By C.D. Anderson, E.S. Daniels
The time period latex covers emulsion polymers, polymer dispersions and polymer colloids. This evaluate record offers a normal evaluate of the emulsion polymerisation procedures and explains how the ensuing latices are utilized in business purposes. The periods of emulsion polymers are surveyed and the industrial applied sciences and capability destiny makes use of mentioned. an extra listed part containing a number of hundred abstracts from the Polymer Library offers helpful references for additional examining.
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Extra info for Emulsion Polymerisation and Latex Applications
The surface of the particles is functionalised with recognition molecules. The target substance is adsorbed to the target-specific surface of the particle. When the particles are subjected to a magnetic field, they are separated, along with the target substance, from unwanted materials. S. D. S. , Science and Technology of Latex Systems, ACS Symposium Series 801, American Chemical Society, 2002. 2 D. Urban and K. , Polymer Dispersions and Their Industrial Applications, Wiley-VCH, Weinheim, 2002.
Water-based emulsion polymers are an environmentally-attractive alternative to solvent-based coatings. The individual latex particles in the coating must coalesce with one another to form a seamless polymer film. The film formation process progresses in several stages as illustrated in Figure 8 (367). In the first stage, water in the latex evaporates (a), and the latex particles begin to touch one another (b). In the next stage, the latex particles are compressed by capillary forces (and soft particles deform into hexagonal shapes) (367) as the water continues to evaporate (c).
Pigments and fillers are often, but not always, used in conjunction with acrylic latexes acting as binders (229). , strength and modulus) of the system can be modified according to the type and amount of pigment or filler material used. 3 Polyvinyl Acetate Vinyl acetate (VAc) copolymers are most often used as binders in interior and exterior architectural coatings, and in adhesive applications. Vinyl acetate monomer is relatively inexpensive and its polymer has good wear resistance properties, making it ideal for these purposes.