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用于减轻铁胆汁油墨腐蚀对纤维素支物的影响的多氧甲基酸离子液体

Margarida Nunes¹, Pilar García-Orduña², Elena Atrián-Blasco³

¹HERCULES Laboratory/IN2PAST, Associate Laboratory for Research and Innovation in Heritage, Arts, Sustainability and Territory, University of Évora, Evora 7004-516, Portugal.

|September 2, 2024

概括

新的多氧金属离子液体 (POM-IL) 为保存历史文档提供了一个有前途的解决方案. 这些涂层保护纸张免受铁胆墨 (IGI) 腐蚀,防止损坏和分解.

科学领域:

材料科学材料科学材料科学
化学化学化学
保护科学保护科学

背景情况:

铁胆墨 (IGI) 具有历史意义,但通过酸催化水解和铁催化氧化导致严重的纸张降解.
目前的保护方法缺乏对IGI引起的损害的长期有效性,需要新的保护策略.

研究的目的:

引入聚氧金属离子液体 (POM-ILs) 作为IGI降解的纤维素材料的有效,最小侵入性涂层.
评估POM-IL的保护能力和与IGI含有历史文档的兼容性.

主要方法:

准备含有IGI模型的纸质模型.
用POM-IL涂覆模型并将其人工老化.
使用色度测量,扫描电子显微镜-能量分散式X射线光谱 (SEM/EDS) 和紫外线光谱学进行分析.
使用单晶X射线衍射对协调物种的表征.

主要成果:

POM-IL涂料对IGI模型的美学和形态特性产生了最小的干扰.
证明了聚氧甲酸盐 (POMs) 协调来自IGI的自由Fe (II) 离子的能力.
一种新型二维物种的形成和特征,[(SiW11O39Fe) 2O]K12·28H2O.

结论:

POM-ILs是纤维素支物的有效水和抗腐蚀涂层.
这些涂层显示出具有很大的潜力,可以长期保存用铁胆汁油墨写的历史文档.
该研究强调了一种新的方法来抵消IGI降解机制.

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