CN1320942C - Air filtering material and its preparation method - Google Patents
Air filtering material and its preparation method Download PDFInfo
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- CN1320942C CN1320942C CNB2004100167006A CN200410016700A CN1320942C CN 1320942 C CN1320942 C CN 1320942C CN B2004100167006 A CNB2004100167006 A CN B2004100167006A CN 200410016700 A CN200410016700 A CN 200410016700A CN 1320942 C CN1320942 C CN 1320942C
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Abstract
The present invention discloses an air filtering material and a preparation method thereof. The air filtering material is formed by mutually twisting and compounding the fiber of a polarized polypropylene non-woven fabric filtering layer and a photocatalyst composite material oxidizing layer containing nanometer particles through needling, and photocatalyst is TiO2. The air filtering material prepared by the method has the advantages of simple technology, quick yield, low cost and superior performance. Dust particle pollutants and gaseous pollutants can be effectively blocked, and the air filtering material which can be recycled after simple treatment is widely used for various indoor air conditioners.
Description
Technical field
The present invention relates to a kind of air filting material and preparation method thereof, relate in particular to a kind of air filtration composite that is used for air-conditioning, particularly relate to a kind of material that can effectively filter airborne grain pollutant, gaseous contaminant simultaneously.
Background technology
Along with popularizing day by day and the extensive use of new decorative material for building in a large number of air-conditioning, cause room air pollution further to be aggravated, it is more outstanding that problem of indoor air quality becomes, The experimental results proves, the health of indoor air quality and human body has confidential relation, wherein serious with VOC gaseous contaminants such as (VOC) especially to the harm of human body, but, in air-conditioning system (comprising the minitype air conditioner unit), do not take measure targetedly at present owing to the purification means that volatile organic matter lacked highly effective.Thereby the air cleaning mode of existing air-conditioning system is incomplete, demands urgently improving.
For this reason, the developmental research of high-efficiency air filtering material and phase preparation obtains people and very payes attention to widely, many patent disclosures technology separately.
As everyone knows, the popularity rate of room conditioning improves year by year, and its used filtering material is the woven filter screen of common plastics mostly, and hole is bigger, only can the bigger grit of elimination.Indoor air cleaner is the another potential market of air filting material.People's 90% time is spent indoor, but room air pollution far is far more than outdoor air possibly, contains smog, mould in the air, spore, bacterium, fiber, grit etc.Removing indoor pollutant with air purifier is a kind of effective method, and the filtering material of air purifier generally is a ultra-fine fibre glass.Air purifier is all very fast in various countries' development, and the annual growth in US Air gas purifier market is more than 10%.The normal air clarifier can't be removed indoor harmful gas, and the composition of these gases is very complicated, only just contains hundreds of gas componants in the cigarette smoke, adds the aldehyde system, the benzene series thing that give out in the finishing material, the CO that various pollution sources distribute, SO
2, NO
x, NH
3Be detrimental to health Deng directly, eliminate this harm and need adopt functional air filtering material.Disclosed patented technology fails to satisfy modern society multi-functional to air filting material, and long timeliness can be used the composite request that price is low repeatedly.
Summary of the invention
The technical issues that need to address of the present invention are to disclose a kind of air filting material and preparation method, to satisfy the problem that contemporary society effectively filters air.
The said air filting material material of the present invention mutually twines two-layer fiber with the composite oxide layer that contains the photochemical catalyst of nano particle by acupuncture by the fusion-jetting polypropylene nonwoven filter course that polarizes and is composited.
Wherein, the fusion-jetting polypropylene non-woven fabrics fiber fineness of said polarization is 1.7～3.3dtex, and fibre length is 35～38cm, and thickness is 0.35～0.6mm;
Term " polarization " refers to: under the effect of high electric current, low-voltage, after air is ionized, imbed under electric charge earth electric field and aerodynamic effect in the fusion-jetting polypropylene non-woven fabrics fiber, formation can forever keep the dielectric that polarizes, be electret, that is the fusion-jetting polypropylene nonwoven is polarized.
