多相隔热功能阶段之间的协同效应对制复合材料的机械和隔热性能
Chongguang Zang1, Hongwei Pan2, Yi Jun Chen1
1Beijing Institute of Technology, South Street 5th of Zhongguancun, Beijing 100811, China.
ACS omega
|August 14, 2023
概括
这项研究开发了一种灵活的绝热复合材料,使用空心陶微球,空心二氧化微球和油. 复合材料具有较低的导热率和高的结构强度,非常适合先进的绝缘应用.
科学领域:
- 材料科学 材料科学 材料科学
- 复合材料 复合材料 复合材料
- 热绝缘 热绝缘 热绝缘 热绝缘
背景情况:
- 开发先进的绝热材料对于能源效率和安全至关重要.
- 基于 (SR) 的复合材料具有潜力,但需要增强的热和机械性能.
研究的目的:
- 准备一种灵活高效的热绝缘复合材料,具有低导热率和高结构强度.
- 为了研究空心陶微球 (HCM),空心微球 (HSM) 和氧油对 (SR) 属性的协同作用.
主要方法:
- 使用扫描电子显微镜 (SEM),热重力测量分析 (TG),导热度计和通用测试机.
- 分析了HCMs,HSMs和氧油对SR的机械和热力学性能的影响.
- 研究了多相复合材料的绝热机制.
主要成果:
- 与纯SR相比,复合材料显示显著提高了热稳定性和机械性能.
- 样本18H的最大分解温度 (Tmax) 达到621.3°C,燃烧率为77.5%.
- 在1000°C的热处理后,复合材料的导热率为0.064W/m·K,线性收缩率低 (9.4%).
结论:
- HCMs,HSMs和氧油的协同作用有效地提高了SR复合材料的热绝缘和结构完整性.
- 这项研究为创建高性能隔热和保护材料提供了宝贵的参考.
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