CN104549136A - Filter medium for air purification, filter element, oronasal mask and preparation method - Google Patents
Filter medium for air purification, filter element, oronasal mask and preparation method Download PDFInfo
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- CN104549136A CN104549136A CN201510046928.8A CN201510046928A CN104549136A CN 104549136 A CN104549136 A CN 104549136A CN 201510046928 A CN201510046928 A CN 201510046928A CN 104549136 A CN104549136 A CN 104549136A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 37
- 238000004887 air purification Methods 0.000 title abstract 2
- 239000000843 powder Substances 0.000 claims abstract description 97
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000002808 molecular sieve Substances 0.000 claims abstract description 33
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 31
- 239000010457 zeolite Substances 0.000 claims abstract description 31
- QANIADJLTJYOFI-UHFFFAOYSA-K aluminum;magnesium;carbonate;hydroxide;hydrate Chemical compound O.[OH-].[Mg+2].[Al+3].[O-]C([O-])=O QANIADJLTJYOFI-UHFFFAOYSA-K 0.000 claims abstract description 27
- 239000003463 adsorbent Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 239000011230 binding agent Substances 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims description 40
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims description 40
- 239000004575 stone Substances 0.000 claims description 29
- 235000013312 flour Nutrition 0.000 claims description 28
- 230000004048 modification Effects 0.000 claims description 26
- 238000012986 modification Methods 0.000 claims description 26
- 239000004113 Sepiolite Substances 0.000 claims description 24
- 229910052624 sepiolite Inorganic materials 0.000 claims description 24
- 235000019355 sepiolite Nutrition 0.000 claims description 23
- 238000000746 purification Methods 0.000 claims description 14
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 11
- 239000004115 Sodium Silicate Substances 0.000 claims description 8
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 8
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 19
- 239000000809 air pollutant Substances 0.000 abstract description 9
- 231100001243 air pollutant Toxicity 0.000 abstract description 9
- 229910052625 palygorskite Inorganic materials 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 9
- 229960000892 attapulgite Drugs 0.000 abstract description 8
- 239000003344 environmental pollutant Substances 0.000 abstract description 6
- 231100000719 pollutant Toxicity 0.000 abstract description 6
- 239000006185 dispersion Substances 0.000 abstract description 5
- 238000005245 sintering Methods 0.000 abstract description 5
- 241000894006 Bacteria Species 0.000 abstract description 4
- 230000006378 damage Effects 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract 1
- 238000003825 pressing Methods 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 32
- 239000002245 particle Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 24
- 239000003795 chemical substances by application Substances 0.000 description 18
- 238000001994 activation Methods 0.000 description 17
- 239000011812 mixed powder Substances 0.000 description 17
- 229920002545 silicone oil Polymers 0.000 description 17
- 238000003756 stirring Methods 0.000 description 17
- 239000012752 auxiliary agent Substances 0.000 description 16
- 238000012856 packing Methods 0.000 description 16
- 238000010521 absorption reaction Methods 0.000 description 15
- 230000004913 activation Effects 0.000 description 14
- 239000000463 material Substances 0.000 description 14
- 239000000126 substance Substances 0.000 description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
- 150000002500 ions Chemical class 0.000 description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 150000001450 anions Chemical class 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 239000002253 acid Substances 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 7
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical group [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 6
- 238000003915 air pollution Methods 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011229 interlayer Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 5
- 229910001701 hydrotalcite Inorganic materials 0.000 description 5
- 229960001545 hydrotalcite Drugs 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000011777 magnesium Substances 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003607 modifier Substances 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 239000004927 clay Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- -1 originates in Jilin Chemical compound 0.000 description 3
- 235000019353 potassium silicate Nutrition 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 229910008051 Si-OH Inorganic materials 0.000 description 2
- 229910006358 Si—OH Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000002156 adsorbate Substances 0.000 description 2
- 229910000272 alkali metal oxide Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000005349 anion exchange Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229960001927 cetylpyridinium chloride Drugs 0.000 description 2
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009830 intercalation Methods 0.000 description 2
- 230000002687 intercalation Effects 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ASRSBXRMOCLKQC-UHFFFAOYSA-N 2-(4-chloro-2-methylphenoxy)-n-methoxyacetamide Chemical compound CONC(=O)COC1=CC=C(Cl)C=C1C ASRSBXRMOCLKQC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 240000008067 Cucumis sativus Species 0.000 description 1
- 235000010799 Cucumis sativus var sativus Nutrition 0.000 description 1
- 101710089042 Demethyl-4-deoxygadusol synthase Proteins 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 206010019280 Heart failures Diseases 0.000 description 1
- 206010022489 Insulin Resistance Diseases 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 206010058467 Lung neoplasm malignant Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 238000005411 Van der Waals force Methods 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000008277 atmospheric particulate matter Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 201000001531 bladder carcinoma Diseases 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000711 cancerogenic effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 231100000315 carcinogenic Toxicity 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
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- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000011964 heteropoly acid Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
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- 201000005202 lung cancer Diseases 0.000 description 1
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- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
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- 239000002184 metal Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 230000035772 mutation Effects 0.000 description 1
- WCVHUIPWSPEOIG-UHFFFAOYSA-N n,n-dimethylheptadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCCN(C)C WCVHUIPWSPEOIG-UHFFFAOYSA-N 0.000 description 1
- 210000002850 nasal mucosa Anatomy 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000011022 opal Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
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- 239000011435 rock Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 208000001072 type 2 diabetes mellitus Diseases 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 208000010570 urinary bladder carcinoma Diseases 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000005335 volcanic glass Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 230000036642 wellbeing Effects 0.000 description 1
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention provides a preparation method of a filter medium for air purification, which comprises the following steps: a) mixing an adsorbent and a binder to obtain a mixture; the adsorbent is selected from one or more of hydrotalcite powder, zeolite powder, attapulgite powder, molecular sieve powder and diatomite; b) pressing, sintering and cooling the mixture obtained in the step a) in a mould. Under the synergistic effect of the raw materials, the prepared filter medium has good treatment effect on air pollutants and high removal rate through the combined action of dispersion force and electrostatic force. Is suitable for purifying air and avoiding the harm of pollutants to human bodies. The filter medium prepared by the invention has high removal rate for particulate matters and bacteria in the air.
