期刊
JOURNAL OF CLEANER PRODUCTION
卷 197, 期 -, 页码 1262-1267出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jclepro.2018.06.202
关键词
Supercritical carbon dioxide; Dyeing; Alkyl curcumin; Natural fabric; Solubility
资金
- National Natural Science Foundation of China [21706021, 21606032]
- Department of Education of Liaoning Province [2016J059]
An obvious limitation of curcumin is its inability to achieve a deep color depth, which is caused by curcumin's low supercritical carbon dioxide solubility. In this study, alkyl groups (ethyl, butyl, hexyl or octyl) were introduced to curcumin to achieve better solubility and dyeing ability. The results showed that both the solubility and dyeing ability of curcumin increased after alkyl grafting. The best dyeing ability was achieved by using butyl curcumin to dye silk in the presence of dimethylsulfoxide (DMSO). This phenomenon is closely related not only to the high solubility of butyl curcumin but also to the increase in the silk specific surface area, resulting from the synergistic effects of supercritical carbon dioxide and dimethylsulfoxide. (C) 2018 Elsevier Ltd. All rights reserved.
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