Lauryl betaine (LB) as an amphoteric surfactant carries both positive and negative charges and should be able to generate stable foam through electrostatic interaction with nanoparticles and co-surfactants. However, no previous attempts have been made to investigate the influence of nanoparticles and other co-surfactants on the stability and apparent viscosity of LB-stabilized foam. In this study, a thorough investigation on the influence of silicon dioxide (SiO₂) nanoparticles, alpha olefin sulfonate (AOS) and sodium dodecyl sulfate (SDS), on foam stability and apparent viscosity was carried out. The experiments were conducted with the 2D Hele-Shaw cell at high foam qualities (80%–98%). Influence of AOS on the interaction between the LB foam and oil was also investigated. Results showed that the SiO₂-LB foam apparent viscosity decreased with increasing surfactant concentration from 0.1 wt% to 0.3 wt%. 0.1 wt% SiO₂ was the optimum concentration and increased the 0.1 wt% LB foam stability by 108.65% at 96% foam quality. In the presence of co-surfactants, the most stable foam, with the highest apparent viscosity, was generated by AOS/LB solution at a ratio of 9:1. The emulsified crude oil did not imbibe into AOS-LB foam lamellae. Instead, oil was redirected into the plateau borders where the accumulated oil drops delayed the rate of film thinning, bubble coalescence and coarsening.

月桂基甜菜碱（LB）作为两性表面活性剂，带有正电荷和负电荷，应该能够通过与纳米颗粒和辅助表面活性剂的静电相互作用产生稳定的泡沫。但是，以前没有尝试研究纳米颗粒和其他辅助表面活性剂对LB稳定泡沫的稳定性和表观粘度的影响。在这项研究中，对二氧化硅（SiO ₂）纳米粒子，α烯烃磺酸盐（AOS）和十二烷基硫酸钠（SDS）对泡沫稳定性和表观粘度的影响进行了深入研究。实验是在高泡沫质量（80％–98％）的二维Hele-Shaw池上进行的。还研究了AOS对LB泡沫和油之间相互作用的影响。结果表明，SiO_2- LB泡沫的表观粘度随表面活性剂浓度从0.1重量％增加至0.3重量％而降低。0.1 wt％的SiO ₂是最佳浓度，在96％的泡沫质量下，0.1 wt％的LB泡沫稳定性提高了108.65％。在存在辅助表面活性剂的情况下，AOS / LB溶液以9：1的比例生成了具有最高表观粘度的最稳定的泡沫。乳化的原油不吸收到AOS-LB泡沫薄片中。取而代之的是，将油重新引导到高原边界，在那里积聚的油滴延迟了薄膜变薄，气泡聚结和变粗的速度。