CN107569967B - It is a kind of for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC and preparation method thereof - Google Patents
It is a kind of for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC and preparation method thereof Download PDFInfo
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- CN107569967B CN107569967B CN201710720793.8A CN201710720793A CN107569967B CN 107569967 B CN107569967 B CN 107569967B CN 201710720793 A CN201710720793 A CN 201710720793A CN 107569967 B CN107569967 B CN 107569967B
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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
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Abstract
The present invention relates to air purification fields, disclose a kind of for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC and preparation method thereof.The air-purifying piece is combined by upper filter layer, cocoanut active charcoal interlayer and lower filter layer；The upper filter layer and lower filter layer are polypropylene non-woven fabric, and the cocoanut active charcoal interlayer is coated on upper filter layer by the mixing material that cocoanut active charcoal particle, the catalyst being carried on cocoanut active charcoal particle, calcium chloride and binder form or lower filter layer surface cure forms.Vehicle-mounted air purification piece of the invention can not only be filtered the particulate matter in air, also carry out the pernicious gases such as formaldehyde adsorption and TVOC using cocoanut active charcoal as primary attachment material, adsorption effect is good, adsorption capacity is big, and its degradation can also be made after absorption, it is completely removed from source, extends the replacement cycle of purifying tablets.
Description
Technical field
The present invention relates to air purification field more particularly to a kind of vehicle-mounted air purification pieces for formaldehyde adsorption and TVOC
And preparation method thereof.
Background technique
Urban environment is heavily contaminated in recent years, and especially air pollution is the most serious.According to the relevant departments of the investigation data
It has been shown that, other than Particulate Pollution, the also main pollution including formaldehyde and TVOC.The main ingredient of TVOC include: benzene homologues,
Organic chloride, freon series, organic ketone, amine, alcohol, ether, ester, acid and petroleum hydrocarbon compound etc..Formaldehyde and TVOC stimulate eye
Eyeball and respiratory tract injure liver, the kidney, brain and nervous system of people.Their toxicity, irritation, carcinogenicity and special smell
Property, it will affect skin and mucous membrane, acute lesion generated to human body.It can be seen that it is that need not set that formaldehyde and TVOC, which are harmful to the human body,
Doubtful.The main source of TVOC is in outdoor, mainly from fuel combustion and communications and transportation: and indoors then mainly from coal-fired and
The smog of the combustion products such as natural gas, smoking, heating and the cooking etc., building and ornament materials in adhesive, coating, paint,
Plate, wallpaper etc., furniture, household electrical appliance, the discharge etc. of furniture, detergent and human body itself.There are as many as nearly thousand kinds.
Air-purifying piece a great variety currently on the market, although many be known as can the substances such as formaldehyde adsorption and TVOC,
But its actual effect is but not obvious.Many products are adsorbed using simple active carbon, but can not be from source
Formaldehyde and TVOC are eliminated, after activated carbon adsorption saturation, just loses effect, therefore the replacement cycle of such air-purifying piece
It is shorter.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of vehicle-mounted air purifications for formaldehyde adsorption and TVOC
Piece and preparation method thereof.Vehicle-mounted air purification piece of the invention can not only be filtered the particulate matter in air, also with coconut palm
Shell active carbon carrys out the pernicious gases such as formaldehyde adsorption and TVOC as primary attachment material, and adsorption effect is good, and adsorption capacity is big, and
It can also make its degradation after absorption, be completely removed from source, extend the replacement cycle of purifying tablets.
The specific technical proposal of the invention is: a kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC, by upper mistake
Filtering layer, cocoanut active charcoal interlayer and lower filter layer are combined；The upper filter layer and lower filter layer are polypropylene non-woven fabric, institute
State what cocoanut active charcoal interlayer was made of cocoanut active charcoal particle, the catalyst being carried on cocoanut active charcoal particle and binder
Mixing material is coated on filter layer or lower filter layer surface cure forms.
