甲壳素纤维及其混纺纱性能研究

Study on the Chitin Fiber and its Blended Yarn's Performance

基于甲壳素纤维基本性能介绍,先对甲壳素纤维的形态结构和红外光谱进行测试,再对甲壳素、棉(20∶80)混纺纱强度、条干均匀度、纱线捻度、纱线含湿量、纱线耐热性、纱线耐酸碱性等进行测试。结果表明,甲壳素纤维横截面呈圆形或近似圆形,纵向光滑且取向度较高,含有酰胺基、羰基和羟基等官能团;混纺纱的回潮率和含水率分别为7.52%和7.23%;纱线捻度均匀、适中,不匀率较低,纱线条干较均匀;适合在弱酸、弱碱和中性条件下加工;耐干热性能较差,耐湿热性能较好。甲壳素纤维各项服用性能优良,适合针织服饰的开发。

Based on the basic properties of chitin, the morphology structure and infrared spectrum were tested at first. Then the strength, evenness, yarn twist, yarn moisture content, yarn heat resistance and yarn acid resistance were tested which consists of chitin and cotton （20：80）. The results show that the cross section of chitin fiber is a circular or nearly circular, smooth vertical and a higher degree of orientation, and it contains amide group, carbonyl group, hydroxyl group and other functional groups; the moisture regain and moisture content of blended yarn are 7.52% and 7.23% respectively; And the yarn twist unevenness is uniform, moderate, low rate of yarn uniform. The blended yarn is suitable for weak acid, weak alkaline and neutral conditions of processing, the temperature is not too high. The chitin fiber knitted fabrics has excellent wearing properties and good heahhcare function.