Rheological properties kinetics

Despite their flaws, batch processes have stood the test of time for a number of reasons, the most important of which is the flexibihty it brings to the manufacturer in terms of the range of products that the plant can produce, the feedstocks used to produce them, and the speed at which they can be brought to market with very limited information on physical properties, reaction kinetics, and so on (very few, if any, Michelin-starred chefs have ever measured the rheology or kinetics of their latest culinary creation). This flexibility, however, has a price which comes in the form of lower efficiencies in terms of production, energy, labor, and so on, and ultimately efficiency equates to cost However, one should never underestimate the pull of flexibility particularly, as discussed earlier in the examples of fermentation, where control of important parameters is difficult to achieve. 

Dynamic Rheological Properties of the Reconstituted Milks During the Coagulation Kinetics... 

Alvarez, M. D., Canet, W. (2002). A comparison of various rheological properties for modelling the kinetics of thermal softening of potato tissue (cv. Monalisa) by water cooking and pressure steaming. Int. J. Food Sci. Technol., 37, 41-55. 

Influences of the different methacrylates and 1,2-polybutadiene as coagents on the mechanical and rheological properties of the peroxide-cured PP/EPDM TPVs were reported by Rishi and Noordermeer [39, 40]. They interpreted the results in terms of solubility parameter and cure kinetics. The effects of coagents on both processing and properties of the compound depend on the nature of the polymer, type of peroxide, and other compounding ingredients. Among the methacrylate... 

The main rheokinetic problem consists of the determination of the time dependence of the degree of conversion (3(t) and the correlation between (3(t) and the changes in the rheological properties of the reactants. One possible kinetic function (3(t) was discussed in Section 2.2. In considering the rheological properties of the reactive medium, we can neglect non-Newtonian... 

A complete analysis of the role of the radial distributions of all the parameters that determine the flow through a tubular reactor during polymerization is a very complicated, and it is doubtful whether general solutions can be found. However, solutions can be obtained for various situations for a system with known kinetic and rheological properties, because we will be searching for specific details rather than for a general physical picture of the process. It is also possible to carry out a general analysis at certain simplified models, which nevertheless include the principal rheokinetic effects. 

Particle size distribution of a latex has a pronounced influence on its rheological properties, storage stability, and film forming capabilities Q ). In addition, latex particle size distributions provide information on polymerization mechanisms and kinetics (2), and provide a means of polymerization control (3,4). 

Carter, E.J.V., Paredes, G.E., Beristain, C.l. and Tehuitzil, H.R. (2001) Effect of foaming agents on the stability, rheological properties, drying kinetics and flavour retention of tamarind foam mats. Food Research International 34, 587-598. 

Many different test methods are used to measure the reactivity or cure rate of the epoxy adhesive. Some of these, such as working life or pot life, are very practical and are used to plan the production process. Others, such as exotherm, are used to determine reaction kinetics. Still others are used to characterize the epoxy network as it cures for the purposes of determining the degree of crosslinking and the rheological properties of the curing adhesive. 

The effect of the minor components was kinetic, rather than thermodynamic. Although the crystallization kinetics were altered, the structure and mechanical properties of milk fat were the same with or without the minor lipids. The samples reached the same SFC value and had a similar microstructure as observed visually and as characterized by the fractal dimension. The rheological properties of the fats were also similar. Neither the storage modulus nor the yield force was affected by removal of the minor components (Wright and Marangoni, 2003). Large changes in the... 

The materials in Sect. 3 and 4 demonstrate the following principle idea rheological properties and crystallization kinetics of thermoplasts, filled with inert disperse fillers, including mineralorganic, do not depend on the filler type and the organic component content. 

The simplest method for evaluation of the degradation kinetics of a high molar mass HA polymer is to measure changes in MMD, hydrodynamic or rheological properties. Changes in MMD of the HA could be measured by an SEC system equipped with an on-line LS detector. Using such a method, the complete MMD of the... 

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