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surfactant     
相关语句
  表面活性剂
     Investigation on Sugar Based Surfactant: Sucrose Esters
     糖基表面活性剂蔗糖酯的研究
短句来源
     Research on the Synthesis, Properties and Applications of a New Metal Complexing Surfactant
     新型金属络合性表面活性剂的合成、性质及应用研究
短句来源
     The Process Fundamentals of Surfactant Assisted Protein Refolding
     表面活性剂辅助蛋白质复性过程机理研究
短句来源
     The Study on Rheological Properties of Visco-Elastic Surfactant Diverting Acid and the Kinetics of Its Acid-Rock Reaction
     粘弹性表面活性剂转向酸体系的流变性能及酸岩反应动力学研究
短句来源
     Applications of High Resolution Liquid State NMR Spectroscopy in Surfactant Chemistry and Neurochemistry
     液体高分辨核磁共振波谱在表面活性剂化学和神经化学研究中的应用
短句来源
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  表面活性物质
     The percentages of three mian active components of pulmonary surfactant were markedly higher during early ARDS. Phosphatidylcholine,phosphatidylglycerol and diphosphatidylglycerol reached to 56 0%±2 8%,9 2%±1 5% and 2 9%±0 7% respectively.
     肺泡表面活性物质主要活性成份磷脂酰胆碱、磷脂酰甘油和二磷脂酰甘油的百分比在ARDS早期升高 ,分别达 5 6 2 %± 2 8%、9 2 %±1 5 %和 2 9%± 0 7%。
短句来源
     In the water sample to be determined, cations can be complexly masked with EDTA, anions such as S~(-2), I~-, S_2O_3~(2-), and some organic reducers and surfactant can all be removed with KMnO_4 by oxidation.
     待测水样中的阳离子用EDTA络合掩蔽,S~(2-),I~-,S_2O_3~(2-)等阴离子以及有机还原性物质和表面活性物质,用KMnO_4氧化除去。
短句来源
     The recoveries in pulmonary surfactant and its lyophilized powder were 98.19%and 98.41%,respectively;
     在猪肺表面活性物质及其制剂中回收率分别为98.19%及98.41%;
短句来源
     Results The contents of pulmonary surfactant decreased with the development of ARDS. They were 67 6±7 2,44 0±7 3 and 31 3±6 5μg/ml lung lavage in control group,early group and late group respectively.
     结果 肺泡表面活性物质的含量在对照组、早期组、晚期组分别为6 7 6± 7 2、44 0± 7 3、31 3± 6 5 μg/ml肺灌洗液 ,呈递减改变。
短句来源
     Purification of porcine pulmonary surfactant by CO_2 supercritical fluid extraction
     超临界CO_2提纯猪肺表面活性物质的研究
短句来源
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  活性剂
     Investigation on Sugar Based Surfactant: Sucrose Esters
     糖基表面活性剂蔗糖酯的研究
短句来源
     Research on the Synthesis, Properties and Applications of a New Metal Complexing Surfactant
     新型金属络合性表面活性剂的合成、性质及应用研究
短句来源
     The Process Fundamentals of Surfactant Assisted Protein Refolding
     表面活性剂辅助蛋白质复性过程机理研究
短句来源
     The Study on Rheological Properties of Visco-Elastic Surfactant Diverting Acid and the Kinetics of Its Acid-Rock Reaction
     粘弹性表面活性剂转向酸体系的流变性能及酸岩反应动力学研究
短句来源
     Applications of High Resolution Liquid State NMR Spectroscopy in Surfactant Chemistry and Neurochemistry
     液体高分辨核磁共振波谱在表面活性剂化学和神经化学研究中的应用
短句来源
更多       
  肺表面活性物质
     The recoveries in pulmonary surfactant and its lyophilized powder were 98.19%and 98.41%,respectively;
     在猪肺表面活性物质及其制剂中回收率分别为98.19%及98.41%;
短句来源
     Purification of porcine pulmonary surfactant by CO_2 supercritical fluid extraction
     超临界CO_2提纯猪肺表面活性物质的研究
短句来源
     Effect of SP-B and SP-C on Function of Pulmonary Surfactant
     SP-B、SP-C对肺表面活性物质功能的影响
短句来源
     Effects of pulmonary surfactant on acute lung injury in rats
     肺表面活性物质对大鼠肺内源性急性肺损伤的作用
短句来源
     To investigate the effect of pulmonary surfactant(PS) on the expression rates of Th1, Th2, Tc1, Tc2 subsets of patients during an acute asthmatic attack.
     目的通过肺表面活性物质(PS)对哮喘发作期患者外周血T淋巴细胞的干预,观察Th1、Th2、Tc1及Tc2细胞的变化,探讨PS改善哮喘症状的机制。
短句来源
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  surfactant
The optimal constituents of microemulsion were found from pseudoternary phase diagrams: the mass ratio of Span80 to PS was 4:1 and complex surfactant to cosurfactant was 1:1.
      
