Method for preparing macromolecule humidity controlling agent

The technology of a humidity conditioning agent and a polymer is applied in the field of preparation of a polymer humidity conditioning agent, which can solve the problems of hysteresis of dehumidification, limitation of dehumidification and desorption performance, insufficient moisture capacity, etc. , The effect of moisture absorption and desorption, fast response speed and convenient repeated use

Inactive Publication Date: 2012-02-01
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Invention patent CN200910101489.0 discloses a preparation method of a temperature-adjusting and humidity-adjusting material, which is used for humidity regulation of the microenvironment, but the polyethylene glycol and gelatin in it will block the pores of sepiolite itself, and water molecules will enter the interior of the resin It is not easy to desorb after desorption, so the moisture absorption and release performance of the material, especially the moisture release performance, is limited, and it is prone to hysteresis and hysteresis, and the wet capacity is not large enough.

Method used

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  • Method for preparing macromolecule humidity controlling agent
  • Method for preparing macromolecule humidity controlling agent
  • Method for preparing macromolecule humidity controlling agent

Examples

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Effect test

Embodiment 1

[0020] A kind of preparation method of macromolecule humidity-conditioning agent is characterized in that adopting following steps:

[0021] A) Get 3 parts of polyacrylamide by mass parts, 2 parts of sodium polyacrylate, 2 parts of carboxymethyl cellulose, 0.04 part of potassium persulfate, 0.008 part of N, N'-methylenebisacrylamide, 0.4 part of chlorine Aluminum chloride and 0.5 parts of calcium chloride were respectively added to a reactor containing 50 parts of water, and the reaction was stirred for half an hour at a temperature of 80°C;

[0022] B) According to the mass fraction of step A), 1.2 parts of sodium bicarbonate were added to the above-mentioned reactor, stirred and reacted for 5 hours, and the synthetic product was obtained;

[0023] C) The synthesized product is dried and heat-treated at 150° C. for 1 hour to obtain a polymer humidity-conditioning agent.

Embodiment 2

[0025] A kind of preparation method of macromolecule humidity-conditioning agent is characterized in that adopting following steps:

[0026] A) Get 4 parts of polyacrylamide by mass parts, 2 parts of sodium polyacrylate, 2 parts of carboxymethyl cellulose, 0.04 part of potassium persulfate, 0.008 part of N, N'-methylenebisacrylamide, 0.4 part of chlorine Aluminum chloride and 0.5 parts of calcium chloride were respectively added to a reactor containing 50 parts of water, and the reaction was stirred for half an hour at a temperature of 70°C;

[0027] B) According to the mass fraction of step A), 1.2 parts of sodium bicarbonate were added to the above-mentioned reactor, stirred and reacted for 4 hours, and the synthetic product was obtained;

[0028] C) The synthesized product is dried and heat-treated at 150° C. for 1 hour to obtain a polymer humidity-conditioning agent.

Embodiment 3

[0030] A kind of preparation method of macromolecule humidity-conditioning agent is characterized in that adopting following steps:

[0031] A) Take 5 parts of polyacrylamide by mass parts, 2 parts of sodium polyacrylate, 2 parts of carboxymethyl cellulose, 0.04 part of potassium persulfate, 0.008 part of N, N'-methylenebisacrylamide, 0.4 part of chlorine Aluminum chloride and 0.5 parts of calcium chloride were respectively added to a reactor containing 50 parts of water, and the reaction was stirred for half an hour at a temperature of 60°C;

[0032] B) According to the mass fraction of step A), 1.2 parts of sodium bicarbonate were added into the above-mentioned reactor, stirred and reacted for 3 hours, and the synthetic product was obtained;

[0033] C) drying the synthesized product and heat treatment at 150° C. for 2 hours to obtain a polymer humidity conditioner.

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Abstract

The invention relates to a method for preparing a macromolecule humidity controlling agent. In the process of synthesis of a macromolecule humidity controlling material, a large amount of nano-size pore structures are formed on the material so as to improve the property of the humidity controlling material and automatically adjust the air humidity of micro-environment through the humidity absorption and release of the material while automatically inducting the ambient humidity. Compared with the prior art, the invention has the advantages that 1), the humidity absorption and release capacity is large, the humidity absorption and release response speed is rapid, and the relative humidity of the micro-environment can be effectively and rapidly adjusted; 2), the regeneration and reuse of thehumidity controlling agent are convenient; and 3) the processes of production and use are environment-friendly and harmless.

Description

technical field [0001] The invention relates to a functional polymer material, in particular to a preparation method of a polymer humidity control agent. Background technique [0002] Functional polymer materials involve all aspects of technology and life in today's society, and products are changing with each passing day. "Polymer humidity control agent" means that it does not need any artificial energy and mechanical equipment, relying on its own intelligent self-humidity adjustment performance, while automatically sensing the ambient humidity, it can automatically adjust the relative humidity of the air through the moisture absorption and dehumidification of the material itself. s material. Humidity control materials at home and abroad can be roughly divided into the following categories: special silica gel, montmorillonite, inorganic salts, organic polymer materials, etc. All kinds of humidity control materials have their own advantages and disadvantages. Invention pat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/26C08L33/02C08L1/26C08J9/08C09K3/00
Inventor 杨海亮胡智文黄盾
Owner ZHEJIANG SCI-TECH UNIV
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