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Relevant bibliographies by topics / Viscometric behaviour

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Academic literature on the topic 'Viscometric behaviour'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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Journal articles on the topic "Viscometric behaviour"

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Gargallo, L., D. Radic, and L. H. Tagle. "Polymer conformation and viscometric behaviour." Polymer Bulletin 17, no. 1 (1987): 15–22. http://dx.doi.org/10.1007/bf00955878.

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K., G. Ojha, C. Heda L., Pareek C., and R. Mosalpuri S. "Viscometric investigations and molecular interactions of triphenodioxazine dyes in mixed organic solvents." Journal of Indian Chemical Society Vol. 86, May 2009 (2009): 458–64. https://doi.org/10.5281/zenodo.5810095.

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Department of Pure and Applied Chemistry, M. D. S. University, Ajmer-305 009, Rajasthan, India Department of Chemistry, S. D. Govt. ·college, Beawar-305 901, Rajasthan, India <em>E-mail</em> : lal57heda@yahoo.com, msonraj@yahoo.com, pareekcd@yahoo.com <em>Manuscript received 5 March 2008, revised 31 December 2008, accepted 1 January 2009</em> Colloid chemical behaviour of 6,13-dichloro-3,10-dimethyl trlphenodioxazine (TPDO-1) aod 6,13-dibromo-3,10- dimethyl triphenodioxazine (TPDO-II) in non-aqueous solvent mixture benzene-methanol or varying composition has been Investigated by viscometrlc measurements at 303 ± 0.1 K. The viscosity or the system Increases with the increase in triphenodioxazine concentration. The Trend Change Point (TCP) values have been determined by intersection or two straight lines which are found to be dependent on the composition of solvent mixtures. The study confirms that the nature of triphenodloxazine agglomerate formed below and above 50., benzene concentration is quite different. The viscometric data have been analysed in terms or Einstein, Vand, Moulik and Jones-Dole equations. These well known equations have been successfully applied to explain the results of vicosity measurements and the viscometric parameters show that the behaviour of triphenodloxazine dyes changes in the proximity or 50'10 benzene concentration.

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Yazdani-Pedram, M., L. Gargallo, and D. Radić. "Polymer conformation and viscometric behaviour—5." European Polymer Journal 21, no. 8 (1985): 707–10. http://dx.doi.org/10.1016/0014-3057(85)90110-7.

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Lewandowska, Katarzyna, and Marta Szulc. "Characterisation of Hyaluronic Acid Blends Modified by Poly(N-Vinylpyrrolidone)." Molecules 26, no. 17 (2021): 5233. http://dx.doi.org/10.3390/molecules26175233.

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The viscosity behaviour and physical properties of blends containing hyaluronic acid (HA) and poly(N-vinylpyrrolidone) (PVP) were studied by the viscometric technique, steady shear tests, tensile tests and infrared spectroscopy. Viscometric and rheological measurements were carried out using blends of HA/PVP with different HA weight fractions (0, 0.2, 0.5, 0.8 and 1). The polymer films and HA/PVP blend films were prepared using the solution casting method. The study of HA blends by viscometry showed that HA/PVP was miscible with the exception of the blend with high HA content. HA and its blends showed a shear-thinning flow behaviour. The non-Newtonian indices (n) of HA/PVP blends were calculated by the Ostwald–de Waele equation, indicating a shear-thinning effect in which pseudoplasticity increased with increasing HA contents. Mechanical properties, such as tensile strength and elongation at the break, were higher for HA/PVP films with wHA = 0.5 compared to those with higher HA contents. The elongation at the break of HA/PVP blend films displayed a pronounced increase compared to HA films. Moreover, infrared analysis confirmed the existence of interactions between HA and PVP. The blending of HA with PVP generated films with elasticity and better properties than homopolymer films.

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H. Muhammad, F., R. H.Y. Subban, and Tan Winie. "Miscibility Study of Hexanoyl Chitosan/ Poly(Vinyl Chloride) Blends by Dilute Solution Viscometry and FTIR." International Journal of Engineering & Technology 7, no. 4.18 (2018): 400–403. http://dx.doi.org/10.14419/ijet.v7i4.18.21977.

