Synergistic inhibition effect and mechanism of polycation and polyanion on colloidal silica
Synergistic inhibition effect and mechanism of polycation and polyanion on colloidal silica
复制标题
聚阳离子和聚阴离子对胶体二氧化硅的协同抑制作用及机理
DOI：
10.1016/j.colsurfa.2020.125701
复制
发表时间：
2020-10
期刊：
影响因子：
--
通讯作者：
Fengting Li
中科院分区：
文献类型：
--
作者：
Mingyue Tan;Li Fang;Bingru Zhang;Yankai Zhao;Xianqing Meng;Fengting Li
反渗透（RO）膜的硅阻可以通过添加阻垢剂来处理.聚阳离子己二酸/端胺聚醚D230/二乙烯三胺共聚物（AA/AT/DE）是一种有效的硅垢抑制剂。这种阻垢剂的缺点是在抑制过程中溶液中出现少量的Si O 2-AA/AT/DE白色不溶性絮状物。在本研究中，聚环氧琥珀酸（PESA）的加入，以解决这个问题。通过静态筛选试验，考察了不同组合的阻垢效果。采用硅钼酸盐分光光度法测定二氧化硅的含量。在一定剂量范围内（< 50 ppm），PESA的引入可以提高AA/AT/DE的缓蚀性能，但当PESA的浓度增加到50 ppm时，对AA/AT/DE的缓蚀性能产生负面影响。基于Zeta电位和原子力显微镜（AFM）形貌分析，重点研究了聚阳离子对SiO2粒子形成的影响以及AA/AT/DE和PESA协同作用的机理。
The silica inhibition of Reverse osmosis (RO) membrane can be treated by adding scale inhibitor. The polycation adipic acid/amine-terminated polyethers D230/diethylenetriamine copolymer (AA/AT/DE) was found to be an effective silica scale inhibitor. The drawback of this scale inhibitor is that small amounts of S i O 2-AA/AT/DE white insoluble floc appear in the solution during the inhibition process. In this study, polyepoxysuccinic acid (PESA) was added to solve this problem. The scale inhibition efficiency of different combinations was tested by static screening tests. The content of silicon dioxide was determined by silicomolybdate spectrophotometric method. In a certain dose range (< 50 ppm), the introduction of PESA can improve the inhibition performance of AA/AT/DE, while, it will have a negative impact when the concentration of PESA was increased to 50 ppm. Based on zeta potential and atomic force microscopy (AFM) topographical analyses, the effect of polycation on the formation of silica particles and the mechanism of the synergistic effect of AA/AT/DE and PESA were placed attention on.
登录
查看更多内容
影响因子：
9.9
作者：
R. Y. Ning
通讯作者：
R. Y. Ning
影响因子：
9.9
作者：
E. Darton
通讯作者：
E. Darton
影响因子：
9.9
作者：
C. V. D. Lisdonk;J. V. Paassen;J. Schippers
通讯作者：
C. V. D. Lisdonk;J. V. Paassen;J. Schippers
影响因子：
3.5
作者：
S. Sjöberg
通讯作者：
S. Sjöberg
影响因子：
9.9
作者：
R. Sheikholeslami;I. Al-Mutaz;T. Koo;A. Young
通讯作者：
R. Sheikholeslami;I. Al-Mutaz;T. Koo;A. Young