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Showing 1 to 20 of 477 for “"emulsion"”.
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Emulsion Polymerization Using Switchable Surfactants
… use of CO2-triggered switchable surfactants in emulsion polymerization of hydrophobic and hydrophilic monomers. Bicarbonate salts of the following compounds were employed as surfactants in the emulsion polymerization of styrene, methyl methacrylate (MMA) and/or butyl methacrylate (BMA): …
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Polymerization in emulsion microdroplet reactors
The goal of this research project is to utilize emulsion droplets as chemical reactors for execution of complex polymerization chemistries to develop unique and functional particle materials. Emulsions are dispersions of immiscible fluids where one fluid usually exists in the form of drops. Not …
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Optical Deformation of Emulsion Droplets
… of optical traps. Optical deformation of microemulsion droplets has previously been demonstrated for systems with ultra-low interfacial tension. A disadvantage of the systems used was the strong temperature-dependence of the interfacial tension. I have explored options for creating …
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Scale-up in emulsion polymerisation
… procedure for successful scale-up of batchwise emulsion polymerisation has been studied. The relevant literature on liquid-liquid dispersion on scale-up and on emulsion polymerisation has been crit1cally reviewed. Batchwise emulsion polymerisation of styrene in a specially built 3 litre, …
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Characterization of Emulsion Aggregate Mixtures
The engineering properties of Emulsion-Aggregate Mixtures (EAM's) are characterized using laboratory and field testing. Dense-graded and open-graded aggregates treated with HFE-300 and CSS-1 emulsions are evaluated. Shear strength, repeated loading response (resilient modulus, permanent …
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Aspects of Suspension & Emulsion Polymerisation
Suspension polymerisation involves a dynamic equilibrium between monomer break up and coalescence.<br/><br/>A water soluble polymer (the suspending agent) is added to the aqueous phase to stabilise the monomer drop form during its conversion to a solid reaction product. Depending on the type and …
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Synthesis and Optimization of Emulsion Polymers
… with the synthesis of an acrylic latex. Various emulsion polymerization processes were used including semi-batch, starved-feed, and in-situ seeded in the attempt to produce a stable latex that can be used in a broader study concerning the syneresis and rheology mechanisms of latex/thickener …
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Mathematical modelling in batch emulsion polymerization
Emulsion polymerisation, suspension polymerisation and the dispersion processes of styrene in water have been carried out at 50°C in a stainless steel, stirred batch reactor of 3.63 dam capacity. The reactor was fitted with a temperature control facility and could be operated with or without …
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Emulsion templated assembly of composite particles
… assembly of readily available nanoparticles in emulsion droplets. With the emulsion acting as a geometrical template, the structure and size of the final system can be controlled. Using nanoparticles as building blocks, enables facile tuning of the final system to produce materials with multiple …
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Active emulsion droplets driven by Marangoni flow
… beinhaltet Theorie und Simulation aktiver Emulsionstropfen, die aufgrund einer inhomogenen Oberflächenspannung auf ihrer Grenzfläche schwimmen. Der zugrundeliegende Effekt heißt Marangoni-Effekt. Eine Möglichkeit den Marangoni-Effekt zu nutzen um einen Tropfen in Bewegung zu setzen, basiert …
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Refining Particle Size Specification for Asphalt Emulsion
… number of these treatments use asphalt emulsion (which are refer to simply emulsions from here on). Emulsions are classified based on their particle charge and reactivity. Emulsions used in chip seals are usually of rapid set reactivity and are classified based on tests over fifty years …
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Controlled emulsion droplet solvent evaporation for particle production
… processes typically used. We employ the emulsion droplet solvent evaporation method, which is extremely versatile, to create, for example, magnetic nanoparticles, polymeric Janus beads, and crystalline particles. The emulsion droplets act as confined spaces, or templates, within which the …
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Development of a New Cold Binder Course Emulsion Asphalt
… have resulted in the development of cold bitumen emulsion mixtures (CBEMs). However, to date, low early life stiffness, a slower rate of curing, the length of time necessary to achieve full strength, high air void contents and the presence of moisture in these mixtures have prevented them from …
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