Rheological characterisation of shear thickening TiO2 suspensions in low molecular polymer solution

Zupančič, Andreja; Lapasin, Romano; sumer, Miha

doi:10.1016/s0300-9440(96)00670-4

Cited by 32 publications

(14 citation statements)

References 27 publications

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“…8 It occurs at a critical shear rate ␥ . c , and it is usually attributed to a transition from a state with the solid particles arranged in ordered 2-dimensional layers to a 3-dimensional arrangement with the particles flowing randomly.…”

Section: Resultsmentioning

confidence: 99%

Key role of milling in the optimization of TiO₂ nanoinks

et al. 2006

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Nanostructured films of TiO 2 are becoming more and more attractive as a consequence of their improved sensing properties. Screen printing represents an important low-cost alternative for the production of high-performance devices for the automotive industry. However, to obtain films with superior properties, the composition and each step of the ink production must be carefully controlled. Milling strongly influences the rheological properties of the ink and, as a consequence, the quality of the deposited film. The as-prepared ink was homogenized in a four steps-process with a three-roll mill, and the rheological properties at each intermediate stage were measured. The results showed the dramatic effect of the milling on the flow properties of the nanoink and suggested the importance of a careful control of this step. The rheological behavior of the inks was explained using the basic idea of the transient network theory (TNT) for physically cross-linked networks of polymer solutions. Only an optimized cycle of milling can assure the necessary reproducibility of the ink properties as well as their time stability.

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Section: Resultsmentioning

confidence: 99%

Key role of milling in the optimization of TiO₂ nanoinks

et al. 2006

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“…The form of these clumps is temporary across the fl ow which in turn causes an increase in viscosity followed by a sharp decrease with increasing shear rate for all the samples. Previous studies have reported that shear thickening bump in the viscosity vs. shear rate curve observed at high shear rate (Xu and Steven, 2003;Zupancic et al, 1997). Figure 4 shows the stress vs. shear rate to obtain the yield stress of coating formulations without inhibitor and with different inhibitors.…”

Section: Rheological Propertiesmentioning

confidence: 95%

Effect of Yellowing Inhibitors on the Brightness Stability, Rheological Properties and Water Retention of Paper Coating

El-Sadi

Esmail

2008

Can. J. Chem. Eng.

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Paper coating colours exhibit complex interfacial and rheological properties resulting from the interaction between paper coating colors and yellowing inhibitors, which are added to coating colors to increase the stability of paper brightness. The zeta potential of ground calcium carbonate and kaolinite particles was measured. It was found that the zeta potential increased with the percentage of added inhibitor. Moreover, the measurements revealed the influence of adsorption of inhibitors on ground calcium carbonate and kaolinite. Rheological properties of inhibitors were measured and their effect on the rheological properties of coating formulations was investigated. The elastic character of the colour containing inhibitors was more pronounced than the viscous character. The elastic modulus and viscosity were strongly influenced by the inhibitor used. Measurements of water retention of coating suspensions showed that the inhibitor (radical scavenger) reduced the water retention of coating colors.

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“…There are many publications focusing on rheology of polymer concentrated suspensions filled with metal oxide powders of various particle diameters. The rheological properties depend on the solid phase concentration [1][2][3], particle size [2,[4][5][6], concentration and molecular weight of polymer [1][2][3][5][6][7] and also interaction between particles, solvent and polymer molecules [2,5,9]. Because of rapid development of microelectronics, the suspensions based on nanopowders represent the most promising objects for rheological investigations.…”

Section: Introductionmentioning

confidence: 99%

Rheology of plasticized polymer solutions

Umerova¹,

Dulina²,

Ragulya³

2015

Epitoanyag - JSBCM

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this paper is about rheological properties of plasticized polymer solutions with different concentration of plasticizer. it was established that the investigated polymer solutions were threedimensionally structured systems which were shear thickened at low shear rates and maintained the thixotropic structural state under high shear rates. However, addition of different amount of plasticizer had an ambiguous influence on rheology of solutions and led to formation of transient polymer network with a complicated character of structuration because of the features of interaction in the polymer -plasticizer system. it was found that the plasticization results in changing of ec molecules conformation and simultaneous breaking of the polymer continuity due to DBP adsorption on ec macromolecule. Herewith, the formation of smaller crystallites took place. Besides, the investigated solutions showed causal link between structural states.

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Rheological characterisation of shear thickening TiO2 suspensions in low molecular polymer solution

Cited by 32 publications

References 27 publications

Key role of milling in the optimization of TiO₂ nanoinks

Key role of milling in the optimization of TiO₂ nanoinks

Effect of Yellowing Inhibitors on the Brightness Stability, Rheological Properties and Water Retention of Paper Coating

Rheology of plasticized polymer solutions

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Rheological characterisation of shear thickening TiO2 suspensions in low molecular polymer solution

Cited by 32 publications

References 27 publications

Key role of milling in the optimization of TiO2 nanoinks

Key role of milling in the optimization of TiO2 nanoinks

Effect of Yellowing Inhibitors on the Brightness Stability, Rheological Properties and Water Retention of Paper Coating

Rheology of plasticized polymer solutions

Contact Info

Product

Resources

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Key role of milling in the optimization of TiO₂ nanoinks

Key role of milling in the optimization of TiO₂ nanoinks