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Anti-haze window screen based on electrospinning technology and preparation method thereof

An electrospinning technology and anti-smog technology, which is applied in the field of anti-smog window screens and its preparation, can solve the problems of inability to meet the needs of industrialized production, complicated filter material combination process, and hindering the protective effect, so as to achieve enhanced strength and enhanced combination effect, the effect of prolonging the service life

Active Publication Date: 2018-05-25
聚纳达(青岛)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The screen window is a common ventilation door and window accessory. The mesh window screen of the traditional screen window can ensure ventilation and prevent mosquitoes from entering the room, but it cannot prevent pollutants such as smog and haze.
From traditional screens to functional anti-fog screens, it is possible to adopt the method of lining PM2.5 filter materials such as activated carbon to absorb dust, but the existing filter materials are too thick to meet the needs of light transmission and air permeability of window screens, and This method of combining the filter material with the traditional window screen is more complicated and costly, and cannot meet the needs of industrial production.

Method used

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  • Anti-haze window screen based on electrospinning technology and preparation method thereof
  • Anti-haze window screen based on electrospinning technology and preparation method thereof

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preparation example Construction

[0030] The preparation method of the nano graphene used in the embodiment of the present invention comprises the following steps:

[0031] (a) Preparation of graphene oxide: in an ice-water bath at 0°C, sequentially add concentrated sulfuric acid and potassium permanganate with a mass fraction of 98% to expandable graphite, stir evenly at a temperature lower than 20°C, and place in a water bath Raise the temperature to 35°C and keep it for 1.5h; add ultrapure water to the obtained solution to dilute until the solution is brown, heat it in a water bath to 95°C, and keep it for 30-40min; add a 30% hydrogen peroxide solution to the solution to The solution turned khaki and cooled to room temperature; the obtained solution was suction filtered to obtain a yellow solid, which was acid-washed twice and then washed with deionized water until the washing liquid was neutral, and the solid was ultrasonically dispersed in ultrapure water Obtain a brown solution, freeze-dry after centrifu...

Embodiment 1

[0034] A preparation method of an anti-smog window screen based on electrospinning technology, comprising the following steps:

[0035] (1) Configure the precursor spinning solution: add nano-graphene to the mixed solvent of dimethylformamide (DMF) and acetone, and in the mixed solvent, N,N-dimethylformamide (DMF) and acetone The volume ratio of the solution is 1:1, and it is treated with an ultrasonic breaker for 2 hours, so that the nano-graphene is uniformly dispersed in the solvent to make a 0.05wt% nano-graphene dispersion, and it is added to the nano-graphene dispersion under heating and stirring in a water bath at 60 ° C. PVDF, stirred for 8 hours until the mixed solution was evenly clarified; then added PEO to the solution and continued to stir for 12 hours to obtain a homogeneous and transparent precursor spinning solution with suitable viscosity. The content of PVDF in the resulting precursor spinning solution was 15wt%, and the content of PEO was 0.8wt%;

[0036] (...

Embodiment 2

[0042] A preparation method of an anti-smog window screen based on electrospinning technology, comprising the following steps:

[0043] (1) Configure the precursor spinning solution: add nano-graphene to the mixed solvent of dimethylformamide (DMF) and acetone, and in the mixed solvent, N,N-dimethylformamide (DMF) and acetone The volume ratio of the solution is 1:1, and it is processed with an ultrasonic breaker for 3 hours, so that the nano-graphene is uniformly dispersed in the solvent to make a 0.25wt% nano-graphene dispersion, and it is added to the nano-graphene dispersion under heating and stirring in a water bath at 60 ° C. PVDF, stirred for 8 hours until the mixed solution was evenly clarified; then added PEO to the solution and continued to stir for 12 hours to obtain a homogeneous and transparent precursor spinning solution with suitable viscosity. The content of PVDF in the resulting precursor spinning solution was 19wt%, and the content of PEO was 0.6wt%;

[0044]...

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Abstract

The invention discloses an anti-haze window screen based on an electrospinning technology and a preparation method thereof. The window screen is provided with a three-layer composite structure, a baselayer is a metal screen cloth, and a cyan ethyl acrylate viscous layer is compounded on the surface of the metal screen cloth in an electrostatic spray method. An intermediate layer is a nanofiber functional film directly electrospun on the surface of the metal screen cloth by electrospinning, and the nanofiber functional film is a nano-graphene / PVDF / PEO composite nanofiber film, a protective layer is compounded on the upper surface of the nanofiber functional film through a hot pressing method, and the protective layer is a nylon net. The window screen can filter outdoor air, effectively block dust and other particulate matter, and can ensure indoor and outdoor air circulation and indoor lighting. The preparation method is simple, suitable for large-scale production, and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of building materials and environmental protection, and in particular relates to an anti-fog and haze window screen based on electrospinning technology and a preparation method thereof. Background technique [0002] In recent years, smog, dust or sandstorms have occurred frequently, and the impact of air pollution on health has gradually attracted people's attention. my country has become one of the countries with the most serious air pollution in the world. The concentration of PM2.5 in the urban air environment exceeds the standard. Many cities in China are plagued by smog, and the form of smog is severe. In addition, with the aggravation of air pollution, the atmosphere also contains harmful gas pollutants such as bacteria, viruses, organic pollutants, nitrogen oxides, and sulfur oxides. When outdoor smog pollution is serious, people often close doors and windows to prevent outdoor air from entering the room. Howe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B9/52B01D39/02B01D39/04B01D39/06B01D46/00B01D46/10D04H1/728D01D5/00
CPCB01D39/02B01D39/04B01D39/06B01D46/0036B01D46/10B01D2239/0407B01D2239/10D01D5/0015D01D5/0084D04H1/728E06B9/52
Inventor 拉马克瑞斯纳·西拉姆龙云泽于淼
Owner 聚纳达(青岛)科技有限公司
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