文章摘要
王亚魁,姜亚洁,耿涛,鞠洪斌.双酰胺基Gemini阳离子表面活性剂的合成及应用性能[J].精细化工,2019,36(1):
双酰胺基Gemini阳离子表面活性剂的合成及应用性能
Synthesis and Application Properties of Gemini Cationic Surfactant With Diamide Groups
投稿时间:2018-03-28  修订日期:2018-08-22
DOI:
中文关键词: 双酰胺基团  Gemini阳离子表面活性剂  油/水界面张力  应用性能
英文关键词: diamide groups  gemini cationic surfactant  oil-water interface tension  application performance
基金项目:国家重点研发计划资助项目(2017YFB0308900);山西省自然科学基金资助项目(201601D102023)
作者单位E-mail
王亚魁 中国日用化学研究院有限公司 wangyk0808@sina.com 
姜亚洁 中国日用化学研究院有限公司 jiangyajie2004@163.com 
耿涛 中国日用化学研究院有限公司  
鞠洪斌 中国日用化学研究院有限公司  
摘要点击次数: 176
全文下载次数: 0
中文摘要:
      以月桂酸、N, N-二甲基-1, 3-丙二胺和1, 3-二氯-2-丙醇为原料,在碳酸钠催化下合成了双酰胺基Gemini阳离子表面活性剂(ADQ-12)。通过FTIR和1HNMR对其结构进行了表征,并对其表/界面活性、抗静电性、抗盐性、抑菌性以及生物降解性能进行了测定。结果表明,25 ℃下,ADQ-12具有比传统单链阳离子表面活性剂低1~2个数量级的临界胶束浓度(CMC为1.41×10-4 mol/L),表面张力(γCMC)为32.26 mN/m;在ADQ-12质量浓度为0.05 g/L时,煤油/水界面张力(IFT)可降低至超低界面水平(4.1×10-3 mN/m),远低于十六烷基三甲基溴化铵(CTAB)的2 mN/m;在质量浓度为1.0 g/L时,ADQ-12对二价钙、镁离子具有优良的耐盐性能(>60 g/L); ADQ-12即使在低质量浓度下(10 mg/L)对金黄色葡萄球菌和大肠杆菌的抑菌率仍达到100%,相比双癸基二甲基氯化铵(DDAC)的抑菌能力更强;ADQ-12的7d生物降解度≥99%,表现出优异的生物降解性能。
英文摘要:
      A Gemini cationic surfactant with diamide groups (ADQ-12) was synthesized using Lauric acid, N, N-dimethyl-1, 3-propanediamine and 1, 3-dichloro-2-propanol as raw materials under the action of sodium carbonate. Product was characterized by FTIR and 1HNMR, the surface/ interfacial activities and application performance were researched. The results showed that ADQ-12 has critical micelle concentration(CMC value is 1.41×10-4 mol/L) that are 1~2 orders of magnitude lower than conventional single cationic surfactants and γCMC is 32.26 mN/m; When the surfactant concentration is 0.05 g/L, the interfacial tension of kerosene/water(IFT) could be reduced to ultra-low level (4.1×10-3 mN/m), which is much lower than 2 mN/m of hexadecyl trimethyl ammonium bromide(CTAB); ADQ-12 showed strong resistance to calcium and magnesium ions(>60 g/L) in the case of concentration of 1.0 g/L; The antibacterial rate of ADQ-12 against on S. aureus and E. coli was still 100% when surfactant concentration is 10 mg/L, which is greater efficacy than didecyl dimethyl ammonium chloride(DDAC); The biodegradation of ADQ-12 after 7 days was higher than 99% and showed the excellent biodegradability.
查看全文   查看/发表评论  下载PDF阅读器
关闭