丙烯酸酯共聚物对红颜料PR48:2的分散作用

Dispersion Effect of Acrylate Copolymer on the Red Pigment PR48:2

研究了亲水型丙烯酸酯共聚物连接料直接对红颜料PR48:2滤饼分散性能的影响。结果表明,搅拌时间超过3 h、共聚物中丙烯酸(AA)的质量分数为40％、引发剂BPO质量分数为2％时,PR48:2红颜料滤饼在共聚物溶液中有最佳分散;表征颜料粒子分散程度的涂膜颜色三刺激膜中的红值α为66,高于粉状颜料形成的涂膜红值(44);用滤饼直接制得的分散液具有高的色度,颜料的展色效果更好。

The dispersion effect of acrylate copolymer binder consisted of butyl acrylace(BA) and acrylic acid (AA) on red pigment cake PR48: 2 was studied. The results showed that the best dispersion could be obtained as the stirring time over 3 h, ω(AA)=40% and ω(BPO)=2%, the red value in colour three stimuli characterisation of the dispersion film was 66, higher than that from pigment powder(44). The dispersion of pigment press cake showed higher colour strength, and the pigment kept better colour characteristic.