CN114130123A - Antibacterial and mildewproof air purification material and preparation method thereof - Google Patents
Antibacterial and mildewproof air purification material and preparation method thereof Download PDFInfo
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- CN114130123A CN114130123A CN202111447235.1A CN202111447235A CN114130123A CN 114130123 A CN114130123 A CN 114130123A CN 202111447235 A CN202111447235 A CN 202111447235A CN 114130123 A CN114130123 A CN 114130123A
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- fibers
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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
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
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- 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
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention provides an air purification material with antibacterial and mildew-proof functions, which comprises a filter layer, a transition layer and a functional layer from top to bottom, wherein the filter layer is formed by mixing and stacking different fibers and comprises support fibers, strength fibers and superfine fibers, the support fibers are polyester fibers with the diameter of 1-2mm and the content of 10-20%, the polyester fibers contain 10-20% of an organic antibacterial agent, the strength fibers are ABS plastic fibers with the diameter of 0.5-1mm and the content of 30-40%, the ABS plastic fibers contain 5-10% of a molecular sieve, 3-10% of zinc oxide and 4-12% of copper oxide, the superfine fibers are polypropylene fibers with the diameter of 0.1-2 mu m and the content of 40-60%, the functional layer is a honeycomb net, functional particles are filled in the honeycomb, and the functional particles are molecular sieves loaded with aluminum oxide and zinc oxide, the content of manganese oxide is 1-3%, and the content of zinc oxide is 2-5%. The invention also discloses a preparation method of the air purification material with the antibacterial and mildewproof functions, and the preparation method has the advantages of simple structure, short production process flow and the like.
Description
Technical Field
The invention belongs to the technical field of air purification, and particularly relates to an antibacterial and mildewproof air purification material and a preparation method thereof.
Background
Air purification material wide application is in equipment fields such as air conditioner ventilation clean system, air purifier, on-vehicle air conditioner filter core, and particulate matter and gaseous pollutant in the air are mainly got rid of to air purification material at present, and the getting rid of particulate matter adopts melt blown fiber to make high efficiency filter, and the filter adopts other pollutants in the active carbon adsorption air when intercepting particulate matter or aerosol pollutant in the air, and high efficiency filter and active carbon filter screen adopt the hot melt adhesive to compound into a whole. After the high-efficiency filter intercepts dust and aerosol in the air, a large amount of dust deposits are formed on the surface and inside of the filter screen, and bacteria, viruses, molds and other microorganisms are easy to breed to cause secondary pollution of bacteria and viruses. The material that constitutes high efficiency filter at present has the resistance big, inefficiency, intensity subalternation problem, in order to raise the efficiency, has to improve material thickness, causes the resistance to increase, because intensity is less, needs to use after compound with skeleton use hot melt adhesive, and the hot melt adhesive volatilizees and causes the filter peculiar smell problem after long-time the use. If the activated carbon is not replaced or treated in time after adsorbing the gaseous pollutants, the pollutants are secondarily emitted, and secondary pollution is caused. The high-efficiency filter and the activated carbon filter screen need to be respectively processed and spliced, and the manufacturing process has long flow and high cost.
Disclosure of Invention
In order to solve the technical problems, the invention discloses an air purification material with antibacterial and mildewproof functions and a preparation method thereof. The air purifier has the advantages of simple structure, short production process flow and the like, can effectively remove particles and microbial aerosol in the air, and effectively prevents microorganisms such as bacteria, viruses, molds and the like from breeding on the surface and inside of a material. Meanwhile, the air filtering material has the advantages of high efficiency, small resistance, high strength and the like, and can stably run for a long time.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air purification material with antibacterial and mildew-proof functions comprises a filter layer, a transition layer and a functional layer from top to bottom, wherein the filter layer is formed by mixing and stacking different fibers and comprises support fibers, strength fibers and superfine fibers, the support fibers are polyester fibers, the diameter of the support fibers is 1-2mm, the content of the support fibers is 10-20%, the polyester fibers contain 10-20% of an organic antibacterial agent, the strength fibers are made of ABS plastic fibers, the diameter of the strength fibers is 0.5-1mm, the content of the strength fibers is 30-40%, the ABS plastic fibers contain 5-10% of a molecular sieve, 3-10% of zinc oxide and 4-12% of copper oxide, the superfine fibers are polypropylene fibers, the diameter of the superfine fibers is 0.1-2 mu m, the content of the superfine fibers is 40-60%, the polypropylene fibers contain 5-10% of nano silver, and the transition layer is made of a nylon net, one side of the functional layer is bonded with the functional layer through hot pressing, the functional layer is a honeycomb network, functional particles are filled in the honeycomb network, the functional particles are formed by loading manganese oxide and zinc oxide on an alumina molecular sieve, the content of the manganese oxide is 1-3%, and the content of the zinc oxide is 2-5%.
