Preparation of concrete water reducer via fractionation and modification of lignin extracted from pine wood by formic acid.
文献类型：期刊论文
| 作者 | Shuangyang Li, Zhenqiu Li, Yuedong Zhang, Chao Liu, Guang Yu*, Bin Li*, Xindong Mu, Hui Peng. |
| 刊名 | ACS Sustainable Chemistry & Engineering,
 |
| 出版日期 | 2017-03-27 |
| 卷号 | 5页码:4214-4222 |
| 关键词 | Lignin Water Reducer Organic Solvents Fractionation Modification Formic Acid |
| DOI | 10.1021/acssuschemeng.7b00194 |
| 文献子类 | Article |
| 英文摘要 | In this work, a lignin-based concrete water reducer was prepared through organic solvent fractionation and chemical modification of lignin extracted from pine wood with formic acid. The fractionated lignin with different molecular weight was modified via oxidation−sulfomethylation (OS), and the effects of fractionation on the performance of lignin-based concrete water reducer were investigated. It was found that the sulfonation degree (SD) of the fractionated lignin after OS was clearly higher compared to the unfractionated lignin, and the SD of fractionated lignin was linearly correlated with its workability (i.e., the fluidity of cement paste) based on the results obtained. By adding the same quantity of modified lignin-based concrete water reducer, the fluidity of cement paste with the fractionated lignin (by pure acetone) after OS modification was 21% higher than the sulfonated FAL (M-FAL) without fractionation. The organic solvents used in this study could be easily recovered and reused. Thus, the whole fractionation process was sustainable. In addition, the structure changes of lignin samples before and after |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/9891]  |
| 专题 | 青岛生物能源与过程研究所_材料生物技术研究中心 |
| 作者单位 | 中国科学院青岛生物能源与过程研究所(2)青岛科技大学 |
| 推荐引用方式 GB/T 7714 | Shuangyang Li, Zhenqiu Li, Yuedong Zhang, Chao Liu, Guang Yu*, Bin Li*, Xindong Mu, Hui Peng.. Preparation of concrete water reducer via fractionation and modification of lignin extracted from pine wood by formic acid.[J]. ACS Sustainable Chemistry & Engineering,,2017,5:4214-4222. |
| APA | Shuangyang Li, Zhenqiu Li, Yuedong Zhang, Chao Liu, Guang Yu*, Bin Li*, Xindong Mu, Hui Peng..(2017).Preparation of concrete water reducer via fractionation and modification of lignin extracted from pine wood by formic acid..ACS Sustainable Chemistry & Engineering,,5,4214-4222. |
| MLA | Shuangyang Li, Zhenqiu Li, Yuedong Zhang, Chao Liu, Guang Yu*, Bin Li*, Xindong Mu, Hui Peng.."Preparation of concrete water reducer via fractionation and modification of lignin extracted from pine wood by formic acid.".ACS Sustainable Chemistry & Engineering, 5(2017):4214-4222. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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