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Miscibility behaviour of hexanoyl chitosan and poly(vinyl chloride) (PVC) blends in different ratios was measured using dilute solution viscometry (DSV) and FTIR spectroscopy. The difference between the experimental and theoretical values of intrinsic viscosity, âˆ†[Î·]m and the thermodynamic parameter, Î± were used to investigate the miscibility behaviour of the blends. FTIR studies suggested that there is no interaction between hexanoyl chitosan and PVC. Â The values of intrinsic viscosity, âˆ†[Î·]m > 0 and Î± < 0Â indicates repulsive interaction and immiscibility of polymer blend. FTIR results for hexanoyl chitosan showed no shift in frequency and no alteration in band shape as well as band inyensity with addition of PVC to the system. Both viscometric and FTIR results showed that hexanoyl chitosan and PVC are immiscible for all compositions under investigation.Â Â

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Dragan, S., and L. Ghimici. "Viscometric behaviour of some hydrophobically modified cationic polyelectrolytes." Polymer 42, no. 7 (2001): 2887–91. http://dx.doi.org/10.1016/s0032-3861(00)00690-x.

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Katime, Issa A., Jos� M. Teij�n, and Dolores Blanco. "Viscometric behaviour of the PMMA/acetonitrile/L-menthol system." Polymer Bulletin 19, no. 5 (1988): 515–20. http://dx.doi.org/10.1007/bf00263924.

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K., N. MEHROTRA, and GUPTA SOMYA. "Conductometric and Viscometric Studies of Gadolinium Soaps." Journal of Indian Chemical Society Vol. 70, Jun 1993 (1993): 577–79. https://doi.org/10.5281/zenodo.5917640.

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Department of Chemistry, Institute of Basic Sciences, Agra University, Agra-282 002 <em>Manuscript received 26 December 1991, revised 7 January 1993, accepted 19 February 1993</em> Conductometric and Viscometric Studies of Gadolinium Soaps

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K., DHANARAJU, RAMADOSSE S, and BALAKRISHNAN R. "An Improvised Viscometric Technique of Studying the Effect of Temperature on Liquid Flow Behaviour." Journal of Indian Chemical Society Vol. 74, Mar 1997 (1997): 228–30. https://doi.org/10.5281/zenodo.5889749.

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Chemical Physcis Laboratory, Department of Physics, Kancht Mamunivar Centre for P G. Studies, Lawspet, Pondicherry-605 008 <em>Manuscript received 30 December 1994, revised 22 August 1995, accepted 27 October 1995</em> An Improvised Viscometric Technique of Studying the Effect of Temperature on Liquid Flow Behaviour

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Soria, V., C. M. G�mez, P. Rodriguez, M. J. Parets, and A. Campos. "Viscometric behaviour of polymer blends based on poly (vinylidene fluoride)." Colloid & Polymer Science 272, no. 5 (1994): 497–503. http://dx.doi.org/10.1007/bf00653213.

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Dissertations / Theses on the topic "Viscometric behaviour"

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Warren, M. Jason. "Viscometric behavior of dilute dewaxed base oil-polymer solutions over a wide temperature range." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ30992.pdf.

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黃柏林 and Pat-lam Patrick Wong. "An investigation of the rheological behaviour of lubricants using the optical impact viscometry technique." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1990. http://hub.hku.hk/bib/B31232036.

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Wong, Pat-lam Patrick. "An investigation of the rheological behaviour of lubricants using the optical impact viscometry technique /." [Hong Kong] : University of Hong Kong, 1990. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12742107.

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Books on the topic "Viscometric behaviour"

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Kudla, Petra. Anomalous Viscometric Behavior of Aot Water-In-Oil Microemulsions. GRIN Verlag GmbH, 2013.

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Book chapters on the topic "Viscometric behaviour"

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Malovikova, A., M. Milas, M. Rinaudo, and R. Borsali. "Viscometric Behavior of Sodium Polygalacturonate in the Presence of Low Salt Content." In ACS Symposium Series. American Chemical Society, 1993. http://dx.doi.org/10.1021/bk-1994-0548.ch024.

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"Continuum-Derived Theories and Experimental Data." In Engineering Rheology, edited by Roger I. Tanner. Oxford University PressOxford, 2000. http://dx.doi.org/10.1093/oso/9780198564737.003.0004.

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Abstract In the previous two chapters we examined the behaviour of materials in various simple flows—at small strains, viscometric flows and elongational flows, both steady and transient. In some cases (for example, steady viscometric flows) we were able to derive some results in special classes of flows (for example, viscometric flows) without the need for an explicit general constitutive equation connecting stress and deformation. Note that eqn (3.20) is not a constitutive equation; it is a restatement of the known stress field. In many cases, however, one is forced to assume a constitutive equation and the question of how one arrives at such a descriptor for general flows needs to be considered.

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"Microstructural Theories." In Engineering Rheology, edited by Roger I. Tanner. Oxford University PressOxford, 2000. http://dx.doi.org/10.1093/oso/9780198564737.003.0005.