Further, the thickness of the filter layer is 2-5 mm.
Further, the thickness of the functional layer is 1-2cm, and the diameter of the honeycomb is 5-20 mm.
Further, the mixed fibers of the filter layer are simultaneously solidified on the transition layer through melt spinning.
Further, the polyester fiber contains organic antibacterial agent such as vanillin or chitin.
Furthermore, the particle size of the molecular sieve in the ABS plastic fiber is 0.1-0.5mm, the particle size of the zinc oxide is 10-50 μm, and the particle size of the copper oxide is 50-100 μm.
Furthermore, the polypropylene fiber contains nano silver with the grain diameter of 20-40 nm.
A preparation method of an antibacterial and mildewproof air purification material comprises the following steps:
the method comprises the following steps: preparing a transition layer, namely flatly paving a nylon net of the transition layer on the honeycomb of the functional layer, and performing hot pressing by adopting a hot pressing plate to tightly combine the transition layer and the functional layer;
step two: preparing a filter layer, namely adding polyester resin powder and an organic antibacterial agent into a mixing tank, fully mixing, melting and stirring to prepare a supporting fiber raw material, mixing ABS plastic particles with zinc oxide, copper oxide and zinc oxide according to a proportion, melting and stirring to prepare a strength fiber raw material, mixing polypropylene resin powder with nano silver according to a proportion, melting to prepare a superfine fiber raw material, respectively placing the three fiber raw materials into spinning equipment, controlling the spinning proportion, simultaneously spinning to the transition layer, and tightly combining liquid fibers in the transition layer after the transition layer is solidified;
step three: and preparing a functional layer, namely putting the alumina molecular sieve in a container, pressurizing to 1-3MPa, keeping for 10-30 minutes to fill gas in pore channels of the molecular sieve, opening the container, adding a mixed solution of manganese nitrate and zinc nitrate into the container, vacuumizing, maintaining for 30-60 minutes to fully replace the gas in the pore channels of the manganese nitrate, zinc nitrate and the alumina molecular sieve, then adding a sodium hydroxide solution into the container, vacuumizing again, maintaining for 10-30 minutes to fully react the manganese nitrate, the zinc nitrate and the sodium hydroxide in the pore channels of the alumina molecular sieve, and drying and filling the alumina molecular sieve into a honeycomb of the functional layer at the temperature of 200-300 ℃.
The air purification material with the antibacterial and mildewproof functions adopts the hot-melt adhesive-free compounding process to compound the functional layer and the transition layer, then directly melt-spinning the transition layer to prepare a filter layer, bonding the filter layer and the transition layer without glue by means of melt-spinning and solidifying on the surface of the transition layer, can prevent that glue from using for a long time and giving out the taste, the filter layer includes that the fibre of three kinds of functions spouts the solidification at the transition layer simultaneously according to a certain proportion, the great polyester fiber of diameter plays and supports the effect to filter layer skeleton, make the filter layer have certain deflection and hardness, ABS plastic strength fibre, play the effect of reinforcing filter layer intensity, prevent that the filter layer from being blown bad at the air purification in-process, polypropylene nanofiber fills between support fiber and strength fibre, reduce the space between two kinds of coarse fibre, play the filter effect to ultrafine particle and aerosol pollutant. Organic antibacterial agent with low mobility is added in the raw materials in the process of melting and spinning polyester fiber with the supporting function, because the supporting fiber is thicker and the mobility of the organic antibacterial agent is low, the organic antibacterial agent can slowly migrate to the surface of the fiber for a long time, so that the supporting fiber has long-term antibacterial action, the diameter of the strength fiber is smaller than that of the supporting fiber, the zinc oxide and copper oxide antibacterial agents with higher mobility are doped in the fiber, the antibacterial agent can be quickly transferred to the surface of the fiber to play the role of antibiosis and mildew prevention, the diameter of the microfiber is minimum, the nano silver antibacterial agent with the smallest particles is used, the nano silver can be quickly transferred to the surface of the microfiber to play the role of quick antibiosis, the three functional fibers are mutually matched with different antibacterial agents, the prepared filter layer has the antibacterial and mildewproof functions for a long time, and has high strength and stiffness and convenient use. The functional layer is filled with an alumina molecular sieve, an internal pore channel of the alumina molecular sieve is opened by adopting gas under high pressure, then the gas in the pore channel is replaced by adopting a mixed solution of manganese nitrate and zinc nitrate under vacuum, so that the manganese nitrate and the zinc nitrate are fully distributed in the alumina pore channel, sodium hydroxide is added, manganese hydroxide and zinc hydroxide are generated on the surface of the alumina molecular sieve and in the pore channel, the mixture is heated and decomposed into manganese oxide and zinc oxide, a layer of mixture of nanoscale manganese oxide and zinc oxide is uniformly covered on the surface of the alumina pore channel, and harmful gases such as formaldehyde, toluene and the like can be fully decomposed.
