The Influence of Loading, Temperature and Relative Humidity on Adhesives for Canvas Lining

Hans Poulis, Kate Seymour, Yasmine Mosleh

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

The structural conservation of canvas paintings may require lining, a process in which a secondary canvas is adhered to the reverse of the damaged original canvas to provide additional support. Choosing the optimum adhesive or canvas for lining is challenging. Comprehensive data on thermal and mechanical behaviour of different adhesives to enable the conservator to make informed choices for their treatment purposes is scarce. Hence, in this study, four prevalently used adhesives for lining are chosen and their thermal and mechanical behaviour, such as the glass transition and melting temperatures, static lap shear strength and creep resistance, are compared. Thermal properties of the different adhesives are characterised using differential scanning calorimetry (DSC). Furthermore, the effect of temperature cycles (25, 35, and 45°C at a fixed relative humidity of 48%) on the creep behaviour of lined canvases is evaluated. Lap shear and creep experiments are performed on lined canvas mock-ups. The four adhesives tested are: studio formulations of an animal glue-wheat flour paste, as well as a beeswax-damar resin mixture; a patented formula based on an ethylene vinyl acetate copolymer mixture (BEVA 371 O.F.™); and a mixture of two industrially produced acrylic copolymers (Plextol™ D541 and K360). The results demonstrate the remarkable effect of temperature on the creep behaviour of lined canvases, which can be related to their thermal stability.

Original languageEnglish
Title of host publicationIOP Conf. Series: Materials Science and Engineering
Subtitle of host publicationIOP publishing HERITECH2020
EditorsAnete Ashton
Publisherjournal of physics: conference series
Number of pages8
Volume949
Edition1
DOIs
Publication statusPublished - 2020
Event2nd International Conference Florence Heri-Tech: The Future of Heritage Science and Technologies, HERITECH 2020 - Virtual, Online
Duration: 14 Oct 202016 Oct 2020

Publication series

NameIOP Conference Series: Materials Science and Engineering
ISSN (Print)1757-8981

Conference

Conference2nd International Conference Florence Heri-Tech: The Future of Heritage Science and Technologies, HERITECH 2020
CityVirtual, Online
Period14/10/2016/10/20

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