CN112208258A - Method for dewatering and reinforcing water-saturated paint woodware in semi-solid mode - Google Patents
Method for dewatering and reinforcing water-saturated paint woodware in semi-solid mode Download PDFInfo
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- CN112208258A CN112208258A CN202011078140.2A CN202011078140A CN112208258A CN 112208258 A CN112208258 A CN 112208258A CN 202011078140 A CN202011078140 A CN 202011078140A CN 112208258 A CN112208258 A CN 112208258A
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- semi
- cyclodextrin
- water
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- reinforcing agent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
- B44C5/00—Processes for producing special ornamental bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/52—Impregnating agents containing mixtures of inorganic and organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K5/00—Treating of wood not provided for in groups B27K1/00, B27K3/00
- B27K5/04—Combined bleaching or impregnating and drying of wood
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/005—Drying solid materials or objects by processes not involving the application of heat by dipping them into or mixing them with a chemical liquid, e.g. organic; chemical, e.g. organic, dewatering aids
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- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a method for dehydrating and reinforcing saturated water paint wooden ware in a semi-solid mode, and relates to a method for dehydrating and reinforcing the cultural relics of the saturated water paint wooden ware obtained by archaeological excavation. The semi-solid reinforcing agent mainly comprises the following components: 0.2-1% of starch-acrylic acid copolymerized water-absorbent resin, 9-11% of cyclodextrin, 0.2-2.1% of dodecylbenzene sulfonic acid, 0.1-0.2% of calcium chloride and 87-89% of 30% concentration glyoxal solution; the preparation method comprises the following steps: putting a 30% glyoxal solution into a beaker, and heating to 60 degrees; adding cyclodextrin into glyoxal solution with concentration of 30% and stirring until the cyclodextrin is completely dissolved, adding dodecylbenzene sulfonic acid and calcium chloride and continuously stirring until the cyclodextrin is completely dissolved, and standing to room temperature; thirdly, putting the starch-acrylic acid copolymerized water-absorbent resin into the prepared solution until the resin is fully absorbed and taking out. The dehydrated lacquer wooden ware cultural relics have stable size, the shrinkage rate is less than 1 percent, and the requirements of cultural relic protection are completely met; the method is suitable for dewatering and reinforcing the water-saturated paint wooden ware cultural relics obtained by archaeological excavation.
Description
Technical Field
The invention relates to a dehydration and reinforcement method of water-saturated paint wooden ware cultural relics obtained by archaeological excavation, in particular to a method for dehydrating and reinforcing water-saturated paint wooden ware in a semi-solid mode.
Background
A large amount of precious lacquer wood cultural relics are excavated in archaeology in China, wherein most of ancient lacquer wares excavated underground have good raw lacquer film layers and do not lose the brilliance. However, the carcass of the lacquerware is rotten, and the water content is generally 100-400%, even up to 700%. The cultural relics have extremely high cultural and artistic values. For the protection of the water-saturated paint wooden ware cultural relics, the traditional physical and chemical methods are basically adopted, and the spraying or soaking is mainly carried out through chemical medicines. However, the traditional spray or immersion dehydration has many limitations, such as that large-scale wood components in the site are in a complicated environment of mud-wood mixing, and the water-saturated paint wooden ware cultural relics under the conditions are basically impossible to complete dehydration, reinforcement and protection under the liquid form.
Therefore, it is necessary to research a semi-solid dehydration-reinforced material. In order to achieve this, the delivery of the dehydrated reinforcement material to the cultural relics to be protected is an extremely safe and effective method; the method is to use a cationic polymer carrier and glyoxal to form a semi-solid compound to dehydrate and reinforce the water-saturated paint wooden ware cultural relics.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings in the prior art and provide a method for dehydrating and reinforcing water-saturated paint woodware in a semi-solid mode.
The purpose of the invention is realized as follows:
mono-and semisolid reinforcing agent
1. Components of semisolid reinforcing agent (weight percentage)
The semi-solid reinforcing agent mainly comprises the following components:
and (3) verification:
the sum of the lower limits of all the components is less than 100 percent, and the sum of the upper limits of all the components is more than 100 percent;
the sum of the lower limit of each component plus the upper limit of the other components is greater than 100%;
the sum of the upper limit of each component plus the lower limit of the other components is less than 100%.
