石墨烯增效环氧导热涂层的制备及应用  

Preparation and Application of Graphene Enhanced Epoxy Thermal Conductivity Coating

作　　者：任云鹏 邢宝岩 李世杰[1] 王昊[1] 张进[1] 赵建国 Ren Yunpeng;Xing Baoyan;Li Shijie;Wang Hao;Zhang Jin;Zhao Jianguo(Engineering Research Center of Coal-based Ecological Carbon Sequestration Technology of the Ministry of Education,Shanxi Datong University,Datong,Shanxi 037009,China;Shaoxing Institute of Technology,Shanghai University,Shaoxing,Zhejiang 312071,China)

机构地区：[1]煤基生态碳汇技术教育部工程研究中心,山西大同大学,山西大同037009 [2]上海大学绍兴研究院,浙江绍兴312071

出　　处：《涂料工业》2024年第5期66-70,共5页Paint & Coatings Industry

基　　金：山西大同大学校级项目(22CX02、22CX16);山西大同大学产学研项目(2022CXY17)。

摘　　要：为提高冷冻设备中蒸发器的散热效率,以水可分散功能化石墨烯作为填料,通过相转移方法将其分散到环氧树脂基体中,在不锈钢基材上成功制备出石墨烯/环氧导热涂层。并对其导热性以及耐腐蚀性能进行研究。结果表明:不同石墨烯含量的涂层导热性能有显著差异,当石墨烯添加量为9%时,导热率高达5.82 W/(m·K),可实现快速散热,且具有优异的耐水性、耐酸性,在适量的石墨烯添加量时,可获得防腐性能优异的导热涂层。相比无涂层试样,添加9%石墨烯的导热涂层在室温下传热过程的最大温差可达5℃,-80℃条件下的最大温差可达16℃,这一涂层在速冻领域有潜在应用价值。To improve the heat dissipation efficiency of the evaporator in refrigeration equipment,water-dispersible functionalized graphene was used as a filler.It was dispersed into the epoxy resin matrix through the phase transfer method,and a graphene/epoxy thermally conductive coating was successfully prepared on the stainless steel substrate.Its thermal conductivity and corrosion resistance were studied.The results showed that there were significant differences in the thermal conductivity of coating with different graphene contents.When the amount of graphene added was 9%,the thermal conductivity was as high as 5.82 W/(m·K),which could achieve rapid heat dissipation and had excellent water resistance and acid resistance.When the amount of graphene added was appropriate,a thermally conductive coating with excellent corrosion resistance could be obtained.Compared with the uncoated sample,the maximum temperature difference of the heat transfer process of the thermally conductive coating with 9%graphene added could reach 5℃at room temperature and 16℃at-80℃.This coating had potential application value in the field of quick-frozen food.

关 键 词：导热涂层 散热 石墨烯 环氧涂层 

分 类 号：TQ637.6[化学工程—精细化工]