A polysaccharide aerogel material and its preparation method and application
By mixing sodium carboxymethylcellulose with water and metal ion solution to form a hydrogel and soaking it in an organic solvent, the problem of difficulty in preparing nanoporous aerogels in the prior art is solved, and efficient and environmentally friendly aerogel preparation is achieved, which is suitable for thermal insulation and heat insulation applications.
CN118344647BActive Publication Date: 2025-04-04XIANGTAN UNIV
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Patent Information
- Application Number
- CN202410596911.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2044-05-14
AI Technical Summary
Technical Problem
It is difficult for the prior art to prepare nanoporous aerogels using carboxymethylcellulose itself as the matrix, and the traditional methods have problems such as insufficient mechanical strength, complex synthesis process and environmental pollution.
Method used
By mixing sodium carboxymethylcellulose with water, adding metal ion solution to form a hydrogel, and soaking in an organic solvent, the polysaccharide aerogel material is finally obtained by drying.
Benefits of technology
It has achieved the preparation of nanoporous aerogels based on carboxymethylcellulose, which has good mechanical strength and environmental friendliness, and is suitable for thermal insulation and other fields.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to the technical field of aerogel preparation, and in particular to a polysaccharide aerogel material and a preparation method and application thereof. The present invention obtains a sodium carboxymethyl cellulose solution by mixing sodium carboxymethyl cellulose with water; mixes the sodium carboxymethyl cellulose solution with a metal ion solution to obtain a carboxymethyl cellulose hydrogel; soaks the carboxymethyl cellulose hydrogel in an organic solvent to obtain an organic gel, and obtains a polysaccharide aerogel material after drying. The preparation method of the present invention is simple and reliable, and the raw material sodium carboxymethyl cellulose is a natural polymer, which is environmentally friendly, abundant in resources, has good biocompatibility, and is biodegradable; the thermal conductivity of the aerogel prepared by the present invention is 20 to 40 mW / (m·K) at room temperature, and has great application prospects in the field of thermal insulation.
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