欢迎登录材料期刊网

材料期刊网

高级检索

论述了导致防腐蚀涂层失效的影响因素和微观机制, 侧重于水体环境下涂层的失效过程.回顾近十年关于涂层起泡、湿附着力和腐蚀性离子在涂 层中的传输行为3方面所取得的进展和尚未解决的问题,提出了解决方法.

In this paper, the influencing factors and mechanism s of the degradation of anti-corrosion coatings were discussed with spe cial attention to water containing environments. Progress and unsolved problems in the last decade ,which were concerned with three aspects: blistering, wet a dhesion,permeation behavior of corrosive ions through coatings,were reviewed. Bl istering was cons idered as the indication of the degradation of coatings, which could be induced by volume expansion, gas inclusion, osmosis and electro-osmosis. Among them, the osmosis mechanism is more popular. However, some details about the diffusion of cations towards catholic area need to be revealed. Wet adhesion is the adhesion of coatings in the presence of water, which is regarded as the decisive factor of the degradation of coatings. There are five theories about adhesion, but whic h one is more important for anti-corrosion coatings is still a question. The per meation process of corrosive ions diffusing through coatings is still unclear, b ut the importance of this problem is obvious. Finally, the methods to solve thes e problems were proposed.

参考文献

[1]
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%