Air-purifying piece of the invention is three-layer composite structure, and wherein middle layer is cocoanut active charcoal interlayer, for adsorbing
Formaldehyde, benzene class, secondhand smoke and other gaseous state harmful organic substances with peculiar smell in air.The present invention selects cocoanut active charcoal
As primary attachment material, have the characteristics that high iodine number, aperture structure hypertrophy and adsorption capacity are very big, intensity >=
95%, iodine number >=1000mg/g, Carbon tetrachloride adsorptive value >=60%, ash≤5%, ph value 7, the adsorption saturation of cocoanut active charcoal
Degree is 40 times of active carbon.
Furthermore there is catalyst in the pore surface load of cocoanut active charcoal, which can be to being adsorbed by cocoanut active charcoal
Formaldehyde and TVOC carry out effective catalytic degradation, can not only inherently completely remove formaldehyde and TVOC, and " can also rise in time
Hole on its active carbon occupied out ", extends the replacement cycle of purifying tablets.
Calcium chloride functions as desiccant dehumidification agent in cocoanut active charcoal interlayer, and the substances such as formaldehyde generate after being degraded
Carbon dioxide and water, and the presence of water will affect the absorption of cocoanut active charcoal and the filter effect of air intake surface, lower filter layer.And
Calcium chloride, which can absorb water, generates hydrate, and purifying tablets is kept to be chronically at drying regime.
Preferably, the thickness of the upper filter layer, cocoanut active charcoal interlayer and lower filter layer is 0.8-1.2mm.
Preferably, cocoanut active charcoal particle accounts for 80-90wt% in the cocoanut active charcoal interlayer, catalyst accounts for 1-
5wt%, binder account for 10-15wt%.
Preferably, the partial size of the cocoanut active charcoal is 0.1-10 microns.
Preferably, the catalyst is selected from platinum, the oxide of platinum, nano-titanium dioxide；The binder is formaldehydeless
Soy-based adhesives.
Preferably, upper filter layer is the polypropylene non-woven fabric with Electrostatic Absorption function, by following mass percent
Raw material is made:
Polypropylene 80-84%,
Modified natural fibers element 1-3%,
Hydrophobic cyclodextrin 1-2%,
Modified seawater fishbone dust 1-10%,
Silane coupling agent 0.5-1.5%,
Polytetrafluoroethylene (PTFE) 8-12%.
As the vehicle-mounted air purification piece that can be used for air conditioning air outlet, usually require that first is that filter effect is good, can stop or
Adsorb most of particulate matter；Second is that windage wants small, the air inlet/outlet efficiency of air-conditioning is not influenced as far as possible.Filtering in the prior art
Piece is generally only common non-woven fabrics, in order to guarantee its air permeability, reduces windage, usually has very big porosity, but such as
This just affects its filter efficiency.If be bound to porosity to be reduced to improve filter efficiency again, and it will affect outlet air efficiency,
Thus can not be satisfactory to both parties.
Upper filter layer of the invention utilizes electrostatic absorption principle, the lesser condition of windage higher in the porosity of non-woven fabrics
Under also the particulate matters such as PM2.5, pollen, dust, flue dust, dust mite in air can effectively be filtered, adsorbed.
It is primary raw material that the non-woven fabrics of upper filter layer, which selects polypropylene, in the present invention, first by polypropylene and modified natural fibers
Non-woven fabrics is made in plain, hydrophobic cyclodextrin, modified seawater fishbone dust and silane coupling agent mixed melting, spray fusing, due to multiple in fiber
Conjunction has hydrophobic cyclodextrin, modified seawater fishbone dust and nanometer sepiolite, and cyclodextrin has hydrophobic cavity, to hydrophobicity object
Matter has adsorptivity；Modified seawater fishbone dust has high porosity after treatment, has preferable adsorptivity.When cyclodextrin with
After modified seawater fishbone dust is uniformly distributed in fibrous inside, non-woven fabrics can be enhanced to the adsorption capacity of ptfe emulsion,
So that ptfe emulsion sufficiently infiltrates non-woven fabrics, permeates.Thus overcome common non-woven fabric pair in the prior art
The poor technical problem of ptfe emulsion adsorption effect.Since modified seawater fishbone dust belongs to inorganic matter, in polypropylene etc.