The composite oxide layer of the said photochemical catalyst that contains nano particle is the terylene layer that makes two-layer fiber by acupuncture and twine mutually and the needle-punched composite of polypropylene fibre layer, wherein, terylene: polypropylene fibre=25～75, weight ratio, fibre fineness is 1.5～4.2dtex, fibre length is 27～10cm, and thickness is 0.35-0.6mm, and the photochemical catalyst of nano particle is TiO
2, outward appearance is a white, and particle diameter is 6～60nm, and catalyst content is 1～10%, weight.
The preparation method of air filting material of the present invention comprises the steps:
(1) non-polar material polarization preparation:
At first with air ionization under the effect of the corona pin that is added with bias voltage, form ionized air, the fusion-jetting polypropylene nonwoven passes through ionized air then, under the electric field and aerodynamic effect of electric charge, ionized air is carried on the fiber, and formation can forever keep the dielectric that polarizes, i.e. electret.Static value 2000～3500v/cm that polarization is handled;
(2) contain the preparation of composite oxide layer of the photochemical catalyst of nano particle:
With the terylene of winding mutually and the needle-punched composite of polypropylene fibre, impregnated in TiO
2In the mixture of water, with 1～8 meter/minute speed operation, roll through two roll-ins, moisture content is removed, under 75～90 ℃ temperature, dry;
TiO
2In the mixture of water, TiO
2Weight concentration is 15～30%, TiO
2Consumption is 10～20% of a composite, weight;
(3) it is compound the material of step (1) and (2) to be carried out acupuncture, two-layer fiber is twined mutually, and pin speed motor speed is that 700～1000 times/min plants pin, and density is 1500～2500 pieces/m, two layers of material can very gentlely be combined as a whole equably, promptly obtain air filting material of the present invention.
Owing to adopted nano-TiO
2Be photochemical catalyst, can directly use airborne O
2Make oxidant, the catalytic performance height, the reaction condition gentleness can be decomposed into CO with organic pollution
2And H
2Inorganic molecules such as O, clean-up effect is thorough, the catalyst chemical stable in properties, oxidation-reduction quality is strong, and cost is low, does not have the absorption saturated phenomenon, long service life.
Air filting material of the present invention, nano-TiO
2Be evenly distributed on the composite fiber mesh, at O
2Under the effect of light, can effectively purify air and face upward system virus.Through the air after the filter process of material preparation one-tenth of the present invention, not only dust concentration reduces greatly, and the concentration of bacterium and virus also obviously weakens (as Escherichia coli, golden Portugal, white Portugal, brood cell and hail bacterium etc.).
Adopt the air filting material of method preparation of the present invention, technology is simple, and output is fast, and cost is low, and superior performance can effectively stop the dirt particulate pollutant, gaseous contaminant, and can use repeatedly by after the simple process, be widely used on all kinds of indoor air conditioners.
Description of drawings
Fig. 1 is the air filting material structural representation.
The specific embodiment
Referring to Fig. 1, the said air filting material material of the present invention mutually twines two-layer fiber with the composite oxide layer 2 that contains the photochemical catalyst of nano particle by acupuncture by the fusion-jetting polypropylene nonwoven filter course 1 that polarizes and is composited.
Wherein, the fusion-jetting polypropylene non-woven fabrics fiber fineness of said polarization is 1.7～3.3dtex, and fibre length is 35～38cm, and thickness is 0.35～0.6mm;
The composite oxide layer 2 of the said photochemical catalyst that contains nano particle is the terylene layer 3 that makes two-layer fiber by acupuncture and twine mutually and the needle-punched composite of polypropylene fibre layer 4, wherein, terylene: polypropylene fibre=25～75, weight ratio, fibre fineness is 1.5～4.2dtex, fibre length is 27～10cm, and thickness is 0.35-0.6mm, and the photochemical catalyst of nano particle is TiO
2, outward appearance is a white, and particle diameter is 6～60nm, and catalyst content is 1～10%, weight.
