School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom.
School of Chemistry, University of Bristol, Bristol BS8 1TS, United Kingdom.
Adv Colloid Interface Sci. 2017 Sep;247:496-513. doi: 10.1016/j.cis.2017.05.013. Epub 2017 May 12.
This article discusses different natural and man-made foams, with particular emphasis on the different modes of formation and stability. Natural foams, such as those produced on the sea or by numerous creatures for nests, are generally stabilised by dissolved organic carbon (DOC) molecules or proteins. In addition to this, foam nests are stabilised by multifunctional mixtures of surfactants and proteins called ranaspumins, which act together to give the required physical and biochemical stability. With regards to industrial foams, the article focuses on how various features of foams are exploited for different industrial applications. Stability of foams will be discussed, with the main focus on how the chemical nature and structure of surfactants, proteins and particles act together to produce long-lived stable foams. Additionally, foam destabilisation is considered, from the perspective of elucidation of the mechanisms of instability determined spectroscopically or by scattering methods.
本文讨论了不同的天然和人工泡沫，特别强调了不同的形成和稳定性模式。天然泡沫，如海洋或许多生物产生的巢穴中的泡沫，通常通过溶解有机碳 (DOC) 分子或蛋白质来稳定。除此之外，泡沫巢穴还通过称为 ranaspumins 的具有多种功能的表面活性剂和蛋白质混合物稳定，它们共同作用以提供所需的物理和生化稳定性。关于工业泡沫，本文重点介绍了泡沫的各种特性如何被用于不同的工业应用。本文将讨论泡沫的稳定性，主要关注表面活性剂、蛋白质和颗粒的化学性质和结构如何共同作用产生长寿命稳定的泡沫。此外，还从通过光谱或散射方法确定的不稳定性机制的阐明角度考虑了泡沫的失稳。
