Improvement of dye properties of the azo pigment yellow 12 using a micromixer-based process
Improvement of dye properties of the azo pigment yellow 12 using a micromixer-based process
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DOI：
10.1021/op049789e
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发表时间：
2005-03-01
影响因子：
3.4
通讯作者：
Wu, L
中科院分区：
文献类型：
--
作者：
Pennemann, H;Forster, S;Wu, L
着色颜料的性能主要受粒度以及粒度分布的影响。由于两者都受到生产过程的影响，使用微混合器装置研究了颜料黄12的合成。微混合器通过多层薄层确保快速混合，从而与间歇工艺相比更快地完全混合反应物。发现基于微混合器的方法导致较小的颜料尺寸分布。这导致颜料性能的改善。与市售黄12标准品相比，光泽度增加了73%，透明度增加了66%，着色力不变。
The properties of coloured pigments are primarily affected by the particle size as well as the size distribution. As both are influenced by the production process, the pigment synthesis of Yellow 12 was investigated using a micromixer apparatus. The micromixer ensures fast mixing by multilamination of thin lamellae and thereby a faster complete mixing of the reactants compared to batch processes. It was found that the micromixer-based process leads to a smaller pigment size distribution. This results in an improvement of the pigment properties. Compared to a commercially available Yellow 12 standard the glossiness was increased by 73% and the transparency by 66% with unchanged tinctorial power.