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，用於制備微粒，二甲基乙醯胺為使用之溶劑，己烷及4%異丙醇為所需之沉淀溶液www.scsdxt.com，界面活性劑并未使用，所得微粒平均粒徑大小為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劑／鹽／模擬油體系與表面活性劑／堿／模擬油體系中油酸甲醴與表面活性劑協(xié)同效應(yīng)機理激情变态另类三级无限。

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.

用氟碳表面活性劑作為&共模板&，使高溫合成介孔分子篩成為可能黄色不卡福利，只要選擇合適的表面活性劑組合淫荡视频免费网站，使氟碳表面活性劑與碳氫表面活性劑可以形成混合膠束且在合成條件下它們與無機物種有合適的相互作用，則有可能在高溫下合成一系列不同結(jié)構(gòu)的穩(wěn)定的介孔分子篩人人摸人人艹人人。

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.

采用高效液相色譜儀研究了水懸浮液中烷基酚聚氧乙烯醚(Witconol NP-100)在福美雙和克百威兩種農(nóng)藥顆粒表面的吸附性能国产精选插逼视频，并探討了表面活性劑在農(nóng)藥顆粒表面的吸附對懸浮種衣劑的物理穩(wěn)定性的影響。

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.

增加離子強度對非離子表面活性劑的吸附無影響五月丁香六月激情欧美综合不卡，卻可略微增加陰離子表面活性劑的吸附欧美性爱电影免费观看。表面活性劑吸附于土壤后對憎水性污染物在土壤/水間的分配行為產(chǎn)生顯著作用。

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.

目的研究孕期被動吸煙對新生大鼠肺表面活性蛋白A久久久国产精品无码aa、B基因表達的影響下载日韩精品视频网站大全免费观看，探討產(chǎn)前被動吸煙對新生大鼠肺損傷的機制。

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

陰離子表面活性劑十二烷基硫酸鈉對水合物儲氣的促進作用比非離子表面活性劑烷基多糖苷強国产一级视频精品。

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.

總之亚洲国产偷窥，本論文系統(tǒng)研究了陽離子表面活性劑和不同水解度的聚丙烯酰胺之間的相互作用，發(fā)現(xiàn)陽離子表面活性劑能在HPAM水溶液表面成膜国产抇久久一精品A片，這和表面活性劑的HLB值有關(guān)清纯唯美第一页，還與HPAM的水解度以及溶液的pH值有關(guān)；兩者之間的靜電引力是主要驅(qū)動力在线观看国产黄色视频高清，這一過程又被表面活性劑鏈之間的疏水相互作用所增強欧美人交视频在线观看。

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%.

針對三元復(fù)合體系，應(yīng)用犧牲劑對油砂預(yù)吸附后www.久久艹，測定表面活性劑在油砂上吸附等溫線国产欧美综合在线一区二区91，結(jié)果可降低表面活性劑吸附損失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.

Donwww.193yw.com； Japanese cedar進行液化處理爱操在线视频精品，所得液化柳杉進一步與異氰酸酯PMDI混合，并添加水為發(fā)泡劑日韩视频网页，有機矽氧烷為界面活性劑狼友网址永久入口，二月桂酸二丁錫為催化劑制造聚胺基甲酸酯發(fā)泡體，探討界面活性劑種類天天做天天躁天天躁、添加量及PMDI與液化柳杉之NCO/莫耳比對所制造PU發(fā)泡體性質(zhì)之影響美女十八黄。