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Abstract It is clear from Chapter 4 that in many cases it is difficult to find an accurate, useful material description purely from continuum considerations. In nearly- viscometric flows some success has been achieved and KBKZ-type theory has been generally useful. Nevertheless, it is instructive to try and derive constitutive models from micromechanical models, and this is the concern of the present chapter. An ultimate goal is to derive rheological behaviour from the known material parameters and structure, and progress in this direction is being made.

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BARRACO, M., M. A. ADRIA, M. PIULACHS, E. TRILLAS, C. VALERO, and S. GARCIA. "VISCOMETRICAL AND ELASTICAL BEHAVIOUR OF TILLIA SP.HONEY." In Theoretical and Applied Rheology. Elsevier, 1992. http://dx.doi.org/10.1016/b978-0-444-89007-8.50315-4.

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Bustamante-Torres, Moises, David Romero-Fierro, Bryan Chiguano-Tapia, Estefani Chichande-Proaño, and Emilio Bucio. "Hydrogels and Nanohydrogels." In Frontiers in Nanomedicine. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815136920123030009.

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Hydrogels and nanogels are exciting and promising materials for many applications due to their versatile features, such as interacting and absorbing a significant amount of water and other solvents, excellent mechanical properties, and adhesiveness. These materials are obtained based on the nature of the raw materials (natural or synthetic) and the synthesis route. There are many ways to synthesize hydrogels and nanogels; however, these routes can be classified as physical or chemical. Physical synthesis forms a reversible cross-linking. In contrast, chemical synthesis can generate a stable, rigid, and irreversible polymeric structure. Nowadays, the term “smart hydrogel” has gained significant attention due to its response to external factors, such as pH, temperature, light, electricity, and magnetic, and even an internal approach as substrate. Besides, the characteristics and properties of these polymeric matrices can be enhanced through the synergic relationship with nanoparticles. The inner and outer structure and the behavior of these materials can be studied through characterization techniques, such as light scattering, gel permeation chromatography, viscometry, thermal analysis, spectroscopies, microscopies, and swelling.

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Banjare, Bhupendra Singh, and Manoj Kumar Banjare. "SURFACTANTS CHALLENGES, METHODOLOGY AND ITS VERSATILE APPLICATION." In Futuristic Trends in Chemical Material Sciences & Nano Technology Volume 3 Book 6. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bjcs6p2ch3.

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Modern science demands sustainable, effective, and natural chemicals that make human life easy and harmless, surfactant is one of them. Surfactants are the most widely used chemicals in industry such as clothing, foods, detergents, pharmaceuticals, and agriculture to modern science. Surfactant is a surface-active agent consisting of organic compounds of amphipathic character with great structural diversity. Surfactants' capacity to self-assemble is a highly potent function for many systems that influences the solubility of the weakly water-soluble products to boost their availability. The commercialization of surfactants has been going on for centuries. The effective surfactant can be detected by its physicochemical behavior. Various physicochemical properties of surfactants are determined through different techniques i.e., DLS, UV-visible spectroscopy, surface tension, conductometry, viscometry etc. The mix-micellar activity of two different types of surfactants is known by a variety of theoretical models such as Clint's, Rubing's, etc. Surfactants have a diverse variety of uses, which increases the need for future research that is more sophisticated.This review provides a detailed, well-articulated overview of surfactant classification, characteristics, applications, challenges, future aspects in various fields, and different techniques.

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Conference papers on the topic "Viscometric behaviour"

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Fomin, Sergei, Eileen Harkin-Jones, John Watterson, and S. Raghunathan. "The Run-off Condition for the Non-Newtonian Rimming Flow." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/htd-24225.

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Abstract Rimming flow on the inner surface of a horizontal rotating cylinder is investigated. Using a scale analysis, a theoretical description is obtained for steady-state non-Newtonian flow. Simple lubrication theory is applied since the Reynolds number is small and liquid film thin. Since the Deborah number is very small the flow is viscometric. The Weissenberg number, which characterizes the shear-thinning effect, maybe small or large. A general constitutive law for this kind of flow requires only a single function relating shear stress and shear rate that corresponds to a generalized Newtonian liquid. For this case the run-off condition for rimming flow is derived. Provided the run-off condition is satisfied, the existence of a continuous steady-state solution is proved. The rheological models, which show Newtonian behaviour at low shear rates with transition to power-law shear thinning at moderate shear rates, are considered. Numerical results are carried out for the Carreau and Ellis models, which exhibit the Newtonian behaviour near the free surface and power-law behaviour near the wall of the rotating cylinder.

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Pereira, Américo S., and Fernando T. Pinho. "Rheology and Bulk Flow Characteristics of a Thixotropic Fluid in Turbulent Pipe Flow." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-1161.

