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Ultraviolet photocatalytic electrospinning anti-fog and haze window screen and its preparation method

An electrospinning and anti-fog technology, which is applied in the field of ultraviolet photocatalytic electrospinning anti-fog and haze window screens and its preparation, can solve problems such as hindering the protective effect, and achieve the effects of enhancing strength, eliminating air pollution, and thin thickness

Active Publication Date: 2020-09-22
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

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 ultraviolet rays.

Method used

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  • Ultraviolet photocatalytic electrospinning anti-fog and haze window screen and its preparation method
  • Ultraviolet photocatalytic electrospinning anti-fog and haze window screen and its preparation method

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preparation example Construction

[0033] TiO with a molecular sieve-like structure used in the embodiments of the present invention 2 The preparation method of powder comprises the following steps:

[0034] a) Template compounding agent solution: take 300mL industrial TiOSO 4 The solution was heated to 100°C and stirred for 15 minutes to obtain hot titanium solution; take quantitative cetyltrimethylammonium bromide (CTAB), polyethylene oxide-polypropylene oxide-polyethylene oxide tertiary (P- 123) and sodium silicate (Na 2 SiO 3 9H 2 O) be dissolved in 600mL water, and raw material molar ratio is: X (Ti): X (CTAB): X (P-123): X (Si)=1: 0.2: 0.02: 0.02; Measure triethylamine ( TEA) 15mL, and n-pentanol 15mL were added thereto, stirred and mixed evenly, configured as a template compounding agent solution, and placed in a constant temperature oil bath at 70°C and stirred for 15 minutes;

[0035] b) Take 200ml of the composite template solution prepared in step a) and place it in a three-necked bottle in a co...

Embodiment 1

[0040] A method for preparing an ultraviolet photocatalyzed electrospinning anti-fog and haze window screen, comprising the following steps:

[0041] (1) Configure the precursor spinning solution: TiO with a molecular sieve-like structure 2 The powder was added to DMF and treated with an ultrasonic crusher for 2 hours to make TiO with a molecular sieve-like structure 2 Uniformly dispersed in solvent to make 0.5wt% TiO 2 Dispersion solution, stirring at room temperature to TiO 2 Add PMMA to the dispersion, stir for 8 hours until the mixed solution is uniform and clear; then add PEO to the solution and stir for 8 hours, then add ECA to the solution, and continue stirring for 12 hours to obtain a homogeneous and transparent precursor spinning solution with suitable viscosity. The content of PMMA in the silk liquid is 15wt%, the content of PEO is 0.8wt%, and the content of ECA is 2.0wt%;

[0042] (2) Pretreatment base layer: the base layer is a copper screen (metal screen) with...

Embodiment 2

[0048] A method for preparing an ultraviolet photocatalyzed electrospinning anti-fog and haze window screen, comprising the following steps:

[0049] (1) Configure the precursor spinning solution: TiO with a molecular sieve-like structure 2 The powder was added to DMF, and treated with an ultrasonic crusher for 3 hours to make TiO with a molecular sieve-like structure 2 Uniformly dispersed in solvent to make 1wt% TiO 2 Dispersion solution, stirring at room temperature to TiO 2 Add PMMA to the dispersion, stir for 8 hours until the mixed solution is uniform and clear; then add PEO to the solution and stir for 8 hours, then add ECA to the solution, and continue stirring for 12 hours to obtain a homogeneous and transparent precursor spinning solution with suitable viscosity. The content of PMMA in the silk liquid is 20wt%, the content of PEO is 0.6wt%, and the content of ECA is 1.5wt%;

[0050] (2) Pretreatment base layer: the base layer is a stainless steel screen (metal scre...

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Abstract

The invention discloses an ultraviolet light catalyzed electrospinning anti-haze window screen and a preparation method of the ultraviolet light catalyzed electrospinning anti-haze window screen. Thewindow screen has a three-layer composite structure, a base layer is a metal screen mesh, a middle layer is a nanofiber functional membrane formed by directly carrying out electrospinning on the uppersurface of the metal screen mesh by an electrospinning method, the nanofiber functional membrane is a TiO2 / PMMA / PEO / ECA composite nanofiber membrane, TiO2 containing in the nanofiber functional membrane is TiO2 powder with a molecular sieve-like structure, and a nylon net protective layer is compounded on the upper surface of the nanofiber functional membrane through a hot-pressing method. The window screen can filter outdoor air and effectively block particulate pollutants, further can play the role of ultraviolet protection, and the effects of performing sterilization and disinfection and decomposing harmful gases, and prevent pollutants of outdoor haze, ultraviolet light and the like from entering the interior to pollute indoor environments while ensuring indoor and outdoor air ventilation, and further is simple in preparation method, suitable for scale production and very good in application prospects.

Description

technical field [0001] The invention belongs to the field of building materials and environmental protection, and in particular relates to an ultraviolet photocatalyzed electrostatic spinning anti-fog and haze window screen 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. Not only that, since the 20th century, with the rapid development of industry, air pollution has become more and more serious. Chlorides such as freon have been decomposed by ultraviolet rays, and further reacted with the ozone layer, resulting in serious damage to the atmospheric ozone layer, and the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B15/02B32B15/04B32B3/12B32B27/02B32B27/34B32B3/24B32B37/10B32B37/06E06B9/52F24F3/16D04H1/4382D04H1/728
CPCB32B3/12B32B3/266B32B5/02B32B15/02B32B15/04B32B37/06B32B37/10B32B2262/0261B32B2307/71D04H1/4382D04H1/728E06B9/52F24F3/16F24F2221/20F24F8/10F24F8/108F24F8/167F24F8/22F24F8/24
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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