Replaceable film filter core for PM2.5 purifying mouth mask and preparation method of filter core

A film-coated and mask technology, applied in the field of replaceable film-coated filter elements for purifying PM2.5 masks and its preparation, can solve the problems of long conveying distance, few masks, small PM2.5 particle size, etc., and achieve long service life , good air permeability, resource saving effect

Active Publication Date: 2013-08-07
中材科技膜材料(山东)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the particle size of PM2.5 is small, and its surface is easy to contain a large amount of toxic and harmful substances, and it stays in the atmosphere for a long time, and the transportation distance is long, thus causing various health threats to the human body.
[0004] With the rapid growth of my country's economy, the high concentration of PM2.5 particles in the air in many regions has become an objective reality. I

Method used

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  • Replaceable film filter core for PM2.5 purifying mouth mask and preparation method of filter core
  • Replaceable film filter core for PM2.5 purifying mouth mask and preparation method of filter core

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 , 2 The replaceable film-coated filter element for purifying PM2.5 masks shown is composed of the first spunbonded non-woven fabric layer 1, the melt-blown non-woven fabric layer 2, the PTFE microporous membrane layer 3, and the activated carbon non-woven fabric layer from top to bottom. Layer 4 and the second spun-bonded non-woven fabric layer 5 are composited; the cross-section of the PM2.5 respirator with a replaceable film-coated filter element is rectangular, with a length of 105 cm and a width of 75 cm.

[0022] The grammage of above-mentioned first spunbond nonwoven fabric layer, melt blown nonwoven fabric layer, activated carbon nonwoven fabric layer and the second spunbond nonwoven fabric layer is 20g / m 2 ;The weight of PTFE microporous membrane is 1.0g / m 2 .

[0023] The above-mentioned PTFE microporous membrane has a pore size of 0.5 μm, a porosity of 80%, and an air permeability of 8 cm / s (127 Pa).

[0024] The above-mentioned manufactur...

Embodiment 2

[0027] Basically the same as Example 1, the difference is: the length of the PM2.5 respirator with replaceable film-covered filter element is 115cm, and the width is 85cm.

[0028] The grammage of the first spunbond nonwoven layer, melt blown nonwoven layer, activated carbon nonwoven layer and the second spunbond nonwoven layer is 30g / m 2 ;The weight of PTFE microporous membrane is 4.0g / m 2 .

[0029] The PTFE microporous membrane has a pore size of 1.0μm, a porosity of 90%, and an air permeability of 14cm / s (127Pa).

[0030] The temperature of the edge of the hot-melt seam is 160°C, and the hot-melt pressure is 0.8MPa.

[0031] The obtained replaceable film-coated filter element for purifying PM2.5 masks has a filtration efficiency of >99.97%, an air permeability of >10.0cm / s, and a filtration resistance of <150Pa. The filtration efficiency, air permeability, and filtration resistance are all tested according to GB2626-2006.

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Abstract

The invention discloses a replaceable film filter core for a PM2.5 purifying mouth mask and a preparation method of the filter corer. The replaceable film filter core for the PM2.5 purifying mouth mask comprises a first spunbonded nonwoven fabric layer, a melt-blown nonwoven fabric layer, a PTFE (Polytetrafluoroethylene) microporous film layer, an activated carbon nonwoven fabric layer and a second spunbonded nonwoven fabric layer which are combined from top to bottom successively. The film filter core has the beneficial effects that the small aperture and high porosity of a polytetrafluoroethylene microporous film is utilized, and the polytetrafluoroethylene microporous film is compounded with other layers, through multi-layer filtration and adsorptive action, the object of preventing PM2.5 particles from entering a human body is effectively achieved. The film filter core is a thin sheet piece, is extremely light, long in useful service life, good in PM2.5 particle preventing effect, good in air permeability, and designed to be replaceable in use, saves resources, has characteristics conforming to environmental requirements, and is worthy of being produced and popularized.

Description

technical field [0001] The invention relates to a replaceable membrane-covered filter element for purifying PM2.5 masks and a preparation method thereof. Background technique [0002] Since the beginning of this year, as many provinces and cities in my country have experienced persistent heavy smog and the country has paid more and more attention to environmental protection, the newly revised "Ambient Air Quality Standards" have also added PM2.5 monitoring indicators. These have made people pay more and more attention to "PM2.5". [0003] PM, the English full name is particular matter, which is particulate matter. PM2.5 refers to particulate matter with a diameter less than or equal to 2.5 μm in the atmosphere, also known as particulate matter that can enter the lungs. Its particle size is too small to be easily blocked by the respiratory tract. After being inhaled into the human body, it will directly enter the bronchi and alveoli, interfere with the gas exchange in the l...

Claims

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Application Information

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IPC IPC(8): B01D39/14B01D46/00B01D46/54B01D53/04B32B27/06B32B27/12B32B9/04A41D13/11A41D31/02
Inventor 黎鹏范凌云杨振东黄箭玲赵东波费传军董浩宇郭晓蓓周群宋尚军白耀宗
Owner 中材科技膜材料(山东)有限公司
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