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玻璃纤维增强的聚烯复合材料具有高太阳反射率,用于保温应用

Csenge Vámos^1,2, Tamás Bárány^1,3

¹Department of Polymer Engineering, Faculty of Mechanical Engineering, Budapest University of Technology and Economics, Műegyetem rkp. 3., H-1111 Budapest, Hungary.

|February 13, 2025

概括

研究人员使用改性聚烯复合材料开发出更强的反射绝缘材料. 这项创新通过反射阳光并有效降低表面温度来提高能源效率.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
热力工程是热力工程中的一个.

背景情况:

反射隔热是能源效率的关键,它通过反射太阳辐射来防止热量增加.
以前的工作创造了具有高太阳反射性的多孔聚烯 (PP),但缺乏实际应用的机械强度.
由于安装和环境压力,整洁多孔PP的机械限制阻碍了其在隔热中使用.

研究的目的:

提高多孔聚烯的机械性能和反射隔热性能.
探索基于溶剂的表面修饰技术在玻璃纤维 (GF) 增强的PP复合板上的应用.
研究GF增强,核化剂和表面修饰对材料性能和热性能的综合影响.

主要方法:

在玻璃纤维 (GF) 增强的聚烯复合板上应用基于溶剂的表面修饰.
加入30%重量的GF,核化剂和表面修饰.
微型和纳米结构的多孔外层和球状物大小 (0.5-2.0μm) 的表征.

主要成果:

在复合板中实现了增强的模量 (~4 GPa) 和拉伸强度 (60 MPa).
达到高达94%的平均太阳反射率.
与整洁的PP板相比,显示了内部温度的显著降低24.1°C.

结论:

基于溶剂的表面修改有效地改善了PP复合材料的机械性能和反射隔热.
GF增强剂,核化剂和表面修饰的组合对于高性能至关重要.
这项技术为反射隔热应用提供了成本效益高,高效的多孔PP复合板的途径.

关键词:

用玻璃纤维增强的聚烯复合材料.层次性的多孔层层.反射隔热反射隔热的绝缘.太阳的反射率是太阳的反射率.

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