Method for rapidly synthesizing silicon dioxide aerogel by using electron beam irradiation technology
The rapid synthesis of silica aerogels through electron beam irradiation technology solves the problems of complex processes and contamination in existing processes, and achieves an efficient and simplified preparation process, which is suitable for industrial production.
CN119750595APending Publication Date: 2025-04-04YANTAI UNIV
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Patent Information
- Application Number
- CN202510041097.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2025-04-04
AI Technical Summary
Technical Problem
The existing silica aerogel preparation process is complex, with a long cycle, and may introduce secondary pollution, limiting its industrial production.
Method used
The silicon dioxide aerogel is rapidly synthesized by electron beam irradiation technology. By irradiating the precursor under the electron beam at room temperature, it promotes its gelation, thereby shortening the synthesis time and avoiding secondary contamination.
Benefits of technology
This method significantly shortens the synthesis time of silica aerogel, improves the synthesis efficiency, and does not require the introduction of added materials, avoids secondary pollution, and is suitable for large-scale industrial production.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of preparation of silicon dioxide aerogel, and particularly relates to a method for quickly synthesizing silicon dioxide aerogel by using an electron beam irradiation technology, which comprises the following steps: (1) preparing a precursor: uniformly mixing a silicon source, water and an organic solvent according to a ratio at normal temperature and pressure in an air atmosphere, stirring and completely hydrolyzing to obtain the precursor; (2) adjusting the pH value of the precursor: adding ammonia water into the precursor prepared in the step (1) to adjust the pH value; (3) gelling of the precursor: at normal temperature and normal pressure, immediately irradiating the precursor of which the pH value is adjusted in the step (2) under electron beams, and then standing to wait for gelling; and (4) aerogel preparation: drying the gel synthesized by irradiation in the step (3) to obtain the aerogel. The method has the beneficial effects that the gelation time of the precursor is shortened on the premise of ensuring the heat-conducting property of the aerogel through electron beam irradiation, so that the efficiency of synthesizing the silicon dioxide aerogel is improved.
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