In situ micro-Raman spectroscopy of curing dynamics of antibacterial, antibiofouling, and anticorrosion ceramic epoxy with an ionic liquid additive

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2025-07-15 DOI:10.1016/j.cej.2025.165868

Mark Joseph Pasciolco, Nicolas Coca-Lopez, John David Pilapil, Qiong Wu, Raquel Portela, Wei Han, Xiangping Zhang, Miguel A. Bañares, Joseph Kai Cho Kwan, King Lun Yeung

{"title":"In situ micro-Raman spectroscopy of curing dynamics of antibacterial, antibiofouling, and anticorrosion ceramic epoxy with an ionic liquid additive","authors":"Mark Joseph Pasciolco, Nicolas Coca-Lopez, John David Pilapil, Qiong Wu, Raquel Portela, Wei Han, Xiangping Zhang, Miguel A. Bañares, Joseph Kai Cho Kwan, King Lun Yeung","doi":"10.1016/j.cej.2025.165868","DOIUrl":null,"url":null,"abstract":"Coating is a cost-effective method for protecting metal pipes, and the addition of ionic liquids can significantly enhance the antibiofouling and anti-corrosion properties of epoxy coatings. This study utilized in situ Raman spectroscopy to investigate the curing progress of ceramic epoxy coatings, specifically examining the effect of 1-butyl-3-methylimidazolium iodide (BMIM-I) on Ceramic Polymer 232 at room temperature and at 55 °C. This non-destructive technique allows real-time monitoring of localized and individual molecular reactions during the curing process. Raman signals from both epoxy resin (912 and 1256 cm−1) and curing agent (1002 cm−1) were analyzed to assess the curing progress. The results demonstrate that curing temperature significantly affects the curing kinetics, while the presence of BMIM-I does not adversely impact the curing process, as indicated by consistent trends across various Raman bands. Furthermore, incorporating BMIM-I into the epoxy matrix imparts 20.3 % and 86.9 % reduction in E. coli and S. aureus biofilm formation after 24 h and 92.6 % corrosion inhibition efficiency, making it a promising additive for enhancing the performance of epoxy coatings in water pipeline applications. Importantly, the mechanical and ageing properties of the epoxy remain unaffected, confirming that BMIM-I can be integrated effectively without compromising the coating's structural integrity.","PeriodicalId":270,"journal":{"name":"Chemical Engineering Journal","volume":"26 1","pages":""},"PeriodicalIF":13.3000,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemical Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.cej.2025.165868","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}

引用次数: 0

Abstract

Coating is a cost-effective method for protecting metal pipes, and the addition of ionic liquids can significantly enhance the antibiofouling and anti-corrosion properties of epoxy coatings. This study utilized in situ Raman spectroscopy to investigate the curing progress of ceramic epoxy coatings, specifically examining the effect of 1-butyl-3-methylimidazolium iodide (BMIM-I) on Ceramic Polymer 232 at room temperature and at 55 °C. This non-destructive technique allows real-time monitoring of localized and individual molecular reactions during the curing process. Raman signals from both epoxy resin (912 and 1256 cm⁻¹) and curing agent (1002 cm⁻¹) were analyzed to assess the curing progress. The results demonstrate that curing temperature significantly affects the curing kinetics, while the presence of BMIM-I does not adversely impact the curing process, as indicated by consistent trends across various Raman bands. Furthermore, incorporating BMIM-I into the epoxy matrix imparts 20.3 % and 86.9 % reduction in E. coli and S. aureus biofilm formation after 24 h and 92.6 % corrosion inhibition efficiency, making it a promising additive for enhancing the performance of epoxy coatings in water pipeline applications. Importantly, the mechanical and ageing properties of the epoxy remain unaffected, confirming that BMIM-I can be integrated effectively without compromising the coating's structural integrity.

Abstract Image

查看原文本刊更多论文

离子液体添加剂对抗菌、抗污和防腐环氧陶瓷固化动力学的原位微拉曼光谱研究

涂料是保护金属管道的一种经济有效的方法，离子液体的加入可以显著提高环氧涂料的抗污和防腐性能。本研究利用原位拉曼光谱研究了陶瓷环氧涂料的固化过程，特别是研究了1-丁基-3-甲基咪唑碘化（BMIM-I）在室温和55 °C下对陶瓷聚合物232的影响。这种非破坏性技术允许在固化过程中实时监测局部和单个分子反应。通过分析环氧树脂（912和1256 cm−1）和固化剂（1002 cm−1）的拉曼信号来评估固化过程。结果表明，固化温度显著影响固化动力学，而BMIM-I的存在对固化过程没有不利影响，这表明了不同拉曼波段的一致趋势。此外，加入bmm - 1后，24 h后，大肠杆菌和金黄色葡萄球菌的生物膜形成分别减少20.3% %和86.9% %，腐蚀抑制效率为92.6% %，是一种很有前景的用于提高输水管道环氧涂料性能的添加剂。重要的是，环氧树脂的机械性能和老化性能不受影响，这证实了bmi - i可以有效地集成在一起，而不会影响涂层的结构完整性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.