电解质对支链甜菜碱动态界面张力行为的研究

Dynamic Interfacial Tension Behavior of Branched Betaine to Electrolyte

考察了4种支链甜菜碱GC16(3)、GC16(5)、GC20(5)和GC20(9)在弱碱碳酸钠及氯化钠的作用下与克拉玛依脱水原油在40℃下的动态界面张力行为。结果表明,在弱碱碳酸钠的作用下,界面张力降低。在氯化钠的作用下,GC16(3)和GC20(9)与克拉玛依原油的动态界面张力变化不大;GC16(5)和GC20(9)随着氯化钠浓度的增加,界面张力升高。

The dynamic interracial tension behaviors between four branched chain betaines GC16（3）, GC16 （5）, GC20（5） and GC20（9） and Karamay crude oil were investigated under the reaction of a weak base such as sodium carbonate and sodium chloride at 40℃. The results showed that the interracial tension re- duced in sodium carbonate. In sodium chloride, the dynamic interracial tension of GC16（3） and GC20（9） showed little change, while the dynamic interracial tension of GC16 （5） and GC20 （9） increased with the in- crease of sodium chloride concentration.