查询词典 surfactant

PLA grafted with PAA has been used as material for preparation of particles. Without using surfactant, and with dimethyl acetamide as solvent and with hexane containing 4% isopropanol as precipitation solution, PLA particles have been prepared with a diameter between 700 and 1250 nm.

聚乳酸接枝聚丙烯酸的高分子化合物，用於制备微粒，二甲基乙醯胺为使用之溶剂，己烷及4%异丙醇为所需之沉淀溶液，界面活性剂并未使用，所得微粒平均粒径大小为700-1250 nm。

The mechanisms responsible for synergism between alkyl benzene sulfonate and methyl oleate in surfactant/brine/model oil and surfactant/alkali/model oil systems were studied.

摘要研究了表面活性剂／盐／模拟油体系与表面活性剂／碱／模拟油体系中油酸甲醴与表面活性剂协同效应机理。

This method should not be limited to the combination of FC-4 with triblock copolymer surfactant, and many mixtures of hydrocarbon and fluorocarbon surfactants can be used if they effectively form a regular mixed micella in solution with suitable interactions between the chosen surfactant and inorganic species.

用氟碳表面活性剂作为&共模板&，使高温合成介孔分子筛成为可能，只要选择合适的表面活性剂组合，使氟碳表面活性剂与碳氢表面活性剂可以形成混合胶束且在合成条件下它们与无机物种有合适的相互作用，则有可能在高温下合成一系列不同结构的稳定的介孔分子筛。

To examine the effect of surfactant adsorption on physical stability of flowable concentrates used for coating seeds with pesticides, high performance liquid chromatography was used to analyze the adsorption of a surfactant (the nonylphenol ether, Witconol NP-100) on thiram and carbofuran particles.

采用高效液相色谱仪研究了水悬浮液中烷基酚聚氧乙烯醚(Witconol NP-100)在福美双和克百威两种农药颗粒表面的吸附性能，并探讨了表面活性剂在农药颗粒表面的吸附对悬浮种衣剂的物理稳定性的影响。

Surfactant sorbed on soil increases the adsorption capacity of the soil; however, the microemulsion composed of surfactant and organic materials decreases the adsorption capacity of the soil.

增加离子强度对非离子表面活性剂的吸附无影响，却可略微增加阴离子表面活性剂的吸附。表面活性剂吸附于土壤后对憎水性污染物在土壤/水间的分配行为产生显著作用。

Objective:To study if prenatal exposure to sidestream cigarette smoke influences the expres-sion of surfactant protein Aand surfactant protein BmRNAs in the lung of rat pups.

目的研究孕期被动吸烟对新生大鼠肺表面活性蛋白A、B基因表达的影响，探讨产前被动吸烟对新生大鼠肺损伤的机制。

Compared with nonionic surfactant, the effect of anionic surfactant on natural gas storage in hydrates is stronger.

阴离子表面活性剂十二烷基硫酸钠对水合物储气的促进作用比非离子表面活性剂烷基多糖苷强。

Based on these results, it is reasonable to assume that cationic surfactant could form well-stabilized films on the surface of partially hydrated polyacrylamide solution, as a result a kind of surface active complex was formed between cationic surfactant and HPAM.

总之，本论文系统研究了阳离子表面活性剂和不同水解度的聚丙烯酰胺之间的相互作用，发现阳离子表面活性剂能在HPAM水溶液表面成膜，这和表面活性剂的HLB值有关，还与HPAM的水解度以及溶液的pH值有关；两者之间的静电引力是主要驱动力，这一过程又被表面活性剂链之间的疏水相互作用所增强。

According to ASP system, sacrificial agent is used to pre-adsorb oil sand and then to measure the isothermal line of surfactant on oil sand. The result shows that the adsorption loss of surfactant is reduced by 40%-60%.

针对三元复合体系，应用牺牲剂对油砂预吸附后，测定表面活性剂在油砂上吸附等温线，结果可降低表面活性剂吸附损失40％～60％。

The liquefied Japanese cedar was blended with PMDI (poly-4, 4'-diphenylmethane diisocyanate), and adding water as a blowing agent, organosiloxane as a surfactant and dibutyl tin dilaurate as a catalyst to prepare the polyurethane foams. The effects of the kind and dosage of surfactant and the molar ratio of NCO/ for PMDI to liquefied Japanese cedar on the properties of PU foams were investigated.

Don； Japanese cedar进行液化处理，所得液化柳杉进一步与异氰酸酯PMDI混合，并添加水为发泡剂，有机矽氧烷为界面活性剂，二月桂酸二丁锡为催化剂制造聚胺基甲酸酯发泡体，探讨界面活性剂种类、添加量及PMDI与液化柳杉之NCO/莫耳比对所制造PU发泡体性质之影响。

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。