摘要
为了研究不同常压下交变压力对环氧防锈漆防腐性能的影响,文中通过模拟深海环境中海水压力变化,采用测定涂层吸水率、附着力、微观形貌以及差示扫描量热(DSC)、热重分析(TG)研究了常压3.5MPa、常压6.3MPa2种交变压力影响下的环氧防锈涂料的防腐蚀失效行为.研究结果表明,交变压力增大,导致氯化钠溶液扩散进入涂层内部,涂层附着力变差,吸水率增加,交变压力对环氧防锈涂层的玻璃化转变温度影响显著,交变压力恶化了涂层的防护性能.
To study the influence of alternate pressure on the anticorrosion performance of epoxy coatings in different ordinary pressure conditions by simulating the pressured state in the deep sea,the failure and corrosion performances of epoxy coatings under alternate pressures were studied.These studies were carried out between ordinary pressure and 3.5 MPa as well as the alternate pressure between ordinary pressure and 6.5 MPa using the testing methods of water absorptions of coatings,adhesion testing,scanning of an electron microscope,and DSC and TG testing.The results show that higher alternate pressure promotes diffusion of the NaCl solution into the coating,leading to decreased adhesion of coating.Water absorption of coating is increased.The transition temperature of epoxy coatings vitrifying under alternate pressures were great affected,accelerating the failure of the coatings.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2012年第1期26-29,61,共5页
Journal of Harbin Engineering University
基金
国家自然科学基金资助项目(50779002)
关键词
环氧腐蚀
环氧涂料
失效
海水环境
交变压力
anti-corrosion performance
epoxy coating
failure behavior
sea water enviroment
alternate pressures
