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High-efficiency environmental-protection type water-retaining agent for garden greening and preparation method thereof

A landscaping and water-retaining agent technology, which is applied in the fields of landscaping and ecological environmental protection, can solve the problems of slab soil formation, lack of efficient water-retaining agent, environmental hazards, etc., and achieves high reaction efficiency, important environmental protection significance and economic value, and salt tolerance. good effect

Inactive Publication Date: 2014-10-08
辽宁易发成林生态技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the sodium-type water-retaining agent is applied to the soil for a long time, the sodium ion content in the soil will be too high, which will cause the soil to accumulate, which will cause harm to plant growth and the environment.
[0008] Therefore, the market lacks a special high-efficiency water-retaining agent suitable for landscaping

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The present embodiment prepares the high-efficiency environment-friendly water-retaining agent for landscaping according to the following steps:

[0034] a. First add 30 parts of acrylic acid to the neutralization mixer, and add a potassium hydroxide solution with a mass concentration of 20% (20g KOH mixed with 80g water) into the neutralization reactor under stirring, and neutralize the pH under ice bath conditions value to 6.8, control the maximum temperature of the reaction not to exceed 60°C, and make an acrylate solution;

[0035] b. Then add 5 parts of nutritional additives, and after being dissolved, add 100 parts of carboxymethyl cellulose aqueous solution and 10 parts of crosslinking agent aqueous solution, and stir evenly.

[0036] c. Continuously feed nitrogen gas with a flow rate of 3 to 7 liters / minute into the mixed solution to remove the air in the mixed solution, then increase the temperature of the mixed solution to 30°C and react for 0.5 hours;

[003...

Embodiment 2

[0043] The present embodiment prepares the high-efficiency environment-friendly water-retaining agent for landscaping according to the following steps:

[0044] a. First add 40 parts of acrylic acid to the neutralization mixer, add 20% ammonia solution with a mass concentration of 20% to the neutralization reactor under stirring, neutralize the pH value to 7.0 under ice bath conditions, and control the maximum temperature of the reaction. Over 60°C to make acrylate solution;

[0045] b. Then add 11 parts of nutritional additives, after being dissolved, then add 120 parts of carboxymethyl cellulose aqueous solution and 10 parts of crosslinking agent aqueous solution, and stir evenly.

[0046] c. Continuously feed nitrogen into the mixture at a flow rate of 3-7 liters / min to remove the air in the mixture, then increase the temperature of the mixture to 35° C., and react for 0.65 hours;

[0047]d. Add 10 parts of initiator aqueous solution, stir evenly and slowly control the tem...

Embodiment 3

[0050] The present embodiment prepares the high-efficiency environment-friendly water-retaining agent for landscaping according to the following steps:

[0051] a. First add 50% acrylic acid to the neutralization mixer, add 40% potassium hydroxide solution to the neutralization reactor under stirring, neutralize the pH value to 7.2 under ice bath conditions, and control the maximum temperature of the reaction. Over 60°C, make acrylate solution;

[0052] b. Then add 17 parts of nutritional additives. After being dissolved, add 150 parts of carboxymethyl cellulose aqueous solution and 12 parts of crosslinking agent aqueous solution, and stir evenly.

[0053] c. Continuously feed nitrogen gas with a flow rate of 3 to 7 liters / min into the mixed solution to remove the air in the mixed solution, then increase the temperature of the mixed solution to 40°C and react for 0.5 hours;

[0054] d. Add 8 parts of initiator aqueous solution, stir evenly and slowly control the temperature a...

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Abstract

The invention relates to the fields of garden greening and ecological environment protection, and particularly relates to a high-efficiency environmental-protection type water-retaining agent for garden greening and a preparation method thereof. The water-retaining agent is composed of the following substances in parts by weight: carboxymethyl cellulose, industrial-grade acrylic acid, a neutralizing agent, a nutritional additive, an initiator, and a cross-linking agent. The preparation method of the water-retaining agent comprises the steps: adopting acrylic acid as a monomer and an alkali liquor as the neutralizing agent, adopting an aqueous solution polymerization method, taking carboxymethyl cellulose and the nutritional additive as raw materials, adding the cross-linking agent and the initiator, under a nitrogen atmosphere protection, cross-linking, carrying out a polymerization reaction, drying, and smashing to obtain the product. The water-retaining agent has the advantages of simple production process, low cost, high water absorption, nutritional type, degradability, environmental protection, no toxicity and the like, has significant effects on drought resistance, soil moisture conservation, soil improvement, tree planting, grass planting and the like, and can be widely applied to garden nursery production, greening engineering construction, green space maintenance and many other garden greening fields.

Description

technical field [0001] The invention relates to the fields of landscaping and ecological environment protection, in particular to a high-efficiency and environment-friendly water-retaining agent for landscaping and a preparation method thereof. Background technique [0002] With the process of urbanization, the area of ​​urban green space continues to expand, and the work of garden construction and green space management becomes more and more arduous, which consumes a lot of water resources. According to the statistics of Xinhui Garden Management Office in 2006, maintaining 1ha of urban green space consumes 1500m a year 3 The total cost of water purification and spraying (water, machinery and labor costs) is 5925.00 yuan / ha, and the total cost of spraying accounts for 16.9% of the total cost of green space maintenance. Therefore, giving full play to the role of water-retaining agents in landscaping—water saving, water retention and fertilizer improvement, and soil improveme...

Claims

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Application Information

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IPC IPC(8): C09K17/32C08F251/02
Inventor 苗永刚邹江宁孙仲桂卢麟麟董博王立丰
Owner 辽宁易发成林生态技术有限公司
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