Description
Technical field
The present invention relates to a kind of filter medium for purification of air and preparation method thereof, the filter core be made up of this filter medium and oronasal mask.
Background technology
Air pollution (being also called atmosphere pollution), according to the definition of International Organization for standardization (ISO), " air pollution (atmosphere pollution) means usually because mankind's activity or natural process cause Cucumber to enter in air; present enough concentration; reach time enough, and therefore compromises comfortable, the health and wellbeing of human body or the phenomenon of environment ".Air pollution, namely refers to containing one or more pollutants in air, and its amount existed, character and time can hurt the life of the mankind, plant and animal, and infringement property, or the living environment of interfere with comfortable, as the existence of stink.In other words, as long as its amount existed of a certain material, character and time, we just can be called air pollutants enough to the mankind or other biological, the property person of having an impact.
Especially in recent years, people talk " haze " look and become, and atmosphere pollution is classified as carcinogenic factor by research institution of the 2013.10.17 day World Health Organization.Particularly point out, the degree of contact particle and atmosphere pollution is darker, and the risk suffering from lung cancer is larger, and suffers from the risk also corresponding increase of carcinoma of urinary bladder.The epidemiologist in Europe finds: air pollution particle also can increase the risk suffered from a heart complaint.While city sends haze warning, risk that is in hospital in heart failure or death will be made to rise 2% ~ 3%.German researchers finds: the risk that air pollution may make children produce insulin resistance increases, and causes after growing up and easily suffers from diabetes.Recently, Shanghai Atmospheric Particulate Matter prevention emphasis laboratory research confirm: PM0.5 can go directly alveolar depths cause angiocardiopathy, even also may disturb the balance of nerve system of human body.
China expert finds: PM2.5 fine grained affects baby's terateger rate and productive rate morning, thus causes neonate's ratio of defects significantly to rise.Have investigation to show, under pregnant woman is exposed to the high environment of air pollution degree, the probability of the self-closing disease baby given birth to is the twice staying in low stain district pregnant woman.
For above-mentioned pollution, occur on the market by active carbon blending in cotton yarn, non-woven fabrics and make mouth mask or NACF is done interlayer manufacture mouth mask, they are effective to aerochemistry pollutant, heavy metal, but undesirable to PM2.5, PM1.0, PM0.5 effect.And the mouth mask of long periods of wear chemical fiber plus material can make schneiderian membrane become fragile, self resistance declines.
Summary of the invention
In view of this, the technical problem that the present invention solves is to provide a kind of filter medium and preparation method thereof, and this filter medium is high to pollutants in air clearance, can also be high to the clearance of particulate in air and bacterium, and method is simple.Additionally provide the oronasal mask be made up of this filter medium.
The invention provides a kind of preparation method of the filter medium for purification of air, comprise the following steps:
A) by adsorbent and binding agent mixing, mixture is obtained; Described adsorbent is selected from one or more in hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite;
B) mixture of step a) gained is suppressed in a mold, sinters, cooled.
Preferably, described binding agent is selected from one or more in ultra-high molecular weight polyethylene and sodium metasilicate.
Preferably, the weight ratio of described adsorbent and binding agent is 100 ~ 1500:100 ~ 300.
Preferably, described diatomite is modification infusorial earth.
Preferably, described zeolite is modified zeolite.
Preferably, described adsorbent also comprises sepiolite powder.
The invention provides the filter medium for purification of air that above-mentioned preparation method obtains.
The invention provides a kind of filter core, be made up of the filter medium described in the claims.
The invention provides a kind of oronasal mask, comprise the filter medium described in the claims or the filter core described in the claims.
Compared with prior art, the invention provides a kind of preparation method of the filter medium for purification of air, comprise the following steps: a) by adsorbent and binding agent mixing, obtain mixture; Described adsorbent is selected from one or more in hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite; B) mixture of step a) gained is suppressed in a mold, sinters, cooled.The present invention is under the synergy of above-mentioned raw materials, and by the synergy of dispersion force and electrostatic force, make the filter medium for preparing good for the treatment effect of air pollutants, clearance is high.Be applicable to the purification for air, exempt the injury that pollutant produces human body.The filter medium that the present invention prepares is high for the clearance of the particle in air and bacterium.After testing this filter medium to the clearance of formaldehyde in air more than 87.6%, clearance for bacterium is more than 87.6%, and the clearance for PM2.5 in air is more than 92.6%, the clearance of PM1.0 is more than 90.6%, the clearance of PM 0.5 is more than 86.5%.
