查询词典 surfactants

It is suggested that the super low interfacial tension can be obtained with a low concentration of the surfactants by selection of a proper combination system of surfactants.

研究了三元复合驱的技术特点，指出选择合适的表面活性剂复合体系可在低表面活性剂浓度下，获得超低界面张力。

This transaction follows the acquisition of the US-based surfactants manufacturer McIntyre in February 2009 and the recent start up of our new surfactants unit in Roha.

这宗交易是按照2009年2月在美国收购的表面活性剂生产商麦金太尔和最近开始对我们单位的新表面活性剂在柔哈。

Various synthetic methods of the cleavable cyclic acetal-type and ketal-type surfactants were reviewed to provide references for the synthetic route design of these type surfactants and their major research direction in the future were indicated.

综述了可分解型环状缩醛类和缩酮类表面活性剂的各种合成方法，为该类表面活性剂的合成路线设计提供参考，并指明了今后的主要研究方向。

This work examines the dycosacryl, anion, sexual and non-ionic surfactants on water-based ink matozoa stabhity to carbon black particles with an average particle size and electrostatic repulsion force index as a major investigation, on the water-based ink colloidal characteristics with a better understanding of, and find a suitable for water-based ink deink of surfactants.

不梢处事切磋了阳离子、阴离子、两性及否离子暗不天活性剂差火性油墨胶体稳不退性的感化，以炭暗粒子的均匀粒径和静电排不引力作为次要查核指标，差火性油墨胶体溶液共性有了进一步相识，并找到了一种合用于火性油墨废纸脱墨的暗不天活性剂。

And in the process of research for temperature effect on π-A isotherm, it's proved that temperature has a little effect on the insoluble films of synthesized dimeric surfactants. But it has a great effect to the monomer of the surfactants.

另外，在研究温度对它的曲线影响时发现，温度对合成的二聚表面活性剂成膜的影响很小，而这种结构的单体受温度的影响非常明显。

Progress in dissymmetric Gemini surfactants;2. A series of dissymmetric Gemini surfactants with the structure ofC_(12H_(25)CH_(3_(2)N~CH_(2_(4)N~CH_(3_(2)C_mH_(2m+1),denoted as C_(12)-4-C_m(m is 14,16,18),have been synthesized with N,N-dimethylalkylamine and 1,4-dibromobutane as the initial reagents.

以N，N-二甲基脂肪胺和1，4-二溴丁烷为原料，合成了一系列具有不同疏水链的不对称Gemini表面活性剂C12H25(CH3)2N+(CH2)4N+(CH3)2CmH2m+1(C12-4-Cm，m=12，14，16，18)，并通过1H NMR、MS和元素分析等方法鉴定其结构。

The effects of the concentrations of surfactants, NaCl, NaOH, NaHCO3, n-butyl alcohol and molecular structures of surfactants on pentadecyl aryl sulfonates adsorption were investigated.

分别考察了表面活性剂浓度、NaCl、NaOH、NaHCO3、正丁醇浓度及分子结构对表观吸附量的影响。

The preparation of avermyctin emulsions in water was achieved by mixing the surfactants polyoxyethylene (10) octylphenyl ether (OP10), polyoxyethylene styrenated phenol ether (602), and polyoxyethylene (40) castor oil ether (EL-40) with polyoxyethylene (20) castor oil ether (EL-20), separatively. Emulsion stability was investigated by analyzing the hydrophile-lipophile balance, critical micelle concentration, and surface tension. Then, the surfactants of polyoxyethylene polyoxypropylene styrenated phenol ether (1601), block copolymer (L64), and octyl phenyl polyoxyethylene phosphonate were added to the emulsion made by blending EL-40 and EL-20, separatively. The stability of the emulsions was investigated further and discussed in terms of droplet size, surface tension, and zeta potential.

首先将辛基酚聚氧乙烯醚(OP10)、苯乙烯基酚聚氧乙烯醚(602)和蓖麻油聚氧乙烯(40)醚(EL-40)分别与蓖麻油聚氧乙烯(20)醚(EL-20)复配制备阿维菌素水乳剂，从亲水亲油平衡值、临界胶束浓度、表面张力等方面分析了二元表面活性剂复配对乳液稳定性的影响；其次，在EL-40与EL-20复配基础上，将苯乙烯基酚聚氧乙烯聚氧丙烯醚(1601)，嵌段共聚物(L64)和辛基酚聚氧乙烯醚磷酸酯分别添加到乳液中，从粒径、表面张力和zeta电势等方面考察三元表面活性剂复配对乳液稳定性的影响。

Oligomeric surfactants are a new class of amphiphiles including dimeric, trimeric,and tetrameric,etc.These surfactants are made up of two amphiphilic moieties connected at the level of the head groups or very close to the head groups by a spacer group.

低聚表面活性剂包括二聚、三聚、四聚以及具有更高聚合度的两亲分子，它是由两个或两个以上相同或几乎相同的两亲分子，在其头基或靠近头基处由连接基团通过化学键连接在一起构成的。

The results show that the surfactant species impact apparently on the purity, dispersion degree and particle size of the reducing sample. The non-ion surfactants can improve the dissemination of ultrafine silver particles, but both the dispersive effects of cation and anion surfactants are unapparent.

结果表明：表面活性剂的种类对制备样品的纯度、分散性和颗粒大小有着重要的影响，其中阳离子表面活性剂和阴离子表面活性剂的分散效果不明显，非离子表面活性剂的分散效果最好。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。