摘要
针对铁路扣件在沿海区域遭受冲蚀和海洋腐蚀难题,本文研制一种新型防腐抗冲蚀复合涂层。采用石墨烯锌防腐底漆和抗冲蚀弹性聚氨酯面漆,通过盐雾实验、电化学测试和涂层硬度测试评价复合涂层的综合防护性能。结果表明,制备的复合涂层抗冲蚀性能较好,在3.5%(质量分数) NaCl溶液中浸泡28 d后涂层电阻仍达到18.9 MΩ·cm^2,复合涂层耐盐雾性能超过1500 h。
In view of the erosion and marine corrosion problem of railway fasteners in coastal areas,a new type of anti-corrosion and anti-erosion composite coating was developed. The comprehensive protective performance of the composite coating was evaluated by salt spray test, electrochemical test and coating hardness test. Results indicated that the composite coating had better erosion resistance. The coating resistance still reached 18.9 Ω·cm^2 after immersed in 3.5%(mass fraction) NaCl solution for 28 d.Composite coating was resistant to salt spray for more than 1500 h.
作者
孙立三
王春婷
卢光明
郑文茹
刘栓
蒲吉斌
王立平
SUN Lisan;WANG Chunting;LU Guangming;ZHENG Wenru;LIU Shuan;PU Jibin;WANG Liping(Key Laboratory of Marine Materials and Related Technologies of CAS, Zhejiang Key Laboratory of MarineMaterials and Protective Technologies, Ningbo Institute of Materials Technologies and Engineering,Chinese Academy of Sciences, Ningbo 315201, China)
出处
《腐蚀科学与防护技术》
CAS
CSCD
北大核心
2019年第4期424-428,共5页
Corrosion Science and Protection Technology
基金
国家自然科学基金(41506098)
中国科学院海洋新材料与应用技术重点实验开放基金(2018K04)
青岛海洋科学与技术国家实验室开放基金(QNLM2016ORP0409)~~
关键词
抗冲蚀
海洋腐蚀
石墨烯
电化学阻抗
erosion resistance
marine corrosion
graphene
electrochemical impedance
