Low-cost mussel inspired poly(catechol/polyamine) coating with superior anti-corrosion capability on copper
Low-cost mussel inspired poly(catechol/polyamine) coating with superior anti-corrosion capability on copper
复制标题
低成本贻贝灵感聚（儿茶酚/聚胺）涂层，对铜具有卓越的防腐能力
DOI：
10.1016/j.jcis.2015.10.056
复制
发表时间：
2016-02-01
影响因子：
9.9
通讯作者：
Xu, Jian
中科院分区：
文献类型：
--
作者：
Wu, Junjie;Cai, Chao;Xu, Jian
开发了一种受贻贝启发的低成本方法，用于在铜基材上生产防腐涂层。儿茶酚（CA）和聚胺（PA）自发聚合，在铜表面形成聚（鲸蜡醇/聚胺）（P（CA/PA））粘合涂层，然后用1-十二烷硫醇接枝P（CA/PA）。 SEM、接触角、XPS、FTIR 和 TG 结果表明，通过多重相互作用和化学接枝形成了均匀、致密和热稳定的涂层。电化学测试表明Cu-P(CA/PA)-SH具有-81 mV的最高腐蚀电位、0.15 μA/cm(2)的最低腐蚀电流密度和57.19 k Omega cm(2)的最高涂层电阻，并且无论在溶液浸泡还是盐雾测试中都表现出良好的长期稳定性。 Cu-P(CA/PA)-SH显着的耐腐蚀性能归因于仿贻贝涂层的疏水性、良好的稳定性和强湿附着力的协同效应。这项研究为材料保护提供了一种有效且廉价的方法，可能会给与表面和界面工程相关的材料、生物学和医学领域带来启发。 (C) 2015 Elsevier Inc. 保留所有权利。
A low-cost mussel inspired approach was developed to produce anti-corrosion coating on copper substrate. Catechol (CA) and polyamine (PA) were spontaneously polymerized to form adhesive coating of poly(cetechol/polyamine) (P(CA/PA)) onto copper surface and then P(CA/PA) was grafted by 1-dodecanethiol. The SEM, contact angle, XPS, FTIR and TG results demonstrated the formation of uniform, compact and thermal stable coatings through multiple interactions and chemically grafting. Electrochemical tests indicated of Cu-P(CA/PA)-SH possessed a highest corrosion potential of -81 mV, a lowest corrosion current density of 0.15 mu A/cm(2), and a highest coating resistance of 57.19 k Omega cm(2), and also exhibit great long-term stability whether in solution immersion or salt spray tests. The remarkable anti-corrosion capability of Cu-P(CA/PA)-SH could be ascribed to the synergistic effect of the hydrophobicity, good stability, and strong wet adhesion of the mussel-inspired coating. This study provides an effective and cheap way for material protection and may give inspiration in the fields of material, biology and medicine relating to surface and interface engineering. (C) 2015 Elsevier Inc. All rights reserved.