Macromolecular composite anatonosis storage-increment material and preparation method thereof

A technology of macromolecule and infiltration, applied in soil conditioning materials, chemical instruments and methods, organic fertilizers, etc., can solve the problem that superabsorbent resin is not suitable for farmland use, and achieve the effect of reducing water evaporation and improving soil structure

Inactive Publication Date: 2016-05-25
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantage that the existing superabsorbent resin is not suitable for use in farmland, the present invention discloses a new type of superabsorbent resin—a polymer composite material for increasing permeability and expanding storage containing humic acid-acrylic acid-carboxymethyl cellulose. Solve the problem of releasing water after swelling, and also solve the problem of providing organic nutrients to farmland

Method used

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  • Macromolecular composite anatonosis storage-increment material and preparation method thereof
  • Macromolecular composite anatonosis storage-increment material and preparation method thereof

Examples

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Effect test

Embodiment 1

[0018] Humic acid 2%, acrylic acid 83%, carboxymethyl cellulose 14%, initiator potassium persulfate 0.02%, crosslinking agent N,N-methylenebisacrylamide 0.01% and stabilizer phosphite 0.01%. After adding and mixing the above materials in order, pass in an external inert gas for 30 minutes, stir at a speed of 500 rpm for 30 minutes, fully react for 4 hours, take it out, wash and dry, and granulate to obtain the finished product. The water absorption rate of this material is 783.6g / g, which is 392 times higher than the water absorption capacity of aeolian sandy soil.

[0019] The seepage-increasing and storage-expanding material in this embodiment can be used as a drought-resistant, water-retaining and seepage-enhancing agent for sandy loam, and the effect of sowing after cultivating the soil is better.

Embodiment 2

[0021] Humic acid 2%, acrylic acid 82%, carboxymethyl cellulose 14%, initiator potassium persulfate 0.02%, crosslinking agent N,N-methylenebisacrylamide 0.01% and stabilizer phosphite 0.01%. Add and mix the above materials in order, pass in an external inert gas for 20 minutes, stir at 500 rpm for 20 minutes, fully react for 4 hours, take it out, wash and dry, and granulate to obtain the finished product. The water absorption rate of this material is 631.5g / g, which is 316 times higher than the water absorption capacity of aeolian sandy soil.

[0022] The implementation usage of this material is the same as Example 1.

Embodiment 3

[0024] Humic acid 3%, acrylic acid 82%, carboxymethyl cellulose 14%, initiator potassium persulfate 0.02%, crosslinking agent N,N-methylenebisacrylamide 0.01% and stabilizer phosphite 0.01%. Add and mix the above materials in order, pass in an external inert gas for 15 minutes, stir at 500 rpm for 30 minutes, fully react for 3 hours, take it out, wash and dry, and granulate to obtain the finished product. The water absorption rate of this material is 654.1g / g, which is 327 times higher than the water absorption capacity of aeolian sandy soil.

[0025] The implementation usage of this material is the same as Example 1.

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Abstract

The invention relates to a macromolecular composite anatonosis storage-increment material and a preparation method thereof, belonging to the technical field of a water retaining agent. The macromolecular composite anatonosis storage-increment material consists of the following components by weight percent: 2 or 3 percent of humic acid, 82 or 83 percent of acrylic acid, 13 or 14 percent of carboxymethylcellulose, 0.02 percent of potassium persulfate, 0.01 percent of N-methylene bisacrylamide, and 0.01 percent of phosphite ester. The preparation method comprises the following steps: successively adding raw materials into a sodium hydroxide alkaline solution, and uniformly mixing, wherein the weight of the sodium hydroxide alkaline solution is greater than two times of the weight of the raw materials, and the concentration of the sodium hydroxide alkaline solution is 10 percent; introducing nitrogen for 15 to 30 minutes, stirring for 10 to 30 minutes at a speed of 500 turns per minute, facilitating the reaction for 2 to 4 hours at the room temperature, and finally drying in an oven at 40 to 60 DEG C. The macromolecular composite anatonosis storage-increment material can be used for the water retention and drought resistance of agricultural, forestry and garden plants, also can improve the soil structure, can increase the content of the organic nutrient humic acid of the soil by 0.03 to 0.05 percent, and can increase the water storage capacity to be about 325 to 392 times of the soil.

Description

technical field [0001] The invention belongs to the technical field of water-retaining agents, and in particular relates to a polymer resin material for increasing seepage and expanding storage, which is mainly used in crop water-retaining agents, soil seepage-proof and water-retaining films, and the like. Background technique [0002] Superabsorbent resin is a kind of functional polymer material that contains strong hydrophilic groups such as hydroxyl and carboxyl, and has a certain degree of crosslinking, water swelling and three-dimensional network structure. It is a new type of material that has developed rapidly in recent years. absorbent material. It is insoluble in water and organic solvents, and swells after absorbing water to form a hydrogel, which has certain strength and water retention. Compared with traditional water-absorbing materials, it has greater advantages. However, for the same super absorbent resin, due to different raw materials and different prepara...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/02C08F220/06C08F222/38C09K17/32C09K17/18C09K17/52C09K101/00
CPCC08F251/02C09K17/18C09K17/32C09K17/52C09K2101/00C08F220/06C08F222/385
Inventor 曹宁张玉斌潘洪玉邬乃鹏王斌高建恩杨世伟
Owner JILIN UNIV
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