Porous material for desert afforestation and water retention and preparation method thereof

A technology of water-retaining materials and raw materials, which is applied in the fields of botanical equipment and methods, soil conditioning materials, chemical instruments and methods, etc., can solve the problems of water absorption and water-retention effect of materials need to be improved, toxic and harmful substances, and long reaction period, and achieve excellent water retention. effect, avoid the problem of environmental pollution, the effect of simple preparation method

Inactive Publication Date: 2021-09-07
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main problem of superabsorbent resin materials at present is that there is still a large amount of irrigation water leakage during use, and the water absorption and water retention effect of the material still needs to be improved.
[0004] Emulsion polymerization and suspension polymerization are the main production methods of water-retaining materials at present, but the above-mentioned methods need to use components such as crosslinking agents and initiators to realize polymerization during preparation, so there is inevitably a shortcoming of long reaction cycle
At the same time, the above method also has the problem of complex components, especially the initiators and crosslinking agents are mostly toxic and harmful substances, and the residues in the water-absorbing materials will also cause harm to the environment during the actual application of the materials.

Method used

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  • Porous material for desert afforestation and water retention and preparation method thereof
  • Porous material for desert afforestation and water retention and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A porous material for desert water retention, the raw material includes the following components in parts by mass:

[0040] 100 parts of acrylic acid, 0.5 parts of cetyl dimethyl benzyl ammonium chloride, 1 part of inorganic matter, 0.04 parts of surfactant and 0.3 parts of porogen.

[0041] The inorganic matter used is loess; the surfactant used is gamma-glycidyl etheroxypropyl trimethoxysilane; the porogen used is polyvinylpyrrolidone.

[0042] The preparation process of the porous material for desert water retention is as follows:

[0043] (1) Stirring and reacting the inorganic substance and the surfactant at 125°C for 8 minutes to obtain material A;

[0044] (2) Weigh acrylic acid in a beaker, slowly add sodium hydroxide solution for neutralization, until the pH of the solution system is 6, then transfer the solution to a nitrogen environment, and add material A, cetyl dimethyl benzyl ammonium chloride and porogen, stirred evenly, and irradiated with high-energy ...

Embodiment 2

[0047] A porous material for desert water retention, the raw material includes the following components in parts by mass:

[0048] 100 parts of acrylic acid, 1.6 parts of cetyl dimethyl benzyl ammonium chloride, 1.2 parts of inorganic substances, 0.01 parts of surfactant and 1.2 parts of porogen.

[0049] The inorganic matter used is a mixture of clay, wollastonite, loess and other mass ratios; the surfactant used is polyoxyethylene monoalkyl phosphate; the porogen used is polyurethane.

[0050] The preparation process of the porous material for desert water retention is as follows:

[0051] (1) Stirring and reacting the inorganic substance and the surfactant at 130°C for 15 minutes to obtain material A;

[0052] (2) Weigh acrylic acid in a beaker, slowly add sodium hydroxide solution for neutralization, until the pH of the solution system is 5.5, then transfer the solution to a nitrogen environment, and add material A, cetyl dimethyl benzyl ammonium chloride and porogen, st...

Embodiment 3

[0055] A porous material for desert water retention, the raw material includes the following components in parts by mass:

[0056] 100 parts of acrylic acid, 1.8 parts of cetyl dimethyl benzyl ammonium chloride, 1.3 parts of inorganic substances, 0.02 parts of surfactant and 1.4 parts of porogen.

[0057] The inorganic matter used is a mixture of fly ash and loess at a mass ratio of 1:2; the surfactant used is γ-glycidyl etheroxypropyl trimethoxysilane; the porogen used is polyurethane.

[0058] The preparation process of the porous material for desert water retention is as follows:

[0059] (1) Stirring and reacting the inorganic substance and the surfactant at 135°C for 13 minutes to obtain material A;

[0060] (2) Weigh acrylic acid in a beaker, slowly add sodium hydroxide solution for neutralization, until the pH of the solution system is 6, then transfer the solution to a nitrogen environment, and add material A, cetyl dimethyl benzyl ammonium chloride and porogen, stirre...

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PUM

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Abstract

The invention discloses a porous material for desert afforestation and water retention and a preparation method thereof, and belongs to the technical field of desert water retention. Specifically, the raw materials comprise acrylic acid, hexadecyl dimethyl benzyl ammonium chloride, an inorganic substance, a surfactant and a pore-foaming agent. The preparation method comprises the following steps: firstly, modifying an inorganic matter by using the surfactant, then adding the inorganic matter, hexadecyl dimethyl benzyl ammonium chloride and the pore-foaming agent into an acrylate system, performing high-energy electron beam irradiation in a protective atmosphere, and drying an obtained polymer to constant weight, thereby obtaining the porous material for water retention. The raw materials are simple in variety, safe and harmless, the reaction can be completed within several seconds, the preparation method is simple and controllable, the water retention effect of the material is excellent, super-strong water absorption can be achieved, and the application requirements of extremely water-deficient desert areas can be met.

Description

technical field [0001] The invention relates to the technical field of afforestation and water conservation in desert areas, in particular to a porous material for desert afforestation and water conservation and a preparation method thereof. Background technique [0002] Preventing the loss of water resources and saving and retaining water are the problems that must be solved to improve the survival rate of afforestation plants in desert areas. [0003] At present, when solving the problems related to water resources in desert areas at home and abroad, the main water-absorbent material used is super-absorbent resin. Super-absorbent resin mainly has two characteristics: 1. High water absorption, which can absorb thousands of times its own weight in a short time 2. Slowly release the absorbed water. The above two characteristics can prevent the rapid seepage and evaporation of irrigation water and improve the survival rate of plants. However, the main problem existing in sup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40A01G25/00C09K105/00C09K101/00
CPCC09K17/40A01G25/00C09K2105/00C09K2101/00
Inventor 党晓宏蒙仲举高永刘阳韩彦隆刘博哈琴迟旭王浩李元昊
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY
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