Drawings
FIG. 1 is a schematic structural diagram of an air purification material with antibacterial and mildewproof functions according to the present invention.
Wherein, 1-filter layer, 2-transition layer, 3-functional layer, 101-supporting fiber, 102-strength fiber, 103-superfine fiber and 301-functional particle.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
The air purification material with the antibacterial and mildewproof functions as shown in figure 1 comprises a filter layer 1, a transition layer 2 and a functional layer 3 from top to bottom, wherein mixed fibers of the filter layer 1 are sprayed on the transition layer 2 through melt spinning for solidification; the filter layer 1 is formed by mixing and stacking different fibers and comprises a supporting fiber 101, a strength fiber 102 and a superfine fiber 103, wherein the supporting fiber 101 is a polyester fiber with the diameter of 1-2mm and the content of 10-20%, the polyester fiber contains 10-20% of an organic antibacterial agent, the strength fiber 102 is made of an ABS plastic fiber with the diameter of 0.5-1mm and the content of 30-40%, the ABS plastic fiber contains 5-10% of a molecular sieve, 3-10% of zinc oxide and 4-12% of copper oxide, the superfine fiber 103 is a polypropylene fiber with the diameter of 0.1-2 mu m and the content of 40-60%, the polypropylene fiber contains 5-10% of nano silver, the transition layer 2 is made of a nylon net, one side of the nylon net is bonded with the functional layer 3 through hot pressing, the functional layer 3 is a honeycomb net, the honeycomb is filled with functional particles 301, the functional particles 301 are formed by loading manganese oxide and zinc oxide on an alumina molecular sieve, the content of the manganese oxide is 1-3%, and the content of the zinc oxide is 2-5%.
In some embodiments, the filter layer 1 is 2-5mm thick.
In some embodiments, the functional layer 3 has a thickness of 1-2cm and the honeycomb has a diameter of 5-20 mm.
In some embodiments, the organic antimicrobial agent is vanillin or chitin.
In some embodiments, the particle size of the molecular sieve in the ABS plastic fiber is 0.1-0.5mm, the particle size of the zinc oxide is 10-50 μm, and the particle size of the copper oxide is 50-100 μm.
In some embodiments, the polypropylene fibers contain nano silver with a particle size of 20-40 nm.
A preparation method of an antibacterial and mildewproof air purification material comprises the following steps:
the method comprises the following steps: preparing a transition layer 2, namely flatly paving a nylon net of the transition layer 2 on the honeycomb of the functional layer 3, and performing hot pressing by adopting a hot pressing plate to tightly combine the transition layer and the functional layer;
step two: preparing a filter layer 1, adding polyester resin powder and an organic antibacterial agent into a mixing tank, fully mixing, melting and stirring to prepare a supporting fiber raw material, mixing ABS plastic particles with zinc oxide, copper oxide and zinc oxide according to a proportion, melting and stirring to prepare a strength fiber raw material, mixing polypropylene resin powder with nano silver according to a proportion, melting to prepare a superfine fiber raw material, respectively placing the three fiber raw materials into a spinning device, controlling the spinning proportion, simultaneously spinning to a transition layer 2, and tightly combining liquid fibers in the transition layer 2 after the transition layer 2 is solidified;
step three: and preparing the functional layer 3, namely putting the alumina molecular sieve in a container, pressurizing to 1-3MPa, keeping for 10-30 minutes to fill gas in pore channels of the molecular sieve, opening the container, adding a mixed solution of manganese nitrate and zinc nitrate into the container, vacuumizing, maintaining for 45 minutes to fully replace the manganese nitrate, the zinc nitrate and the gas in the pore channels of the alumina molecular sieve, then adding a sodium hydroxide solution into the container, vacuumizing again, maintaining for 10-30 minutes to fully react the manganese nitrate, the zinc nitrate and the sodium hydroxide in the pore channels of the alumina molecular sieve, and drying the alumina molecular sieve at 250 ℃ and filling the dried alumina molecular sieve into honeycombs of the functional layer 3.
Those of ordinary skill in the art will understand that: the invention is not to be considered as limited to the specific embodiments thereof, but is to be understood as being modified in all respects, all changes and equivalents that come within the spirit and scope of the invention.
