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CN111389097B - Anti-virus air filter element and application thereof - Google Patents

Anti-virus air filter element and application thereof Download PDF

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Publication number
CN111389097B
CN111389097B CN202010228903.0A CN202010228903A CN111389097B CN 111389097 B CN111389097 B CN 111389097B CN 202010228903 A CN202010228903 A CN 202010228903A CN 111389097 B CN111389097 B CN 111389097B
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China
Prior art keywords
sponge
air filter
chlorine dioxide
virus
lining
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Application number
CN202010228903.0A
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Chinese (zh)
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CN111389097A (en
Inventor
王俊华
王波
黄云成
王天泽
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Taizhou Dashu Information Technology Co ltd
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Taizhou Dashu Information Technology Co ltd
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Priority to CN202010228903.0A priority Critical patent/CN111389097B/en
Publication of CN111389097A publication Critical patent/CN111389097A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
    • A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B01D46/12—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/10—Filtering material manufacturing

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filtering Materials (AREA)

Abstract

The invention discloses an anti-virus air filter element, which comprises a coat and a lining, wherein the lining is a recyclable sponge loaded with solid chlorine dioxide, and the anti-virus air filter element is prepared by the following steps: step one, adding adsorbent fine powder into 0.5-10wt% chlorine dioxide solution, and uniformly mixing; adding the adhesive and mixing uniformly; wherein the mass ratio of the chlorine dioxide solution to the adsorbent fine powder to the adhesive is 1: 0.1-1.0: 0.05-0.5; step two, soaking the sponge into the mixed liquid obtained in the step one for 30-60min, and taking out; then squeezing out excessive water in the sponge, and drying and activating for 1-6h at 70-90 ℃. The invention also discloses application of the mask in preparation of masks and air purification equipment. The lining of the invention can ensure that the virus, bacteria and fine dust in the air can be effectively filtered in a long service life. The used lining can be reused after simple treatment.