Synthesis and surface-active property of bis-quaternary ammonium-sodium sulfate Gemini surfactant
      
N,N-dimethyldodecylamine, hydrochloride and epichlorohydrin (molar ration is 2:1:1) were used to synthesize bis-quaternary ammonium Gemini surfactant with a hydroxyl in its spacer group by the one-pot method.
      
This hydroxyl was sulfonated by chlorosulfonic acid and then neutralized to bis-quaternary ammonium-sodium sulfate zwitterionic Gemini surfactant.
      
The critical micelle concentration (cmc) and surface tension of the novel zwitterionic Gemini surfactant in aqueous solution at 15°C are 7.2×10-5 mol/L and 34.5 mN/m, respectively.
      
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Although the surface adsorption of ionic surfactants had been widely studied, the investigations were almost limited to solutions containing only a single surfactant. In the present investigation surface tension of the mixed solutions containing a cationic and an anionic surfactant namely, dodecylpyridinium bromide and sodium dodecylsulfate, has been measured by the drop-volume method, and the individual adsorption of each surface-active ion calculated by the following equations:

本工作研究澳化十二烷基呲啶(C_(12)NBr)和硫酸十二烷基钠(NaC_(12)S)两种正、负离子表面活性剂的混合溶液(加入溴化钠作成等离子强度溶液)的表面吸附。用滴体积法测定C_(12)NBr水溶液、等离子强度的、不同C_(12)Br-NaC_(12)S比例的水溶液及1:1当量C_(12)NBr-NaC_(12)S混合溶液的表面张力。利用等离子强度条件下的Gibbs吸附公式 -((dγ/dln m_N))_m_S=RTГ′_N及- -((dγ/dln m_N))_m_N=RTГ′_S,可分剧求出正、负表面活性离子的吸附量。结果表明: 1.负离子表面活性剂之存在大为增加正离子表面活性剂的表面活性;反之亦然。1:1当量C_(12)NBr-NaC_(12)S混合溶液的CMC约为2×10~(-5)m,比C_(12)NBr溶液的CMC约小650倍。 2.负离子表面活性剂之存在促进正表面活性离子的表面吸附;反之亦然。这恰好与负、负表面活性离子混合溶液及丁醇-负表面活性离子混合溶液之情形相反。 3.加无机盐(NaBr)对1:1当量C_(12)NBr-NaC_(12)S混合溶液的表面张力几无影响,亦即对吸附无显著影响。由...

