低发射率涂层材料研究

Paint Materials With Low Emissivity

测试了多种黏合剂和粉体及以聚氨酯树脂为黏合剂制成的涂膜在8～14μm波段的发射率。结果表明，Karton树脂红外透明性好，具有较低的红外发射率；铝粉制成涂膜后发射率较低，且涂膜的发射率与铝粉的加入量、粒径等有关；掺锡氧化铟（ITO）薄膜具有很低的发射率，其发射率与ITO膜的厚度、含氧量等有关。

The infrared emissivity of many adhesives, pigments and their paints with polyurethane adhesives in 8 to 14 p.m waveband were tested. It is found that the Karton resin and aluminium-based paint give rise to acceptably low emissivity, and the size and shape of the aluminium have an obvious influence on the emittanee of the paint. The indium tin oxide（ITO） thin film has extremely low emissivity,and,the emittance of film is also affected by its thickness and oxygen content.