Solution for protection of stone cultural relics, its preparation method and application

Abstract

The invention discloses a barium hydroxide solution for protecting stone cultural relics, a preparation method and application thereof, and belongs to the field of stone cultural relic protection. Dissolving barium salt, organic base, penetrating agent and perfluorinated coupling agent as solute in a mixed solvent of isopropanol and deionized combination to obtain a barium hydroxide solution. In the present invention, the water-repellent and oleophobic treatment of the stone cultural relics by the perfluorinated coupling agent reduces the erosion of the stone cultural relics by acid rain, and the cross-linking effect produced by it can strengthen the weathered stone cultural relics; The barium salt in the cracks of stone cultural relics reacts with carbon dioxide to form barium carbonate, which can strengthen and fill the gaps; the added penetrating agent can make the barium salt penetrate deeper into the stone cultural relics. The invention has the characteristics of safety, high efficiency, simple process, large-scale application potential and the like, and is suitable for the fields of protection of stone cultural relics and the like.

Description

technical field [0001] The invention belongs to the field of protection of stone cultural relics, in particular to a barium hydroxide solution for protection of stone cultural relics, its preparation method and application. Background technique [0002] Due to human factors and natural factors, stone cultural relics must suffer from weathering and deterioration to varying degrees, especially open-air stone cultural relics are more severely weathered, and reinforcement can improve the stability of stone cultural relics and prolong the life of cultural relics. Among them, inorganic reinforcing materials were widely used before the nineteenth century. Most inorganic reinforcing agents use the salt in the solution to condense in the stone pores or chemically react with the stone to fill the stone pores to form a barrier or replacement layer. The commonly used inorganic reinforcement materials in the world are: lime water, barium hydroxide, alkaline earth silicate and fluorosilic...

AI Technical Summary

Problems solved by technology

At the same time, it contains hydroxyl groups, ether bonds, amino groups and other polar genes. It has high adhesion to stone cultural relics and the effect is ideal, but it will change color after a long time of use.

Acrylic resin is widely used in the coating industry due to its good chemical stability, heat resistance, and weather resistance, but its poor water resistance limits its application in the protection of stone cultural relics

Among the organic polymers used to protect stone cultural relics, silicone resin has relatively good permeability, water repellency and weather resistance, so it not only has a reinforcing effect, but also has waterproof performance, but it needs high temperature curing, which limits its application

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