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Abstract In this work, aqueous suspensions of 1% and 1.5% by weight Laponite and a blend of 0.5%/ 0.07% Laponite/ CMC are investigated in terms of their rheology and their hydrodynamic behaviour in a pipe flow. The viscometric viscosity was measured for all fluids, but due to the fluid thixotropy a flow-equilibrium procedure was adopted. All fluids were viscoplastic and the measurement of the yield stress was carried out by direct and indirect methods. The yield stress values were of 0.93, 2.13 and 3.4 Pa for the 1% Laponite, 0.5/0.07% Laponite/CMC blend and 1.5% Laponite suspensions, respectively. The oscillatory tests shows that the 1% Laponite suspension is inelastic but the other two suspensions exhibit some elasticity. All solutions exhibited drag reduction with the difference between the total and shear-thinning drag reductions (DR – DRv) of the order of 10% to 20% for both pure laponite suspensions but increasing to 25 to 30% for the laponite-polymer blend. For the pure clay suspensions, and based also on evidence from the literature, it was speculated that DR – DRv, could be due to a strong decrease of the viscosity associated with a turbulence-induced destruction of the internal structure plus a second mechanism more akin to that found with drag reducing polymer solutions.

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Chaudhuri, Anirban, Norman M. Wereley, and R. Radhakrishnan. "Magneto-Rheological Parameter Identification From Viscometric Flow Curves Using Genetic Algorithms." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62380.

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The primary objective of this study is to estimate the parameters of models characterizing the rheological properties of nanoparticle-based magnetorheological fluids. Experiments were carried out for suspensions of nanometer sized iron and cobalt particles. Shear stresses and the strain rates have been calculated for different magnetizing currents. The MR fluid was characterized using Bingham-Plastic and Herschel-Bulkley constitutive models. Both these models have two regimes: a rigid pre-yield behavior for shear stress less than a field-dependent yield stress, and viscous behavior for higher shear rates. Determination of model parameters is a complex problem due to the non-linearity of the model of the large amount of scatter in the experimentally observed data. To estimate the rheological parameters, we used a genetic algorithm and carried out a global optimization. The genetic scheme produces results with trends comparable to the gradient-based techniques and is more accurate. The Herschel-Bulkley fluid model is seen to fit the data with lower errors over a larger range as compared to the Bingham-Plastic model.

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Mompean, G., L. Thais, and L. Helin. "Some Consequences of Material Frame Indifference on Engineering Flow Calculations." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2845.

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The principle of material frame indifference (MFI) is a fundamental and controversial principle of continuum mechanics which has been invoked to derive recent nonlinear algebraic models for stresses of viscoelastic liquids (Mompean, Thompson, and Souza Mendes [2003]) and for Newtonian turbulent fluids (Rumsey, Gatski, and Morrison [2000]). The purpose of the present study is to identify regions of a flow field where MFI should be considered. Such regions are identified by computing the angular velocity of the principal directions of the rate-of-deformation tensor in order to obtain a Euclidean objective vorticity tensor. The method is applied to the planar flow through an abrupt 4:1 contraction. The main results are: (i) MFI should be taken into account in regions characterized by the transition between two different viscometric kinematics and significant velocities (ii) MFI can be safely ignored in regions of pure viscometric behavior as well as in recirculation regions.

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Siginer, Dennis A., and Yunling Li. "Non-Viscometric Flows of Viscoelastic Fluids in Round Tubes Driven by Transversal Boundary Waves." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0093.

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Abstract The unsteady transversal flow field in the tube flow of a memory integral fluid of order type driven by rotational boundary waves is investigated. A perturbation in terms of the amplitude of the sinusoidal boundary waves is used. Qualitative conclusions are independent of the explicit forms of the constitutive functions. Quantitative results are obtained by assuming Maxwell type of behavior for the latter. It is shown that transversal steady flows is a possibility if several rotational waves with frequencies in a certain ratio are imposed on the boundary. As a result helical steady flows may be possible in the longitudinal direction in a round tube. A parametrical study of the oscillating transversal field is presented for highly elastic and shear thinning liquids.

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Kaur, Harpreet, Ramesh C. Thakur, Nidhi Singh, et al. "Influence of 1-butyl-3-propylimidazolium bromide on viscometric and conductometric behavior of proteinogenic amino acids (glycine and L-alanine)." In THE FOURTH SCIENTIFIC CONFERENCE FOR ELECTRICAL ENGINEERING TECHNIQUES RESEARCH (EETR2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0163118.