According to optimized technical scheme of the present invention, said air filting material is a zigzag, and the height h of sawtooth is 4～200mm, and the width 1 of sawtooth is 2～8mm.
Embodiment 1
(1) non-polar material polarization preparation:
At first with air ionization under the effect of the corona pin that is added with bias voltage 3000v/cm, form ionized air, the fusion-jetting polypropylene nonwoven forms electret by ionized air then.
(2) contain the preparation of composite oxide layer of the photochemical catalyst of nano particle:
With the terylene of winding mutually and the needle-punched composite of polypropylene fibre, impregnated in TiO
2In the mixture of water, with 5 meters/minute speed operation, roll through two roll-ins, moisture content is removed, under 85 ℃ temperature, dry;
TiO
2In the mixture of water, TiO
2Weight concentration is 20%, TiO
2Consumption is 15% of a composite, weight;
(3) it is compound the material of step (1) and (2) to be carried out acupuncture, two-layer fiber is twined mutually, and pin speed motor speed is that 800 times/min plants pin, and density is 2000 pieces/m, two layers of material can very gentlely be combined as a whole equably, promptly obtain air filting material of the present invention.
Wherein, the fusion-jetting polypropylene non-woven fabrics fiber fineness of said polarization is 2dtex, and fibre length is 36cm, and thickness is 0.4 mm;
Wherein, terylene: polypropylene fibre=50, weight ratio, fibre fineness are 3dtex, and fibre length is 15cm, and thickness is 0.4mm, and the photochemical catalyst of nano particle is TiO
2, outward appearance is a white, and particle diameter is 30nm, and catalyst content is 5%, weight.
The height h of sawtooth is 100mm, and the width 1 of sawtooth is 4mm.
Material of the present invention adopts GB15193-1994 " foodsafety toxicology review program and method " and GB/T17409-1998; Disinfection technology standard 1999.11; GB15979-1995; GB6165-85; JE/T22-99; GB/T18204.26-2000; Standards such as GB/T18204.25-2000 detect, and the result is as follows:
1. chmice acute per os toxicity LD50mg/kg, assay＞10000, conclusion: actual nontoxic;
2. acute skin irritation test integral mean value, assay is 0, conclusion is non-stimulated;
3. mutagenesis micronucleus test assay: feminine gender, conclusion feminine gender.
Formaldehyde clearance %:5 minute 85.1,10 minutes 88.2,30 minutes 92.1;
Ammonia clearance %:5 minute 72.4,10 minutes 78.5,30 minutes 87.8;
Acetic acid clearance %:5 minute 58.7,10 minutes 59.3,30 minutes 64.2.
Escherichia coli (8099) and staphylococcus aureus (ATCC6538) there is stronger bacteriostasis.
Filter efficiency is 99.98%.
Claims (7)
1. an air filting material is characterized in that, by acupuncture two-layer fiber is twined with the composite oxide layer that contains the photochemical catalyst of nano particle by the polypropylene non-woven fabric filter course that polarizes mutually and is composited.
2. air filting material according to claim 1, it is characterized in that, the composite oxide layer of the said photochemical catalyst that contains nano particle is the terylene layer that makes two-layer fiber by acupuncture and twine mutually and the needle-punched composite of polypropylene fibre layer, wherein, terylene: polypropylene fibre=25～75, weight ratio.
3. air filting material according to claim 2, it is characterized in that the said composite oxide layer fibre fineness that contains the photochemical catalyst of nano particle is 1.5～4.2dtex, fibre length is 27～10cm, thickness is 0.35-0.6mm, and the photochemical catalyst of nano particle is TiO
2, particle diameter is 6～60nm, catalyst content is 1～10%, weight.
4. air filting material according to claim 1 is characterized in that, the polypropylene non-woven fabric fibre fineness of said polarization is 1.7～3.3dtex, and fibre length is 35～38cm, and thickness is 0.35～0.6mm.
