1) silica aerogel
硅石气凝胶
1.
In this Paper, we measured the gas thermal conductivity of pure and TiO2 doped silica aerogels at low pressure (<105Pa) by using the transient hot wire method, and researched the affection of the dopant on the gas thermalconductivity of silica aerogels.
以动态热线法测量不同气压下纯硅石气凝胶和TiO2掺杂硅石气凝胶的气态热导率,研究TiO2掺杂对硅石气凝胶气态热传导的影响。
2.
A new method of silica aerogel aging under the condition of high temperature,high pressure and alkaline solution of ethyl orthosilicate is studied.
本研究用一种在较高温度和较高压力下正硅酸乙酯的碱性溶液中老化湿硅凝胶的方法,得到的硅石气凝胶无裂纹,比表面积高达983 m2/g,孔体积为6。
2) silica aerogels
硅气凝胶
1.
Presently,silica aerogels are the lightest solid material which have the best property in thermal insulation and have the higher porosity,the lower sound velocities in the world.
目前硅气凝胶是世界上最轻、隔热性最好、孔隙率较高且声传播速率较低的固体材料,由于其特殊的网络结构使其具有很多独特的性能。
2.
The structure and properties of the doped silica aerogels and the pure silica aerogels prepared with the same method were studied by SEM and BET.
以稻壳为硅源制备SiO2气凝胶,在溶胶凝胶过程中加入TiO2纳米粉末,可制得掺杂TiO2硅气凝胶。
3) silica aerogel
硅气凝胶
1.
The thermal conductivity of silica aerogels doped with TiO 2 powder and ceramic fibers was investigated by varying the gas pressure and the temperature.
利用正硅酸甲脂(TMOS)为原料的溶胶-凝胶过程,摸索了不同反应条件下形成凝胶的规律,并选用TiO2粉末及玻璃纤维作为掺杂剂,采用超临界干燥处理制备出掺TiO2的硅气凝胶,通过对红外光谱以及不同温度和气压条件下热导率的测量,讨论了不同成份配比以及相应的热传输过程对材料热导率的影响。
2.
Hydrophobic silica aerogels were prepared from cheap waterglass precursors via surface modification of wet gels and ambient pressure drying route.
以工业水玻璃为硅源,采用三甲基氯硅烷[(CH3)3SiCl,TMCS]/乙醇[CH3CH2OH,EtOH]/正己烷[C6H14]混合液对硅水凝胶进行溶剂交换和表面改性,在常压干燥条件下获得疏水硅气凝胶材料,并对其吸附狄氏剂性能进行了系统评价。
4) silica acrogel
气凝硅胶
5) Silica based aerogel
硅质气凝胶
6) ZrO2-SiO2 composite aerogels
硅锆复合气凝胶
补充资料:白硅石
CAS: 14464-46-1
分子式: SiO2
分子量: 60.08
中文名称:二氧化硅;方英石;白硅石;砂;方石英;白炭黑;微细硅酸
英文名称: Cristobalite;silica, crystalline-cristobalite;alpha-crystobalite;calcined diatomaceous earth;calcined diatomite;Silica,precipitated;white carbon
分子式: SiO2
分子量: 60.08
中文名称:二氧化硅;方英石;白硅石;砂;方石英;白炭黑;微细硅酸
英文名称: Cristobalite;silica, crystalline-cristobalite;alpha-crystobalite;calcined diatomaceous earth;calcined diatomite;Silica,precipitated;white carbon
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