碳纳米管涂层的电沉积制备及其红外辐射性能研究
Electrodeposition and Infrared Radiation Properties of Carbon Nanotube Coatings
王力楠 1苏伟涛 1郝小鹏2
作者信息
- 1. 杭州电子科技大学理学院,浙江 杭州 310018
- 2. 中国计量科学研究院热工计量科学与材料特性测量技术研究所,北京 100013
- 折叠
摘要
通过电沉积法在铝衬底表面制备碳纳米管(Carbon Nanotubes,CNT)涂层,研究了分散液的分散条件和电沉积条件对可见光及红外波段涂层反射特性的影响.实验结果表明,超声空化作用提高了碳纳米管悬浊液的分散性和电沉积效率,进而降低涂层反射率.扫描电镜(SEM)结果表明,增加电沉积时间可有效提高涂层覆盖密度.在 20V 恒压下,电沉积 40 分钟后碳纳米管充分覆盖于衬底表面,同时涂层表面的粗糙度开始明显提高,红外反射率显著降低.根据红外反射率光谱,通过增加超声时间和电沉积时间,可得到近红外反射率小于 0.0014 的碳纳米管涂层,证明电沉积法制备碳纳米管涂层的可行性.
Abstract
Carbon nanotube(CNT)coatings are prepared on aluminum substrate surfaces by electrodeposition.The effects of dispersion conditions and electrodeposition conditions on the reflective properties of the coatings in visible and infrared wavelengths are investigated.The experimental results indicate that ultrasonic cavitation improves the dispersion and electrodeposition efficiency of carbon nanotube suspensions,thereby reduce the reflectivity of the coating.Scanning electron microscopy(SEM)results indicate that increasing the electrodeposition time can effectively improve the coating coverage density.At a constant voltage of 20 V,after 40 minutes of electrodeposition,carbon nanotubes fully cover the substrate surface,while the surface roughness of the coating begins to be significantly improved,and the infrared reflectance is significantly decreased.According to the infrared reflectance spectrum,carbon nanotube coatings with near-infrared reflectance less than 0.001 4 can be obtained by increasing ultrasonic time and electrodeposition time,which shows the feasibility of electrodeposition method for preparing carbon nanotube coatings.
关键词
碳纳米管涂层/电沉积/红外反射率Key words
Carbon nanotube coatings/Electrodeposition/Infrared reflectance引用本文复制引用
基金项目
浙江省自然科学基金(LZ22A040003)
出版年
2024
NETL
NSTL
万方数据