| 一种阳离子Gemini型沥青乳化剂的合成及性能 |
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| 引用本文： | 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. DOI: 10.11944/j.issn.1000-0518.2018.05.170146 |
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| 作者姓名： | 刘佳佳 谢益诚 许虎君 |
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| 作者单位： | 江南大学化学与材料工程学院 江苏 无锡 214122 |
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| 基金项目： | 江苏省产学研前瞻性联合研究项目(BY2015019-35) |
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| 摘 要： | 以苯胺、环氧氯丙烷和十四烷基二甲基叔胺为原料,合成了含有苯环的阳离子Gemini型沥青乳化剂3,3'-苯基亚氨基-(二(2-羟基丙基-十四烷基二甲基)氯化铵)(G-T)。 采用傅里叶红外光谱(FT-IR)、质谱(MS)和核磁共振谱(1H NMR)对产物进行了结构表征。 研究了其Krafft点、乳化性能和乳化沥青时的相关性能,并测定了25~40 ℃的临界胶束浓度(cmc)、平衡表面张力(γcmc)及计算了相应的热力学函数。 结果表明,G-T的Krafft点低于0 ℃,乳化分水时间为309 s。 25 ℃时,cmc为1.269×10-3 mol/L,γcmc为38.33 mN/m。 随着温度的升高,cmc增大、γcmc减小、饱和吸附量(Γmax)减小、极限占有面积(Amin)增大。 乳化沥青测试表明,G-T拌和时间为255 s,是慢裂型沥青乳化剂。 所制备的乳化沥青满足微表处技术规范。
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| 关 键 词： | Gemini型表面活性剂 表面张力 乳化性能 沥青乳化剂 |
| 收稿时间： | 2017-05-08 |
Synthesis and Properties of a Cationic Gemini Asphalt Emulsifier |
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| LIU Jiajia,XIE Yicheng,XU Hujun. Synthesis and Properties of a Cationic Gemini Asphalt Emulsifier[J]. Chinese Journal of Applied Chemistry, 2018, 35(5): 552-558. DOI: 10.11944/j.issn.1000-0518.2018.05.170146 |
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| Authors: | LIU Jiajia XIE Yicheng XU Hujun |
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| Affiliation: | School of Chemical and Material Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China |
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| 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 γcmc are 1.269×10-3 mol/L and 38.33 mN/m at 25 ℃, respectively. With the rise of temperature, the cmc increases, the γcmc decreases, 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. |
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| Keywords: | Gemini surfactants surface tension emulsifying properties asphalt emulsifie |
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