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Waterproof and breathable paint composition, waterproof and breathable material and preparation method thereof

A waterproof, breathable and composite technology, applied in water conservancy projects, sea area projects, construction, etc., can solve problems such as leakage, blocking gas exchange at the bottom, and preservation

Inactive Publication Date: 2017-05-03
RENCHSAND ECO ENVIRONMENT PROTECTION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, in order to solve the leakage of surface fresh water resources such as lakes, the anti-seepage layer is mainly used. The existing anti-seepage materials are roughly divided into bentonite waterproof blanket, composite geomembrane, natural clay, etc., and its main technical characteristics are Prevent water seepage, but the existing anti-seepage layer also blocks the gas exchange at the bottom, which cannot keep the water fresh

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0043] The present disclosure also provides a method for preparing a waterproof and breathable material, the method comprising: mixing the above-mentioned waterproof coating composition evenly, spraying it on the upper surface of a flexible substrate, scraping and drying to obtain the waterproof and breathable material.

[0044] The methods and devices for spraying, scraping and drying described herein are well known to those skilled in the art, and will not be repeated here.

Embodiment 1

[0048] This example is used to illustrate the waterproof and breathable coating composition of the present disclosure.

[0049] Hydroxyethyl cellulose is prepared into a 2% by weight aqueous solution for use, and the preparation method includes: adding 1% bactericide (environmental protection type bactericide, manufacturer: Sunrise, Hebei, product number: RC-01) to clear water, and stirring evenly Finally, add hydroxyethyl cellulose for stirring. After the cellulose dissolves, add a neutralizer (environmental protection neutralizer, manufacturer: Hebei Sunrise, product number: RC-95) to adjust the pH value to 8-9 , let stand for 24h.

[0050] Take 100 parts by weight of breathable anti-seepage particles (70 / 140 breathable and anti-seepage sand), 33 parts by weight of binder polyurethane modified acrylic emulsion, 8.3 parts by weight of auxiliary binder cement, 0.04 parts by weight of water reducing agent, and 8.3 parts by weight of water Mixed uniformly with 8.3 parts by weig...

Embodiment 2

[0052] Take 100 parts by weight of air-permeable and anti-seepage particles (70 / 140 air-permeable and anti-seepage sand: the weight ratio of 100 / 200 air-permeable and anti-seepage sand is 2:1), 100 parts by weight of binder polyurethane modified acrylic emulsion, 20 parts by weight of auxiliary adhesive Binder cement, 0.1 parts by weight of water reducing agent and 16.7 parts by weight of water were uniformly mixed to obtain the waterproof and breathable coating composition C2 of this embodiment.

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PUM

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Abstract

The invention relates to a waterproof and breathable paint composition, a waterproof and breathable material and a preparation method thereof. The composition comprises breathable impermeable particles, a binder and an assistant binder. Relative to 100 parts by weight of the breathable impermeable particles, the content of the binder is 20-150 weight parts, and the content of the assistant binder is 5-40 weight parts. The binder is an acrylic emulsion copolymer and a silicone acrylic emulsion in a weight ratio of 1:(0.1-5); the assistant binder is at least one of cement, a waterborne epoxy emulsion and a waterborne polyurethane emulsion, and the breathable impermeable particles have a ventilating volume of more than 80mL / (cm<3>.s). The waterproof and breathable paint composition disclosed by the invention contains the binder and breathable impermeable particles of specific components, and can be prepared into a waterproof and breathable material with good breathability and excellent waterproof effect. The waterproof and breathable material has better breathability than ordinary geomembranes, has the advantages of simple and convenient paving, and small dosage of raw materials, and can be applied to riverway paving, desert planting, urban rainwater collection and other fields.

Description

technical field [0001] The present disclosure relates to the field of anti-seepage technology, in particular, to a waterproof and breathable coating composition, a waterproof and breathable material and a preparation method thereof. Background technique [0002] my country's water resources are particularly scarce, with a total volume of 28 trillion cubic meters and a per capita water resource of only 2,170 cubic meters, which is less than a quarter of the world's average level. It is one of the 13 water-poor countries in the world. In my country, available water sources mainly include river water, freshwater lake water and shallow groundwater. [0003] For surface freshwater resources such as rivers and lakes, water loss is mainly due to evaporation and seepage. According to incomplete statistics, seepage accounts for about 80% of water loss. In the existing technology, in order to solve the leakage of surface fresh water resources such as lakes, the anti-seepage layer is ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B14/06C04B20/10E02B3/16
CPCC04B28/00C04B14/06C04B20/1037C04B2111/00267C04B2111/27E02B3/16C04B24/2641C04B2103/302C04B22/002C04B24/383C04B2103/67C04B2103/0094
Inventor 秦升益刘川宋小宁
Owner RENCHSAND ECO ENVIRONMENT PROTECTION SCI & TECH CO LTD