Claims (8)
1. The air purification material with the antibacterial and mildew-proof functions is characterized by comprising a filter layer (1), a transition layer (2) and a functional layer (3) from top to bottom, wherein the filter layer (1) is formed by mixing and stacking different fibers and comprises supporting fibers (101), strength fibers (102) and superfine fibers (103), the supporting fibers (101) are polyester fibers, the diameter of the supporting fibers is 1-2mm, the content of the supporting fibers is 10-20%, the polyester fibers contain 10-20% of an organic antibacterial agent,
the strength fiber (102) is made of ABS plastic fibers, the diameter of the strength fiber is 0.5-1mm, the content of the strength fiber is 30-40%, the ABS plastic fibers contain 5-10% of molecular sieves, 3-10% of zinc oxide and 4-12% of copper oxide, the superfine fiber (103) is polypropylene fibers, the diameter of the superfine fiber is 0.1-2 mu m, the content of the superfine fiber is 40-60%, the polypropylene fibers contain 5-10% of nano silver, the transition layer (2) is made of nylon nets, one side of the transition layer is bonded with the functional layer (3) through hot pressing, the functional layer (3) is a honeycomb net, functional particles (301) are filled in the honeycomb net, the functional particles (301) are made of aluminum oxide molecular sieves loaded with manganese oxide and zinc oxide, the content of the manganese oxide is 1-3%, and the content of the zinc oxide is 2-5%.
2. The antibacterial and mildewproof air purifying material according to claim 1, wherein the thickness of the filter layer (1) is 2-5 mm.
3. The antibacterial and mildewproof air purification material as claimed in claim 1, wherein the thickness of the functional layer is 1-2cm, and the diameter of the honeycomb is 5-20 mm.
4. The antibacterial and mildewproof air purifying material as claimed in claim 1, wherein the mixed fibers of the filter layer (1) are solidified on the transition layer (2) by melt spinning and spraying at the same time.
5. The air purification material of claim 1, wherein the organic antibacterial agent is vanillin or chitin.
6. The antibacterial and mildewproof air purification material as claimed in claim 1, wherein the particle size of the molecular sieve in the ABS plastic fiber is 0.1-0.5mm, the particle size of the zinc oxide is 10-50 μm, and the particle size of the copper oxide is 50-100 μm.
7. The antibacterial and mildewproof air purification material as claimed in claim 1, wherein the polypropylene fibers contain nano silver with the particle size of 20-40 nm.
8. The preparation method of the antibacterial and mildewproof air purifying material according to any one of claims 1 to 7, comprising the following steps of:
the method comprises the following steps: preparing a transition layer (2), namely flatly paving a nylon net of the transition layer (2) on the honeycomb of the functional layer (3), and performing hot pressing by adopting a hot pressing plate to tightly combine the transition layer and the functional layer;
step two: preparing a filter layer (1), adding polyester resin powder and an organic antibacterial agent into a mixing tank, fully mixing, melting and stirring to prepare a supporting fiber raw material, mixing ABS plastic particles with zinc oxide, copper oxide and zinc oxide according to a proportion, melting and stirring to prepare a strength fiber raw material, mixing polypropylene resin powder with nano silver according to a proportion, melting to prepare a superfine fiber raw material, respectively placing the three fiber raw materials into spinning equipment, controlling the spinning proportion, simultaneously spinning to a transition layer (2), and tightly combining liquid fibers in the transition layer (2) after the transition layer (2) is solidified;
step three: and (3) preparing the functional layer, namely putting the alumina molecular sieve in a container, pressurizing to 1-3MPa, keeping for 10-30 minutes to fill gas in pore channels of the molecular sieve, opening the container, adding a mixed solution of manganese nitrate and zinc nitrate into the container, vacuumizing, maintaining for 30-60 minutes to fully replace the manganese nitrate, the zinc nitrate and the gas in the pore channels of the alumina molecular sieve, then adding a sodium hydroxide solution into the container, vacuumizing again, maintaining for 10-30 minutes to fully react the manganese nitrate, the zinc nitrate and the sodium hydroxide in the pore channels of the alumina molecular sieve, and drying and filling the alumina molecular sieve into honeycombs of the functional layer (3) at the temperature of 200-300 ℃.
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| CN202111447235.1A CN114130123B (en) | 2021-12-01 | 2021-12-01 | Antibacterial and mildewproof air purification material and preparation method thereof |
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| CN202111447235.1A CN114130123B (en) | 2021-12-01 | 2021-12-01 | Antibacterial and mildewproof air purification material and preparation method thereof |
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| CN114130123B CN114130123B (en) | 2023-03-28 |
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| CN114130123B (en) | 2023-03-28 |
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