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Organic-inorganic composite material containing ac33/nanometer calcium hydroxide for reinforcement of ancient murals and reinforcement method

An inorganic composite material, calcium hydroxide technology, applied in pigment-containing coatings, paper coatings, preserved paintings, etc., can solve the problems of slow action, low reinforcement efficiency, low reinforcement strength, etc., to overcome slow action and cost. Low cost, simple preparation method and time-saving effect

Active Publication Date: 2021-01-05
NORTHWESTERN POLYTECHNICAL UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nano-calcium hydroxide-reinforced murals have low reinforcement strength and slow action, generally taking more than two weeks, so the reinforcement efficiency is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0017] The invention provides an organic-inorganic composite material containing AC33 / nano-calcium hydroxide for reinforcement of ancient murals and a preparation method thereof, wherein the mass ratio of AC33 and nano-calcium hydroxide is adjustable within the range of 5:1-1:1 , and the rest is ethyl acetate solution: it is mainly prepared by the following steps:

[0018] Step 1, the preparation of the organic-inorganic composite material containing AC33 / nano-calcium hydroxide: take commercially available AC33 solid and nano-calcium hydroxide powder and mix so that the mass ratio is 5:1-1:1, wherein the nano-calcium hydroxide The preparation refers to our patent: Chinese patent, patent number, 201711361358.7. Dissolving the mixture of AC33 solid and nano calcium hydroxide powder in ethyl acetate solution to form a solution with a mass fraction of 1%-8% is prepared to prepare an organic-inorganic composite material containing AC33 / nano calcium hydroxide.

[0019] Step 2, the ...

Embodiment 1

[0021] Weigh the commercially available AC33 solid and nano-calcium hydroxide powder and mix to make the mass ratio 5:1. The preparation of nano-calcium hydroxide refers to our patent: Chinese patent, patent number, 201711361358.7. The mixture of AC33 solid and nanometer calcium hydroxide powder is dissolved in ethyl acetate solution to form a mass fraction of 1%, 2%, 3%, 4%, and 5% to prepare an organic-inorganic composite containing AC33 / nanometer calcium hydroxide Material.

[0022] The ethyl acetate solution of the organic-inorganic composite material containing AC33 / nanometer calcium hydroxide was painted from low to high in order from low to high on the mural fragments obtained from a tomb in Xi'an. The amount of painting for each mass fraction is until the mural residue no longer absorbs the solution. The interval between brushing from one mass fraction solution to another mass fraction solution is subject to the evaporation of the ethyl acetate solution.

[0023] Tes...

Embodiment 2

[0026] Weigh the commercially available AC33 solid and nano-calcium hydroxide powder and mix to make the mass ratio 4:1. The preparation of nano-calcium hydroxide refers to our patent: Chinese patent, patent number, 201711361358.7. Dissolving the mixture of AC33 solid and nano calcium hydroxide powder in ethyl acetate solution to prepare the mass fraction of 1%, 3%, 5%, 7% to prepare an organic-inorganic composite material containing AC33 / nano calcium hydroxide.

[0027] The ethyl acetate solution of the organic-inorganic composite material containing AC33 / nanometer calcium hydroxide was painted from low to high in order from low to high on the mural fragments obtained from a tomb in Xi'an. The amount of painting for each mass fraction is until the mural residue no longer absorbs the solution. The interval between brushing from one mass fraction solution to another mass fraction solution is subject to the evaporation of the ethyl acetate solution.

[0028] Test Results:

[0...

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Abstract

The invention relates to an AC33 / nano calcium hydroxide containing organic inorganic composite material for reinforcing ancient murals and a reinforcing method. AC33 and nano calcium hydroxide are dissolved in an ethyl acetate solution. The preparation method is very simple and time-saving. The prepared mixed solution is very stable and will not precipitate for half a year, and the cost is low. The result of a mural reinforcing test shows that the composite material can play a mural reinforcing effect within 12 hours, nano calcium hydroxide is carbonized into calcium carbonate, a film formed by AC33 is broken down, and the influence of water steam exchange between murals and the environment is small. The shortages of using AC33 or nano calcium hydroxide to reinforcing a mural are overcome.Compared with the reinforcing effect of AC33 or nano calcium hydroxide, the reinforcing strength is improved by using AC33 and nano calcium hydroxide together. The composite material has a great industrial production prospect and can be used to reinforce other cultural relics such as stone relics, and the like.

Description

technical field [0001] The invention belongs to the technical field of ancient mural protection materials, and relates to an organic-inorganic composite material containing AC33 / nanometer calcium hydroxide for reinforcement of ancient murals and a reinforcement method. Background technique [0002] For five thousand years in China, our ancestors created a splendid Chinese civilization. Murals are important cultural relics that inherit the civilization of our ancestors, and are of great significance to the study of the development of our civilization. However, because the murals have been buried in the ground for a long time and are attacked by moisture and salt, the white ash layer will fail, and various diseases will appear, such as brittle alkali, carapace, hollowing, etc., which urgently need to be repaired. [0003] In order to repair the murals with the above various diseases, researchers have developed various protective materials. Generally speaking, mural protectio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D7/61D21H19/38D21H19/58B44D7/00
CPCB44D7/00C08K2003/265C08K2201/011C09D133/00C09D7/61C09D7/67D21H19/385D21H19/58C08K3/22
Inventor 李炫华严静朱金萌董文强赵西晨魏秉庆
Owner NORTHWESTERN POLYTECHNICAL UNIV
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