超声波处理对羊毛纤维润湿性的影响

Effect of ultrasonic treatment on the wettability of wool fibers

为改善羊毛纤维的润湿性能,实现羊毛纤维功能化的需要,讨论水浴超声波、超声波与渗透剂共浴、渗透剂浸渍3种预处理对羊毛纤维润湿性的影响。运用单纤维动态接触角张力仪和扫描电子显微镜对处理前后羊毛纤维的润湿性和表面形态进行表征。实验结果表明:经过3种方式预处理后精纺呢绒的润湿性都有不同程度地改善,其中采用超声波与渗透剂共浴处理的精纺呢绒,润湿性改善最为明显;经过超声波处理的羊毛纤维,在其鳞片层表面产生了刻蚀效果或鳞片层局部出现了剥离。

In order to improve the wettability and add additional functionality to wool fibers,the effect of the three pretreatments ultrasonic water bath,ultrasonic and penetrating agent water bath,and impregnation with penetrating agent on the wettabiliy of wool fiber was investigated.The wettability and the surface morphology of the wool fibers before and after treatment were characterized with single-fiber dynamic contact angle tension meter（CDCA） and scanning electron microscope（SEM）.The experimental results indicated that the wettability of worsted fabrics subjected to the three pretreatments respectively was all improved more or less,and the improvement of the wettability of worsted fabrics treated with ultrasonic and penetrating agent water bath was most significantly.SEM indicated that the surface scale layer on the wool fibers was etched and partly stripped after ultrasonic treatment.