摘要
本文研究RfCONH(CH2 ) 3N(C2 H5) 2 CH3I CnH2n + 1 COONa及RfCOONa CmH2m + 1 N(CH3) 3Br(Rf=F[CF(CF3)CF2 O]2 CF(CF3) ;n =7,9,11,13;m =8,10 ,12 )两类正、负离子碳氟 碳氢表面活性剂混合水溶液在油面上的铺展及对油面的密封性能。研究表明在碳氟表面活性剂中加入异电性碳氢表面活性剂可大大降低碳氟表面活性剂水溶液的铺展浓度 ,也可使一些因表面张力较高而不能铺展的碳氟表面活性剂水溶液在油面上铺展。在碳氟表面活性剂中加入异电性碳氢表面活性剂可提高水膜对油面的密封性。若在混合表面活性剂中加入黄原胶 。
Spreading on oil of cationic anionic fluorocarbon hydrocarbon surfactants R fCONH(CDH 2) 3N(C 2H 5) 2CH 3I/C nH 2n+1 COONa and R fCOONa/C mH 2m+1 N(CH 3) 3Br (R f=F[CF(CF 3)CF 2O] 2CF(CF 3);n=7,9,11,13;m=8,10,12) was studied.It showed that counter charged hydrocarbon surfactants decrease spreading concentration of fluorocarbon surfactants and make fluorocarbon surfactants that have high surface tension spread on oil.The sealing capability of aqueous film on oil is enhanced by both counter charged hydrocarbon surfactants and xanthan gum.
出处
《化学研究与应用》
CAS
CSCD
北大核心
2002年第2期137-140,共4页
Chemical Research and Application
基金
国家自然科学基金资助项目 (2 9973 0 0 2 )
