摘要
为寻找有效且安全的纸质文物用抑菌剂,选用ZnO纳米颗粒进行研究。通过TEM和XRD表征其形貌特征和晶体结构,通过酸碱性测试、静置观察对比实验和抑菌活性测试来评价ZnO纳米颗粒的抑菌性能和安全性。所选材料尺寸20-50 nm左右,具有六方相晶体结构且结晶良好。添加纳米ZnO颗粒可以改善浆糊的酸碱性,确保古书画的装裱环节中不加重酸化程度,甚至可以中和宣纸酸性。静置观察实验表明,添加纳米ZnO颗粒可在一定时间内有效抑制浆糊中霉菌的生长,而且浆糊的颜色外观与空白浆糊基本一致。色差测试说明添加纳米ZnO颗粒不会改变浆糊和宣纸的颜色。抑菌活性测试表明,添加纳米ZnO颗粒可有效抑制浆糊中霉菌的生长,对于金黄色葡萄球菌和大肠杆菌具有明显的抑制效果。总之,ZnO纳米颗粒抑菌剂可以控制浆糊的酸化,具有明显的抑菌效果,且不影响宣纸和浆糊颜色,具备一定的安全性。
Abstract： This research aims to find an effective and safe bacteriostasis for paper preservation. The morphology and crystal structure of selected ZnO nanomaterial have been characterized by TEM and XRD and its bacteriostasic activity and safety are estimated through pH measurement, static observation comparison, bacteriostasic activity and chromatic aberration. The results show that ZnO nanoparticles of 20-50nm with perfect hexagonal phase can improve the acidity of paste, inhibit bacterial growth and show obvious bacteriostasic effect towards Staphylococcus aureaus and Escherichia coli without chemical reaction to paste or changing the colour of the paste or the paper. Therefore, ZnO nanoparticles are safe in paper preservation.
出处
《中国国家博物馆馆刊》
CSSCI
北大核心
2014年第3期145-152,共8页
Journal of National Museum of China
基金
北京市科技计划课题<古书画揭裱保护研究>(课题编号:Z121100000312025)的资助
