Coalescence Suppression in Flowing Polymer Blends Using Silica Rods with Different Surface Chemistries

Si-Ying Xiang; Li-Sa-Ya Ye; Ya-Jiang Huang; Ya-Dong Lv; Mi-Qiu Kong; Guang-Xian Li

doi:10.1007/s10118-021-2526-y

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Coalescence Suppression in Flowing Polymer Blends Using Silica Rods with Different Surface Chemistries

ARTICLE | Updated：2020-11-17

- Coalescence Suppression in Flowing Polymer Blends Using Silica Rods with Different Surface Chemistries
- Chinese Journal of Polymer Science Vol. 39, Issue 4, Pages: 474-483(2021)
- Affiliations：
  
  College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering of China, Sichuan University, Chengdu 610065, China
- Author bio：
  
  hyj@scu.edu.cn (Y.J.H.)
  guangxianli@scu.edu.cn (G.X.L.)
- Funds：
- DOI：10.1007/s10118-021-2526-y
  CLC：
- Received：20 July 2020，
  
  Revised：2020-10-22，
  
  Accepted：03 November 2020，
  
  Online First：17 November 2020，
  
  Published：01 January 2021
- Accepted：
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Xiang, S. Y.; Ye, L. S. Y.; Huang, Y. J.; Lv, Y. D.; Kong, M. Q.; Li, G. X. Coalescence suppression in flowing polymer blends using silica rods with different surface chemistries. Chinese J. Polym. Sci. 2021, 39, 474–483

Si-Ying Xiang, Li-Sa-Ya Ye, Ya-Jiang Huang, et al. Coalescence Suppression in Flowing Polymer Blends Using Silica Rods with Different Surface Chemistries[J]. Chinese Journal of Polymer Science, 2021, 39(4): 474-483.
Xiang, S. Y.; Ye, L. S. Y.; Huang, Y. J.; Lv, Y. D.; Kong, M. Q.; Li, G. X. Coalescence suppression in flowing polymer blends using silica rods with different surface chemistries. Chinese J. Polym. Sci. 2021, 39, 474–483 DOI： 10.1007/s10118-021-2526-y.

Si-Ying Xiang, Li-Sa-Ya Ye, Ya-Jiang Huang, et al. Coalescence Suppression in Flowing Polymer Blends Using Silica Rods with Different Surface Chemistries[J]. Chinese Journal of Polymer Science, 2021, 39(4): 474-483. DOI： 10.1007/s10118-021-2526-y.

摘要

Abstract

Silica rods with homogeneous (hydrophilic or hydrophobic) and amphiphilic surface properties were synthesized and their efficiencies in suppressing the flow-induced droplet coalescence of immiscible polyisobutylene (PIB)/polydimethylsiloxane (PDMS) blends were evaluated

via in situ

visualization technique. The flow-induced coalescence behavior of blends was found to strongly depend on the surface nature and concentration of silica rods added as well as the blend ratio. While a trace amount of rods promoted coalescence

all kinds of rods demonstrated a morphology refinement effect at high rod concentrations. Good compatibilization effects were obtained at high rod concentrations

especially for hydrophilic and amphiphilic rods. Based on confocal laser scanning microscopy results

these phenomena observed were interpreted reasonably in terms of the selective distribution and aggregation of silica rods

which were suggested to be decisive for the stabilization mechanism and efficiency of these rods.

关键词

Keywords

references

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