Revista Paint & Pintura - Edição 227

CLIPPING PAINT&PINTURA | Novembro 2017 | 11 technologies that have launched recently, especially when it comes to current polymer chain structure modifications. As for wetting agents, those which are either environmentally com- pliant or environment-friendly are in higher demand. Generally speaking, these are products that have beenmodified and have evolved significantly over the past five years, and we certainly haveexcellentitemsavailable,”saysAiltonRibeiro,salesmanager at Alcolina’s Manufacturing business. According to Luis Carthery Junior, business director for Latin America, the Brazilian market has also seen some significant growth inadditiveusage. “Despite the tougheconomic situation weare inas acountry, because these technologies enableoverall production costs to be reduced, they are being embraced as an alternative for companies to stay competitive and improve productivity. By our projections, the market for these products is going tooutgrowthepaint andcoatings industryover thenext few years thanks not only to an economic upturn, but also and especially to an increased adoption and broader use of these technologies by manufacturers.” This increase in demand for wetting and dispersing agents also stems fromthenumerousbenefits theyprovide inpaint formula- tions. “Dispersing agents foster pigment wetting, improve grinding efficiency, contribute to reducing viscosity, allow for higher pigment concentrations, stabilize pigments to keep themfromflocculating, and increase tinting strength. We alsoprovide hyperdispersants, featuring enhancedpig- ment stabilizingproperties,moreefficient pigment particle size reduction, and greater system viscosity reduction as well. Theseare the reasonswhy these typesof additives are used in inkjet systems, for example,” saysMarlon Braidott, technical consultantonadditives forBASF inSouthAmerica. Fabiana Marra, marketing manager and research and de- velopment manager for paints and coatings at Oxiteno, explains that wetting agents must be able to reduce the surfacetensionofwater,allowingittowetfillerandpigment particles and improving the dispersion process, especially when it comes to waterborne systems. “These wetting agents also need to be capable of adsorbing onto the pig- mentorfillersurface,reducingtheviscosityofthecolorcake andthusassistingtheoperationbyallowinga larger amount of pigments andfillers tobe used in cake. Bothwetting and dispersingagentsmustbecompatiblewiththemediumand

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