胶凝

Poly silica hybrids were prepared through polymerization, condensation and sol gel processes of the mixture of methyl methacrylate, poly and a small amount of coupling agent methacryloxylpropyl trimethoxy siliane in tetrahydrofuran.

采用溶胶-凝胶技术，以硅酸钠为原料制备聚硅酸/四氢呋喃溶胶，再与甲基丙烯酸甲酯及少许偶联剂甲基丙烯酰氧丙基三甲氧基硅烷(MPTMS 混合，经聚合、缩合和溶胶-凝胶过程制备了有机/无机两相间有— C—Si—O—键的杂化材料——聚甲基丙烯酸甲酯/二氧化硅(PMMA/Si O2 )。

The microstructure and morphology are examined by SEM, XRD, EPMA, and the electrochemical performance is studied by potentiodynamic polarization and current efficiency. The results show that the alloy elements in the electrode coating prepared by the sol-gel process are well distributed, more sufficient to form solid solution and with higher current efficiency than by the traditional thermal decomposition process. The deactivation effect is due to the forming of unconductive TiO2 for the sol-gel process, but due to the dissolution of active composition for the thermal decomposition process.

SEM、XRD、电子探针、极化曲线、电流效率实验表明，由溶胶-凝胶法制备的氧化物涂层比热分解法制备的氧化物涂层的分散性好、形成固溶体充分、电流效率高；由溶胶-凝胶法制备的氧化物涂层的失效是由于生成不导电的TiO2引起，而由热分解法制备的氧化物涂层的失效是由于活性氧化物涂层的溶解引起。

The stable time of the polymerized gels is more than one year. However, the stable time of the unpolymerized molecular gels is only from several days to several weeks.

由电 镜和偏光显微镜研究的凝胶形态学表明，凝胶中存在由相互缠结的三维纤维网络构成的球晶。

Prepared by Sol-Gel method, the xerogel fired at 1100℃ for 2h was well crystallized.

采用溶胶－凝胶法制备的干凝胶在1100℃下焙烧2h后可以得到具有良好晶型的产物。

Amounts of hydroxyl groups and specific surface areas of silica xerogel are higher, therefore it has more adsorption activated positions.

第四，通过锆在水溶液中的存在特性和SiO〓干凝胶表面特性的分析，研究了SiO〓干凝胶对锆的吸附机理。

The results of influence of pH and temperature and particle size of silica xerogel for adsorption show that isotherm adsorption accords with Langmuir equation.

考察了溶液pH值、温度和SiO〓纳米干凝胶的粒度对吸附的影响，结果发现SiO〓纳米干凝胶对锆的等温吸附符合Langmuir方程。

The porosity of the aerogel films is 56%, 16% higher than that of the xerogel films when dried at 120℃.

研究结果表明，常压干燥制备的薄膜孔隙率达到了56%，比干凝胶薄膜提高了16%，而且比容量达到530mAh/g左右，比干凝胶薄膜提高了33%，可逆性也得到了改善。

Recuperation ratio of silica xerogel is high, chemical stability of silica xerogel in acidic solution is very strorg.

研究了SiO〓纳米干凝胶的再生率和在酸溶液中的稳定性，结果表明SiO〓纳米干凝胶的再生率较高，在酸中的稳定性强。

The morphology, structure and composition of binary xerogel powders and aerogel powders were characterized by FT-IR, TEM, XRD and nitrogen adsorption.

并采用氮吸附、FT-IR、TEM 和XRD等测试手段对所制得的干凝胶和气凝胶粉末的BET表面积、表面形貌、结构和组成进行了表征。

Monodispersed and high density nanocrystalline GaN particles were in-situ synthesized in silica xerogel by a sol-gel method.

采用溶胶凝胶方法制备了高密度、单分散的氮化镓量子点/二氧化硅干凝胶复合材料。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！