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采用动态泡沫扫描法研究了双直链烷基硫酸盐型孪连表面活性剂水溶液的泡沫性能,并考察了添加氯化钠和疏水缔合水溶性聚丙烯酰胺(HMPAM)后对其泡沫性能的影响。结果表明,此系列孪连表面活性剂具有良好的泡沫性能;随着联接基长度的增加,表面活性剂的起泡能力略有降低,泡沫的稳定性能却明显下降;随着温度升高,泡沫半衰期显著降低;无机盐的加入使表面活性剂的起泡能力减弱,而泡沫稳定性随无机盐浓度的增加先升高后降低;HMPAM的加入明显增强了泡沫稳定性。
The foam properties of double-chain alkyl sulfate-type gemini surfactant aqueous solution were investigated by dynamic foam scanning. The effects of adding sodium chloride and hydrophobically associating water-soluble polyacrylamide (HMPAM) influences. The results show that this series of gemini surfactant has a good foam properties; with the increase of the length of the linker, the foaming ability of the surfactant slightly decreases, but the stability of the foam decreases obviously; as the temperature increases, the foam The half life is significantly reduced; the addition of inorganic salts weakens the foaming ability of the surfactant, while the foam stability first increases and then decreases with the increase of the inorganic salt concentration; the addition of HMPAM significantly enhances the foam stability.