and hardwood kraft pulp fibers on flocculation of the fibers were evaluated using a high speed CCD camera. The flow curves of the suspensions showed individual three zones derived from different flocculation conditions of the systems. The effect of the long fibers on the flocculation is more remarkable than the short ones. The two-dimensional fast Fourier transform technique was used to analyze the fiber orientation in polar coordinate. The fiber orientation in flow direction is rather irregular, even under high shear rate conditions. The present method is useful for evaluating the flow behavior of the fiber suspensions and the fiber orientation.
UR - http://www.scopus.com/inward/record.url?scp=1142268865&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=1142268865&partnerID=8YFLogxK
U2 - 10.2115/fiber.59.471
DO - 10.2115/fiber.59.471
M3 - Article
AN - SCOPUS:1142268865
VL - 59
SP - 471
EP - 478
JO - Sen'i Gakkaishi
JF - Sen'i Gakkaishi
SN - 0037-9875
IS - 12
ER -