聚乳酸/聚酮共混纤维分散染料染色性能

doi:10.13475/j.fzxb.20211206506

纺织学报 ›› 2022, Vol. 43 ›› Issue (05): 12-17.doi: 10.13475/j.fzxb.20211206506

• 特约专栏:第十一届中国纺织学术年会专家观点 • 上一篇下一篇

聚乳酸/聚酮共混纤维分散染料染色性能

陈鹏¹(), 廖世豪¹^,²^,³, 沈兰萍², 王瑄³, 王鹏¹

1.中国科学院宁波材料技术与工程研究所, 浙江宁波 315201
2.西安工程大学纺织科学与工程学院, 陕西西安 710048
3.浙江纺织服装职业技术学院纺织学院, 浙江宁波 315211

收稿日期:2021-12-30 修回日期:2022-02-21 出版日期:2022-05-15 发布日期:2022-05-30
作者简介:陈鹏(1979—),男,研究员,博士。主要研究方向为新型化学纤维。E-mail: pchen@nimte.ac.cn。
基金资助:
国际纯粹与应用化学联合会可行性研究项目(A00305);国际纯粹与应用化学联合会可行性研究项目(A00316)

Dyeing properties of polylactic acid/polyketone fibers with disperse dye

CHEN Peng¹(), LIAO Shihao¹^,²^,³, SHEN Lanping², WANG Xuan³, WANG Peng¹

1. Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201,China
2. School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an, Shanxi 710048, China
3. School of Textiles, Zhejiang Fashion Institute of Technology, Ningbo, Zhejiang 315211, China

Received:2021-12-30 Revised:2022-02-21 Published:2022-05-15 Online:2022-05-30

摘要/Abstract

摘要：

为了改善聚乳酸(PLA)纤维的染色性能,采用分散蓝79对聚乳酸/聚酮(PLA/PK)共混纤维染色,探究了染色温度、时间、pH值等因素对染色性能的影响,分析了染色动力学与热力学行为。研究得出分散蓝79对PLA/PK共混纤维染色的优化工艺:染色温度为110 ℃,染色时间为40 min,pH值为5。结果表明:纤维染色K/S值随PLA/PK共混纤维中PK含量的增加而略有提升,共混纤维染色的耐摩擦色牢度和耐皂洗色牢度保持在3级以上;与纯PLA纤维相比,分散蓝79染料在PLA/PK共混纤维(4%PK)上的平衡吸附量增大,半染时间缩短,扩散系数增大,具有比聚乳酸更好的染色性能;通过拟合计算发现分散蓝79染料对纯PLA纤维、PLA/PK共混纤维(4%PK)的吸附等温线为Nernst与Langmuir复合型曲线。

关键词: 聚乳酸纤维, 聚乳酸/聚酮共混纤维, 分散染料, 动力学, 染色, 热力学

Abstract:

To improve dyeing performance of polylactic acid (PLA) fibers, Disperse Blue 79 was used to dye polylactic acid/polyketone (PLA/PK) blend fibers. The influence of dyeing temperature, time, pH value and other factors were investigated, with the dyeing kinetics and thermodynamic behavior analyzed. The optimal processing parameters were identified, which are dyeing temperature of 110 ℃, holding time of 40 min, and pH value of 5. With increased PK content, the K/S value of the blend fibers increases significantly and the color fastness to rubbing and soaping remains over level 3,the equilibrium adsorption amount of Disperse Blue 79 dye on the blend fiber increases, the half dyeing time decreases, and the diffusion coefficient increases, further confirming the improved dyeing properties of the blend fiber. The adsorption isotherms of Disperse Blue 79 dye to PLA fiber and blended fibers are calculated by fitting, showing a composite curve of Nernst and Langmuir.

Key words: polylactic acid fiber, polylactic acid/polyketone blend fiber, disperse dye, kinetics, dyeing, thermodynamics

中图分类号:

TS190.6

陈鹏, 廖世豪, 沈兰萍, 王瑄, 王鹏. 聚乳酸/聚酮共混纤维分散染料染色性能[J]. 纺织学报, 2022, 43(05): 12-17.

CHEN Peng, LIAO Shihao, SHEN Lanping, WANG Xuan, WANG Peng. Dyeing properties of polylactic acid/polyketone fibers with disperse dye[J]. Journal of Textile Research, 2022, 43(05): 12-17.

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纤维编号	耐摩擦色牢度		耐皂洗色牢度
纤维编号	干	湿	变色	沾色
B0	4~5	4~5	4~5	4
B1	4~5	4~5	3	4
B2	4~5	4~5	3	4~5
B4	5	4~5	3~4	4~5

纤维编号	拟合方程	线性拟合度R²	平衡吸附量/(mg·g^-1)	染色速率常数/(min·g·mg^-1)	半染时间/min
B0	y=0.055 3x+0.906 4	0.994 6	18.083	0.003 4	16.265
B4	y=0.042 7x+0.648 4	0.991 2	23.43	0.002 8	15.247

聚乳酸/聚酮共混纤维分散染料染色性能

Dyeing properties of polylactic acid/polyketone fibers with disperse dye

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