氨基蒽醌聚氨酯紫色微球粒径调控及形貌

采用1，4-二氨基蒽醌作为发色体，与异佛尔酮二异氰酸酯反应生成紫色预聚物，与聚乙二醇600通过界面聚合法制备了氨基蒽醌紫色聚氨酯微球。考察了乳化剂种类、用量、乳化速度、发色体用量对微球粒径的影响。结果表明：与聚氧乙烯辛基苯酚醚-10、失水山梨醇单油酸酯聚氧乙烯醚（Tween80）和失水山梨糖醇单油酸酯（Span80）相比，十二烷基苯磺酸钠（SDBS）乳化剂更适合用于聚氨酯球的制备。SDBS质量分数3.5%（以油相为基准）的粒径分布最窄，微球粒径在350nm左右。微球平均粒径随乳化速度增大而减小，在8000r/min粒径分布最集中。发色体在壳层体系中加入量为1mmol时粒径分布系数最小，平均粒径在500nm。通过SEM和TEM表征，结果显示：聚氨酯微球粒径在500nm左右，表面光滑的球形，内部呈空心结构。氨基蒽醌聚氨酯紫色微球印花织物颜色性能优异，且具有较高色牢度。

Particle size regulation and morphology of amino-anthraquinone-polyurethane microparticle

1,4-Diaminoanthraquinone (DA) as chromogen was reacted with isophorone diisocyanate (IPDI) to form a purple prepolymer, followed by interfacially polymerized with polyethylene glycol 600 to prepare amino-anthraquinone polyurethane microspheres (DAPM). The effects of emulsifier type, emulsifier dosage, emulsifying speed and chromogen dosage on the particle size of microspheres were investigated. The results showed that sodium dodecylbenzenesulphonate (SDBS) emulsifier was more suitable for the preparation of polyurethane microspheres than octaphenyl polyoxyethyiene-10 (OP-10), polyoxyethylene sorbitan monooleate (Tween80) and sorbitan monooleate (Span80). When SDBS mass fraction was 3.5% (based on the oil phase), the particle sizes of the microspheres were all around 350 nm with the narrowest particle size distribution. The average particle size decreased with the increase of emulsifying speed, when the emulsifying speed was 8000 r/min, the particle size distribution was the most concentrated. When the chromogen dosage was 1 mmol, the prepared microspheres exhibited the narrowest distribution with a particle size of 500 nm. SEM and TEM observations revealed that the as-prepared amino-anthraquinone polyurethane microspheres had a particle size of about 500 nm with smooth spherical surface and hollow internal structure. The fabric printed with DAPM had excellent color properties and color fastness.