Detailed description of the invention
The invention provides a kind of preparation method of the filter medium for purification of air, comprise the following steps:
A) by adsorbent and binding agent mixing, mixture is obtained; Described adsorbent is selected from one or more in hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite;
B) mixture of step a) gained is suppressed in a mold, sinters, cooled.
First the present invention by adsorbent and binding agent mixing, obtains mixture.Described adsorbent is selected from one or more in hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite; Be preferably selected from two or more the mixture in hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite; More preferably the mixture of the three kinds or more in hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite is selected from; Most preferably be hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomaceous mixture.In the present invention, described binding agent is preferably selected from one or more in ultra-high molecular weight polyethylene and sodium metasilicate; Be more preferably ultra-high molecular weight polyethylene.In the present invention, the weight ratio of described adsorbent and binding agent is 100 ~ 1500:100 ~ 300.Described hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomaceous mass ratio are preferably 100 ~ 300:100 ~ 300:100 ~ 300:100 ~ 300:100 ~ 300; Be more preferably 120 ~ 270:120 ~ 270:120 ~ 270:120 ~ 270:120 ~ 270; Most preferably be 150 ~ 250:150 ~ 250:150 ~ 250:150 ~ 250:150 ~ 250.
In the present invention, the weight average molecular weight of described ultra-high molecular weight polyethylene is preferably 1,000,000 ~ 7,000,000, is more preferably 2,000,000 ~ 6,000,000, most preferably is 2,500,000 ~ 4,000,000.Preferred particle diameter is 104 μm ~ 124 μm, and preferred particle diameter is 106 μm ~ 120 μm.Ultra-high molecular weight polyethylene can obtain from domestic production producer, as Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be can provide the product of M-I type (molecular weight is 150 ± 500,000), M-II type (molecular weight is 250 ± 500,000), M-III type (molecular weight is 350 ± 500,000), M-IV type (molecular weight is for being greater than 4,000,000) equal-specification.An effect of ultra-high molecular weight polyethylene is bonding and the effect forming filter medium skeleton, because the molecular weight of ultra-high molecular weight polyethylene is large, melt viscosity is very high, can not flow after melting, so utilize ultra-high molecular weight polyethylene to pass through compacting, sinter the filter medium obtained, easily form micropore, the effect of absorbed air pollutant can be played.
Sodium metasilicate is commonly called as sodium silicate, and be a kind of water-soluble silicate, its aqueous solution is commonly called as waterglass, is a kind of ore deposit binder.Its chemical formula is R
2onSiO
2, R in formula
2o is alkali metal oxide, and n is the ratio of silica and alkali metal oxide molal quantity, is called the number that rubs of waterglass.Architectural conventional waterglass is sodium metasilicate (Na
2onSiO
2) the aqueous solution.
In the present invention, diatomite is preferably modification infusorial earth.Diatomite is the remains composition that oxycompound follows high diatom, radiolitid or sponge, a kind of mineral of organic origin, silica type in diatom skeletal is similar to opal or moisture silica, mainly originates in Jilin, Tengchong In Yunnan Province and Shengzhou, Zhejiang Province in China.Diatomite has very strong adsorption capacity and very large adsorption capacity, because have micropore that is a large amount of, ordered arrangement in diatom shell, thus make diatomite have very large specific area, its specific area is 3.1 ~ 60m
2/ g, can absorb the impurity of sole mass 3 ~ 4 times.In addition, diatomaceous surface and internal surface of hole are distributed with a large amount of silicone hydroxyl, and silicone hydroxyl in aqueous dissociation, except H+, makes its particle performance go out certain surface electrical negativity.
Diatomite refers to that diatomite is through ore dressing, removes the impurity such as clay, quartz sand, detrital mineral, and making diatom quality reach more than 92% becomes essence soil.Containing more than 1000 nanometer micropore in diatomite body, be also natural nanomicroporous material, the material exceeding own wt 3 ~ 4 times can be absorbed.Diatomite has very strong adsorption capacity to halogen acetonitrile.In addition, as a kind of nanomicroporous material, diatomite carries the effect also playing pore-creating in filter medium of the present invention and filter core.
The present invention preferably uses the diatomite in powder through modification.The method that the method for described modification is known to the skilled person.Example hydrochloric acid or sulfuric acid activated method; Low temperature or high-temperature roasting activation method; The method of modifying that preferred use US Patent No. 2701240 and Chinese patent CN86106871A record; Can also be organics modifications method, the present invention preferably uses the employing hexadecyl trimethylamine (CTMA) of 200410079630.9 records, cetylpyridinium chloride (CPC) and polyacrylamide to carry out the method for modification to diatomite.The present invention does not limit said method, but preferably adopts above-mentioned 200410079630.9 method of modifying recorded.
Diatomite oxide impurity content after modification reduces, dioxide-containing silica improves, and specific area and pore volume also increase, and are more conducive to adsorbing air pollutants.
In the present invention, preferably employing particle diameter is the modification infusorial earth of 89 μm ~ 124 μm.
