A Study of the Microstructure of a Four-Component Nonionic Microemulsion by Cryo-TEM, NMR, SAXS, and SANS

摘要: One recently reported application of microemulsions is as a fire-resistant hydraulic fluid where efficacy and stability depend among other factors upon the water-solubilizing capacity microemulsion on relative concentration surfactant. A model for such system has been studied using cryo-transmission electron microscopy (cryo-TEM), 1H NMR self-diffusion, small angle X-ray (SAXS) neutron scattering (SANS). The phase behavior containing 1:1:2 oil:alcohol:surfactant weight ratio characterized by single continuous region starting from solution no water approaching corner. Along this dilution line, structural transition sequence:  oil drops → short range, noncontinuous lamellar microstructure weakly hydrated aggregates inferred decreased. local microstructure, i.e., stacks surfactant sheets, oil, water, randomly oriented in space without long ra...