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Gel rust remover for aerugo of gilding layer

A technology of rust remover and gel, applied in the field of cultural relics protection

Active Publication Date: 2015-02-18
SHAANXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defects existing in the existing methods for cleaning the gilt layer, and to provide a gilt layer that is simple to prepare, easy to control without flowing during operation, easy to remove, has no environmental pollution, and will not cause damage to the gilt layer. Gold layer patina gel rust remover

Method used

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  • Gel rust remover for aerugo of gilding layer
  • Gel rust remover for aerugo of gilding layer
  • Gel rust remover for aerugo of gilding layer

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Heat 50g of distilled water to 85-90°C, add 1.0g of polyvinyl alcohol 1799, stir until the polyvinyl alcohol 1799 is completely dissolved, stop heating, cool the solution to 55°C, add 4.0g of Carbomer 940 by a small amount After adding Carbomer 940, it was observed that there will be a small amount of Carbomer agglomeration, and then continue to stir until the aqueous solution becomes transparent, and then add 0.05g triethanolamine, 0.01g borax, 0.01g formic acid, 0.01 g cysteine, cooled to room temperature, added to 100g with distilled water, to obtain the gilt layer patina gel rust remover. Depend on figure 1 It can be seen that the gel rust remover has a typical three-dimensional network pore structure. Measured by the NDJ-8S rotational viscometer, its viscosity at the 3RPM speed of the No. 4 rotor is too large, beyond the range of the NDJ-8S rotational viscometer, and cannot be measured.

Embodiment 2

[0031] Heat 50g of distilled water to 85-90°C, add 1.0g of polyvinyl alcohol 1799, stir until the polyvinyl alcohol 1799 is completely dissolved, stop heating, cool the solution to 55°C, add 1.0g of Carbomer 940 in small amounts After adding Carbomer 940, it was observed that there will be a small amount of Carbomer agglomeration, and then continue to stir until the aqueous solution becomes transparent, and then add 0.05g triethanolamine, 0.01g borax, 0.01g formic acid, 0.01 g cysteine, cooled to room temperature, added to 100g with distilled water, to get the gilt layer patina gel rust remover (see figure 2 ). Measured by the NDJ-8S rotational viscometer, its viscosity at the 3RPM speed of No. 4 rotor is 594000mPa·s.

Embodiment 3

[0033] Heat 50g of distilled water to 85-90°C, add 1.0g of polyvinyl alcohol 1799, stir until the polyvinyl alcohol 1799 is completely dissolved, stop heating, cool the solution to 55°C, add 2.0g of Carbomer 940 by a small amount After adding Carbomer 940, it was observed that there will be a small amount of Carbomer agglomeration, and then continue to stir until the aqueous solution becomes transparent, and then add 0.05g triethanolamine, 0.01g borax, 0.01g formic acid, 0.01 g cysteine, cooled to room temperature, added to 100g with distilled water, to get the gilt layer patina gel rust remover (see image 3 ). Measured by the NDJ-8S rotational viscometer, its viscosity at the 3RPM speed of the No. 4 rotor is 1312000mPa·s.

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Abstract

The invention discloses a gel rust remover for aerugo of a gilding layer. The gel rust remover comprises the following components by weight percentage: 1.0-4.0% of carbomer 940, 1.0-4.0% of polyvinyl alcohol 1799, 0.01-0.05% of weak base, 0.005-0.015% of borax, 0.005-0.015% of weak acid, 0.005-0.015% of cysteine and the balance of water. The rust remover gel is colorless and transparent, is of acidity, and has the characteristics of water-retaining property and slow release property. A cultural relic contact type green cleaning procedure can be realized by controlling the release speed of cleaning components, Cu (I) and Cu (II) can be cleaned away at the same time, aerugo, such as ruby copper, malachite and azurite, covering the gilding layer can be effectively removed, the surface of a culture relic is free of pollution, and the gel rust remover is suitable for cleaning complex surfaces. The preparation process and use method of the gel rust remover are simple, corrosion damage caused by the fact that the rust remover is diffused on the gilding layer during wet cleaning can be reduced, and the principle requirements of minimum involvement and no appearance change of cultural relics are met.

Description

technical field [0001] The invention belongs to the technical field of cultural relics protection, and in particular relates to a gel cleaning agent for cleaning copper rust of bronze wares, in particular to a gel cleaning agent capable of removing the copper rust of a gilt layer. Background technique [0002] The gilt craft is one of the traditional metal processing and decoration techniques summed up and created by the ancient Chinese working people in production and labor. It is to apply gold amalgam mixed with gold and mercury on the surface of copper ware, and heat it to evaporate the mercury, so that the gold is firmly attached to it. The technology that does not peel off the surface of copperware. Although gold forms an intermetallic compound (gilt layer) itself, it will not corrode and rust, but the surface of the utensils is covered with a rust layer derived from the metal substrate, such as gilt bronzes. The rust layer on the gilt layer greatly affects the appearan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/10
CPCC23G1/103
Inventor 金普军阮方红杨小刚叶琳刘凯强
Owner SHAANXI NORMAL UNIV
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