Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (10): 2376.

• Preface • Previous Articles     Next Articles

Effects of Cationic and Zwitterionic Surfactants on Wetting of Quartz Surfaces

LI Zhen-Quan1, WANG Zeng-Lin2, ZHANG Lei1, XU Zhi-Cheng3,  ZHANG Lu3*,  ZHAO Sui3   

  1. 1. Geological and Scientific Research Institute of Shengli Oilfield Co. Ltd, China Petrochemical Corporation, Dongying 257015,  China;
    2. Shengli Oilfield Co. Ltd, China Petrochemical Corporation, Dongying 257001,  China;
    3.Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190,  China
  • Received:2010-10-11 Revised:2010-12-20 Online:2011-10-10 Published:2011-09-11
  • Contact: ZHANG Lu E-mail:luyiqiao@hotmail.com
  • Supported by:

    国家科技重大专项(批准号:  2011ZX05011-004)和国家“八六三”计划项目(批准号:  2008AA092801)资助.

Abstract: The wetting behavior of quartz surface by aqueous solutions of cationic surfactant hexadecyl glycidyl ether ammonium chloride(C16PC) and zwitterionic surfactant hexadecyl glycidyl ether glycine betaine(C16PB) were investigated by the sessile drop analysis.  The influence of surfactant type and concentration on contact angle were expounded and the change in adhesional tension and adhesion work were discussed.  From obtained results it was appeared that an increase in quartz-water interface free emerge(γsl) due to the adsorption of both surfactants at the high-energy quartz interface.  For C16PB, its adsorption at quartz surface can occur by weak interactions, which can be expected approximately equal ability of an increase in γsl  and reduction of the surface tension of the liquid(γ1g).  As a result, there was little change of the contact angle with increasing bulk concentration.  However, in the case of C16PC, the surfactant molecules can form a monolayer with alignment structure on the quartz surface through electrostatic interaction, as the bulk concentration increases, and then the bilayer formed when the concentration is near to critical micelle concentration(cmc).  The contact angle can be divided into four regions and passed through a maximum with increasing concentration.

Key words: Hexadecyl glycidyl ether ammonium chloride(C16PC), Hexadecyl glycidyl ether glycine betaine(C16PB), Contact angle, Quartz surface

CLC Number: 

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