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A kind of anti-ultraviolet nanofiber composite screen window and preparation method thereof

A nanofiber, UV-resistant technology, applied in the direction of chemical characteristics of fibers, chemical instruments and methods, cellulose plastic material layered products, etc., can solve the problem of easy blockage of the liquid end

Active Publication Date: 2020-10-30
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to effectively solve the problem that the liquid outlet of the existing needle / nozzle for electrospinning is easily blocked, has a good protective effect on ultraviolet rays, and has excellent filtering performance

Method used

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  • A kind of anti-ultraviolet nanofiber composite screen window and preparation method thereof

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Effect test

Embodiment 1

[0029] An anti-ultraviolet nanofiber composite screen window and a preparation method thereof, the preparation method comprising the following steps:

[0030] 1) Spinning liquid preparation: uniformly disperse salicylate organic ultraviolet absorber (addition amount 0.5%) in formic acid to form a dispersion liquid, and use ultrasonic disperser (ultrasonic frequency 40kHz, ultrasonic temperature 80 ℃) to ultrasonically stir After 20 minutes, nylon 6 (with a weight average molecular weight of 50,000) was added to the dispersion, and after sealing, it was continuously stirred for 15 hours with a magnetic stirring device, and finally a stable and uniform polymer spinning solution with a mass concentration of 10% was prepared;

[0031] 2) Electrospinning: the prepared polymer spinning solution is sucked into the spinning module through the liquid supply device, and the combined needle for electrospinning is used to realize the spinning polymer solution to be stretched at the tip of ...

Embodiment 2

[0037] An anti-ultraviolet nanofiber composite screen window and a preparation method thereof, the preparation method comprising the following steps:

[0038]1) Spinning solution preparation: uniformly disperse the benzophenone organic ultraviolet absorber (addition amount 1%) in N,N-dimethylacetamide to form a dispersion liquid, and use an ultrasonic disperser (ultrasonic frequency 40kHz, ultrasonic After ultrasonic stirring for 30 minutes at a temperature of 70°C, polyurethane (weight-average molecular weight: 80,000) was added to the dispersion liquid, and after sealing, it was continuously stirred for 8 hours with a magnetic stirring device, and finally a stable and uniform polymer with a mass concentration of 15% was prepared. spinning solution;

[0039] 2) Electrospinning: the prepared polymer spinning solution is sucked into the spinning module through the liquid supply device, and the combined needle for electrospinning is used to realize the spinning polymer solution ...

Embodiment 3

[0045] An anti-ultraviolet nanofiber composite screen window and a preparation method thereof, the preparation method comprising the following steps:

[0046] 1) Preparation of spinning solution: uniformly disperse benzotriazole organic ultraviolet absorber (addition amount 1.5%) in N,N-dimethylformamide to form a dispersion liquid, and use an ultrasonic disperser (ultrasonic frequency 35kHz , ultrasonic temperature 50°C) after ultrasonic stirring for 40 minutes, polyvinylidene fluoride (weight-average molecular weight: 320,000) was added to the dispersion, and after sealing, it was continuously stirred for 9 hours with a magnetic stirring device, and finally a stable and uniform mass concentration was prepared. 18% polymer spinning solution;

[0047] 2) Electrospinning: the prepared polymer spinning solution is sucked into the spinning module through the liquid supply device, and the combined needle for electrospinning is used to realize the spinning polymer solution to be st...

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Abstract

The invention discloses an ultraviolet-proof nano-fiber composite screen window and a production method thereof. The production method includes: using an electrostatic spinning combined needle to perform stretching and silk yielding of a spinning solution doping a ultraviolet screening agent on a sharp end of a solid metallic wire, and depositing the silk on a screen window basal material; using recovered solvent vapor to perform slight soluble treatment on a surface of a nano-fiber layer at a certain releasing speed; and fusing the covering protection layer, the nano-fiber layer and the screen window basal material through an ultrasonic composition method, and acquiring the ultraviolet-proof nano-fiber composite screen window. The problem that the conventional electrostatic spinning needles / sprayer outlet ends are blocked can be solved, the ultraviolet-proof nano-fiber composite screen window can prevent ultraviolet light and has excellent filtering performance; the ultraviolet transmittance of the composite screen window is less than or equal to 2.5%, the ultraviolet-proof coefficient level is greater than 40; for particles whit the size of 0.3-10 [mu]m, the filtering efficiencyof the composite screen window is greater than or equal to 90%; the resistance pressure drop is 10-30 Pa, and the light transmittance is greater than or equal to 68%; and the ultraviolet-proof nano-fiber composite screen window has wide development prospect in an indoor air filter market.

Description

technical field [0001] The invention relates to an anti-ultraviolet nanofiber composite screen window and a preparation method thereof, belonging to the field of functional materials. Background technique [0002] Air pollution is becoming more and more serious, and smog weather has almost become the norm. PM2.5, as one of the common pollutants in the air, has already caused a huge threat to human health, and the indoor pollution it brings has attracted more and more attention. According to the current design of conventional buildings, windows are the main structure for indoor natural ventilation. When windows are opened for ventilation, screen windows become the only barrier. In addition to fine particles such as PM2.5 that can enter the room, ultraviolet rays in sunlight can also penetrate Through windows and screen windows, long-term exposure will cause great harm to human skin and eyes. [0003] Among the existing patents for preparing fibers with anti-ultraviolet funct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06B9/52D01F6/90D01F6/94D01F6/48D01F6/92D01F6/52D01F6/50D01F6/56D01F6/54D01F1/10D01F11/06D01F11/08B32B27/02B32B27/12B32B27/34B32B27/32B32B9/00B32B9/04B32B27/36B32B23/02B32B23/10B32B15/02B32B15/14B32B15/18
Inventor 丁彬廖亚龙赵兴雷李玉瑶许鑫印霞俞建勇
Owner DONGHUA UNIV
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