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Effects of Water Exposure on the Mechanical Properties of Early Artists' Acrylic Paints

Published online by Cambridge University Press:  01 February 2011

Eric Hagan  and
Alison Murray
Eric Hagan
Affiliation:
Art Conservation Program, Queen's University, Kingston, Canada
Alison Murray
Affiliation:
Art Conservation Program, Queen's University, Kingston, Canada
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Abstract

The mechanical properties of early artist's acrylic paints were investigated under controlled aqueous additive leaching for the purpose of identifying changes caused by cleaning paintings with water. Strength and stiffness values were obtained using a tensiometer to collect stress-strain curves of paint films. The results were compared to those from similar experiments in which paint films were tested under various age, temperature, and relative humidity (RH) values. Strength and stiffness both increased with decreased temperature, decreased RH, increased age, and increased additive removal. The most significant impact on mechanical properties was caused by lowering temperature to the Tg region around 5°C. Dramatic changes in properties were caused by RH fluctuations; however, the magnitudes were negligible in comparison to those induced by low temperature. Removal of water-soluble additives produced a uniform increase in tensile strength and secant modulus at all RH values. The films were equally responsive to fluctuations in RH before and after additive leaching. In comparing the material properties across a wide range of conditions it is evident that the acrylic paints in this study were not significantly altered by the amount of water exposure involved in cleaning paintings.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 852 , 2004 , OO2.9
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

1. Steward, P. A., Hearn, J., and Wilkinson, M.C., Adv. Colloid Interface Sci. 86, 195 (2000).Google Scholar
2. Snuparek, J., J. Oil Col. Chem. Assoc. 55, 1007 (1972); 59, 19 (1976).Google Scholar
3. Ploeger, R.E., Shurvell, H.F., Hagan, E.W., and Murray, A., Postp. IRUG VI. (2004), In process.Google Scholar
4. Erlebacher, J.D., Brown, E., Mecklenburg, M.F., and Tumosa, C.S. in Materials Issues in Art and Archaeology III, edited by Vandiver, P.B., Druzik, J., Wheeler, G.S. and Freestone, I.C., (Mater. Res. Soc. Symp. Proc. 267, Pittsburgh, PA, 1992) pp. 359–370.Google Scholar