• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Urea formaldehyde (UF) microcapsules loaded with corrosion inhibitor for enhancing the anti-corrosive properties of acrylic-based multifunctional PU coatings
【24h】

Urea formaldehyde (UF) microcapsules loaded with corrosion inhibitor for enhancing the anti-corrosive properties of acrylic-based multifunctional PU coatings

机译：装有缓蚀剂的尿素甲醛（UF）微胶囊，可增强丙烯酸类多功能PU涂料的防腐性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present work focuses on enhancing the anti-corrosive performance of multi-functional polyurethane coatings by encapsulation of the commercially available inhibitors 2-mercaptobenzimidazole and 2-mercapatobenzothiozole, despite their reaction with diisocyanate. Initially, inhibitors were encapsulated by in situ polymerisation of urea and formaldehyde. Formation of microcapsules was confirmed by optical microscopy and FE-SEM. Thermal stability and particle size of microcapsules embedded with inhibitors were estimated by TGA and a particle size analyzer, respectively. Release rates of inhibitors were investigated by UV spectrophotometry. Anti-corrosive coatings were designed by dispersing encapsulated inhibitors in a multi-functional acrylic-based PU coating. The anti-corrosive study of coatings was investigated by the Tafel plot method, weight loss study, immersion study, and FE-SEM of corrosive panels. The impact of microcapsule concentration on the anticorrosive nature of coatings was also evaluated. Our study showed an increase in corrosion inhibition efficiency of PU coatings after incorporation of encapsulated corrosion inhibitors. Comparison of anti-corrosive performance of encapsulated inhibitors demonstrated that 2-MBT is superior to 2-MBI.
机译：尽管它们与二异氰酸酯反应，但本发明的工作集中在通过包封市售的抑制剂2-巯基苯并咪唑和2-巯基苯并噻唑来增强多功能聚氨酯涂料的防腐性能。最初，通过尿素和甲醛的原位聚合来封装抑制剂。通过光学显微镜和FE-SEM确认了微胶囊的形成。通过TGA和粒度分析仪分别估算了包埋有抑制剂的微胶囊的热稳定性和粒度。通过紫外分光光度法研究了抑制剂的释放速率。通过将封装的抑制剂分散在多功能丙烯酸基PU涂料中来设计防腐涂料。通过Tafel图法，失重研究，浸没研究和腐蚀面板的FE-SEM研究了涂层的防腐研究。还评估了微胶囊浓度对涂料防腐性能的影响。我们的研究表明，加入包封的缓蚀剂后，PU涂层的缓蚀效率提高。封装抑制剂的抗腐蚀性能比较表明，2-MBT优于2-MBI。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号