界面张力

Firstly, to the particulate filled Polyurethane composites, we have detected the contact angle between test solvent and filler or polymer matrix by the surface analysis. The surface tension, polar force parameter of the surface tension, apolar force parameter of the surface tension and polar fraction had been calculated.

通过表面分析的方法，测出参比液在基体与填料表面的接触角θ，计算出其表面张力γ_s、表面张力的极性分量γ_s~p、非极性分量γ_s~d、极性分数P；并由此估算出了基体与填料所形成的界面的界面张力γ_、粘附功W_a、裂纹能γ_G。

The results show that the interfacial tension of polymer solution/asphaltene model oil increases because of the existence of polymer.

用挂片法和双锥摆法测定了聚合物溶液／沥青质模拟油体系的界面张力和界面剪切粘度，并对聚合物浓度对其的影响进行了分析。

The interfacial tension and interfacial shear viscosity of polymer solution/asphaltene model oil were measured respectively by Wilhelmy method and biconical bob method.

用挂片法和双锥摆法测定了聚合物溶液/沥青质模拟油体系的界面张力和界面剪切粘度，并对聚合物浓度对其的影响进行了分析。

The dilational viscoelastic properties of partly hydrolyzed polyacrylamide and alkyl benzene sulfonate in the absence or presence of electrolyte were investigated at the decane water interface by means of longitudinal method and the interfacial tension relaxation method.

采用小幅低频振荡和界面张力弛豫技术，研究了部分水解聚丙烯酰胺(Mo-4000)和阴离子表面活性剂2-丙基-4，5-二庚基苯磺酸钠(377)体系在癸烷/水界面上的扩张黏弹性质，并考察了电解质对体系界面流变性质的影响。

The diffusion of mass or heat across two phases is extensively involved in chemical processes. Because of the effect of this kind of diffusion, there will be a inhomogeneous distribution of material concentration and then a gradient of interfacial tension will be occured on the interface of the two phases. When the gradient tends to a certain value, the natural convection would be induced derivatively, and orderly convective cells would appear in the system simultaneously. This is the so-called Marangoni phenomenon.

在化工过程中，广泛涉及到两相间的质量或热量扩散，由于这种扩散的作用，将在相界面处产生物质浓度的不均匀分布，从而出现界面张力梯度，这种梯度达到一定值以后，将出现派生的自然对流运动，并且在系统中呈现有序的对流胞结构，这就是所谓的Marangoni现象。

Clearly, the structure of the surfactant at the interface plays an important role in reducing the interfacial tension.

可见，表面活性剂在界面处的结构对降低界面张力起到重要的作用。

The relation of interfacial adsorption equilibrium in the solution system was respectively tested and calculated with Gibbs equation and dynamic method .The conclusion showed that (1) the experiment result of dynamic method with was highly in coordination with the value which from theoretical calculation.(2) The surfactant molecule was in arrangement of monomolecular layer at the gas-liquid interface.

用吊环法测定了十二烷基硫酸钠水溶液不同浓度与其界面张力的关系，拟合得到的回归方程为σ=-0.9523 ln ~2C-24.534 ln C-81.411，同时还测得其临界胶束浓度值CMC为6.5×10~(-3M，运用吉布斯等温方程和动态法分别计算和测定了该溶液系统的界面吸附平衡关系，结论表明：(1)动态法测定结果基本吻合吉布斯方程的理论计算；(2)表面活性剂分子在气—液两相界面是以单分子层形式定向有序排列的。

The OWC properties are measured with interfacial tensiometer,surface viscoelasticity tool and Zeta potential tool for the research on the influence of interfacial properties on stability of emulsion.

应用界面张力仪、表面粘弹性仪和Zeta电位仪测定了油水界面性质，研究了界面性质对乳状液稳定性的影响。

Using interfacial tensiometer, surface viscoelasticity meter and Zeta potentiometer to analyze the interface features of partially hydrolyzed polyacrylamide solution and simulated oil of crude oil in Daqing Oilfield, as well as the influences of solid particles on the interface.

采用界面张力仪、表面粘弹性仪和Zeta电位仪研究了部分水解聚丙烯酰胺溶液与大庆原油模拟油之间界面性质以及固体颗粒对这些界面性质的影响。

Chan and D.O. Shah, in which Klearfac AA-270 was used. OPP-n shwwed broadening effects for crude oil/ASP systems. OPP-10 can be conveniently used at high salinity, while OPP-4 used at ...

对克拉玛依原油／ASP复合体系，亦有展宽作用，OPP－10使界面张力向高盐度区单调下降，而OPP－4可使低张力区在较低盐度区展宽。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。