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Home / Equine Research Bank / Polymers (Basel) / Microscopic Imaging Technology Assisted Dynamic Monitoring a...
Polymers2022; 14(4); 760; doi: 10.3390/polym14040760

Microscopic Imaging Technology Assisted Dynamic Monitoring and Restoration of Micron-Level Cracks in the Painted Layer of Terracotta Warriors and Horses of the Western Han Dynasty.

Abstract: Cracks are one of the most common issues affecting colored pottery relics; these can be divided into macroscopic cracks, recognizable by the human eye, and micron cracks, which cannot be observed by the naked eye. The gradual development of micron cracks eventually leads to large-scale cracks and the shedding of the coating layer. The repair of such micron cracks poses a key technical difficulty in restoring painted pottery remnants from the Western Han Dynasty. We attempt to solve this problem by reporting on a method that entails the use of a water-borne fluoropolymer material as the adhesive agent, as well as ultra-depth-of-field, digital microscopic imaging technology to build an operating platform for an optical imaging monitoring system. By making simulated ceramic samples, we systematically investigated the influences of water-borne fluoropolymer on chromaticity, adhesion, contact angle, surface morphology, and thermal stability of the paint layer. The results indicate that the color of the painted layer, when treated with the water-borne fluoropolymer, did not change, and the adhesion and contact angle of the painted layer were improved. Additionally, the outcomes of the SEM analysis show that the adhesion and hydrophobicity of the painted layer were improved because the water-borne fluoropolymer filled up the porous structure of the painted layer and covered the pigment particles. These findings demonstrate that aqueous, water-borne fluoropolymer can be used as an adhesive agent for micron cracks. Meanwhile, via the operating platform of the optical imaging monitoring system, the micron cracks of the painted terracotta warriors and horses from the Western Han Dynasty were successfully repaired using the water-borne fluoropolymer. The results imply that the microstructure, size, and geometric spaces of the cracks can be obtained directly utilizing microscopic imaging technology. The dynamic monitoring and imaging system described above can be employed to assist prosthetists in visualizing micro-repair operations in real time, assist with fine visual operations during the repair process, and realize dynamic video recording of the entire repair process. Our work provides a simple visualization method to repair micron-scale cracks in painted pottery relics by applying modern fluoropolymer and ultra-depth-of-field digital microscopic imaging technology.
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Publication Date: 2022-02-15 PubMed ID: 35215673PubMed Central: PMC8877898DOI: 10.3390/polym14040760Google Scholar: Lookup
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Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study seeks to address the problem of restoring micron-level cracks in ancient painted pottery remnants from the Western Han Dynasty. The researchers propose a solution that involves the use of ultra-depth-of-field digital microscopic imaging technology and a water-borne fluoropolymer material as an adhesive agent.

Methodology and Testing

  • The study began by creating simulated ceramic samples as a means to test the proposed solution.
  • The researchers examined several impacts of using a water-borne fluoropolymer on the pottery, specifically examining differences in chromaticity, adhesion, contact angle, surface morphology, and thermal stability of the paint layer.
  • Through the use of microscopic imaging technology, researchers were able to track and gain insights into the microstructures and geometric spaces of the cracks.

Findings

  • It was determined that the water-borne fluoropolymer did not alter the colour of the painted layer.
  • This method optimised adhesion and contact angle of the painted layer, important steps to ensure coating stability and prevent further decay of the pottery.
  • Using this methodology, the painted layers’ adhesion and hydrophobicity were improved. This improvement was credited to the water-borne fluoropolymer filling the porous structure and covering the pigment particles of the painted layer.
  • The micron cracks in ancient painted terracotta sculptures were successfully repaired using the fluoropolymer.

Applications of Microscopic Imaging Technology

  • Ultra-depth-of-field digital microscopic imaging technology provides high-resolution recording of the entire repair process, assisting in real-time visualization of micro-level operations.
  • Through this technology, the size and geometric spaces of the micron cracks are captured, which significantly assists in the repair process.

Significance and Conclusion

  • The methodology developed in this study provides a simple visualisation method to repair micron-scale cracks in painted artefacts, using modern fluoropolymer and ultra-depth-of-field digital microscopic imaging technology.
  • This technology could be instrumental in the future of preserving and restoring delicate historical artefacts, specifically those from the Western Han Dynasty.

Cite This Article

APA
Wang J, Li J, Chao X, Chen Y, Huang Y, Mai B, Li Y, Cao J. (2022). Microscopic Imaging Technology Assisted Dynamic Monitoring and Restoration of Micron-Level Cracks in the Painted Layer of Terracotta Warriors and Horses of the Western Han Dynasty. Polymers (Basel), 14(4), 760. https://doi.org/10.3390/polym14040760

Publication

Polymers
ISSN: 2073-4360
NlmUniqueID: 101545357
Country: Switzerland
Language: English
Volume: 14
Issue: 4
PII: 760

Researcher Affiliations

Wang, Juanli
  • Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
Li, Jiaxin
  • Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
Chao, Xiaolian
  • Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
Chen, Youlu
  • Cultural Relics Restoration Department, Xianyang Museum, Xianyang 712000, China.
Huang, Yongsheng
  • Cultural Relics Restoration Department, Xianyang Museum, Xianyang 712000, China.
Mai, Bingjie
  • Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
Li, Yuhu
  • Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.
Cao, Jing
  • Engineering Research Center of Historical and Cultural Heritage Protection, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China.

Grant Funding

  • No. 22102094 / the National Natural Science Foundation of China
  • GK 202103061 / the Fundamental Research Funds for the Central Universities
  • GK 202103058 / the Fundamental Research Funds for the Central Universities
  • No. 2021SF-457 / the Key Research and Development Program of Shaanxi Province, China

Conflict of Interest Statement

The authors declare no commercial or associative interest that represents a conflict of interest in connection with this work.

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Citations

This article has been cited 1 times.
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