Preparation of Concrete Superplasticizer by Oxidation-Sulfomethylation of Sodium Lignosulfonate

CORC > 青岛生物能源与过程研究所 > 中国科学院青岛生物能源与过程研究所 > 绿色化学催化团队

	Preparation of Concrete Superplasticizer by Oxidation-Sulfomethylation of Sodium Lignosulfonate
	Yu, Guang ; Li, Bin ; Wang, Haisong 1; Liu, Chao ; Mu, Xindong
刊名	BIORESOURCES
	2013
卷号	8 期号:1 页码:1055-1063
关键词	Sodium lignosulfonate Concrete superplasticizer Peroxyacetic acid Black liquor
中文摘要	Modification of sodium lignosulfonate (SLS) via combined oxidation-sulfomethylation was employed to prepare concrete superplasticizer. It was found that the oxidation of SLS by peroxyacetic acid facilitated the subsequent sulfomethylation. After modification, both the molecular weight and sulfo group content were significantly increased, and thus the performance of SLS as water reducer was improved. With the water to cement ratio at 0.4 and 0.3% (w/w) modified SLS, the fluidity of cement paste could reach 185 mm, which was 15% higher than that with unmodified SLS. It was also comparable to the performance of commercial naphthalene superplasticizer under the same conditions.
英文摘要	Modification of sodium lignosulfonate (SLS) via combined oxidation-sulfomethylation was employed to prepare concrete superplasticizer. It was found that the oxidation of SLS by peroxyacetic acid facilitated the subsequent sulfomethylation. After modification, both the molecular weight and sulfo group content were significantly increased, and thus the performance of SLS as water reducer was improved. With the water to cement ratio at 0.4 and 0.3% (w/w) modified SLS, the fluidity of cement paste could reach 185 mm, which was 15% higher than that with unmodified SLS. It was also comparable to the performance of commercial naphthalene superplasticizer under the same conditions.
学科主题	绿色化学催化
WOS标题词	Science & Technology ; Technology
类目[WOS]	Materials Science, Paper & Wood
研究领域[WOS]	Materials Science
关键词[WOS]	CALCIUM LIGNOSULFONATE ; WATER REDUCER ; LIGNIN ; HYDROXYMETHYLATION ; ULTRAFILTRATION ; PERFORMANCE ; DISPERSANT ; CEMENT
收录类别	SCI
语种	英语
WOS记录号	WOS:000314632300086
公开日期	2014-03-24
内容类型	期刊论文
源URL	[http://ir.qibebt.ac.cn:8080/handle/337004/1666]
专题	青岛生物能源与过程研究所_绿色化学催化团队
作者单位	1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China 2.Chinese Acad Sci, Key Lab Biofuels, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Yu, Guang,Li, Bin,Wang, Haisong,et al. Preparation of Concrete Superplasticizer by Oxidation-Sulfomethylation of Sodium Lignosulfonate[J]. BIORESOURCES,2013,8(1):1055-1063.
APA	Yu, Guang,Li, Bin,Wang, Haisong,Liu, Chao,&Mu, Xindong.(2013).Preparation of Concrete Superplasticizer by Oxidation-Sulfomethylation of Sodium Lignosulfonate.BIORESOURCES,8(1),1055-1063.
MLA	Yu, Guang,et al."Preparation of Concrete Superplasticizer by Oxidation-Sulfomethylation of Sodium Lignosulfonate".BIORESOURCES 8.1(2013):1055-1063.