溶胶

Porous titania thin films were obtained via sol-gel method with hydroxypropyl-cellulose as the additive,ethylene glycol monomethyl ether as solvent.

以乙二醇甲醚为溶剂，羟基纤维素为添加剂，用溶胶-凝胶法制备了多孔TiO2薄膜。

is that zinc acetate, sodium acetate and transition metal salt are dissolved in ethylene glycol monomethyl ether as precursor; then ethanol is added as stabilizer; after stirring, the stable sol is formed.

将醋酸锌、醋酸钠和过渡金属盐作为前驱物，溶于乙二醇甲醚中，并加入乙醇胺作为稳定剂，搅拌后形成稳定的溶胶。

The compound of bioglass and bone morphogenic protein possesses much high inductive potentialties and the ability of rebuiding bone defect and can serve as an autograaft substitute material and had an great foreground in clinical trials.

溶胶凝胶生物活性玻璃复合骨形成蛋白人工骨具有高效的诱导成骨能力和良好的生物降解性，可成功的修复大段的骨缺损，是一种骨缺损修复的良好的生物材料，有着广阔的临床应用前景。

ABSTRACT PZT thin films with a composition near the morphotropic phase boundary ﹝ w/w=52/48﹞ were prepared by the sol-gel process, and atomic force microscopy and spectroscopic ellipsometry were utilized to trace the sintering processes.

摘 要 用溶胶-凝胶技术制备了组成在准同型相界点﹝m/m=52/48﹞附近的钙钛矿相PZT薄膜，并运用原子力显微分析与椭偏法测试相结合的方法跟踪了薄膜的烧结过程。

The anatase crystals of the TiO2 films connected together to form netlike structure after calcined, and th

在自制的光催化反应装置中以10mg/L甲基橙为降解对象，考察了TiO2薄膜的光催化性能，在4h内直接干燥的TiO2薄膜脱色率达到95%，经热处理后薄膜的光催化性能有一定提高，这说明采用AS溶胶前驱体制备的TiO2薄膜光催化性能良好。

Five synthesis methods of AlN powder were discussed, namely direct nitrogenation of Al powder, carbothermal reduction of Al2O3, chemical vapor deposition, sol-gel method, self-propagating high-temperature synthesis and plasma chemical synthesis. The choice of AlN sintering additives and five sintering technologies were analysed, namely hot pressing sintering, pressureless sintering, spark plasma sintering, microwave sintering and self-propagating sintering. The preparation processes of AlN substrate and its influencing factors were expounded.

介绍AlN陶瓷的典型性能和导热机理；讨论AlN粉末的5种合成方法：铝粉直接氮化法、Al2O3碳热还原法、化学气相沉积法、溶胶凝胶法、自蔓延高温合成法和等离子化学合成法；分析AlN烧结助剂的选择和5种烧结工艺：热压烧结、无压烧结、放电等离子烧结、微波烧结及自蔓延烧结；阐述AlN基板的制备工艺及其影响因素。

The magnetite with a mean diameter of 8nm was prepared by chemical coprecipitation methods. By the addition of nonionized oleic acid to the suspension of magnetite in solution during precipitation, the magnetite nanoparticles were coated with a double surfactant layer. A gel-like precipitated precursor is then formed because of the hydrophobic interaction among those coated units. By transferring of this precursor to an organic solvent, the surfactant double layer on Fe〓O〓 nanoparticles reduces to one; however, it still remains as a double layer by transferring to an alkaline aqueous solution. Both these cases give in stable colloids of superparamagnetic Fe〓O〓 nanoparticles.

从解决无机磁性Fe〓O〓颗粒与有机烯类单体的相容性入手，采用化学共沉淀法，制备了平均直径为8nm的超顺磁性Fe〓O〓颗粒，在制备过程中以非离子形式引入油酸，在Fe〓O〓颗粒表面形成一个具有双层结构的疏水外壳，并通过疏水相互作用凝聚成磁性Fe〓O〓凝胶，能够以单分子层结构形式溶解在非极性溶剂中，也能够以双分子层结构形式溶解在碱性水溶液中，形成稳定的超顺磁性Fe〓O〓溶胶。

Scanning electron microscopy,transmission electron microscopy,circular dichroism and small-angle X-ray diffraction were used to analyze the aggregation mode of CSG in the organogel phase.A hierarchical self-assembly model was proposed to explain the transition from molecular to primary and secondary structure.It is shown from our results that CSG can aggregate into a micellar fibril nanostructure with high length-to-width ratio which is bundled and entangled to form a three-dimensional(3D) network that immobilize the fluid component probably by surface tension.Moreover,sol-gel polymerization of tetraethoxysilane was carried out using CSG in the gel phase.

通过扫描电镜(ScanningElectron Microscopy，SEM)、透射电镜(Transmission Electron Microscopy，TEM)、圆二色谱(Circular Dichroism，CD)和小角X—射线衍射仪(Small-angle X-rayDiffraction，SAXRD)考察CSG分子自组装行为结果表明，CSG形成的聚集体具有多级结构：首先CSG通过手性堆叠自组装形成直径在9—10nm的细纳米纤维，这些细的纳米纤维再以不规则的六方堆积的方式进行排列，构成直径在40—100nm的粗纳米纤维(即细纳米纤维的&捆束&)，最后粗纳米纤维互相粘连形成三维网络状结构，使有机溶剂&固定&，从而形成凝胶；以CSG有机凝胶为模板，四乙氧基硅烷为前体，通过溶胶—凝胶聚合的方法制备了直径大约为100nm的二氧化硅纳米管。3。

In this project the seed cells, scaffolds and bioactive factors are combined with gelatin and silane through the sol-gel, freeze-drying methods. The porous materials having proper physicochemical properties and good biocompatibility have been produced and utilized as the scaffolds for bone tissue engineering and organoid artificial skin.

该项目应用明胶和硅烷，通过溶胶-凝胶、冷冻干燥等方法，将种子细胞、支架材料、以及生物活性因子等结合起来，获得了具有适当理化性质、良好生物相容性的多孔材料，并将其作为组织工程骨和组织化人工皮肤的支架材料。

Silica sol without ethanol was prepared with tetraethyl orthosilicate as precursor.

以硅酸乙酯为水解前驱体，制备了有机硅水溶胶体系。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。