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一种研究新型LED照明系统对现代涂料影响的多分析方法：化学稳定性研究。

A Multi-Analytical Approach for Studying the Effect of New LED Lighting Systems on Modern Paints: Chemical Stability Investigations.

作者信息

Pintus Valentina, Szabó Ferenc, Noel Tóth Dávid, Wieland Karin, Csuti Péter, Anghelone Marta, Santorelli Ottavia, Salvadori Carlotta, Haisch Christoph, Sterflinger Katja, Schreiner Manfred

机构信息

Institute of Science and Technology in Art, Academy of Fine Arts, Schillerplatz 3, 1010 Vienna, Austria.

Institute for Conservation-Restoration, Modern-Contemporary Art, Academy of Fine Arts, Schillerplatz 3, 1010 Vienna, Austria.

出版信息

Polymers (Basel). 2021 Dec 17;13(24):4441. doi: 10.3390/polym13244441.

DOI:10.3390/polym13244441
PMID:34960992
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8707339/
Abstract

This study aims to investigate the chemical stability of some modern paint samples exposed to a new Light Emitting Diode (LED)-lighting system and a halogen lamp by using micro-attenuated total reflectance of Fourier transform infrared spectroscopy (µ-ATR-FTIR), µ-Raman, pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), and thermally assisted hydrolysis and methylation of GC/MS (THM-GC/MS). Those investigations were performed before and after the exposure of the samples to lightings for 1250, 2400, 3300, and 5000 h. The results obtained with µ-Raman spectroscopy show the high stability of the selected inorganic pigments after the exposure to the lighting systems; while similar to the UV/Vis/NIR results reported in a previous study, µ-ATR-FTIR and THM-GC/MS results evidence greater chemical changes occurring principally on the linseed oil binder-based mock-ups among the acrylic and alkyd-based samples. Moreover, principal component analyses (PCA) and hierarchical cluster analyses (HCA) of THM-GC/MS results highlight that those changes were mostly dependent on the exposure time and on the type of pigment, while being independent of the lighting system used. Finally, semi-quantitative µ-ATR-FTIR results show slight pigment enrichment at the paint surface due to the auto and photo-oxidative degradation of the linseed oil binder.

摘要

本研究旨在通过使用傅里叶变换红外光谱微衰减全反射（µ-ATR-FTIR）、µ-拉曼光谱、热解气相色谱/质谱联用仪（Py-GC/MS）以及气相色谱/质谱联用仪的热辅助水解和甲基化（THM-GC/MS），研究一些现代涂料样品在新型发光二极管（LED）照明系统和卤素灯下的化学稳定性。这些研究在样品暴露于照明1250、2400、3300和5000小时之前和之后进行。µ-拉曼光谱获得的结果表明，所选无机颜料在暴露于照明系统后具有很高的稳定性；而与先前研究中报道的紫外/可见/近红外结果相似，µ-ATR-FTIR和THM-GC/MS结果表明，在丙烯酸和醇酸基样品中，主要发生在亚麻籽油粘结剂基模型上的化学变化更大。此外，THM-GC/MS结果的主成分分析（PCA）和层次聚类分析（HCA）突出表明，这些变化主要取决于暴露时间和颜料类型，而与所使用的照明系统无关。最后，半定量µ-ATR-FTIR结果表明，由于亚麻籽油粘结剂的自动和光氧化降解，涂料表面出现轻微的颜料富集。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/52f7733e74ba/polymers-13-04441-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/a810e34bf167/polymers-13-04441-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/8d6cf46c2d7f/polymers-13-04441-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/aa2f2b178aa5/polymers-13-04441-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/fa8a3269a8a8/polymers-13-04441-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/42eed849a632/polymers-13-04441-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/52f7733e74ba/polymers-13-04441-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/a810e34bf167/polymers-13-04441-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/8d6cf46c2d7f/polymers-13-04441-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/aa2f2b178aa5/polymers-13-04441-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/fa8a3269a8a8/polymers-13-04441-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/42eed849a632/polymers-13-04441-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f962/8707339/52f7733e74ba/polymers-13-04441-g006.jpg

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本文引用的文献

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Analysis of paint cross-sections: a combined multivariate approach for the interpretation of μATR-FTIR hyperspectral data arrays.分析油漆断面：一种用于解释 μATR-FTIR 高光谱数据数组的组合多元方法。
Anal Bioanal Chem. 2013 Jan;405(2-3):625-33. doi: 10.1007/s00216-011-5680-1. Epub 2012 Jan 8.
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