Effects of poly(ethylene oxide) adsorption on the dispersion of smectites

Chia Chi Su, Yun Hwei Shen

研究成果: Article同行評審

17 引文 斯高帕斯(Scopus)

摘要

The adsorption of polymers on clay is important in many applications. However the mechanisms of poly(ethylene oxide) (PEO) adsorption on smectite and its effect on suspension rheology are not well elucidated at present. The aim of this study was to investigate the mechanisms responsible for PEO sorption on smectite and how this impacts on dispersive behavior of smectite suspension. The results indicated that the hydrophobic interaction between CH2{single bond}CH2{single bond} groups and siloxane surface is the major driven force for PEO adsorption on smectite. In addition, PEO adsorbed preferentially on the surface of low-charge smectite and the delamination of low-charge smectite in water was enhanced due to PEO adsorption presumably due to the hydrophilic ether oxygen of adsorbed PEO.

原文English
頁(從 - 到)1-6
頁數6
期刊Colloids and Surfaces A: Physicochemical and Engineering Aspects
312
發行號1
DOIs
出版狀態Published - 2008 一月 4

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

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