盐水比对壁画酥碱病害产生和发展速率的影响

发布时间：2018-04-25 07:41

本文选题：壁画 + 酥碱　；参考：《表面技术》2017年02期

【摘要】：目的通过一种无损检测方法研究盐水比对壁画酥碱病害产生和发展速率的影响。方法采用9种盐水质量比(盐水比)制作模拟酥碱病害壁画试块,在恒湿恒温箱中进行干湿循环试验后,用Matlab软件和自编程序对各循环周期后样品数码照片进行分析,获得样品表面高度的三维分布图和量化数据。结果在所研究的时间范围内,盐水比为1:10时,样品未出现明显的酥碱病害;盐水比为2:10和3:10时,模拟出类似于敦煌莫高窟壁画酥碱现象;盐水比为4:10、5:10、6:10、9:10、11:10和13:10时,颜料层出现裂缝、起翘,后地仗层、颜料层整体脱落。结论壁画酥碱病害发展速率呈阶段性,盐水比越大,壁画酥碱病害的破坏风险越大,发展越快。病害发展形貌与软件处理相结合的方法可获得样品酥碱病害发展模型和速率,是一种无损、可量化的评价方法。
[Abstract]:Objective to study the effect of brine ratio on the occurrence and development rate of mural pasteurine disease by a nondestructive testing method. Methods 9 kinds of brine mass ratio (brine ratio) were used to make the mural samples of simulated pasteurization diseases. After dry-wet cycle tests were carried out in the constant humidity incubator, the digital photos of samples after each cycle were analyzed by Matlab software and self-compiled program. Three dimensional distribution and quantitative data of the surface height of the sample were obtained. Results within the time range studied, there was no obvious pasteurization disease in the samples when the brine ratio was 1:10; the brine ratio was 2:10 and 3:10, and the alkali-like phenomena similar to those in Dunhuang Mogao Grottoes were simulated; the brine ratio was 4: 10, 5: 10, 10: 10, 9: 10, 10: 10, and 3:10, the paint layer appeared cracks. Warp, hind layer, pigment layer as a whole fall off. Conclusion the development rate of mural pasteine disease is phased. The larger the brine ratio, the greater the damage risk and the faster the development of mural pasteine disease. The development model and rate of samples can be obtained by combining the morphology of disease development with software processing. It is a non-destructive and quantifiable evaluation method.
【作者单位】：北京化工大学材料电化学过程重点实验室;北京化工大学材料科学与工程学院;文物保护领域科技评价研究国家文物局重点科研基地;敦煌研究院保护研究所;敦煌研究院国家古代壁画保护工程技术研究中心;
【基金】：国家科技支撑计划(2013BAK01B01)~~
【分类号】：TB304;K879.41

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