摘要
研究了不同反离子的C12-14脂肪醇硫酸盐[脂肪醇硫酸锂(AS-Li)、脂肪醇硫酸钠(AS-Na)、脂肪醇硫酸钾(AS-K)]的性能,包括平衡表面张力、动态表面张力、泡沫、润湿和乳化性能.结果表明:临界胶束浓度时的表面张力按照AS-Li>AS-K>AS-Na顺序降低;AS-Li和AS-Na初始动态表面张力低于AS-K;泡沫体积按照AS-Na>AS-K>AS-Li的顺序降低;润湿时间按照AS-Li<AS-Na<AS-K的顺序增加;AS-Li的乳液稳定性比AS-Na和AS-K差.
Abstract
The performance of C12-14 fatty alcohol sulfate with different counter Ions(AS-Li,AS-Na and AS-K)was studied.Equilibrium surface tension,dynamic surface tension,foam,wetting and emulsification performance of the C12-14 fatty alcohol sulfate were tested.The results indicated that surface tension at critical micelle concentration decreased in the order AS-Li>AS-K>AS-Na.Initial dynamic surface tension of AS-Li and AS-Na was lower than that of AS-K.The foam volume of C12-14 fatty alcohol sulfate decreased in the order AS-Na>AS-K>AS-Li,while the wetting time increased in the order AS-Li<AS-Na<AS-K.Additionally,the emulsification performance of AS-Na and AS-K was better than that of AS-Li.
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