Preparation and Discussion of a Waterborne Acrylic Modified Alkyd Steel Structure Coatings
Waterborne acrylic modified alkyd steel structure coatings were prepared by using waterborne acrylic modified alkyd resin mixed with waterborne acrylic latex as the film-forming material,through screening pigments,fillers,antirust materials and their addition ratios.The results show that the coatings have excellent initial resistance to rain and salt water and can last 168 hours without any blistering or peeling of the coatings.The hardness increases fast,and it can reach 2B after 1 day of self-drying and HB after 7 days of self-drying.The rust prevention effect is good.After curing at room temperature for 7 days,salt spray resistance can last for 72 hours,and can also reach more than 120 hours after baking.The excellent adhesion is up to level 1～0,the impact resistance can also reach 50 kg·cm without film cracks.The coatings'cost is low,meeting market demand.
万方数据
维普
