石墨烯微片水性散热涂料的性能研究  

Performance of Graphene Nanoplatelets Water-based Dissipating Coating

作　　者：袁超 王刚 郭冰 储富强[2] 陶永新[3] YUAN Chao;WANG Gang;GUO Bing;CHU FuQiang;TAO YongXin(Jiangsu Jiangnan Xiyuan Graphene Technology Co.,Ltd.,ChangZhou 213149,China;Assets Management Co.,Ltd.,Changzhou University,Changzhou 213164,China;School of Food Science and Technology,Changzhou University,Changzhou 213164,China)

机构地区：[1]江苏江南烯元石墨烯科技有限公司,江苏常州213149 [2]常州大学资产经营管理有限公司,江苏常州213164 [3]常州大学食品学院,江苏常州213164

出　　处：《鲁东大学学报（自然科学版）》2020年第3期252-257,共6页Journal of Ludong University:Natural Science Edition

摘　　要：采用溶剂剥离法制备了石墨烯微片,方法简单成本低且环保,适合大规模工业化生产.以制得的石墨烯微片为导热填料,水性环氧树脂和水性聚氨酯为成膜物质制备水性散热涂料,利用红外成像仪和导热系数仪分析其导热散热性能,并测试了散热涂层的机械性能.结果表明,当散热涂层中的石墨烯微片质量分数为15%时,其导热系数可达到0.97 W·m-1·K-1,在55℃和85℃的热源下涂层分别降温7℃和9℃.通过SEM形貌断面图发现随着石墨烯微片的加入使得散热涂层形成了一种有利于热量传递的“岛”—“岛”网络,当含量达到20%时因为团聚现象显著而导致散热效果下降.此外,该散热涂层具有良好的机械性能,应用价值佳.The graphene nanoplatelets,prepared by the solvent stripping method,are suitable for large-scale industrial production.The dissipating coating was prepared by using water-based epoxy resin and water-based polyurethane as film-forming materials and graphene nanoplatelets as heat-conducting fillers.The thermal conductivity and heat dissipation properties of the coating were characterized by infrared imager and thermal conductivity meter,and its mechanical property was tested.The results showed that when the mass fraction of graphene nanoplatelets in the dissipating coating was 15%,its thermal conductivity reached 0.97 W·m-1·K-1,and the coating was cooled by 7℃and 9℃under the heat sources of 55℃and 85℃,respectively.According to the SEM morphology cross-section,it was found that with the addition of graphene nanoplatelets,the dissipating coating formed an“island”-“island”network that was conducive to heat transfer.When the content reached 20%,the effect of dissipation was reduced due to significant agglomeration.In addition,the dissipating coating has good mechanical property and good application value.

关 键 词：石墨烯微片 水性涂料 散热涂料 

分 类 号：TQ63[化学工程—精细化工]