R_(12)TAC-SDS混合溶液的表面张力和泡沫性能

Surface Tensions and Foam Properties of R_( 12) TAC-SDS Mixed Aqueous Solution

测定了 3 十二烷氧基 2 羟丙基三甲基氯化铵 (R12 TAC)和十二烷基硫酸钠 (SDS)复配体系的表面张力和泡沫性能。实验表明 ,复配体系的CMC及γCMC均低于单一组分。当R12 TAC和SDS以等量比复配时 ,体系表现出良好的泡沫性能。其中起泡性参数Cs为 1.99mmol/L ,Rmv 为0 86 ,稳泡性参数Ct为 2 .5 0mmol/L ,t1/ 2 m 为 91.5s。对相互作用参数的计算表明 。

The surface tension and foam properties of mixed aqueous solution of 3 dodecoxy 2 hydroxypropyl trimethylammonium chloride (R 12 TAC) and sodium dodecyl sulfate (SDS) were measured.The experimental results show that the critical micelle concentration (CMC) and the surface tension at the CMC ( γ CMC ) of the mixture system are lower than those of single surfactants.When R 12 TAC and SDS are mixed in equal mole ratio,the binary surfactant aqueous solution presents a good foam character,for example,the foaming parameters C s and R m v are 1.99 mmol/L and 0.86,the foam stability parameters c t and t 1/2 m are 2.50 mmol/L and 91.5 s,respectively.Calculations of interaction parameters of the system show that an intense synergism exists between R 12 TAC and SDS.