活性剂

The XRD analysis revealed that the relative pure nickel metal products with an average size of 12.6 nm could be obtained using PVA as surfactant, a mixture of nickel and nickel sesquioxide products with an average size of 25 nm was obtained using DTAB as surfactant.

结果表明：以PVA作表面活性剂得到相对纯的纳米镍粉，平均粒径约为12.6nm；而以DTAB为表面活性剂得到镍和三氧化二镍的混合物，平均粒径约为25nm；采用PVA为表面活性剂在产品的纯度和粒度上都优于DTAB。

Different mechanisms and model of the sorption of organic compounds by soli /sediment in combined polluted environment were reviewed, including many factors which influence the sorption.

本文评述了复合污染中有机物在土壤/沉积物上的吸附机理及影响吸附的主要因素，主要论述了共存物质及环境条件对有机物吸附行为的影响，同时，总结了表面活性剂在土壤/沉积物上的吸附机理和吸附模型，探讨了影响表面活性剂吸附的因素，评述了表面活性剂对有机物在土壤/沉积物上吸附行为的影响及机理。

Biosurfactant is a high surface-active agent synthesized by microorganism. Compared with chemical surfactant, it has a low toxicity to ecological system and can be easily decomposed.

生物表面活性剂是由微生物产生的具有高表面活性的生物分子，相对于化学合成的表面活性剂，生物表面活性剂对生态系统的毒性较低，且可生物降解。

The dispersion behavior of ultrafine talc in aqueous system was investigated by the sedimentation test. The dispersion effects of cationic surfactant and some anionic surfactants with different hydrophilic ionogens were studied. By testing the changes of Zeta potential and the dispersion rate of the system with the addition of surfactant, the dispersion mechanism of dispersants was discussed.

采用沉降法考察了阳离子表面活性剂和几种亲水基不同的阴离子表面活性剂在水介质中对微细滑石颗粒的分散效果；通过测试加入表面活性剂前后颗粒表面Zeta电位、体系分散率变化，探讨了分散剂的作用机理。

The category of surfactant and the action of it in the wastepaper deinking was introduced.

综述了表面活性剂的性质及分类，以及表面活性剂在废纸脱墨各阶段的作用，并对以后脱墨用表面活性剂的发展趋势提出了一些看法。

The intermixture of positive ion surfactant Cetyltrimethyl Ammonium Bromide and zwitterion surfactant N,N-C12BE was used to modify the natural zeolite. Correlative parameters of modified zeolite adsorbing Cr and phenol from wastewater were studied.

摘 要：用阳离子表面活性剂十六烷基三甲基溴化铵与两性离子表面活性剂 N，N-二甲基十二烷基甜菜碱复配的混合表面活性剂对天然沸石改性，研究了改性沸石吸附废水中 Cr 和苯酚的相关参数。

The experiment was in progress in dyadic foam of intermittence flotation tower,to the positive ion type,the negative ion type,type and amphiprotic type,etc.

结果：泡沫浮选法去除废水中铬离子的表面活性剂，阳离子型和非离子型表面活性剂效果最差，阴离子表面活性剂效果最好。

Research had also been carried out upon the release circumstance of daphnetin contained in the vesicles in simulated gastric and intestinal fluid.

选择生理上能接受的2种表面活性剂，即仿生磷酯阳离子表面活性剂PTA与阴离子表面活性剂SDS，按一定比例复配能自发形成稳定性囊泡，用负染色透射电镜和动态光散射对其进行表征，并以其作为药物瑞香素的载体开展其组成、温度对包封率的影响，以及在模拟胃液及模拟肠液中的释放情况的研究。

The formation and characters of the vesicles were demonstrated by negative-staining TEM and dynamic light scattering. Using the vesicles as the delivery of daphnetin, we carried out the research on the effect of formation and temperature upon entrapment efficiency. Research had also been carried out upon the release circumstance of daphnetin contained in the vesicles in simulated gastric and intestinal fluid.

选择生理上能接受的2种表面活性剂，即仿生磷酯阳离子表面活性剂PTA与阴离子表面活性剂SDS，按一定比例复配能自发形成稳定性囊泡，用负染色透射电镜和动态光散射对其进行表征，并以其作为药物瑞香素的载体开展其组成、温度对包封率的影响，以及在模拟胃液及模拟肠液中的释放情况的研究。

The intermediate decyl-glycidol ether of Gemini phosphate surfactant was synthesized with decanol and epichlorohydrin in the presence of phase-transfer catalyst; the intermediate decyl digomeric glycol of Gemini phosphate surfactant was prepared by opening ring reaction of decyl glycide ether and glycol in the presence of potassium as catalyst; and the influence of type and dosage of phase-transfer catalysts was studied.

以正癸醇与环氧氯丙烷为原料在相转移催化剂存在的条件下合成Gemini磷酸酯表面活性剂的中间体I-正癸基缩水甘油醚，讨论催化剂种类及用量对反应的影响；以乙二醇和正癸基缩水甘油醚为原料，金属钾为催化剂合成Gemini磷酸酯表面活性剂的中间体Ⅱ-正癸基低聚二醇，讨论催化剂种类与用量对反应的影响；以P2O5与正癸基低聚二醇为原料合成Gemini磷酸酯表面活性剂，讨论投料比、反应温度和反应时间等因素对反应的影响。

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。