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Mural and colored drawing cultural relic reinforcing agent with self-healing function and preparation method thereof

A self-healing and reinforcing agent technology, applied in the direction of adhesive additives, non-polymer adhesive additives, adhesive types, etc., can solve problems that affect the appearance and use of cultural relics, and cannot penetrate into cultural relics, etc., to achieve high viscosity Good bonding strength, good permeability, and the effect of ensuring the reinforcement effect

Active Publication Date: 2020-09-15
RES & DEV INST OF NORTHWESTERN POLYTECHNICAL UNIV IN SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, some existing self-healing gel materials have excellent mechanical strength, but because of their deep color and specific physical properties, they cannot penetrate into the interior of cultural relics and affect the appearance and use of cultural relics (Advanced Materials, 2018, 30, 1803004; Nature Chemistry, 2016, 8, 618-62)

Method used

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  • Mural and colored drawing cultural relic reinforcing agent with self-healing function and preparation method thereof
  • Mural and colored drawing cultural relic reinforcing agent with self-healing function and preparation method thereof
  • Mural and colored drawing cultural relic reinforcing agent with self-healing function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the first step, 1.4g poly(2-ethyl-2-oxazoline) and 0.6g poly(4-vinylphenol) were fully dissolved in 5.96ml DMF, poly(2-ethyl-2-oxazole) The mass ratio of morpholine to poly(4-vinylphenol) is 7:3.

[0022] In the second step, the DMF solution of poly(2-ethyl-2-oxazoline) was added dropwise to the DMF solution of poly(4-vinylphenol) while stirring, and 0.5g of calcium chloride was added, and stirred thoroughly At least 6 hours, a light yellow transparent reinforcing agent is obtained, and the total solute concentration in the solution is 0.2097 g / mL.

Embodiment 2

[0024] In the first step, 0.85g of poly(2-ethyl-2-oxazoline) and 0.15g of poly(4-vinylphenol) are fully dissolved in 10ml DMF respectively. The mass ratio of oxazoline) to poly(4-vinylphenol) is 8.5:1.5.

[0025] In the second step, the DMF solution of poly(2-ethyl-2-oxazoline) is added dropwise to the DMF solution of poly(4-vinylphenol) while stirring, and the solution is fully stirred for at least 6 hours to obtain a colorless and transparent solution. Reinforcing agent, the solid concentration in the solution is 0.0500g / mL.

Embodiment 3

[0027] In the first step, 1.6g of poly(2-ethyl-2-oxazoline) and 0.4g of poly(4-vinylphenol) were fully dissolved in 5.96ml DMF respectively, in which, poly(2-ethyl-2- The mass ratio of oxazoline) to poly(4-vinylphenol) is 8:2.

[0028] In the second step, the DMF solution of poly(2-ethyl-2-oxazoline) was added dropwise to the DMF solution of poly(4-vinylphenol) while stirring, and the mixture was fully stirred for at least 6 hours to obtain a light yellow transparent Reinforcing agent, the solid concentration in the solution is 0.1678g / mL.

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Abstract

The invention relates to a mural and colored drawing cultural relic reinforcing agent with a self-healing function and a preparation method thereof, poly (2-ethyl-2-oxazoline) and poly(4-vinylphenol)are taken as main components, the reinforcing agent has good permeability to murals or colored drawing cultural relics, and the appearance of the reinforced cultural relics is not influenced. The reinforcing agent has a high-efficiency self-healing function in a humid environment with the normal temperature and the relative humidity of 80% or above, and the self-healing efficiency can reach 85% orabove. Besides, soluble salt calcium chloride or magnesium chloride is added, or calcium chloride or magnesium chloride contained in murals and colored drawing cultural relics can be coordinated withthe reinforcing agent, and self-healing can be better promoted. Compared with a common acrylic reinforcing agent, the reinforcing agent disclosed by the invention has higher bonding strength, the reinforcing effect is ensured, and meanwhile, the reinforcing agent can also be used as a cultural relic adhesive capable of being repeatedly bonded.

Description

Technical field [0001] The invention belongs to the technical field of cultural relics protection, and relates to a mural and color-painted cultural relic reinforcement with self-healing function and a preparation method. Background technique [0002] The protection of cultural relics is a common long-term issue worldwide. Reinforcement protection is to restore certain mechanical strength to murals and painted cultural relics by adding organic or inorganic materials to avoid devastating damage. Reinforcing agents for murals and painted cultural relics require a certain degree of flexibility, tensile strength, hardness, and adhesive properties (Sichuan Cultural Relics, 2003, 3, 94-96). At present, most cultural relics protection materials use solution-type polymer materials, which are usually used as adhesives, reinforcing agents and protective coatings, and the protection effect is fast and effective. However, not only cultural heritage, but these protective materials themselve...

Claims

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Application Information

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IPC IPC(8): C09J179/04C09J171/10C09J11/04
CPCC08K2003/162C09J11/04C09J179/04C08L71/00C08K3/16
Inventor 李炫华张媛媛
Owner RES & DEV INST OF NORTHWESTERN POLYTECHNICAL UNIV IN SHENZHEN
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