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Soil surface modifier and preparation method thereof

A modifier and surface layer technology, applied in the field of soil surface modifier and its preparation, can solve the problems of not having the prospect of large-scale use and promotion, increasing the cost of dust suppression covering agent and the like, and achieving the benefit of large-scale production , Excellent moisturizing type, the effect of avoiding heat accumulation

Inactive Publication Date: 2015-06-10
北京安平联合环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the Chinese invention patent "Preparation Method of Dust Suppression Covering Agent" (application number: 201110450309.7, application date: December 29, 2011, applicant: Nanjing University of Technology) discloses a dust suppression covering agent preparation method, but in this method, after the starch gelatinization treatment, a large amount of nitrogen gas is introduced into the reactor to replace the air therein. Due to the high price of nitrogen gas, this greatly increases the cost of the dust suppression covering agent and does not have Prospects for large-scale use and dissemination

Method used

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  • Soil surface modifier and preparation method thereof
  • Soil surface modifier and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of soil surface modifier, the raw material of described modifier comprises cornstarch, acrylic acid, acrylamide, initiator, linking agent and water, and the weight fraction ratio of described each raw material is:

[0029]

[0030] Further, the initiator is potassium persulfate, sodium bisulfite or a mixture of both.

[0031] Further, the crosslinking agent is sodium hydroxide, potassium hydroxide or a mixture of both.

[0032] The preparation method of the soil surface modifier comprises the following steps:

[0033] 1) Take 60%-75% of the above-mentioned cornstarch, emulsify the cornstarch at 85°C, then take the acrylic acid and acrylamide according to the above weight ratio, mix well, and wait until the temperature drops to 45°C-55°C , add the initiator and react at constant temperature for 3 hours to obtain component 1;

[0034] 2) Take the remaining corn starch, gelatinize the corn starch at 85°C, and then add the cross-linking agent to the gelatinized ...

Embodiment 2

[0041] This embodiment is an improvement made on the basis of Embodiment 1. For the same part as Embodiment 1 in this embodiment, please refer to the content disclosed in Embodiment 1 for understanding, and the content disclosed in Embodiment 1 should also be regarded as this embodiment. content, which will not be repeated here.

[0042] The weight fraction ratio of each raw material is:

[0043]

[0044] The preparation method of the soil surface modifier comprises the following steps:

[0045] 1) Take 65% of the above-mentioned corn starch, emulsify the corn starch at 85°C, then take the acrylic acid and acrylamide according to the above weight ratio, mix well, and when the temperature drops to 50°C, add the trigger agent, constant temperature reaction for 3 hours, to obtain component 1;

[0046] 2) Take the remaining corn starch, gelatinize the corn starch at 85°C, and then add the cross-linking agent to the gelatinized corn starch to obtain component 2;

[0047] 3) M...

Embodiment 3

[0054] This embodiment is an improvement made on the basis of Embodiment 1. For the same part as Embodiment 1 in this embodiment, please refer to the content disclosed in Embodiment 1 for understanding, and the content disclosed in Embodiment 1 should also be regarded as this embodiment. content, which will not be repeated here.

[0055] The weight fraction ratio of each raw material is:

[0056]

[0057] In order to detect the performance of the modifier, the product quality detection of the inhibitor was carried out. Test items include: appearance and sensory properties (odor, color, magazines), density, viscosity, pH value, solids, skin irritation, lightning, acute oral toxicity test, dust suppression effect (wind erosion rate, thickness of cured layer), Grafting efficiency and water absorption to distilled water, its test results are shown in Table 3:

[0058]

[0059]

[0060] In addition, heavy metal content detection (total mercury, total cadmium, total lead,...

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Abstract

The invention provides a soil surface modifier and a preparation method thereof. The modifier comprises raw materials including corn starch, acrylic acid, acrylamide, an initiator, a crosslinking agent and water. The preparation process of the soil surface modifier comprises the step of fully mixing and emulsifying each component by adopting an ultrasonic emulsification technique. The soil surface modifier disclosed by the invention can be applied to any bare ground such as building sites, bare lands, mounds, sand piles and the like, and has the effects of wind prevention and sand fixation and moisture preservation on surface soils. Moreover, the modifier has very low heavy metal content, can be degraded, and belongs to eco-friendly products.

Description

technical field [0001] The invention belongs to the field of soil modifiers, in particular to a soil surface modifier and a preparation method thereof. Background technique [0002] With the rapid development of the economy and the acceleration of urbanization, the speed of infrastructure construction in my country has also been accelerated. Due to the construction projects of transportation, electric power, and water conservancy, a large number of exposed slopes and grounds have been formed. These exposed slopes and grounds not only affect the ecological environment and landscape, destroying the natural ecological balance, but also expose a large amount of dust, causing great pollution to the environment, and there are serious hidden dangers of geological disasters, which affect the safety and stability of construction projects and affect the work. Increased threat to the health of personnel and surrounding residents. Therefore, it is of great practical significance to str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/32C09K3/22C09K105/00
Inventor 何玉萍
Owner 北京安平联合环保科技有限公司
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