CAJ | 학술논문

以废弃聚酯、乙二醇、氯化亚砜、十二烷基二甲基叔胺为原料,合成了含有酯基的季铵盐Gemini型表面活性剂.用正交试验法对试验条件进行优化,得出较优的合成工艺条件:n(中间体):n(十二烷基二甲基叔胺)=1:2.1,反应温度为57℃,反应时间为12 h.用红外光谱及显色反应对产物结构进行表征,同时测试了表面活性剂的表面张力、熔点、泡沫性能、溶解性能等.测试结果显示其临界胶束浓度值为1.47 × 10~(-4) mol/L,表面张力为28.56 mN/m,其表面活性明显低于工业常用的表面活性剂.
이폐기취지、을이순、록화아풍、십이완기이갑기숙알위원료,합성료함유지기적계안염Gemini형표면활성제.용정교시험법대시험조건진행우화,득출교우적합성공예조건:n(중간체):n(십이완기이갑기숙알)=1:2.1,반응온도위57℃,반응시간위12 h.용홍외광보급현색반응대산물결구진행표정,동시측시료표면활성제적표면장력、용점、포말성능、용해성능등.측시결과현시기림계효속농도치위1.47 × 10~(-4) mol/L,표면장력위28.56 mN/m,기표면활성명현저우공업상용적표면활성제.
A biquaternaryammonium salt surfactant with ester bond was synthesized using waste polyester,ethylene glycol,chlorinated sulfoxide and N,N-demethyldodecylamine.The optimum reaction conditions obtained by orthogonal experiment are as follows:n(intermediate):n(N,N-demethyldodecylamine)=1:2.1,reacting at 57℃for 1 2 h.The product structures were characterized by IR and color reaction.The surface tension,melting point,foaming and solving properties of the product were tested.It was found that its critical micelle concentration value is 1.47×10~(-4)mol/L and the surface tension value is 28.56 mN/m.The surface activity is obviously lower than that of commonly used commercial SUrfactants.