NANOSTRUCTURED EPDXY-BASED ANTICORROSIVE COATINGS

编号 020028103

推送时间 20210308

研究领域 林产化工 

年份 2021 

类型 期刊 

语种 英语

标题 NANOSTRUCTURED EPDXY-BASED ANTICORROSIVE COATINGS

来源期刊 Surface Review and Letters

期 第281期

发表时间 20200203

关键词 Corrosion;  functionalized epoxy resin;  nanoparticles;  polarization resistance; 

摘要 A functionalized epoxy resin (DGEBA) was synthesized from abietic acid, through the esterification and condensation reactions between the carboxyl groups of abietic acid and the basic functional groups of an epoxy resin. This method of synthesis increases the epoxy resin surface adhesion, as well as the chemical and thermal stability, for being used as a protective coating against corrosion of copper plates. Characterization analyses included FTIR and SEM of both raw and functionalized epoxy resin substrates performed. The corrosion performance of these coatings when applied onto Cu and stainless plates was tested in terms of: (i) immersion in a misty saline chamber, under accelerated corrosive conditions; (ii) Taber abrasion and (iii) hardness, adhesion and potentiodynamic polarization. The obtained results indicate the existence of a chemical bond between the epoxy ring and the carboxyl functional groups of abietic acid. This chemical bonding provided an increased adhesion as well as better chemical and thermal stabilities than those of the original resin. The corrosion resistance lining the functionalized epoxy resin films indicated that their anticorrosive efficiency was up to 30% higher than that of the functionalized resin.

服务人员 尚玮姣

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