Hydrotalcite powder of the present invention is the lamellar compound that a class is made up of positively charged and anion that is interlayer filling negative electrical charge, also known as layered hydroxide.Lamellar compound refer to there is layer structure, a compounds that interlayer ion has interchangeability, some functional guest species are introduced bedding void and laminate distance are strutted thus form layer-pillared compound by the intercalation utilizing lamellar compound theme to have under strong polar molecule effect and the interchangeability of interlayer ion.Hydrotalcite is the novel inorganic functional material that a class has layer structure, and main body laminate chemical composition and its laminate cationic characteristic, laminate charge density or the factor such as anion exchange capacity, supermolecular intercalation structure of LDHs are closely related.In general, as long as metal cation has suitable ionic radius (being more or less the same with the ionic radius 0.072nm of magnesium ion) and charge number, all LDHs laminate can be formed.
The design feature of LDHS is that the anion that its interlayer anion can comprise inorganic ions, organic ion, ion of the same race, heteropoly acid ion and complex with various anion exchanges.Utilize this character of LDHs the kind of modulation interlayer anion can synthesize dissimilar LDHs, and give its different character, thus obtain the new material that a class has difference in functionality.
The present invention preferably adopts the hydrotalcite powder of roasting, and the preparation method of the hydrotalcite powder of described roasting is: get and be crushed to 140 ~ 160 object hydrotalcite powder and cool after 450 DEG C of roasting 3h.The calcined hydrotalcite powder advantages of good adsorption effect obtained.
Hydrotalcite oxide through roasting can be reuptaked the anion in water under certain conditions thus revert to the hydrotalcite of layer structure.The memory effect of this uniqueness makes hydrotalcite can be used as high-efficiency anion adsorbent and apply.High-valence anion easily exchanges and enters hydrotalcite layers, and low price anion is easy to be swapped out and exchange capacity is large.
Zeolite is the general name of moisture polysilicate, its crystalline texture is mainly made up of silicon-oxy tetrahedron, wherein part tetravalence silicon ion is replaced by trivalent silicon ion, cause negative electrical charge superfluous, therefore the ion of alkali metal (or alkaline-earth metal) isoequilibrium electric charge is had in structure, there are vestibule and the duct of certain pore size simultaneously in zeolite framework, determine it and there is the character such as absorption, ion-exchange.In the present invention, zeolite powder is preferably past the zeolite powder of modification, be specially: by clean for natural zeolite washed with de-ionized water, dry, take the zeolite of certain mass, be immersed in certain density modifier, fully stir and be no less than two hours, filter after neutralization, clean by washed with de-ionized water, dry for standby.
In the present invention, modifier can be the HCl of 0.05 ~ 0.3mol/L, the H of 0.01 ~ 0.05mol/L
2sO
4, the NaOH of the NaCl of 0.2 ~ 1.0mol/L, 0.05 ~ 0.25mol/L, or the mixed solution of the HCl of 0.03 ~ 0.15mol/L and the NaCl of 0.2 ~ 1.0mol/L.When modifier is the mixed solution of HCl and NaCl, preferred NaCl is 0.8mol/L, HCl is 0.09mol/L, adopts modifier to be usually preferably no less than 2 hours to the time that zeolite carries out modification, is more preferably no less than 4 hours.
Zeolite of the present invention also can modification in the following ways: natural zeolite being crushed to 5 ~ 80 orders, is hydrochloric acid or the sulfuric acid impregnation process 10 ~ 20h of 4 ~ 10% by concentration, through in sodium carbonate or caustic alkali and after washing, poach 30 ~ 60 minutes; By the Zeolite dehydration after boiling, 350 ~ 580 DEG C of roastings, be then crushed to desired particle size.The present invention preferably adopts the method modification.
Through the zeolite of modification, impurity contained in mineral and DDGS can be removed, in mineral structure, etch abundant hole and vestibule, increase its surface area, thus improve the character such as absorption, ion-exchange of zeolite.The particle diameter of zeolite of the present invention is preferably 44 ~ 124 μm.
In the present invention, molecular sieve is a kind of aluminosilicate of crystal type, has structure and the feature of crystal, and surface is solid skeletal, and the effect of binding molecule can be played in internal cavity.Have duct to be connected to each other between hole, molecule has duct to pass through.Molecular sieve powder is by the physical absorption to the Van der Waals force of material, and there are very strong polarity and Coulomb field in its geode inside, goes out strong adsorption capacity to polar molecule and unsaturated molecule displays.And the pore-size distribution of molecular sieve is very homogeneous, it is inner that the material only having molecular diameter to be less than hole diameter just may enter molecular sieve bug hole.The present invention is also unrestricted with source for the kind of molecular sieve, zeolite molecular sieve in chemical industry as solid absorbent, can be used for gas with liquid dried, depositing, be separated and reclaim, can desorb by material of its absorption, zeolite molecular sieve with after can regenerate.Aperture becomes mesopore molecular sieve between the molecular sieve of 2nm ~ 50nm, aperture is between micropore and macropore, there is huge surface area and three-dimensional open-framework, pore passage structure high-sequential, the single distribution in aperture, aperture size can change in relative broad range, has excellent absorption property and higher heat endurance.Have a wide range of applications in fields such as catalysis, absorption, separation.The aperture of mesoporous molecular sieve is preferably 10nm ~ 50nm, better to the physical and chemical adsorption effect of the lead remained in water.
