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用不同比例的水-乙醇混合物作水相制备了胶体泡沫(CLA),实验观察并测定了CLA的形态、粒径分布、半衰期、Zeta电位、水相溶液的粘度和水相/油相之间的界面张力等性质.结果表明,水相中加入乙醇会影响CLA的稳定性和粒径大小,但对CLA的Zeta电位影响不大.乙醇对CLA稳定性的影响主要是由于乙醇分子嵌入到界面膜中导致膜的强度变化以及水相粘度发生变化导致CLA粒子间隙的排液过程发生变化.
Colloid foam (CLA) was prepared by using different proportions of water-ethanol mixture as the aqueous phase. The morphology, particle size distribution, half-life, Zeta potential, viscosity of aqueous solution and water / The results showed that the addition of ethanol to the aqueous phase affected the stability and particle size of CLA, but had little effect on the Zeta potential of CLA.The effect of ethanol on CLA stability was mainly attributed to the intercalation of ethanol molecules into the interface Changes in film strength and changes in aqueous viscosity resulted in changes in the drainage of CLA particles.