文献类型：期刊文献

中文题名：两亲共聚物SMASS对水煤浆流变学性能的影响

英文题名：Effect of Amphiphilic Copolymer SMASS on Rheological Properties of Coal-Water Slurry

作者：孟奎[1];李莉[1];郭旭虹[1]

机构：[1]华东理工大学化工学院,上海200237

年份：2016

卷号：42

期号：3

起止页码：314

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2014】；CSCD:【CSCD2015_2016】；

基金：中石化南京化学工业有限公司对本项目的资助

语种：中文

中文关键词：水煤浆;流变学;两亲共聚物;分散剂

外文关键词：coal-water slurry; rheology; amphiphilic copolymer; dispersant

摘要：合成了一系列接枝率不同的两亲性共聚物分散剂——对氨基苯磺酸接枝马来酸酐-苯乙烯共聚物(SMASS),并用氢核磁共振及红外光谱对其结构进行了表征。通过测量接触角,发现该分散剂能有效改善煤表面的亲水性;运用高级旋转流变仪研究了水煤浆自身浓度、分散剂及其用量对水煤浆流变性能及稳定性的影响。实验结果表明分散剂能有效降低水煤浆的表观黏度和屈服应力,大幅提高水煤浆的稳定性,并且发现接枝率为0.28的SMASS1效果最好。进一步对比了接枝率均为0.50左右的SMASS2(接枝率为0.49)和氨基萘磺酸接枝马来酸酐-苯乙烯共聚物SMANS2(接枝率为0.50),及一种木质素类商用添加剂(AD)对水煤浆降黏增稳的影响,发现SMASS2的综合效果最好。由此证明,SMASS是一种新型有效且相对廉价的水煤浆分散剂,具有良好的工业应用前景。
As dispersants of coal water slurry （CWS）, a series of amphiphilic copotymers （SMASS） with different grafting degrees of p-aminobenzene sulfonic acid to styrene maleic anhydride copolymer backbone were synthesized and characterized by 1H-NMR and FT-IR. The hydrophilicity of coal surface was improved by dispersants according to the contact angle data. The effects of coal concentration of CWS, dispersants with different grafting ratios and dosage on the rheological properties and the stability of CWS were investigated. Experimental results showed that the rheological properties and stability of CWS can be improved by SMASS, and when the grafting ratio is 0.28,SMASS1 shows the best performance. Compared to poly（styrene-co-maleic anhydride naphthylamide sulfonate） （SMANS2 with grafting ratio of 0.50） and a commercial lignin dispersant （AD）, SMASS2 （with grafting ratio of 0. 49 ） performs the best. It is confirmed that SMASS is a new type of effective and relatively inexpensive dispersant with a great potential for industrial application.