Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method and application of composite material for protecting paper files

A composite material, paper document technology, applied in the direction of coating, can solve the problems of unsuitable promotion and application, text recognition obstacles, inability to promote and application, etc., to achieve the effect of increased protection, good wettability, and rich sources

Active Publication Date: 2013-11-06
甘肃省博物馆
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Our country carried out research on this work in 1958. After gamma ray irradiation treatment, insects can be killed or their offspring will be sterile. Different characteristics should be further studied, and it is not suitable to promote and apply at present, so as not to cause irreparable losses to cultural relics
Gong Decai et al. (Cultural Relics Protection and Archaeological Science, 1996, 8, (1): 29-34) introduced the method of Pylaron vapor deposition to strengthen paper, and the paper cultural relics protected by Pylaron are waterproof, anti-bacterial and anti-corrosion. The performance is good, but the texture of the paper has changed to some extent, and due to the limitation of equipment cost, it cannot be popularized and applied, and the scope of use is very limited
[0004] The above methods have played a positive role in the preservation and protection of paper cultural relics, but there are also insurmountable disadvantages, such as protection materials hindering the recognition of characters and affecting the texture of paper, etc.

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
  • Preparation method and application of composite material for protecting paper files
  • Preparation method and application of composite material for protecting paper files
  • Preparation method and application of composite material for protecting paper files

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A preparation method and application of a composite material that can be used to protect paper documents:

[0033] 1) Take 200g of the waste residue after oil extraction of Artemisia annua seeds, use distilled water as solvent, adopt solid-liquid ratio 1:300, microwave power 500W, extraction temperature 50 ℃, extraction time 60min to carry out microwave-assisted extraction experiment in microwave extraction device; extract After the liquid was centrifuged, the supernatant was concentrated under reduced pressure at 0.07MPa to 1 / 5 of the original volume, and absolute ethanol was added until the final concentration of ethanol was 80%, and after alcohol precipitation for 24 hours, it was centrifuged, and the lower layer was precipitated with absolute ethanol and acetone, respectively. After washing 3 times, substance A was obtained by freeze-drying for 13 hours.

[0034] 2) Weigh 0.1g of substance A, put it in a beaker, add 1000 times (m / v) distilled water, stir and swell w...

Embodiment 2

[0043] A preparation method and application of a composite material that can be used to protect paper documents:

[0044] 1) Take 100g of the waste residue after oil extraction of Artemisia annua seeds, use distilled water as solvent, adopt solid-liquid ratio 1:200, microwave power 400W, extraction temperature 40 ℃, extraction time 90min to carry out microwave-assisted extraction experiment in microwave extraction device; extract After the liquid was centrifuged, the supernatant was concentrated under reduced pressure at 0.06MPa to 1 / 6 of the original volume, and absolute ethanol was added until the final concentration of ethanol was 80%, and after alcohol precipitation for 24 hours, it was centrifuged, and the lower layer was precipitated with absolute ethanol and acetone, respectively. After washing 3 times, substance A was obtained by freeze-drying for 12 hours.

[0045] 2) Weigh 0.5g of substance A, put it in a beaker, add 200 times (m / v) distilled water, stir and swell wi...

Embodiment 3

[0053] A preparation method and application of a composite material that can be used to protect paper documents:

[0054] 1) Take 300g of the waste residue after oil extraction of Artemisia annua seeds, use distilled water as solvent, adopt solid-liquid ratio 1:400, microwave power 600W, extraction temperature 60 ℃, extraction time 30min to carry out microwave-assisted extraction experiment in microwave extraction device; extract After the liquid was centrifuged, the supernatant was concentrated under reduced pressure at 0.08MPa to 1 / 6 of the original volume, and absolute ethanol was added until the final concentration of ethanol was 80%, and after alcohol precipitation for 24 hours, it was centrifuged, and the lower layer was precipitated with absolute ethanol and acetone, respectively. After washing 3 times, substance A was obtained by freeze-drying for 14 hours.

[0055] 2) Weigh 0.2g of substance A, put it in a beaker, add 250 times (m / v) distilled water, stir and swell wi...

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
molecular weight distributionaaaaaaaaaa
molecular weight distributionaaaaaaaaaa
glossaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method and application of a composite material for protecting paper files. The composite material is prepared by the following steps of: mixing artemisia seed poly polysaccharide in a certain ratio, stirring, and ultrasonically dispersing to obtain the composite material. The composite material is sprayed to the surface of a cultural relic. The composite material is prepared from natural polymer materials, so that the composite material has high compatibility with paper, and cannot generate stress with a paper fiber material when external environmental conditions are changed due to large physiochemical property difference from paper fibers so as to avoid damaging paper relics; natural polymers have high permeability and wettability for the paper fibers, and cannot cause concentration gradient on the surface and inside of the paper relics so as not to accelerate the ageing of the paper relics; and the natural polymer materials have the advantages of no pollution, no toxicity, rich sources, high reversibility and the like.

Description

technical field [0001] The invention relates to a preparation method for protecting paper cultural relic materials, in particular to a preparation method and application of a composite material which can be used for protecting paper documents. Background technique [0002] Paper cultural relics are an important part of Chinese historical relics. They are precious documents for studying Chinese history and even world history and ancient art, and have extremely important research value. Unsuitable temperature and humidity, light, harmful gas, dust solid suspension, insects and mildew, as well as improper management and repair methods, etc., will cause damage to paper cultural relics. [0003] The protection of paper cultural relics includes low-temperature freezing insecticidal technology, paper deacidification technology, fragile paper silk screen reinforcement technology, gamma radiation protection technology, coating method, vacuum coating method, and resin reinforcement me...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C09D105/00C08B37/00
Inventor 俄军吴依茜张继张建全弥卓君
Owner 甘肃省博物馆