| Résumé : |
In water-based decorative coating manufacture, amine choice can significantly impact formulation requirements and ultimately, the performance of the finished paint system. The functionality of the amine is of special importance. When used properly, a highly functional amine can reduce the amount of additives required, thus lowering formulation costs, while helping the finished paint achieve optimal performance. AMP-90, (2-amino-2-methyl-1-propanol) offers such advantages. A low molecular weight amino alcohol, it possesses two primary functionalities; dispersion and pH neutralization. When used to its fullest capabilities, the additive produces a system with good scrub and water resistance, maximum hiding power, color acceptance and stability at lower anionic dispersant levels than are normally required to achieve such performance. Research shows that dispersant and wetting agent demand can be reduced by 25%, and coalescing aids optimized by 10%. Further, it demonstrates greater pH stability than ammonia and sodium hydroxide, while eliminating the safety and handling issues associated with these products. |
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Additive optimizes dispersion in EUROPEAN COATINGS JOURNAL (ECJ), N° 12/98 (12/1998)
