水性丙烯酸聚氨酯涂料成膜助剂的筛选  

Selection of film-forming additives for waterborne acrylic polyurethane paint

作　　者：侯海涛 张亚彬[1] 李运德 HOU Haitao;ZHANG Yabin;LI Yunde(Tianjin University of Technology,Tianjin 300380,China;Tianjin Beacon Paint&Coatings Industrial Development Co.,Ltd.,Tianjin 300400,China)

机构地区：[1]天津工业大学,天津300380 [2]天津灯塔涂料工业发展有限公司,天津300400

出　　处：《电镀与涂饰》2023年第12期51-56,共6页Electroplating & Finishing

摘　　要：将醇酯十二(C-12)、二乙二醇丁醚(DB)、二丙二醇甲醚(DPM)、乙二醇单丁醚(BCS)、丙二醇甲醚乙酸酯(PMA)和丙二醇单甲醚(PM)分别作为成膜助剂添加到羟基丙烯酸分散体中,再制成水性丙烯酸聚氨酯漆,通过分析不同成膜助剂的作用,对涂料的贮存稳定性、施工性能及漆膜的干燥速率、光泽等指标的综合判断,筛选出PMA为该涂料体系的最佳成膜助剂。用PMA配制的涂料漆膜表干时间为55 min,漆膜光泽达到91.1,柔韧性、铅笔硬度等力学性能均表现优秀。Six water-based film-forming additives i.e.2,2,4-trimethyl-1,3-pentanediolmonoisobutyrate(C-12),diethylene glycol butyl ether(DB),dipropylene glycol monomethyl ether(DPM),ethylene glycol monobutyl ether(BCS),propylene glycol methyl ether acetate(PMA),and propylene glycol monomethyl ether(PM)were added respectively to a hydroxyacrylic dispersion,and then used to make a waterborne acrylic polyurethane paint.The effects of different film-forming additives on the storage stability,drying rate,glossiness,and construction performance of the paints were studied.PMA was selected as the best film-forming additive for the binder system.The film of the paint prepared with PMA had a tack-free time of 55 min,a glossiness of 91.1,and good flexibility,hardness,and other mechanical properties.

关 键 词：水性丙烯酸聚氨酯涂料 羟基丙烯酸分散体 成膜助剂 干燥 贮存稳定性 

分 类 号：TQ630.44[化学工程—精细化工]