水性石墨烯/碳纤维电热涂料的制备及性能研究  

Study on Preparation and Properties of Graphene/Carbon Fiber Waterborne Electrothermal Coatings

作　　者：徐晶璐 陈锦民 温绍国[1,2] 王燕 陈亚博 王长睿 王静 XU Jinglu;CHEN Jinmin;WEN Shaoguo;WANG Yan;CHEN Yabo;WANG Changrui;WANG Jing(School of Chemistry and Chemical Engineering,Shanghai University ofEngineering Science,Shanghai 201620,China;Xinyitu Waterborne Coatings Joint Laboratory,Shanghai University ofEngineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学化学化工学院,上海201620 [2]上海工程技术大学新壹涂水性涂料联合实验室,上海201620

出　　处：《上海工程技术大学学报》2021年第1期15-21,共7页Journal of Shanghai University of Engineering Science

摘　　要：电热涂料是在导电涂料的基础上开发出的一种直接将电能转化为热能或辐射能的功能性涂料.研究一种以改性碳纤维和石墨烯为导电填料的水性环氧双组分发热涂料体系.利用扫描电子显微镜(SEM)对涂层表面和断面进行表征,发现碳纤维在涂层中分布均匀,形成良好的导电传热网络.导热测试结果显示涂层的导热系数为0.40 W/(m·K);涂层的温升曲线分3个阶段规律增长,升温在15~28 min达到峰值,理论热效能高达63.02%;涂层的安全电压为24 V,并具有良好的绝缘性能,能够保障使用安全.Electrothermal coating is a kind of functional coating which can directly convert electric energy into heat or radiation energy on the basis of conductive coating.A waterborne epoxy two-component thermal coating system with modified carbon fiber and graphene as conductive filler was studied.Scanning electron microscopy(SEM)was used to characterize the surface and section of the coating.It was found that the carbon fibers were evenly distributed in the coating,forming a good conductive and heat transfer network.The thermal conductivity test results show that the thermal conductivity coefficient of the coating is 0.40 W/(mK).The temperature rise curve of the coating increased regularly in three stages,and reached the peak value in 15〜28 min,and the theoretical thermal efficiency reached 63.02%.The safe voltage of the coating is 24 V,and it has good insulation performance,which can guarantee the use safety.

关 键 词：电热涂料 碳纤维 石墨烯 水性涂料 安全性能 

分 类 号：TQ630.1[化学工程—精细化工]