CN110960965A - Preparation method of air purification fiber filter - Google Patents
Preparation method of air purification fiber filter Download PDFInfo
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- CN110960965A CN110960965A CN201811147542.6A CN201811147542A CN110960965A CN 110960965 A CN110960965 A CN 110960965A CN 201811147542 A CN201811147542 A CN 201811147542A CN 110960965 A CN110960965 A CN 110960965A
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- deionized water
- mixed solution
- graphene
- base material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/22—Ionisation
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Abstract
The invention relates to a preparation method of an air purification fiber filter, which is characterized by comprising the following steps of ① preparing a graphene base material, wherein graphene and first deionized water are uniformly mixed to form slurry, ② adding second deionized water into the graphene base material, stirring uniformly, adding waterborne polyurethane, continuously stirring uniformly to obtain a basic base material, ③ adding third deionized water into a mixture of diatomite and sepiolite, stirring uniformly to obtain a first mixed solution, adding formaldehyde absorption liquid into the first mixed solution, mixing uniformly to obtain a second mixed solution, ④ adding fourth deionized water into negative ion powder, mixing uniformly to obtain a third mixed solution, adding the basic base material and the second mixed solution into the third mixed solution, mixing uniformly to obtain a spray coating, ⑤ spraying the spray coating on one surface of filter paper by using an air compressor and a spray gun to form a coating, and drying to obtain the air purification filter screen.
Description
Technical Field
The invention relates to the field of air purification, in particular to a preparation method of an air purification fiber filter with functions of releasing negative ions and purifying VOC.
Background
The causes of serious indoor air pollution are many, and the related aspects are wide. The method can be mainly divided into three aspects of chemical pollution, physical pollution and biological pollution. The chemical pollution mainly comes from indoor decoration activities and the like, and comprises the release of volatile organic compounds VOC such as formaldehyde, benzene series and the like. The physical pollution is from buildings and partial household appliances, and is mainly some radioactive substances. The biological pollution is mainly some bacteria and germs, etc. Diversified indoor air pollution harms the health of people.
Disclosure of Invention
The invention aims to solve the technical problem of providing a preparation method of an air purification fiber filter capable of effectively absorbing VOC in air and releasing negative ions aiming at the current situation of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: the preparation method of the air purification fiber filter is characterized by comprising the following steps:
① preparation of graphene primer
Uniformly mixing graphene and first deionized water to form slurry; the solid content of graphene in the slurry is 2-3 wt%; preferably 2.5 wt%;
② preparation of basic primer
Adding second deionized water into the graphene base material, stirring uniformly, adding waterborne polyurethane, and continuously stirring until the materials are uniformly mixed to obtain a basic base material;
the amount of the second deionized water is 10-50 wt% of the graphene base material; the using amount of the waterborne polyurethane is 1-4 times of the sum of the weight of the graphene substrate and the second deionized water;
③ preparation of VOC absorbing solutions
Adding third deionized water into the mixture of the diatomite and the sepiolite, and stirring until the third deionized water and the sepiolite are uniformly mixed to obtain a first mixed solution;
the diatomite and the sepiolite are both nano-scale powder, and the weight ratio of the diatomite to the sepiolite is 1: 3-1: 6; the dosage of the third deionized water is 3-7 times of the sum of the weight of the diatomite and the sepiolite;
adding formaldehyde absorption liquid into the first mixed liquid, and uniformly mixing to obtain a second mixed liquid;
the weight ratio of the first mixed solution to the formaldehyde absorption solution is 4: 1-2: 1;
④ preparation of spray paint
Adding fourth deionized water into the anion powder, and uniformly mixing to obtain a third mixed solution;
adding the basic backing material and the second mixed solution into the third mixed solution, and uniformly mixing to obtain a spray coating;
the dosage of the fourth deionized water is 3-8 times of the weight of the negative ion powder; the using amount of the basic base material is 25-50 wt% of the third mixed solution; the amount of the second mixed solution is 25-50 wt% of the third mixed solution;
⑤ preparing air purifying fiber filter
Spraying the spray paint onto one surface of the filter paper by using an air compressor and a spray gun to form a coating; controlling the thickness of the coating to be 0.1-1 mm;
and after the spraying is finished, drying the filter paper with the coating for 1-3min at the temperature of 60-100 ℃, and preparing the filter paper into a fiber filter according to a conventional method to obtain the high-efficiency air purification fiber filter capable of releasing negative ions and purifying VOC.
