两亲聚合物泡沫稳定性及影响因素研究

Study on Stability of Amphiphilic Polymer Foam and its Influencing Factors

针对泡沫驱两亲聚合物起泡剂的泡沫性能及影响因素开展了室内实验研究。结果表明:与普通表面活性剂泡沫相比,两亲聚合物泡沫的起泡体积较小,但其稳定性要远远优于表面活性剂泡沫;两亲聚合物泡沫性能随着两亲聚合物浓度的变化存在一个最优值,炼化Ⅰ型两亲聚合物在浓度为1.5 g/L时,其泡沫性能最优,且该泡沫体系具有良好的耐温、抗盐性;在高剪切下(转速大于4000 r/min)或煤油含量超过20%后,该泡沫体系的泡沫性能变差。

In this paper, the properties and the influencing factors of the foam, formed by amphiphilic polymers, were studied. The results showed that the volume of amphiphilic polymer foam were smaller in contrast to that of the ordinary surfactant foam, furthermore, the stability of amphiphilic polymer foam was much better than the latter. The foam properties varied with the concentration of amphiphilic polymer, and the foam performance of type I amphiphilie polymer would be best at the concentration of 1. 5 g/L, which had good heat-resistance and salt-tolerance. However, the foam performance would become worse under high shearing （the rotation speed 〉 4000 r/min） or when the content of kerosene exceeded 20%.