界面张力

The research results indicated that the viscosity of the autogenetic foam system has good thermal stability, the system has favorable ability to reduce the viscosity and interfacial tension of the heavy oil, the displacement of the system for the heavy oil is good and it has good mobility control ability for the mobility in layers and interlayers,.

研究结果表明，自生泡沫体系粘度具有较好的热稳定性，并具有良好的稠油降粘和降界面张力能力，驱替稠油能力强，具有很强的层内层间流度控制能力。

The properties of the oil displacement using the autogenetic foam combination system have been researched through the viscosity reduction, interfacial tension, thermal stability and rheological experiments.

通过降粘实验、界面张力实验、热稳定性实验以及流变实验研究了自生泡沫复合体系的驱油性质。

So are description of the relationship between pH and corrosivity of AFFF, ts of the surface as well as the interfacial te

建议修改老化试验及泡沫水溶液腐蚀性的判断标准，用更准确的方法测定泡沫液的表面张力和油水界面张力。

The heterogeneously sulfonation products not only own the properties of reacting promptly and high sulfonation degree, but also have good performance in decreasing interface tension and tolerance to calcium ion.

多相磺化产品不仅有反应迅速、磺化度高的特点，在降低界面张力及对钙离子的容忍能力方面亦有不俗的表现，充分说明改变反应体系是具有巨大实用意义的。

The effects of length of hydrocarbon were detected in theory that, along with increase of carbon numbers, surface tensions were increscent gradually and interfacial tensions and cmcs were reduced gradually.

并从理论上考察了不同长度的碳链对表面活性剂性能的影响，随着碳氢链的增长，表面张力呈现增大趋势，临界胶束浓度和界面张力呈减小趋势。

Bisphenol-A polysulfone was used to modify the processability of PPESK and the blends with different compositions were prepared by meltingly extruding on a twin-screw extruder.

采用溶解度参数、差示扫描量热法、界面张力、傅立叶红外、扫描电镜等方法和手段对该共混体系的相行为进行了研究。

The results show that HBA_n (n=9,20,80) series have rather higher surface properties in comparison to their monomeric counterparts.

最后还用动态旋滴法分别测定和分析了HBA_n(n=9，20，80)三种表面活性剂的界面张力。

For TRO there are a little surfacatants whose effect are not good.In this paper,content of sulfonates and composition of alkyl are decided through right design ;under control reaction conditions different alkylbenzene sulfonates are synthesized;Polyreaction catalyst is developed .non-straight high carbon olefine are made through C9-C12 Polyreaction technolgy;clear composition alkylkenzene is sulfanated in falling-film reactor by SO,product can be adjusted,recipe of the surfacate can be used for super-low interfacialtension with Daqing oil -10-3-10-4mN/m,and stablity is good too.According to method issued by Daqing Develop and Explore Research institute,EOR is over 20% in natural core .

本文研究通过烷基苯磺酸盐组成的正确设计，确定了磺酸盐的当量范围和烷基碳数组成和分布；通过对烷基化条件控制，设计合成了不同碳数的直链和支链烷基苯及烷基二甲苯，并用于制备了相应的烷基苯磺酸盐；研制出了新型的烯烃叠合络合催化剂，采用C_9、C_(12)支链烯烃叠合工艺合成了更高碳数的支链烯烃，并进一步合成出相应的烷基苯和烷基二甲苯；以SO_3为磺化剂，通过对磺化条件的选择和控制，采用已知组成的烷基苯混合物进行膜式磺化反应，使合成工艺得以简化；所得磺酸盐组成确定并且可控，最终配方可与大庆原油形成超低界面张力，达10~3～10~(-4)mN/m数量级，且稳定性良好；以合成的烷基苯磺酸盐为主体形成了三元复合驱配方，室内驱油模拟实验表明，按照大庆研究院对复合驱体系活性剂的评价方法，在天然岩芯上的驱油效率在20％以上。

With the results of contact angle and analysis of surface and interface to polychloride, TDI, PF and NBR is proved to attach to the ATH surface to successfully produce the multi-modified layers with the characteristics of polarity transiting gradually from large to small.

通过接触角测量、表面张力及其与PVC界面张力的计算结果表明，TDI、PF、NBR依次在ATH表面成功地形成了极性由大到小、逐步过渡的多层改性层，ATH表面极性随着改性层数的增加而逐步减小。

The results show: in a specific concentration range, the solubility in neutral solution of SOL, as well as the surfactivity, the ability to reduce ITF and the wettability on the condition of non- alkali are better than the lignosulfonate in market.While using as sacrifice agent, the modified lignosulfonate can reduce 60% of the mahogany sulfonate and 50% of the α-alkene sulphonate which both are adsorbed on the oil sand surface.

结果表明在一定浓度范围内，SOL在中性溶液条件下的溶解性、在无碱条件下的表面活性、降界面张力能力、对岩石的润湿性效果优于市场木质素磺酸盐产品；作为牺牲剂使用时，改性磺化木质素能减少石油磺酸盐在油砂表面吸附的60%，减少α-烯烃磺酸盐在油砂表面上吸附的50%。

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。