ABSTRACT

Nanotechnology is a branch of science and engineering that involves the synthesis, modification, characterisation and application of nanoscale materials in diverse fields. They provide excellent surface coverage and are successfully used as corrosion inhibitors. However, most of the nanomaterials are not effective and require special treatments or modifications for proper anticorrosive activities. The present review article features the current approaches and practices that have been adopted to enhance the anticorrosive performance of nanoscale materials. One of the most growing interests in this direction is the use of covalently and non-covalently functionalised nanomaterials. The functionalised nanomaterials show remarkable improvement in corrosion protection performance. The covalently functionalised nanomaterials show better dispersibility and thereby better efficiency in aqueous electrolytes. In the anticorrosive formulations, nanomaterials avoid the penetration of corrosive species and thereby increase durability and corrosion inhibition. The nanomaterials in anticorrosive formulations also enhance weathering resistance, UV resistance, mechanical performance, thermal stability and hydrophobic property.

摘要

纳米技术是科学与工程的一个分支，涉及纳米材料在不同领域的合成、改性、表征和应用。它们提供出色的表面覆盖率，并成功地用作缓蚀剂。然而，大多数纳米材料都不是有效的，需要特殊处理或改性才能发挥适当的防腐作用。本综述文章介绍了目前为提高纳米材料的防腐性能而采用的方法和实践。在这个方向上最受关注的一个是使用共价和非共价功能化的纳米材料。功能化的纳米材料在腐蚀防护性能方面表现出显着改善。共价功能化的纳米材料显示出更好的分散性，从而在水性电解质中表现出更好的效率。在防腐配方中，纳米材料避免了腐蚀性物质的渗透，从而提高了耐久性和缓蚀性。防腐配方中的纳米材料还增强了耐候性、抗紫外线性、机械性能、热稳定性和疏水性。