In the present invention, described attapulgite is monoclinic system, and its desirable chemical formula is for being Mg
5(H
20)
4[Si
4o
10]
2(OH)
2, chemical composition theoretical value is MgO 23.83%, SiO
256.96%, H
2o19.21%; The attapulgite of occurring in nature often has Al
3+, Fe
3+deng isomorphous replacement, be rich in Al
3+, Fe
3+mutation is called aluminium attapulgite and iron attapulgite.As being called for MgO 12.10%, SiO of aluminium attapulgite of Xuyi County of Jiangsu Province Dragon King mountain products
258.38%, Al
2o
39.5%, CaO 0.4%, TiO
20.56%, MnO 0.05%, Fe
2o
3+ FeO 5.26%, Na
2o 1.1%, K
2o 1.24%.Because attapulgite is similar to the major path of zeolite powder in the structure, therefore there is good absorption and decoloration performance, have good absorption property to the organic and hydrogen sulfide decomposed etc., SiO in the absorption property of concave convex rod stone flour and mineral
2content relevant, content more high absorption capacity is stronger.
In the present invention, preferably to concave convex rod stone flour through acid activation.The method of acid activation preferably includes sulfuric acid process, hydrochloric acid method, sulfuric acid-mixed in hydrochloric acid method.The present invention preferably uses the concave convex rod stone flour of hydrochloric acid activation modification, more preferably request for utilization number be 90105849.1 Chinese invention patent application disclose a kind of acid soak activating process of concave convex rod stone flour, comprising the volume of fritter is 0.5 ~ 100cm
3attapulgite silty clay soil raw ore, soak 2 ~ 100 hours with the inorganic acid solution (as sulfuric acid, hydrochloric acid solution etc.) that concentration is 1 ~ 15wt%, filter extruding in flakes, at 280 DEG C ~ 350 DEG C, activate 30 ~ 50 minutes with revolving drier, the decolorizing ability being ground into 50 μm ~ 100 μm is the active attapulgite stone flour of 250 ± 5.The present invention also can use the concave convex rod stone flour of phosphoric acid modification.
In the present invention, preferably, the particle diameter of concave convex rod stone flour after acid activation process is 74 μm ~ 104 μm, is more preferably 80 μm ~ 100 μm.The concave convex rod stone flour of acid activation process has larger specific area, and for multiple suction types such as the absorption of uranium outer surface, colloid absorption and its inner surfaces of pores absorption, adsorption capacity is stronger.
In the present invention, by under the synergy of one or more in above-mentioned hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite and above-mentioned binding agent, by the synergy of dispersion force and electrostatic force, make the filter medium for preparing good for the treatment effect of air pollutants, clearance is high.
In the present invention, described adsorbent preferably also comprises sepiolite powder.In the present invention, sepiolite be a kind of tool layer chain structure containing Shuifu County's magnesium silicate clay mineral.Orthorhombic system or monoclinic system are general in bulk, earthy or fibrous agrregate.Sepiolite is divided into hot-liquid type sepiolite and appositional pattern sepiolite two type according to the reason of stroke, is commonly referred to α-sepiolite and β sepiolite.Hot-liquid type sepiolite is formed by hydrothermal solution direct crystallization or by volcanic glass, form through low temperature hot liquid alteration containing the mineral of magnesium, often originates in the dolomitic limestone of rich magnesium, dolomitic marble stone; Normal and the carbonate of appositional pattern sepiolite deposit, clay rock symbiosis, generated by diagenesis.Hot-liquid type sepiolite is fibre bundle shape, magnesia and dioxide-containing silica high, alumina content is low, is Mg-rich sepiolite; Appositional pattern sepiolite is argillaceous, but appoints under the microscope so in threadiness, and alumina content is high, Mg and dioxide-containing silica low, be rich meerschalminite.
Sepiolite has large specific area and pore volume, there are the passage and hole that run through total, and sepiolite surface exists three class activated centres: the oxygen atom in (1) silicon-oxy tetrahedron layer, oxygen atom provides weak electric charge thus carries out the absorption to adsorbate; (2) at the hydrone of edge and magnesium ion coordination, hydrogen bond can be formed with adsorbate; (3) at tetrahedral faces, Si-o-Si bond fission and the Si-OH ion cluster produced, carried out the electric charge of compensate for residual by a proton or polyhydroxylated molecule, these ion clusters are along fiber axis with the distribution of the spacing of 5 dusts, and its quantity depends on the size of fiber and the scarce cave of crystal.These Si-OH ion clusters with the interaction of molecules be attracted on sepiolite outer surface, can also form covalent bond with some organic reagent.These activated centres make the absorption property of sepiolite fine, comprise the organic compound adsorbing nonpolar or low pole.
In the present invention, preferably use particle diameter is the sepiolite powder of 18 ~ 150 μm, more preferably uses 18 ~ 100 μm.The sepiolite powder specific area that wherein particle diameter is little is large, more easily plays suction-operated.
The present invention preferably by described sepiolite powder activation process, more preferably through acid activation.Be specially: working concentration be 0.1 ~ 20% sulfuric acid be 20 ~ 100 DEG C of immersion treatment 1 ~ 15h in temperature.
In the present invention, the mass ratio of hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite and sepiolite powder is preferably 100 ~ 300:100 ~ 300:100 ~ 300:100 ~ 300:100 ~ 300:100 ~ 300; Be more preferably 120 ~ 270:120 ~ 270:120 ~ 270:120 ~ 270:120 ~ 270:120 ~ 270; Most preferably be 150 ~ 250:150 ~ 250:150 ~ 250:150 ~ 250:150 ~ 250:120 ~ 250.
In the present invention, the mass ratio of described ultra-high molecular weight polyethylene and sodium metasilicate is preferably 100 ~ 300:100 ~ 300, is more preferably 120 ~ 250:120 ~ 250.
