Abstract: In this paper, heat insulating effect of antimony doped tin oxide(ATO)/polyurethane( PU) transparent coating was inrestigated based on long time measurement. The results showed that the light energy approached balance after a certain period of time for heat insulated space as well as coating itself. The coating has durable heat insulating effect. The coating was characterized by ultraviolet-visible light-infrared spectrophotometer, which confirmed the main response of coating to the infrared light was absorbtion instead of reflection. The macro and micro mechanism of heat insulation was studied by analyzing the light energy flow diagram and relevant semiconductor physics theory. It showed that the insulation of ATO nanoparticle to the incident light energy mainly derived from absorbing most part of photons and reflecting a small part of photons in UV and IR areas.

Key words: antimony doped tin oxide( ATO), polyurethane coating, transparent and insulation, mechanism analvsis

摘要： 对掺锑二氧化锡(ATO)基透明隔热涂层的隔热效果进行了长时间测试,发现无论对被隔热空间还是对涂层本身,一定时间后能量均达到动态平衡,涂层具有持久隔热效果。用紫外-可见光-红外分光光度计表征了涂层光谱性能,发现其对红外光主要以吸收为主而非反射。根据光源能量流程去向和半导体物理学的相关理论对宏微观隔热机理进行了深入研究,认为ATO/PU(聚氨酯)涂层对入射光能量的阻隔,在紫外区域以本征吸收为主,反射为辅,在红外区域以自由载流子吸收为主,反射为辅,从而产生良好的隔热效果。

关键词: 掺锑二氧化锡(ATO), 聚氨酯涂层, 透明隔热, 机理分析