Description

Anti-virus air filter element and application thereof
Technical Field
The invention relates to the technical field of chemistry, in particular to an anti-virus air filter element and application thereof.
Background
With the development of human population and industry, air pollution is serious, dust, metal particles, sulfides, nitrates, organic hydrocarbons and the like exist in the air, viruses and bacteria exist in the air when people contact with people, people and animals, and the substances pollute the air and damage the bodies of people. Heavy metal substances are difficult to excrete after entering the body of people, and remain in the body to slowly destroy organs and nervous systems of the body of people. The viruses and bacteria directly bring diseases to people after entering the bodies of people, for example, the death number of people caused by influenza viruses is more than tens of thousands of people every year in the world, and the trend is rising in recent years.
Theoretically, people can effectively block viruses in the air by wearing the mask. Many gauze masks on the market at present are simply prevent the droplet and filter large granule dust gauze mask, and are disposable article mostly, and disposable article use amount is big, can not effectively retrieve after the use and bring secondary pollution easily, causes the infection of refuse treatment staff easily, and the risk that causes virus secondary diffusion is great.
At present, 84 disinfectant and chlorine dioxide are better used for disinfection and sterilization in the market, the sterilization rate of the two disinfectant reaches 99.9%, and pathogenic bacteria in the air can be basically killed. Chlorine dioxide is a broad-spectrum, highly efficient sterilizing agent. Many foreign research results show that chlorine dioxide can kill many pathogenic bacteria such as escherichia coli, staphylococcus aureus and the like at an extremely low concentration (0.1 ppm). Even if the microorganism is interfered by organic substances, the microorganism can be completely killed when the concentration is tens of ppm. Chlorine dioxide is widely used in life because it is non-toxic to human body. However, the application of the mask is difficult because chlorine dioxide is in a gaseous state at normal temperature and is not easy to store. The common way of storing chlorine dioxide in industry is to formulate it into a solution and make it into a solid effervescent tablet. The liquid chlorine dioxide applied to the mask has large volume and inconvenient use, and has no practical significance. The solid flaky chlorine dioxide is not breathable, is easy to leak after being prepared into particles and fine powder, is easy to cause particle accumulation, is not uniformly distributed, and leaks air without passing through a solid layer, so that the solid flaky chlorine dioxide cannot be effectively filtered and sterilized.
Disclosure of Invention
The invention aims to provide an anti-virus air filter element and application thereof, so as to solve the defects of the prior art.
The invention adopts the following technical scheme:
the invention provides an anti-virus air filter element, which comprises a coat and a lining, wherein the lining is a recyclable solid chlorine dioxide-loaded sponge, and the recyclable solid chlorine dioxide-loaded sponge is prepared by the following steps:
step one, adding adsorbent fine powder into 0.5-10wt% chlorine dioxide solution, and uniformly mixing; adding the adhesive and mixing uniformly; wherein the mass ratio of the chlorine dioxide solution to the adsorbent fine powder to the adhesive is 1: 0.1-1.0: 0.05-0.5;
step two, soaking the sponge into the mixed liquid obtained in the step one for 30-60min, and taking out; then squeezing out excessive water in the sponge, and drying and activating for 1-6h at 70-90 ℃.
Further, in the first step, the mass ratio of the chlorine dioxide solution to the adsorbent fine powder to the adhesive is 1: 0.4-0.6: 0.1-0.2.
Further, the sponge material comprises lignocellulose, polyurethane or polyester materials.
Furthermore, the fine adsorbent powder comprises diatomite, silica, talcum powder, activated carbon, molecular sieve or hydroxymethyl cellulose, and the particle size is 20-200 meshes.
Further, the binder comprises starch, dextrin, polyvinyl alcohol, or hydroxymethyl cellulose.
Further, the coat material comprises polypropylene spray-melt cloth, gauze, filter cotton or activated carbon felt.
Further, the liner recycling method is as follows: putting the lining after being used for a period of time into 0.5-10wt% sodium hydroxide solution, and carrying out ultrasonic treatment in an ultrasonic instrument, wherein the ultrasonic frequency is 40-100KHz, the ultrasonic power is 100-1500w, and the ultrasonic time is 20-60 min; and cleaning the sponge in deionized water, and extruding redundant water in the sponge to carry out secondary loading.
The invention provides an application of the anti-virus air filter element in preparing a mask and air purification equipment in a second aspect.
The third aspect of the invention provides a mask, which comprises the anti-virus air filter element.
The invention provides air purification equipment in a fourth aspect, which comprises the anti-virus air filter element.
The invention has the beneficial effects that:
the invention relates to an anti-virus air filter element, which comprises a coat and a lining. The inner liner is a recyclable sponge loaded with solid chlorine dioxide, the solid chlorine dioxide is prepared firstly, is loaded in the sponge, is not easy to run off, is stable, has very slow release speed of chlorine dioxide, and can effectively filter viruses, bacteria and fine dust in the air in a long service life (generally 7-10 days). After being used, the lining can be reused after being simply treated, so that resources are recycled, and environmental pollution is avoided. Compared with the prior method, the method is simple, convenient, effective, green and environment-friendly, and is easy to realize industrialization.
