染色对PTT纤维聚集态结构的影响  

Effect of dyeing conditions on aggregation structure of PTT filament

作　　者：陈克权[1] 

机构地区：[1]中国石化上海石化股份有限公司技术中心,上海200540

出　　处：《合成纤维工业》2005年第6期9-11,共3页China Synthetic Fiber Industry

摘　　要：研究了染色温度和时间对PTT纤维上染率和聚集态结构的影响。结果表明，随染色温度升高，PTT纤维的上染率提高，最佳染色温度为110℃；在110℃时，染料分子容易进入纤维的非晶区，染色开始时纤维的上染率明显升高，染色时间对纤维上染率的影响不大；在90℃时，染色前期PTT纤维的上染率较低，随着染色时间的延长，纤维的结晶度和晶区取向降低，上染率明显升高；在130℃时，纤维的冷结晶过程容易发生，大分子链排列紧密，纤维的上染率降低。The effect of dyeing temperature and time on the dye up-take and aggregation structure of PTT filament was studied. The results showed that the dye up-take was increased while elevating the dyeing temperature, and the optimal dyeing temperature was 110℃. It was easy for dyestuff molecules to enter into the amorphous region at 110℃, and the dye up-take rose markedly at the beginning of dyeing stage, which indicated that the dyeing time has little effect on the dye up-take. The dye up-take was low at the beginning of dyeing stage and was greatly increased while prolonging the dyeing time at 90℃ owing to low crystallinity and orientation in crystalline region. The cool crystallization occurred easily at 130℃, leading to tight macromolecules arrangement and some reduction in dye up-take.

关 键 词：聚对苯二甲酸丙二醇酯纤维 上染率 结晶 取向 结构 

分 类 号：TS193.8[轻工技术与工程—纺织化学与染整工程]