Evaluating modern printing inks: the behaviour of charged particles in concentrated nonaqueous colloidal dispersions. The Partner Organisation in this proposal, Research Laboratories of Australia (RLA) is a small Adelaide-based company which is at the forefront of modern colour printing technology. RLA provides liquid toners to several major international manufacturers of colour printers for use in liquid immersion development processes. This proposal will develop an instrument for characterisin ....Evaluating modern printing inks: the behaviour of charged particles in concentrated nonaqueous colloidal dispersions. The Partner Organisation in this proposal, Research Laboratories of Australia (RLA) is a small Adelaide-based company which is at the forefront of modern colour printing technology. RLA provides liquid toners to several major international manufacturers of colour printers for use in liquid immersion development processes. This proposal will develop an instrument for characterising the properties of liquid inks, enabling continual R&D improvement of RLA's products. Furthermore, the instrument can be commercialised and marketed worldwide to companies dealing with concentrated colloidal dispersions in a wide range of industries including foods, pharmaceuticals, cosmetics and surface coatings.Read moreRead less
A new angle on the coalescence of drops. Many processes depend on what happens when drops and/or bubbles collide with each other, or with the surfaces of other materials. Examples include inkjet printing, agricultural spraying, spray coating of paints, pharmaceutical formulation, stability of cosmetics and foodstuffs, formation of froths and foams, and flow of bubbly liquids. To control these processes, we need to understand how and why drops sometimes do and sometimes do not coalesce with each ....A new angle on the coalescence of drops. Many processes depend on what happens when drops and/or bubbles collide with each other, or with the surfaces of other materials. Examples include inkjet printing, agricultural spraying, spray coating of paints, pharmaceutical formulation, stability of cosmetics and foodstuffs, formation of froths and foams, and flow of bubbly liquids. To control these processes, we need to understand how and why drops sometimes do and sometimes do not coalesce with each other or adhere to surfaces. The knowledge gained in this project will enable improvements to be made in the efficiency of processes such as those listed above.Read moreRead less
Optimising the Capture of Fine and Coarse Particles in Mineral Flotation. The aim of this project is to optimise the physical conditions for the capture of both fine and coarse particles by gas bubbles in flotation. The projects significance lies in the fact that fine and coarse particles represent the major economic loss of minerals in flotation. New methods to characterise the physical environment in flotation, as well as new approaches to modelling flotation will be expected outcomes of the ....Optimising the Capture of Fine and Coarse Particles in Mineral Flotation. The aim of this project is to optimise the physical conditions for the capture of both fine and coarse particles by gas bubbles in flotation. The projects significance lies in the fact that fine and coarse particles represent the major economic loss of minerals in flotation. New methods to characterise the physical environment in flotation, as well as new approaches to modelling flotation will be expected outcomes of the project.
Read moreRead less
Viscous extensional flow and drop breakoff. Honey falling from a spoon is an everyday example of a viscous fluid in a free extensional flow which may eventually break up into drops. Such flows are important in modern technologies including ink-jet printing, welding, soldering and molten metal processing, polymer and glass fibre spinning, and for rheological measurement. We seek to increase understanding of the mechanisms governing such flows, particularly the role of initial conditions and the ....Viscous extensional flow and drop breakoff. Honey falling from a spoon is an everyday example of a viscous fluid in a free extensional flow which may eventually break up into drops. Such flows are important in modern technologies including ink-jet printing, welding, soldering and molten metal processing, polymer and glass fibre spinning, and for rheological measurement. We seek to increase understanding of the mechanisms governing such flows, particularly the role of initial conditions and the geometry of the original containing vessel, together with balances between forces such as inertia, gravity, viscosity, viscoelasticity, and surface tension, through a theoretical, computational and experimental study of the fluid mechanics.Read moreRead less