查询词典 surfactants

In different grinding stage, the grind-aid effect of different type of surfactants is not identical.

不同类助磨剂在不同粉磨阶段作用效果不一，因此不同的助磨剂表征方法不同。

OBJECTIVE To investigate the relationship between the surface properties and the cell uptake of stearic acid solid lipid nanoparticles modified with different surfactants.

目的 研究不同表面活性剂制备的硬脂酸纳米粒混悬液的表面性质与体外细胞摄取之间的关系。

A new family of sulfonate surfactants, in which the sulfonyl group is attached to one of the alkyl chains, has gained interest owing to their biodegradability, low sensitivity to water hardness, foaming ability, and lower skin irritability than the conventional alkylbenzene sulfonate.

一个新家庭的盐表面活性剂，sulfonyl集团隶属于链条之一，已获得利息烷基是由于它们生物降解性、低敏感性对储层水硬度、发泡能力和较低的皮肤过敏性比传统的烷基苯磺酸盐黄。

In order to improve their water solubility, 4"-fatty amido-3"-sodium carboxylate azobenzene-4-sodium sulfonates were synthesized. They are azo compounds with two hydrophilic groups of carboxyl and sulfonyl. They decrease the surface tension in dilute solution slowly, and show some surfactivity, but are not surfactants. The probable reason is their relative strong hydrophile. Furthermore, their colors are not fresh and far from our destination.

为了改善其水溶性，改用对氨基苯甲酸为原料合成了4′-脂肪酰氨基-3′-羧酸钠偶氮苯-4-磺酸钠盐，以偶氮结构为主的亲水基团上连有羧酸基和磺酸基两个亲水性较强的基团，但可能由于其亲水性太强，在稀溶液中只能缓慢地降低溶液的表面张力，具有一定的表面活性，但不是表面活性剂，而且颜色不鲜艳，距离我们的目标较远。

SURFACTANTS: Thonzonium bromide is a surface-active agent that promotes tissue contact by dispersion and penetration of the cellular debris and exudate.

Thonzonium甲基溴是一种表面活性剂，促进组织联系的分散和渗透力的细胞碎片和渗出液。

In chapter three, various theories and experience on the dispersion of nano-powders proposed by former researchers were generalized and reviewed. Technical standards and experimental process for determining technological parameters were suggested for the dispersion of nano-scaled metal oxides in aqueous medium according to their surface wettability, surface charge, the dependence of surface charge on pH and the compatibility of surfactants with pH and pH adjusting agents. Based on these suggested standards and experimental method, highly stable and dispersive aqueous suspensoid of nm-ZnO, nm-TiO〓, nm-Co〓O〓 and nm-MnO powders were prepared successfully and surface modification on these nano-powders was also achieved.

本文第三章通过大量的文献调研，归纳总结了前人在纳米粒子分散技术方面的理论和经验，并在此基础上根据纳米氧化物粉体的表面润湿性、表面电性及其与分散介质pH值的关系、表面活性剂及其与pH调节剂的配伍关系设计了纳米氧化物水分散体系的工艺规范以及确定工艺参数的通用实验步骤，成功地制备了纳米氧化锌、纳米二氧化钛、纳米氧化钴和纳米氧化锰的高稳定分散悬浮液并实现了干粉体的表面改性，为纳米材料在氧化锌压敏电阻中的应用创造了第二个前提条件。

Hydrothermal treatment and pH value swing could shift the micropore distribution of alumina to macroporous direction, and decreased surface areas; the surfactants addition could shift the micropore distribution of alumina to microporous direction, and increase surface areas.

其中pH值交替变动和水热处理使氧化铝微孔分布向大孔方向迁移，比表面降低；加入表面活性剂使氧化铝微孔分布向小孔方向迁移，比表面增加，制备出了低比表面≤150平方公尺g^(-1和高比表面≥250平方公尺g^(-1的大孔容氧化铝载体。

Six different kinds of surfactants' effect were investigated,0.2%Tween-80 is chosen as synergist.

硫酸中铁、铜的存在不仅影响产品的外观色泽，其含量也影响到硫酸在电子、试剂、制药等行业中的使用。

As for the long-chained guests such as cationic surfactants with different length of alkyl chain added, they can insert into the CD cavity as a spacer to form a ternary inclusion complex with the host molecule.

同时还发现，化学修饰的环糊精所连发色团与CD形成的"自包结"配合物较相同发光分子与非修饰的环糊精形成的包结物具有更强的结合能力。

Like β-CD, Mβ-CD also forms inclusion complexes with surfactants, but Mβ-CD:S can not accommodate 1-BrN, 2BrN or 1-IN to form the ternary complexes.

但Mβ-CD不能再包络物一个1-BrN或1-IN分子形成三元包络物而产生RTP，化学除氧也观察不到磷光，溶液也不乳化。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。