Application of waterborne epoxy resin to protection of historic tombs

Abstract

The invention relates to application of a waterborne epoxy resin to the protection of historic tombs. The technical scheme is that a method comprises the following steps of: mixing initial emulsion of the waterborne epoxy resin and modified amine waterborne curing agent in a weight ratio of 3:1, stirring uniformly to obtain a stock solution, injecting water into the stock solution, and stirring uniformly to obtain waterborne epoxy emulsion. The disadvantages that the volatility of the waterborne epoxy resin is strong, the historic tombs collapse due to the rupture of lower-part wood members caused by the increase of the weight of charcoal and the like existing in the prior art are overcome. In the invention, water is taken as a dispersion medium, organic solvents are not contained or the content of volatile organic compounds is low, and the environments of the historic tombs are not polluted; and the waterborne epoxy resin can be well adhered to wood members, rock walls and bark, the curing time is reasonable, the higher crosslinking density is ensured, and the appearances of cultural relics are not changed. The process is simple, convenient to operate, high in reliability and low in cost; and the waterborne epoxy resin has a broad applicable range and a better effect.

Description

technical field [0001] The invention relates to the technical field of cultural relic protection, in particular to the application of water-based epoxy resin in the protection of ancient tombs. Background technique [0002] After the archaeological excavation of ancient tombs, due to the great changes in the environment of the tombs, the burial utensils and structures of many important tombs are deteriorating and constantly being destroyed. For example, the surface of wooden components at the bottom of the tomb is decayed, the charcoal layer collapses, the bark layer is fractured and brittle, and the surface of the rock wall is weathered, etc. It is imperative to rescue and protect them. Reinforcement of these cultural relics with appropriate materials and techniques can effectively prevent further deterioration. [0003] Before the present invention, people have many protection methods to the wooden components unearthed in ancient times, such as water glass, borax, natural...

AI Technical Summary

Problems solved by technology

However, in order to ensure the archaeological information and the structure of the tomb, it is not suitable to take out the wooden components in the tomb as a whole for soaking and strengthening with traditional wood reinforcement materials; the rock wall of the tomb is made of earth and stone, and the surface is relatively loose. After the acrylic resin is subjected to surface weathering treatment, the surface gloss of the rock wall is high, and it is highly volatile during and after the treatment, polluting the tomb environment; after the charcoal is bonded with paraffin wax, the strength of the charcoal layer is still relatively low. Weak, and greatly increase the weight of charcoal, increase the pressure on the bottom wooden member, may cause the lower wooden member to break and collapse

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