水性聚氨酯防污涂料的研究

Study on Waterborne Polyurethane Antifouling Coatings

采用丙烯酸/苯乙烯共聚物乳液为基体树脂,通过添加聚氨酯分散体提高了涂膜的耐磨性、柔韧性、抗开裂性,筛选不同防污剂和助剂等,制备了养殖渔网防污损的水性防污涂料,对涂层的防污性、附着力等性能进行了评价,并对涂层进行微观表征和毒性测试,制备的水性防污涂料具有6个月的防污期效,满足水产养殖业对渔网防污涂料的要求,同时由于是水性的,对海洋环境无污染,在生产和使用过程中对大气环境和人员身体无影响,符合环保要求。

The waterborne antifouling coatings was prepared for ifshnet anti-fouling by using acrylic/styrene copolymer emulsion as the basic resin, adding polyurethane dispersions to improve wear resistance, lfexibility and crack resistance of the coatings and selecting different anti-fouling agents and additives. The antifouling property, adhesion and other properties were evaluated for the coating iflms and the micro-characterization and toxicity test were carried out as well. The prepared anti-fouling coatings had the effective anti-fouling period of 6 months, which met the requirements of the cultivating ifshery for ifshnet anti-fouling coatings. Meanwhile, as the coatings were waterborne and had no pollution to marine environment, it had no effect on the air environment and human bodies during the processes of its production and application and met the requirement of environmental protection.