变形纱成纱熵变和膨松性能的关系  

Relationship between texturing entropy changing and bulk property of textured yarn

作　　者：姜岩[1] 王业宏[1] 王善元[2] 

机构地区：[1]温州大学服装学院,浙江温州325035 [2]东华大学纺织学院,上海201620

出　　处：《纺织学报》2009年第7期19-22,共4页Journal of Textile Research

基　　金：浙江省教育厅科研项目(20070536)

摘　　要：纱线成形过程主要以纤维或丝束空间排列秩序性的变化为特征,因而存在着熵变现象,大多数变形加工过程具有熵增加的特点。熵是状态函数,因此变形纱熵变和其膨松性能关系密切,理论推导表明,成纱熵变和膨松指数的对数成正比,与膨松度呈正相关关系;变形纱紊乱度值与膨松指数在数值上相等,与膨松度呈正相关,实验结果与上述结论一致。由于变形纱紊乱度在数值上与纱线膨松指数值相等,因此可以通过测定纱线膨松指数的方法测量变形纱线的紊乱度值,进而量化研究成纱熵变的大小。Because the forming of yam is characterized by the changes of the space arrangement orderliness of the short fibers or the filaments, so there exists the entropy change phenomenon, and in most cases of texturing there is an increasing of the system entropy. The entropy is a state function, thus the entropy changing of the textured yarn has a close relationship with its bulk. Further theoretical derivation has showed that the texturing entropy changing is in proportion to the log of bulk index, as well as to the bulky; the disordering degree shares the same value with bulk index, so it also goes directly with the bulky, all experimental values are in good agreement with this results. Because textured yarn has a pair of equal valued disordering degree and bulk index, the former can be measured by testing the bulk index of it, further, the texturing entropy changing can be studied in quantization.

关 键 词：熵 变形纱 成纱熵变 膨松度 紊乱度 

分 类 号：TS106.4[轻工技术与工程—纺织工程]