Method for preparing a simulated sample of marine-exposed wooden cultural relics

By boiling wood in alkali solution and using negative pressure permeable FeSO4 solution and oxidizing agent solution to prepare simulated samples consistent with the wooden cultural relics in the ocean effluent, the problem of the difference between simulated samples and actual cultural relics in the prior art is solved, and more accurate protection research is achieved.

CN115753296BActive Publication Date: 2025-06-03CHINA ACAD OF CULTURAL HERITAGE
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Patent Information

Application Number
CN202211602189.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-13
Publication Date
2025-06-03
Estimated Expiration
2042-12-13

AI Technical Summary

Technical Problem

The prior art is difficult to prepare simulated samples consistent with the wood degradation characteristics, sediment components and distribution morphology of marine effluent wood cultural relics, resulting in prone to deviations in protection research.

Method used

Boil healthy wood in boiling alkali solution to accelerate degradation. Then, osmotic FeSO4 solution in negative pressure to fully enter the wood, and then soak it with an oxidant solution to form a sediment distribution in the wood with a main layer of trivalent iron compounds and a main internal iron compounds.

Benefits of technology

The prepared simulated samples are consistent with the marine effluent wood cultural relics in terms of physical properties and chemical composition, and the components and distribution forms of the sediment are more in line with the actual situation, and are suitable for the protection and research of marine effluent wood cultural relics.

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Abstract

The present invention relates to a method for preparing a simulated sample of marine waterlogged wooden cultural relics, comprising: 1) After a healthy wood sample block is soaked in an alkali solution under negative pressure, the solution is heated to boiling, and deionized water is continuously added during this period to keep the volume of the solution unchanged; 2) The sample block is transferred to deionized water, heated to boiling, the water is removed at certain time intervals, deionized water is added and heating is continued until the color of the solution no longer changes significantly, the sample block is taken out and dried to a constant weight; 3) The sample block is put into the alkali solution, heated to boiling, and deionized water is continuously added during this period to keep the volume of the solution unchanged; the sample block is taken out and dried to a constant weight; 4) The sample block is immersed in an iron sulfate solution under negative pressure; 5) The sample block is taken out and rinsed with water to remove loose deposits on the surface; 6) The sample block is soaked in an oxidant solution to obtain a simulated sample.
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