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酯基三甲氧基有机硅季铵盐的性能研究 被引量:1

Study on the properties of ester trimethoxy organosilicon quaternary ammonium salt
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摘要 研究了酯基三甲氧基有机硅季铵盐(ETOQAS)的表面活性、润湿铺展性和生物降解性。结果表明:25℃时采用表面张力法测得ETOQAS的cmc=0.01 g/L,γ_(cmc)=15.72 mN/m;随着体系中NaCl浓度的增加,通过稳态荧光法测得的ETOQAS水溶液的cmc呈减小的趋势;随着ETOQAS水溶液质量浓度的增加,其在铁块和石蜡上的接触角逐渐减小;ETOQAS能够在3 d内降解完全。 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 Tcmc is 15.72 mN/m. Meanwhile, NaCI was added into ETOQAS aqueous solution, and its cmc, measured by steady - state fluores- cence 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.
出处 《日用化学工业》 CAS CSCD 北大核心 2016年第8期447-449,461,共4页 China Surfactant Detergent & Cosmetics
基金 广州市科技计划资助项目(201510010019)
关键词 酯基三甲氧基有机硅季铵盐 表面活性 接触角 生物降解性 ester trimethoxy organosilicon quaternary ammonium salt surface activity contact angle biodegradation
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