2. Preparation method of semisolid reinforcing agent
The preparation method of the semi-solid reinforcing agent comprises the following steps:
putting a 30% glyoxal solution into a beaker, and heating to 60 degrees;
adding cyclodextrin into glyoxal solution with concentration of 30% and stirring until the cyclodextrin is completely dissolved, adding dodecylbenzene sulfonic acid and calcium chloride and continuously stirring until the cyclodextrin is completely dissolved, and standing to room temperature;
thirdly, putting the starch-acrylic acid copolymerized water-absorbent resin into the prepared solution until the resin is fully absorbed and taking out.
3. Application of semisolid reinforcing agent
Wrapping the semi-solid reinforcing agent with 500-mesh nylon mesh cloth (preventing soil particles on the cultural relic from adhering or adhering to the surface of the cultural relic), placing the mixture on the surface of the cultural relic, sealing the cultural relic with a preservative film, standing until the semi-solid reinforcing agent permeates into the cultural relic, cleaning the wrapped nylon mesh cloth, and finally naturally drying the lacquer wooden cultural relic in the shade in an environment with the temperature of about 20 ℃ and the humidity of 50-60%.
4. Function of each component
1) Starch-acrylic acid copolymerized water-absorbent resin
The starch-acrylic acid copolymerized water-absorbent resin is an outsourcing product; is a polymer carrier of the cultural relic protective agent.
2) Cyclodextrin
The cyclodextrin is an outsourcing product, and specifically adopts beta-cyclodextrin; for polymerization with a 30% strength glyoxal solution.
3) Dodecyl benzene sulfonic acid is an outsourcing product; acting as a penetrant.
4) Calcium chloride is an outsourcing product; is a moisture regulator.
5) The glyoxal solution with the concentration of 30 percent is an outsourcing product; is a cultural relic dehydration reinforcing agent.
5. Mechanism of operation
The semi-solid reinforcing agent is made of starch-acrylic acid copolymerized water-absorbing resin, can bear glyoxal at high load, releases glyoxal to water-saturated paint wooden ware cultural relics under high load, and can not be extruded by a simple physical method; the load-bearing resin is used for bearing the glyoxal in a coating mode, and the release of the glyoxal is controlled according to different types and bearing rates; the method has simple process, convenient use and wide application range; the liquid state performance is still maintained although the liquid state is in a semi-solid state; the method has high operability on the wooden cultural relics in different spaces and complex environments.
The invention has the following advantages and positive effects:
firstly, the dimension of the paint woodware cultural relic after dehydration is stable, the shrinkage rate is less than 1 percent, and the requirement of cultural relic protection is completely met;
secondly, the semi-solid concept and technology are used for dewatering and reinforcing the water-saturated lacquer wood cultural relics for the first time, a new field of the semi-solid reagent for dewatering the lacquer wood cultural relics is developed, and the blank of the semi-solid technology in the application of repairing the water-saturated lacquer wood cultural relics is filled;
and the dehydration and reinforcement of the water-saturated paint wooden ware cultural relics obtained by archaeological excavation are suitable.
Drawings
FIG. 1 is a resin-coated picture (without plastic wrap) of a water-saturated wood lacquer;
FIG. 2 is a drawing showing the dehydration state of the water-saturated wood resin (with plastic wrap);
FIG. 3 is a pre-dehydration state picture;
fig. 4 is a picture of the dehydrated state.
Detailed Description
The following detailed description of the embodiments is made with reference to the accompanying drawings
Optimum value of the first, semi-solid reinforcing agent component
According to the weight percentage:
second, Experimental conditions
1. Wood block sample dehydration operation treatment step and dehydration effect evaluation
1) Test sample
The wood block sample is unearthed woodware residual block, and the tree species is nanmu; the absolute water content of the sample nanmu is 420%.
2) Wood block sample dewatering operation treatment step
And (3) dehydration by a semi-solid method:
A. and (3) infiltration treatment: preparing a semi-solid reinforcing agent according to the decay degree of the wooden cultural relic, coating the wood test block with a clean surface, wrapping the wood test block with a transparent film (calculating the permeation time according to the decay degree of the wooden cultural relic), and taking out the wood test block and naturally drying the wood test block in the shade after the permeation time is up;
B. dehydration polymerization: and (3) naturally drying the taken wood block sample in the shade in an environment with the temperature of about 20 ℃ and the humidity of 50-60%.
As shown in fig. 1 and 2, it can be seen that: the semi-solid packaging mode is only an operation process.
