Abstract: Decyl polyglycoside sulfonate (C₁₀APGS) was prepared with decyl polyglycoside (C₁₀APG) and sodium 3-chloro-2-hydroxypropanesulfonate as starting materials.Chemical structure of the product was characterized by FT-IR and ESI-MS,and the foam performance,adsorption capacity of the product were also investigated.Results showed that the foaming power and foam stability of C₁₀APGS are very well,and the foaming power and the draining half-life period increase with the increase of C₁₀APGS mass fraction,while as C₁₀APGS mass fraction exceeds 0.4% the trend of the increment of the foaming power becomes slower.As the mass fraction of the divalent salts increases,the foaming power changes insignificantly,while the foam stability drops significantly.Even in case that the mass fraction of the divalent salts achieves up to 8%,C₁₀APGS still displays good salt tolerance.The adsorption loss of C₁₀APGS reduces by 14.4% as comparing with that of C₁₀APG and can be used as a rather satisfiable component in foam blended flooding agent for application in high salinity crude oil mines.

Key words: foaming agent, decyl polyglycoside sulfonate, foam performance, adsorption capacity