查询词典 surfactant

The relation of interfacial adsorption equilibrium in the solution system was respectively tested and calculated with Gibbs equation and dynamic method .The conclusion showed that (1) the experiment result of dynamic method with was highly in coordination with the value which from theoretical calculation.(2) The surfactant molecule was in arrangement of monomolecular layer at the gas-liquid interface.

用吊环法测定了十二烷基硫酸钠水溶液不同浓度与其界面张力的关系，拟合得到的回归方程为σ=-0.9523 ln ~2C-24.534 ln C-81.411，同时还测得其临界胶束浓度值CMC为6.5×10~(-3M，运用吉布斯等温方程和动态法分别计算和测定了该溶液系统的界面吸附平衡关系，结论表明：(1)动态法测定结果基本吻合吉布斯方程的理论计算；(2)表面活性剂分子在气—液两相界面是以单分子层形式定向有序排列的。

The experimental results show that hydrophobic association increases obviously with increasing polymer concentration, hydrophobe content, hydrophobic side chain length and temperature. The Critical aggregate concentration of P (AM/NaAA/C8AM) with different hydrophobic content is 1.5~3g/L. Strong association between surfactant sodium dodecyl sulfate and P (AM/NaAA/C8AM) occurs through the formation of mixed micelles. The CMC of SDS is 8×10^(-3)mol/L. Moreover, because of the presence of-COOH group, the terpolymers have pH-responsive characterization. The hydrophobical association changes greatly with increasing pH.

结果表明，随聚合物浓度、疏水单体摩尔分数、疏水侧链长和温度的增加，疏水缔合作用增强；不同疏水单体含量的P(AM/NaAA/C8AM)的临界缔合浓度为1.5~3.0g/L；表面活性剂十二烷基硫酸钠与P(AM/NaAA/C8AM)发生了强烈的疏水相互作用，形成混合胶束，得到SDS的临界胶束浓度为8×l0^(-3)mol/L；由于聚合物链上羟基的存在，使其具有良好的pH敏感性，随pH值的增大，P(AM/NaAA/C8AM)的疏水缔合作用呈现先减弱后恒定再增强的变化。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。

The effect of noncrystalline CeO〓 is similar to surface surfactant.

随粒径的减小，CeO〓吸收峰有蓝移现象，而铒离子的吸收峰没有明显的位移。

It is feasible to overgrow mesoporous MCM-41 on the rough surfaces of the grains. The obtained samples possess the ordered hexagonal mesoporous structure of MCM-41-type molecular sieves. Mesoporous molecular sieves (denoted as MZ-B) with ordered hexagonal structure have been successfully synthesized by the assembly of the precursors from filtrate of alkali-treated ZSM-5 zeolite with CTMABr surfactant micelles in alkaline media based on S+I– static electricity route.

而碱处理ZSM-5沸石得到的滤饼为富含超细化颗粒的晶粒，且晶粒粗糙度很高，因此易于附晶生长介孔分子筛，得到的微孔颗粒表面附晶生长的介孔分子筛，具有很好的长程有序度，为六方排列的孔道结构。

A new powdery ammonium nitrate fuel oil explosive was produced to solve the problems of complicated production process and low explosion energy. The explosive was made of ozocerite,surfactant,gelatinizer and water, which were made into slurry mixed solution at 105-110 ℃, and was dehydrated from -0.07 MPa to -0.09 MPa.

为解决当前粉状铵油炸药生产工艺复杂，爆炸能量低的难题，在105～110 ℃将硝酸铵与地蜡、表面活性剂、吸附剂和水混溶制成浆状混合液，并在真空度为-0.07～-0.09 MPa压力下脱水干燥，研磨过筛，得到粉状铵油炸药。

A surfactant producing strain BS-37 was studied by electrostimulation of a designed electro-operation system composed of pectinate microelectrode arrays.

用自主研制的基于梳状交叉微电极阵列结构的细胞电操作系统，开展产表面活性剂BS-37菌株选育研究。

Accordingly, a block remover system JD-1 is developed, which is composed of organic solvent, surfactant and penetrant.

为此，研制出了有针对性的解堵剂配方体系JD-1，该解堵剂体系主要由有机溶剂、表面活性剂以及渗透剂组成。

The results show that the addition of surfactant shortens induction time and improves formation rate and volumetric proportion, and the volumetric proportion of synthetic hydrate samples can amount to 136~150; the existence of porous medium delays hydrate formation exiguously; the influence of memory effect on gas hydrate formation is notable, the induction time could be shortened by 10~20 times for the experimental system containing residual pentahedral ring structure.

结果表明：表面活性剂的加入缩短了水合物生成诱导时间，提高了生成速度和含气率，合成的水合物样品含气率达到136~150；多孔介质的存在对水合物的生成有较小的延缓；记忆效应对瓦斯水合物生成影响显著，在拥有水合物分解残余五面体环等结构的实验体系中，水合物生成诱导时间缩短10~20倍。

Taking Na_2SnO_3·3H_2O as raw material, organic reagent (pentyl alcohol, butyl alcohol, cyclohexane) as dispersant, and adding anion surfactant (sodium dodecyl alkylbenzen sulfonate, ABS), uniform ultrafine SnO_2 powder is prepared by hydrothermal method using Sn_4 deposition as precursor.

以Na2SnO3·3H2O为原料，有机试剂(正戊醇、正丁醇、环己烷)为分散剂，同时加入阴离子表面活性剂(十二烷基苯磺酸钠，ABS)，以氢氧化锡沉淀为前驱体，用水热法制备了粒度均匀的SnO2超细粉体。

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。