Rapid Detection Method Of Museum Exhibition Materials

Cultural relics are wealth left by the ancients, which arenon-renewable resources， and have very high values. Therefore theyare very precious. In order to protect these precious wealth better, thecountry keep cultural relics in the museum when they are unearthed。But the museum exhibit case are relatively closed and narrow, whichlimit the diffusion of the corrosive gases released by collection exhibitionmaterials and decoration materials. So sometimes the concentration ofthe pollution gas indoor is higher than the outside, which keep theartifacts in high pollution environment unwillingly and lead tounrecoverable damage of artifacts. Thus the environment pollutions ofmuseum draw the researchers’ attention all over the world.The standard Oddy method and the improvement of the standardOddy method were all conducted in high concentration of corrosivegases. In our work, the standard Oddy method was improved byintroducing the Quartz crystal microbalance. By using the ultra highsensitivity of quartz crystal microbalance, the damage of the corrosivegases to artifacts could be in situ quantitatively detected.Thedetection limit was greatly reduced to the1.44%of the standard Oddymethod.This concentration approached to the real situation of themuseum environment. The Corrosion rate was greatly improved by theuse of Ag nano-coating, compared with the silver metal piece in Oddymethod, The test time were further shortened to4.5d. The standardOddy method was conducted in the humidity of100%, while differentenvironment of humidity of10%,55%and100%were used for test ofcorrosion rate of Ag nano-coating in our work.