共搜索到400条信息，每页显示10条信息，共40页。用时：0小时0分0秒703毫秒
: surfactant; antibacterial glaze; adsorption isotheral; dispersion stability; zeta potential 1 Introduction The adsorption of soluble surfactants to the solid/aqueous solution interface is a major... are not controlled. In previous studies, the effect of pH, ionic strength, and surfactant concentration on the adsorption of surfactants has only been studied on the single mineral ceramic glaze......
, and environmental friendliness. It is well known that the particle size and distribution, phase homogeneity, and morphology could be well controlled by surfactant. Nonionic and cationic surfactants were used to obtain the gallium oxide and it is noted that the above surfactants have limited effect on the morphology of resulted GaOOH crystals[15]. In many published literatures, sodium dodecylbenzene......
surfactants 图2 表面活性剂的分子结构式 Fig. 2 Molecular structures of surfactants 图3 掺不同量硬脂酸钙的水泥试块上下表面的接触角 Fig. 3 Contact angle of upper and lower surface of cement test block surface with different amounts of calcium stearate 2.2 不同表面活性剂对三相泡沫稳定性的影响 根据粉煤灰的化学发泡效果评价不同表面活性剂对泡沫的稳定作用.3种表面活性剂对粉煤灰的稳泡效果见表2. 表2 不同表面活性剂对粉煤灰三相泡沫稳定性的影响 Table 2 Effects of different surfactants......
. Plan B: increasing initial concentrations of sucrose from 5 to 25 g/L. (2) Adding surfactant Two types of surfactants were selected to add to the bioleaching system in accordance with the classification of surfactants: Tween-20 and sodium dodecyl sulfate (SDS). The concentration of the surfactants were 0.05, 0.1 and 0.2 g/L. (3) Roasting Stone coal samples were placed in a porcelain dish to roast......
of cobalt nanoparticles with different surfactants 图8所示为在最佳超声时间下,5种分散剂PVP,TEA,STAN-80,CTAB和SHMP的质量分数对纳米钴粉分散性能的影响.从图8可见:随着分散剂质量分数的增加,纳米钴粉在无水乙醇中的分散效果都呈现先增加后减小的趋势. PVP,TEA,STAN-80和CTAB这4种分散剂都具有较长的碳氢链结构,分散效果源于其在粉...,分散效果反而下降[16]. 图8 不同分散剂浓度对纳米钴粉分散性能的影响 Fig.8 Effect of different surfactants concentration on dispersion property of cobalt nanoparticles SHMP是具有环状结构的无机盐,它是通过提高颗粒表面电位绝对值从而产生强双电层静电排斥力使颗粒分散......
restricts its biomedical applications [7]. There are many factors such as dispersibility, impurities, length and surfactants contribute to the cytotoxicity of CNTs [8,9]. The carbon nanotubes (CNTs... widely used because they could well reduce impurities of catalysts, shorten the nanotubes and make some surfactants easier to conjugates with them. But ZHU et al [11] found that CNTs-COOH were more......
, MOFFAT T P. Cationic surfactants for the control of overfill bumps in Cu superfilling[J]. Journal of the Electrochemical Society, 2006, 153(12): C826-C833. [3] HATCH J J, WILLEY M J, GEWIRTH... of polyoxyethylene type surfactants on the surface of electrode[J]. Materials Protection, 1965(1): 11-18. [18] 章葆澄. 微分电容法在电镀技术中的应用[J]. 包装工程, 1982(4): 47-49. ZHANG Bao-cheng. Application of differential......
(TAA) as the surfactants was investigated by OZKAN et al[1-2]. The effective variables involved suspension pH, surfactant concentration, stirring speed and time. Meanwhile, the effects of sodium...,m. The surface hydrophobicity of particles is induced by the adsorption of surfactants on the particle surface. If the density of the adsorption layer of surfactants on the surface of induced......
and ammonia as the raw materials[13]. Some surfactants have been adopted to obtain the 1D ZnO with high aspect ratio involving polyvinyl alcohol, polyethylene glycol, cetyltrimethyl ammonium bromide (CTAB...]. Materials Letters, 2006, 60: 1394-1398. [12] JIMIN D, ZHIMIN L, HUANG Y, GAO Y, HAN B X, LI W, YANG G Y. Control of ZnO morphologies via surfactants assisted route in the subcritical water [J]. Journal......
[2] that additions of surfactants, such as sodium polyacrylate and polyethylene glycol, can inhibit the secondary reaction of dicalcium silicate with sodium aluminate solution, which increases... onto acid-activated bentonite from Xinjiang in xylene solution [J]. Journal of Hazardous Materials, 2009, 171: 582-587. [12] SOMASUNDARAN P, KRISHNAKUMAR S. Adsorption of surfactants and polymers......
