Effect of Fiber Concentration and Axial Ratio on the Rheological Properties of Cellulose Fiber Suspensions
By Daisuke Tatsumi, S. Ishioka, Takayoshi Matsumoto. 2002
144 citations recorded by the source corpus.
The steady flow and the dynamic viscoelastic properties of cellulose fiber suspensions were investigated as functions of the suspension concentration and the fiber shape using a parallel-plate type rheometer. Various concentrations of the suspensions were made from various types of cellulose fibers, i.e., microcrystalline cellulose, bacterial cellulose, and fibrillated cellulose fibers. All the suspensions showed non-Newtonian flow even at very low concentrations. The flow property of each suspension showed a plateau of the shear stress, i.e., the yield stress, over a critical concentration. The critical concentration obtained from the experiment agreed well with the value theoretically calculated from the axial ratio of the fibers. The dynamic moduli of the suspensions were almost independent of the angular frequency, and they increased with the fiber concentration. The dynamic storage moduli increased in proportion to the 9/4th power of the fiber concentration. This power of 9/4 is coincident with that theoretically required for polymer gels. This fact suggests that the rigidity of the suspensions has appeared by the same mechanism from the order of cellulose fibers to microcrystalline cellulose fibers, and even to polymer molecules.
Subfields: Biomaterials, Food Science, Mechanics of Materials
View Paper: https://www.semanticscholar.org/paper/6a603e3c83e45d0606bd52f32abffe4a061eb0f6
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In Biomaterials
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In Mechanics of Materials
Citations in the corpus
- Rheological characterization of microfibrillated cellulose suspensions after freezing (2010, methodology): “In addition, Tatsumi et al. (2002) showed that in the relation G0 = kCa, the exponent value remains constant over a wide range of fiber length and diameters, in the contrary of the k factor, which changes according to the types of fibers.”
- Effect of microfibrillated cellulose and fines on the drainage of kraft pulp suspension and paper strength (2010, background): “The chemistry may also vary significantly depending on the source of raw material and the methods of production (Herrick et al. 1983; Turbak et al. 1983; Heux et al. 1999; Tatsumi et al. 2002; Berglund 2005; Nagakaito and Yano 2005; Andresen et al. 2006 ;P aa ¨kko ¨ et al. 2007; Ahola et al. 2008b”
- Carboxymethylated nanofibrillated cellulose: rheological studies (2014, unknown): “The power-law relationship (g * cb) between the viscosity and concentration (c), and the value of 2 obtained for the exponent are in agreement with the findings of Tatsumi et al. (2002), who in their report actually plotted the shear stress (= g 9 _c) versus the NFC concentration.”
- Processing of wood-based microfibrillated cellulose and nanofibrillated cellulose, and applications relating to papermaking: a review (2016, background): “Tatsumi et al. (2002) reported that cellulose suspensions exhibit yield stress and pseudoequilibrium moduli at very low concentrations.”
- Cellulose nanofibrils—adsorption with poly(amideamine) epichlorohydrin studied by QCM-D and application as a paper strength additive (2008, methodology): “Several methods to prepare cellulose microfibrils have been introduced, all of them leading to a different type of fibril material, depending on the cellulose raw material used, the pre-treatment of the raw material and the disintegration process itself (Turbak et al. 1983; Herrick et al. 1983 ;P a¨”