In the present invention, by under the synergy of one or more in above-mentioned hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite and above-mentioned binding agent, by the synergy of dispersion force and electrostatic force, make the filter medium for preparing good for the treatment effect of air pollutants, clearance is high.And the acting in conjunction of above-mentioned raw materials and sepiolite powder makes the filter medium for preparing better for the treatment effect of air pollutants, clearance is higher.
In the present invention, the source of above-mentioned raw materials and purity are not particularly limited, preferably commercially available.
The present invention for step in above-mentioned preparation method a) in several raw materials used carried out comparatively detailed description, under the collaborative adduction of this several raw material, the harmful substance in air can fully be adsorbed.
In the present invention, for the mixing of above-mentioned raw materials without any restriction, can be any low sheraing blender or agitator that significantly can not change diameter of particle and size distribution, can be preferably the agitator, drum-type blender, spiral agitator etc. of blunt impeller blade.Rotating speed for above-mentioned mixer and agitator depending on the type of blender, will not limit this, preferably avoids dust of kicking up.
After above-mentioned raw materials is mixed, the mixture of step a) gained is suppressed in a mold, sinters, cooled.
Be specially, be filled into by mixed powder in pre-designed mould, by pressurization by its compacting, pressure is preferably not more than 2MPa, is more preferably 0.5 ~ 1.5MPa, and adapts with the material of mould therefor; Mould can by aluminium, cast iron, steel or any material manufacture bearing relevant pressure and temperature suitably.In mould inner surface release agent application, can select silicone oil or any other the commercially available releasing agent be adsorbed onto hardly on filter medium, also can use processing release paper.Sintering temperature is 200 DEG C ~ 300 DEG C, and sintering time is 120 minutes ~ 150 minutes, is cooled to 40 DEG C ~ 60 DEG C demouldings after sintering.In this manufacturing process, after inventor's test many times, draw the filter medium produced in 200 DEG C ~ 300 DEG C in sintering range, filter effect is better.
The invention provides the filter medium for purification of air that above-mentioned preparation method obtains.
The invention provides a kind of filter core, be made up of the filter medium described in the claims.
The present invention does not limit for the shape of above-mentioned filter core, can have any shape; Preferably by aperture on filter core, the present invention does not also limit for the form in aperture and size, and be preferably circular aperture, pore size is preferably 0.2 ~ 0.8mm.
The invention provides a kind of oronasal mask, comprise the filter medium described in the claims or the filter core described in the claims.The present invention does not limit for all the other making materials of above-mentioned oronasal mask, and all the other of preparation oronasal mask well known to those skilled in the art make material and assemblies.The present invention does not also limit for the shape of above-mentioned oronasal mask and specification, can be any shape.The present invention does not also limit for the configuration of surface of above-mentioned oronasal mask.
The present invention is under the synergy of above-mentioned raw materials, and by the synergy of dispersion force and electrostatic force, make the filter medium for preparing good for the treatment effect of air pollutants, clearance is high.Be applicable to the purification for air, exempt the injury that pollutant produces human body.Avoid the effect of feeling oppressed stopping and breathe simultaneously.
In order to further illustrate the present invention, below in conjunction with embodiment, the filter medium for purification of air provided by the invention is described in detail.
Embodiment 1
(1) take ultra-high molecular weight polyethylene powder 100g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) the hydrotalcite powder 150g of roasting is taken;
(3) above-mentioned two kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(4) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(5) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 2
(1) take ultra-high molecular weight polyethylene powder 100g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) modified zeolite powder 150g is taken;
(3) above-mentioned two kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(4) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(5) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 3
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) hydrochloric acid activation concave convex rod stone flour 150g is taken;
(3) above-mentioned two kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(4) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(5) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 4
(1) take ultra-high molecular weight polyethylene powder 300g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) modification infusorial earth powder 150g is taken;
(3) above-mentioned two kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(4) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(5) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 5
(1) sodium silicate 100g is taken;
(2) molecular sieve powder 150g is taken;
(3) above-mentioned two kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(4) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(5) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 6
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) the hydrotalcite powder 150g of roasting is taken;
(3) molecular sieve powder 150g is taken;
(4) above-mentioned three kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(5) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(6) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 7
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) modified zeolite powder 150g is taken;
(3) hydrochloric acid activation concave convex rod stone flour 150g is taken;
(4) above-mentioned three kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(5) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(6) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 8
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) modification infusorial earth powder 150g is taken;
(3) molecular sieve powder 150g is taken;
(4) above-mentioned three kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(5) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(6) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 9
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) the hydrotalcite powder 150g of roasting is taken;
