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Characterisation and durability of contemporary unsized Xuan paper

Cellulose (London), 2021, Vol.28 (2), p.1011-1023 [Peer Reviewed Journal]

The Author(s) 2020 ;The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 0969-0239 ;EISSN: 1572-882X ;DOI: 10.1007/s10570-020-03554-3

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  • Title:
    Characterisation and durability of contemporary unsized Xuan paper
  • Author: Luo, Yujia ; Cigić, Irena Kralj ; Wei, Quan ; Strlič, Matija
  • Subjects: Bioorganic Chemistry ; Bleaching ; Ceramics ; Chemistry ; Chemistry and Materials Science ; Composites ; Conservation ; Degradation ; Degree of polymerization ; Demography ; Durability ; Glass ; Material properties ; Natural Materials ; Organic Chemistry ; Original Research ; Phloroglucinol ; Physical Chemistry ; Polymer Sciences ; Production methods ; Raw materials ; Sustainable Development ; Viscometry ; X ray fluorescence
  • Is Part Of: Cellulose (London), 2021, Vol.28 (2), p.1011-1023
  • Description: In China, Xuan paper has been the paper of choice as artwork support and for conservation, for several centuries. However, little is known about its material properties, especially given the many grades of sized and unsized Xuan paper. In addition, there is a lack of information on its degradation. In this research, a selection of contemporary unsized Xuan papers was investigated, representing diverse raw materials. Seven out of twelve contemporary unsized Xuan papers were determined to be approximately neutral and contain > 2% alkaline reserve, indicating good durability. Viscometry was used to determine the degree of polymerisation (DP) as none of the samples gave significant reactions to the phloroglucinol spot test. The average DP of ten contemporary unsized Xuan papers is ~ 1700, excluding two papers that have presumably been sun-bleached, and that exhibit significantly lower DP. Using X-ray fluorescence, it can be demonstrated that Ca and Si are the dominant elements and interestingly, Ca content is directly correlated with ash content and with alkaline reserve. Accelerated degradation was performed at two sets of environmental conditions, i.e. 90 °C, 30% RH and 60 °C, 70% RH, and the established degradation rates agreed with the Collections Demography model of paper degradation meaning that degradation of Xuan papers proceeds in the same way as other types of paper. This research gives fundamental insights into contemporary unsized Xuan papers, which exhibit good stability during accelerated degradation despite the low starting DP in the context of the samples used in this study. Our findings may inform methods of Xuan paper production, selection of Xuan paper for conservation purposes, as well as preventive conservation of Xuan paper-based artefacts.
  • Publisher: Dordrecht: Springer Netherlands
  • Language: English
  • Identifier: ISSN: 0969-0239
    EISSN: 1572-882X
    DOI: 10.1007/s10570-020-03554-3
  • Source: SpringerOpen
    ProQuest Central

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