本工作研究澳化十二烷基呲啶(C_(12)NBr)和硫酸十二烷基钠(NaC_(12)S)两种正、负离子表面活性剂的混合溶液(加入溴化钠作成等离子强度溶液)的表面吸附。用滴体积法测定C_(12)NBr水溶液、等离子强度的、不同C_(12)Br-NaC_(12)S比例的水溶液及1:1当量C_(12)NBr-NaC_(12)S混合溶液的表面张力。利用等离子强度条件下的Gibbs吸附公式 -((dγ/dln m_N))_m_S=RTГ′_N及- -((dγ/dln m_N))_m_N=RTГ′_S,可分剧求出正、负表面活性离子的吸附量。结果表明: 1.负离子表面活性剂之存在大为增加正离子表面活性剂的表面活性;反之亦然。1:1当量C_(12)NBr-NaC_(12)S混合溶液的CMC约为2×10~(-5)m,比C_(12)NBr溶液的CMC约小650倍。 2.负离子表面活性剂之存在促进正表面活性离子的表面吸附;反之亦然。这恰好与负、负表面活性离子混合溶液及丁醇-负表面活性离子混合溶液之情形相反。 3.加无机盐(NaBr)对1:1当量C_(12)NBr-NaC_(12)S混合溶液的表面张力几无影响,亦即对吸附无显著影响。由此提出,对于无盐时的1:1C_(12)NBr-NaC_(12)S混合溶液,Gibbs吸附公式应为 -dγ/RT=(Г′_N+Г′_S)dlnm_N(或s) 4.1:1 当量混合溶液表面吸附的最小分子面积为16(?)~2(加NaBr)及15(?)~2(未加 NaBr)。因此可能有多分子吸附层的形成。此外,自实验结果的解析提出1:1当量混合溶液的表面无双电层;而正、负表面活性剂的高表面活性及高吸附量的产生,是由于长链间的van der Waals引力及正、负离子的静电引力的作用。

This paper deals with a new method of preparing rosin chloride directly with chlorine, which is different from the traditional method as shown in relevant materials. The chlorinated rosin soap lye thus made can be used as surfactant and lubricant in place of chlorinated paraffinum, as it is characterized by its properties of better condensation and antifrication.

本文介绍用与文献不同的方法,直接用氯气制备氯化松香,原料易得,设备简单,没有污染。并首创将氯化松香皂用于表面活性剂与极压添加剂,比氯化石蜡有更好的抗磨性和冷却作用。

A simple photo-galvano-voltaic cell has been constructed by using a Nesa glass coated with SnO2 on both sides as transparent electrodes, one of which is further coated with a photosensitizing dyestuff, meso-tetraphenylporphrin (TPP), forming the photo-cathode, and using an aqueous solution of thionine and Fe+++/Fe++redox couple as the electrolytic solution. By adding a surfactant, Na Lauryl sulfate, into the solution the. surface resistance of the TPP film is greatly lowered, so that the photocurrent of...

A simple photo-galvano-voltaic cell has been constructed by using a Nesa glass coated with SnO2 on both sides as transparent electrodes, one of which is further coated with a photosensitizing dyestuff, meso-tetraphenylporphrin (TPP), forming the photo-cathode, and using an aqueous solution of thionine and Fe+++/Fe++redox couple as the electrolytic solution. By adding a surfactant, Na Lauryl sulfate, into the solution the. surface resistance of the TPP film is greatly lowered, so that the photocurrent of the cell, is markedly enhanced, and the light conversion efficiency is increased more than twofold. It has been demonstrated that a multilayer liquid film photo-galvano-voltaic cell with film thickness less than 100μ cangreatly increase the light conversion efficiency, and the open-circuit voltage of more than two volts can be easily achieved. Several properties especially the semiconducting characters of the TPP coating material have been shown by analyzing the action spectrum, the Ⅰ-Ⅴ characteristic curve, and the photores-ponse light intensity dependency of this photo-galvano-voltaic cell.

用四苯基卟吩在导电玻璃上的涂层为光电极,构成光生伏打-光原电池(PGV电池) 添加十二烷基硫酸钠能显著提高光电流,使光能转换效率倍增。构成多层液膜PGV电池,开路光电势易于超过2伏。本文讨论了上述电池的若干性质。

 
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