Hydrophilic stony cultural relic nano protective agent and preparation method thereof

Abstract

The invention discloses a hydrophilic stony cultural relic nano protective agent and a preparation method thereof. The hydrophilic stony cultural relic nano protective agent is prepared from the following raw materials: nanosilicon dioxide, nano silver, propylene glycol, a fluorine surfactant, a water-based wetting agent, a water-based dispersing agent, a water-based defoaming agent, a preservative and water. The hydrophilic stony cultural relic nano protective agent can be bonded with a porous surface of a stony material, and a firm, durable, transparent, waterproof and oil-proof protective film is formed inside the surface of the stony material and is taken as a water-based permeable sealant for the porous surface of a cultural relic made from the stony material. The protective agent disclosed by the invention has excellent waterproof, antifouling and oil-proof properties, can effectively prevent the surface of the stony material from being polluted by foreign matters, and the surface can be cleaned easily; the protective agent has good air permeability, and steam is permeable; the protective agent has good weather resistance and uvioresistant function and can effectively preventthe surface of cultural relics such as the stony material and pottery from being weathered; and a coating is transparent, and appearance characteristics of the surface of the stony material are not changed.

Description

technical field

[0001] The invention belongs to the field of protection of cultural relics, and in particular relates to a nano-protective agent for hydrophilic stone cultural relics and a preparation method thereof. Background technique

[0002] Stone cultural relics refer to all cultural relics processed with natural stones as raw materials, which are basically divided into three categories: stone art cultural relics (there are Dunhuang Mogao Grottoes in my country, Yungang Grottoes in Datong, Shanxi, and Longmen Grottoes in Luoyang, Henan). , Dazu Rock Carvings in Chongqing, etc. are included in the World Cultural Heritage List), stone architectural relics, stone tools and utensils. Due to the long-term erosion of rain, snow, moisture, groundwater and soluble salt, the stone cultural relics and stone buildings preserved in the open air are seriously weathered, and many of them are in an endangered state. The restoration and protection of these cultural relics requires the...

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