By Bodo Müller, Ulrich Poth
Your entire wisdom base in terms of the formula of paints and coatings: already in its third variation, this booklet imparts the composition of coatings truly, putting unique emphasis at the base binder in each one kind. recommendation on particular formulations is then given sooner than formula guidance are analysed. Examples of the way to boost a real-life paint formula around off this helpful general paintings.
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This is a dedicated single-user copy of an ebook. Copyright laws apply; it is prohibited to copy or distribute the ebook or any part hereof. ©2012 Vincentz Network Stabilization of dispersions 45 Everybody knows that it takes energy to upset an upright bottle (to effect a transition to the stable state). 4). , the higher the activation energy needed to tip it over (transition to the stable state) and the more stable the metastable state is. , why are they metastable? Because they can be prevented from flocculating by electrostatic or steric stabilization.
Copyright laws apply; it is prohibited to copy or distribute the ebook or any part hereof. ©2012 Vincentz Network 40 2 Part I - Pigment dispersions Pigment dispersions As the dispersion of pigments and fillers (extenders) is the most important step in paint manufacturing, some fundamentals of disperse systems are presented below. 1). 1 Fundamentals of disperse systems Pigmented paints are disperse systems with very large phase boundaries. This chapter deals only with coatings technology and presents a simplified view of the most important facts needed for an understanding of the manufacturing and properties of paints.
One remedy to this is to add a defoamer. 1 g/l 1 g/l n=6 38 30 29 n = 10 45 31 30 n = 30 54 40 36 It should be noted, that recently nonylphenol ethoxylates showed disadvantages with respect to toxicity To sum up so far, the more hydrophobic the “tail” and the less hydrophilic the “head”, the more effective is the wetting agent. However, solubility acts as a limiting condition in water. If the “head” is not hydrophilic enough, the surfactant will not dissolve. 21), the surfactant having n = 4 is not completely soluble in water.