胶体颗粒

SiO2胶体颗粒的三维有序自组装

Three-Dimensionally Ordered Self-Assembly of SiO_2 Colloidal Particles

讨论了延滞对胶体颗粒间的vanderwaals作用的影响。

The effect of retardation on van der Waals interaction of colloidal particles has been discussed .

利用X射线衍射、透射电镜等分析测试手段对纳米银胶体颗粒进行了表征。

Silver nanoparticles colloids are characterized by means of X-ray Diffraction ( XRD ) and Transmission Electron Microscope ( TEM ) .

并对单分散的SiO2硅胶体颗粒的成核及生长机理进行了研究。

The nucleation mechanisms of monodisperse silica colloidal particles were also studied .

通过扫描电镜进一步证明，高梯度磁场对水中的胶体颗粒可以起到絮凝的作用，并保持了pH值的稳定，较大幅度地去除了浊度和COD，并且改善了水质。

The high-gradient magnetic field makes colloid particles flocculent in the cooling water , as proved by SEM observation .

大尺寸SiO2胶体颗粒的重力沉降自组装研究

Self-assembly under gravity sedimentation of large size silica particles

尽管SI方解石、SI白云石大于零，但在地下水中它们也可以小型胶体颗粒形式存在。

Although saturation indices for calcite and dolomite are greater than 0 , they would possibly exist as small size colloids in groundwater .

采用sol-gel法制备纳晶TiO2薄膜，在溶胶的制备过程中加入丙烯酸对纳米TiO2胶体颗粒进行表面修饰。

TiO2 thin film photocatalyst was prepared by the sol-gel method with acrylic acid acted as the surface modifier .

磁化处理对活性污泥胶体颗粒表面的zeta电位的影响

Magnetic treatment for lowering zeta potential of biological sludge

对样品质量分形来说，随着添加物量的增多，掺杂SiO2干凝胶分形特性范围逐渐减小，构成干凝胶的胶体颗粒尺度逐渐增加；

Mass fractal range of silica xerogels decreases and colloid particle increases with the increase of additives .

PAM阳离子度为50%时，脱色率可达到90%以上，过多的阳离子会导致胶体颗粒重新稳定。

When the concentration of cation is 50 % , the decoloration rate is over 90 % .

以聚乙烯醇（PVA）、六偏磷酸钠为分散剂，采用溶胶法合成了CdS纳米胶体颗粒，制备出CdS及其包裹型纳米颗粒PVA基复合膜。

CdS colloid nanoparticles were synthesized by sol method with polyvinyl alcohol ( PVA ) and sodium hexametaphosphate as dispersants .

本研究以溶胶&凝胶法制备的SiO2胶体颗粒为核心，以TiO2为壳制备了具有高比表面积的SiO2/TiO2复合颗粒。

In this work , SiO2 core and TiO2 shell composite particles with high surface areas were synthesized by sol-gel technique .

研究了带有正电荷的TiO2胶体颗粒在带有负电荷的聚电解质多层膜表面的组装，通过改变膜表面性质来控制胶体颗粒，从而实现可控密度的短程RSA有序分布。

We studied the assembly of TiO_2 colloid with positive charges on the polyelectrolyte self-assembly multilayers with negative charges .

在不同化学条件下，对均匀胶体颗粒（包括聚苯乙烯Latex颗粒和α-Fe2O3颗粒）进行电泳测定来验证该模型。

Electrophoresis measurements of uniform colloid particles including latex and haematite particles have been made in various chemical conditions to test the developed model .

报道了一种利用直径为286nm的单分散SiO2胶体颗粒制备胶体晶体的方法。

A method for preparation of particle crystal films constructed from monodisperse SiO_2 colloidal particles in diameter of 286 nm is reported .

CBF可以中和胶体颗粒表面的部分电荷，使胶粒脱稳沉淀。

CBF can neutralize some electric charge of colloidal particles and make colloidal particles to sedimentate .

