锆离子交联剂固化水性环氧树脂涂层防腐性能的研究
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摘要
水性环氧树脂是重要的防腐材料,新型水性交联剂是解决水性防腐涂料耐腐蚀性低的重要途径,选择具有一定钝化性能的锆离子作为水性环氧树脂交联剂,在利用其钝化性的同时还可改变膜的致密性。研究结果发现,锆离子螯合后可以极大地改善金属的防腐性能,添加锆离子交联剂可以明显提高涂层的阻抗值,且最佳的添加质量分数为5%。
Water-borne epoxy resin is an important anticorrosive material.New water-borne crosslinking agent is an important way to solve the problem of low corrosion resistance of water-borne anticorrosive coatings. Zirconium ion with certain passivation property is selected as a crosslinking agent for water-borne epoxy resin,while using its passivation property,the densification of film can be changed by crosslinking ability of metal ions.Study results show that zirconium ion after chelated can improve greatly the corrosion resistance of metals. Adding zirconium ion crosslinking agent can obviously improve the impedance value of the coating and the optimum content of zirconium ion crosslinking agent is 5%.
Water-borne epoxy resin is an important anticorrosive material.New water-borne crosslinking agent is an important way to solve the problem of low corrosion resistance of water-borne anticorrosive coatings. Zirconium ion with certain passivation property is selected as a crosslinking agent for water-borne epoxy resin,while using its passivation property,the densification of film can be changed by crosslinking ability of metal ions.Study results show that zirconium ion after chelated can improve greatly the corrosion resistance of metals. Adding zirconium ion crosslinking agent can obviously improve the impedance value of the coating and the optimum content of zirconium ion crosslinking agent is 5%.
引文
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[2]Zuo Yinze,Chen Liang,Shi Xingling,et al. Study on corrosion resistance of epoxy ester coating cross-linked by a new type of titanium ion curing agent[J]. Progress in Organic Coatings,2018,115,86-93.
[3]Yang L,Xie Z,Li Z.Studies on acrylate copolymer soap-free waterborne coatings crosslinked by metal ions[J].Journal of Applied Polymer Science,2015,74(1):91-96.
[4]Raj M M,Patel H V,Patel N V,et al.High performance water borne coatings from epoxy resin and novel acrylamide based curing agents[J].Archives of Applied Science Research,2014,6:35-46.