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Superhydrophobic agent for seepage prevention and water storage of sandy soil, and preparation method and application thereof

A sandy soil and super-repellent technology, applied in the field of ecological environment, can solve the problems of poor hydrophobic effect of hydrophobic agent, loss of hydrophobic function type, and easy peeling of hydrophobic film, so as to improve water retention and storage capacity, optimize film formation, The effect of optimizing construction performance

Inactive Publication Date: 2019-09-27
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the hydrophobic effect of the superhydrophobic agent is not good, and its adhesion to the substrate is poor. When used for a long time, the hydrophobic film formed by the superhydrophobic agent is easy to fall off, which leads to the loss of the hydrophobic function.

Method used

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  • Superhydrophobic agent for seepage prevention and water storage of sandy soil, and preparation method and application thereof
  • Superhydrophobic agent for seepage prevention and water storage of sandy soil, and preparation method and application thereof

Examples

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preparation example Construction

[0030] The preparation method of the above-mentioned superhydrophobic agent for anti-seepage and water storage of sandy soil comprises the following steps:

[0031] (1) adding a part of the nano-scale powdery material into the hydrophobic resin, stirring evenly, and ultrasonically dispersing to prepare the mixture A;

[0032] (2) adding the remaining nano-scale powdery material into the curing agent, stirring evenly, and ultrasonically dispersing to prepare the mixture B;

[0033] (3) Add mixture B to mixture A and stir evenly to obtain mixture C;

[0034] (4) Add the diluent into the mixture C, stir evenly, and adjust to a suitable viscosity to obtain the superhydrophobic agent for anti-seepage and water storage of sandy soil.

[0035] Preferably, in order to ensure the uniformity of mixing the nanoscale powdery material in the hydrophobic resin and the curing agent, the mass ratio of the nanoscale powdery material in the mixture A and the mixture B is 3-5:1.

[0036] Prefe...

Embodiment 1

[0040] Step 1: Preparation of superhydrophobic agent for anti-seepage water storage of sandy soil:

[0041] (1) 8 parts of nano-SiO with a particle size of 10-80nm 2 Add 60 parts of silicone-modified phenolic resin, stir evenly, and ultrasonically disperse for 30 minutes to prepare mixture A

[0042] (2) 2 parts of nano-SiO with a particle size of 10-80nm 2 Add 10 parts of hexamethylenetetramine, stir evenly, and ultrasonically disperse for 30 minutes to prepare mixture B;

[0043] (3) Add mixture B to mixture A and stir evenly to obtain mixture C;

[0044](4) Add 20 parts of ethyl acetate into the mixture C, stir evenly, and adjust the viscosity to about 3500mPa·S to obtain the superhydrophobic agent for planting in sandy soil.

[0045] Step 2: Construction of superhydrophobic agent:

[0046] Dig a planting trough with a diameter of 15cm and a depth of 20cm in sandy soil, spray the superhydrophobic agent on the bottom and surroundings of the planting trough, and after the...

Embodiment 2

[0048] Step 1: Preparation of superhydrophobic agent for anti-seepage water storage of sandy soil:

[0049] (1) 8 parts of nano-ZnO with a particle size of 10-80nm 2 Add 65 parts of silicone-modified acrylic resin, stir evenly, and ultrasonically disperse for 30 minutes to prepare mixture A;

[0050] (2) 2 parts of nano-ZnO with a particle size of 10-80nm 2 Add 10 parts of pyridine, stir evenly, and ultrasonically disperse for 30 minutes to prepare mixture B;

[0051] (3) Add mixture B to mixture A and stir evenly to obtain mixture C;

[0052] (4) Add 15 parts of acetone into the mixture C, stir evenly, and adjust the viscosity to about 4000mPa·S to obtain the superhydrophobic agent for planting in sandy soil.

[0053] Step 2: Construction of superhydrophobic agent:

[0054] Dig a planting trough with a diameter of 15cm and a depth of 20cm in sandy soil, spray the superhydrophobic agent on the bottom and surroundings of the planting trough, and after the superhydrophobic a...

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Abstract

The invention relates to a superhydrophobic agent for seepage prevention and water storage of sandy soil, and a preparation method and an application thereof. The superhydrophobic agent comprises, by weight, 60-70 parts of a hydrophobic resin, 5-15 of a curing agent, 15-25 parts of a diluents and 10-20 parts of a nano-sized powdery material. The superhydrophobic agent is sprayed on the surface of sandy soil, and forms a superhydrophobic film with a low surface energy and a nano-sized rough structure on the surface of the soil in the process of curing film formation of the hydrophobic resin, so downward infiltration of water in the soil in a sandy soil environment is effectively prevented. Compared with superhydrophobic agents in the prior art, the superhydrophobic agent of the invention can improve the water retention and water storage capacity of the sandy soil in order to improve the utilization rate of water resources and the survival rate of plants in the sandy soil environment, and also has the advantages of simple preparation method, simple construction process and very broad application prospect.

Description

technical field [0001] The invention relates to the field of ecological environment, in particular to a superhydrophobic agent for anti-seepage water storage of sandy soil and a preparation method thereof. Background technique [0002] How to manage the increasingly severe ecological environment is not only an economic and social issue that cannot be ignored by human society, but also an era issue related to sustainable development. my country is one of the countries with the most severe desertification in the world. The desert area is dry all year round and the rainfall is scarce. In addition, the sandy soil structure is loose and the water retention and storage capacity is lacking, which makes the water in the sandy soil area leak rapidly, and the sandy soil cannot be retained. Sufficient water resources are available for plant growth, so the survival rate of plants in this environment is extremely low. [0003] In order to solve the problem of water leakage in sandy soil,...

Claims

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Application Information

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IPC IPC(8): C09D161/14C09D133/04C09D163/00C09D7/61C09K17/40C09K107/00
CPCC08K2003/2227C08K2003/2296C09D7/61C09D133/04C09D161/14C09D163/00C09K17/40C09K2107/00C08K3/36C08K3/22
Inventor 张雄张恒
Owner TONGJI UNIV
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