Knotek Vítězslav, Ďurovič Michal, Kučerová Irena
Department of Chemical Technology of Monument Conservation, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague, Czech Republic.
Materials (Basel). 2023 Jan 31;16(3):1210. doi: 10.3390/ma16031210.
Polymeric materials are widely used at present as auxiliary materials in the preservation of tangible cultural heritage in museums, galleries, or libraries. The desired properties of such materials include chemical inertness and long lifetime, which are verified by accelerated aging tests. This work has tested three color types of PE foam Plastazote LD45 (white, grey, and black), which is recommended for use in the field of cultural heritage preservation. The volatile organic compounds released from the foams after artificial aging and their influence on lignocellulosic materials were investigated. The cellulosic materials were artificially aged in close contact with the foams. All foams released organic acids ranging from acetic acid to hexanoic acid. White foam released organic acids to an extent higher by an order of magnitude compared to the grey and black types. A great influence of white foam on the properties of cellulosic materials was observed. There were large differences in the rate of degradation between the types of foams tested, indicating the need to develop a test method in order to determine the suitability for use in the preservation of culture heritage objects.
目前，聚合材料作为辅助材料在博物馆、美术馆或图书馆的有形文化遗产保护中被广泛使用。这类材料所需的特性包括化学惰性和长寿命，这通过加速老化试验得到验证。本研究测试了三种颜色类型的PE泡沫Plastazote LD45（白色、灰色和黑色），该材料被推荐用于文化遗产保护领域。研究了泡沫材料在人工老化后释放的挥发性有机化合物及其对木质纤维素材料的影响。纤维素材料与泡沫紧密接触进行人工老化。所有泡沫都释放出从乙酸到己酸的有机酸。白色泡沫释放的有机酸量比灰色和黑色类型高出一个数量级。观察到白色泡沫对纤维素材料的性能有很大影响。测试的泡沫类型之间的降解速率存在很大差异，这表明需要开发一种测试方法来确定其在文化遗产保护对象中的适用性。
