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High-transmittance dustproof screen window material and preparation method of novel screen window

A screen and dust-proof technology, applied in insect control, rayon manufacturing, filament/thread forming, etc., can solve the problem that the PM2.5 interception efficiency is only 0-5%, the PM2.5 interception efficiency is less than 40%, and the nanofiber The low strength of the screen window can achieve the effect of good decorative effect, excellent wind resistance and long service life.

Active Publication Date: 2017-09-19
上海科涤新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The exchange of indoor and outdoor air is realized through windows. For some indoor air purification equipment, the problem of air purification cannot be solved from the source, and it is difficult to meet the needs of most users.
[0003] At present, the more popular screens on the market in the prior art include ordinary nylon, glass fiber, plastic and metal woven gauze, etc. The commonly used gauze mesh size is about 20*20 mesh, and a single mesh is 1.27mm*1.27 mm, mainly used to block large particles, but the interception efficiency of PM2.5 is only 0-5%
In recent years, various anti-PM2.5 screens launched on the market, including ultrafiltration membrane screens, nanofiber screens, etc., all have airtightness, poor light transmission, or PM2.5 interception efficiency lower than 40% to varying degrees. and other problems, and the price is 350-600 yuan / square meter, and nanofiber screens also have disadvantages such as low strength and short service life.

Method used

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  • High-transmittance dustproof screen window material and preparation method of novel screen window
  • High-transmittance dustproof screen window material and preparation method of novel screen window
  • High-transmittance dustproof screen window material and preparation method of novel screen window

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Dissolve a certain amount of polyacrylonitrile in N,N-dimethylformamide, stir for 5-8 hours until completely dissolved, and obtain polyacrylonitrile / N,N-dimethylformamide spinning solution. Add 0.5% tourmaline particles to the prepared homogeneous spinning solution, and stir in a water bath at 40°C for 3 hours. The spinning parameters are: voltage 55-70KV, receiving distance 10-20cm, drum speed 60r / min, ambient temperature 25°C, ambient relative humidity 45%.

[0027] Among them, the base cloth is made of glass fiber gauze, and the cover cloth is made of hard PET perforated material. The obtained base cloth / nanofiber film / cover cloth is heat-treated, and finally the gauze is cut and embedded in the frame to make a screen window. Test the nanofiber diameter, nano film thickness, filtration efficiency, filtration resistance, moisture permeability, air permeability and transparency of the screen window. The test data are shown in Table 1.

[0028] Table 1

[0029]

Embodiment 2

[0031] Dissolve a certain amount of polyacrylonitrile in N,N-dimethylformamide, stir for 5-8 hours until completely dissolved, and obtain polyacrylonitrile / N,N-dimethylformamide spinning solution. Add 1.5% tourmaline particles to the prepared homogeneous spinning solution, and stir in a water bath at 40°C for 8 hours. The spinning parameters are: voltage 70KV, receiving distance 10cm, drum rotation speed 50r / min, ambient temperature 27°C, ambient relative humidity 45%.

[0032] Among them, the base fabric is made of ordinary nylon gauze, and the cover fabric is made of hard PA perforated material. The obtained base fabric / nanofiber film / cover fabric is heat-treated, and finally the gauze is cut and embedded in the frame to make a screen window. Test the nanofiber diameter, nano film thickness, filtration efficiency, filtration resistance, moisture permeability, air permeability and transparency of the screen window. The test data are shown in Table 2.

[0033] Table 2

[003...

Embodiment 3

[0036] Dissolve a certain amount of polyvinylidene fluoride in N,N-dimethylformamide, stir for 5-8 hours until completely dissolved, and obtain polyacrylonitrile / N,N-dimethylformamide spinning solution. Add 1% tourmaline particles to the prepared homogeneous spinning solution, and stir in a water bath at 40° C. for 6 hours. Electrospinning parameters are: voltage 65KV, receiving distance 12cm, drum rotation speed 40r / min, ambient temperature 25°C, and ambient relative humidity 40%.

[0037] Among them, the base fabric is made of transparent hard perforated PU material, and the cover fabric is made of ordinary nylon gauze. The obtained base fabric / nanofiber film / cover fabric is heat-treated, and finally the gauze is cut and embedded in the frame to make a screen window. The nanofiber diameter, nanofilm thickness, filtration efficiency, filtration resistance, moisture permeability, air permeability and transparency of the screen window were tested, and the test data are shown in...

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Abstract

The invention discloses a high-transmittance dustproof screen window material and a preparation method of a novel screen window. The high-transmittance dustproof screen window material is composed of a screen, a screen window base material, a nanofiber membrane composed of nanofiber filaments, a fiber membrane carrier and a photochromic material. The novel screen window comprises a framework and a gauze element embedded into the framework, the gauze element adopts a hard punched or porous material as a base material, and the nanofiber membrane is spun on the surface of the base material. The screen window has the advantages of high strength and long service life at the same time and is a polishable dustproof screen window material with uniformly distributed nanofibers, good decorative effect, high transparency and excellent filtration performance, the filtration efficiency of the screen window is 85-99%, the filtration resistance is 15-80Pa, the transparency is 80-95%, the screen window is detachable and easy to clean, can be rolled up and has a good market prospect, and the screen window can effectively prevent fine particulate matters such as PM2.5 and is low in resistance, good in air mobility and excellent in wind resistance.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment and relates to air purification products, in particular to a high-transmittance and dust-proof screen window material and a preparation method for a novel screen window. Background technique [0002] With the development of industrial technology, air pollution has become more and more serious, and the air quality of people's lives has also seriously declined, thus people's lives have also been seriously affected, especially the appearance of haze weather. The continuous increase of suspended particulate matter in the air is the chief culprit of the haze weather. On the basis that the air quality cannot be improved rapidly, it is especially necessary to improve the indoor air quality. The exchange of indoor and outdoor air is realized through windows. For some indoor air purification equipment, the problem of air purification cannot be solved from the source, and it is d...

Claims

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Application Information

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IPC IPC(8): D04H1/728D04H1/43D04H1/4334D04H1/4358D01D5/00D01F1/10B32B7/12E06B9/52
CPCB32B7/12D01D5/0084D01F1/10D04H1/43D04H1/4334D04H1/4358D04H1/728E06B9/52
Inventor 杨春宇娄莉华胡宇鹏赵晓
Owner 上海科涤新材料科技有限公司
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