The middle dispersibility and compatibility of organic matter are poor, and the effect of silane coupling agent is can to overcome this technical problem.In addition, modified
The addition of seawater fishbone dust, on the one hand its own extra hole can also adsorb the peculiar smell in fine particle and air, another
Aspect can also make non-woven fabrics have hollow structure to a certain degree, to have the function of that absorbing wind makes an uproar, reduces noise.
After non-woven fabrics is made, non-woven fabrics is impregnated in ptfe emulsion, non-woven fabrics can be greatly improved to poly-
The adsorbance of tetrafluoroethene lotion.
Preferably, the modified seawater fishbone dust the preparation method is as follows: seawater fish-bone is cleaned and is roughly ground to 80-
120 mesh are then placed into Muffle furnace under anoxic condition and are warming up to 250-450 DEG C, taken out after calcining 1-3h and refine to
400-800 mesh obtains calcining seawater fishbone dust, will calcine seawater fishbone dust and butyl titanate, octadecanoic acid mass ratio 20:
(0.5-1.5): (0.5-1) mixing grinds 20-40min at 65-75 DEG C, and modified seawater fishbone dust is made.
Seawater fish-bone is natural biomass materials, is roasted at relatively low temperature after corase grinding, to remove seawater fish-bone base
Organic matter in matter, after organic matter removes, fish bone matrix is rendered as loose porous shape, has very high porosity, has
Higher adsorption capacity.Unmodified seawater fishbone dust is rendered as hydrophily, and polytetrafluoroethylene (PTFE) is lyophobic dust, uses metatitanic acid
Butyl ester and octadecanoic acid are modified to its, seawater fishbone dust can be made to have hydrophobicity, to further increase to polytetrafluoro
The adsorption capacity of ethylene.There is seawater fishbone dust hydrophobic benefit to also reside in: due in the environment of higher levels of humidity, it is not easy to
Electrostatic is generated, and unmodified seawater fishbone dust has preferable hygroscopicity will necessarily be serious after a large amount of moisture absorptions of seawater fishbone dust
Influence Electrostatic Absorption effect.To after seawater fishbone dust hydrophobic treatment its not will do it moisture absorption, can ensure that for a long time non-woven fabrics is in
Drying regime fails relatively slow so as to make non-woven fabrics muchly keep electrostatic.
Preferably, modified natural fibers element the preparation method is as follows: by the wooden particle temperature be 50-60 DEG C, it is dense
25-35min is impregnated in the hydrogen peroxide solution that degree is 10-20wt%, takes out and drains after immersion, add water boiling at 120-130 DEG C
1-2h；Then being concentrated into solid content is 30-40wt%, is cooled to room temperature, and is added containing lactic acid bacteria, saccharomycete mixed bacteria liquid and makes
The control of bacterium total concentration is in hundred million/mL of 0.1-0.3, microbial fermentation 2-4 days at 20-30 DEG C in solution；Finally by product water
It is dried after washing, separation, modified natural fibers element is made.
The present invention first uses hydrogen peroxide impreg particle that the lignin in the wooden particle and cellulose are separated, and then passes through
Further boiling, promotes lignin dissolution to separate with cellulose, is then fermented using Mixed Microbes, can largely eliminate fibre
Dimension element on free hydroxyl group, further increase the hydrophobicity of cellulose, so on the one hand can increase cellulose with it is polyacrylic
On the other hand compatibility reduces its water imbibition, prevent Electrostatic Absorption decreased effectiveness.
Preferably, the lower filter layer is the polypropylene non-woven fabric for being compounded with antibacterial material；The antibacterial material is selected from
Polypeptide silver and quaternary amine antibacterial agent.
It is compounded with the polypropylene non-woven fabric of antibacterial material, bactericidal effect can be played, especially for Staphylococcus aureus
Bacterium and Escherichia coli have compared with high inhibition ability.