5. the preparation method of air filting material according to claim 1 is characterized in that, comprises the steps:
(1) non-polar material polarization preparation:
At first with air ionization under the effect of the corona pin that is added with bias voltage, form ionized air, polypropylene non-woven fabric is by ionized air, under the electric field and aerodynamic effect of electric charge then, ionized air is carried on the fiber, and formation can forever keep the dielectric that polarizes;
(2) contain the preparation of composite oxide layer of the photochemical catalyst of nano particle:
With the terylene of winding mutually and the needle-punched composite of polypropylene fibre, impregnated in TiO
2In the mixture of water, with 1～8 meter/minute speed operation, roll through two roll-ins, moisture content is removed, under 75～90 ℃ temperature, dry;
(3) it is compound the material of step (1) and (2) to be carried out acupuncture, two-layer fiber is twined mutually, and pin speed motor speed is that 700～1000 times/min plants pin, and density is 1500～2500 pieces/m, two layers of material can very gentlely be combined as a whole equably, promptly obtain air filting material of the present invention.
6. the preparation method of air filting material according to claim 5 is characterized in that, static value 2000～3500v/cm that polarization is handled.
7. the preparation method of air filting material according to claim 5 is characterized in that, TiO
2In the mixture of water, TiO
2Weight concentration is 15～30%, TiO
2Consumption is 10～20% of a composite, weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100167006A CN1320942C (en) | 2004-03-03 | 2004-03-03 | Air filtering material and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100167006A CN1320942C (en) | 2004-03-03 | 2004-03-03 | Air filtering material and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1663666A CN1663666A (en) | 2005-09-07 |
| CN1320942C true CN1320942C (en) | 2007-06-13 |
Family
ID=35035086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100167006A Expired - Fee Related CN1320942C (en) | 2004-03-03 | 2004-03-03 | Air filtering material and its preparation method |
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| CN (1) | CN1320942C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101301549B (en) * | 2007-05-08 | 2011-06-08 | 东丽纤维研究所（中国）有限公司 | Nonwoven cloth filter material and uses thereof |
| CN102120115B (en) * | 2011-01-30 | 2012-04-18 | 王文军 | Automotive air conditioning filtering material and preparation method thereof |
| CN102912557B (en) * | 2012-10-26 | 2015-10-28 | 深圳市中纺滤材无纺布有限公司 | A kind of production method of efficient low-resistance nonwoven fabric |
| CN104815483B (en) * | 2015-04-20 | 2017-03-01 | 上海洁晟环保科技有限公司 | Composite antibacterial air filting material, preparation method and applications |
| CN105544043A (en) * | 2015-07-20 | 2016-05-04 | 秦诗发 | Charged polypropylene gauze air filtering material |
| CN105688513B (en) * | 2016-04-12 | 2017-11-17 | 王铭海 | A kind of filter material for air purification and preparation method thereof |
| CN106367889A (en) * | 2016-10-25 | 2017-02-01 | 上海意东无纺布制造有限公司 | Melt-blow non-woven fabric for purifying automobile air compressor gas |
| EP3312031B1 (en) | 2017-05-05 | 2021-01-06 | Carl Freudenberg KG | Ventilation system in a mobile device and method for operating a ventilation system in a mobile device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187381A (en) * | 1996-02-16 | 1998-07-15 | 三井石油化学工业株式会社 | Electret nonwoven fabric filter material and method of making |
| CN1244134A (en) * | 1997-01-20 | 2000-02-09 | 大金工业株式会社 | Filter medium and air filter unit using the same |
-
2004
- 2004-03-03 CN CNB2004100167006A patent/CN1320942C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1187381A (en) * | 1996-02-16 | 1998-07-15 | 三井石油化学工业株式会社 | Electret nonwoven fabric filter material and method of making |
| CN1244134A (en) * | 1997-01-20 | 2000-02-09 | 大金工业株式会社 | Filter medium and air filter unit using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1663666A (en) | 2005-09-07 |
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Granted publication date: 20070613 |