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Bionic water-collecting composite braided fabric and its preparation method and use

A woven cloth and water collection technology, applied in textiles and papermaking, fabrics, textiles, etc., can solve the problems of inability to meet the needs of water, low water collection efficiency, and high cost, and achieve improved efficiency, good outdoor stability, and difficulty in Degradation effect

Inactive Publication Date: 2006-12-20
INST OF CHEM CHINESE ACAD OF SCI
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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 overcome the defects of the prior art that the water collection efficiency is not high, cannot meet the needs of water in the vast water-shortage areas, and the cost is high, and it is not environmentally friendly, thereby providing a water-repellent area with a hydrophilic area and a water-repellent area. Film structure, can efficiently collect tiny water droplets in the air to make it usable fresh water, and can defog bionic water-collecting composite woven fabric

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Bionic water-collecting composite braided fabric and its preparation method and use
  • Bionic water-collecting composite braided fabric and its preparation method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 1) Preparation of hydrophilic / hydrophobic polymer fibers:

[0053] 80 parts by weight of nylon 4 and 20 parts by weight of titanium dioxide particles (commercially available) with an average particle diameter of 100 μm are mixed uniformly, and then added to a common spinning machine to melt and spin out a fiber with a semicircular cross-section of 1 mm in diameter. Many fine protrusions of titanium dioxide particles are formed on the surface.

[0054] 80 parts by weight of polypropylene resin (commercially available) and 20 parts by weight of an average particle diameter of 100nm silicon dioxide particles (commercially available) are mixed uniformly, and then added to the spinning machine to melt and spin out a fiber with a semicircular cross-section of 2mm in diameter , the surface of this fiber is smooth and flat.

[0055] 2) Prepare composite woven cloth:

[0056] On the weaving machine, the two kinds of polymer fibers made in step 1) such as figure 1 Weaving as s...

Embodiment 2

[0059] 1) Preparation of hydrophilic / hydrophobic polymer fibers:

[0060] 70 parts by weight of polyvinylpyrrolidone and 30 parts by weight of titanium dioxide particles (commercially available) with an average particle diameter of 50 μm are uniformly mixed, and then added to a common spinning machine to melt and spin fibers with a semicircular cross-section of 2 mm in diameter. Many fine protrusions of titanium dioxide particles are formed on the surface.

[0061] 80 parts by weight of polypropylene resin and 20 parts by weight of the average particle diameter of 50nm silica particles (commercially available) are mixed uniformly, and then added to the spinning machine to melt and spin out the fiber of the semicircular cross-section of 3mm in diameter, this fiber The surface is smooth and flat.

[0062] 2) Prepare composite woven cloth:

[0063] On the weaving machine, the two kinds of polymer fibers made in step 1) such as figure 1 Weaving as shown, the wefts are alternate...

Embodiment 3

[0066] 1) Preparation of hydrophilic / hydrophobic polymer fibers:

[0067] 90 parts by weight of polymethyl methacrylate (commercially available) and 10 parts by weight of titanium dioxide particles (commercially available) with an average particle diameter of 5 μm are mixed evenly, and then added to a common spinning machine to melt and spin a semicircle with a diameter of 1.5 mm A fiber with a cross-section, the surface of which forms many fine protrusions of titanium dioxide particles.

[0068] 90 parts by weight of polyurethane resin (commercially available) and 10 parts by weight of an average particle diameter of 5nm silicon dioxide particles (commercially available) are mixed uniformly, and then added to the spinning machine to melt and spin out a fiber with a semicircular cross-section of 2.5mm in diameter , the surface of this fiber is smooth and flat.

[0069] 2) Prepare composite woven cloth:

[0070] On the weaving machine, the two kinds of polymer fibers made in ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a bionic water collection composite braided fabric, which is braided of hydrophilic and hydrophobic polymeric fiber; the parallet is formed by alternate hydrophilic and hydrophobic polymeric fiber with beam proportion at 2:1; the longitude is hydrophobic polymeric fiber, whose cross-section is semi-circular, smooth flat surface fiber; the hydrophilic polymeric fiber is semi-circular fiber with multiple fine projections on the surface; the hydrophilic and hydrophobic polymeric fiber is selected from one or more of ultraviolet stabilizer, ultraviolet absorbent, ozone stabilizer, antioxidant. The braided fabric can collect fog drip or disperses dense-fog.

Description

technical field [0001] The invention relates to a bionic water-collecting composite woven fabric, its preparation method and application. Background technique [0002] Dense fog is a kind of meteorological disaster. It not only brings inconvenience to people's travel, but sometimes even causes loss of life and property. Therefore, researches on low-cost artificial fog removal have been carried out abroad. On the other hand, with the global warming and the rapid increase of population, the problem of water shortage has become more and more prominent. For example, in our country, due to the diversity of geography and climate, many areas of our country are in a state of water shortage for a long time, which greatly restricts the local economic development, especially the development of the western region. Recently, a new technical system - "foggy water engineering" is quietly emerging in some countries and regions of the world. The method of "catching fog and water" can reduc...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D03D15/00D01F1/10E03B3/28D03D15/283D03D15/37D03D15/50
Inventor 黄忠兵江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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