Detailed Description
The present invention will be further explained with reference to examples. The following examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention.
An anti-virus air filter element comprises a coat and a lining.
The coat is used for filtering micro particles, and the material of the coat can be polypropylene spray-melt cloth, gauze, filter cotton or activated carbon felt, but is not limited to the above.
The inner liner is a recyclable sponge loaded with solid chlorine dioxide, and can effectively filter viruses, bacteria and fine dust in the air. The sponge material includes, but is not limited to, lignocellulose, polyurethane or polyester materials. The pore size of the sponge is generally suitable in the range of 20 to 60 ppi.
The recyclable sponge loaded with solid chlorine dioxide is prepared by the following steps:
step one, adding adsorbent fine powder into 0.5-10wt% chlorine dioxide solution, and stirring at 50-300r/min for 10-20min to mix uniformly; adding adhesive, and stirring at 50-300r/min for 10-20min to mix well; wherein the adsorbent fine powder comprises diatomite, silica, talcum powder, activated carbon, molecular sieve or hydroxymethyl cellulose, but is not limited thereto, and the particle size is preferably 20-200 meshes; the binder includes starch, dextrin, polyvinyl alcohol, or hydroxymethyl cellulose, but is not limited thereto; the mass ratio of the chlorine dioxide solution to the adsorbent fine powder to the adhesive is 1: 0.1-1.0: 0.05 to 0.5, preferably 1: 0.4-0.6: 0.1-0.2;
step two, soaking the sponge into the mixed liquid obtained in the step one for 30-60min, and taking out; then squeezing out excessive water in the sponge, and drying and activating for 1-6h at 70-90 ℃.
The liner can be recycled, and the recycling method comprises the following steps: putting the lining used for a period of time, generally 7-10 days, into 0.5-10wt% sodium hydroxide solution, and carrying out ultrasonic cleaning treatment in an ultrasonic instrument, wherein the ultrasonic frequency is 40-100KHz, the ultrasonic power is 100-1500w, and the ultrasonic time is 20-60 min; and cleaning the sponge in deionized water, extruding redundant water in the sponge, and carrying out secondary loading, wherein the secondary loading process is the same as the above.
The anti-virus air filter element can be applied to the preparation of masks and air purification equipment.
The sponge referred to in the following examples was purchased from the Naudian district of Fushan City, Guibei Fanfan foam rubber products factory, product number 75842616.
Example 1 preparation of solid chlorine dioxide loaded sponges that can be recycled.
1. Adding 500g of diatomite fine powder with the particle size of about 30 meshes into 1000ml of chlorine dioxide solution with the concentration of 6 wt%, and stirring for 15min at 150r/min to uniformly mix; then 100g of hydroxymethyl cellulose is added, and the mixture is stirred for 15min at the speed of 150r/min to be uniformly mixed;
2. soaking the sponge into the mixed solution obtained in the step 1 for 30min, and taking out; excess water in the sponge is squeezed out, and then the sponge is put into an oven to be dried and activated for 3 hours at the temperature of 80 ℃.
Example 2 preparation of solid chlorine dioxide loaded sponges that can be recycled.
1. Adding 400g of silicon dioxide fine powder with the particle size of about 50 meshes into 1000ml of chlorine dioxide solution with the concentration of 0.5 wt%, and stirring at 150r/min for 15min to uniformly mix; then 100g of starch is added, and the mixture is stirred for 15min at the speed of 150r/min to be uniformly mixed;
2. soaking the sponge into the mixed solution obtained in the step 1 for 30min, and taking out; excess water in the sponge is squeezed out, and then the sponge is put into an oven to be dried and activated for 6 hours at 70 ℃.
Example 3 preparation of solid chlorine dioxide loaded sponges that can be recycled.
1. Adding 600g of talcum powder with the grain diameter of about 200 meshes into 1000ml of chlorine dioxide solution with the concentration of 10wt%, and stirring for 15min at 150r/min to uniformly mix; then 200g of polyvinyl alcohol is added, and the mixture is stirred for 15min at the speed of 150r/min to be uniformly mixed;
2. soaking the sponge into the mixed solution obtained in the step 1 for 60min, and taking out; excess water in the sponge is squeezed out, and then the sponge is put into an oven to be dried and activated for 1 hour at the temperature of 90 ℃.
The recyclable solid chlorine dioxide-loaded sponge prepared in example 1 was placed in air and tested daily for 10 consecutive days using a chlorine dioxide tester (Shenzhen, Shenshun technologies, Inc., JK40-CLO2), with the results shown in Table 1:
TABLE 1
Time of detection Concentration of Time of detection Concentration of
1day 20ppm 6day 28ppm
2day 30ppm 7day 25ppm
3day 31ppm 8day 20ppm
4day 35ppm 9day 21ppm
5day 32ppm 10day 15ppm
Placing the recyclable sponge loaded with solid chlorine dioxide after being placed for 10 days into 10wt% sodium hydroxide solution, and carrying out ultrasonic cleaning treatment in an ultrasonic instrument with the ultrasonic frequency of 50KHz and the ultrasonic power of 500W for 30 min; and then cleaning the sponge in deionized water, extruding redundant water in the sponge to carry out secondary loading, wherein the secondary loading process is the same as that of the embodiment 1. After another 10 days, the treatment was performed as above. Then, the chlorine dioxide detector was used to detect the chlorine dioxide for 10 days, and the results are shown in table 2:
TABLE 2
Time of detection Concentration of Time of detection Concentration of
1day 21ppm 6day 29ppm
2day 28ppm 7day 30ppm
3day 30ppm 8day 26ppm
4day 36ppm 9day 23ppm
5day 33ppm 10day 18ppm

