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Sand-based air-permeable, water-controlling and anti-seepage particles and preparation method thereof

A particle and sand-based technology, applied in the field of new materials, can solve the problems of poor anti-seepage effect and high coating temperature, and achieve better waterproof and leakage effects, uniform coating and lower temperature

Active Publication Date: 2020-06-12
BEIJING QISINTAL NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of high temperature and poor anti-seepage effect of sand-based air-permeable, water-controlling and anti-seepage particles in the above-mentioned prior art, and to develop a low-temperature coating, good air permeability, water-controlling and anti-seepage Sand-based coated particles with good effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1 (prior art)

[0028] Heat 20 kg of aeolian sand with a particle size of 425 / 212 μm (40 / 70 mesh) to 120°C and put it into a self-made sand mixer for stirring, then add 102 grams of γ-aminopropyltrimethoxysilane after cooling to 70°C Stir for 20 minutes, add 306 grams of stearic acid and stir for 20 minutes, cool to disperse the particles, and cross a 30-mesh sieve. The water control and anti-seepage height of the test is 7.8cm, and the air permeability is 220Pa.

Embodiment 2

[0029] Embodiment 2 (bonding agent effect of the present invention)

[0030] Heat 20kg of aeolian sand with a particle size of 425 / 212μm (40 / 70 mesh) to 150°C and put it into a self-made sand mixer for stirring. After cooling to 130°C, add 100g of C5 petroleum resin and stir for 60 seconds, add water to cool Until the particles are dispersed, pass through a 30-mesh sieve. The water control and anti-seepage height is 9.4cm, and the air permeability is 230Pa.

Embodiment 3

[0031] Embodiment 3 (bonding agent of the present invention and coupling agent binding effect)

[0032] Heat 20 kg of aeolian sand with a particle size of 425 / 212 μm (40 / 70 mesh) to 150°C and put it into a self-made sand mixer for stirring, then add 4 grams of dodecyltrimethoxysilane and 200 grams of C5 petroleum resin was stirred for 70 seconds, cooled with water until the particles were dispersed, and passed through a 30-mesh sieve. The water control and anti-seepage height of the test is 12.6cm, and the air permeability is 210Pa.

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PUM

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Abstract

The invention relates to sand-based air-permeable water-control anti-seepage particles and a preparation method therefor. The air-permeable water-control anti-seepage particles comprise aggregates, acouplant, binder resin and polytetrafluoroethylene. The preparation method comprises the steps: heating the temperature of the aggregates to 100 DEG C to 200 DEG C, adding the binder resin and the couplant with stirring, and carrying out uniform stirring; then, adding the polytetrafluoroethylene, and carrying out uniform stirring; and carrying out cooling, sieving and packaging. According to the product disclosed by the invention, the problem in the prior art that sand-based air-permeable water-control anti-seepage particles are high in coating temperature and poor in anti-seepage effect is solved, and the sand-based coated particles can be coated at low temperatures and are good in air permeability and good in water-control anti-seepage effect.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular is a breathable and water-leakage-preventing material, which is used for air-breathing and water-leakage prevention in desert planting, riverbeds, lake bottoms, fish ponds, etc. its preparation method. Background technique [0002] Desertification has brought challenges to the sustainable use of land resources in my country, and seriously restricted the coordinated development of population, resources and environment in related regions and even the whole country. An effective way to control desertification is to increase vegetation coverage to achieve the purpose of water conservation and water and soil conservation. Water resources are scarce in sandy and dry areas, and it is difficult to divert water for irrigation. The high leakage and high evaporation of the soil itself in sandy and dry areas lead to low effective utilization of water resources and low plant survival ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/08A01G29/00
CPCA01G29/00C04B26/08C04B24/42C04B24/26C04B14/068
Inventor 朱永刚蒙传幼张伟民陈丽
Owner BEIJING QISINTAL NEW MATERIAL