The gemini surfactants with ethylene glycol as a starting material were synthesized, surface tensions and aggregation properties were evaluated, the wettability on paraffin, PTFE and metaplexis leave surfaces were determined. The experimental results showed the surface tensions of gemini surfactant solutions decrease first and then stabilize with the concentration increasing. The cmc values of surfactants decrease as their hydrophobic chain length increased, with the hydrophobic chain length of 14 shown the smallest γcmc and highest surface activity among these six investigated gemini surfactants. The equilibrium contact angles of investigated surfactant solutions on three solid surfaces of paraffin, PTFE, and metaplexis decrease firstly with the increase of concentrations, and finally stabilize. The 14-2-14 solutions can change surface of metaplexis leaves from hydrophobic to hydrophilic. The contact angles of gemini surfactants on paraffin surfaces vary significantly, and all of the six synthesized gemini surfactants can change paraffin surfaces from hydrophobic to hydrophilic.

合成了以乙二醇为起始原料的双子表面活性剂，评价了其表面张力和聚集性能，确定了在石蜡，PTFE和上层复合物表面的润湿性。实验结果表明，双子表面活性剂溶液的表面张力先下降，然后随着浓度的增加而稳定。表面活性剂的cmc值随其疏水链长度的增加而降低，其中14种疏水链长度在这6种被研究的双子表面活性剂中显示出最小的γcmc和最高的表面活性。所研究的表面活性剂溶液在石蜡，PTFE和金属络合物的三个固体表面上的平衡接触角随浓度的增加而先减小，最后稳定。14-2-14溶液可以将新叶的表面从疏水性变为亲水性。双子表面活性剂在石蜡表面上的接触角变化很大，并且所有六种合成的双子表面活性剂都可以将石蜡表面从疏水变为亲水。