Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing carbon/silicon dioxide aerogel
The invention relates to a method for preparing carbon/silicon dioxide aerogel. The method aims to solve the technical problems that an existing two-step peptization method of hybrid aerogel needs to be subjected to coagulation respectively, and is long in process, complex in technology and long in sol coagulation time. The method includes the steps that first, the 'colloidal nucleus' of sol is prepared; second, a mixed sol precursor of the carbon/silicon dioxide aerogel is prepared; third, resorcinol-formaldehyde/silicon dioxide aerogel is prepared; fourth, the carbon/silicon dioxide aerogel is prepared in a pyrolysis mode. The strength of the aerogel prepared through the method is improved. Compared with the prior art, the aerogel has the advantages that the technology is simple and convenient, control is easy, catalysts are needless, preparation time is shortened, cost is lowered, scale and industrial production can be achieved more easily, and it is great significance to promoting the application of hybrid gel.
Method for preparing carbon/silicon dioxide aerogel
The invention relates to a method for preparing carbon/silicon dioxide aerogel. The method aims to solve the technical problems that an existing two-step peptization method of hybrid aerogel needs to be subjected to coagulation respectively, and is long in process, complex in technology and long in sol coagulation time. The method includes the steps that first, the 'colloidal nucleus' of sol is prepared; second, a mixed sol precursor of the carbon/silicon dioxide aerogel is prepared; third, resorcinol-formaldehyde/silicon dioxide aerogel is prepared; fourth, the carbon/silicon dioxide aerogel is prepared in a pyrolysis mode. The strength of the aerogel prepared through the method is improved. Compared with the prior art, the aerogel has the advantages that the technology is simple and convenient, control is easy, catalysts are needless, preparation time is shortened, cost is lowered, scale and industrial production can be achieved more easily, and it is great significance to promoting the application of hybrid gel.
Method for preparing carbon/silicon dioxide aerogel
HE FEI (Autor:in) / LI YA (Autor:in) / LUO JIN (Autor:in) / LI MINGWEI (Autor:in) / HE XIAODONG (Autor:in)
04.11.2015
Patent
Elektronische Ressource
Englisch
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