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Seepage-proofing and air-permeable sand with super-hydrophobicity and high durability and preparation method of seepage-proofing and air-permeable sand

A super-hydrophobic and air-permeable sand technology, which is applied in the field of environmental engineering, can solve the problems of poor anti-seepage effect, poor durability, and easy adhesion of the surface of anti-permeation air sand, so as to improve the long-term effect, improve the impermeability, and improve the preparation process. simple effect

Inactive Publication Date: 2019-04-26
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a super-hydrophobic, high-durability anti-permeation air sand and its preparation method, which solves the problems of poor anti-seepage effect, easy adhesion on the surface, and poor dur

Method used

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  • Seepage-proofing and air-permeable sand with super-hydrophobicity and high durability and preparation method of seepage-proofing and air-permeable sand
  • Seepage-proofing and air-permeable sand with super-hydrophobicity and high durability and preparation method of seepage-proofing and air-permeable sand

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Heat 94 parts of quartz sand to 200°C, remove the moisture on the surface, and let it stand still; when it cools to 90°C, add it to the stirring pot, and add 4 parts of methyl silicone resin and 0.4 parts of diethylenetriamine Stir well; then add 1.2 parts of polytetrafluoroethylene and 0.4 parts of nano-SiO 2 , Stir evenly to produce super-hydrophobic, highly durable anti-permeation air sand.

Embodiment 2

[0024] Heat 93 parts of quartz sand to 180°C, remove the moisture on its surface, and let it stand still; when it cools to 80°C, add it to the stirring pot, and add 4 parts of phenolic resin and 0.4 parts of hexamethylenetetramine Stir well; then add 2 parts of polytetrafluoroethylene and 0.6 parts of nano-SiO 2 , Stir evenly to produce super-hydrophobic, highly durable anti-permeation air sand.

Embodiment 3

[0026] Heat 92 parts of quartz sand to 170°C, remove the moisture on the surface, and let it stand; when it cools to 70°C, add it to the stirring pot, and add 4.5 parts of polyamide modified epoxy resin and 0.45 parts of ethyl alcohol Stir the diamine evenly; then add 2.4 parts of polytetrafluoroethylene and 0.65 parts of nano-SiO 2 , Stir evenly to produce super-hydrophobic, highly durable anti-permeation air sand.

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Abstract

The invention relates to seepage-proofing and air-permeable sand with super-hydrophobicity and high durability and a preparation method of the seepage-proofing and air-permeable sand. The seepage-proofing and air-permeable sand comprises quartz sand and a hydrophobic film coating the surface of the quartz sand. The seepage-proofing and air-permeable sand is characterized in that the hydrophobic film is obtained through crosslinking and curing of hydrophobic resin, a curing agent, polytetrafluoroethylene and nano SiO2 on the surface of the quartz sand, and a micro-nano two-level rough structureis formed on the surface of the hydrophobic film. Compared with the prior art, the problems of poor seepage-proofing effect, poor durability and surface adhesion of the seepage-proofing and air-permeable sand are solved, and the seepage-proofing and air-permeable sand has characteristics of being simple to prepare and good in super-hydrophobicity, low adhesion and durability and has very wide application prospects.

Description

technical field [0001] The invention relates to the field of environmental engineering, in particular to a super-hydrophobic, highly durable anti-permeation air sand and a preparation method thereof. Background technique [0002] Water and land resources are the foundation of human development and civilization. At present, desertification has become the most serious ecological security problem in my country, restricting the progress of ecological civilization construction. How to remediate the deteriorating ecological environment, increase vegetation coverage, restore and rebuild the damaged ecosystem has become a major and urgent development topic in the construction of ecological civilization. [0003] For the ecological restoration of desert control, the focus is to prevent the leakage of surface water to improve the survival rate of vegetation. In order to take into account the respiration function of the soil while preventing seepage, so as to provide a good living en...

Claims

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Application Information

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IPC IPC(8): C04B41/50
CPCC04B41/009C04B41/5035C04B41/4846C04B41/46C04B41/4961C04B14/06
Inventor 张雄张恒王浩任
Owner TONGJI UNIV
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