短链烷基苯磺酸盐对阴离子/非离子表面活性剂的表面化学性能影响

摘要

The effect of cumene sulfonate(NaCS),sodium xylenesulfonate(NaXS) were studied on the surface chemical properties,micelle aggregation number of anionic ionic surfactants fatty alcohol polyoxyethylene ether sodium sulfate(AES),sodium dodecyl sulfate(SDS),nonionic surfactants fatty alcohol polyoxyethylene ether(AEO9) and also studies the effect on cloud point of AEO9 by measuring the surface tension,micellar aggregation number and cloud point.The results showed that NaCS could increase the cloud point of AEO9 from 73.8 ℃ to 86.2 ℃,but the decrease of cmc was small and the change of γcmc was not obvious.With the addition of NaCS and NaXS,the cmc and γcmc of AES and SDS decreased obviously,the number of micellar aggregates increased first and then decreased gradually.%通过表面张力(滴体积法)、胶束聚集数、浊点的测定,研究了异丙苯磺酸钠(NaCS)、二甲苯磺酸钠(NaXS)对非离子表面活性剂脂肪醇聚氧乙烯醚9(AEO9)、阴离子-非离子表面活性剂脂肪醇聚氧乙烯醚硫酸钠(AES)及十二烷基硫酸钠(SDS)的表面化学性能、胶束聚集数的影响以及对AEO9浊点的影响.结果表明,NaCS可使AEO9的浊点由73.8℃提高至86.2℃,但其cmc降低幅度较小,ycmc无明显变化;随着NaCS、NaXS的加入,AES、SDS的cmc、γcmc明显降低,胶束聚集数先突然增大,后缓慢降低.