活性橙13溶液粘度的影响因素及变化规律

Influence factors and change law of Reactive Orange 13 solution viscosity

考察了活性橙13溶液质量浓度、溶液所处条件(温度、pH)及添加剂(助溶剂、表面活性剂、电解质)对染料溶液粘度的影响及粘度变化规律。结果表明:染液质量浓度低于50 g/L时,染液粘度随质量浓度提高而增大、随温度升高而降低,当染液质量浓度超过50 g/L时,染液粘度发生不规则变化;介质pH在染料分子等电点附近时染液粘度增加;助溶剂可降低高质量浓度染液粘度,其降低程度依大小顺序为:TM-1>尿素>丙三醇>己内酰胺;阴离子表面活性剂十二烷基苯磺酸钠和非离子表面活性剂AEO-9对染料溶液粘度的影响较小;电解质对染液粘度的影响与染料质量浓度和电解质质量浓度有关。

The influence of Reactive Orange 13 solution concentration, solution conditions （temperature, pH） and additives （cosolvent, surfactants, electrolytes） on dye solution viscosity and viscosity change law are investigated. It is found that the viscosity of solution increases with the rising of dye concentration and decreases with the temperature risesrespectively when dye solution concentration is lower than 50 g/L. The viscosity of solution changed irregularly when dye solution concentration is higher than 50 g/L. When medium pH is in the vicinity of the dye molecules isoelectric point, solution viscosity increased;the cosolvent can reduce the dye solution viscosity of the high concentration dye liquor, the decrease degree in order is as follows： TM-1 〉 urea and glycerol 〉 caprolactam; anionic surface active agent twelve sulfonate and nonionic surfactant AEO-9 have little effect on the dye solution viscosity; The effect of electrolyte on dye solution viscosity is concerned with dye mass concentration and electrolyte mass concentration.