炔二醇类双子表面活性剂的表面活性和铺展性能研究

Surface activity and wetting ability of acetylenic glycols base Gemini surfactants

利用表面张力仪和接触角测量仪研究了2个四甲基-6-癸炔-5,8-二醇聚氧乙烯醚的表面活性及其在低能表面(石蜡)上的铺展行为。结果表明:四甲基-6-癸炔-5,8-二醇聚氧乙烯醚在1.0 g/L时都能将水的表面张力降到26 m N/m,且在石蜡表面的接触角为50°。2个表面活性剂都有很高的表面活性和铺展能力。

The surface activity and wetting ability on low energy sufrace（paraffin） of two tetramethyl-6-decyne-5,8-diol polyoxyethylene were studied by surface tension meter and contact angle tester. The results showed that the surface tension of water could be lowered to 26 m N/m by only 1.0 g/L of tetramethyl-6-decyne-5,8-diol polyoxyethylene, and the contact angle of paraffin surface was 50°. Both of the two surfactants have high surface activity and good wetting ability.