紫外线光强对摩托车塑料件涂层性能的影响  

Effect of ultraviolet light intensity during curing on properties of varnish for plastic parts of motorcycle

作　　者：苗蓬勃[1] 王岳权 MIAO Pengbo;WANG Yuequan(Hangzhou Vocational&Technical College,Hangzhou 310000,China;ZHEJIANG CFMOTO-KTMR2R Motorcycles Co.,Ltd.,Hangzhou 310000,China)

机构地区：[1]杭州职业技术学院,浙江杭州310000 [2]浙江春风凯特摩机车有限公司,浙江杭州310000

出　　处：《电镀与涂饰》2024年第10期126-132,共7页Electroplating & Finishing

基　　金：浙江省教育厅访问工程师校企合作项目(FG2023048)。

摘　　要：[目的]在摩托车塑料件的涂装工艺中,紫外光(UV)光固化是表层UV清漆固化的关键环节。本文研究了UV灯光强参数的变化对摩托车塑料件表面涂层性能的影响。[方法]采用摩托车常用的尼龙+玻纤塑料件为基材,喷涂后经不同强度的UV光照射固化,测试了漆膜的附着力、硬度、光泽度和耐冲击性,采用能谱仪分析了漆膜表面的元素成分。[结果]高光强UV固化后漆膜的附着力、光泽度和耐冲击性更佳,表面氧元素占比更少,硬度与低光强UV固化时差异不大。[结论]与低光强UV固化相比,高光强UV灯照射下氧阻聚作用更少,漆膜的表面性能更优异。[Introduction]In the coating process of plastic parts for motorcycles,ultraviolet(UV)curing is the key procedure for curing UV varnish onto the plastic surfaces.In this paper,the effect of UV light intensity on the surface properties of coatings sprayed onto motorcycle plastic parts was studied.[Method]The commonly used nylon-glass fiber plastic motorcycle parts were sprayed and then irradiated by UV light of different intensities.The adhesion strength,hardness,glossiness,and impact resistance of the coatings were tested.The contents of elements on the surfaces of coatings were analyzed by energy-dispersive spectroscopy.[Result]The coatings cured by irradiation with high light intensity had better adhesion strength,glossiness,and impact resistance,less oxygen content on their surfaces,and little difference in hardness as compared with that cured at low light intensity.[Conclusion]As compared with the UV curing process at low light intensity,the oxygen inhibition effect in free-radical polymerization is less and the surface properties of the coatings are better for the curing process at high light intensity.

关 键 词：摩托车塑料件 涂装 紫外光固化 光强 附着力 硬度 氧阻聚 

分 类 号：TQ639[化学工程—精细化工] U483[交通运输工程—载运工具运用工程]