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Filtering material for improving protection performance of daily mask

A filter material and protective performance technology, which is applied in the field of daily mask processing and preparation, can solve the problems of general filtration effect of inhalable particulate matter, increase of carbon dioxide concentration, and decrease of oxygen concentration, so as to achieve excellent performance, meet demand, and improve protection performance effect

Inactive Publication Date: 2020-12-22
安徽灵春医用耗材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can have a good filtering function for large particle size particles, but the filtering effect for inhalable particles is very general, and the protective effect is greatly reduced in the case of high particle concentration, and when worn for a long time, it will cause oxygen concentration in the cavity. decrease, the concentration of carbon dioxide rises, causing discomfort to the human body, and there is still a great potential safety hazard for people with weak lung function

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A filter material for improving the protective performance of daily face masks, comprising the following steps:

[0016] (1) Weigh 19 grams of kaolinite powder and 33 grams of calcium-based bentonite, mix them, crush them until they pass through a 40-mesh sieve, place them in a magnesium chloride solution with a molar concentration of 1.2 mol / liter, the ratio of solid to liquid is 1:4.3, and heat to 70 °C, swell for 14 hours, filter, wash twice with deionized water, and dry in an oven at 110 °C for 6 hours for later use;

[0017] (2) Weigh 7.5 grams of tourmaline powder with a particle size between 1-10 microns, put it in a beaker, add 1.2 grams of sodium chloride and 0.30 grams of potassium dihydrogen phosphate, and add 230 milliliters of deionized Water, after stirring continuously for 30 minutes, adjust the pH value of the system between 6.2-6.5 with a citric acid aqueous solution with a pH value between 3.0-3.4, filter it after ultrasonic treatment for 10 minutes, f...

Embodiment 2

[0025] A filter material for improving the protective performance of daily face masks, comprising the following steps:

[0026] (1) Weigh 22 grams of kaolinite powder and 35 grams of calcium-based bentonite, mix them, crush them until they pass through a 50-mesh sieve, place them in a magnesium chloride solution with a molar concentration of 1.4 mol / liter, the ratio of solid to liquid is 1:4.4, and heat to 72 °C, swell for 16 hours, filter, wash twice with deionized water, and dry in an oven at 115 °C for 7.5 hours for later use;

[0027] (2) Weigh 8.0 grams of tourmaline powder with a particle size between 1-10 microns, put it in a beaker, add 1.3 grams of sodium chloride and 0.33 grams of potassium dihydrogen phosphate, and add 235 milliliters of deionized Water, after stirring continuously for 35 minutes, adjust the pH value of the system between 6.2-6.5 with a citric acid aqueous solution with a pH value between 3.0-3.4, filter it after ultrasonic treatment for 11 minutes,...

Embodiment 3

[0035] A filter material for improving the protective performance of daily masks, comprising the following steps:

[0036] (1) Weigh 25 grams of kaolinite powder and 37 grams of calcium-based bentonite, mix them, crush them to pass through a 60-mesh sieve, place them in a magnesium chloride solution with a molar concentration of 1.6 mol / liter, and heat to 75 °C, swell for 18 hours, filter, wash with deionized water three times, and dry in an oven at 120 °C for 9 hours for later use;

[0037] (2) Weigh 8.5 grams of tourmaline powder with a particle size between 1-10 microns, put it in a beaker, add 1.4 grams of sodium chloride and 0.35 grams of potassium dihydrogen phosphate, and add 240 milliliters of deionized Water, after stirring continuously for 40 minutes, adjust the pH value of the system between 6.2-6.5 with a citric acid aqueous solution with a pH value between 3.0-3.4, filter it after ultrasonic treatment for 12 minutes, filter the solid and put it into a mass concent...

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Abstract

The invention relates to a filtering material for improving the protection performance of a daily mask. According to the invention, kaolinite powder, calcium bentonite and tourmaline powder are used as raw materials, and a purifying material with dual functions of super-strong air permeability and filterability is developed through a nano-processing modification technology, so that a mask processed from the purifying material has an extremely good application effect, wherein when the respiratory flow is 30-35 liters per minute, the filtering resistance is 11-13 Pa and reaches a human body comfortable inspiration value, when the respiratory flow is 30 liters per minute, the filtering efficiency reaches 98% or above, when the respiratory flow rises, the filtering resistance is lower than thelimit value specified in GB2626-2006, and when the respiratory flow is 90 liters per minute, the filtering efficiency still reaches 92% or above. so that the performance is excellent during high-intensity breathing; and compared with an existing filter material, the filtering material of the invention is optimal in comprehensive performance and can meet the requirements of a human body for breathing comfort and clean air at the same time.

Description

technical field [0001] The invention relates to the technical field of processing and preparation of a daily mask, in particular to a filter material for improving the protective performance of a daily mask. Background technique [0002] At present, indoor and outdoor air pollution in our country is relatively serious, which constitutes a threat to people's physical and mental health to a certain extent. There have also been many persistent air pollution incidents at home and abroad, which have aroused widespread concern from the entire society. Masks can block pollutants such as dust, flying catkins, and droplets, and protect human health. They are important protective items in daily life. Of course, after experiencing the epidemic, people's awareness of protection has been greatly enhanced, and they have also realized the importance of masks. Naturally, masks have entered the daily life of the public as an important item for daily protection, and the protection of masks is...

Claims

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Application Information

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IPC IPC(8): B01D39/06A41D13/11A41D31/02A41D31/04
CPCA41D13/11A41D31/02A41D2500/30A41D2500/50A41D31/04B01D39/06B01D2239/10
Inventor 汤现春刘会珍
Owner 安徽灵春医用耗材有限公司
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