Surface bionic protection method of stone material and lithical cultural relic

Abstract

The present invention discloses surface bionic protection method of stone material and lithical cultural relic. The protection method includes cleaning the surface with detergent comprising deionized water or organic solvent, treating the surface with biological amphibpatic functional pre-treating liquid, and crystallizing supersaturated calcium oxalate solution on the surface to form fine and compact surface protecting calcium oxalate film. The present invention has the advantages of wide applicable range, excellent compatibility to stone material, high weather resistance, raised corrosion resistance, improved hydrophobicity, firm combination with base stone material and no influence on the outer appearance, color and hand feeling of original stone material.

Description

technical field [0001] The invention relates to a surface protection method for stone materials and stone cultural relics. Background technique [0002] Large-scale stone carvings, stone carvings, monuments and other stone components, as well as many stone monuments, are mostly exposed to the natural weathering environment, especially the environmental pollution and acid rain brought about by modern industrial development are constantly eroding them. Although the most fundamental measure is to control the environment, it is impossible to completely remove environmental pollution at once, and it is also impossible to transfer those stone monuments and buildings that are prone to erosion to places without pollution, so the method of surface treatment is used Protecting stone is the easiest way to slow down erosion. [0003] Solid paraffin is one of the earliest stone surface protection materials used. In the first century BC, there was a record of using wax to repair the weat...

AI Technical Summary

Problems solved by technology

[0003] Solid paraffin is one of the earliest stone surface protection materials used. In the first century BC, there was a record of using wax to repair the weathered stone of buildings. However, it absorbs dust, is easy to yellow, and is difficult to penetrate into the stone to form a durable protection; inorganic stone protection Materials were also widely used before the nineteenth century, for example, lime water, barium hydroxide or phosphate, etc. Many cases show that due to the crystal expansion formed by the contained salt, the use of inorganic protective agents intensifies the damage of stone. Weathering; modern organic polymers, such as epoxy resins, acrylic resins, especially silicone or organic fluorine polymers, have been used for surface protection of stone cultural relics for more than 40 years, but the protective effect is still not complete satisfactory

The main problems are: 1) The actual effective life of organic polymer protective materials in the wild is generally only a few years, up to 20 or 30 years, while the life expectancy of stone cultural relics is much longer