The emulsifier used will determine which emulsion type is formed. Emulsion can be either oil-in-water (O/W) emulsions where the dispersed phase is oil and the continuous phase is water, or water-in-oil (W/O) type where the phases are reversed. How emulsions are formed?Įmulsion are formed by agitation two immiscible liquids such as oil and water together with the presence of an emulsifier, which can be for example a protein, phospholipid or even nanoparticle. In case of unwanted emulsions, the destabilizing agents need to be utilized to break them. When emulsions are wanted their stability is crucial for the quality of the product. But they are also formed as a side product in different industrial processes. Emulsions are formed intentionally to create different type of products from mayonnaise to day creams and paints. Emulsions are found everywhere from food products to crude oil production. Characterizations and applications for biobased latex.Emulsions are dispersed systems of two immiscible liquids such as oil and water.Biobased surfactants and pickering emulsions.Reactive latex and cross-linkable coatings.Reactivity and molar mass issues in emulsion polymerization.Innovative and promising bio-based monomers for industrial polymers.The objective is to address issues and gaps concerning: We propose to gather the highest-level contributions from the academic and industrial communities on these remaining challenges. Developing greener coatings is certainly important, but companies are also concerned with the reduction of waste and the carbon footprint. Finally, functional coatings which avoids the superposition of several coatings for same properties is also an economic and environmental advantage. Hence the substitution or replacement of these surfactants is still important. Additionally, some toxic surfactants or additives could leach out of the final coatings. Hence, crucial challenges such as the substitution of styrene and other harmful petro-based acrylates remain. Moreover, most emulsion polymers are prepared from relatively harmful monomers such as acrylates, styrene or isocyanates. Hence, numerous bio-based emulsion polymers have been developed from vegetable oils or sugar derivatives to yield bio-based latex. The desire and need for more sustainable and more energy efficient materials have encouraged the use of more bio-based and safer chemicals. Aqueous polymerization in dispersed media includes several related processes such as emulsion polymerization, miniemulsion polymerization, microemulsion polymerization, dispersion polymerization and suspension polymerization. Moreover, it reduces the reaction medium viscosity and improves heat transfer enabling easier reaction temperature control. The use of water as a continuous phase has already several advantages, as it is an innocuous and nonflammable solvent. Nowadays, companies are looking at “green” coatings and sustainability from a holistic standpoint. However, meeting environmental regulations is not enough. In the past, paint and coatings industry focused research and development efforts to develop low VOC technologies for paints, binders and sealants. Sustainability is one of the most discussed issues in the industry. Organizers: Sylvain Caillol, Institut Charles Gerhardt Montpellier Vincent Ladmiral Dean Webster
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