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China Surfactant Detergent & Cosmetics ›› 2016, Vol. 46 ›› Issue (8): 447-449.doi: 10.13218/j.cnki.csdc.2016.08.004

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Study on the properties of ester trimethoxy organosilicon quaternary ammonium salt

CHEN Rui-lan1,ZHENG Cheng2,MAO Tao-yan2,CHEN Peng2,LI Min-shan2,LIN Jing2   

  1. 1.Electronic and Information Engineering,Jiaying University,Meizhou,Guangdong 514015,China;
    2.Fine Chemical Research Institute,Guangzhou University,Guangzhou,Guangdong 510006,China
  • Online:2016-08-22 Published:2019-04-18

Abstract: The surface properties and biodegradation characteristics of the ester trimethoxy organosilicon quaternary ammonium salt (ETOQAS) were measured.The results showed that at 25 ℃,the critical micelle concentration (cmc) of ETOQAS measured by surface tension method is 0.01 g/L,and γcmc is 15.72 mN/m.Meanwhile,NaCl was added into ETOQAS aqueous solution,and its cmc,measured by steady-state fluorescence method shows decreasing.As the mass concentration of ETOQAS increases,the contact angle on surface of iron and paraffin wax decreases.ETOQAS can be completely biodegraded within 3 d.

Key words: ester trimethoxy organosilicon quaternary ammonium salt, surface activity, contact angle, biodegradation

CLC Number: 

  • TQ423.4