Water-resistant transparent coating for protection of cultural relics
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A technology for transparent coating and cultural relics protection, applied in the direction of coating, can solve the problems of easy foaming of paint film, decreased adhesion, floating sand, etc., to achieve the effect of not easy to wrinkle, improve water resistance, and good transparency
Inactive Publication Date: 2018-01-26
SHENYANG INSTITUTE OF CHEMICAL TECHNOLOGY
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However, traditional acrylic resin seals the substrate and forms a dense paint film, which cannot release moisture. With the increase of moisture pressure on the wall, the paint film is prone to foaming, cracking and falling off due to dew condensation and other reasons, resulting in long-term moisture accumulation. It is easy to cause floating sand and decrease the cohesive force
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example 1
[0024] The stock solution of this coating is prepared by adopting the following mass ratio:
[0025] Cardanol 100 parts
[0026] Benzyl hexachloride 5 parts
[0027] Solvent dichloromethane 100 parts
[0028] Sodium bicarbonate 8 parts
[0029] After mixing the above materials evenly, place it at room temperature for 2 hours, and then remove the solvent in a vacuum to obtain a water-resistant transparent coating glue that can be used for cultural relics protection.
example 2
[0031] The stock solution of this coating is prepared by adopting the following mass ratio:
[0032] Cardanol 100 parts
[0033] 3 parts of benzyl hexafluoride
[0034] 180 parts of solvent dimethylformamide
[0035] Acid removal agent triethylamine 8 parts
[0036] After mixing the above materials evenly, place it at room temperature for 2 hours, and then remove the solvent in a vacuum to obtain a water-resistant transparent coating glue that can be used for cultural relics protection.
example 3
[0038] The stock solution of this coating is prepared by adopting the following mass ratio:
[0039] Cardanol 100 parts
[0040] Benzyl hexabromide 8 parts
[0041] Solvent dichloroethane 120 parts
[0042] Acid remover ammonia 10 parts
[0043] After mixing the above materials evenly, place it at room temperature for 2 hours, and then remove the solvent in a vacuum to obtain a water-resistant transparent coating glue that can be used for cultural relics protection.
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Abstract
A water-resistant transparent coating for the protection of cultural relics, which relates to a water-resistant coating. The invention uses a compound of cardanol and hexachloro(fluorine, bromide) benzyl as a base material, and forms an anti-aging coating on the surface of cultural relics to be protected through an autoxidation reaction. Water resistant clear coat. With this restoration method, the transparency of the coating enables complete protection of the same area several times. The raw materials used are non-toxic and harmless, and have good vapor permeability, weather resistance, permeability and adhesion. The raw materials of this product are easy to obtain, the production method is simple, the manual operation is convenient, it meets the requirements of environmental protection and use, and has broad application prospects. The product of the invention can be used for the protection of the surface of cultural relics, especially those black or colored cultural relics made of natural pigments.
Description
technical field [0001] The invention relates to a water-resistant coating, in particular to a water-resistant transparent coating for cultural relics protection. Background technique [0002] China is an ancient and civilized country with many historical and cultural heritages, among which a large number of lacquerware and other cultural relics have been unearthed in recent years. Many beautifully crafted ancient lacquerware can keep their brilliance as new even if they are buried in wet underground or dry desert for a long time. This is because the air is too dry, the lacquerware is prone to breakage, and the humidity is too high, it is easy to deform and peel off the paint. Therefore, it is imminent to develop a water-resistant and transparent coating to protect these cultural relics. [0003] Raw lacquer is the natural sap cut from lacquer trees, mainly composed of urushiol, laccase, gum and water. Using it as a coating has special functions such as moisture resistance,...
Claims
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Application Information
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