A kind of preparation method for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC, comprising the following steps:
1) preparation of filter layer on:
1.1) by polypropylene chip and modified natural fibers element, hydrophobic cyclodextrin, modified seawater fishbone dust, nanometer Hai Pao
Stone, silane coupling agent mix according to the ratio, are added to heating melting in thermofusion device, obtain compounding flux；
1.2) non-woven fabrics is made by jet melting method in compounding flux；
1.3) polytetrafluoroethylene (PTFE) is formulated as ptfe emulsion, nonwoven is distributed in poly- four that concentration is 30-50wt%
5-15min is impregnated in vinyl fluoride lotion, then carries out 100-140 DEG C of hot-pressing processing, is finally made and was gone up after drying and shaping
Filtering layer；
2) preparation of filter layer under；
3) preparation of cocoanut active charcoal interlayer: catalyst is carried on cocoanut active charcoal particle, then with binder by matching
Than being made into mixing material, stir evenly after slurry is made, be coated on filter layer or lower filter layer, finally by lower filter layer or on
Filter layer is covered on slurry, after hot pressing, solidification, drying, finished product.
The method of the present invention is first by polypropylene chip and modified natural fibers element, hydrophobic cyclodextrin, modified seawater fishbone dust, silicon
Non-woven fabrics is made according to traditional non-woven cloth melt-blown preparation method in alkane coupling agent mixing hot melt, and non-woven fabrics is then impregnated in polytetrafluoro
In vac emulsion, non-woven fabrics can greatly be so improved to the adsorption capacity of ptfe emulsion, to enhance non-woven fabrics
Electrostatic Absorption ability and persistence.
It is compared with the prior art, the beneficial effects of the present invention are:
1, vehicle-mounted air purification piece of the invention can not only be filtered the particulate matter in air, also with coconut activated
Charcoal carrys out the pernicious gases such as formaldehyde adsorption and TVOC as primary attachment material, and adsorption effect is good, and adsorption capacity is big, and is adsorbing
After can also make its degradation, completely removed from source, extend the replacement cycle of purifying tablets.
2, filter layer is big to the load capacity of Electrostatic Absorption agent in the present invention, fastness is high, to PM2.5, pollen, dust, flue dust,
The Electrostatic Absorption effect of the particulate matters such as dust mite is good, and air permeability is good, and windage is small；But also there is antibacterial, decrease of noise functions.
Specific embodiment
The present invention will be further described with reference to the examples below.
Embodiment 1
A kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC, by upper filter layer, cocoanut active charcoal interlayer and under
Filter layer is combined；The upper filter layer and lower filter layer are polypropylene non-woven fabric, and the cocoanut active charcoal interlayer is by coconut husk
The mixing material that active carbon particle, the catalyst being carried on cocoanut active charcoal particle, calcium chloride and binder form is coated on
Upper filter layer or lower filter layer surface cure form.
Wherein, the thickness of the upper filter layer, cocoanut active charcoal interlayer and lower filter layer is 1mm.
In the cocoanut active charcoal interlayer, cocoanut active charcoal particle (partial size is 1 microns) accounts for 85wt%, and catalyst accounts for
2wt%, calcium chloride account for 1wt%, and binder accounts for 12wt%.
The catalyst is platinum.The binder is formaldehydeless soy-based adhesives.
The upper filter layer is made by the raw material of following mass percent:
Polypropylene 82%, modified natural fibers element 2%, hydrophobic cyclodextrin 1.5%, modified seawater fishbone dust 5.5%, silane
Coupling agent 1%, polytetrafluoroethylene (PTFE) 8%.
The modified seawater fishbone dust the preparation method is as follows: seawater fish-bone is cleaned and is roughly ground to 100 mesh, then place
350 DEG C are warming up under anoxic condition in Muffle furnace, taken out after calcining 2h and is refined to 600 mesh, calcining seawater fish-bone is obtained
Calcining seawater fishbone dust is mixed with butyl titanate, octadecanoic acid mass ratio 20: 1: 0.75, is ground at 70 DEG C by powder
Modified seawater fishbone dust is made in 30min.
