A water-in-water(w/w) multicolor coatings with excellent comprehensiveproperties was prepared based on the hydrophilic isocyanateas curing agent,lithium magnesium silicate as protective glue,combination of dispersed hydroxyl acrylic resin andelastic polyacrylic latex as dispersed phase,and by using the gelation reaction betweeninterlayer exchangeable cations in lithium magnesium silicate and hydroxyl groups inhydroxyethyl cellulose and the cross-linking of hydroxyl resin and hydrophilic curing agent.The experimental results showed that when the blending ratio of dispersion and latex was 1∶4, —NCO curing agent and —OH component was 1∶2(by molar ratio),and the bleeding was 4% with high concentration protective glue,the obtained color particles was characterized by its moderate stiffness,high color strength,and better color bleeding resistance,as well as goodapplicability without sagging and good storage stability.Some problems of the w/w multicolorcoatings during production and application,such as bleeding,easy breakage of color particles and unevensurface after spraying were solved.
PANG Jiang
,
MAO Wei-Jie
. Study on the Stability of Color Particle of Texture W/W Multicolor Coatings[J]. Paint & Coatings Industry, 2019
, 49(9)
: 14
-20
.
DOI: 10.12020/j.issn.0253-4312.2019.9.14
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