查询词典 surfactant

In this paper, a novel surfactant-free microemulsion is reported, which is composed of furaldehyde, water and ethanol without a traditional surfactant of the amphiphilic molecular structure.

本文报道了一种不含表面活性剂的微乳液体系，由呋喃甲醛，水和乙醇三组分构成，不含传统的表面活性剂。

With the theory of Hydrophile-lipophile Balance, it is found that the most suitable anion surfactant for preparation of PPy is heptanoic acid, and get a conclusion that there is a best matching relation between the concentration of surfactant and the state of the porous substrate.

根据亲水亲油平衡理论，找出了最适合制备聚吡咯薄膜的阴离子表面活性剂——庚酸，并且通过试验得出了表面活性剂浓度与基底不同的多孔状态存在最佳匹配关系的结论。

The protein envelop as well as the lipide membrane of HSV could be destroyed by surfactant, which destroys the DNA of HSV. Thus HSV loses the ability of infection. Sodium dodecyl sulfate is an anionic surfactant with biologic envelop denaturing potency.

HSV 的外部含脂质和蛋白质的包膜易为表面活性剂所破坏，引起胞膜通透性改变，使 HSV的 DNA 被破坏，从而失去感染能力。

The diagrams indicate that microemulsions can only be formed with a certain Combination of SDS and n-bulanol. A stretch of microemulsion domain changing continuously from direct micelles to bicontinuous structures and to reverse micelles exists when the surfactant to cosurfactant ratio is comparatively low, while the direct micelle area is separated from the reverse micelle area by a mesomorphic medium when the surfactant to cosurfactant ratio is comparatively high.

结果表明：只有当SDS与正丁醇配比在一定范围内才形成微乳状液；当SDS含量较低时，存在由正胶束经过双连续结构到逆胶束的大片微乳状液区；当SDS含量较高时，正胶束和逆胶束微乳状液之间被液晶相所分割。

Phosphate, Metasilicate, Nonionic Surfactant, Anionic Surfactant, Dye

磷酸盐，硅酸盐，非离子表面活性剂，阴离子表面活性剂，颜料

To the properties of the surfactant, such as surfactant chain length,solution chemistry and micellar solubilization of trimethylbenzene.

与此机理相一致的是，表面活性剂的某些特性，如有机链的长度，溶液化学性质，三甲苯的胶束增溶作用与合成的介孔材料维数有密切联系。

It is especially discussed that the principle, operation process and effects of the operation parameters on the characteristic of the products when the hydrophilic drug micronized with the supercritical assisted atomization which is an improvement on the supercritical anti-solvent technology. It is also introduced that the embedment of hydrophobic drug into biodegradable materials with the use of surfactant as well as the effect of different molecular weight of carrier and different ratio of complex carrier on the characteristic of products is made. It is pointed out that the use of surfactant will improve the micronization of microparticles of the hydrophobic drugs.

在药物微粉化方面，着重介绍了超临界辅助原子化法对水溶性药物的处理，包括该方法的原理、操作方法以及操作参数对产品性能的影响，证明该方法用于改善水溶性药物的微粉化具有良好的效果；在制备药物微球方面，重点介绍了不同操作条件和不同分子质量的载体、不同配比的复合载体对药物微球性能的影响以及表面活性剂在亲脂性及离子型药物微球制备中的应用，指出添加表面活性剂将更有利于得到该类药物的微球。

The evolution of the self-organization structure for multicomponent systems containing amphiphilic moleculae. We have gotten the rule about effects of the construction of the surfactant molecula and the interaction strengths among the surfactant, oil and water moleculae on the self-organization structure after the phase separation.

研究含有双亲分子的多元系统的自组织结构演化规律，得到表面活性剂分子与水、油分子的相互作用强度以及表面活性分子的构形对分离成的自组织结构的影响规律。

The magnetite with a mean diameter of 8nm was prepared by chemical coprecipitation methods. By the addition of nonionized oleic acid to the suspension of magnetite in solution during precipitation, the magnetite nanoparticles were coated with a double surfactant layer. A gel-like precipitated precursor is then formed because of the hydrophobic interaction among those coated units. By transferring of this precursor to an organic solvent, the surfactant double layer on Fe〓O〓 nanoparticles reduces to one; however, it still remains as a double layer by transferring to an alkaline aqueous solution. Both these cases give in stable colloids of superparamagnetic Fe〓O〓 nanoparticles.

从解决无机磁性Fe〓O〓颗粒与有机烯类单体的相容性入手，采用化学共沉淀法，制备了平均直径为8nm的超顺磁性Fe〓O〓颗粒，在制备过程中以非离子形式引入油酸，在Fe〓O〓颗粒表面形成一个具有双层结构的疏水外壳，并通过疏水相互作用凝聚成磁性Fe〓O〓凝胶，能够以单分子层结构形式溶解在非极性溶剂中，也能够以双分子层结构形式溶解在碱性水溶液中，形成稳定的超顺磁性Fe〓O〓溶胶。

The effects of many parameters, such as the amount of surfactant, airflow rates, pH, NaCl, ethanol and temperature on the solvent sublation were studied. Experimental results showed that a ratio of surfactant to Pb-dithizone complex (2∶1) was the most effective for the removal, with over 97.4% Pb removed from the aqueous solution in 40 min by solvent sublation, at the value of pH 12.6.The solvent sublation process followed first order kinetics. A characteristic parameter, apparent activation energy of attachment of the sublate to bubbles, was estimated at a value of 2.08 kJ/mol.

结果表明，当表面活性剂与硝酸铅物质的量之比为2∶1时，铅去除率达97.4％；体系去除率在pH值为12.6时最高；有机溶剂的影响不明显；少量的乙醇可提高其去除率和去除速率，但过多会产生抑制作用；适量的NaCl能提高体系去除率，但随着浓度的提高呈现下降趋势；去除速率随气流速率增加而增加，体系去除率随温度升高而递增；反应过程遵从一级动力学，表观活化能为2.08 kJ/mol。

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。