Effect of surfactant on zeta potential and rheology behavior of methylene bis (thiocyanate) suspension concentrate

Jianfeng Hu; Yan Cai; Shan Lu; Jiezhen Xu; Zhongrun Yun; Jianheng Huang; Yuliang Wen; Jinqing Qu

doi:10.1016/j.cjche.2016.08.008

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Effect of surfactant on zeta potential and rheology behavior of methylene bis (thiocyanate) suspension concentrate

Fluid Dynamics and Transport Phenomena | Updated：2026-01-06

- Effect of surfactant on zeta potential and rheology behavior of methylene bis (thiocyanate) suspension concentrate
- Chinese Journal of Chemical Engineering Vol. 25, Issue 5, Pages: 541-546(2017)
- Affiliations：
  
  1. School of Chemistry and Chemical Engineering, South China University of Technology,Guangzhou,China,510640
  2. School of Materials Science and Engineering, South China University of Technology,Guangzhou,China,510640
  3. Guangzhou Goaland Energy Conservation Tech Co., Ltd, of Luogang District,Guangzhou,China,510663
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2016.08.008
  CLC：
- Published：2017
- Accepted：
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Jianfeng Hu, Yan Cai, Shan Lu, Jiezhen Xu, Zhongrun Yun, Jianheng Huang, Yuliang Wen, Jinqing Qu. Effect of surfactant on zeta potential and rheology behavior of methylene bis (thiocyanate) suspension concentrate[J]. , 2017, 25(5): 541-546.
DOI：

Jianfeng Hu, Yan Cai, Shan Lu, Jiezhen Xu, Zhongrun Yun, Jianheng Huang, Yuliang Wen, Jinqing Qu. Effect of surfactant on zeta potential and rheology behavior of methylene bis (thiocyanate) suspension concentrate[J]. , 2017, 25(5): 541-546. DOI： 10.1016/j.cjche.2016.08.008.

摘要

Abstract

Methylene bis(thiocyanate) (MBT) is insoluble in water

so suspension concentrate (SC) of MBT is extremely relied on surfactants. In this paper

SC of MBT was prepared with wet-grinding technology

and the effect of surfactants

such as Morwet D425 (D425) and Morwet EFW (EFW) (two kinds of dispersant)

on the Zeta potential and rheology behavior of MBT SC were investigated. The results showed that the Zeta potential absolute value of MBT SC increased with the increasing content of D425

and it decreased with the increasing content of EFW at acidic solution (pH=4.5). In the combination system of D425 and EFW

Zeta potential of MBT SC decreased first and then increased with the increasing content of EFW. The relationship between shear rate (

) and viscosity (

) was studied according to Herschel-Bulkley model:

k/γ

and the relationship between shear rate (

) and shear force (

) was investigated according to:

Kγ

. It was revealed that the mixed fluid belonged to Yield Pseudoplastic Fluid.

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