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    • 3. 发明申请
    • Determination of interfacial tensions in supercritical conditions
    • 超临界条件下界面张力的测定
    • US20140238117A1
    • 2014-08-28
    • US14346474
    • 2012-09-21
    • Pierre GuillotMax ChabertAnnie ColinEmmanuel MignardSamuel MarreCyril Aymonier
    • Pierre GuillotMax ChabertAnnie ColinEmmanuel MignardSamuel MarreCyril Aymonier
    • G01N13/02
    • G01N13/02G01N2013/0216G01N2013/0283
    • The invention concerns a method whereby: (E1) an inner liquid phase is made to flow in an inner flow member, and an outer liquid phase in an outer flow member, the flow of the inner liquid phase opening within the flow of the second liquid phase; and the temperature and pressure in the contact area between the first and second liquid phases being such that the first and/or second liquid phase is in the supercritical state, (E2) the flow rate of the inner phase and/or outer phase is varied in such a way as to modify the flow profile, and a torque is identified from values of the flow rates of the inner and outer phases, called transition flow rates, from which the modification in the flow profile occurs (from drops to a jet; or from a jet to drops); (E3 ) from the transition torque identified in step (E2), the value of the interfacial tension between the two inner and outer liquid phases is calculated, or the result obtained is compared to that obtained for another torque in the conditions of steps (E1) and (E2).
    • 本发明涉及一种方法,其特征在于:(E1)使内部液相在内部流动构件中流动,并且外部流动构件中的外部液相在第二液体流动内部液相开口的流动 相; 并且第一和第二液相之间的接触区域中的温度和压力使得第一和/或第二液相处于超临界状态,(E2)内相和/或外相的流速变化 以改变流量分布的方式,并且根据内部和外部相的流速值(称为过渡流速)识别扭矩,流量分布发生变化(从液滴到喷嘴) 或从喷气机滴下); (E3)从步骤(E2)中确定的过渡扭矩计算出两个内部和外部液相之间的界面张力的值,或者将获得的结果与在步骤(E1)中的另一个转矩获得的结果进行比较 )和(E2)。