Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Nanometer stone cultural relic protective agent and preparation method thereof

A technology of stone cultural relics and protective agents, applied in nanotechnology, biocide-containing paints, antifouling/underwater coatings, etc., can solve the problem of poor compatibility between polymer cultural relic materials and cultural relics, and hinder the normal migration of water vapor , Blocking the gaps of cultural relics and other issues, to achieve good shading effect, good scattering effect, and long-lasting effect

Active Publication Date: 2018-04-20
河南科斗新材料研究院有限公司
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For stone cultural relics, the usual method is to use surface hydrophobic materials to treat them. However, with the deepening of research on the protection of stone cultural relics, it is found that polymer cultural relic materials have poor compatibility with the cultural relics, which will block the gaps in the cultural relics and hinder water vapor. normal migration, and even produce protective damage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Nanometer stone cultural relic protective agent and preparation method thereof
  • Nanometer stone cultural relic protective agent and preparation method thereof
  • Nanometer stone cultural relic protective agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A kind of nano-SiO 2 The preparation method comprises the following steps:

[0054] (1) Synthesis of star macromolecular initiator 21Br-β-CD:

[0055] Take 6.82g of β-cyclodextrin, dry it at 80°C for 12h under vacuum, then dissolve it in 60mL of N-methylpyrrolidone at room temperature, put it in an ice-water bath, and cool it to 0°C. Under this condition, Add 58g of 2-bromoisobutyryl bromide dropwise within 2h. After the dropwise addition, warm up to room temperature and continue to react for 24h to obtain a brown solution. Concentrate by distillation under reduced pressure, add 100mL of dichloromethane to dilute, and wash with 100mL of saturated aqueous sodium bicarbonate solution and 100 mL of deionized water were washed three times each, and the obtained organic phase was dried with anhydrous magnesium sulfate, then concentrated with a rotary evaporator, and finally precipitated in n-hexane below -20°C to obtain a white precipitate, which was dried in a vacuum oven ...

Embodiment 2

[0065] A nano-silver synthesis method, the steps of which are similar to those of nano-silica, the difference being that the nano-silver is synthesized multi-arm star-shaped block copolymer β-CD-g-[PAA-b- Ps] and precursor AgNO 3 Reaction, synthetic silver nanoparticles, the steps are:

[0066] Dissolve 10mg β-CD-g-[PAA-b-Ps] in 10mL DMF to make unimolecular micellar template solution; then add 58.9mg AgNO 3 And 2mL of ethanol, at 100 ℃ for 10h, that is. The average particle size of the nanoparticles is about 10 nm.

Embodiment 3

[0068] A kind of nanometer stony cultural relic protection agent, comprises the following raw material in weight part: 5 parts of nano-silicon dioxide, 0.5 part of nano-silver, 18 parts of butyl acetate, 3 parts of isopropanol, 12.5 parts of Daikin GM-105D, soybean Lecithin 0.2 parts, DISPER BYK-20900.5 parts, BYK-085 0.1 parts, PEGASOL 3040 60.2 parts.

[0069] The particle size of the nano silicon dioxide is 5nm.

[0070] The particle size of the nano-silver is 10nm.

[0071] The preparation method of described nano stone property cultural relic protection agent, comprises the following steps:

[0072] (1) Dispersion: Add butyl acetate and isopropanol into the dispersion tank, add soybean lecithin, DISPERBYK-2090, BYK-085 under stirring conditions, continue stirring for 5-10min, and then add nano-silica under stirring conditions , nano-silver, and continue to stir for 30min to obtain a nano-dispersion;

[0073] (2) Compounding: Add PEGASOL 3040 into the stainless steel re...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a nanometer stone cultural relic protective agent and a preparation method thereof. The nanometer stone cultural relic protective agent comprises the following raw materials: nanosilicon dioxide, nano-silver, n-butyl acetate, isopropanol, a stone protective agent, soya bean lecithin, a dispersing agent, a defoaming agent and a solvent. The protective agent disclosed by theinvention can be bonded with the porous surface of a stone material, a firm, lasting and transparent waterproof and oilproof protective film is formed inside the surface of the stone material, and theprotective agent serves as a water-based penetrating sealing agent on the porous surface of a stone cultural relic. The protective agent disclosed by the invention has high water resistance, antifouling performance and oil resistance, the surface of the stone material can be prevented from being polluted by foreign matters effectively, and the surface is easy to clean; the protective agent has high air permeability, and steam can be penetrated; the protective agent has high weather resistance and ultraviolet resistance, and can effectively prevent the surfaces of the cultural relics such as stone materials and ceramics from being weathered; and the coating is transparent, and the appearance characteristic of the surface of the stone material does not change.

Description

technical field [0001] The invention belongs to the field of cultural relics protection, and in particular relates to a nano stone cultural relics protective agent and a preparation method thereof. Background technique [0002] Stone cultural relics refer to all cultural relics processed with natural stones as raw materials, which are basically divided into three categories: stone art cultural relics (there are Dunhuang Mogao Grottoes in my country, Yungang Grottoes in Datong, Shanxi, and Longmen Grottoes in Luoyang, Henan). , Dazu Rock Carvings in Chongqing, etc. are included in the World Cultural Heritage List), stone architectural relics, stone tools and utensils. Due to the long-term erosion of rain, snow, moisture, groundwater and soluble salt, the stone cultural relics and stone buildings preserved in the open air are seriously weathered, and many of them are in an endangered state. The restoration and protection of these cultural relics requires the use of many techni...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C09D1/00C09D7/61C09D7/63C09D5/16B22F9/24C01B33/18B82Y40/00C08F293/00C08F220/18C08F212/08
CPCB22F9/24B82Y40/00C01B33/18C01P2004/64C08F212/08C08F220/18C08F220/1804C08F293/005C08F2438/01C09D1/00C09D5/1687
Inventor 裴东杰吴斌刘刚于航
Owner 河南科斗新材料研究院有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com