Preferably, the anion powder is commercially available nano anion powder.
The formaldehyde absorption liquid in the scheme is commercially available.
Compared with the prior art, the air purification fiber filter prepared by the invention is considered from an indoor air pollution source, can release negative ions while filtering and removing particles, kill bacteria in the air, absorb VOC (volatile organic compounds) such as formaldehyde and the like, purify and refresh the air and solve the indoor pollution problem.
Detailed Description
The present invention will be described in further detail with reference to examples.
The preparation method of the air purification fiber filter is characterized by comprising the following steps:
① preparation of graphene primer
Uniformly mixing graphene and first deionized water to form slurry; the solid content of graphene in the slurry was 2.5 wt%;
② preparation of basic primer
Adding second deionized water into the graphene base material, stirring uniformly, adding waterborne polyurethane, and continuously stirring until the materials are uniformly mixed to obtain a basic base material;
the using amount of the second deionized water is 30 wt% of the graphene substrate; the using amount of the waterborne polyurethane is 3 times of the sum of the weight of the graphene substrate and the second deionized water;
③ preparation of VOC absorbing solutions
Adding third deionized water into the mixture of the diatomite and the sepiolite, and stirring until the third deionized water and the sepiolite are uniformly mixed to obtain a first mixed solution;
the diatomite and the sepiolite are both nano-scale powder, and the weight ratio of the diatomite to the sepiolite is 1: 5; the dosage of the third deionized water is 5 times of the sum of the weight of the diatomite and the sepiolite;
adding formaldehyde absorption liquid into the first mixed liquid, and uniformly mixing to obtain a second mixed liquid;
the weight ratio of the first mixed solution to the formaldehyde absorption solution is 3: 1;
the formaldehyde absorption liquid used in this example was commercially available from manufacturers: shanghai Zheng nanometer science and technology Limited, type: nanometer silver-based formaldehyde elimination solution AGS-JQX. And formaldehyde absorption liquid products of other manufacturers can be selected according to requirements.
④ preparation of spray paint
Adding fourth deionized water into the anion powder, and uniformly mixing to obtain a third mixed solution;
adding the basic backing material and the second mixed solution into the third mixed solution, and uniformly mixing to obtain a spray coating;
the dosage of the fourth deionized water is 5 times of the weight of the negative ion powder; the using amount of the basic base material is 35 wt% of the third mixed solution; the dosage of the second mixed solution is 35 wt% of the third mixed solution;
the negative ion powder used in this example is a nano negative ion powder produced by Shanghai Zhengnzhi nano-Tech Co., Ltd.
⑤ preparing air purifying fiber filter
Spraying the spray paint onto one surface of the filter paper by using an air compressor and a spray gun to form a coating; controlling the thickness of the coating to be 0.5 mm;
and after the spraying is finished, drying the filter paper with the coating for 2min at the temperature of 80 +/-5 ℃, and then folding and fixing the filter paper in a frame according to a conventional method to obtain the high-efficiency air purification fiber filter capable of releasing negative ions and purifying VOC.
In this example, the size of the fiber filter was 301mm 203mm 20mm, and the amount of negative ion released from the filter mesh was measured by a negative ion detector of NT-C101A from Nippon Tianshi. The results are shown in Table 1.
Placing the filter screen at 3m3In an environment test cabin, a brontong air quality detector is used for detecting a formaldehyde CARD value and a TVOC CARD value, the formaldehyde CARD value and the TVOC CARD value are respectively placed on the left side, the right side and the back of a box body for detection, and test data are selected from the average values of three groups. The test temperature is 25 plus or minus 2 ℃, the relative humidity is 50 plus or minus 10 percent, the inlet face speed is 0.550m/s, and the air intake is 118.749m3H; the test results are shown in table 1.
TABLE 1
| Test items | Test results |
| Formaldehyde CARD value (m)3/h) | 18.864 |
| TVOC CARD value (m)3/h) | 19.494 |
| Negative ion release amount (per cm)3) | 3371 |
As can be seen from Table 1, the filter screen prepared by the embodiment can effectively remove formaldehyde and VOC and release negative ions.
