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醇溶胶

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Or so. What's more, the theory of the films shaping and conducting is discussed. There are some key reactions such as alcoholysis reaction in the processing of Sol preparation, dehydration reaction and condensation polymerization when films are coated and consolidation in the process of desiccation and sinter.

左右。分析了溶胶-凝胶法制备薄膜的形成机理和导电机理,对薄膜形成过程进行分析,归纳出形成过程的化学反应主要有:溶胶制备中的醇解反应、浸渍提拉镀膜中的水解和缩聚反应以及干燥和热处理成膜中的聚合、分解与键合反应。

The carbonaceous alcosol and the silica alcosol were prepared respectively by using aqua-mesophase and tetraethoxysilane as starting materials. Then the two alcosols were mixed and dried in open air and under supercritical fluid conditions to form binary carbonaceous-silica xerogel powders and aerogel powders respectively.

以正硅酸乙酯和炭质水性中间相为原料,分别制得了炭质醇溶胶和硅醇溶胶,将二者进行混合后再利用常压干燥法和超临界流体干燥法分别制备了二元炭质-二氧化硅干凝胶和气凝胶粉末。

The main object of this research is to investigate synthesis of Cu23Cl Cu and CuO nanoparticles through electrospinning and heat-treated method The research is mainly focused on preparative parameter and the change of heat-treated temperature to form the nanoparticles inlaid in silicon fibers the shape and color change are dicussed First of all to prepare the Polyvinyl butyral and silica dioxide complex nanofiber by electrospinning and then to investigate different heat-treated temperature and reactive time to being an influence on the products The results detected by SEM XRD TEM EDS FTIR combined sol-gel process and electrospinning can prepare Polyvinyl butyral and silica complex nanofiber The experimental result is found when heat-treated temperature is 100~4750C it can produce Cu23Cl nanoparticles; Above 4750C~ 4900C it can produce Cu nanoparticles; Above 450~7000C it can produce CuO nanoparticles And the viscosity is lain between 20~40cp and the sol-gel process time is 3hr it can produce the thinner fibers The average diameter of the fibers are 107 88±21 01nm;Due to the nanoparticles inlaid in the silica fibers the thinner fibers can be inlaid the smaller nanoparticles so this is the result that the experiment is expected To calcine the complex fibers is to produce surface silica fibers contain Cu23Cl Cu and CuO nanoparticles due to surface plasma resonance it make the color of the fibers become yellowish green from light white green turn into the red nuclear finally As the experimental result to utilize sol-gel process combine electrospinning can produce porous silica fibers contain Cu23Cl Cu and CuO nanoparticles

本研究旨在探讨「利用放电纺丝和热处理法来合成Cu23Cl、Cu和CuO奈米粒」之研究,实验著重在制备参数与热处理温度变化对所形成的奈米粒镶嵌在二氧化矽纤维中的形态与颜色变化探讨。首先,利用放电纺丝法制备出聚乙烯醇缩丁醛及二氧化矽之奈米纤维,比较不同的热处理温度与反应时间的改变对产物生成产生影响,进而研究不同热处理温度和时间对生成奈米粒的影响。产物经由SEM、XRD、TEM、EDS和FTIR等仪器分析结果显示,结合溶胶-凝胶法(sol-gel process)和放电纺丝法可产生聚乙烯醇缩丁醛及二氧化矽复合奈米纤维。实验结果发现,若热处理温度在100~4750C下可得到Cu23Cl奈米粒,475~4900C 可得Cu奈米粒,450~7000C以上可得 CuO奈米粒。而黏度介於20~40cp间和溶胶-凝胶时间为3hr时,可产生直径比较细的纤维,纤维直径为107 88±21 01nm;且由於奈米金属颗粒镶嵌在二氧化矽纤维中,直径比较细的纤维,可以得到比较小的奈米金属颗粒,这与实验预期相符。而锻烧此复合物产生多孔的二氧化矽纤维并包含Cu23Cl、Cu和CuO奈米微粒时,由於表面电浆子共震关系,而使纤维颜色由淡白黄绿色变成黄绿色,再变红褐色。由实验结果得知,利用溶胶-凝胶法(sol-gel process)结合放电纺丝法和不同热处理温度,可产生Cu23Cl、Cu和CuO奈米粒镶嵌在二氧化矽纤维。

MoO3 organosol was obtained by using CTAB to modify the nanoparticles in MoO3, hydrosol and n-pentanol to extract MoO3 nanoparticles modified by CTAB. The effect factors on organosol were discussed extensively.

采用表面活性剂CTAB对MoO_3水溶胶中的纳米粒子进行表面修饰,通过正戊醇萃取制备了MoO_3纳米有机溶胶,对制备有机溶胶的条件进行了系统地研究。

The porous TiO2 anatase nanometer thin films were prepared from alkoxide solutions containing polyethylene glycol PEG by sol-gel method.

锐钛矿型多孔TiO2纳米薄膜可以从含聚乙二醇PEG的钛醇盐溶胶前驱体中通过溶胶-凝胶法制备。

The porous TiO2 anatase nanometer thin films were prepared from alkoxide solutions containing polyethylene glycol by sol-gel method.

锐钛矿型多孔TiO2纳米薄膜可以从含聚乙二醇的钛醇盐溶胶前驱体中通过溶胶-凝胶法制备。

The technological process in preparation of the delafossite structure p-TCO thin films by sol-gel method is discussed systematically. The relative advantages and disadvantages of the systems of sol about organic alkoxide and inorganic salt are analyzed, and further development are discussed. It is pointed out that sol-gel method is an effective and feasible means to prepare p-TCO thin films.

本文介绍了铜铁矿结构p-TCO的结构特性以及溶胶凝胶法的基本原理和特点;系统地介绍了溶胶凝胶法制备铜铁矿结构p-TCO薄膜的工艺;分析比较了有机醇盐、无机盐溶胶体系的优缺点;最后讨论了进一步的发展方向,指出溶胶凝胶法是一种高效可行的制备p-TCO薄膜的方法。

In the presence of a catalyst, ethyl silicate was mixed with ethanol-water solution to form silica sol, which was impregnated into Alnus nepalensis and Tilia amurensis wood as soon as possible.

文章摘要:在催化剂存在下,使正硅酸乙酯与乙醇-水溶液混合制备硅醇溶胶,迅速将其分别注入到西南桤木和紫椴木材中,令其在室温下反应100min左右得到木材-凝胶,然后采用超临界干燥技术制备木材-SiO2气凝胶。

Aim to the application purpose of all-solid state electrochromic device and electronic link materials, which are prepared on flexible substrate. The tungstenic acid sols doped with PEO, MoO_3 and the PEO6000 nano-sized composite Ni_2 sols were prepared by ionic- changing and alcohol salt hydrolyzing technology of sol-gel method.

本论文以全固态的电致变色显示器件和柔性基板电子墨水显示材料为应用目标,采用溶胶-凝胶技术中的离子交换法和醇盐水解法分别制备了PEO、MoO_3掺杂的钨酸溶胶和PEO掺杂Ni_2的复合溶胶体系。

In this paper, silica sol in ethanol was prepared and used for fixing Direct Black G dyed cotton, and good washing fastness was obtained.

本论文制备含硅醇溶胶并对直接黑G进行固色处理,取得了较高的固色效果。

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