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考察了5种含聚氧乙烯链的居贝特甜菜碱溶液与克拉玛依原油在40℃下的动态界面张力与质量分数间的关系。结果表明,对于质量分数为0.01%～0.2%的GC16(3),GC16(5)和GC16(7)体系及GC20(5)和GC20(9)体系,当碳链长度相同时,随着聚氧乙烯链的增长,界面张力逐渐升高;当聚氧乙烯数相同时,随着碳链长度的增加,界面张力降低。
The relationship between the dynamic interfacial tension and the mass fraction of five kinds of polyoxyethylene chain-containing tetrabetaine and Karamay crude oil at 40 ℃ were investigated. The results showed that for the GC16 (3), GC16 (5) and GC16 (7) systems and GC20 (5) and GC20 (9) systems with mass fraction of 0.01% to 0.2% Oxyethylene chain growth, interfacial tension gradually increased; when the same number of polyoxyethylene, with the carbon chain length increases, the interfacial tension decreases.