Department of Chemistry, University of Hull, Hull HU6 7RX, UK.
Department of Chemistry, University of Hull, Hull HU6 7RX, UK.
Adv Colloid Interface Sci. 2021 May;291:102404. doi: 10.1016/j.cis.2021.102404. Epub 2021 Mar 20.
The area of oil foams although important industrially has received little academic attention until the last decade. The early work using molecular surfactants for stabilisation was limited and as such it is difficult to obtain general rules of thumb. Recently however, interest has grown in the area partly fuelled by the understanding gained in the general area of colloidal particles at fluid interfaces. We review the use of solid particles as foaming agents for oil foams in cases where particles (inorganic or polymer) are prepared ex situ and in cases where crystals of surfactant or fat are prepared in situ. There is considerable activity in the latter area which is particularly relevant to the food industry. Discussion of crude oil/lubricating oil foams is excluded from this review.
尽管油泡沫在工业上很重要，但直到过去十年才受到学术界的关注。早期使用分子表面活性剂进行稳定的工作是有限的，因此很难获得一般的经验法则。然而，最近人们对这个领域的兴趣有所增加，部分原因是在胶体颗粒在流体界面的一般领域中获得了更多的理解。我们回顾了在油泡沫中使用固体颗粒作为发泡剂的情况，其中颗粒（无机或聚合物）是在原位制备的，而在原位制备表面活性剂或脂肪晶体的情况。后者领域非常活跃，特别是与食品工业相关。本文不讨论原油/润滑油泡沫。