Claims (4)
1. The preparation method of the air purification fiber filter is characterized by comprising the following steps:
① preparation of graphene primer
Uniformly mixing graphene and first deionized water to form slurry; the solid content of graphene in the slurry is 2-3 wt%;
② preparation of basic primer
Adding second deionized water into the graphene base material, stirring uniformly, adding waterborne polyurethane, and continuously stirring until the materials are uniformly mixed to obtain a basic base material;
the amount of the second deionized water is 10-50 wt% of the graphene base material; the using amount of the waterborne polyurethane is 1-4 times of the sum of the weight of the graphene substrate and the second deionized water;
③ preparation of VOC absorbing solutions
Adding third deionized water into the mixture of the diatomite and the sepiolite, and stirring until the third deionized water and the sepiolite are uniformly mixed to obtain a first mixed solution;
the diatomite and the sepiolite are both nano-scale powder, and the weight ratio of the diatomite to the sepiolite is 1: 3-1: 6; the dosage of the third deionized water is 3-7 times of the sum of the weight of the diatomite and the sepiolite;
adding formaldehyde absorption liquid into the first mixed liquid, and uniformly mixing to obtain a second mixed liquid;
the weight ratio of the first mixed solution to the formaldehyde absorption solution is 4: 1-2: 1;
④ preparing the filter screen
Adding fourth deionized water into the anion powder, and uniformly mixing to obtain a third mixed solution;
adding the basic backing material and the second mixed solution into the third mixed solution, and uniformly mixing to obtain a spray coating;
the dosage of the fourth deionized water is 3-8 times of the weight of the negative ion powder; the using amount of the basic base material is 25-50 wt% of the third mixed solution; the amount of the second mixed solution is 25-50 wt% of the third mixed solution;
⑤ preparing air purifying fiber filter
Spraying the spray paint onto one surface of the filter paper by using an air compressor and a spray gun to form a coating; controlling the thickness of the coating to be 0.1-1 mm;
and after the spraying is finished, drying the filter paper with the coating for 1-3min at the temperature of 60-100 ℃, and then preparing the filter paper into a fiber filter according to a conventional method to obtain the high-efficiency air purification fiber filter capable of releasing negative ions and purifying VOC.
2. The method of claim 1, wherein the anion powder is commercially available nano anion powder.
3. The method of claim 1, wherein the graphene primer contains graphene with a solid content of 2.5 wt%.
4. The method of manufacturing an air-cleaning fiber filter according to any one of claims 1 to 3, wherein the formaldehyde absorbing solution is commercially available.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811147542.6A CN110960965A (en) | 2018-09-29 | 2018-09-29 | Preparation method of air purification fiber filter |
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| CN201811147542.6A CN110960965A (en) | 2018-09-29 | 2018-09-29 | Preparation method of air purification fiber filter |
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| CN110960965A true CN110960965A (en) | 2020-04-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112940606A (en) * | 2021-01-11 | 2021-06-11 | 宁波方太厨具有限公司 | Antibacterial formaldehyde-removing conductive coating and preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765455A (en) * | 2008-04-30 | 2010-06-30 | Lg电子株式会社 | Air cleaning filter comprising formaldehyde dehydrogenase and process for producing the same |
| CN201823408U (en) * | 2010-10-23 | 2011-05-11 | 蚌埠汉邦纳米新材料研究所有限公司 | Filtering paper of air filter |
| CN106192376A (en) * | 2016-07-08 | 2016-12-07 | 张麟德 | Grapheme material coating and preparation method thereof and air filter and system |
| CN106592893A (en) * | 2016-10-27 | 2017-04-26 | 杭州毕仕大纺织有限公司 | Seamless wall cloth capable of purifying air and releasing anions |
-
2018
- 2018-09-29 CN CN201811147542.6A patent/CN110960965A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101765455A (en) * | 2008-04-30 | 2010-06-30 | Lg电子株式会社 | Air cleaning filter comprising formaldehyde dehydrogenase and process for producing the same |
| CN201823408U (en) * | 2010-10-23 | 2011-05-11 | 蚌埠汉邦纳米新材料研究所有限公司 | Filtering paper of air filter |
| CN106192376A (en) * | 2016-07-08 | 2016-12-07 | 张麟德 | Grapheme material coating and preparation method thereof and air filter and system |
| CN106592893A (en) * | 2016-10-27 | 2017-04-26 | 杭州毕仕大纺织有限公司 | Seamless wall cloth capable of purifying air and releasing anions |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112940606A (en) * | 2021-01-11 | 2021-06-11 | 宁波方太厨具有限公司 | Antibacterial formaldehyde-removing conductive coating and preparation method and application thereof |
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Application publication date: 20200407 |