摘要
在苯酐-尿素法基础上,采用氯化铵作为酸性助剂参与缩合反应工艺,制备酞菁蓝颜料。讨论了酸性助剂对酞菁蓝颜料的收率、质量及其在水基体系中的分散性、分散稳定性的影响。优化的缩合反应条件为:以氯化铵作为酸性助剂,苯酐的加入量为25%(摩尔分数),所得颜料的收率可达到98%,且颗粒疏松,色光鲜艳;同时该颜料在水基体系中更易研磨分散,颜料色浆颗粒细小且粒径分布均匀,贮存稳定性较优。
Phthalocyanine blue pigments were prepared by condensanon reacuuH , monium chloride as acidic additive, based on phthalic anhydride-urea process. Effects of acid- ic additives on the yield and quality of phthalocyanine blue pigmengt, its dispersion and stabil- ity in water-based systems were discussed. The optimal reaction conditions were obtained： when ammonium chloride was used as the acidic additive, 25% （molar fraction） of phthalic anhydride was added, the yield of the pigment reached to 98%. The obtained pigment was fea- tured by its loose particles, bright shade, easily dispersed in water-based systems, with small and uniform particle size in colorants and better storage stability.
出处
《涂料工业》
CAS
CSCD
北大核心
2014年第2期39-42,共4页
Paint & Coatings Industry
关键词
酞菁蓝
合成改进
水性
酸性助剂
氯化铵
phthalocyanine blue
improved synthesis
waterborne
acidic odditives
am- monium chloride
