机械和超声波分散对纳米Al_(2)O_(3)颗粒在聚酯树脂中的分散及涂层性能的影响  

Effects of Mechanical and Ultrasonic Method on Dispersion and Coating Properties of Nano Al_(2)O_(3)/Polyester Resin

作　　者：苗乃明[1] 蒋雨生 张澳 黄佳琪 吴王平[1] 宋新隆 刘坤明 Miao Naiming;Jiang Yusheng;Zhang Ao;Huang Jiaqi;Wu Wangping;Song Xinlong;Liu Kunming(School of Mechanical Engineering and Rail Transit,Changzhou University,Changzhou,Jiangsu 213164,China;Jiangsu Kexiang Anticorrosion Materials Co.,Ltd.,Changzhou,Jiangsu 213251,China)

机构地区：[1]常州大学机械与轨道交通学院,江苏常州213164 [2]江苏科祥防腐材料有限公司,江苏常州213251

出　　处：《涂料工业》2023年第8期47-54,共8页Paint & Coatings Industry

摘　　要：将纳米Al_(2)O_(3)颗粒分别通过机械和超声波分散工艺分散到聚酯树脂中,研究了机械分散转速和分散方式对纳米Al_(2)O_(3)/聚酯树脂复合涂层性能及纳米Al_(2)O_(3)在聚酯树脂中的分散性的影响;通过研究复合涂层的耐盐雾性、硬度、耐磨性等,确定了最佳分散工艺。结果表明:纳米Al_(2)O_(3)颗粒可在1500 r/min的机械分散下形成均匀分散体系,再用超声波分散可进一步提升分散效果和涂料的稳定性,有效减少纳米Al_(2)O_(3)在水性聚酯树脂中的团聚,在提高所得复合涂层硬度、耐磨性的同时,增强其耐腐蚀性。In this paper,nano-Al_(2)O_(3) particles were dispersed into polyester resin by mechanical dispersion and ultrasonic dispersion processes to enhance the mechanical properties of water-based polyester resin.The effects of mechanical dispersion speed and dispersion mode on the performance of nano-Al_(2)O_(3)/polyester resin composite coating and the dispersion of nano-Al_(2)O_(3) in polyester resin were investigated.The best dispersion process was determined by studying the properties of the composite coating such as salt spray,sand washing resistance,hardness and wear resistance.The results showed that the nano-Al_(2)O_(3) particles could form a homogeneous dispersion system under mechanical dispersion at 1500 r/min,and the dispersion effect and stability of the coating would be further improved by ultrasonic dispersion,which could effectively reduce the agglomeration of nano-Al_(2)O_(3) in water-based polyester resin and enhance the corrosion resistance of the composite coating while improving its hardness and wear resistance.

关 键 词：纳米Al_(2)O_(3) 机械分散 超声分散 聚酯复合涂层 防腐性能 

分 类 号：TQ637.81[化学工程—精细化工]