一种长效型低成本钢结构水性防锈漆的研制  

Development of a Long-Term and Low-Cost Water-borne Anti-Rust Paint for Steel Structures

作　　者：徐金枝 陈济通 陈辉 Xu Jinzhi;Chen Jitong;Chen Hui(Shanghai Zhongnan Building Materials Co.,Ltd.,Shanghai 200030,China)

机构地区：[1]上海中南建筑材料有限公司,上海200030

出　　处：《上海涂料》2025年第1期27-31,共5页Shanghai Coatings

摘　　要：采用水性丙烯酸乳液为主要成膜物质,以磷酸锌、磷酸铝锌、三聚磷酸铝、云母氧化铁灰、云母氧化铁红为防锈颜料,以金红石型二氧化钛、氧化铁红粉、炭黑为颜料,以天然硫酸钡和云母粉为填料制备防锈漆,然后对其各项性能进行研究。结果表明,当采用2.5%~5.0%的磷酸锌为防锈颜料,以DPM和DPnB为成膜助剂,以聚氨酯缔合型增稠剂为主,以膨润土增稠剂为辅,以丙烯酸铵盐为分散剂,颜基比设计为1.0~1.2时,制备的防锈漆体系稳定、性能优异。将其涂覆于冷轧钢板上制成厚度为100μm的干膜后,漆膜耐水性和耐盐水性较好,耐盐雾性可达300h以上。A water-borne anti-rust paint was made through using waterborne acrylic emulsion as the main film forming material,using zinc phosphate,aluminum phosphate,aluminum triphosphate,mica iron oxide ash and mica iron oxide red as anti-rust pigments,using rutile titanium dioxide,iron oxide red powder and carbon black as pigments,using natural barium sulfate and mica powder as fillers.The results showed that the anti-rust paint demonstrated excellent stability and superior performance when 2.5%-5.0% zinc phosphate was used as anti-rust pigment,DPM and DPnB were used as film-forming additives,polyurethane associative thickener was primarily used,supplemented with bentonite thickener,ammonium acrylate was used as the dispersant,and the ratio of pigment-tobinder was 1.0-1.2.When applied to a cold-rolled steel sheet to form a 100μm dry film,the coating exhibited good water resistance and salt water resistance,along with the neutral salt spray resistance of more than 300 h ours.

关 键 词：钢结构用水性防锈漆 水性丙烯酸乳液 防锈颜料 

分 类 号：TQ331.47[化学工程—橡胶工业]