摘要
以纳米掺锑二氧化锡(ATO)为功能填料、水性聚氨酯(WPU)为成膜物质,通过热固化制备了以PET(聚对苯二甲酸乙二醇酯)为基材的窗膜材料。采用自制隔热测试装置、紫外-可见-近红外分光光度计对窗膜性能进行表征,并通过纵坐标加权法对窗膜反射及透射的能量进行计算。性能研究表明:纳米ATO/WPU窗膜的可见光透射比高、隔热性能显著,且隔热性能随ATO含量的增大而提高;当m(ATO浆料)∶m(WPU)=1∶3时,经窗膜阻隔的测试箱内温度较对比样低4.4℃,可见光透射比达79.9%;能量计算表明,其隔热性能源于分散在其中的纳米ATO对太阳辐射的吸收,而非反射。
PET window films were prepared using antimony doped tin oxide （ATO） nano-particles as functional fillers and water-based polyuretkane（WPU） as film-forming substance. The films were characterized by heat insulation testing set,Uv-Vis-Nir spectrophotometer, and the total solar energy transmittance and reflectance were obtained by weighted ordinates. Performance study show that the visible light transmittance of nano-ATO/WPU window film was high and its thermal performance was significant,and insulation performance improved with the increase of ATO content. When m（ATO slurry） ：m （WPU） was 1：3,the temperature in the test box isolated by the film was 4.4℃ lower than the sample,and its visible light transmittance reached 79.9%. Energy calculation showed that： the absorption of solar radiation has resulted in the heat insulation.
出处
《新型建筑材料》
北大核心
2011年第11期87-89,93,共4页
New Building Materials
