摘要
利用全氟-2,5-二甲基-3,6-二氧壬酰氯与不同的长链醇(正己醇、正癸醇、十四醇、十八醇)通过酯化反应一步制备了非离子型氟碳表面活性剂C9F17O4(CH2)nH(n=6、10、14、18)。对合成产物进行表征,并测试其的表面张力、临界胶束浓度和热稳定性等物理性质。实验结果表明合成的新型非离子型氟碳表面活性剂表面张力均在16~21mN·m-1之间,HLB值均在3.5~4.5之间,合成产物具有很好的亲油性,在有机溶剂中能够明显降低其的表面张力,且具有很高的热稳定性,在消防、工艺应用中具有很广阔的应用前景。
The nonionic fluorocarbon surfactant C9F17O4(CH2)nH(n=6, 10, 14, 18)is prepared by the esterification reaction in one step between the perfluoro-2,5-dimethyl-3,6-dioxononanoyl chloride and different long-chain alcohols(n-hexanol, n-decyl alcohol, tetradecyl alcohol, stearyl alcohol). The synthesized product is characterized, and its physical properties are tested, such as the surface tension, critical micelle concentration and thermal stability. The experimental results show that the surface tension of the synthesized new nonionic fluorocarbon surfactants is between 16 ~21 mN·m-1, and the HLB value is in the range of 3.5~4.5. The synthesized products have good lipophilicity, in the organic solvent, the surface tension can be significantly reduced, and the product has high thermal stability. It has broad application prospects in fire protection and process applications.
作者
刘瑾
王之琨
LIU Jin;WANG Zhi-kun(College of Chemical Engineering,Shaanxi Guofang Institute of Technology,Xi'an 710300,China;Qingdao DIC Finechmicals Co.Ltd.,Qingdao 266101,China)
出处
《化学与粘合》
CAS
2021年第2期106-110,共5页
Chemistry and Adhesion
基金
陕西国防工业职业技术学院2019年科技项目(编号:Gfy19-29)。
关键词
酯化反应
氟碳表面活性剂
亲水亲油性
表面张力
临界胶束浓度
Esterification reaction
fluorocarbon surfactant
hydrophilic and lipophilicity
surface tension
critical micelle concentration
