滤袋超温色标涂层技术与材料
Overtemperature Colour Coded Coating Technology and Materials for Filter Bag
为了方便判定滤袋超温失效,对能通过颜色变化反映温度变化的超温色标涂层进行了研究.以CuSO4·5H2O和硫酸锰为变色颜料,以环氧改性有机硅树脂作为成膜物,制备了一种可用于滤袋监控60~200 ℃具有多种热致变色行为的不可逆示温涂层,并对其物理性能、机械性能进行测试,通过XRD和热重-差热分析法对变色颜料进行变色机理探究.结果表明,涂层的物理性能和机械性能均满足常规涂层国家标准,在温度变化时能呈现出显著色差,实现了蓝色—浅绿色—黄色—棕黄色的颜色变化,并建立了颜色-温度函数,避免了人工监测温度判读误差.
In order to facilitate the determination of the overtemperature failure of filter bags,the overtemperature color changing coating that can reflect temperature changes through color changes is studied. Using CuSO4·5H2O and MnSO4·H2O as color changing pigments and epoxy modified organosilicon resin as the film-forming agent, an irreversible temperature indicating coating with multiple thermochromic behaviors for monitoring filter bags at 60~200 ℃ was prepared. The physical and mechanical properties of the coating were tested, and the color changing mechanism of the color-changing pigments was explored by XRD and thermogravimetric differential thermal analysis. The results show that the physical and mechanical properties of the coating meet the national standards for conventional coatings. It can present significant color differences when the temperature changes, achieving a color change from blue to light green to yellow to brownish yellow, and a color-temperature function was established, avoiding the error of manual temperature monitoring and interpretation.
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国家自然科学基金资助项目(52304210)
中国博士后科学基金资助项目(2023M740545)
中央高校基本科研业务费专项资金资助项目(N2301022)
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