Do you know how to protect rock and mineral specimens?
It is very important to protect rock and mineral specimens. Do you know how to protect rock and mineral specimens? Today I am going to introduce to you!
The first one: Reinforcing the rock and mineral specimen. The reinforcement method is to infiltrate and bond, and penetrate the mixture of reinforcement liquid, binder and solvent into the interior of the fossil through the capillary pores and cracks. The tools used are usually brushes, droppers, spray guns and vacuum pumps. But the main way is full immersion. The reinforcement solution should be deeply immersed into the specimen, and the best reinforcement effect can be obtained after the solvent evaporates.
The second: light-proof. The infrared rays in the light can cause the surface temperature of the specimen to rise and the humidity to drop, which changes the stress inside the fossil and accelerates the weathering. Ultraviolet rays have actinic and photolytic effects, especially for the strengthening agent composed of polymer materials, which has a strong destructive effect. At the same time, any visible light is harmful to the color of the material (ultraviolet rays are even worse). Therefore, conditional museum showrooms should be isolated from natural light and use lighting that can exclude infrared and ultraviolet rays. Cold light lamps without infrared rays have been widely used now. The protection of ultraviolet rays is generally by means of lampshades coated with ultraviolet absorbing materials or ultraviolet-proof plexiglass, glass, or coated with ultraviolet-proof transparent resin on ordinary glass.
The third: dustproof. In modern society, air pollution is serious, and harmful gases such as carbon dioxide and sulfur dioxide are pervasive. In addition, coal dust, soot, metal powder, pollen and sand mixed in the dust not only affect the health, but also bring great influence to the visit and study of rock and mineral specimens. Inconvenient, and under certain temperature and humidity conditions, the fossils will be corroded.
Fourth: moisture-proof. Too high or too low humidity is not good for the preservation of rock and mineral specimens. Humidity can also exacerbate the damage to specimens from dust, light, and microorganisms. At the same time, the control of humidity is inseparable from the influence of temperature, so it is necessary to grasp the appropriate temperature and humidity standards according to different specific situations, which must be considered when building showrooms and warehouses. In addition, it is also necessary to place desiccants (such as anhydrous calcium chloride, silica gel, quicklime, etc.) in some rock mineral specimen cabinets.