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Corn straw cellulose-based water-absorbent resin composite material and preparation method thereof

A technology of corn stalk and water-absorbing resin is applied in the fields of polymer materials and agricultural biology, which can solve the problems of shortening the germination time of Chinese cabbage, achieve good water absorption and water retention functions, and shorten the germination time.

Pending Publication Date: 2021-11-23
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, there is no relevant report on compounding natural cellulose-based superabsorbent resin with montmorillonite, clay, bentonite, etc. to prepare composite materials that can be used to increase the germination rate of pakchoi and shorten the germination time of pakchoi

Method used

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  • Corn straw cellulose-based water-absorbent resin composite material and preparation method thereof
  • Corn straw cellulose-based water-absorbent resin composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Add carboxymethylated corn stalk cellulose MS-CMC (100.0g) and distilled water (3000.0mL) in turn to the reaction device (A), heat to 60°C under stirring, and after the MS-CMC dissolves, N 2 A mixture of potassium persulfate (6.3 g) and distilled water (1000.0 mL) was added under protection, stirred for 50 min and then cooled to 40°C.

[0027] Add acrylic acid (700.0g), 2-acrylamido-2-methylpropylsulfonic acid (50.0g), acrylamide (100.0g) and water (400.0mL) successively in another reaction device (B), stir Evenly, neutralize with sodium hydroxide to a neutralization degree of 70.0%, add it to the reaction device (A) for 60 minutes under stirring, and then put the pre-prepared cross-linking agent N,N'-methylenebis Add a mixture of acrylamide (1.40g) and water into the reaction device (A), react at 70°C for 6 hours under stirring, add ethanol to submerge the product, let it stand, and filter to obtain corn stalk cellulose-based water-absorbent resin (MSAP), 70 After dry...

Embodiment 2

[0029] Add MS-CMC (100.0g) and distilled water (3000.0mL) in sequence to the reaction device (A), heat to 60°C under stirring, add montmorillonite (6.0g) after MS-CMC dissolves, N 2 A mixture of potassium persulfate (6.3 g) and distilled water (1000.0 mL) was added under protection, stirred for 50 min and then cooled to 40°C.

[0030] Add acrylic acid (700.0g), 2-acrylamido-2-methylpropylsulfonic acid (50.0g), acrylamide (100.0g) and water (400.0mL) successively in another reaction device (B), stir Evenly, neutralize with sodium hydroxide to a neutralization degree of 70.0%, add it to the reaction device (A) for 60 minutes under stirring, and then put the pre-prepared cross-linking agent N,N'-methylenebis Add a mixture of acrylamide (1.40g) and water into the reaction device (A), react at 70°C for 6 hours under stirring, add ethanol to submerge the product, let it stand, and filter to obtain a corn stalk cellulose-based water-absorbent resin composite material (MSAP- 5), dryi...

Embodiment 3

[0032] Add MS-CMC (100.0g) and distilled water (3200.0mL) in sequence to the reaction device (A), heat to 60°C under stirring, add montmorillonite (3.5g) and clay (2.5g) after MS-CMC dissolves, N 2 A mixture of potassium persulfate (6.3 g) and distilled water (1200.0 mL) was added under protection, stirred for 50 min and then cooled to 40°C.

[0033]Add acrylic acid (700.0g), 2-acrylamido-2-methylpropylsulfonic acid (60.0g), acrylamide (85.0g) and water (400.0mL) successively in another reaction device (B), stir Evenly, neutralize with sodium hydroxide to a neutralization degree of 72.0%, add it to the reaction device (A) for 60 minutes under stirring, and then put the pre-prepared cross-linking agent N,N'-methylenebis Add a mixture of acrylamide (1.60g) and water into the reaction device (A), react at 70°C for 6 hours under stirring, add ethanol to submerge the product, let it stand, and filter to obtain a corn stalk cellulose-based water-absorbent resin composite material (...

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Abstract

The invention belongs to the technical field of high polymer materials and agricultural biology, and particularly relates to a corn straw cellulose-based water-absorbent resin composite material and a preparation method thereof. The invention provides the corn straw cellulose-based water-absorbent resin composite material. The composite material is prepared by introducing a modifying substance in the process of preparing corn straw cellulose-based water-absorbent resin, wherein the modifying substance is at least one of montmorillonite, bentonite or clay, and the mass of the modifying substance does not exceed 1.0% of the mass of the corn straw cellulose-based water-absorbent resin. The obtained composite material has good water absorption and water retention functions, and under the assistance of the water-absorbent resin composite material, the germination rate of pakchoi can be increased and the germination time can be shortened without soaking pakchoi seeds. In the same environment, under the assistance of the super absorbent resin, the germination rate of the pakchoi is increased by 20% or above, and the germination time of the pakchoi is shortened by 4 days.

Description

technical field [0001] The invention belongs to the field of polymer materials and agricultural biotechnology, and in particular relates to a corn straw cellulose-based water-absorbing resin composite material and a preparation method thereof. The obtained composite material can increase the germination rate of pakchoi and shorten the germination time of pakchoi. Background technique [0002] my country is a country with a large population, but the arable land resources are limited, so the healthy development of agriculture is very important to the sustainable development of my country's economy and society. Super-absorbent polymer (SAP), as a polymer material with a three-dimensional network pore structure, has high water absorption and water retention properties, and is widely used in agriculture, forestry, horticulture, medicine and health, petrochemicals, building materials and intelligent manufacturing Among them, it is mainly used in agriculture, forestry and horticult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/02C08F220/06C08F220/56C08F220/58C08F222/38
CPCC08F251/02C08F220/06C08F220/56C08F220/585C08F222/385
Inventor 钟柳唐巧林黄小川戴丽雯覃嘉敏郭芸芸杨玲黄睿张婷婷刘治国
Owner XIHUA UNIV