(3) modification infusorial earth powder 150g is taken;
(4) molecular sieve powder 150g is taken;
(5) above-mentioned four kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(6) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(7) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 10
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) the hydrotalcite powder 150g of roasting is taken;
(3) modified zeolite powder 150g is taken;
(4) hydrochloric acid activation concave convex rod stone flour 150g is taken;
(5) above-mentioned four kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(6) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(7) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 11
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) modification infusorial earth powder 150g is taken;
(3) molecular sieve powder 150g is taken;
(4) hydrochloric acid activation concave convex rod stone flour 150g is taken;
(5) above-mentioned four kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(6) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(7) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 12
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) the hydrotalcite powder 150g of roasting is taken;
(3) modification infusorial earth powder 150g is taken;
(4) molecular sieve powder 150g is taken;
(5) modified zeolite powder 150g is taken;
(6) above-mentioned five kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(7) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(8) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 13
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) the hydrotalcite powder 150g of roasting is taken;
(3) modified zeolite powder 150g is taken;
(4) hydrochloric acid activation concave convex rod stone flour 150g is taken;
(5) molecular sieve powder 150g is taken;
(6) above-mentioned five kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(7) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(8) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 14
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) the hydrotalcite powder 150g of roasting is taken;
(3) modification infusorial earth powder 150g is taken;
(4) molecular sieve powder 150g is taken;
(5) hydrochloric acid activation concave convex rod stone flour 150g is taken;
(6) above-mentioned five kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(7) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(8) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 15
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) the hydrotalcite powder 150g of roasting is taken;
(3) modification infusorial earth powder 150g is taken;
(4) molecular sieve powder 150g is taken;
(5) hydrochloric acid activation concave convex rod stone flour 150g is taken;
(6) modified zeolite powder 150g is taken;
(7) above-mentioned six kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(8) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(9) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 16
(1) take ultra-high molecular weight polyethylene powder 200g, particle diameter is 110 μm, and described ultra-high molecular weight polyethylene is the M-I type product of Second Factory of Auxiliary Agent of Orient Petrochemical Industry Co., Ltd., Be, and its molecular weight is 1,500,000;
(2) the hydrotalcite powder 150g of roasting is taken;
(3) modification infusorial earth powder 150g is taken;
(4) molecular sieve powder 150g is taken;
(5) hydrochloric acid activation concave convex rod stone flour 150g is taken;
(6) modified zeolite powder 150g is taken;
(7) acid activation sepiolite powder 150g is taken;
(8) above-mentioned seven kinds of powder are put into mechanical agitator stirring to mix for 10 minutes;
(9) mixed powder packing is entered in tubular die, suppress under the hydraulic pressure of 0.7MPa, at 230 DEG C of temperature, sinter 90 minutes;
(10) naturally cool to 50 DEG C and then use the demoulding of silicone oil releasing agent, obtain filter core.
The length of the filter core of preparation is 70mm, and width is 25mm, and thickness is 50mm.
Embodiment 17
The filter core of Example 1 ~ 16 gained, for purification of air process.Following methods is adopted to carry out actual effect test, be specifically as follows 1) in the test of PM2.5, sample is placed in 30 cubic metres of test chambers, take smoke from cigarette as dirt source, Cabin contamination thing initial concentration is controlled within the scope of (5.0 ± 1.0) mg/ cubic meter, be opened to maximum windscreen by sample product, by the test of 20 minutes, draw the purification efficiency of sample;
2) the degerming rate of GB21551.3-2010 to filter core of the present invention is adopted to measure;
3) WS/T 206 light scattering method is adopted to measure filter element filtering particle of the present invention;
Result is as shown in table 1, table 2 and table 3, and the filter core provided for adopting the embodiment of the present invention 1 ~ 16 is to the content of the harmful substance before and after air-treatment.
Table 1 uses formaldehyde in air content before and after filter core process, unit: mg/m
3
Table 2 to use before and after filter core process bacterial content in air, unit: CFU/m
3
Table 3 to use before and after filter core process harmful substance contents in air, unit: μ g/m
3
Above filter medium for removing harmful substance in air provided by the present invention and preparation method thereof and the filter core that is made up of this filter medium are described in detail.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. for a preparation method for the filter medium of purification of air, it is characterized in that, comprise the following steps:
A) by adsorbent and binding agent mixing, mixture is obtained; Described adsorbent is selected from one or more in hydrotalcite powder, zeolite powder, concave convex rod stone flour, molecular sieve powder, diatomite;
B) mixture of step a) gained is suppressed in a mold, sinters, cooled.
2. preparation method according to claim 1, is characterized in that, described binding agent is selected from one or more in ultra-high molecular weight polyethylene and sodium metasilicate.
3. preparation method according to claim 1, is characterized in that, the weight ratio of described adsorbent and binding agent is 100 ~ 1500:100 ~ 300.
4. preparation method according to claim 1, is characterized in that, described diatomite is modification infusorial earth.
5. preparation method according to claim 1, is characterized in that, described zeolite is modified zeolite.
6. preparation method according to claim 1, is characterized in that, described adsorbent also comprises sepiolite powder.
7. the filter medium for purification of air that obtains of preparation method according to any one of claim 1 to 6.
8. a filter core, is characterized in that, is made up of filter medium according to claim 7.
