多功能碳纤维增强的C / SiOC气凝复合材料,用于有效吸收电磁波,隔热和阻燃性
Dongdong Yang1, Shun Dong1, Tangyin Cui2
1National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin, 150001, P. R. China.
Small (Weinheim an der Bergstrasse, Germany)
|December 27, 2023
概括
这项研究引入了一种新型的碳纤维增强C/SiOC气凝复合材料,用于先进的电磁波吸收. 该材料表现出优异的微波吸收,机械强度,隔热和阻燃性.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 复合材料 复合材料 复合材料
背景情况:
- 碳纤维复合材料对电磁波 (EM) 吸收具有前景.
- 整合机械强度,隔热和阻燃等多种功能仍然是一个挑战.
研究的目的:
- 开发一种多功能碳纤维增强C/SiOC气凝 (CF/CS) 复合材料.
- 通过受控制造来研究复合材料的调节性质.
主要方法:
- 阳光凝浸与环境干燥过程相结合.
- 通过调整浸周期,制造具有不同密度的CF/CS复合材料.
主要成果:
- S2复合材料的最佳反射损失为-65.45dB,比S0 (-10.90dB) 显著改善.
- 机械强度大大提高,达到10.37 MPa (x/y) 和4.93 MPa (z) 的S2.
- 与原来的碳纤维料相比,CF/CS复合材料表现出优越的绝热性能和良好的阻燃性能.
结论:
- 开发的CF/CS复合材料成功地整合了EM波吸收,机械强度,隔热和阻燃性.
- 这项工作为设计多功能电磁波吸收材料提供了宝贵的见解.
相关概念视频
Fiber Reinforced Concrete
79
Fiber-reinforced concrete significantly enhances the structural and nonstructural properties of traditional concrete by incorporating fibers like steel, glass, and polymers. These fibers, varying from natural ones such as sisal and cellulose to manufactured ones like polypropylene and Kevlar, are mixed into hydraulic cement with aggregates. Steel fibers, often preferred for their robustness, contribute to improved ductility, toughness, and post-cracking performance. The concrete is classified...
79
Thermal Insulation in Masonry Walls
124
In hot, dry climates, the thermal mass of masonry walls can be beneficial, absorbing heat during the day and releasing it at night, thereby stabilizing indoor temperatures. However, in most other climates, additional insulation is necessary to enhance thermal resistance.
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh....
External insulation can be applied using an Exterior Insulation and Finish System (EIFS), which involves affixing panels of plastic foam to the wall and covering them with a polymeric stucco reinforced with glass fiber mesh....
124


