Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (1): 7-11.doi: 10.3969/j.issn.1000-565X.2011.01.002

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Effect of Emulsifiers on Morphology and Film Wettability of Core-Shell Fluorine-Containing Poly-Styrene-Acrylate Latex

Xu Gui-long Deng Li-li Wen Xiu-fang Pi Pi-hui Zheng Da-feng Cheng Jiang Yang Zhuo-ru   

  1. South China university of technology and engineering college chemistry, guangdong guangzhou 51064
  • Received:2010-06-21 Revised:2010-08-31 Online:2011-01-25 Published:2010-12-01
  • Contact: 杨卓如(1947一)，男，教授，博士生导师，主要从事精细化工研究 E-mail:zhryan@scut.edu.cn
  • About author:徐桂龙(1984一)，男，博士生，主要从事精细化工研究
  • Supported by:

    广东省科技计划项目(2009B011000010)；华南理工大学中央高校基本科研业务费资助项目(2009ZM0288)A

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Abstract:

Fluorine-containing poly-styrene-acrylate latex was prepared by means of pre-emulsifying semi-conti-nuous seed emulsion polymerization in three different emulsifier systems such as SDS/OP-10,NDS-86 and DNS-86/fluorine-containing emulsifier.Then,the effects of the emulsifiers on the morphology of the latex particles and the hydrophobic/oleophilic properties of the latex film were investigated.Moreover,the morphology of latex particles,the chemical composition,the elements on the film surface and the hydrophobic/oleophilic properties of the film were characterized respectively by means of TEM,FT-IR,XPS and water/oil contact angle test.The results show that the latex particles prepared in SDS/OP-10 emulsifier system display a snowman structure,while those prepared in DNS-86 or DNS-86/fluorine-containing emulsifier system display an uniform core-shell structure,which benefits the enrichment of fluorine on the film surface,and that the film of the latex prepared in DNS-86/fluorine-containing emulsifier system possesses the best hydrophobic and oleophobic properties due to the morphology of latex particles and the adopted emulsifiers.

Key words: surfactants, fluorine-containing emulsion, latex morphology, core-shell structure