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High-temperature heat-insulation flame-retardant aerogel felt as well as preparation method and application thereof
The invention provides a high-temperature heat-insulation flame-retardant aerogel felt as well as a preparation method and application thereof, and belongs to the technical field of functional composite material preparation. According to the invention, the glass fiber mat is used as a fiber matrix, the composite silicon-based aerogel prepared by a freeze-drying method is processed and treated through the processes of raw material preparation, solvent treatment, material mixing, freeze-drying and the like in sequence, and through refined raw material selection and proportioning, the composite silicon-based aerogel is obtained. The high-temperature heat-insulation flame-retardant aerogel felt has a lower heat conductivity coefficient at a high temperature, and when the lithium battery is subjected to thermal runaway, the high-temperature heat-insulation flame-retardant aerogel felt plays a better role in flame retardance and heat insulation at a higher temperature, prevents the propagation of thermal runaway, and has very good practicability.
本发明提供了一种高温隔热阻燃气凝胶毡及其制备方法和应用，属于功能复合材料制备技术领域；本发明以玻璃纤维毡作为纤维基体，采用冷冻干燥方法制备的复合硅基气凝胶，依次通过原料准备、溶剂处理、材料混合、冷冻干燥等流程完成对产品的加工处理，通过精细化的原料选择及配比，使高温隔热阻燃气凝胶毡在高温下具有更低的导热系数，当锂电池热失控发生时，在较高的温度下，更好的发挥阻燃隔热作用，阻止热失控的传播，具有很好的实用性。
High-temperature heat-insulation flame-retardant aerogel felt as well as preparation method and application thereof
The invention provides a high-temperature heat-insulation flame-retardant aerogel felt as well as a preparation method and application thereof, and belongs to the technical field of functional composite material preparation. According to the invention, the glass fiber mat is used as a fiber matrix, the composite silicon-based aerogel prepared by a freeze-drying method is processed and treated through the processes of raw material preparation, solvent treatment, material mixing, freeze-drying and the like in sequence, and through refined raw material selection and proportioning, the composite silicon-based aerogel is obtained. The high-temperature heat-insulation flame-retardant aerogel felt has a lower heat conductivity coefficient at a high temperature, and when the lithium battery is subjected to thermal runaway, the high-temperature heat-insulation flame-retardant aerogel felt plays a better role in flame retardance and heat insulation at a higher temperature, prevents the propagation of thermal runaway, and has very good practicability.
本发明提供了一种高温隔热阻燃气凝胶毡及其制备方法和应用，属于功能复合材料制备技术领域；本发明以玻璃纤维毡作为纤维基体，采用冷冻干燥方法制备的复合硅基气凝胶，依次通过原料准备、溶剂处理、材料混合、冷冻干燥等流程完成对产品的加工处理，通过精细化的原料选择及配比，使高温隔热阻燃气凝胶毡在高温下具有更低的导热系数，当锂电池热失控发生时，在较高的温度下，更好的发挥阻燃隔热作用，阻止热失控的传播，具有很好的实用性。
High-temperature heat-insulation flame-retardant aerogel felt as well as preparation method and application thereof
一种高温隔热阻燃气凝胶毡及其制备方法和应用
CHEN MINGYI (author) / SHENG RUINAN (author) / WANG SHIJUN (author) / CHEN YIN (author) / KONG QINGHONG (author) / ZHOU YU (author)
2024-11-26
Patent
Electronic Resource
Chinese
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