C. Stability of external dimension of test block
The dimensions of the water-saturated wood block before and after dehydration and reinforcement are shown in fig. 3 and 4, and it can be seen that:
table 1: size before and after semi-solid reinforcing agent wrapping dehydration
Therefore, the semi-solid dehydration method is used for dehydrating and reinforcing the painted woodware, the size of the dehydrated painted woodware cultural relics is stable, the shrinkage rate is less than 1%, and the requirements of cultural relic protection are completely met.
Claims (1)
1. A method for dehydrating and reinforcing water-saturated paint woodware in a semi-solid mode is characterized by comprising the following steps:
the semi-solid reinforcing agent mainly comprises the following components:
0.2-1% of starch-acrylic acid copolymerized water-absorbent resin;
9-11% of cyclodextrin;
0.2-2.1% of dodecyl benzene sulfonic acid;
0.1-0.2% of calcium chloride;
87-89% of glyoxal solution with the concentration of 30%;
the preparation method of the semi-solid reinforcing agent comprises the following steps:
putting a 30% glyoxal solution into a beaker, and heating to 60 degrees;
adding cyclodextrin into glyoxal solution with concentration of 30% and stirring until the cyclodextrin is completely dissolved, adding dodecylbenzene sulfonic acid and calcium chloride and continuously stirring until the cyclodextrin is completely dissolved, and standing to room temperature;
thirdly, putting the starch-acrylic acid copolymerized water-absorbent resin into the prepared solution until the resin is fully absorbed and taking out;
application of the semisolid reinforcing agent:
wrapping the semi-solid reinforcing agent with 500-mesh nylon mesh cloth, placing the nylon mesh cloth on the surface of the cultural relic, sealing the cultural relic with a preservative film, standing until the semi-solid reinforcing agent permeates into the cultural relic, cleaning the wrapped nylon mesh cloth, and naturally drying the lacquer wooden ware cultural relic in the shade at the temperature of about 20 ℃ and the humidity of 50-60%.
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3149952U (en) * | 2009-01-23 | 2009-04-23 | 達彦 奥山 | Lacquered crystal jewelry |
CN101913176A (en) * | 2010-08-03 | 2010-12-15 | 湖北省博物馆 | Method for bulking and repairing shrunk and deformed lacquer antiques |
CN103331793A (en) * | 2013-06-16 | 2013-10-02 | 荆州文物保护中心 | Supercritical dewatering and drying method for small water-saturated bamboo and wood articles |
CN104562669A (en) * | 2015-01-20 | 2015-04-29 | 中国科学技术大学 | Protective reinforcing liquid for ancient silk culture relics, preparation method and protective reinforcing method |
CN106799781A (en) * | 2017-02-21 | 2017-06-06 | 中国林业科学研究院木材工业研究所 | A kind of waterlogged wooden culture relics reinforcement means of utilization nano-cellulose |
CN107775767A (en) * | 2017-05-17 | 2018-03-09 | 浙江省博物馆 | A kind of dehydration shaping method of waterlogged lacquerwares historical relic |
-
2020
- 2020-10-10 CN CN202011078140.2A patent/CN112208258A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3149952U (en) * | 2009-01-23 | 2009-04-23 | 達彦 奥山 | Lacquered crystal jewelry |
CN101913176A (en) * | 2010-08-03 | 2010-12-15 | 湖北省博物馆 | Method for bulking and repairing shrunk and deformed lacquer antiques |
CN103331793A (en) * | 2013-06-16 | 2013-10-02 | 荆州文物保护中心 | Supercritical dewatering and drying method for small water-saturated bamboo and wood articles |
CN104562669A (en) * | 2015-01-20 | 2015-04-29 | 中国科学技术大学 | Protective reinforcing liquid for ancient silk culture relics, preparation method and protective reinforcing method |
CN106799781A (en) * | 2017-02-21 | 2017-06-06 | 中国林业科学研究院木材工业研究所 | A kind of waterlogged wooden culture relics reinforcement means of utilization nano-cellulose |
CN107775767A (en) * | 2017-05-17 | 2018-03-09 | 浙江省博物馆 | A kind of dehydration shaping method of waterlogged lacquerwares historical relic |
Non-Patent Citations (1)
Title |
---|
东亚文化遗产保护学会,复旦大学国土与文化资源研究中心: "《传统技艺与现代科技 东亚文化遗产保护学会第六次国际学术研讨会文集》", 31 March 2019, 上海:复旦大学出版社 * |
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