应用化学2018，Vol.35Issue(5)：552-558,7.DOI:10.11944/j.issn.1000-0518.2018.05.170146
一种阳离子Gemini型沥青乳化剂的合成及性能
Synthesis and Properties of a Cationic Gemini Asphalt Emulsifier
摘要
Abstract
A cationic Gemini asphalt emulsifier with benzene ring(symbolized as G-T)was synthesized with aniline,epichlorohydrin and N,N-dimethyltetradecylamine by two steps.The product was characterized by Fourier transform infrared spectroscopy(FT-IR),mass spectroscopy,and proton nuclear magnetic resonance(1H NMR)spectroscopy.The Krafft point,emulsifying power and performance of emulsified asphalt were studied.The critical micelle concentration(cmc)and surface tension(γcmc)of G-T were measured from 25℃to 40 ℃and thermodynamic parameters of the micellization were calculated.The results show that the Krafft point of G-T is below 0 ℃,and the stable time of the emulsified liquid is up to 309 s.The cmc and γcmcare 1.269×10-3mol/L and 38.33 mN/m at 25 ℃,respectively.With the rise of temperature,the cmc increases,the γcmcdecreases,the maximum surface adsorption capacity(Γmax)decreases and the minimum molecule area(Amin)increases.Emulsified asphalt test shows that G-T is a slow-crack asphalt emulsifier.The prepared emulsified asphalt meets the technical specifications of micro-surfacing.关键词
Gemini型表面活性剂/表面张力/乳化性能/沥青乳化剂Key words
Gemini surfactants/surface tension/emulsifying properties/asphalt emulsifie分类
化学化工引用本文复制引用
刘佳佳,谢益诚,许虎君..一种阳离子Gemini型沥青乳化剂的合成及性能[J].应用化学,2018,35(5):552-558,7.基金项目
江苏省产学研前瞻性联合研究项目(BY2015019-35) Supported by the Jiangsu Provincial Prospective Joint Research Project of Industry-Academy-Research(No.BY2015019-35) （BY2015019-35）
