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| Effects of water content on the dissolution behavior of wool keratin using l-ethyl-3-methylimidazolium dimethylphosphate | |
| Zhang Zhenlei1; Zhang Xiaochun1; Nie Yi1; Wang Hui1; Zheng Shuangshuang2; Zhang Suojiang1 | |
| 2017 | |
| Source Publication | Science China. Chemistry
 |
| ISSN | 1674-7291 |
| Volume | 60Issue:7Pages:934 |
| Abstract | Ionic liquids (ILs) are eco-friend and recyclable solvents for dissolution of wool keratin,and water is often used as antisolvent to regenerate keratin from IL solution. To recycle the ILs,removing water is the necessary step. However,complete removal of the water is energy-intensive and costly. The water in ionic liquids would change the physicochemical properties and cluster structures of the IL and further affect its dissolution behavior on keratin. Here,1 -ethyl-3-methylimidazolium dimethylphosphate (EmimDMP) was used for experiments due to its good performance on dissolving keratin. The experimental and simulation results showed that the dissolving capability of EmimDMP was decreased and the interactions between cation and anion became weaker with water concentration increasing. Furthermore,the dissolution time of wool keratin in EmimDMP increased with water content rising. At the same time, the effect of water in ILs on the secondary structure distribution and thermal stability of regenerated keratin was not obvious. In this work,by taking the structures of EmimDMP,keratin dissolution time and properties of the regenerated keratin into consideration, a balanced range of water content in EmimDMP was determined, which could not only reduce recycling cost but also not affect the dissolution behavior of the IL. |
| Keyword | keratin ionic liquids water recycle |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/45060 |
| Collection | 中国科学院过程工程研究所 |
| Affiliation | 1.中国科学院过程工程研究所 2.Zhengzhou Institute of Emerging Technology Industries |
| First Author Affilication | 中国科学院过程工程研究所 |
| Recommended Citation GB/T 7714 | Zhang Zhenlei,Zhang Xiaochun,Nie Yi,et al. Effects of water content on the dissolution behavior of wool keratin using l-ethyl-3-methylimidazolium dimethylphosphate[J]. Science China. Chemistry,2017,60(7):934. |
| APA | Zhang Zhenlei,Zhang Xiaochun,Nie Yi,Wang Hui,Zheng Shuangshuang,&Zhang Suojiang.(2017).Effects of water content on the dissolution behavior of wool keratin using l-ethyl-3-methylimidazolium dimethylphosphate.Science China. Chemistry,60(7),934. |
| MLA | Zhang Zhenlei,et al."Effects of water content on the dissolution behavior of wool keratin using l-ethyl-3-methylimidazolium dimethylphosphate".Science China. Chemistry 60.7(2017):934. |
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