作　　者： ; ; ; (杨中强）;

机构地区： 山东大学化学与化工学院

出　　处： 《平顶山学院学报》 2014年第2期61-67,共7页

摘　　要： 以十八烷基二甲基叔胺、环氧氯丙烷经一步反应合成出一种新型阳离子沥青乳化剂N,N-二甲基-N-(环氧乙烷-2-亚甲基)十八烷基-1-氯化铵.确定了该反应的最佳反应条件,在最佳反应条件下反应的产率和环氧值分别为98.0%和41.8%.利用红外光谱、1H NMR和元素分析对产物结构进行了表征,利用在线红外光谱技术对该反应进行了追踪分析,检测到副产物.基于以上实验数据,提出了合理的反应机理.该乳化剂对沥青具有很好的乳化能力,制备的乳化沥青储存稳定性良好,属于中裂型沥青乳化剂. A novel cationic asphalt emulsifier N,N-dimethyl-N-（ oxiran-2-ylmethyl） octadecan-1-aminium chloride was synthesized by the reaction of epichlorohydrin and N,N-dimethyloctadecylamine. The optimum reaction condition was obtained. The yield and epoxy group value reached 98. 0% and 41. 8%,respectively. The chemical structure of the emulsifier was confirmed by FTIR,1H NMR and elemental analysis. The synthesis process was monitored by online FTIR technique. The by-product was detected by online FTIR analysis. Based on the experimental data,a plausible reaction mechanism was proposed for the reaction. The emulsifier has satisfactory emulsification. The prepared bituminous emulsion shows higher storage stability. The emulsifier belongs to medium-set asphalt emulsifier.

关 键 词： 沥青 乳化剂 阳离子 合成 在线红外

领　　域： [石油与天然气工程]