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Preparation method and application of anti-ultraviolet polymer material for paper cultural relics

A technology of polymer materials and paper cultural relics, applied in waste paper post-processing, printing post-processing, printing, etc., can solve the problem that ultraviolet aging does not have much effect, and achieve low viscosity, simple preparation process, and light transmittance Good results

Inactive Publication Date: 2018-01-16
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can integrate deacidification and reinforcement to achieve the purpose of protecting paper cultural relics, but it does not have much effect on UV aging

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] Preparation of regenerated cellulose

[0034] 5gMCC and 100mL low-temperature sodium hydroxide solution with a mass fraction of 8% were stirred rapidly at low temperature for 1h, and then centrifuged to obtain the supernatant; the supernatant was mixed with 100mL absolute ethanol, stirred rapidly, filtered, washed, and freeze-dried , to obtain regenerated cellulose.

[0035] Preparation of Modified Regenerated Cellulose

[0036] Stir 5 g of the regenerated cellulose prepared by the above method with 100 mL of 95% ethanol solution, add 0.4 g of KH-560, then raise the temperature to 80 ° C, and react for 1 h; filter, wash, and dry to obtain KH-560-modified regenerated cellulose.

Embodiment 1

[0038] In a 250mL four-neck flask, add 0.348g OP-10, 0.348g SDS and 24.741g deionized water, stir until dissolved, add 3.77g St, 4.05g MMA, 0.61gE-44, 26.06g BA, 0.242g AA, 3.48g DFMA, under the condition of 30℃, keep stirring and carry out the pre-emulsification reaction for 5h to obtain the shell pre-emulsion; take another four-neck bottle, add 0.116g OP-10, 0.116g SDS and 24.741g deionized water , Stir well until dissolved, add 0.383g of modified regenerated cellulose, react at 30°C for 5h, and obtain a nuclear monomer pre-emulsion. Dissolve 0.116g Na with 24.741g deionized water 2 HPO 4 Prepare buffer solution, dissolve 0.201g initiator KPS with 24.741g deionized water, then buffer solution, volume fraction Initiator solution and volume fraction The shell monomer pre-emulsion was added to the core monomer pre-emulsion, and the temperature was raised to 40°C; after the emulsion turned blue, the remaining shell monomer pre-emulsion and Initiator KPS solution, control ...

Embodiment 2

[0040] In a 250mL four-neck flask, add 0.458g OP-10, 0.305g SDS and 22.263g deionized water, stir until dissolved, add 3.77g St, 4.05g MMA, 0.699gE-44, 18.06g BA, 0.28g AA, 4.57g DFMA, under the condition of 40℃, keep stirring and carry out the pre-emulsification reaction for 3 hours to obtain the shell pre-emulsion; take another four-neck bottle, add 0.152g OP-10, 0.102g SDS and 22.263g deionized water , Stir well until dissolved, add 0.629g of modified regenerated cellulose, and react at 40°C for 3h to obtain a nuclear monomer pre-emulsion. Dissolve 0.129g Na with 22.263g deionized water 2 HPO 4 Prepare buffer solution, dissolve 0.193g initiator KPS with 22.263g deionized water, then buffer solution, volume fraction Initiator solution and volume fraction The shell monomer pre-emulsion was added to the core monomer pre-emulsion, and the temperature was raised to 50°C; after the emulsion turned blue, the remaining shell monomer pre-emulsion and Initiator KPS solution, c...

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PUM

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Abstract

The invention belongs to the technical field of synthesis of high-molecular polymers and relates to preparation of an anti-ultraviolet polymer material, in particular to a preparation method of an anti-ultraviolet polymer material for paper relics and an application of the anti-ultraviolet polymer material. According to the preparation method of the anti-ultraviolet polymer material for the paper relics, the anti-ultraviolet polymer material is a composite emulsion adopting a shell-core structure with modified regenerated cellulose serving as a core and an epoxy resin-styrene-acrylate copolymer serving as a shell. The preparation process is simple, operation is simple and convenient, a solvent used in the reaction process is water, and the preparation method is free from pollution and environment-friendly. A prepared sealing and protection material has good stability, small viscosity, excellent waterproof performance, oil-proof performance, anti-ultraviolet performance, reversibility and the like and can be applied to reinforcement and protection of the paper relics. The prepared paper relic protection material has reversibility and has better compatibility with paper, a protection film is thin, has good light transmission and can be removed under the condition that the protection film is not damaged or seldom damaged, the original appearance of the paper relics is not influenced, and the principle of restoring the old as the old is met.

Description

technical field [0001] The invention belongs to the technical field of polymer synthesis, and relates to the preparation of an anti-ultraviolet polymer material, in particular to a preparation method and application of an anti-ultraviolet polymer material for paper cultural relics. Background technique [0002] Long before Cai Lun of the Eastern Han Dynasty invented "Cai Hou Paper", the prototype of paper had already appeared in China. According to research, the map paper unearthed from the Fangmatan Han Tomb in Tianshui, Gansu Province is the earliest known paper in the world. Paper is not only the main carrier of human civilization, but also an important witness of social history. However, with the passage of time, countless paper cultural relics are aging, damaged, and disappearing. Thousands of paper cultural relics across the country have been damaged or are in the process of being damaged every year. Paper cultural relics are not only fragile in material and have man...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F251/02C08F220/18C08F220/22C08F212/08C08F220/14C08F220/06C08F2/30C08F2/26C08B15/05D21H25/18B41M7/00
CPCB41M7/0063C08B15/05C08F2/26C08F2/30C08F251/02D21H25/18C08F220/1804
Inventor 邱凤仙陈倩戴玉婷笪祖林徐吉成杨冬亚
Owner JIANGSU UNIV
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