A slow-release zeolite molecular sieve integrated protective agent and its preparation method and application

A zeolite molecular sieve, slow-release technology, applied in the addition of fire retardants, anti-biological reagents, inorganic compounds and other directions, can solve the problems of inability to achieve multi-functional integration of deacidification and antibacterial, uncontrollable alkali content, etc. Poisonous and non-irritating, controllable alkali amount and alkali strength, simple preparation method

Active Publication Date: 2020-09-08
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these deacidification methods have been used for large-scale deacidification, their defects are also obvious: because these commonly used deacidification agents usually contain excessive amounts of alkaline substances, they may have adverse effects in the paper protection process. The amount of alkali is uncontrollable, and organic solvents are needed, and more importantly, it is impossible to realize the multifunctional integration of deacidification and antibacterial

Method used

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  • A slow-release zeolite molecular sieve integrated protective agent and its preparation method and application
  • A slow-release zeolite molecular sieve integrated protective agent and its preparation method and application
  • A slow-release zeolite molecular sieve integrated protective agent and its preparation method and application

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Effect test

Embodiment 1

[0032] (1) Adopt Y-type zeolite molecular sieve, immerse in the ethanol solution containing the magnesium nitrate of 5wt% and the silver nitrate containing 5wt%, the volume ratio of this solution and zeolite molecular sieve is 25:1, oil bath mode heating, reaction temperature is 90 ℃ , the time is 2h. The solid product was isolated by filtration, washed three times with ethanol, and then calcined at 500° C. for 24 hours under an argon atmosphere. A zeolite molecular sieve loaded with 6wt% magnesium species and 3wt% silver species was obtained, and dispersed in water at a mass ratio of 1wt% to form a slow-release zeolite molecular sieve integrated protective agent. Use the ear washing ball to pre-clean the paper to remove surface impurities, and use the dipping method. The mass ratio of the paper to the integrated protective agent aqueous solution is 0.7:1, the dipping time is 20 minutes, and the temperature is 25°C.

[0033] (2) The paper used is the book paper of a hundred y...

Embodiment 2

[0036](1) Adopt X-type zeolite molecular sieve, immerse the ethanol solution containing the barium sulfate of 1wt% and the silver sulfate containing 2wt%, the volume ratio of this solution and zeolite molecular sieve is 40:1, oil bath mode heating, reaction temperature is 100 ℃ , the time is 5h. The solid product was isolated by filtration, washed three times with ethanol, and then calcined at 400° C. for 48 hours under an argon atmosphere. A zeolite molecular sieve loaded with 0.8wt% of barium ions and 1wt% of silver ions is obtained, which is dispersed in water at a mass ratio of 2wt% to form a slow-release integrated protective agent for zeolite molecular sieves. Use the ear washing ball to pre-clean the paper to remove surface impurities, and use the dipping method. The mass ratio of the paper to the integrated protective agent aqueous solution is 0.01:1, the dipping time is 20 minutes, and the temperature is 20°C.

[0037] (2) The paper used is the book paper of a hundre...

Embodiment 3

[0040] (1) Adopt Y type zeolite molecular sieve, immerse the ethanol solution containing the calcium bicarbonate of 5wt% and the silver nitrate containing 5wt%, the volume ratio of this solution and zeolite molecular sieve is 10:1, oil bath mode heating, reaction temperature is 45 ℃, the time is 15h. The solid product was isolated by filtration, washed three times with ethanol, and then calcined at 650° C. for 36 hours under an argon atmosphere. A zeolite molecular sieve loaded with 1wt% of calcium ions and 2.8wt% of silver ions is obtained and dispersed in water at a mass ratio of 2wt% to form a slow-release zeolite molecular sieve integrated protective agent. Use the ear washing ball to pre-clean the paper to remove surface impurities, and use the dipping method. The mass ratio of the paper to the integrated protective agent aqueous solution is 0.5:1, the dipping time is 20 minutes, and the temperature is 25°C.

[0041] (2) The paper used is handmade bamboo paper with an or...

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Abstract

The invention relates to a slow-release zeolite molecular sieve integrated protective agent and a preparation method and application thereof. The protective agent is prepared from a solvent and a slow-release zeolite molecular sieve material dispersed into the solvent, and the slow-release zeolite molecular sieve material is prepared from the zeolite molecular sieve and alkaline earth metal and silver which are loaded on the zeolite molecular sieve simultaneously; when the protective agent is prepared, an organic solution containing alkaline earth metal salt and the silver salt is mixed with the zeolite molecular sieve, then a reaction is conducted, the mixture is filtered, washed, calcined, and dispersed in a solvent, and the protective agent is obtained; the protective agent is used fordeacidification and bacteriostasis. Compared with the prior art, the protective agent has the advantages of being simple in preparation method, controllable in alkali dosage and base strength, flameretardant to paper, capable of achieving the deacidification and bacteriostasis function and free of toxicity and pollution; the deacidification and bacteriostasis method has the long-term safe deacidification and effective antibacterial effects, the paper color difference and pigment are not obviously affected, and the method is suitable for large-scale integrated deacidification and bacteriostasis operation.

Description

technical field [0001] The invention belongs to the technical field of ancient book protection, and relates to a slow-release zeolite molecular sieve integrated protective agent and its preparation method and application. Background technique [0002] As the carrier of information, paper plays a pivotal role in the continuation and inheritance of human civilization, but the natural aging and acidification associated with long-term preservation lead to the acidic hydrolysis of cellulose inside the paper and the erosion of microorganisms in the external environment. The irreversible destruction of cultural relics has become a problem that cannot be underestimated. [0003] There are many collections in our country, and the total amount of paper cultural relics is very large. These precious historical and cultural materials are also facing the situation of accelerated damage. According to the types of damage to these paper cultural relics, there are insects, mildew, rat bites ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H17/68D21H17/66D21H19/40D21H19/64D21H21/36D21H21/34
CPCD21H17/66D21H17/68D21H19/40D21H19/64D21H21/34D21H21/36
Inventor 张宏斌刘鹏张春娜黄艳燕王思浓唐颐
Owner FUDAN UNIV
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