• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>RSC Advances >Bio-inspired electrochemical corrosion coatings derived from grapheneatural lacquer composites
【24h】

Bio-inspired electrochemical corrosion coatings derived from grapheneatural lacquer composites

机译：源自石墨烯/天然清漆复合材料的生物启发型电化学腐蚀涂料

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Protective corrosion coatings are preferably composed of available, environmentally friendly, and low-volatility organic compounds. Herein, new excellent corrosion graphene/raw lacquer composite coatings were formed, in which waterborne graphene was modified by taking lignin tripolymer (LT) as an aqueous stabilizer and subsequently adding to raw lacquer (RL). Graphene/lacquer composite coatings were achieved by an eco-friendly fabrication process. The structure and thermostability of the lignin derivative were studied by Fourier transform infrared spectroscopy (FT-IR) and thermogravimetry (TG), respectively, while the composition of the LT was characterized by Raman spectrometry. And the experimental result revealed that LT was an effective graphene dispersant (LTG) up to 60 d without any precipitation. Besides, the SEM of the graphene/lacquer coatings revealed that the excellent protection properties were highly attributable to the formation of a very rough surface, because of the highly dispersed nature of the graphene nanoparticles. Also, the corrosion behavior of the composite coatings on a metal substrate were studied by polarization curve analysis and electrochemical impedance spectroscopy (EIS). According to the electrochemical corrosion tests, the lacquer composite coating with 5 wt% LTG dispersion (RL/LTG-5, containing 0.3 wt% graphene) possessed excellent corrosion resistance, making it suitable for protecting bare metal substrates.
机译：防护腐蚀涂层最好由可利用的，环境友好的和低挥发性的有机化合物组成。在此，形成了新的优异的腐蚀石墨烯/生漆复合涂层，其中通过以木质素三元共聚物（LT）作为水性稳定剂并随后添加到生漆（RL）中来改性水性石墨烯。石墨烯/清漆复合涂料是通过环保的制造工艺实现的。木质素衍生物的结构和热稳定性分别通过傅立叶变换红外光谱（FT-IR）和热重分析（TG）进行了研究，而LT的组成则通过拉曼光谱进行了表征。实验结果表明，LT是长达60 d的有效石墨烯分散剂，无沉淀。此外，石墨烯/清漆涂层的SEM显示，由于石墨烯纳米颗粒的高度分散性，优异的保护性能高度归因于非常粗糙的表面的形成。此外，还通过极化曲线分析和电化学阻抗谱（EIS）研究了复合涂层在金属基材上的腐蚀行为。根据电化学腐蚀测试，LTG分散体含量为5 wt％（RL / LTG-5，含0.3 wt％石墨烯）的清漆复合涂料具有优异的耐腐蚀性，使其适合于保护裸金属基材。

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