The hydrophobic or oil phase in fluid mixtures is often given little attention in interfacial experiments and emulsion design. This has been the cause for significant inconsistencies in the scientific literature, as experiments were often performed at arbitrary oils, which impeded the reproducibility and comparability as well as hampers the pathway to a generic description. Here, we summarize the effect of the oil phase on the adsorption, assembly, and interfacial rheology of surfactants, proteins, and particles at fluid interfaces and the resulting influence on emulsions. Furthermore, we provide experimental guidelines for using oils in interfacial experiments, aiming to harmonize results and protocols in interfacial science.

在界面实验和乳液设计中，流体混合物中的疏水相或油相通常很少受到关注。这一直是科学文献中严重不一致的原因，因为实验经常在任意油中进行，这阻碍了再现性和可比性，并阻碍了通向通用描述的途径。在这里，我们总结了油相对流体界面上表面活性剂、蛋白质和颗粒的吸附、组装和界面流变学的影响，以及由此产生的对乳液的影响。此外，我们提供了在界面实验中使用油的实验指南，旨在协调界面科学中的结果和协议。