结论：肝脾内SPIO胶体颗粒的分布规律是其MRI增强的组织学基础；

Conclusion : The distribution of SPIO in the liver and spleen was the histologic bases of SPIO MRI contrast ;

方法以牛血清白蛋白（BSA）为模型药物，以壳聚糖为载体材料，应用离子交联法制备BSA胶体颗粒，并与胶原/羟基磷灰石骨组织工程支架材料复合。

Methods Chitosan colloid particle carrying model drug BSA was prepared by the method of ionic gelatin , and incorporated into collagen / hydroxyapatite scaffold .

对白酒经风干后的胶粘态进行DFM分析后发现有大小不一的类圆形胶体颗粒。

The similar-circular colloid particles of different size were found by DFM analysis of the stickiness state of atmospheric drying liquor .

当发射出的光与基体材料的光子带隙相匹配时，可控制半导体材料的光致发光，同时，可通过控制SiO2胶体颗粒粒经的大小来调节CdS的光致发光性能。

When the emitted light matches the photonic band gap in the matrix , the inhibition of CdS is achieved and the PL properties in CdS can be modulated by SiO_2 colloidal sphere diameter .

发现了一种简单的对表面改性后的SiO2胶体颗粒自组装的方法，表面化学改性的Si02胶体颗粒在乙醇溶液中进行了三维opal光子晶体的自组装。

A simple method of self-assembling silica colloid particles was found . The surface modified silica colloid particles could be self-assembled to form three-dimensional opal photonic crystal in ethanol .

研究表明：当GMA用量为15%（质量分数），中和度为80%时，体系中胶体颗粒具有足够的亲水性和良好的稳定性。

It has shown that when GMA amount is 15 % ( m / m ), neutralization degree 80 % , the colloid in system shows enough hydrophilic property and good stability .

研究结果表明：（1）CMP分子为网状结构的大分子多糖，可以更有效的吸附胶体颗粒形成架桥作用，其水溶性和絮凝效果均优于Pullulan分子。

The results of this thesis are as follows : ( 1 ) CMP has a net structure and higher molecular weight which is more favorable to coagulate colloidal particles and promote the bridging performance .

本文考察了聚丙烯蜂房式管状滤芯（SS-P01P25）对自来水中悬浮胶体颗粒物的去除能力。

Studies the removing ability of honeycomb type polypropylene filter ( SS-P01P25 ) for colloid in water .

用微波法制备高分子聚合物稳定的纳米金胶体颗粒，制得的金纳米颗粒的平均粒径在5～120nm之间。

Polymer-stabilized Au colloidal nanoparticles were prepared by microwave irradiation . Size of the Au particles varied from 5 nm to 120 nm along with different reactive conditions .

乙酰乙酸乙酯（EAcAc）能够与Al2O3胶体颗粒表面的-Al-OH基团发生螯合作用从而降低Al2O3胶体颗粒的反应活性，并显著缩小固液相之间的界面差异，使体系的Gibbs焓变下降。

It was indicted that ethylacetoacetate ( EAcAc ) can chelated with - Al-OH groups on the surface of the colloidal particles , depressing the activity of the colloidal particles , reducing the interphase distinction between the solid and liquid phase remarkably , lowering the change of Gibbs enthalpy .

这使得海水中的悬浮物、胶体颗粒等杂质的含量进一步降低，一般可使得产水浊度降低至0.2NTU以下，SDI值小于3。

This makes the material and water content of impurities such as colloid particles , which can further reduce turbidity water below 0.2 NTU , reduced to less than 3 SDI value .

本课题以水中腐殖酸有机物和高岭土胶体颗粒为去除对象，采用静态显微图像法和环流气浮反应器（ES-DAF）研究了聚合氯化铝混凝絮体的分形结构和气浮去除特性。

Image analysis and a novel ES dissolved air flotation reactor ( ES-DAF ) are used in the study on fractal structure of alum floe and removal characteristics by flotation .

动态光散射的研究表明，催化剂溶于底物之后生成了一个胶体颗粒直径在600nm左右的体系，随着温度升高和反应的进行胶体粒径逐渐增大并最终形成乳液。

Dynamic light scattering studies showed that after the catalyst was added into the system , a colloidal system formed . The mean size of the colloidal particles is ca.600 nm . At the reaction conditions the particles gradually grew bigger and finally form emulsion .