纳米氧化铝修饰及其增强水性丙烯酸涂料物理性能的研究  

Study on Modification of Nano Alumina and Its Enhancement of Physical Properties of Water-Based Acrylic Coatings

作　　者：李明华[1,2] 高杰 蒋东明 俞书军 杜志强 LI Minghua;GAO Jie;JIANG Dongming;YU Shujun;DU Zhiqiang(Anhui Provincial Engineering Research Center for Green Coatings High-Performance Additives,School of Energy Materials and Chemical Engineering,Hefei University,Hefei 230601,China;Hefei Aigo Additives Technology Co.,Ltd.,Hefei 230601,China)

机构地区：[1]合肥学院能源材料与化工学院安徽省绿色涂料高性能助剂工程研究中心,安徽合肥230601 [2]合肥爱高助剂科技有限公司,安徽合肥230601

出　　处：《材料保护》2023年第11期88-93,共6页Materials Protection

基　　金：安徽省科技厅自然科学基金项目(1808085ME144)资助。

摘　　要：为了增强水性丙烯酸树脂涂料的物理性能,在超声波作用下,通过调控抗沉型分散剂的质量分数,成功制备出一种绿色改性的水性纳米氧化铝分散体,对水性纳米氧化铝分散体进行了表征,并对分散体复合市售水性丙烯酸树脂涂料进行了物理性能测试。结果表明:在分散剂质量分数为0.50%,超声波分散时间为0.5 h的条件下,制备的水性纳米氧化铝分散体的储存稳定时间大于90 d;在市售水性丙烯酸树脂涂料中添加质量分数为4%的水性纳米氧化铝分散体后,涂层的耐磨转数从小于5 r增大到15 r以上,抗刮载荷从1.10 kg增大到2.00 kg。For enhancing the physical properties of water-based acrylic resin coating,a green modified water-based nano-alumina dispersion was successfully prepared by regulating mass fraction of anti-sedimentation dispersant under the condition of ultrasonication.Subsequently,the water-based nano alumina dispersion was characterized,and the physical properties of commercial water-based acrylic resin composite coating mixed with the dispersion were tested.Results showed that under the conditions of a dispersant mass fraction of 0.50%and an ultrasonic disper-sion time of 0.5 h,the storage stability time of the prepared water-based nano-alumina dispersion was greater than 90 d.Besides,after adding 4%(mass fraction)water-based nano-alumina dispersion to commercially available water-based acrylic resin coatings,the wear-resistant rota-tion number of the as-obtained coating increased from less than 5 r to more than 15 r,and the scratch resistance load increased from 1.10 kg to 2.00 kg.

关 键 词：分散剂 水性纳米氧化铝分散体 水性丙烯酸树脂涂料 物理性能 

分 类 号：TQ630.67[化学工程—精细化工]