The composite silica microsphere was obtained through the polymerization of urea and formaldehyde occurred in the silica sol that prepared from the hydrolyzation of tetraethyl orthosilicate.

SYNTHESIS OF TS 1 ZEOLITE ⅰ. 29 Si and 1H High Resolution NMR Investigation on the Hydrolysis of Tetraethyl Orthosilicate

TS-1分子筛的合成Ⅰ.~（29）Si和~1H NMR研究正硅酸乙酯的水解

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It is concluded that SO_ 2 pollution has a potential damaging effect on genetic material DNA in lung cells of mammalian animals. Conclusions: Tetraethyl lead pollution even at lower concentrations also has a potential risk to the genetic material DNA of brain cells from mice.

这些结果表明，较低浓度的SO2也具有引起哺乳动物肺细胞DNA突变的潜在危险.结论：四乙基铅能引起小鼠脑细胞DNA突变，呈剂量效应关系。

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Tetraethyl ammonium hydroxide ( organic template), silica gel ( silica source) and sodium meta-aluminate ( aluminum source) were used to p-zeolite synthesis and template removal in microwave radiation.

以粗孔硅胶为硅源，偏铝酸钠为铝源，四乙基氢氧化铵为模板剂，在微波辐射条件下，合成β沸石并脱除模板剂。

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Compared with standard methods, choose innoxious Tetraethyl ammonium chloride titrant the above one needs no distillation absorption and indicator. It has the advantages of being easy and quick in operation, and the determination result is accurate and reliable.

本方法终点变化敏锐，不外加指示剂，与通用的标准分析方法相比较，操作简便、快速，测定结果准确可靠，所用分析试剂无毒。

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The Epoxy/ TEOS, Epoxy/ GPTMS and Epoxy/ GPTMS-TEOS hybrid materials were prepared by the two-step method based on the precursors of tetraethoxysilane ( TEOS), ( 3-glycidoxypropyl) trimethoxysilane ( GPTMS).

本文采用二步法，以正硅酸乙酯TEOS、γ-缩水甘油醚基丙基三甲氧基硅烷GPTMS以及GPTMS-TEOS为无机组分前驱体，制备了Epoxv/TEOS、Epoxy/GPTMS、Zpoxy/GPTMS-TEOS杂化材料。

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The amorphous sphere silica nanoparticles were produced by hydrolysis of tetraethoxysilane ( TEOS) under alkalic condition in reverse microemulsion formed by the system of Triton X-100/ hexanol/ cyclehexane/ amomia water.

采用Triton X-100/正己醇/环己烷/氨水体系配制反相微乳液，在碱性条件下正硅酸乙酯在反相微乳液中发生受控水解，合成了具有无定形结构的球形二氧化硅纳米粒子。

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Methyl-situ-modified silica sols were obtained by hydrolysis and co-condensation reactions occurred in base-catalyzed system by carefully controlling the sol-gel process of Methyltriethoxysilane ( MTES) and Tetraethoxysilane ( TEOS).

在碱性条件下通过TEOS和MTES的共水解缩聚反应制备了单甲基原位改性的SiO2溶胶，并使用提拉法在K9玻璃基片上镀制了疏水减反膜。

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After modifying, Carbon Black ( CB) dispersed in organosilicon matrix and then hydrophobic coating can be obtained when a certain amount of tetraethoxysilane ( TEOS), Dispersing agent and water are added with enough stiring.

炭黑经过改性处理后分散在有机硅中，再添加适当的正硅酸乙酯、分散剂和水，充分搅拌反应后即可得到憎水性涂料。

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Poly ( vinyl alcohol)( PVA) was mixed with poly ( ethylene glycol)( PEG) and then cross-linked by tetraethoxysilane ( TEOS) to prepare organic-inorganic hybrid membranes.

