Jo Kiyokazu, Ishizuka Motoyoshi, Shimabayashi Katsuomi, Ando Tsuyoshi
Surfactants Research Department, Sanyo Chemical Industries, Ltd.
J Oleo Sci. 2014;63(12):1303-8. doi: 10.5650/jos.ess14110.
Water-based architectural paints commonly contain either mineral oil-based or silicone-based antifoams. Mineral oil-based antifoams generally reduce the gloss of paint films; thus, silicone-based antifoams are mainly used in the field of architectural paints. The relationship between the antifoaming performance and the particle size of hydrophobic silica for mineral oil-based antifoams was investigated and a novel mineral oil-based antifoam that provided a glossy surface to the paint films equivalent to the surface obtained with silicone-based antifoams and with excellent antifoaming performance compared to silicone-based antifoams was developed. The novel mineral oil-based antifoam exhibits better performance than silicon-based antifoam, and thus the former is a perfect alternative to the latter for use in architectural paints.
水性建筑涂料通常含有矿物油基或硅氧烷基消泡剂。矿物油基消泡剂通常会降低漆膜的光泽度；因此，硅氧烷基消泡剂主要用于建筑涂料领域。研究了矿物油基消泡剂的消泡性能与疏水二氧化硅粒径之间的关系，并开发了一种新型矿物油基消泡剂，该消泡剂能使漆膜表面具有与硅氧烷基消泡剂相当的光泽，且与硅氧烷基消泡剂相比具有优异的消泡性能。这种新型矿物油基消泡剂的性能优于硅基消泡剂，因此前者是建筑涂料中后者的完美替代品。
