Study on solubility of disperse dyes in supercritical carbon dioxide fluid

被引：0
|
作者：
Han Z. [1 ,2 ]
Wu W. [1 ,2 ]
Wang J. [3 ]
Xu H. [1 ,2 ,4 ]
Mao Z. [1 ,2 ,4 ,5 ]
机构：
[1] Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, Donghua University, Shanghai
[2] College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai
[3] Qingdao Jifa Group Co., Ltd., Qingdao
[4] Innovation Center for Textile Science and Technology, Donghua University, Shanghai
[5] National Engineering Research Center for Dyeing and Finishing of Textiles, Donghua University, Shanghai
来源：
Fangzhi Xuebao/Journal of Textile Research | 2022年 / 43卷 / 01期
关键词：
Disperse dye; Equation of state; Molecular dynamics simulation; Solubility; Supercritical carbon dioxide fluid staining;
D O I：
10.13475/j.fzxb.20210904808
中图分类号：
学科分类号：
摘要：
To better screen disperse dyes suitable for supercritical carbon dioxide (ScCO2) fluid dyeing, a prediction method for assessing disperse dye solubility in supercritical CO2 fluid was established based on the use of state equation method, the group contribution method and computational chemistry method, achieving different conditions and different dye structures of disperse dye solubility in supercritical CO2 fluid. The results show that different working conditions affect the solubility of Disperse Blue 79 dyes, and lower temperature and higher pressure are more favorable to the dissolution process. From the perspective of molecular structure, the solubility of anthraquinone disperse dyes in supercritical CO2 fluid is lower than that of azo dyes because the anthraquinone dyes have better molecular flatness and are conducive to π-π stacking. The solubility of disperse dyes can be effectively improved by decreasing the interaction between molecules within dyes or increasing the interaction between dyes and ScCO2 fluid. It was concluded that introducing alkyl groups or groups containing C=O into the molecular structure of dye can improve the solubility of dye in ScCO2 fluid. © 2022, Periodical Agency of Journal of Textile Research. All right reserved.
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页码：153 / 160
页数：7
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