By G. Davison, B.C. Lane
Ingredients in Water-borne Coatings covers either present expertise and the long run diagnosis for the main ingredients utilized in water-borne coatings this day. It brings jointly foreign services to supply a entire, functional evaluate of the sector, its course, and choice of key ingredients presently hired for in-depth remedy in their use, behaviour and scope via specialist practitioners in these ingredients. This well timed booklet contains first-class plenary chapters reviewing the advancements including the regulatory and legislative scene within the total box. It additionally includes seven in-depth chapters dedicated to key additive kinds, in particular; rheology modifiers, matting brokers, floor lively brokers, dispersants, defoamers, and biocides. moreover, the e-book presents: ·a systematic method of additive choice - additive ideas - for the improvement of a coating ·a solid knowing of the biocidal degradation results and the most important biocide strengths and weaknesses in addressing them ·the reader with an intensive knowing of silica-based matting brokers and their mode of motion ·useful overviews of water borne dispersants, silicone floor energetic brokers and cellulosic and associative thickener rheology modifiers This key booklet amalgamates a few of the most up-to-date advancements during this box and gives an authoritative resource of data for the study group and people within the undefined, in addition to offering useful details to graduate and postgraduate scholars.
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Additional info for Additives in Water-Borne Coatings (Special Publication)
HALS (tetramethylpiperldine) Surfactants. Defoamers, antifoams, Numerous anionic, non-ionic, cationic and anti flood and float, wetting aids, amphoteric agents. Silicones; amphipathic emulsifiers, levelling agents, pigmenl polymers. Polysiloxanes dispersants. Colorant acceptor Water repellents. Coalescing Agents Coupling Propylene glycol; benzyl alcohol; glycol ethers; ester alcohols; ethylene glycol. Solvents, freeze thaw stabilisers. Conductive pigments. Polar solvents Antistatic Electrostatic spraying Adhesion Dromoters Silanes.
Additives or Modifiers I ey Coating Properties . t ; . Dry Paint Film Pignents and Extenders Figure 1 Paint components and their relationship to Key Coating Properties In the case of compositions containing a volatile carrier or solvent, it is enough to spec@ the volume solids and pigment volume concentration in order to illustrate the essential character of the composition. However, the detail will depend on many other factors such as the physical form of the components. Although there are examples of coatings which are viable using only the main components, by far the majority will require functional modifiers (additives) in order to realise their full potential, or in some cases to be viable.
The hue of the paint is usually related to the size of agglomerates with the smaller size yielding a desirable blue undertone. A consistent theme from paint manufacturers is to produce water-based blacks with equal jetness, and hue, to solvent-based paints. The highest jetness blacks have extremely high surface areas (300-550 m2/g) and are extremely difficult to stabilize effectively. A series of high surface area blacks with different surface chemistries has been evaluated with a range of polymeric dispersants to study optimum jetness.
Additives in Water-Borne Coatings (Special Publication) by G. Davison, B.C. Lane