基于复合层状结构的改性石墨烯防/除冰电热涂层  

Modified Graphene De-icing Coating Based on Composite Layered Structure

作　　者：李贤明 谭文胜 曾子竞 何葵东 罗立军 罗红祥 LI Xian-ming;TAN Wen-sheng;ZENG Zi-jing;HE Kui-dong;LUO Li-jun;LUO Hong-xiang(Wuling Power Corporation Limited,Changsha 410004,China;College of Energy and Power Engineering,Changsha University of Science&Technology,Changsha 410114,China)

机构地区：[1]五凌电力有限公司,长沙410004 [2]长沙理工大学能源与动力工程学院,长沙410114

出　　处：《科学技术与工程》2024年第31期13391-13399,共9页Science Technology and Engineering

基　　金：长沙市高价值专利组合项目(GJZCY001)。

摘　　要：风机叶片覆冰是影响风电机组安全运行的重要因素之一,叶片防/除冰成为亟待解决的问题。利用苯胺提高石墨烯在聚偏氟乙烯(polyvinylidene fluoride,PVDF)基体中的分散度,通过旋涂法制备层状结构的改性石墨烯(graphene emeraldiline benzene,GEB)/聚偏氟乙烯复合电热涂层,针对涂层的机械性能、电热性能和除冰性能展开研究。实验结果显示,在相同GEB含量下,相比刷涂法,旋涂法制备的样品拉伸强度提高38.3%,最大应变值提高118.8%;在20 V加载电压下,旋涂法样品升温极值较刷涂法提高了8.62℃;在多倾角环境下旋涂法样品的除冰时间比刷涂法样品减少了20 s左右。结果表明旋涂法构造的层状堆叠结构能够增强涂层拉伸强度和柔韧性,在提高涂层机械性能同时具备良好的电热性能和除冰性能,为电热涂层除冰提供了一种新的思路。Icing of wind turbine blades is one of the important factors affecting the safe operation of wind turbines,and the anti-icing of blades has become a hot issue that needs to be solved urgently.Aniline was used to improve the dispersion of graphene in polyvinylidene fluoride(PVDF)matrix,and the layered graphene emeraldiline benzene(GEB)/polyvinylidene fluoride composite electrothermal coating was prepared by spin coating,and the mechanical properties,electrothermal properties and de-icing properties of the composite coating were experimented.The results show that under the same GEB content,the tensile strength and maximum strain value of the sample prepared by the spin coating method are increased by 38.3%and 118.8%compared with the brush coating method.Under the loading voltage of 20 V,the extreme value of the heating of the spin coating method was increased by 8.62℃compared with that of the brush coating method,and the de-icing time of the spin coating sample was reduced by about 20 seconds compared with that of the brush coating sample in the multi-inclination environment.It can be seen that the layered stacking structure constructed by the spin coating method can enhance the tensile strength and flexibility of the coating,and has good electrothermal and de-icing properties while improving the mechanical properties of the coating,which provides a new idea for the de-icing of electrothermal coatings.

关 键 词：层状结构 石墨烯 电热除冰 旋涂 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程] TB383[一般工业技术—材料科学与工程]