Improving explosive emulsions by understanding surfactant interactions. This project will design new surfactants that will lead to more cost effective, stable and reliable explosive emulsions. The pressure required to force dispersed phase droplets to coalesce will be measured both directly and by osmotic stress. These parameters have not previously been measured for an inverse emulsion system. The measurements made will be correlated to the structure of the stabilising surfactant enabling new a ....Improving explosive emulsions by understanding surfactant interactions. This project will design new surfactants that will lead to more cost effective, stable and reliable explosive emulsions. The pressure required to force dispersed phase droplets to coalesce will be measured both directly and by osmotic stress. These parameters have not previously been measured for an inverse emulsion system. The measurements made will be correlated to the structure of the stabilising surfactant enabling new and more effective surfactants to be designed.Read moreRead less
Bubble Stabilization and Density Control in Self-Supporting Explosive Emulsions. The mining industry in Australia employs about 70,000 people and has a total sales and service income of about $55B. Most mining outputs are commodities and a reduction in cost is the primary method of increasing market share. DNAP is a major supplier of explosive services to mines that produce coal, iron ore and gold for export. The work in this project will lead to more efficient explosives emulsions and allow mi ....Bubble Stabilization and Density Control in Self-Supporting Explosive Emulsions. The mining industry in Australia employs about 70,000 people and has a total sales and service income of about $55B. Most mining outputs are commodities and a reduction in cost is the primary method of increasing market share. DNAP is a major supplier of explosive services to mines that produce coal, iron ore and gold for export. The work in this project will lead to more efficient explosives emulsions and allow mining tolower total cost per unit sold. Such improvements in mining efficiencies will have a direct impact of the selling price of the product. Increased export earnings and a greater number of people employed in the industry would be direct results of the successful completion of the work proposed.Read moreRead less
Nanoparticles with designed morphology for surface-coating applications. Significantly improved water-based paints, with zero volatile organic content and organic opacifiers, are highly desirable for environmental and health reasons. The science needed to produce such paints has been persistently elusive. USyd and Dulux will collaborate to achieve these paints by using Australian-developed platform technologies that allow polymer architecture to be controlled at molecular and nanoscale levels. T ....Nanoparticles with designed morphology for surface-coating applications. Significantly improved water-based paints, with zero volatile organic content and organic opacifiers, are highly desirable for environmental and health reasons. The science needed to produce such paints has been persistently elusive. USyd and Dulux will collaborate to achieve these paints by using Australian-developed platform technologies that allow polymer architecture to be controlled at molecular and nanoscale levels. This will give us the means to make structured nanoparticles with morphologies that had been regarded as unachievable, and that are the key to dispensing with harmful ingredients in paints.Read moreRead less
Extraction of gold from thiosulfate leach liquors using selective magnetic ion exchange (MIEX) resins. Cyanide processes used for gold leaching can cause severe environmental problems. This proposal studies the use of thiosulfate as an alternative, concentrating on the design and synthesis of new functionalised magnetic ion-exchange resins, which will act as selective adsorbents for the gold thiosulfate complex and thereby facilitate the implementation of this efficient, low environmental impact ....Extraction of gold from thiosulfate leach liquors using selective magnetic ion exchange (MIEX) resins. Cyanide processes used for gold leaching can cause severe environmental problems. This proposal studies the use of thiosulfate as an alternative, concentrating on the design and synthesis of new functionalised magnetic ion-exchange resins, which will act as selective adsorbents for the gold thiosulfate complex and thereby facilitate the implementation of this efficient, low environmental impact process. Since the leaching is typically applied to ores rich in copper, resins for the recovery of copper will also be designed. Laboratory proving trials will be conducted and successful candidates will be considered for future commercialisation of a Resin-in-Pulp leaching and recovery process.Read moreRead less
Preparations, Properties, and Applications of New Hydrogels. This project aims to develop a new polymeric matrix system for improved biological separations such as fibrinogen, DNA and RNA. These new hydrogels and membranes will not only be capable of separating biomacromolecules, not possible within the existing systems, but will also develop a new size exclusion type separation system for electrophoresis. The success of the project will have a significant impact in the biotechnology industry. P ....Preparations, Properties, and Applications of New Hydrogels. This project aims to develop a new polymeric matrix system for improved biological separations such as fibrinogen, DNA and RNA. These new hydrogels and membranes will not only be capable of separating biomacromolecules, not possible within the existing systems, but will also develop a new size exclusion type separation system for electrophoresis. The success of the project will have a significant impact in the biotechnology industry. Particularly, it will provide efficient methodologies to fractionate a number of important blood products and strengthen Australian's leading role in this field.Read moreRead less
Rubbery nanoparticles for improved plastics, additives and adhesives through novel low-temperature polymerization. This project will create the enabling science for producing better pressure-sensitive adhesives, leather treatment, bitumen additives and engineering plastics, by the first-ever synthesis of acrylic latex at low temperatures. This will allow certain reaction processes to predominate that will result in molecular architectures that are very different from those currently made. The re ....Rubbery nanoparticles for improved plastics, additives and adhesives through novel low-temperature polymerization. This project will create the enabling science for producing better pressure-sensitive adhesives, leather treatment, bitumen additives and engineering plastics, by the first-ever synthesis of acrylic latex at low temperatures. This will allow certain reaction processes to predominate that will result in molecular architectures that are very different from those currently made. The result will be enhanced material properties, such as better-wearing leather coatings, greater scratch and shock resistance in vehicle and domestic plastics (with reduced environmental insult in manufacture and usage), improved endurance for bitumen road surfaces, and layered packaging that needs less adhesive per unit of strength.Read moreRead less