Water-based coating additives-thickener-alkali swelling thickener
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Alkali swelling thickeners are divided into two categories: non-associative alkali swelling thickeners (ASE) and associative alkali swelling thickeners (HASE), both of which are anionic thickeners. Non-associative ASE is a polyacrylate alkali-swellable emulsion. Such thickeners are, for example, ASE 60 from Rohm Haas and Viscalex HV-30 from Ciba. Associative HASE is a hydrophobically modified polyacrylate alkali-swellable emulsion. Olesen et al. Introduced that in color matching paint, when the amount of colorant is about 4% -8%, the Stormer viscosity of the coating after the colorant is reduced by about 30KU-40KU, resulting in inconsistent viscosity and sagging of paints of the same variety and different colors. And reduced storage stability.