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Zamora, Mario, Sanjit Roy, and Kenneth Slater. "Issues With the Density and Rheology of Drilling Fluids Exposed to Extreme Temperatures and Pressures." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-11428.

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The 1980’s introduction of costly non-aqueous drilling fluids finally sent the industry a wake-up call to seriously acknowledge the significant impacts of temperature and pressure on the downhole density and rheological properties of drilling fluids. Despite notable progress since then, key issues remain, mostly related to inherent complexities and uncertainties associated with quantifying these effects. Some issues are technical; others are procedural. Concerns are particularly critical on wells drilled under extreme HTHP (high-temperature/high pressure) conditions, in deepwater, and in Arctic and other ultra-cold locations. The primary objective of this paper is to discuss existing issues from well-integrity and wellbore-integrity perspectives, with focus on determining hydrostatic pressures and rheological properties under downhole conditions. Also included are new representative volumetric-behavior and viscometric data measured in the laboratory under extreme HTHP conditions.

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Hong, Sung-Ryong, Shaju John, and Norman M. Wereley. "Quasi-Steady Herschel-Bulkley Analysis of Magnetorheological Dampers With Preyield Viscosity." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82593.

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A magnetorheological (MR) fluid, modeled as a Bingham-plastic material, is characterized by a field dependent yield stress, and a (nearly constant) postyield plastic viscosity. Based on viscometric measurements, such a Bingham-plastic model is an idealization to physical magnetorheological behavior, albeit a useful one. A better approximation involves modifying both the preyield and postyield constitutive behavior as follows: (1) assume a high viscosity preyield behavior over a low shear rate range below the yield stress, and (2) assume a power law fluid (i.e., variable viscosity) above the yield stress that accounts for the shear thinning behavior exhibited by MR fluids above the yield stress. Such an idealization to the MR fluid’s constitutive behavior is called a viscous-power law model, or a Herschel-Bulkley model with preyield viscosity. This study develops analytical quasi-steady analysis for such a constitutive MR fluid behavior applied to a flow mode MR damper. Closed form solutions for the fluid velocity, as well as key performance metrics such as damping capacity and dynamic range (ratio of field on to field off force). Also, specializations to existing models such as the Herschel-Bulkley, the Biviscous, and the Bingham-plastic models, are shown to be easily captured by this model when physical constraints (idealizations) are placed on the rheological behavior of the MR fluid.

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Bakhtiyarov, Sayavur I., and Ruel A. Overfelt. "Rheological and Thermal Properties of Phenolic Resin and Polymeric Isocyanate and Their Blends." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0475.

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Abstract Viscous and thermal properties of a phenolic resin (Part I) and a polymeric isocyanate (Part II), and their blends were investigated by using rotational viscometry. The elastic properties of the blends were investigated by means of a jet thrust technique, using a straight tube. The rheological and thermal properties of the blends were dependent on the blend composition. Although both materials are Newtonian liquids, their blends exhibit non-Newtonian liquid flow behavior and elasticity. A thermo-reaction has been observed and investigated after mixing the two parts.

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Kirby, Glen H., Kevin M. Cooley, and Beth L. Armstrong. "Tailored Rheological Behavior of Mullite and BSAS Suspensions Using a Cationic Polyelectrolyte." In ASME Turbo Expo 2005: Power for Land, Sea, and Air. ASMEDC, 2005. http://dx.doi.org/10.1115/gt2005-68491.

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The effects of a cationic polyelectrolyte, polyethylenimine, on the rheological behavior of aqueous mullite and celsian phase, barium strontium aluminosilicate (BSAS) suspensions have been studied to optimize a dip-coating process. The surface of the ceramic particles was characterized in aqueous media using zeta potential measurements. The ionization behavior and hydrodynamic radius of polyethylenimine in aqueous media was characterized by potentiometric titration and dynamic light scattering measurements, respectively. The rheological behavior of concentrated ceramic suspensions containing polyethylenimine was characterized by stress viscometry and elastic modulus measurements. Polyethylenimine imparts repulsive, electrosteric interactions between mullite and BSAS particles in aqueous suspension, resulting in shear thinning flow behavior, linear elastic moduli, and yield stress values that are minimized for suspensions with a critical PEI concentration of 0.2 mg PEI per m2 of mullite and 0.4 mg PEI per m2 of BSAS, respectively. The elastic moduli and yield stress of mullite and BSAS suspensions were nearly identical at equivalent fractions of their critical PEI concentration. Uniform coatings were obtained upon dipping SiC, Si3N4, and Si-metal substrates into shear-thinning suspensions containing PEI at 81–88% of the critical concentration. Dense mullite coatings were demonstrated on SiC substrates after sintering at 1400°C.

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