TAN Zhengliang,YU Huicheng*,SHI Zhanwang,et al.Influence of Zinc Rosinate Addition on the Anticorrosive Properties of Alkyd Resin Enamel Paints[J].Plating & Finishing,2022,(6):31-36.[doi:10.3969/j.issn.1001-3849.2022.06.007]
松香酸锌对醇酸树脂磁漆的防腐蚀性能影响研究
- Title:
- Influence of Zinc Rosinate Addition on the Anticorrosive Properties of Alkyd Resin Enamel Paints
- Keywords:
- enamel paint; ??inc rosinate; ??lectrochemical test; ??alt spray fog test; ??orrosion resistance
- 分类号:
- TQ631
- 文献标志码:
- A
- 摘要:
- 以干性长油度醇酸树脂为成膜物质,松香酸锌为缓蚀剂并加入其他助剂制备了松香基醇酸树脂防腐磁漆。利用 Tafel 极化曲线、电化学交流阻抗及盐雾试验测试了涂料的防腐性能。结果表明:添加了缓蚀剂松香酸锌的醇 酸树脂涂层具有更好的防腐蚀性能。松香酸锌的添加量为 0.25 % 时的涂层防腐性能最佳,腐蚀电流密度由 39.6 uA?span>· cm -2 下降到 1.9 uA?span>· cm -2 ,阻抗值可从 1.2 k Ω?span>· cm 2 提升到 7.0 k Ω?span>· cm 2 ;盐雾试验分析、附着力测试及硬度测试表明添加松香酸锌为 0.25 % 时的涂层具有更好的防腐性能、更强的附着及更高的硬度,可以显著提高醇酸树脂防腐磁漆的性能。
- Abstract:
- : A rosin-based alkyd resin anticorrosive enamel paint was prepared using the drying long oil alkyd resin as the film-forming substance , zinc rosinate as corrosion inhibitor and other additives. The anticorrosive properties of enamel paints were analyzed by Tafel curve , AC impedance technique and salt spray fog test. The results showed that the enamel paints had the better corrosion resistance after addition of zinc rosinate. The anticorrosive properties of coatings were the best when 0.25 % of zinc rosinate was added into the formula of enamel paints. The corrosion current of anti-corrosive coatings decreased from 39.6 uA?span>· cm -2 to 1.9 uA· cm -2 , and the impedance value increased from about 1.2 k Ω ·cm 2 to 7.0 k Ω ·cm 2 . The salt spray test analysis , adhesion test and hardness test also showed that the enamel paints had better anti-corrosion properties , better adhesion and higher hardness when 0.25 % of zinc rosinate was added into the formula , and the properties of alkyd resin enamel paints can be significantly improved.
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备注/Memo
收稿日期: 2021-01-16 修回日期: 2021-03-22 作者简介: 谭政亮( 1997 —),男,硕士研究生, email : 19961121@qq.com 通信作者: 余会成( 1968 —),男,博士,副教授,主要从事高分子防腐涂层研究, email : doyhc@126.com ; 雷福厚( 1965 —),男,博士,教授,主要从事天然产物的开发与应用研究, email : leifuhou@163.com 基金项目: 广西重点研发计划(桂科 AB18281024 );广西自然科学基金项目( 2018GXNSFAA294086 )