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Manufacturing method of PTFE (Polytetrafluoroethylene) PM2.5-proof window screen and window screen

A production method, PTFE technology, used in special equipment for doors/windows, insect-proof, windows/doors, etc., can solve the problem of PM2. The general anti-PM2.5 performance and other problems can ensure the windproof performance and service life, light thickness and high strength.

Pending Publication Date: 2022-04-15
ZHEJIANG SHUREN 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 address the deficiencies in the prior art, and provide a PTFE anti-PM2.5 window screen and its manufacturing method, which solves the windproof, waterproof and self-purifying properties of the anti-PM2.5 window screen in the prior art. and poor durability, general air permeability and anti-PM2.5 performance, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: a kind of preparation method of PTFE anti-PM2.5 window screen, comprising the steps:

[0022] (1) Selection of mesh support layer: choose nylon mesh as mesh support layer;

[0023] (2) Apply adhesive: place the mesh support layer flat on the mesh conveyor belt, then spray a layer of adhesive evenly, and heat to shape after drying at low temperature;

[0024] (3) Preparation of PTFE porous membrane: the biaxial stretching method is used to prepare the PTFE porous membrane, and the technological process is as follows:

[0025] PTFE fine powder→add lubricant→extrude into strip→longitudinal stretching→transverse stretching→high temperature setting→finished film;

[0026] (4) Lamination: Lamination is used for lamination, and the mesh support layer material after spraying the adhesive is hot-pressed and covered with a PTFE porous membrane by a laminating machine.

[0027] The aperture of nylon mesh in Example 1 is 1.5mm;

[0028] The adhesive is a hot melt a...

Embodiment 2

[0034] Embodiment 2: a kind of manufacture method of PTFE anti-PM2.5 window screen, comprises the steps:

[0035] (1) Selection of mesh support layer: choose nylon mesh as mesh support layer;

[0036] (2) Apply adhesive: place the mesh support layer flat on the mesh conveyor belt, then spray a layer of adhesive evenly, and heat to shape after drying at low temperature;

[0037] (3) Preparation of PTFE porous membrane: the biaxial stretching method is used to prepare the PTFE porous membrane, and the technological process is as follows:

[0038] PTFE fine powder→add lubricant→extrude into strip→longitudinal stretching→transverse stretching→high temperature setting→finished film;

[0039] (4) Lamination: Lamination is used for lamination, and the mesh support layer material after spraying the adhesive is hot-pressed and covered with a PTFE porous membrane by a laminating machine.

[0040] The aperture of nylon net is 1.0mm in embodiment 2;

[0041] The adhesive is a hot melt ...

Embodiment 3

[0047] Embodiment 3: a kind of manufacture method of PTFE anti-PM2.5 window screen, comprises the steps:

[0048] (1) Selection of mesh support layer: choose nylon mesh as mesh support layer;

[0049] (2) Apply adhesive: place the mesh support layer flat on the mesh conveyor belt, then spray a layer of adhesive evenly, and heat to shape after drying at low temperature;

[0050] (3) Preparation of PTFE porous membrane: the biaxial stretching method is used to prepare the PTFE porous membrane, and the technological process is as follows:

[0051] PTFE fine powder→add lubricant→extrude into strip→longitudinal stretching→transverse stretching→high temperature setting→finished film;

[0052] (4) Lamination: Lamination is used for lamination, and the window screen support layer material after spraying the adhesive is hot-pressed and covered with a PTFE porous membrane by a laminating machine.

[0053] The aperture of nylon net is 0.5mm in embodiment 3;

[0054] The adhesive is a ho...

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Abstract

The invention relates to a manufacturing method of a PTFE (Polytetrafluoroethylene) PM2.5-proof window screen. The manufacturing method comprises the following steps: (1) selecting a net-shaped supporting layer; (2) coating an adhesive; (3) preparing a PTFE porous membrane; and (4) compounding. According to the steps, a layer of PTFE porous membrane can be compounded on the net-shaped supporting layer, and the PTFE porous membrane is a microporous membrane prepared by adopting a two-way stretching method, so that the PTFE porous membrane is high in strength, strong in air permeability, smooth in surface, antistatic, strong in hydrophobicity, light and thin in thickness and high in porosity, and the microporous structure is a three-dimensional net-shaped crossed structure; therefore, the product prepared by the invention not only can filter PM2.5, but also is breathable and waterproof, and has a self-purification function; and the reticular supporting layer improves the rigidity and strength of the prepared product, effectively supports the PTFE porous membrane, and ensures the windproof performance and the service life of the product.

Description

technical field [0001] The invention relates to the field of window screen fabrication, in particular to a PTFE PM2.5-proof window screen and a fabrication method thereof. Background technique [0002] The main component of haze that is harmful to the human body is PM2.5. The continuous haze weather has made people worry about PM2.5. Therefore, in smog weather, people will encounter the problem of whether to open the window. The smog air outside the window will enter the house, and if the window is not opened, the indoor air will not be circulated. In order to solve the contradiction between opening windows for ventilation and blocking smog, there are currently three popular indoor air purification methods on the market: air purifiers, fresh air systems and anti-smog screens. For the fresh air system, Pei Zhichao et al. analyzed the PM2.5 control effect of the residential fresh air system. The results show that when the outdoor PM2.5 concentration is high, the fresh air sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B9/52E06B7/28
Inventor 蒋新龙蒋子燕张德勇王智敏
Owner ZHEJIANG SHUREN UNIV
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