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铝合金表面ZSM-5型分子筛涂层耐蚀性研究
刘欣1, 李鉴洋2, 曾宇翔3, 刘旭光1, 张盾3, 张杰3
0
(1.青岛科技大学, 山东青岛 266042;2.中国科学院金属研究所, 辽宁沈阳 110016;3.中国科学院海洋研究所, 海洋环境腐蚀与生物污损重点实验室, 山东青岛 266071)
摘要:
[目的]探究分子筛作为填料添加到水性涂料中对涂层防腐性能的影响。[方法]利用光学显微镜、XRD及SEM对涂层的中分子筛填料分散效果和涂层微观形貌进行表征,利用极化曲线分析分子筛水性涂层的电化学性能。[结果]分子筛粉末在水性漆中的最大添加比例为15%,超过此比例会出现大块团聚现象。其中10%的分子筛粉末对涂料耐蚀性提升最大。[结论]分子筛良好的高温水热稳定性有助于提高涂料的耐蚀性,但由于水性树脂不能够将分子筛颗粒紧密粘结,其添加量过大时会导致涂层耐蚀性能下降。
关键词:  ZSM-5分子筛  水性涂料  防腐
DOI:10.13657/j.cnki.gxkxyxb.20181204.006
投稿时间:2018-01-10
基金项目:国家海洋局公益性项目(201405013-4)和中国科学院海洋研究所海洋环境腐蚀与生物污损重点实验室项目(MCKF201407)资助。
Title Research of Corrosion Resistance of ZSM-5 Zeolite Membrane on the Surface of Aluminum Alloy
LIU Xin1, LI Jianyang2, ZENG Yuxiang3, LIU Xuguang1, ZHANG Dun3, ZHANG Jie3
(1.Qingdao University of Science and Technology, Qingdao, Shandong, 266042, China;2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, 110016, China;3.Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, Shandong, 266071, China)
Abstract:
[Objective] In order to explore the effect of zeolite as filler on the corrosion resistance performance of waterborne coatings.[Methods] The dispersion effect of zeolite filler and micromorphology of coatings were characterized by optical microscopy, XRD and SEM. The electrochemical properties of waterborne coatings were analyzed by polarization curves.[Results] It was found that the maximum addition ratio of zeolite powder to waterborne coatings was 15%.The bulk agglomeration phenomenon appeared beyond this proportion. Among them, 10% of the zeolite powder had the greatest improvement in the corrosion resistance of coatings.[Conclusion] The good high temperature hydrothermal stability of the zeolite helps to improve the corrosion resistance of the coating. However, if the addition amount is too large, the waterborne resin cannot bind the zeolite particles tightly, resulting in a decrease in the corrosion resistance of the coating.
Key words:  ZSM-5 zeolite  waterborne  corrosion protection

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