RTV喷涂时涂料雾化效果对其憎水性的实验分析  

The Experiment Analysis of How RTV Coating Atomization Influence on Its Hydrophobicity During Spraying

作　　者：叶志健[1] 雷乾[1] 吴奇珂[1] 邓诗雨[1] 李恒真 刘刚[1] 

机构地区：[1]华南理工大学电力学院,广州510640 [2]佛山市供电局,广东佛山528000

出　　处：《电瓷避雷器》2014年第1期1-5,共5页Insulators and Surge Arresters

基　　金：国家大学生创新性试验计划项目(编号:201210561091);广东省大学生创新实验项目(编号:1056112088)

摘　　要：为研究防污闪涂料施工过程中涂料雾化效果对涂层憎水性的影响,以RTV(Room Temperature Vulcanized Silicone Rubber)涂料为例,采用控制变量法,通过喷涂试验研究喷涂时喷枪的出气量,即涂料的雾化程度对涂料憎水性的影响。用静态接触角法,测量样品表面体积为10-15水珠的静态憎水角,表征涂层的憎水性能。研究发现,在一定雾化范围内,喷涂时喷枪出气量越大,即涂料雾化程度越高,涂层的憎水性越差。建议在实际喷涂作业时,应合理调节喷枪出气量,使涂料处于较低雾化程度下进行喷涂。To study the effect of atomization of spraying anti-flashover paint during spraying on hydrophobicity of its coatings, RTV （room temperature vulcanized silicone rubber） is taken as an example, using controlling variables method, through spraying experiment,to research the relation between the amount of spray gun＇s air output when spraying, and the hydrophobicity of RTV coatings. The amount of spray gun＇s gas output while spraying can be used to describe the atomization. Static contact angle method was utilized to measure the static contact angle of the 7-15 lxL -volume water drops on the coatings to describe the hydrophobicity of different spraying coatings. The research found that in a certain range, the more gas output, the better atomization of paint is while spraying, the worse the hydrophobicity of coatings. It is suggested that low amount of gas output, promptly atomization of paints in a low degree should be guaranteed in the practical spraying projects.

关 键 词：RTV 雾化程度 憎水性 静态接触角 

分 类 号：TM216[一般工业技术—材料科学与工程]