以聚乙烯醇（PVA）与聚乙二醇（PEG）共混，并与正硅酸乙酯（TEOS）进行交联反应制备杂化膜。

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A series of poly ( vinyl alcohol)/ silica ( PVA/ SiO 2) transparent hybrid films with different silica content were obtained through the sol gel process using tetraethoxysilane ( TEOS).

以聚乙烯醇（PVA）和正硅酸乙酯（TEOS）为原料，通过溶胶-凝胶（Sol-Gel）方法，制备出不同二氧化硅含量的聚乙烯醇/二氧化硅（PVA/SiO2）共混均质膜。

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In this thesis, nanoscale mesoporous SBA-15 molecular sieve was prepared in acidic medium by using triblock copolymers ( EG20PG40EG20) as template, tetraethoxysilane as silica resource.

本文以三嵌段共聚物（EG20PG40EG20）为模板，以正硅酸乙酯为硅源，在酸性介质中制备出纳米SBA-15分子筛。

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Nano porous TiO 2 doped SiO 2 aerogel insulation were prepared via sol gel process using tetraethoxysilane ( TEOS) as the precursor and followed by ethanol supercritical drying.

以正硅酸四乙酯为硅源，钛白粉为红外遮光剂，通过溶胶－凝胶及超临界干燥过程制备了钛白粉掺杂SiO2气凝胶。

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A series of transparent polyimide/ silica ( PI/ SiO2) hybrid films were fabricated via sol-gel process using hydrolyzed tetraethoxysilane ( TEOS) under base condition.

采用碱催化正硅酸乙酯的溶胶/凝胶工艺制备了一系列透明聚酰亚胺/二氧化硅（PI/SiO2）纳米杂化薄膜。

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In this thesis, nanometer MCM-41 molecular sieve was synthesized in alkaline medium by hydrothermal method using cetyltrimethylammonium bromide as template, tetraethoxysilane as silicon resource.

本文借助水热法，以正硅酸乙酯为硅源，十六烷基三甲基溴化铵为模板剂，在碱性条件下制备了纳米MCM-41分子筛。

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In the sol_gel process of TEOS ( tetraethoxysilane), the effects of catalysts on hydrolysis reaction, condensation reaction and gelling properties were discussed.

探讨了正硅酸乙酯的溶胶－凝胶过程中，氢氟酸，盐酸，氨水，硫酸和醋酸等催化剂对水解、聚合和胶凝时间的影响。

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The interaction between polymer after hydrolysis of tetraethoxysilane and surfactant was used to form molecules self-assembly in the solution by rapid solvent evaporation during dip coating.

利用表面活性剂与硅源水解后形成的聚集体相互作用，在溶液中形成分子自组装体，通过简单提拉迅速蒸发溶剂等方法制备二氧化硅-表面活性剂纳米介孔薄膜。

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A sol containing SiO_2 particles was prepared by the base catalyzed hydrolysis and polycondensation of tetraethoxysilane ( TEOS) through sol-gel process.

通过溶胶凝胶法，在碱性条件下水解缩聚正硅酸乙酯获得含有SiO2颗粒的溶胶；

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Polyimide/ silica nano-hybrid films of different solid content were prepared via the sol-gel route using tetraethoxysilane ( TEOS) as inorganic precursor.

利用正硅酸乙酯（TEOS）做为无机前驱体，采用溶胶-凝胶（Sol Gel）法，制备了SiO2含量一定，固体含量不同的聚酰亚胺/二氧化硅（PI/SiO2）纳米杂化薄膜。

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Zircon powder has been synthesized by non-hydrolytic sol-gel route using zirconium tetrachloride and tetraethoxysilane as precursors.

本文以工业纯无水四氯化锆、正硅酸乙酯为前驱体，通过非水解溶胶-凝胶法在700℃低温合成出硅酸锆粉体。

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Al2O3-SiO2 composite membrane was prepared by sol-gel process using aluminium isopropoxide and tetraethoxysilane as raw materials.

以异丙醇铝和正硅酸乙酯为主要原料，用溶胶-凝胶法制备无支撑体Al2O3-SiO2复合膜。

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