1) non-supercritical drying
非超临界干燥
1.
Taking tetraethyl orthosilicate(TEOS) as the resouces of silica and adopting a series effective measures,such as ageing,surface modifying,solvent replacement and fractional drying to avoid the crack of the aerogels in drying process,the big and non-cracked silica aerogels are prepared by non-supercritical drying.
以正硅酸四乙酯为硅源,通过采取老化、表面修饰、溶剂置换和分级干燥等一系列抑制二氧化硅气凝胶干燥中出现缩裂的有效措施,以非超临界干燥技术最终获得了大块无裂纹的二氧化硅气凝胶。
2.
Silica aerogels were prepared through the gelation process of silica sol systems in which drying control chemical additives(DCCAs) were added, followed by non-supercritical drying.
以硅溶胶为主要原料,通过硅溶胶体系的凝胶过程中添加干燥控制化学添加剂(DCCA),并结合非超临界干燥技术制备了硅气凝胶,研究了DCCA对凝胶过程和最终所得气凝胶品质的影响。
2) Non supercritical drying
非超临界干燥
1.
This paper presented non supercritical drying technique instead of supercritical one.
本文提出以非超临界干燥技术来替代超临界干燥过程的方法 ,阐述实现非超临界干燥制备气凝胶的几种措施 ,并介绍实施非超临界干燥技术制备 Si O2 气凝胶所得到的结
3) Supercritical drying
超临界干燥
1.
Novel technology of supercritical drying for nano-porous materials;
纳米多孔材料的超临界干燥新技术
2.
Use of anhydrous ethanol as solvent to prepare nano A1_2O_3 by a supercritical drying method;
乙醇为溶剂超临界干燥法制备纳米Al_2O_3
3.
Using incipient impregnation,sol-gel method and conventional drying,and sol-gel and supercritical drying techniques,three kinds of 20% Ni/Al2O3 catalysts have been prepared,the catalyst samples were characterized by means of BET,XRD,H2-TPR and H2-TPD.
采用浸渍法、溶胶-凝胶过程与普通干燥、超临界干燥过程相结合的方法制备了三种20%的NiO-Al2O3体系催化剂,利用BET、XRD、H2-TPR、H2-TPD等方法对各催化剂样品物化性质进行了表征,并考察了催化剂在流化床反应器中CH4-CO2重整反应的催化性能。
4) supercritical drying technique
超临界干燥
1.
Alumina aerogels of light nano mesoporous solid material are prepared from Al,n-butanol and ethyl acetoacetate by the sol-gel rute and the N_2 supercritical drying technique.
以铝、正丁醇、乙酰乙酸乙酯(EtAC)为原料,采用溶胶-凝胶法和N2超临界干燥技术制备出轻质纳米介孔固体A l2O3气凝胶,并对其光致发光特性进行了研究。
5) super critical drying
超临界干燥
1.
On the basis of knowledge of these influencing factors,the shrinkage cracking problems can be solved by control of microstructure of silica aerogels and ethanol super critical drying.
基于实验 ,分析了SiO2 气凝胶在制备过程中收缩开裂的原因 ,并系统研究了原料和溶剂 (水和乙醇 )的用量及催化剂的使用、老化等因素对SiO2 气凝胶结构的影响 ,利用这些因素来实现对其进行微观结构控制 ,采用乙醇超临界干燥技术解决该材料制备过程中的缩裂问
2.
Silica aerogels were prepared from TEOS through the sol gel process and super critical drying technique.
采用溶胶－凝胶法和超临界干燥技术，制备出品质优良的二氧化硅气凝胶，采用ＸＲＤ、ＴＥＭ、ＢＥＴ等手段对样品的比表面积、孔隙率及力学性质等进行了初步研究。
3.
Nano-porous material SiO2 aerogels were prepared from TEOS through sol-gel process and super critical drying technique.
本文以ＴＥＯＳ为原料，采用溶胶－凝胶法和超临界干燥工艺制备了轻质纳米多孔材料ＳｉＯ２气凝胶。
6) supercritical fluid drying
超临界干燥
1.
And at the same time,the developments of such techniques as supercritical fluid drying,azeotropic distillation,vacuum freeze drying ,microwave drying,used for the drying of nanometer particles are reviewed.
根据胶体干燥的理论,阐述了纳米粉体干燥过程的团聚机理,并综述了纳米粉体在超临界干燥、共沸蒸馏、真空冷冻干燥、微波干燥等干燥领域的研究进展。
2.
Nanosized TiO 2-ZnO (7～10 nm) composite catalyst was prepared from TiCl 4 an d Zn(NO 3) 2·6H 2O by sol-gel and supercritical fluid drying (SCFD) methods .
用超临界干燥法制备的催化剂具有粒径小、分布窄、比表面积大、分散性好和光催化活性高等特点 。
3.
The nano - sized MgO - Al2O3 binary aerogel was synthesized by sol - gel supercritical fluid drying technology using Al(NO3)3 and Mg(NO3)2 as the starting materials.
以硝酸铝和硝酸镁为主要原料,采用溶胶—凝胶—超临界干燥技术制备了纳米级MgO-Al_2O_3二元气凝胶。
补充资料：临界点干燥法
分子式：
CAS号：
性质：扫描电镜样品的一种处理方法。某些样品(如生物样品)因其表面附有黏液或体内的水分等，用扫描电镜观察前需进行干燥处理。普通干燥方法常因试样受到液体表面张力影响而变形，影响观测结果㈠临界点干燥法则将试样与碳酸混合，放于加压容器中加热，在31℃，0.73MPa的临界点时，碳酸逐渐放出CO2而使样品得以干燥又不改变样品表面形貌。
CAS号：
性质：扫描电镜样品的一种处理方法。某些样品(如生物样品)因其表面附有黏液或体内的水分等，用扫描电镜观察前需进行干燥处理。普通干燥方法常因试样受到液体表面张力影响而变形，影响观测结果㈠临界点干燥法则将试样与碳酸混合，放于加压容器中加热，在31℃，0.73MPa的临界点时，碳酸逐渐放出CO2而使样品得以干燥又不改变样品表面形貌。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条