Anticorrosive properties in 1020 steel of an alkaloid-rich extract obtained from the jaborandi biomass (Pilocarpus microphyllus staff ex wardlew) of the pilocarpine industrial production chain

IF 2.1 4区 综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES Rendiconti Lincei-Scienze Fisiche E Naturali Pub Date : 2024-05-23 DOI:10.1007/s12210-024-01253-w
Francisco Marcelino Almeida de Araújo, Emely Thainara Almeida de Araújo, Miguel Gomes Cardoso, Bruno Silva Sá, Leiz Maria Costa Veras, Andreanne Gomes Vasconcelos, David Fernandes Lima, João Gonçalves, Augusto Batagin-Neto, Luciene Costa Vasconcelos, Massimo Lucarini, Alessandra Durazzo, Daniel Dias Rufino Arcanjo, José Ribeiro dos Santos Júnior, José Roberto de Souza Almeida Leite
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Abstract

The annual costs related to corrosion and its prevention have been responsible for a significant part of the Gross Domestic Product in the Western world. In addition to economic costs and technological delays, corrosion can lead to structural failures having dramatic consequences for humans and the environment. In this context, the constant development of coating technology is needed. The search for natural products applied in anti-corrosive coatings has been of great industrial importance as they have a lower energy consumption in their production when compared to their synthetic counterparts. Plant extracts represent a rich source of natural chemical components that can be extracted by means of simple and low-cost procedures. In this research, an alkaloid-rich extract from the jaborandi leaf, with epiisopiloturine (EPI) as the major alkaloid, is investigated for its anti-corrosive activity. The investigation includes the coating formation on an AISI type 1020 steel substrate, which was submitted to accelerated corrosion tests and then to polarization analysis and impedance measurements in saline environment. The extract-covered plates proved to be corrosion-resistant in a saline environment. Thus, using computational chemistry, we propose an electrostatic interaction model that rationalizes the EPI adhesion on metal surfaces.

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从皮洛卡品工业生产链中的贾博兰迪生物质(Pilocarpus microphyllus staff ex wardlew)中提取的富含生物碱的提取物在 1020 钢中的抗腐蚀性能
在西方国家,每年与腐蚀及其预防相关的费用占国内生产总值的很大一部分。除了经济损失和技术滞后之外,腐蚀还会导致结构失效,对人类和环境造成严重后果。在这种情况下,需要不断发展涂层技术。寻找应用于防腐涂料的天然产品具有重要的工业意义,因为与合成产品相比,天然产品的生产能耗更低。植物提取物是天然化学成分的丰富来源,可以通过简单、低成本的方法提取。在这项研究中,研究人员从茉莉叶中提取了一种富含生物碱的提取物,其主要生物碱为表异丙基嘌呤(EPI),研究其抗腐蚀活性。研究内容包括在 AISI 1020 型钢基材上形成涂层,并对其进行加速腐蚀试验,然后在盐水环境中进行极化分析和阻抗测量。事实证明,被提取物覆盖的钢板在盐水环境中具有耐腐蚀性。因此,通过计算化学,我们提出了一个静电相互作用模型,该模型合理地解释了 EPI 在金属表面的附着情况。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Rendiconti Lincei-Scienze Fisiche E Naturali
Rendiconti Lincei-Scienze Fisiche E Naturali MULTIDISCIPLINARY SCIENCES-
CiteScore
4.10
自引率
10.00%
发文量
70
审稿时长
>12 weeks
期刊介绍: Rendiconti is the interdisciplinary scientific journal of the Accademia dei Lincei, the Italian National Academy, situated in Rome, which publishes original articles in the fi elds of geosciences, envi ronmental sciences, and biological and biomedi cal sciences. Particular interest is accorded to papers dealing with modern trends in the natural sciences, with interdisciplinary relationships and with the roots and historical development of these disciplines.
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