Method for preparing nano pore composite humidity adjusting material

A humidity-regulating material and nanopore technology, applied in chemical instruments and methods, and other chemical processes, can solve the problems of moisture absorption and desorption performance limitations, difficult release of water molecules, and insufficient moisture capacity, etc. Fast response to dehumidification, large moisture absorption and desorption capacity, and convenient reuse

Inactive Publication Date: 2010-12-29
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 After that, it is not easy to release, so the moisture absorption and desorption performance of the material, especially the dehumidification 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 nano pore composite humidity adjusting material
  • Method for preparing nano pore composite humidity adjusting material
  • Method for preparing nano pore composite humidity adjusting material

Examples

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Effect test

Embodiment 1

[0020] A method for preparing a nanoporous composite humidity-regulating material, characterized in that the following steps are adopted:

[0021] A) Take 0.5 parts of organic polymer materials, 2 parts of natural polymer materials, and 10 parts of inorganic porous substances with a particle size of 120 mesh according to the number of parts by mass, add them to a reaction kettle with 50 parts of water, and stir at a temperature of 80 ° C. Reaction for 20 minutes; the organic polymer material is one or more of polyacrylamide, acrylamide, and sodium polyacrylate; the natural polymer material is one of cellulose, carboxymethyl cellulose, and ethyl cellulose; inorganic porous The substance is one of sepiolite, diatomite, montmorillonite, and zeolite. When polyacrylamide is used as the organic polymer material, 0.2 parts of modifier must be added at the same time. The modifier is calcium chloride, magnesium chloride, and magnesium nitrate. , one of calcium nitrate.

[0022] B) Add...

Embodiment 2

[0026] A method for preparing a nanoporous composite humidity-regulating material, characterized in that the following steps are adopted:

[0027] A) According to the number of parts by mass, take 15 parts of organic polymer materials, 2 parts of natural polymer materials, and 10 parts of inorganic porous substances with a particle size of 110 mesh, add them to a reaction kettle with 50 parts of water, and stir at a temperature of 70 ° C. Reaction for 20 minutes; the organic polymer material is one or more of polyacrylamide, acrylamide, and sodium polyacrylate; the natural polymer material is one of cellulose, carboxymethyl cellulose, and ethyl cellulose; inorganic porous The substance is one of sepiolite, diatomite, montmorillonite, and zeolite. When polyacrylamide is used as the organic polymer material, 0.5 parts of modifier must be added at the same time. The modifier is calcium chloride, magnesium chloride, and magnesium nitrate. , one of calcium nitrate.

[0028] B) Add...

Embodiment 3

[0032] A method for preparing a nanoporous composite humidity-regulating material, characterized in that the following steps are adopted:

[0033] A) According to the number of parts by mass, take 30 parts of organic polymer materials, 2 parts of natural polymer materials, and 10 parts of inorganic porous substances with a particle size of 100 mesh, add them to a reaction kettle with 50 parts of water, and stir at a temperature of 60 ° C. Reaction for 20 minutes; the organic polymer material is one or more of polyacrylamide, acrylamide, and sodium polyacrylate; the natural polymer material is one of cellulose, carboxymethyl cellulose, and ethyl cellulose; inorganic porous The substance is one of sepiolite, diatomite, montmorillonite, and zeolite. When polyacrylamide is used as the organic polymer material, 0.8 parts of modifier must be added at the same time. The modifier is calcium chloride, magnesium chloride, and magnesium nitrate. , one of calcium nitrate.

[0034] B) Add...

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Abstract

The invention discloses a method for preparing a nano pore composite humidity adjusting material. An organic macromolecular material, a natural macromolecular material and an inorganic porous material are compounded into the humidity adjusting material by synthesis so as to absorb the advantages of various humidity adjusting materials and improve the wet capacity and humidity adjusting performance of the synthesized material; and a large amount of nano-scale pore structures are formed on the material through the synthesis process so as to further improve the humidity absorbing and discharging performance of a product. Compared with the prior art, the method has the advantages that: 1) the material has high humidity absorbing and discharging capacity and high humidity absorbing and discharging response speed, and can efficiently and quickly adjust the relative humidity of a microenvironment; 2) the material is renewable and very convenient to reuse; 3) the production process and the production equipment are simple and easy for industrialization; and 4) the production process is environmentally-friendly.

Description

technical field [0001] The invention relates to a preparation method of a functional material, in particular to a preparation method of a nanoporous composite humidity-regulating material. Background technique [0002] Humidity adjustment methods include mechanical adjustment and non-mechanical adjustment. The machinery for adjusting humidity mainly includes dehumidifiers, humidifiers, and constant humidity air conditioners. The moisture absorption and desorption performance of wet materials can independently and adaptively adjust the environmental humidity. This method does not require any mechanical equipment and energy consumption, and is an environmentally friendly control and adjustment method. [0003] Humidity control materials can be roughly divided into the following categories: special silica gel, montmorillonite, inorganic salts, organic polymer materials, etc., each with its own advantages and disadvantages. Pores increase the specific surface area, but there a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/26C08L33/02C08L1/02C08L1/26C08L1/28C08L51/02C08K3/34C08J9/26C08J9/08C09K3/00
Inventor 胡智文杨海亮
Owner ZHEJIANG SCI-TECH UNIV
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