B72 (Paraloid B-72)与微晶石蜡,作为传统的保护封护材料,一直被广泛运用于文物保护修复实践。本研究旨在探究两种封护材料的防水保护性能,以便更好地指导修复实践,同时引入电化学噪声技术,探索其在评估涂层防腐性能的能力。实验使用修...B72 (Paraloid B-72)与微晶石蜡,作为传统的保护封护材料,一直被广泛运用于文物保护修复实践。本研究旨在探究两种封护材料的防水保护性能,以便更好地指导修复实践,同时引入电化学噪声技术,探索其在评估涂层防腐性能的能力。实验使用修复实践中的方式制备涂层,并使用极化曲线、电化学阻抗谱及电化学噪声三种电化学方法,结合扫描电子显微镜,对涂层进行研究。结果表明,B72与微晶石蜡在成膜性和耐水性上各有优劣,不同的特性表明它们适合运用在不同的场合。此外电化学噪声的结果与常规电化学的测量结果有较好的一致性,而其无损、便于测量和稳定性要求低的独特优势不仅满足文物保护的原则要求,也适合金属文物腐蚀情况的现场测量与长期监测。B72 (Paraloid B-72) and microcrystalline paraffin wax, as traditional sealing materials, have been widely used in cultural relics preservation and restoration practices. The aim of this study was to investigate the waterproof preservation performance of these two sealing materials in order to better guide restoration practices, and to introduce the electrochemical noise (EN) to explore its ability in evaluating the anticorrosive performance of coatings. The coatings were prepared in the same way as in restoration practice and were investigated using three electrochemical methods, polarization curves, electrochemical impedance spectroscopy (EIS) and electrochemical noise, in conjunction with scanning electron microscopy (SEM). The results showed that B72 and microcrystalline paraffin wax had their own advantages and disadvantages in terms of film formation and waterproof performance. The different properties indicated that they were suitable for different applications. In addition, the results of electrochemical noise were in good agreements with those of conventional electrochemical measurements. Its unique advantages of non-destructive, easy to measure and low stability requirement not only satisfy the principle requirements of cultural relics preservation, but also are suitable for on-site measurements and long-term monitoring of corrosion of metal artifacts.展开更多
文摘B72 (Paraloid B-72)与微晶石蜡,作为传统的保护封护材料,一直被广泛运用于文物保护修复实践。本研究旨在探究两种封护材料的防水保护性能,以便更好地指导修复实践,同时引入电化学噪声技术,探索其在评估涂层防腐性能的能力。实验使用修复实践中的方式制备涂层,并使用极化曲线、电化学阻抗谱及电化学噪声三种电化学方法,结合扫描电子显微镜,对涂层进行研究。结果表明,B72与微晶石蜡在成膜性和耐水性上各有优劣,不同的特性表明它们适合运用在不同的场合。此外电化学噪声的结果与常规电化学的测量结果有较好的一致性,而其无损、便于测量和稳定性要求低的独特优势不仅满足文物保护的原则要求,也适合金属文物腐蚀情况的现场测量与长期监测。B72 (Paraloid B-72) and microcrystalline paraffin wax, as traditional sealing materials, have been widely used in cultural relics preservation and restoration practices. The aim of this study was to investigate the waterproof preservation performance of these two sealing materials in order to better guide restoration practices, and to introduce the electrochemical noise (EN) to explore its ability in evaluating the anticorrosive performance of coatings. The coatings were prepared in the same way as in restoration practice and were investigated using three electrochemical methods, polarization curves, electrochemical impedance spectroscopy (EIS) and electrochemical noise, in conjunction with scanning electron microscopy (SEM). The results showed that B72 and microcrystalline paraffin wax had their own advantages and disadvantages in terms of film formation and waterproof performance. The different properties indicated that they were suitable for different applications. In addition, the results of electrochemical noise were in good agreements with those of conventional electrochemical measurements. Its unique advantages of non-destructive, easy to measure and low stability requirement not only satisfy the principle requirements of cultural relics preservation, but also are suitable for on-site measurements and long-term monitoring of corrosion of metal artifacts.
