海运集装箱用耐高温防盐雾新型涂料制备及性能研究  

Research on the preparation and performance of new high-temperature and anti-salt spray coatings for shipping containers

作　　者：赵遐梅 刘淑萍[1] 钱宇[1] ZHAO Xiamei;LIU Shuping;QIAN Yu(Department of Economic Management,Shanghai Communications Polytechnic,Shanghai 200431,China)

机构地区：[1]上海交通职业技术学院,上海200431

出　　处：《粘接》2024年第11期113-116,共4页Adhesion

摘　　要：针对传统防腐涂料无法满足海洋环境下耐高温防腐防护要求,提出一种新型磷酸盐涂料的制备。对涂料配比进行优化,并对涂料的耐高温盐雾腐蚀性能进行研究。试验结果表明,磷酸盐涂料内铝粉填料质量分数为35%时,涂层微观结构致密完整,电化学开路电位稳定在-0.70 V附近,经过氯化钠溶液浸泡20 d后,腐蚀电位维持在较正的位置,表现出良好的阻隔作用与防腐效果。磷酸盐涂层与基体附着力达到了0级,在高温和盐雾条件下放置1000 h后,涂层状态仍旧保持良好,不出现开裂脱落现象,划痕位置的腐蚀不向两侧扩散,表现出良好的长期耐高温盐雾性能,满足高温海洋腐蚀环境中长期服役要求。In view of the fact that traditional anticorrosive coatings cannot meet the requirements of high-temperature anticorrosive protection in marine environments,a new type of phosphate coating was proposed.The coating ratio was optimized,and the corrosion resistance of the coating at high temperature and salt spray was studied.The experimental results showed that when the mass fraction of aluminum powder filler in the phosphate coating was 35%,the microstructure of the coating was dense and complete,and the electrochemical open circuit potential was stable around-0.70 V.After soaking in a 3.5%sodium chloride solution for 20 days,the corrosion potential remained at a positive position,demonstrating good barrier effect and anti-corrosion effect.The adhesion between the phosphate coating and the substrate had reached level 0.After being placed under high temperature and salt spray conditions for 1000 hours,the coating remained in good condition without cracking or detachment.The corrosion at the scratch position did not spread to both sides,demonstrating good long-term high-temperature salt spray resistance.It can meet the requirements for long-term service in high-temperature marine corrosive environments.

关 键 词：耐高温涂料 耐盐雾涂料 海洋防腐涂料 海运集装箱 

分 类 号：TQ635.2[化学工程—精细化工]