9. an oronasal mask, is characterized in that, comprises filter medium according to claim 7 or filter core according to claim 8.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826580A (en) * | 2015-05-22 | 2015-08-12 | 魏健 | Compound multi-functional diatom pure air purification particles and preparation method thereof |
| CN106042245A (en) * | 2016-06-28 | 2016-10-26 | 广州市康水科技有限责任公司 | Preparation method of material composition for effectively relieving noise pollution |
| CN107006920A (en) * | 2017-03-27 | 2017-08-04 | 深圳市九明药业有限公司 | A kind of multi-layer structure design filtration efficiency absorption mouth mask and preparation method thereof |
| CN107261649A (en) * | 2017-07-19 | 2017-10-20 | 安徽三品技术服务有限公司 | Water warfare ceramic element and preparation method containing chitin modified concave convex rod |
| CN107715833A (en) * | 2017-12-05 | 2018-02-23 | 广州尊卓环保科技有限公司 | Spherical filtrate, filter cartridge, oronasal mask and the preparation method of denitrification |
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| CN107921352A (en) * | 2015-08-06 | 2018-04-17 | 3M创新有限公司 | Filter medium for respiratory protection |
| CN108126470A (en) * | 2016-11-30 | 2018-06-08 | 缑泽明 | A kind of sheet-type absorption filter element and its preparation facilities and method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1283517A (en) * | 2000-06-25 | 2001-02-14 | 宁波绿色医疗设备有限公司 | Process for preparing effecient granular adsorbent to adsorb anesthetic gas |
| DE10153422A1 (en) * | 2001-11-03 | 2002-10-10 | Manfred Baumgaertner | Emergency mask, used for protecting user against attacks with biological and chemical weapons, is made from elastic air-tight transparent plastic material which can be pulled over head |
| US7300899B2 (en) * | 2002-01-22 | 2007-11-27 | Zeochem, Llc | Lithium exchanged zeolite X adsorbent blends |
| CN101380565A (en) * | 2008-10-10 | 2009-03-11 | 上海恒业化工有限公司 | Active molecular sieve absorbent and preparation method thereof |
| CN101391109A (en) * | 2008-11-03 | 2009-03-25 | 赵溶 | Preparation method of compound air purification agent |
| CN201248380Y (en) * | 2008-05-09 | 2009-06-03 | 东莞市宇洁新材料有限公司 | Mask for proofing dust haze and ozone |
| CN101992078A (en) * | 2009-08-18 | 2011-03-30 | 周奇迪 | Filter medium for removing estrogen medicine from water and preparation method thereof |
| CN104307487A (en) * | 2014-09-19 | 2015-01-28 | 明光瑞泰工业有限公司 | Air purifying agent capable of effective adsorption of formaldehyde |
-
2015
- 2015-01-29 CN CN201510046928.8A patent/CN104549136A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1283517A (en) * | 2000-06-25 | 2001-02-14 | 宁波绿色医疗设备有限公司 | Process for preparing effecient granular adsorbent to adsorb anesthetic gas |
| DE10153422A1 (en) * | 2001-11-03 | 2002-10-10 | Manfred Baumgaertner | Emergency mask, used for protecting user against attacks with biological and chemical weapons, is made from elastic air-tight transparent plastic material which can be pulled over head |
| US7300899B2 (en) * | 2002-01-22 | 2007-11-27 | Zeochem, Llc | Lithium exchanged zeolite X adsorbent blends |
| CN201248380Y (en) * | 2008-05-09 | 2009-06-03 | 东莞市宇洁新材料有限公司 | Mask for proofing dust haze and ozone |
| CN101380565A (en) * | 2008-10-10 | 2009-03-11 | 上海恒业化工有限公司 | Active molecular sieve absorbent and preparation method thereof |
| CN101391109A (en) * | 2008-11-03 | 2009-03-25 | 赵溶 | Preparation method of compound air purification agent |
| CN101992078A (en) * | 2009-08-18 | 2011-03-30 | 周奇迪 | Filter medium for removing estrogen medicine from water and preparation method thereof |
| CN104307487A (en) * | 2014-09-19 | 2015-01-28 | 明光瑞泰工业有限公司 | Air purifying agent capable of effective adsorption of formaldehyde |
Non-Patent Citations (1)
| Title |
|---|
| 宋广生等: "室内环境污染物与净化原理", 《室内环境污染控制与治理技术》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104826580A (en) * | 2015-05-22 | 2015-08-12 | 魏健 | Compound multi-functional diatom pure air purification particles and preparation method thereof |
| CN107921352A (en) * | 2015-08-06 | 2018-04-17 | 3M创新有限公司 | Filter medium for respiratory protection |
| CN106042245A (en) * | 2016-06-28 | 2016-10-26 | 广州市康水科技有限责任公司 | Preparation method of material composition for effectively relieving noise pollution |
| CN108126470A (en) * | 2016-11-30 | 2018-06-08 | 缑泽明 | A kind of sheet-type absorption filter element and its preparation facilities and method |
| CN107006920A (en) * | 2017-03-27 | 2017-08-04 | 深圳市九明药业有限公司 | A kind of multi-layer structure design filtration efficiency absorption mouth mask and preparation method thereof |
| CN107261649A (en) * | 2017-07-19 | 2017-10-20 | 安徽三品技术服务有限公司 | Water warfare ceramic element and preparation method containing chitin modified concave convex rod |
| CN107715833A (en) * | 2017-12-05 | 2018-02-23 | 广州尊卓环保科技有限公司 | Spherical filtrate, filter cartridge, oronasal mask and the preparation method of denitrification |
| CN107754762A (en) * | 2017-12-05 | 2018-03-06 | 广州尊卓环保科技有限公司 | Spherical filtrate, filter cartridge, oronasal mask and preparation method for haze |
| CN107803183A (en) * | 2017-12-09 | 2018-03-16 | 广州尊卓环保科技有限公司 | Preparation method except the spherical filtrate of sulfur dioxide and the oronasal mask using the filtrate |
| CN108212076A (en) * | 2018-02-27 | 2018-06-29 | 广州尊卓环保科技有限公司 | The preparation method of the spherical filtrate of anti-fine particle and the oronasal mask using the filtrate |
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