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A platform for research: civil engineering, architecture and urbanism
SiO2 aerogel with bactericidal function and preparation method therefor
The present invention discloses a SiO2 aerogel with a sterilization function and a preparation method therefor. The method comprises: taking orthosilicate as a raw materials to prepare polyethoxydisiloxane with various polymerization degrees as a silicon source; uniformly mixing the silicon source, a silver nanowire alcohol solvent, alcohol and an alkali catalyst; then crushing a wet gel before replacing the same with low surface tension liquid alkoxy or fluoroalkane and modifying the gel with a hydrophobic agent; performing filtration or centrifugation at a normal pressure; and finally drying the gel to obtain various SiO2 aerogel particles with a bactericidal function. According to the present invention, continuous production of the SiO2 aerogel with the bactericidal function is achieved; the production period is short, the production cost is low, and the aerogel dislcosed by the present invention is energy-saving and environmental-friendly. The obtained composite aerogel has a nano porous structure and has restively ideal density, thermal conductivity and specific surface area, and further has the functions of conduction, microorganism prevention, sterilization and air purification while satisfies a heat insulation performance.
SiO2 aerogel with bactericidal function and preparation method therefor
The present invention discloses a SiO2 aerogel with a sterilization function and a preparation method therefor. The method comprises: taking orthosilicate as a raw materials to prepare polyethoxydisiloxane with various polymerization degrees as a silicon source; uniformly mixing the silicon source, a silver nanowire alcohol solvent, alcohol and an alkali catalyst; then crushing a wet gel before replacing the same with low surface tension liquid alkoxy or fluoroalkane and modifying the gel with a hydrophobic agent; performing filtration or centrifugation at a normal pressure; and finally drying the gel to obtain various SiO2 aerogel particles with a bactericidal function. According to the present invention, continuous production of the SiO2 aerogel with the bactericidal function is achieved; the production period is short, the production cost is low, and the aerogel dislcosed by the present invention is energy-saving and environmental-friendly. The obtained composite aerogel has a nano porous structure and has restively ideal density, thermal conductivity and specific surface area, and further has the functions of conduction, microorganism prevention, sterilization and air purification while satisfies a heat insulation performance.
SiO2 aerogel with bactericidal function and preparation method therefor
ZHANG XUETONG (author) / WANG JIN (author) / HE WEINA (author)
2016-01-13
Patent
Electronic Resource
English
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