Modified natural fibers element the preparation method is as follows: by the wooden particle temperature is 55 DEG C, concentration is 15wt%'s
30min is impregnated in hydrogen peroxide solution, is taken out and is drained after immersion, adds water boiling 1.5h at 125 DEG C；Then being concentrated into solid content is
35wt% is cooled to room temperature, and is added containing lactic acid bacteria, saccharomycete mixed bacteria liquid and is controlled bacterium total concentration in solution 0.2 hundred million
A/mL, microbial fermentation 3 days at 25 DEG C；Finally product is washed with water, separate after dry, be made modified natural fibers element.
The lower filter layer is the polypropylene non-woven fabric for being compounded with antibacterial material；The antibacterial material is polypeptide silver.
The above-mentioned preparation method for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC, comprising the following steps:
1) preparation of filter layer on:
1.1) by polypropylene chip and modified natural fibers element, hydrophobic cyclodextrin, modified seawater fishbone dust, nanometer Hai Pao
Stone, silane coupling agent mix according to the ratio, are added to heating melting in thermofusion device, obtain compounding flux；
1.2) non-woven fabrics is made by jet melting method in compounding flux；
1.3) polytetrafluoroethylene (PTFE) is formulated as ptfe emulsion, nonwoven is distributed in the polytetrafluoroethyl-ne that concentration is 40wt%
10min is impregnated in alkene lotion, then carries out 120 DEG C of hot-pressing processings, and upper filter layer is finally made after drying and shaping；
2) preparation of filter layer under；
3) preparation of cocoanut active charcoal interlayer: catalyst is carried on cocoanut active charcoal particle, then with binder by matching
Than being made into mixing material, stir evenly after slurry is made, be coated on filter layer or lower filter layer, finally by lower filter layer or on
Filter layer is covered on slurry, after hot pressing, solidification, drying, finished product.
Embodiment 2
A kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC, by upper filter layer, cocoanut active charcoal interlayer and under
Filter layer is combined；The upper filter layer and lower filter layer are polypropylene non-woven fabric, and the cocoanut active charcoal interlayer is by coconut husk
The mixing material that active carbon particle, the catalyst being carried on cocoanut active charcoal particle, calcium chloride and binder form is coated on
Upper filter layer or lower filter layer surface cure form.
Wherein, the thickness of the upper filter layer, cocoanut active charcoal interlayer and lower filter layer is 0.8mm.
In the cocoanut active charcoal interlayer, cocoanut active charcoal particle (partial size is 0.1-1 microns) accounts for 82.5wt%, catalyst
1wt% is accounted for, calcium chloride accounts for 1.5wt%, and binder accounts for 15wt%.
The catalyst is the oxide of platinum.The binder is formaldehydeless soy-based adhesives.
The upper filter layer is made by the raw material of following mass percent:
Polypropylene 80%, modified natural fibers element 3%, hydrophobic cyclodextrin 2%, modified seawater fishbone dust 4% are silane coupled
Agent 1.5%, polytetrafluoroethylene (PTFE) 9.5%.
The modified seawater fishbone dust the preparation method is as follows: seawater fish-bone is cleaned and is roughly ground to 80 mesh, then place
250 DEG C are warming up under anoxic condition in Muffle furnace, taken out after calcining 3h and is refined to 400 mesh, calcining seawater fish-bone is obtained
Calcining seawater fishbone dust is mixed with butyl titanate, octadecanoic acid mass ratio 20: 0.5: 0.5, is ground at 65 DEG C by powder
Modified seawater fishbone dust is made in 40min.
Modified natural fibers element the preparation method is as follows: by the wooden particle temperature is 50 DEG C, concentration is 10wt%'s
35min is impregnated in hydrogen peroxide solution, is taken out and is drained after immersion, adds water boiling 2h at 120 DEG C；Then being concentrated into solid content is
30wt% is cooled to room temperature, and is added containing lactic acid bacteria, saccharomycete mixed bacteria liquid and is controlled bacterium total concentration in solution 0.1 hundred million
A/mL, microbial fermentation 4 days at 20 DEG C；Finally product is washed with water, separate after dry, be made modified natural fibers element.
The lower filter layer is the polypropylene non-woven fabric for being compounded with antibacterial material；The antibacterial material is quaternary amine antibacterial
Agent.