Claims (8)

1. An anti-virus air filter element is characterized by comprising a coat and a lining, wherein the lining is a recyclable solid chlorine dioxide-loaded sponge, and the recyclable solid chlorine dioxide-loaded sponge is prepared by the following steps:
step one, adding adsorbent fine powder into 0.5-10wt% chlorine dioxide solution, and uniformly mixing; adding the adhesive and mixing uniformly; wherein the mass ratio of the chlorine dioxide solution to the adsorbent fine powder to the adhesive is 1: 0.1-1.0: 0.05-0.5; wherein the adsorbent fine powder comprises diatomite, silicon dioxide, talcum powder, active carbon, molecular sieve or hydroxymethyl cellulose, the particle size is 20-200 meshes, and the adhesive comprises starch, dextrin, polyvinyl alcohol or hydroxymethyl cellulose;
step two, soaking the sponge into the mixed liquid obtained in the step one for 30-60min, and taking out; then squeezing out excessive water in the sponge, and drying and activating for 1-6h at 70-90 ℃.
2. The anti-virus air filter element of claim 1, wherein the mass ratio of the chlorine dioxide solution, the adsorbent fine powder and the adhesive in the first step is 1: 0.4-0.6: 0.1-0.2.
3. The anti-virus air filter of claim 1, wherein the sponge material comprises a lignocellulosic, polyurethane or polyester material.
4. The anti-virus air filter of claim 1, wherein the outer coating material comprises polypropylene spray-melt cloth, gauze, filter cotton or activated carbon felt.
5. The anti-virus air filter of claim 1, wherein the liner is recycled as follows: putting the lining after being used for a period of time into 0.5-10wt% sodium hydroxide solution, and carrying out ultrasonic treatment in an ultrasonic instrument, wherein the ultrasonic frequency is 40-100KHz, the ultrasonic power is 100-1500w, and the ultrasonic time is 20-60 min; and cleaning the sponge in deionized water, and extruding redundant water in the sponge to carry out secondary loading.
6. Use of the anti-virus air filter element according to any one of claims 1 to 5 in the manufacture of masks and air purification devices.
7. A mask comprising the anti-virus air filter of any one of claims 1 to 5.
8. An air cleaning device comprising the anti-virus air filter of any one of claims 1 to 5.
CN202010228903.0A 2020-03-27 2020-03-27 Anti-virus air filter element and application thereof Active CN111389097B (en)

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112167263A (en) * 2020-10-09 2021-01-05 上海骏恺环境工程股份有限公司 Air filter element for slowly releasing and immediately inactivating new coronavirus by taking molecular sieve as carrier
GB2601585B (en) * 2021-07-15 2023-07-12 Bombardier Transp Gmbh Air filter and method for manufacturing an air filter

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CN204048149U (en) * 2014-09-26 2014-12-31 东莞市和域战士纳米科技有限公司 The anti-haze antibacterial mask of a kind of waterproof reused
JP2015101507A (en) * 2013-11-25 2015-06-04 株式会社アイ・イー・ジェー Method for releasing chlorine dioxide
CN105994262A (en) * 2016-05-20 2016-10-12 武汉普优瑞科技有限公司 Chlorine dioxide gas slow-release component and preparation method thereof and aseptic mask with same
CN206809925U (en) * 2017-03-29 2017-12-29 浙江工业大学 A kind of air purifying filter core
CN209630468U (en) * 2018-12-18 2019-11-15 南昌大学 A high-efficiency filter dust and CO gas respirator
CN110507020A (en) * 2019-09-19 2019-11-29 株式会社恩比宇宙 A kind of antibiotic property mask

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CN2621734Y (en) * 2003-06-07 2004-06-30 霍明远 Anti-virus mask
US8678002B2 (en) * 2007-06-26 2014-03-25 Filligent Limited Devices and methods for decreasing human pathogen transmission
CN101716362A (en) * 2009-12-08 2010-06-02 北京欧凯纳斯科技有限公司 Bactericidal disinfectant material containing chlorine dioxide, and application thereof
JP2015101507A (en) * 2013-11-25 2015-06-04 株式会社アイ・イー・ジェー Method for releasing chlorine dioxide
CN204048149U (en) * 2014-09-26 2014-12-31 东莞市和域战士纳米科技有限公司 The anti-haze antibacterial mask of a kind of waterproof reused
CN105994262A (en) * 2016-05-20 2016-10-12 武汉普优瑞科技有限公司 Chlorine dioxide gas slow-release component and preparation method thereof and aseptic mask with same
CN206809925U (en) * 2017-03-29 2017-12-29 浙江工业大学 A kind of air purifying filter core
CN209630468U (en) * 2018-12-18 2019-11-15 南昌大学 A high-efficiency filter dust and CO gas respirator
CN110507020A (en) * 2019-09-19 2019-11-29 株式会社恩比宇宙 A kind of antibiotic property mask

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