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Preparation method of porous composite humidity controlling agent

A technology of humidity conditioning agent and mass fraction, which is applied in the field of preparation of porous composite humidity conditioning agent, can solve the problems of the influence of moisture capacity, small moisture absorption, pollute the environment, etc. Good wet performance

Inactive Publication Date: 2014-04-23
NANTONG KEXING CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese Patent No. 201110389926.0 discloses a method for manufacturing an intelligent humidity-regulating material, which uses diatomite, sepiolite, sodium carboxymethyl cellulose and sodium polyacrylate for organic-inorganic compounding to prepare the humidity-regulating material, mainly The natural pore structure of diatomite and sepiolite is used to improve the moisture absorption and release performance of the material, especially the moisture release performance, but the moisture absorption of diatomite and sepiolite itself is small, which affects the moisture capacity of the product
Sericin has good hydrophilicity, but a large amount of high-concentration sericin wastewater has not been used in the past, which not only wastes resources but also pollutes the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: the preparation method of porous composite humidity-conditioning agent of the present invention, it adopts following steps:

[0019] A) According to the number of parts by mass, take 100 parts of sericin solution with a weight percentage concentration of 5%, 1 part of cyclodextrin, add 0.1 part of a weight percentage concentration of 10% transglutaminase solution, stir evenly, and heat Place it for 1 hour, then freeze-dry it at minus 50°C and grind it evenly;

[0020] B) Take 0.2 parts of the product obtained in step A) in parts by mass, 5 parts of acrylic acid, 1 part of sodium methacrylate, 2 parts of sodium carboxymethylcellulose, 0.05 parts of potassium persulfate, 10 parts of water, at 40 °C , stirring and reacting for 0.5 hours;

[0021] C) Add 15 parts of glutaraldehyde aqueous solution with a concentration of 5% by weight to the product of step B) in parts by mass, and stir and react for 1 hour at a temperature of 55° C.;

[0022] D) The product ...

Embodiment 2

[0023] Embodiment 2: the preparation method of porous composite humidity-conditioning agent of the present invention, it adopts following steps:

[0024] A) According to the number of parts by mass, take 100 parts of sericin solution with a concentration of 8% by weight, 2 parts of cyclodextrin, and add 1 part of transglutaminase solution with a concentration of 10% by weight. Place it for 2 hours, then freeze-dry it at minus 50°C and grind it evenly;

[0025] B) Take 0.6 parts of the product obtained in step A) in parts by mass, 8 parts of acrylic acid, 1 part of sodium methacrylate, 3 parts of sodium carboxymethylcellulose, 0.1 part of potassium persulfate, and 10 parts of water, at 45 °C , stirring and reacting for 0.5 hours;

[0026] C) Add 3 parts of glutaraldehyde aqueous solution with a concentration of 5% by weight to the product of step B) in parts by mass, and stir and react for 1 hour at a temperature of 65° C.;

[0027] D) The product obtained in step C) is dried...

Embodiment 3

[0028] Embodiment 3: the preparation method of porous composite humidity-conditioning agent of the present invention, it adopts following steps:

[0029] A) According to the number of parts by mass, take 100 parts of sericin solution with a concentration of 10% by weight, 3 parts of cyclodextrin, add 2 parts of a transglutaminase solution with a concentration of 10% by weight, stir evenly, Place it for 3 hours, then freeze-dry it at minus 50°C and grind it evenly;

[0030] B) According to the number of parts by mass, take 1 part of the product obtained in step A), 10 parts of acrylic acid, 2 parts of sodium methacrylate, 5 parts of sodium carboxymethylcellulose, 0.15 parts of potassium persulfate, 15 parts of water, at 50 ° C , stirring and reacting for 0.5 hours;

[0031] C) Add 5 parts of glutaraldehyde aqueous solution with a concentration of 5% by weight to the product of step B) in parts by mass, and stir and react for 1 hour at a temperature of 75° C.;

[0032] D) The ...

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Abstract

The invention relates to a preparation method of a porous composite humidity controlling agent. The preparation method comprises the following steps: A) taking a sericin solution with percentage concentration by weight of 5-10% and beta-cyclodextrin in parts by mass, adding a transglutaminase solution, stirring the materials uniformly, putting the mixture at 20-30 DEG C for 1-3 hours, then freeze-drying the mixture at minus 50 DEG C, and uniformly grinding the product; B) taking the product obtained in the step A), acrylic acid, sodium methacrylate, sodium carboxymethylcellulose, potassium persulfate and water in parts by mass, and stirring the materials at 40-50 DEG C to react for 0.5 hour; C) adding 1-5 parts of glutaraldehyde water solution with percentage concentration by weight of 5% to the product in the step B) in parts by weight, and stirring the materials at 55-75 DEG C to react for one hour; D) drying the product in the step C), and uniformly grinding the product, thus obtaining the porous composite humidity controlling agent. The preparation method has the beneficial effects that 1) the new material has higher wet capacity and better moisture absorption and release performances; 2) the material is environment-friendly and is safe to use.

Description

technical field [0001] The invention relates to a preparation method of a porous composite humidity control agent, which belongs to the technical field of environmental materials. Background technique [0002] 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. Composite humidity-conditioning materials are made by mixing different types of intelligent humidity-conditioning materials with other auxiliary materials. The most common one is the humidity-conditioning materials prepared by compounding superabsorbent resins and inorganic fillers. Chinese Patent No. 201110389926.0 discloses a method for manufacturing an intelligent humidity-regulating material, which uses diatomite, sepiolite, sodium carboxymethyl cellulose and sodium polyacrylate for organic-inorganic compounding to prepare the humidity-regulating materi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/28C08J3/24C08F291/12
Inventor 冯道言刘学昌
Owner NANTONG KEXING CHEM
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