The above-mentioned preparation method for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC, comprising the following steps:
1) preparation of filter layer on:
1.1) by polypropylene chip and modified natural fibers element, hydrophobic cyclodextrin, modified seawater fishbone dust, nanometer Hai Pao
Stone, silane coupling agent mix according to the ratio, are added to heating melting in thermofusion device, obtain compounding flux；
1.2) non-woven fabrics is made by jet melting method in compounding flux；
1.3) polytetrafluoroethylene (PTFE) is formulated as ptfe emulsion, nonwoven is distributed in the polytetrafluoroethyl-ne that concentration is 30wt%
15min is impregnated in alkene lotion, then carries out 100 DEG C of hot-pressing processings, and upper filter layer is finally made after drying and shaping；
2) preparation of filter layer under；
3) preparation of cocoanut active charcoal interlayer: catalyst is carried on cocoanut active charcoal particle, then with binder by matching
Than being made into mixing material, stir evenly after slurry is made, be coated on filter layer or lower filter layer, finally by lower filter layer or on
Filter layer is covered on slurry, after hot pressing, solidification, drying, finished product.
Embodiment 3
A kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC, by upper filter layer, cocoanut active charcoal interlayer and under
Filter layer is combined；The upper filter layer and lower filter layer are polypropylene non-woven fabric, and the cocoanut active charcoal interlayer is by coconut husk
The mixing material that active carbon particle, the catalyst being carried on cocoanut active charcoal particle, calcium chloride and binder form is coated on
Upper filter layer or lower filter layer surface cure form.
Wherein, the thickness of the upper filter layer, cocoanut active charcoal interlayer and lower filter layer is 1.2mm.
In the cocoanut active charcoal interlayer, cocoanut active charcoal particle (partial size is 1-10 microns) accounts for 86.5wt%, catalyst
3wt% is accounted for, calcium chloride accounts for 0.5wt%, and binder accounts for 10wt%.
The catalyst is nano-titanium dioxide.The binder is formaldehydeless soy-based adhesives.
The upper filter layer is made by the raw material of following mass percent:
Polypropylene 80%, modified natural fibers element 3%, hydrophobic cyclodextrin 2%, modified seawater fishbone dust 6% are silane coupled
Agent 0.5%, polytetrafluoroethylene (PTFE) 8.5%.
The modified seawater fishbone dust the preparation method is as follows: seawater fish-bone is cleaned and is roughly ground to 120 mesh, then place
450 DEG C are warming up under anoxic condition in Muffle furnace, taken out after calcining 1h and is refined to 800 mesh, calcining seawater fish-bone is obtained
Calcining seawater fishbone dust is mixed with butyl titanate, octadecanoic acid mass ratio 20: 1.5: 1, grinds 20min at 75 DEG C by powder,
Modified seawater fishbone dust is made.
Modified natural fibers element the preparation method is as follows: by the wooden particle temperature is 60 DEG C, concentration is 20wt%'s
25min is impregnated in hydrogen peroxide solution, is taken out and is drained after immersion, adds water boiling 1h at 130 DEG C；Then being concentrated into solid content is
40wt% is cooled to room temperature, and is added containing lactic acid bacteria, saccharomycete mixed bacteria liquid and is controlled bacterium total concentration in solution 0.3 hundred million
A/mL, microbial fermentation 2 days at 30 DEG C；Finally product is washed with water, separate after dry, be made modified natural fibers element.
The lower filter layer is the polypropylene non-woven fabric for being compounded with antibacterial material；The antibacterial material is quaternary amine antibacterial
Agent.
