表面活性剂

Raw material for coconut oil derivatives, natural formulations, its better quality, and its unique patented triple washing system (also used three kinds of selection of different types of high-performance surface-active agent, other brands of only 1-2 kinds of ), detergency strong, and easily over the water, even if a small amount of residue that would not harm the human body.

原料为椰子油衍生物，天然配方材料，其质量更好，其独特的专利三重清洗系统（也可用于3的高性能表面选择不同类型的各种活性剂，只有1-2种其它品牌），去污力强，很容易在水，即使残留物，将不会损害人体少量。

The demulsification mechanism of PAMAM belongs to displacing mechanism. Acylamino groups of PAMAM of integral having strong polarity can take place chemical adsorption with the materials of strong polarity in the exterior of oil drop and be participated in into the membrane, which will result in adsorbed crude surfactant and other active materials to be partially displaced and reduce the intensity of interfacial film between oil and water.

其机理是由于整代的PAMAM具有强极性的酰胺基团，能与油滴表面的强极性的物质发生化学吸咐作用，参与成膜，能把原来吸咐的天然活性剂分子和其它活性物质部分顶替，削弱油水界面膜强度。

We used phospholipid, Epikuron 200, and cholesterol as material to prepare liposome formulation, and discuss the effect of liposome formulation which contain phospholipid and cholesterol or the mix of ionic surfactants such as stearylamine, dicetyl phosphate and nonionic surfactant such as Tween 80. For the three group that physical properties of drug entrapment efficiency, particle size and stability of formulation on day 0, 14, 21 and 30 were respectively compared, and further, we were sieve out optimization of formulation.

我们利用Epikuron 200之磷脂质，以及胆固醇作为制备微脂粒处方之材料，并探讨处方不加或分别加入表面修饰剂stearylaminem与dicetyl phosphate以及非离子界面活性剂Tween 80对处方之影响，且比较此三组微脂粒的物理性质，包含包埋率、粒径大小以及处方在第0、14、21、30天之安定性的变化，进一步筛选出理想之处方。

Thereinto nano-SnO2 powder is admixed with surface negative ion active solvent dodecyl benzene sulfonic acid sodium salt to reach the purpose of surface modifying.

采用化学沉淀法制备的纳米SnO2粉体，通过表面包覆阴离子活性剂十二烷基苯磺酸钠来达到表面修饰的目的。

In order to disclosure the reason why the electrocatalysis activeness and selectivity droped after being used several hundred hours continuously, the x-ray diffraction, scanning electron microscopy and energy dispersive spectroscope have been used to characterize the surface condition variations of Monel metal. The results indicated: Monel metal belongs to the Cu-Ni alloy around the electrolysis experiment.And after being used for 600hr, the surface layer element composition and geometry distribution of the alloy changed, namely in the alloy the Cu element /which superficial free enthalpy was smaller,"concentrated" to the alloy surface,and formed one kind of marble structure microcrystallite.Thus the electrode surface becamed rough a

为了揭示蒙乃尔合金阴极在连续使用数百个小时后电催化活性剂选择性下降的原因，采用X射线衍射仪、电子扫描电镜和电子能谱分析仪对电解实验所用的蒙乃尔阴极材料在电解实验前后的表面状态进行了表征，结果表明：所使用的蒙乃尔合金阴极材料在电解实验前后均属于Cu-Ni合金，使用600hr后，由于表面层元素组成和几何排布发生了变化，即合金中表面自由焓较小的Cu元素向合金表面&富集&，形成一种大理石结构的微晶，表面粗糙、不均一，这是造成其对硝基苯电还原的催化活性及选择性随着使用时间延长而逐渐下降的主要原因，同时也为此类电极的修饰改进提供了方向。

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。