Anti-haze window gauze and preparation method thereof

A manufacturing method and technology for window screens, which are applied in separation methods, chemical instruments and methods, and insect control, can solve problems such as hindering air exchange, failing to prevent haze, and detrimental to physical and mental health. The effect of enhancing mechanical properties

Inactive Publication Date: 2017-05-10
スンナテクノロジーズシャンハイカンパニーリミテッド
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ordinary window screens cannot achieve the effect of preventing smog. Once there is smog, people will have to choose to close the doors and windows, which hinders the exchange of indoor and outdoor air, which is not conducive to people's physical and mental health.

Method used

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  • Anti-haze window gauze and preparation method thereof
  • Anti-haze window gauze and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The receiving layer is made of non-woven fabric, using 15g PET warp-knitted organza. The receiving surface on the warp-knitted organza is pre-treated with glue spraying. The glue used is water-based neoprene spray glue, and the weight of the glue layer is 0.1g.

[0047] Dissolve 150g of polyamide 6 (PA6) in 850g of 98% formic acid solution to make a 15% PA6 solution and spin the solution into a filter membrane by electrospinning. The temperature of the spinning solution is 30°C and the ambient temperature is 30°C , the relative humidity is 30wt%, the spinning voltage is 50000V, the distance from the spinneret to the receiving layer is 20cm, and the weight of the polymer nanofiber is 0.1g / m 2 . The ejected polymer nanofibers are attached to the adhesive layer of the receiving layer, so that the polymer nanofibers are not easy to fall off, tightly combined with the substrate, and have high mechanical properties. The morphology of the finished polymer nanofiber layer is a...

Embodiment 2

[0050] The receiving layer is a stainless steel wire mesh with a mesh spacing of 0.1 mm. A layer of ethylene-vinyl acetate (EVA) hot melt adhesive is sprinkled on the receiving surface of the stainless steel wire mesh in advance, and the weight of the adhesive layer is 0.5 g.

[0051] Dissolve 100g of thermoplastic polyurethane (TPU) and 900g of N,N-dimethylformamide to make a 10% PVDF solution and spin the solution into a filter membrane by electrospinning. The temperature of the spinning solution is 40°C and the ambient temperature The temperature is 40°C, the relative humidity is 30wt%, the spinning voltage is 50000V, the distance from the spinneret to the receiving layer is 30cm, and the nanofiber weight is 0.05g / m 2 . The polymer nanofibers are attached to the EVA hot melt adhesive of the receiving layer, and then processed at a high temperature of 100°C, so that the polymer nanofibers will not fall off, and are tightly combined with the substrate, with high mechanical pr...

Embodiment 3

[0054] Mix cellulose acetate butyrate (CAB) and low-density polyethylene (PE) at a mass ratio of 1:9, put them in a vacuum drying oven at 100°C for 24 hours, and then melt-extrude them with a twin-screw blending system . The extruded samples were soaked in acetone solvent at room temperature for 24 h, and ultrasonically treated for 1 h to remove CAB to obtain PE nanofibers.

[0055] The substrate non-woven fabric is 10g of PP melt-blown non-woven fabric, and the receiving surface on the non-woven fabric is pre-treated with water-based polyurethane spray glue, and the weight of the glue layer is 0.3g.

[0056] The PE nanofibers are evenly covered on the adhesive layer of the non-woven substrate, so that the polymer nanofibers will not fall off, and are tightly combined with the substrate, with high mechanical properties.

[0057] The protective layer is made of 15g PET warp-knitted organza, and the polymer nanofiber protective layer is composited on the nanofiber layer, and sp...

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Abstract

The invention discloses an anti-haze window gauze and a preparation method thereof. The widow gauze comprises in sequence a receiving layer, a gel layer, a polymer nanofiber layer and a protection layer which are four layers. The receiving layer is made by metal net, non-woven fabric or woven fabric. The receiving layer is glued to the polymer nanofiber layer through the gel layer. The thickness of the polymer nanofiber layer is 0.1-100 millimeter. The mesh diameter is 50-2000 nanometers. The protection layer is non-woven fabric and woven fabric. The anti-haze window gauzepossesses good anti-haze effect. The cleaning rate of PM2.5 is as high as more than 99%. The air permeation and light transmission are excellent. The window gauze is anti-wearing and anti-scraping, has an enduring PM2.5 filtration effect. The invention further provides a preparation method of the anti-haze window gauze. The method can use the nanofiber prepared by using various methods in the prior art as the material for the production of the anti-haze gauze.

Description

technical field [0001] The invention relates to the field of anti-haze products for daily use, in particular to an anti-haze window screen with high transparency, high air permeability, not easy to fall off, and good mechanical properties. Background technique [0002] Air pollution from large-scale industrial production is particularly serious, resulting in frequent smog in China. Among them, PM2.5 (particulate matter with an aerodynamic equivalent diameter less than or equal to 2.5 microns) is considered to be the "culprit" of haze weather, and it is also the most concerned by people. PM2.5 can pass through the upper and lower respiratory tracts and bronchi, reach the lungs for deposition, and even enter the blood of the human body through the alveoli. In addition, the particulate matter is enriched with heavy metals, acid oxides, organic pollutants, etc., and bacteria, viruses, etc. are also easily trapped in fine particulate matter. Therefore, PM2.5 poses a major threat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B9/52B01D39/16B32B15/02B32B15/14B32B15/18B32B23/02B32B23/10B32B27/12B32B27/34B32B27/36B32B27/40B32B7/12B32B7/08B32B5/06B32B37/12
CPCE06B9/52B01D39/16B32B5/02B32B5/022B32B5/26B32B7/12B32B33/00B32B37/12B32B2250/20B32B2262/0261B32B2262/0276B32B2262/103B32B2307/724E06B2009/524
Inventor 李虎敏潘信王春蕾戴伟民
Owner スンナテクノロジーズシャンハイカンパニーリミテッド
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