马来松香基双子表面活性剂的制备及其稳泡性能分析  

Preparation of Maleic Rosin-based Gemini Surfactant and Analysis of Its Foam Stabilizing Performance

作　　者：李扬 王振地[1] 王玲[1] LI Yang;WANG Zhen-di;WANG Ling(State Key Laboratory of Green Building Materials,China Building Materials Academy,Beijing 100024,P.R.China;State Key Laboratory of Solid Waste Reuse for Building Materials,Beijing Building Materials Academy of Sciences Research,Beijing 100041,P.R.China)

机构地区：[1]中国建筑材料科学研究总院,绿色建筑材料国家重点实验室,北京100024 [2]北京建筑材料科学研究总院有限公司固废资源化利用与节能建材国家重点实验室,北京100041

出　　处：《林产工业》2021年第12期59-64,共6页China Forest Products Industry

基　　金：国家重点研发计划(2017YFB0309903)。

摘　　要：为合成一种泡沫稳定的高原混凝土引气剂,以马来松香(MS)、环氧氯丙烷和四甲基乙二胺为原料,通过酯化反应合成二氯化-N,N'-二(3-马来松香酰氧-2-羟丙基)四甲基乙二胺(MRE)。研究了反应物摩尔比、反应时间和反应温度对中间产物(MSM)和产物MRE产率的影响,并采用FT-IR、界面膜法对其分子结构和性能进行测试。结果表明:合成MSM适宜的反应条件为:MS和环氧氯丙烷摩尔比为1∶2,反应时间为4 h,反应温度为90℃;合成MRE理想的反应条件为:MSM与四甲基乙二胺摩尔比2∶0.6,反应时间为20 h,反应温度为85℃。MRE的表面活性比十二烷基苯磺酸钠(SDBS)低,但是MRE溶液的气泡膜强度比SDBS高36.0%,低气压下泡沫高度减少率比SDBS小8.6%。MRE产生气泡稳定性高,比SDBS更适合在低气压条件下使用。To synthesize a foam-stabilized air entraining agent for concrete in high plateau,tetramethylethylenediamine(MRE)was synthesized by esterification with maleic rosin(MS),epichlorohydrin and tetramethylethylenediamine.The effects of reactant molar ratio,reaction temperature and reaction time on the intermediate product(MSM)and product MRE yield were investigated.The molecular structures of MS,MSM and MRE were analyzed using FTIR,and the properties were tested by the interface film method.The results showed that the optimum reaction conditions for the synthesis of MSM were 1∶2 molar ratio between MS and epoxy chloride,reaction temperature of 90℃and reaction time of 4 h.The ideal reaction conditions of the synthetic MRE were 2∶0.6,the reaction temperature was 85℃and the reaction time was 20 h.The surface activity of MRE was lower than that of sodium dodecylbenzene sulfonate(SDBS),but the bubble film strength of MRE solution was 36.0%higher than that of SDBS,and the foam height reduction rate under low air pressure was 8.6%lower than that of SDBS.MRE had high bubble stability and was more suitable than SDBS for use under low air pressure conditions.

关 键 词：马来松香 双子表面活性剂 表面张力 界面膜强度 气泡稳定性 

分 类 号：TS6[轻工技术与工程] TU533[建筑科学—建筑技术科学]