摘要
为研究反胶束体系中蛋白酶对羊毛的作用,制备了基于吐温-80/环己烷的蛋白酶反胶束体系,研究表面活性剂用量、n(H2O)/n(Tween-80)、处理温度和时间对羊毛蛋白酶减量效果的影响。试验结果表明,环己烷、正丁醇及吐温-80的体积比为5∶1∶1,n(H2O)/n(Tween-80)为18,55℃条件下反应4 h时羊毛织物减量率较高。与蛋白酶用量同为2%(o.w.f)条件下的水相处理相比,反胶束体系中处理的羊毛减量率略低,但上染速率较高,表明反胶束体系中酶解反应可能主要发生在纤维鳞片层。SEM照片显示反胶束体系中处理的羊毛与水相条件下相比,其试样鳞片去除效果相近,后者处理的羊毛纤维损伤略高。
The protease reverse micelle system based on Tween-80/cyclohexane was prepared to study its effect on wool. The influence of surfactant dosage, n （ H2O） / n （Tween-80）, temperature and duration of treatment on the weighting loss percentage of the wool in the protease reverse micelle system was investigated. The results indicated that the efficiency of enzymatic degradation of wool fabrics reached the maximum under the optimum condition as follows ： v （cyclohexane） ： v （ alcohol ） ： v （ Tween-80 ） of 5 ： 1 ： 1, n （ H20 ） / n （ Tween-80 ） of 18, incubating temperature of 55 ℃ and time of 4 h. Compared with the samples treated in water system at the same protease concentration, the wool fabric incubated in reverse micelles achieved lower weight loss but higher dye-uptake rate. This indicated the enzymatic reaction in micellar system mainly occurred in the cuticle scales of wool fibers. SEM images implied similar removals of wool scales obtained in reverse micelles and water systems, but the eroding degree of wool scales in water system seemed deeper.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2009年第11期76-80,87,共6页
Journal of Textile Research
基金
高技术研究发展计划(863计划)项目(2008AA02Z203)
关键词
反胶束
蛋白酶
羊毛
减量率
上染速率
纤维损伤
reverse micelle
protease
wool
weight loss ratio
dye-uptake rate
fiber damage
