表面活性剂

The adsorptive properties of gas-liquid interface and liquid-solid interface of bisquaternary ammonium salt surfactant are used as object to study the surface tension of BQAS changing with its concentration,adsorptive isothermal line,saturated adsorption and minimum balance time.

以研究双季铵盐型表面活性剂BQAS吸附特性为目的，从溶液表面张力随浓度的变化、饱和吸附量等方面研究了双季铵盐BQAS的气液界面吸附特性；用双季铵盐BQAS和砂岩体系，在液固比一定时，从时间、浓度对静态吸附量的影响方面研究了双季铵盐BQAS的液固界面吸附特性。

The effect of surfactant concentration,, on the apparent kinetic constants of lipase in AOT/isooctane reversed micelles was studied.

研究了表面活性剂浓度对AOT／异辛烷反胶团中脂酶表观动力学参数的影响。

A process for making an electronic device which comprises applying a nonaqueous plate-resistant ink by ink jet printing to selected areas of a dielectric substrate, optionally laminated with an electrically conductive metal, exposing the plate resistant ink to actinic and/or particle beam radiation to effect polymerisation, adding one or more metal layers by electrolytic or electroless deposition, the upper layer of which is an etchresistant metal, removing the polymerised plate-resistant ink with alkali and finally removing the electrically conductive metal which are optionally directly laminated to the dielectric substrate and not protected by an upper layer of etch-resistant metal by chemical etching wherein the plate-resistant ink is substantially solvent-free and comprises: A 30 to 90 parts acrylate functional monomers free from acid groups comprising mono- or higher functionality wherein 5 to 95% by weight are mono-functional monomers; B 1 to 30 parts acrylate functional monomer containing one or more acid groups; C 0 to 20 parts polymer or prepolymer; D 0 to 20 parts radical initiator; E 0 to 5 parts colorant; F 0 to 5 parts surfactant; and where the ink has a viscosity of not greater than 30 cPs at 40 DEG C and all parts are by weight.

一种制备电子装置的方法，所述方法包括以下步骤：通过喷墨印刷在任选层压了一种或多种导电金属的介电底材的选定区域涂覆非水的阻沉积油墨，将所述阻沉积油墨暴露在光化辐射和/或微粒束辐射中以完成聚合，通过电解沉积或无电沉积增加一层或多层金属层，其中最上层的金属层为一种或多种阻蚀刻金属，用碱除去聚合的阻沉积油墨，最后通过化学蚀刻将任选直接层压在所述介电底材上并且不被一种或多种阻蚀刻金属的上层保护的导电金属除去，其中所述阻沉积油墨基本不含溶剂，并且包含以下组分：A30-90份不含酸基团的丙烯酸酯功能性单体，所述单体包括单官能或多官能单体，其中5-95％重量为单官能单体；B1-30份包含一个或多个酸基团的丙烯酸酯功能性单体；C0-20份聚合物或预聚物；D0-20份自由基引发剂；E0-5份着色剂；和F0-5份表面活性剂；其中所述油墨的粘度在40℃下不高于30cPs，并且所有的份数以重量计。

Some factors such as water, surfactants and temperature had important influence on it.

水分及表面活性剂、温度等因素对电导率有重要的影响。

Other organic surfactants were used to control the sizes and the shapes of the products.

此外，还应用其他的表面活性剂对产物的尺寸和微观形貌进行控制。

With the implement of new standards, the development of surfactants exists opportunity and challenge.

这些法规的普及将对表面活性剂的发展提出新的要求，对生产商来说，既是机遇也是挑战。

So the efficiency of pump-treat method can be improved by the surfactants...

同时，表面活性剂对NAPLs的生物降解也有一定影响。

The biodegradation of surfactants in the environment .

表面活性剂的结构与生物降解性的关系。

In order to control the release better, the formulation can be added with surfactants.

为更好地控制缓释释放，制剂中还可以加入表面活性剂。

In this thesis, the interaction of DR and DDS with surfactants was investigated.

本论文的研究结果表明：DR和DDS的热稳定性在阴离子表面活性剂十二烷基硫酸钠水溶液中得到显著提高。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。