纳米SiO2-稀土元素复合改性环氧树脂防腐蚀涂料的耐蚀性
Corrosion Resistance of Anticorrosive Coatings of Epoxy Resin Modified by Nano SiO2-rare Elements
摘 要
通过在溶胶凝胶过程中原位添加硝酸钬、硝酸铒、硝酸钐稀土金属, 制备改性纳米SiO2, 并将其添加到环氧树脂中得到一种纳米SiO2-稀土金属复合改性环氧树脂涂料。用红外光谱仪对改性前后的纳米粒子进行了结构表征; 采用电化学方法测试了复合改性环氧树脂涂层在3.5% NaCl溶液中的耐蚀性。结果表明,添加纳米SiO2-硝酸铒复合改性环氧树脂涂料的防腐蚀性能最佳。
稀土金属
环氧树脂
电化学阻抗谱
nano silica
rare metal
epoxy resin
electrochemical impedance spectroscopy
Abstract
Modified nano SiO2 was prepared with situ adding rare metals of holmium nitrate, bait nitrate, samarium nitrate in the sol-gel procession. The synthesized products were dispersed in epoxy resin. The structure of the products were characterized by infrared spectrometer. The electrochemical impedance spectroscopy of modified epoxy resin composite coatings was tested in 3.5% NaCl solution. The results showed that the anticorrosion performance of the composite coating with adding nanometer SiO2-bait nitrate was the best.
中图分类号 TG174.4 DOI 10.11973/fsyfh-201508010
所属栏目 试验研究
基金项目 山东省自然科学基金(ZR2014EMQ007); 滨州市科技发展计划项目(2013ZC0702); 滨州学院科研基金项目(BZXYG1315; BZXYSYXM201309)
收稿日期 2015/1/13
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联系人作者刘元伟(hbgfz@163.com)
备注刘元伟(1979-), 讲师, 硕士, 从事材料腐蚀与防护研究,
引用该论文: LIU Yuan-wei. Corrosion Resistance of Anticorrosive Coatings of Epoxy Resin Modified by Nano SiO2-rare Elements[J]. Corrosion & Protection, 2015, 36(8): 738
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参考文献
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【3】宋加金,刘长维,陈红军. 耐腐蚀环氧粉末涂料的改性研究[J]. 热固性树脂,2007(7): 24-26.
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【6】ZHOU S Z,WU L M,SUN J,et al. The change of the proper-ties of acrylic-based polyurethane via addition of nano-silica[J]. Pro-gress in Organic Coatings,2002,45: 33-42.
【7】顾元松,陈莉,陈苏. 纳米二氧化硅复合材料的研究进展[J]. 南京工业大学报,2003,25(4): 107-110.
【8】李红玲,刘清玲. 稀土在金属防腐蚀方面的应用及研究进展[J]. 材料保护,2013,46(9): 48-50.
【9】ABDEL S H,DARRYL P B. Corrosion mitigation of rare-earth metals containing magnesium EV31A-T6 alloy via chrome-free conversion coating treatment[J]. Electrochimica Acta,2013,108(1): 852-859.
【10】杨文忠,田丰. 稀土金属缓蚀剂的研究进展[J]. 工业用水与废水,2010,41(5): 1-5.
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【12】HUGHES A E,HARVEY T G,BIRBILIS N,et al. 7-coatings for corrosion prevention based on rare earths[J]. Rare Earth-based Corrosion Inhibitors,2014: 186-232.
【13】张鉴清,曹楚南. 电化学阻抗谱方法研究评价有机涂层[J]. 腐蚀与防护,1998,19(3): 99-104.
【14】ZHANG X L,ZHANG S L,LEI Y. Corrosion resistance of in-situ phosphatizing organic coating modified with rare earth oxide nanoparticles[J]. Metal Finishing,2012,110(7): 24-28.
【15】高杰维,张鲲,徐磊,等. 7A04-T6铝合金在氯化钠溶液中的腐蚀行为及其对拉伸性能的影响[J]. 腐蚀与防护,2014,35(3): 239-247.
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