Particle Shape Dependence of Rheological Behavior for Colloid-polymer Mixtures

Lei Ye; Yue Xie; Dong Qiu; Ying Kan; Zheng-dong Zhang

doi:10.1007/s10118-014-1538-2

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Particle Shape Dependence of Rheological Behavior for Colloid-polymer Mixtures

Updated：2021-06-21

- Particle Shape Dependence of Rheological Behavior for Colloid-polymer Mixtures
- Chinese Journal of Polymer Science Vol. 32, Issue 11, Pages: 1515-1523(2014)
- Affiliations：
  
  Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  National Institute of Metrology, Beijing 100013, China
- Author bio：
  
  **Dong Qiu (邱东), E-mail: dqiu@iccas.ac.cn
  Zheng-dong Zhang (张正东), E-mail: zhangzhengdong@nim.ac.cn
- Funds：
- DOI：10.1007/s10118-014-1538-2
  CLC：
- Received：15 January 2014，
  
  Revised：2014-03-05，
  
  Accepted：10 March 2014，
  
  Published：2014-11
- Accepted：
Scan QR Code
Lei Ye, Yue Xie, Dong Qiu, et al. Particle Shape Dependence of Rheological Behavior for Colloid-polymer Mixtures[J]. Chinese Journal of Polymer Science, 2014, 32(11): 1515-1523.
DOI：

Lei Ye, Yue Xie, Dong Qiu, et al. Particle Shape Dependence of Rheological Behavior for Colloid-polymer Mixtures[J]. Chinese Journal of Polymer Science, 2014, 32(11): 1515-1523. DOI： 10.1007/s10118-014-1538-2.

摘要

Abstract

The effect of particle shape on the rheological behavior of small particle-large polymer chain mixture solutions has been investigated with two model colloidal silica dispersions

one of which is ellipsoidal (BINDZIL20/440) and the other is spherical (TM40). It was found that BINDZIL20/440 series showed shear-thickening at lower shear rates and had a lower upper limit in PEO concentration to demonstrate shear-thickening phenomena. The particle shape was identified as the major factor accounting for these differences. This work enables one to control the rheological behavior of colloid-polymer mixture through simply changing particle geometry instead of performing surface modifications

which could be especially useful in cases where only certain chemicals are allowed

for example

in vivo

applications.

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Related Institution

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