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Citation: Yujia Luo, Yunpeng Qi, Huiping Xing, Yuhu Li. The Use of Viscosity Method for Predicting the Life Expectancy of Xuan Paper-based Heritage Objects[J]. University Chemistry, ;2024, 39(8): 290-294. doi: 10.3866/PKU.DXHX202401037 shu

The Use of Viscosity Method for Predicting the Life Expectancy of Xuan Paper-based Heritage Objects

Engineering Research Center of Historical Cultural Heritage Conservation, Ministry of Education, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an 710119, China

Received Date: 14 January 2024
Revised Date: 6 March 2024

An experiment designed to predict the lifetime of the Xuan paper using the viscosity method is introduced in the form of group collaboration. This experiment is targeted at junior students who majored in conservation of cultural relics, with eight groups involved. Using a jacketed viscometer, the intrinsic viscosity of the two types of undegraded and degraded Xuan papers was determined, and the corresponding degree of polymerization (DP) was calculated. Then data were collected from all groups, and degradation rates of the papers were then calculated, which were then used to predict the life expectancy of the Xuan papers. The aim was to enhance students’ teamwork skills, practical experience, problem-solving abilities, data analysis, and scientific research capabilities, while also guiding them to apply their chemical knowledge to practical conservation for paper-based objects.
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