摘要
以超声分散的方法在二氯甲烷溶剂中制备硬段含羧基的水性聚氨酯 (PU)纳米空白微球 ,并分别制得包裹不同含量染料油溶红 2 4的PU超微囊 ,测试表明 :随着染料投入量的增加 ,超微囊粒径增大 ,呈双峰分布 ,约在 10 0～ 3 0 0nm之间。在超微囊体系内染料存在 2种形态 :无晶形态和有序晶形态。PU阻碍了染料分子的聚集结晶。
In this paper,self-dispersion method through ultrasonic dispersion process was selected to synthesize blank polyurethane nano-sphere in dichloromethane.At the same time,PU-Dye supercapsules encapsulating different oil red 24 content were prepared.The result showed that supercapsules diameters were increasing with addition of dye content,showing two-peak distribution,particle sizes of dye supercapsules were between 100nm and 300nm or so.There were two shapes (amorphous and crystal state) in supercapsules.It was inferred PU encumbered dyes crystal process.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2004年第2期48-50,共3页
Journal of Textile Research
