Preparation method of phenolic resin aerogel

A technology of phenolic resin and airgel, which is applied in the preparation/purification of carbon, chemical instruments and methods, and other chemical processes. It can solve the problems of complex synthesis, limited application, and high cost of ionic liquids, and achieves wide sources and easy storage. , the effect of expanding the scope of application
CN103709346AActive Publication Date: 2014-04-09UNIV OF SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF SCI & TECH OF CHINA
Publication Date
2014-04-09

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Abstract

The invention discloses a preparation method of phenolic resin aerogel. The preparation method is characterized in that chitosan, one or more acid, one or more filling materials, one or more phenols, one or more aldehydes, and water or a water-anhydrous ethanol mixture are mixed; the mixture undergoes a hydrothermal reaction to produce phenolic resin organogel; the phenolic resin organogel is immersed in an organic solvent for replacement; and the replacement product is subjected to supercritical CO2 drying so that the phenolic resin aerogel is obtained. The preparation method has simple processes and safe and reliable reactions and realizes adjustment of a structure and mechanical properties of the phenolic resin organogel. The structure and density of the phenolic resin aerogel obtained by drying and porosity and a specific surface area of the derivative porous carbon material obtained by carbonization of the phenolic resin aerogel are adjusted and controlled well.
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Description

technical field

[0001] The invention belongs to the technical field of material synthesis, and more specifically relates to a preparation method of phenolic resin gel. Background technique

[0002] As one of the three major synthetic resins, phenolic resin has experienced more than 100 years of development history, and has been widely used in various fields such as national defense and military industry, construction, transportation, chemical industry and energy. At present, phenolic resin has attracted people's interest as a carbon source to prepare various nanostructured porous carbon materials. Porous carbon materials have attracted extensive attention due to their high specific surface area, controllable micro / nano pore size, and excellent electrical conductivity, and are widely used in various fields, such as adsorption, filtration separation, photonic crystals, catalyst supports, electrochemical capacitors, lithium There are potential applications in ion batteries, so...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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