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A method for dehydration and shaping of water-saturated lacquer wooden cultural relics

A technology for woodware and cultural relics, which is applied in the field of dehydration and shaping of saturated lacquered woodware cultural relics. It can solve the problems of poor permeability of polymer fillers and environmental and human hazards, and achieve low safety protection requirements, shorten the dehydration cycle, and easily obtain materials. Effect

Active Publication Date: 2020-08-18
浙江省博物馆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is generally used in conjunction with methods such as polymer impregnation, so it will also be affected by the poor permeability of polymer fillers.
The main deficiencies of the above-mentioned four types of lacquer woodware dehydration setting methods widely used at present: (1) the permeability of the filler in the lacquer woodware cultural relics, (2) the selection of the solvent of the dehydration setting system is harmful to the actual operability and the environment and the human body Sex has a direct relationship

Method used

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  • A method for dehydration and shaping of water-saturated lacquer wooden cultural relics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Get 50g 2-acrylamido-2-methylpropylbenzene sulfonate sodium and 0.5g 2,2'-azobis[2-(2-imidazolin-2-yl) propane] hydrochloride in 500g pure Dissolve in water and measure its density. Take an ancient lacquerware sample with a length, width, and height of about 3cm*3cm*3cm, immerse it in the prepared solution to be polymerized, seal the container and place it at room temperature below 30°C. Test the density of the soaking solution every 5 days, and when the density value drops by more than 10%, configure the solution to be polymerized according to the concentration of the solution to be polymerized and repeatedly soak the wood sample. Repeat the above process until the density value of the two consecutive soaking solutions drops by no more than 10% of the density of the original solution.

[0027] Put the soaked ancient lacquerware sample and the solution together in a constant temperature water bath, set the temperature at 45°C, and heat for about 8 hours. Then the reac...

Embodiment 2

[0031] 10 g of sodium vinylbenzene sulfonate, 50 g of acrylamide and 1.5 g of 4 4'-azobis(4-cyanovaleric acid) were dissolved in 500 g of purified water, and their density was measured. Take samples of ancient lacquerware, immerse them in the prepared solution to be polymerized, seal the container and place it at room temperature below 30°C. Test the density of the soaking solution every 10 days, and when the density value drops by more than 10%, configure the solution to be polymerized according to the concentration of the solution to be polymerized and repeatedly soak the wood sample. Repeat the above process until the density value of the two consecutive soaking solutions drops by no more than 10% of the density of the original solution.

[0032] Put the soaked ancient lacquerware sample and the solution together in a constant temperature water bath, set the temperature at 70°C, and heat for about 4 hours. Then the reaction solution was taken out of the constant temperatur...

Embodiment 3

[0036] Take 10g N-isopropylacrylamide, 10g N-methylolacrylamide, 10g N-vinylpyrrolidone, 10g 2-acrylamido-2-methylpropyl carboxylate and 2.0g 2,2'-iso Nitrogen (2-methylpropylamidine) dihydrochloride was dissolved in 500 g of purified water, and its density was measured. Take samples of ancient lacquerware, immerse them in the prepared solution to be polymerized, seal the container and place it at room temperature below 30°C. Test the density of the soaking solution every 10 days, and when the density value drops by more than 10%, configure the solution to be polymerized according to the concentration of the solution to be polymerized and repeatedly soak the wood sample. Repeat the above process until the density value of the two consecutive soaking solutions drops by no more than 10% of the density of the original solution.

[0037] Put the solution for soaking the ancient lacquerware samples into a constant temperature water bath, set the temperature at 55°C, and heat for a...

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Abstract

The invention belongs to the technical field of cultural relic protection and repair, and particularly relates to a dehydration setting method for waterlogged lacquer woodware cultural relics. The technology that water-soluble polymer monomers are polymerized after being infiltrated and the freeze drying technology are combined to conduct dehydration setting treatment, and in the method, the wholedehydration setting process is completed by using an environment-friendly water system, so that the requirements for personnel security protection in the actual operation process are low; alkene double-bond polymerizable monomers which have been widely used on the market are adopted to be polymerized to form filler of the lacquer woodware cultural relics, the materials are easy to obtain, and thereaction conditions are simple; the setting effect of the waterlogged lacquer woodware cultural relics can be correspondingly adjusted through the types of the water-soluble alkene double-bond polymerizable monomers, the monomer ratio and other factors, so that different setting requirements generated due to the individuality and the particularity of each unearthed relic are met; the freeze drying technology is adopted so that the setting effect of the waterlogged lacquer woodware cultural relics can be maintained, and moreover, the dehydration period can be shortened.

Description

technical field [0001] The invention belongs to the technical field of protection and restoration of cultural relics, and in particular relates to a dehydration and shaping method for saturated lacquer wooden cultural relics. Background technique [0002] The use of woodware by humans can be traced back to the primitive period, and then developed into wood-bodied lacquerware and other utensils, and its production technology has been continuously improved and changed with the development of history. Therefore, ancient lacquered woodware is one of the precious material materials for studying the ancient history of our country. The main components of ancient lacquered woodware are composed of cellulose, hemicellulose, and lignin. They have been buried underground for a long time and have been corroded by groundwater for a long time. Their internal molecular structure is decomposed and completely saturated with water. After unearthed cultural relics in a saturated state, affect...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M3/00B27K3/15B27K5/04B27K3/50
CPCB27K3/15B27K3/50B27K5/04B27K2240/70B27M3/00
Inventor 王飞
Owner 浙江省博物馆