表面活性剂

In this study, the CPE processes of four different kinds of polyaromatic hydrocarbons, acenaphthene, anthracene, phenanthrene and pyrene, with two kinds of silicone surfactants, DC-193 and DC-190, were studied separately, and four different assisting methods for the phase separation of the CPE process including heating at a higher temperature, adding salts, centrifugation and stirring were introduced, respectively.

今利用两种聚醚型有机硅表面活性剂DC-193和DC-190，对蒽、菲、芘和苊四种多环芳烃进行浊点萃取研究，分别使用加热、加盐、离心和搅拌等辅助方法改变相分离过程的速度。通过测定表面活性剂富集相的体积百分率Vs/随时间的变化和最终的萃取率，研究上述四种不同辅助方法对相分离行为和萃取性能的影响。

The influence of polymerization degree and alcoholysis degree of polyvinyl alcohol, the ratio of Span - 20 to Tween - 20, the amount of polyvinyl alcohol, the amount of water - soluble inhibitor, pretreatment and after - treatment processes and et al on the hydrophobic property and stability of the water -repellent is investigated.

研制了一种以聚乙烯醇、2种非离子表面活性剂——Span-20和Tween-20、水溶性缓蚀剂等为原料的水性憎水剂；考察了聚乙烯醇的聚合度和醇解度、2种非离子表面活性剂之间的配比、聚乙烯醇含量、乳化剂含量、水溶性缓蚀剂含量、预处理和后处理工序等因素对憎水剂憎水效果及稳定性的影响。

The relationship between rhological property and concentration of amphoteric surfactants was discussed,and the method to adjust rhoogical property of mixed systems was proposed,too .

讨论了两性表面活性剂的流变性与表面活性剂浓度之间的关系，并给出了调节混合体系流变性的方法。

In this paper,the drag-reducing surfactant solution flows in a fully developed turbulent channel flow have been analyzed experimentally using Phase Doppler Anemometry and thermocouples in order to study the temperature fluctuations and heat transfer characteristics on the drag-reducing and heat transfer reduction phenomena of the surfactant solution flows.

该文针对在水中添加阳离子表面活性剂产生的减阻作用同时降低传热性能的现象，应用相位多普勒激光测量系统和热电偶温度测量系统对二维流道内表面活性剂减阻流体热边界层内的湍流温度脉动以及传热特性进行了实验研究。

The research progress on the formation of ordered molecular assembly in imidazolium ILs, such as liquid crystal, micelle, vesicle, microemulsion was reviewed. ILs can act as solvents, co-solvents, or surfactants to form liquid crystals. They also can be substituted for polar, apolar, or surfactant components in microemulsion to prepare various microemulsion systems ILs-in-oil, oil-in-ILs and bicontinuous B.

咪唑类离子液体可以作为溶剂、助溶剂和表面活性剂形成液晶；离子液体可以分别取代微乳液体系中的极性组分、非极性组分或表面活性剂，形成油包离子液体、离子液体包油和双连续的新型微乳液体系。

We discussed that the production project of making use of heavy oil to yield asphaltum andSurfactants and probe into the heavy oilof Daqing Peripheral Oilfields, whether or not it suit to produce theasphaltum and Surfactants, we studied the production technology of the asphaltum and Surfactan...

对利用稠油生产沥青、表面活性剂等产品的方案进行探讨，探讨大庆外围油田稠油是否适合生产沥青和表面活性剂，并对其生产工艺进行了研究。

In this paper, we synthesized two kinds of new carboxylate Gemini surfactants and one of new bis-quaternary ammonium salt.

本论文共合成了两种新型羧酸盐Gemini 表面活性剂和一种新型季铵盐Gemini 表面活性剂。

Different types of surfactant have different adsorption on oil sand, and carboxylate surfactant has the least adsorption.

不同类型表面活性剂在天然油砂上的吸附量存在差异，羧酸盐类表面活性剂在天然油砂上的吸附量最低。

Alkyl diphenyl ether disulfonate is a serie of anionic surfactants with many functions. It has two hydrophilic head groups and different from conventional surfactants.

烷基二苯醚二磺酸钠是一类在结构和性能上有别于传统表面活性剂的多功能性双亲水基型阴离子表面活性剂，具有卓越的表面化学性能及应用性能。

CTAB could form well-stabilized films on the surface of HPAM solution, this process is dependent on the linear density and conformation of the polymer chain; it is reasonable to suppose that a complex, which is surface active, was formed between CTAB and HPAM.

阳离子表面活性剂能在HPAM水溶液的表面成膜，表面活性剂的成膜能力与它本身的HLB有关，还与亚相中HPAM的线性电荷密度以及高分子在溶液中的分子构象有关。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。