The above-mentioned preparation method for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC, comprising the following steps:
1) preparation of filter layer on:
1.1) by polypropylene chip and modified natural fibers element, hydrophobic cyclodextrin, modified seawater fishbone dust, nanometer Hai Pao
Stone, silane coupling agent mix according to the ratio, are added to heating melting in thermofusion device, obtain compounding flux；
1.2) non-woven fabrics is made by jet melting method in compounding flux；
1.3) polytetrafluoroethylene (PTFE) is formulated as ptfe emulsion, nonwoven is distributed in the polytetrafluoroethyl-ne that concentration is 50wt%
5min is impregnated in alkene lotion, then carries out 140 DEG C of hot-pressing processings, and upper filter layer is finally made after drying and shaping；
2) preparation of filter layer under；
3) preparation of cocoanut active charcoal interlayer: catalyst is carried on cocoanut active charcoal particle, then with binder by matching
Than being made into mixing material, stir evenly after slurry is made, be coated on filter layer or lower filter layer, finally by lower filter layer or on
Filter layer is covered on slurry, after hot pressing, solidification, drying, finished product.
Comparative example 1
Commercially available common electrostatic adsorbs air filter cloth.
Comprehensive performance comparison:
Embodiment 1-3 and the non-woven fabrics of comparative example 1 are subjected to performance comparison, as a result as follows:
| Thickness | Windage | The Electrostatic Absorption retention time | Antibiotic property | |
| Embodiment 1 | 3mm | 2.4 pa | 4-5 | Have |
| Embodiment 2 | 2.4mm | 1.7 pa | 4-5 | Have |
| Embodiment 3 | 3.6mm | 3.0 pa | 4-5 | Have |
| Comparative example 1 | 3mm | 1.9 pa | 2-3 | Nothing |
From the foregoing, it will be observed that the present invention in the case where adding interlayer containing active carbon, only omits compared with common non-woven fabric windage
Greatly, the Electrostatic Absorption retention time is more long, and has antibiotic property.
Formaldehyde and the detection of TVOC adsorption effect:
Formaldehyde and the detection of TVOC adsorption effect are carried out to the air-purifying piece of the embodiment of the present invention 1:
Detect unit: country's chemistry building material quality Supervision Test Center.
Detect the date: on July 25th, 2017.
Detect foundation: QB/T 2761-2006 indoor air purification product clean-up effect measuring method.Remarks: test volume of compartment
Product: 1.5m3；Clarification time: 30min.
Test sample: the vehicle-mounted air purification piece (60cm*60cm*3mm) for formaldehyde adsorption and TVOC.
Amount detection: 15.
Detection data is as follows:
| Serial number | Detection project | Technical requirements | Testing result | Individual event conclusion | Remarks |
| 1 | Formaldehyde removal rate, % | / | 11.7 | / | Clarification time 30min |
| 2 | TVOC removal rate, % | / | 9.13 | / | Clarification time 30min |
From the foregoing, it will be observed that product of the present invention can effectively adsorb formaldehyde in air and TVOC.
Raw materials used in the present invention, equipment is unless otherwise noted the common raw material, equipment of this field；In the present invention
Method therefor is unless otherwise noted the conventional method of this field.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification, change and equivalent transformation to the above embodiments, still fall within the technology of the present invention side
The protection scope of case.
Claims (7)
1. a kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC, it is characterised in that: by upper filter layer, cocoanut active charcoal
Interlayer and lower filter layer are combined；The upper filter layer and lower filter layer are polypropylene non-woven fabric, the cocoanut active charcoal folder
The mixing material that layer is made of cocoanut active charcoal particle, the catalyst being carried on cocoanut active charcoal particle, calcium chloride and binder
Material is coated on filter layer or lower filter layer surface cure forms；
Upper filter layer is the polypropylene non-woven fabric with Electrostatic Absorption function, is made by the raw material of following mass percent:
Polypropylene 80-84%,
Modified natural fibers element 1-3%,
Hydrophobic cyclodextrin 1-2%,
Modified seawater fishbone dust 1-10%,
Silane coupling agent 0.5-1.5%,
Polytetrafluoroethylene (PTFE) 8-12%；
The modified seawater fishbone dust the preparation method is as follows: seawater fish-bone is cleaned and is roughly ground to 80-120 mesh, then place
250-450 DEG C is warming up under anoxic condition in Muffle furnace, taken out after calcining 1-3h and is refined to 400-800 mesh, is forged
Seawater fishbone dust is burnt, by calcining seawater fishbone dust and butyl titanate, octadecanoic acid mass ratio 20:(0.5-1.5): (0.5-1)
Mixing, grinds 20-40min at 65-75 DEG C, and modified seawater fishbone dust is made；
Modified natural fibers element the preparation method is as follows: by the wooden particle temperature is 50-60 DEG C, concentration is 10-20wt%'s
25-35min is impregnated in hydrogen peroxide solution, is taken out and is drained after immersion, adds water boiling 1-2h at 120-130 DEG C；Then it is concentrated into
Solid content is 30-40wt%, is cooled to room temperature, and is added containing lactic acid bacteria, saccharomycete mixed bacteria liquid and makes bacterium total concentration control in solution
System is in hundred million/mL of 0.1-0.3, microbial fermentation 2-4 days at 20-30 DEG C；Finally product is washed with water, separate after dry,
Modified natural fibers element is made.
