腈纶低温染色促进剂对纱线结构和性能的影响  

The Effect of Low Temperature Dyeing Accelerants on Structure and Properties of Acrylic Fiber

作　　者：杜旭宜[1] 郑今欢[1,2] 申屠艳艳[1] 

机构地区：[1]浙江理工大学先进纺织材料与制备技术教育部重点实验室,杭州310018 [2]浙江理工大学生态染整技术教育部工程研究中心,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2011年第1期27-33,共7页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：浙江省重大科技专项(2008C01069-4)

摘　　要：针对3种自制腈纶低温染色促进剂,通过测定阳离子染料对腈纶的上染速率曲线及经染色促进剂处理的纱线的断裂强力、纤维膨胀率、纤维热稳定性等,研究低温染色促进剂对腈纶染色性能及其它理化性能的影响。此外,通过X-射线衍射法和傅立叶红外光谱法分析低温染色促进剂对腈纶准结晶度的影响,结合纤维的膨胀率,探讨了腈纶低温染色的机理。结果表明:在腈纶85℃染色过程中,3种染色促进剂均可在一定程度上降低腈纶准结晶区的比重,但对腈纶的断裂强力及染色温度下的热稳定性没有明显影响。染色促进剂Ⅲ基本能实现腈纶纱线的85℃染色,并减少高温染色对腈纶纱线的损伤。The breaking strength,expansion ratio and thermal stability of acrylic fiber,the dyeing rate curves dyed with cationic dyes are investigated to study the dyeability and other physical chemical properties of acrylic fibers,which are treated by three kinds of low temperature dyeing accelerants made by ourselves.Furthermore,the quasi crystallinity of the acrylic fiber that is researched by X-ray diffraction（XRD） and infrared spectroscopy and expansion ratio of acrylic fiber are also considered to study the mechanism of low temperature dyeing of acrylic fiber.The results show that all the three accelerants can reduce the proportion of quasi crystalline area of acrylic fiber in different extent when dyeing process is at 85℃,but both the breaking strength and the thermal stability at the dyeing temperature have little effect by the accelerants.In summary,the accelerant Ш can be used to maintain the low temperature dyeing of acrylic fiber,which also can reduce the damage of the fiber when compared with the high temperature dyeing.

关 键 词：低温染色 腈纶纱线 染色促进剂 准结晶度 

分 类 号：TS193.2[轻工技术与工程—纺织化学与染整工程]