太阳热反射隔热彩色涂料的制备及隔热性能  

Preparation and Insulation Properties of Colorful Solar Reflective Insulation Coating

作　　者：杨光 邓安仲 陈静波[2] 

机构地区：[1]中国人民解放军陆军勤务学院 [2]中国人民解放军62026部队

出　　处：《表面技术》2017年第11期269-275,共7页Surface Technology

摘　　要：目的从色彩三原色理论出发,制备隔热性能优异的太阳热反射隔热彩色涂料。方法将复合钛红、钴蓝、钛铬黄、镍钛黄和铬绿颜料复配为颜料,硅溶胶偶联苯丙复合乳液为成膜基料,制备了紫色、蓝色、橙色和绿色太阳热反射隔热彩色涂料。用扫描电子显微镜和电子探针对颜料微观结构和元素进行定量检测,用紫外/可见/近红外分光光度计探究颜料的反射特性、涂膜反射特性和污染处理后涂膜太阳光反射比降低率。分别从涂膜试板背面隔热温差和涂膜试板对箱体中心的辐射热流降低率两个方面,衡量太阳热反射隔热彩色涂料的隔热效果。结果紫色、蓝色、橙色和绿色4种太阳热反射隔热彩色涂膜的太阳光反射比均在0.5000以上,分别为0.6287、0.5433、0.7594和0.6991,涂膜污染后的太阳光反射比降低率均满足相关标准≤15%的要求。涂膜试板背面隔热温差均在3℃以上,涂膜试板对箱体中心的辐射热流降低率均在10%以上,隔热降温性能显著。结论采用色彩三原色理论选择合适的红外反射颜料,可制备出隔热性能优异的太阳热反射隔热彩色涂料。The work aims to prepare colorful solar reflective insulation coating of excellent insulation properties based on trichromatic theory. Colorful solar reflective insulation coatings in purple, blue, orange and green were prepared with silica sol coupling styrene-acrylic composite emulsion as paint binder, and composite titanium red, cobalt blue, titanium chrome yellow, nickel titanium yellow and chrome green as compound pigment. Microstructure and element of the pigments were determined quantitatively with scanning electron microscope and electron microprobe. Reflectance characteristics of the film, solar reflectance reduction rate after polluted treatment of the film as well as reflectance performance of pigments were characterized with ultraviolet-visible-near infrared spectrophotometer. Insulation effect of the colorful solar reflective insulation coating was measured from two aspects, i.e., temperature difference on reverse side of film panels and film panels radiation heat flux towards box center. Solar reflectance of the colorful solar reflective insulation films in purple, blue, orange and green was 0.6287, 0.5433, 0.7594 and 0.6991, respectively, all above 0.5000. Solar reflectance reduction rate after polluted treatment of the film met re-quirements of relevant standard, which demanded solar reflectance reduction rate after polluted treatment of ≤15%. Insulation temperature difference on reverse side of film test panel was above 3 ℃, and film panels radiation heat flux towards box center was above 10%, indicating excellent insulation performance of the colorful solar reflective insulation coatings. Thus, the coating prepared is of great application. Colorful solar reflective insulation coating of excellent insulation properties can be prepared by selecting suitable infrared reflectance pigment based on trichromatic theory.

关 键 词：反射隔热 硅溶胶 硅烷偶联剂 颜料 复合乳液 辐射热流 红外反射 

分 类 号：TQ630.7[化学工程—精细化工]