2. a kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC as described in claim 1, which is characterized in that described
The thickness of upper filter layer, cocoanut active charcoal interlayer and lower filter layer is 0.8-1.2mm.
3. a kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC as described in claim 1, which is characterized in that described
In cocoanut active charcoal interlayer, cocoanut active charcoal particle accounts for 80-90wt%, and catalyst accounts for 1-3wt%, and calcium chloride accounts for 0.5-1.5wt%,
Binder accounts for 10-15wt%.
4. a kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC as described in claim 1, which is characterized in that described
The partial size of cocoanut active charcoal particle is 0.1-10 microns.
5. a kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC as described in claim 1, which is characterized in that described
Catalyst is selected from platinum, the oxide of platinum, nano-titanium dioxide；The binder is formaldehydeless soy-based adhesives.
6. a kind of vehicle-mounted air purification piece for formaldehyde adsorption and TVOC as described in claim 1, which is characterized in that described
Lower filter layer is the polypropylene non-woven fabric for being compounded with antibacterial material；The antibacterial material is selected from polypeptide silver and quaternary amine antibacterial agent.
7. a kind of preparation side for formaldehyde adsorption and the vehicle-mounted air purification piece of TVOC as described in one of claim 1-6
Method, it is characterised in that the following steps are included:
1) preparation of filter layer on:
1.1) by polypropylene chip and modified natural fibers element, hydrophobic cyclodextrin, modified seawater fishbone dust, silane coupling agent by matching
Than mixing, it is added to heating melting in thermofusion device, obtains compounding flux；
1.2) non-woven fabrics is made by jet melting method in compounding flux；
1.3) polytetrafluoroethylene (PTFE) is formulated as ptfe emulsion, nonwoven is distributed in the polytetrafluoroethylene (PTFE) that concentration is 30-50wt%
5-15min is impregnated in lotion, then carries out 100-140 DEG C of hot-pressing processing, and upper filter layer is finally made after drying and shaping；
2) preparation of filter layer under；
3) preparation of cocoanut active charcoal interlayer: catalyst is carried on cocoanut active charcoal particle, then is matched according to the ratio with binder
It at mixing material, stirs evenly after slurry is made, is coated on filter layer or lower filter layer, finally by lower filter layer or upper filtering
Layer is covered on slurry, after hot pressing, solidification, drying, finished product.
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| CN108926912A (en) * | 2018-09-25 | 2018-12-04 | 马硕远 | A kind of anti-haze filter cloth or filter core and haze-proof mask using the anti-haze filter cloth or filter core |
| CN111589428B (en) * | 2020-05-18 | 2023-01-31 | 军事科学院军事医学研究院环境医学与作业医学研究所 | Composite material for purifying air and preparation method thereof |
| CN111790209A (en) * | 2020-07-23 | 2020-10-20 | 张宗洲 | Automobile air conditioner filter screen and interlayer preparation method thereof |
| CN112892199A (en) * | 2021-02-02 | 2021-06-04 | 四川酉荃环保科技有限公司 | Purification sheet capable of decomposing formaldehyde for long time |
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| CN114196178B (en) * | 2021-12-07 | 2024-05-14 | 广东金发科技有限公司 | Polylactic acid melt-blown nonwoven composition, preparation method thereof and product prepared by same |
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