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Acrylamide-alginate sand stabilization and water retention agent and preparation method thereof

A technology of acrylamide and alginic acid, which is applied in chemical instruments and methods, other chemical processes, applications, etc., can solve the problems of high implementation cost, large manpower and material resources

Inactive Publication Date: 2020-04-07
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such sand-fixing methods have great limitations due to the high cost of implementation and the large cost of manpower and material resources.

Method used

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  • Acrylamide-alginate sand stabilization and water retention agent and preparation method thereof
  • Acrylamide-alginate sand stabilization and water retention agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of acrylamide-alginate type sand-fixing and water-retaining agent, its preparation comprises the steps:

[0027] Step 1. Mix 25g sodium alginate, 5g konjac glucomannan and water, heat up and stir until completely dissolved to obtain the first reaction feed liquid; mix 70g acrylamide and water, heat up and stir until completely dissolved to obtain the second reaction Liquid;

[0028] Step 2: Add the second reaction feed liquid in the first reaction feed liquid, stir and mix evenly and then add ammonium persulfate thereto (in terms of the volume of every liter of reaction feed liquid, its addition is 3.5g), stir until the initiator is completely After dissolving, add a cross-linking agent (the amount added is 2 g per liter of reaction feed liquid volume) to obtain a reaction feed liquid, react the reaction feed liquid at 25°C for 6 hours under stirring, and then add iron oxide green therein (The amount of the coloring agent added is 10 g per liter of reaction feed...

Embodiment 2

[0030] A kind of acrylamide-alginate type sand-fixing and water-retaining agent, its preparation comprises the steps:

[0031] Step 1. Mix 13g of sodium alginate, 2g of konjac glucomannan and water, heat up and stir until completely dissolved to obtain the first reaction feed liquid; mix 85g of acrylamide and water, heat up and stir until completely dissolved to obtain the second reaction Liquid;

[0032] Step 2: Add the second reaction feed liquid in the first reaction feed liquid, stir and mix evenly, then add ammonium persulfate (in terms of the volume of every liter of reaction feed liquid, its addition is 3.8g), stir until the initiator is completely After dissolving, add a cross-linking agent (2.7 g per liter of reaction feed liquid volume) to obtain a reaction feed liquid, react the reaction feed liquid at 28°C for 6.5 hours under stirring, and then add an oxidizing agent to it. Iron green (the amount of coloring agent added per liter of reaction feed liquid volume is ...

Embodiment 3

[0034] A kind of acrylamide-alginate type sand-fixing and water-retaining agent, its preparation comprises the steps:

[0035] Step 1. Mix 12g of sodium alginate, 5g of konjac glucomannan and water, heat up and stir until completely dissolved to obtain the first reaction feed liquid; mix 83g of acrylamide and water, heat up and stir until completely dissolved to obtain the second reaction Liquid;

[0036] Step 2: Add the second reaction feed liquid in the first reaction feed liquid, stir and mix evenly, then add ammonium persulfate (in terms of the volume of every liter of reaction feed liquid, its addition is 3.8g), stir until the initiator is completely After dissolving, add a cross-linking agent (2.7 g per liter of reaction feed liquid volume) to obtain a reaction feed liquid, react the reaction feed liquid at 28°C for 6.5 hours under stirring, and then add an oxidizing agent to it. Iron green (the amount of coloring agent added per liter of reaction feed liquid volume is ...

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Abstract

The invention relates to an acrylamide-alginate sand stabilization and water retention agent and a preparation method thereof. The preparation method comprises the following steps: S1, sodium alginate, konjac glucomannan and a first reaction solvent are mixed, heated and stirred until complete dissolution to obtain a first reaction feed liquid, and acrylamide and a second reaction solvent are mixed, heated and stirred until complete dissolution to obtain a second reaction feed liquid; S2, the second reaction feed liquid is added into the first reaction feed liquid, an initiator is added afterthe two feed liquids are stirred and mixed well, a cross-linking agent is added after the initiator is completely dissolved, a reaction feed liquid is obtained, the reaction feed liquid is subjected to reaction under stirring for a period of time, a coloring agent is added, and the reaction feed liquid and the coloring agent are stirred and mixed well to obtain the acrylamide-alginate sand stabilization and water retention agent. The sand stabilization and water retention agent provided by the invention has excellent comprehensive performance.

Description

technical field [0001] The invention relates to the technical field of chemical sand-fixing agents, in particular to an acrylamide-alginate sand-fixing and water-retaining agent and a preparation method thereof. Background technique [0002] Land desertification is a manifestation of land degradation, which usually occurs in arid, semi-arid and sub-humid dry areas, and is caused by human activities, climate change and other factors. [0003] The area of ​​deserts and deserts in my country is relatively large, especially in the northwest region. The total area of ​​deserts in China accounts for about 13% of the total land area (including the sandy land in the Gobi and semi-arid areas), reaching 1.308 million square kilometers, and the land desertification is still increasing. There is a tendency to gradually expand. [0004] The harm of land desertification is very significant. It aggravates the deterioration of natural ecological resources, increases the probability of natur...

Claims

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Application Information

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IPC IPC(8): C08F251/00C08F220/56C09K17/32C09K105/00
CPCC08F251/00C09K17/32C09K2105/00C08F220/56
Inventor 樊李红陈晓静何广华卢昆宁校庆
Owner WUHAN UNIV OF TECH
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