التفاصيل البيبلوغرافية
| العنوان: |
静电纺陶瓷纳米纤维高温隔热材料的研究进展. (Chinese) |
| Alternate Title: |
Research progress in high-temperature insulation materials of electrospun ceramic nanofiber. (English) |
| المؤلفون: |
仇小晗, 李泳材, 许梦月, 刘呈坤, 张 坤, 毛 雪 |
| المصدر: |
China Synthetic Fiber Industry; aug2024, Vol. 47 Issue 4, p62-67, 6p |
| مصطلحات موضوعية: |
HEAT radiation & absorption, CERAMIC fibers, HEAT resistant materials, THERMAL conductivity, HIGH temperatures, THERMAL insulation |
| Abstract (English): |
The research status of the preparation technologies and application of electrospun ceramic nanofibrous membranes and ceramic nanofibrous aerogels was reviewed in the field of thermal insulation. Flexible ceramic nanofibrous membranes have low thermal conductivity, high flexibility and high temperature resistance, which can be used in various high temperature narrow spaces, however, it is difficult to effectively block thermal radiation due to its low thickness, resulting in poor thermal insulation performance of nanofibrous membranes. Ceramic nanofibrous aerogels can effectively block thermal radiation due to its high thickness, but the high porosity of aerogel and large internal pores result in obvious high temperature thermal convection, hence the ceramic nanofibrous aerogels cannot achieve the desired high temperature thermal insulation effect. The research in the future should be focused on optimizing the structure of ceramic fibers, improving their thermal insulation performance and exploring multiphase composite technologies to further reduce the thermal radiation of ceramic nanofibrous membrane and the thermal convection of ceramic nanofibrous aerogel, so as to improve the thermal insulation effect of the both in high temperature environment and provide a better solution for the practical application of thermal insulation in extreme temperature environment. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
综述了静电纺陶瓷纳米纤维膜和陶瓷纳米纤维气凝胶的制备技术及其在高温隔热领域的应用研究 现状. 柔性陶瓷纳米纤维膜具有低导热系数、高柔韧性、耐高温性, 可应用于各类高温狭小空间, 但因其厚度 较薄, 难以有效阻挡热辐射, 导致其隔热性能较差. 陶瓷纳米纤维气凝胶厚度较大, 可有效阻挡热辐射, 但气 凝胶孔隙率较高、内部孔隙较大, 导致高温热对流明显, 高温隔热效果未达到理想效果. 未来的研究方向是 优化陶瓷纤维结构、改善其隔热性能, 探索多相复合技术等手段, 进一步降低陶瓷纳米纤维膜的热辐射和陶 瓷纳米纤维气凝胶的热对流, 以提升二者在高温环境中的隔热效果, 为其在极端温度环境隔热的实际应用提 供更好的解决方案。 [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |