表面活性剂

MoO3 organosol was obtained by using CTAB to modify the nanoparticles in MoO3, hydrosol and n-pentanol to extract MoO3 nanoparticles modified by CTAB. The effect factors on organosol were discussed extensively.

采用表面活性剂CTAB对MoO_3水溶胶中的纳米粒子进行表面修饰，通过正戊醇萃取制备了MoO_3纳米有机溶胶，对制备有机溶胶的条件进行了系统地研究。

Surface modification of up-conversion luminescence by overcoating with carboxyl groups and its characterization;2. The effects of concentration and adding methods of acrylic acid on the content of carboxyl groups on the magnetic microspheres surface were studied.

利用双层表面活性剂改性的Fe3O4磁流体为种子，通过乳液聚合法考察了苯乙烯或苯乙烯-丙烯酸对Fe3O4磁流体的包覆情况，并考察了丙烯酸浓度及加入时间对磁性微球表面羧基含量的影响。

Efficacy: It takes pure natural plant polypeptide surface activators as principal composition to mildly dissolve dirt on skin surface and residual makeup to rebuild PH values for weak acids for derma membrane, making pores crystal clear and refreshing

功效：以纯天然的植物多肽表面活性剂为主要成份，温和溶解肌肤表面污垢和残留彩妆，重建皮脂膜弱酸的PH值，令毛孔通透清爽

Basic physical-chemistry properties such as solubility ,surface activity, micelle thermodynamic property ,solubilization and the applied properties such as moisture adsorbability ,water retentivity, microemulsion , antibacterial activity , antitumor activity have been studied systematiclly.

研究了该类表面活性剂的基本物化性能如溶解性、表面活性、胶束热力学性质、增溶性能以及吸湿保湿性、微乳性能、抑菌抗菌性、抗肿瘤活性等应用性能。

Aim:To study the coordinate effect of two kinds of Surface Active Agent and sodium fluoride in vivo.

表面活性剂(Surface Active Agent，SAA)由于能降低表面自由能，近年来已被广泛地应用于控制菌斑和防龋［1，2］。

The hydrophobic effect in the process of the transfer of surfactants from aqueous solution to the solid surface has been studied.

研究了表面活性剂从水溶液转移到固体表面过程的疏水效应。

The hydrophobic effect in thd process of transfer of cationic surfactants from aqueous solution to the solid surface has been studied.

讨论了疏水效应在阳离子表面活性剂从水溶液中吸附到活性炭表面这一过程中所起的作用。

Also their solubility and surface activity were not the same with spacer and hydrophobic group changed.

而且它们在有机溶剂中的溶解度和表面活性随着表面活性剂疏水链和间隔链的不同而变化。

The modified sphalerite particles were characterized by dispersion experiments, determination of adsorption rate of oil, FT-IR spectra and X-ray photoelectron spectra.

为了克服锌精矿颗粒在浸出液中的聚团问题，减少有机溶剂的夹带损失，采用表面活性剂海藻酸钠对锌精矿进行表面改性研究。

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。

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。