why is science important to art conservation

7/27/2019 Why is Science Important to Art Conservation

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Renata Albores Mireles #3 Alondra Jazo Arvizo #16

Kariana Cabello Rgules #5 Vctor Smith Gmez #22

Mariano del Toro Barbosa #7 Sergio Yez Barragn #24


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Oxygen

Air pollutants

Dust

Soot Fungi

Chemical reactions


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In oil-paint, the vehicle used to spread the coloredpigments is a drying oil.


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When spread in thin layers, the unsaturated oilinteracts with oxygen in the air and polymerizes at areasonable rate, to form a solid surface that is resistantto chemical attack, thus helping to fix and protect thepigment.


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To saturate and enhance the colors, oil paintings aregenerally varnished.


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Exposing the varnish to ultraviolet light accelerates theyellowing and cracking process.

Synthetic resins with the same physical properties as

natural resins, but with the advantage of less yellowingand cracking, have been developed and are used inconservation laboratories


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Many pollutants in the atmosphere are majorcontributors to stone decay.


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Conservators suggest that treatment should includecleaning agents, consolidants, water repellents,

biocides, mortars, and coatings


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Light is another harmful factor to many paintings andartifacts


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Because light is such a powerful enemy of artifacts,museum lighting is controlled and free of UV

radiation; hence, windows are glazed with a UVabsorbing plastic shield.


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Variations in temperature and humidity are also thebasic cause of cracks in tempera paint on wood panels

and wooden furniture.


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Humidity and temperature in museums should becontrolled.


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Microscopic Analysis


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Cross-sectional Analysis


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Ultraviolet Radiation


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Infrared Reflectography


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Infrared Spectroscopy


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Laser Raman Spectroscopy


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Autoradiography


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In order to preserve one particular painting by GeorgiaOKeeffe, Black Hollyhock, Blue Larkspur.


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Museum of Art in New York City, placed it in a glassbox containing silica-gel pellets. Silica gel is a

desiccant that absorbs moisture from the surroundingatmosphere.


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The Acropolis in Athens is a good example of thedramatic effect of pollution on marble.


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Conservators had to remove the iron rods and replacethem with titanium rods.

Conservators used titanium because it is a hard, light,and nonrusting metal.

Only gasoline with low sulfur content is allowed asheating and car fuel; and planes and cars are routedaway from the area around the Acropolis.


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Science is very important to art conservation as itrepresents the basis of this activity.

Science provides the necessary tools, methods andtechniques to restore and protect a work of art.


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Kabbani, R. (1997). Conservation A CollaborationBetween Art and Science. Retrieved August 30, 2013,from THE CHEMICAL EDUCATOR:http://chemeducator.org/sbibs/s0002001/spapers/21rk

897.pdf

why is science important to art conservation

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