N-(2-羟基丙基)全氟辛酰胺起泡剂的合成及表面活性

doi:10.3724/SP.J.1095.2013.30027

摘要/Abstract

摘要： 以全氟辛酸和异丙醇胺为主要原料，在不同条件下利用脂肪酸法合成了非离子型氟碳发泡剂N-(2-羟基丙基)全氟辛酰胺。分别采用红外光谱法和核磁共振波谱法对产物结构进行了表征，并通过与十二烷基硫酸钠（SDS）的比较，综合评价了产物的起泡能力、泡沫稳定性、抗盐性及表面张力。实验结果表明，合成产物的泡沫综合值能达到SDS的1.6倍以上；其抗盐性较强，无机盐离子的浓度对产物发泡性的影响并不十分明显；合成产物最低可使水的表面张力降至9.275 mN/m，并且在较低的使用浓度下产物降低表面张力的能力仍远强于SDS。关联合成产物结构与性能的关系可知，产物中氢键的种类及数量、酰胺类物质的含量对其性能的影响较为明显。

关键词: 酰胺型氟碳发泡剂, 发泡性能, 表面张力

Abstract: Non-ionic fluorocarbon surfactant N-(2-hydroxypropyl) perfluorooctane amide was synthesized via the fattyacid method using perfluorooctanoic acid and isopropyl amine as precursors. The structures of products were characterized by infrared adsorption spectra(IR) and nuclear magnetic resonance spectroscopy(NMR). The bubbling potential, foam stability, salt resistance and surface tension of the samples were evaluated and compared with sodium dodecylsulfate(SDS). The results show that foam comprehensive exponent of the product is 1.6 times that of SDS. The foaminess is not obviously influenced by the concentration of inorganic ions. The surface tensions of the samples can be increased up to 9.275 mN/m. At lower concentration, the capability of reducing surface tension is better than that of SDS. The property of the products is strongly influenced by the type and quantity of hydrogen bonds, and the content of amides in the chain of the products.

Key words: the amide fluorocarbon foaming agent, foaming property, Surface tension

中图分类号:

O621

程琪, 刘欣梅, 戴彩丽. N-(2-羟基丙基)全氟辛酰胺起泡剂的合成及表面活性[J]. 应用化学, DOI: 10.3724/SP.J.1095.2013.30027.

CHENG Qi1, LIU Xinmei1*, DAI Caili2. Synthesis and Surface Activity of N-(2-Hydroxylpropyl) Perfluorooctane Amide Foaming Agent[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2013.30027.

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