16695
Accession Number
35842
Title Of Article Chaper
Influences of degraded conservation polymer materials on wall paintings
Title Of Journal Book
Sciences of Conservation and Archaeology
Volume
25
Issue
2
Pages
77-82
Collation
6 p. : ills.
Reference Bibliography
Includes bibliographic references
ISSN
1005-1538
Language Of Text
Chinese
Language Of Summary
Chinese;English
Literature Type
Serial
Literature Level
Analytic
Abstract
During the period of time from 1970 Lo 1990, large quantities of polymeric materials were applied to painted artifacts in museums or in situ to wall painting to stabilize and protect pigment layers. At that time, about 40 years ago, both suitable conservation materials and application techniques were undeveloped and limited. Now those aged protecting organic layers, such as acrylic polymer and Sanjia resin, have caused new problems for conservation. Challenges include gloss, yellowing, craquelure, flaking, etc. This paper lists a few cases that illustrate how degraded polymers have destroyed wall paintings and how they have had negative effects on wall paintings. Then, the concept of degradation was defined, illustrated and categorized into two groups. A situation falling into either category could be considered degraded protecting layer and must be removed for long – term protection of the mural paintings. Finally, effectiveness and long - time effect of gel cleaning and micro – emulsion cleaning techniques were discussed.
Keywords
degradation;conservation;material;cleaning;polymer;painting
pub_id
16695