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Paper deacidification solution based on ionic liquid and using method of paper deacidification solution

A technology of ionic liquid and paper, which is applied in the post-treatment of waste paper, etc., can solve the problems of high process conditions, affecting the deacidification efficiency of paper, uneven deacidification effect, etc., and achieves good safety, good storage environment, good The effect of the moisturizing effect

Inactive Publication Date: 2019-05-03
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the deacidification component is in the gas phase, the required process conditions are very demanding, the deacidification effect is uneven, and there are potential safety hazards
The liquid phase deacidification method mainly uses alkaline aqueous solution or organic solution to deacidify paper documents. The organic solution deacidification method has flammable, explosive and toxic hidden dangers, while the alkaline aqueous solution method uses sizing agents during the deacidification process, resulting in Certain water repellency, poor wettability to paper, affects paper deacidification efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] With ultrapure water as solvent, the fatty alcohol polyoxyethylene ether AEO-9 (C 12 h 25 O(C 2 h 4 O) 9 ) solution, evenly stirred to obtain a deacidification wetting liquid; soak the quaternary ammonium cationic starch in ultrapure water for 2 hours at room temperature to make it fully swell, and then swell the swollen starch in a constant temperature water bath at 60°C according to the mass ratio of 0.5:250 Starch was placed in anhydrous ethanol / ultrapure water binary mixed solution (the mass ratio of anhydrous ethanol to ultrapure water was 1:1), and after uniform stirring, a reinforcing agent solution was obtained; The wetting solution and the strengthening agent solution are uniformly mixed at a mass ratio of 1:3 to obtain a stable coexisting paper deacidification solution.

[0029] Check its implementation effect. The paper was immersed in ultrapure water as a control.

[0030] Comparative analysis of indicators before and after deacidification and wetting ...

Embodiment 2

[0033] Using ultrapure water as a solvent, prepare a fatty alcohol ether phosphate MOA-3P solution with a mass fraction of 5 wt%, and obtain a deacidification wetting liquid after uniform stirring; soak the quaternary ammonium cationic starch in ultrapure water for 2 hours at room temperature to make it Fully swell, then place the swollen starch in a binary mixed solution of absolute ethanol / ultrapure water at a mass ratio of 1:275 in a constant temperature water bath at 60°C (the mass ratio of absolute ethanol to ultrapure water is 1:1) After uniform stirring, the strengthening agent solution was obtained; in a constant temperature water bath at 60°C, the deacidification wetting solution and the strengthening agent solution were uniformly mixed at a mass ratio of 1.5:4 to obtain a stable and coexistent paper deacidification solution.

[0034] Check its implementation effect. The paper was immersed in ultrapure water as a control.

[0035] Comparative analysis of indicators b...

Embodiment 3

[0038] Using ultrapure water as a solvent, prepare 1-ethyl-3-methylimidazole bis(trifluoromethylsulfonyl)imide salt [EMIm]NTf with a mass fraction of 20wt% 2 Solution, after uniform stirring to obtain deacidification wetting liquid; soak quaternary ammonium cationic starch in ultrapure water for 2 hours at room temperature to make it fully swell, and then swell the swollen starch in a constant temperature water bath at 60°C with a mass ratio of 1.5:300 Place in anhydrous ethanol / ultrapure water binary mixed solution (the mass ratio of anhydrous ethanol to ultrapure water is 1:1), and stir evenly to obtain a reinforcing agent solution; The wet solution and the strengthening agent solution are uniformly mixed at a mass ratio of 1:2 to obtain a stable and coexistent paper deacidification solution.

[0039] Check its implementation effect. The paper was immersed in ultrapure water as a control.

[0040] Comparative analysis of indicators before and after deacidification and wett...

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Abstract

The invention discloses a paper deacidification solution based on ionic liquid and a using method of the paper deacidification solution. The paper deacidification solution comprises an ionic liquid type surfactant and quaternary ammonium cationic starch, wherein the ionic liquid surfactant is one selected from AEO-9, MOA-3P and [EMIm]NTf<2>. The using method comprises the following steps: preparing a deacidification wetting solution by using ultrapure water, dissolving quaternary ammonium type cationic starch by using an ethanol-water solution, mixing the deacidification wetting solution and the quaternary ammonium type cationic starch solution according to a certain ration to obtain the stably coexistent paper deacidification solution, soaking paper to be treated into the paper deacidification liquid, and drying the deacidified paper. The paper deacidification solution disclosed by the invention is a homogeneous solution system and is green and environmentally friendly, the deacidifying effect of aged paper is obvious, and the pH value after treatment is distributed in a range of 7.3-8.1, so that a good storage environment is provided for the paper, and the paper deacidification solution is widely suitable for wetting and deacidification wetting treatment of ancient calligraphy and paintings, aged paper and literatures.

Description

technical field [0001] The invention relates to an ionic liquid-based paper deacidification solution and a method for using the same, belonging to the technical field of paper deacidification. Background technique [0002] Since the invention of papermaking, paper documents have become an important means of recording history, disseminating culture and promoting culture. With the changes and development of the times, paper documents still have important reference and scientific research value. The distribution of modern literature in our country is relatively wide and the quantity is huge. In the modern papermaking and printing process in our country, in order to improve the surface properties of paper, raw materials similar to sizing agents, process, water-repellent chemical additives such as sizing agents, and writing materials are added in the papermaking process. Ink, the environment in which paper cultural relics are preserved, acidic gas, dust, and microorganisms in t...

Claims

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Application Information

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IPC IPC(8): D21H25/18
Inventor 蒋曙光奚弦吴征艳王凯邵昊张卫清郭朝伟陈慧妍郝海清
Owner CHINA UNIV OF MINING & TECH
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