CN103706186B - Filter material for air purification and preparation method thereof - Google Patents
Filter material for air purification and preparation method thereof Download PDFInfo
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- CN103706186B CN103706186B CN201310729037.3A CN201310729037A CN103706186B CN 103706186 B CN103706186 B CN 103706186B CN 201310729037 A CN201310729037 A CN 201310729037A CN 103706186 B CN103706186 B CN 103706186B
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Abstract
The invention relates to a filter material for air purification and a preparation method thereof. The filter material is of a multi-layer composite structure and formed by a center layer, a middle polyester fiber mat layer and an outer stainless steel retainer layer, wherein the middle polyester fiber mat layer and the outer stainless steel retainer layer are symmetrically arranged; the thickness of the center layer is 15-50mm; the center layer is formed by a nano polyacrylonitrile (PAN) fiber non-woven layer coated by nano active carbon particles; the diameter of the nano PAN fiber is 150-200nm; the diameters of the nano active carbon particles are 30-50nm; the thickness of the middle polyester fiber mat layer is 10-25mm; the outer stainless steel retainer layer is a protective layer; five layers of materials are fixed by a bolt after being pressed. The filter material disclosed by the invention can be used for adsorbing fine particles which have great risks on a human body, and are 1.5-5 microns in particle size, the filtering efficiency is over 98%, and the filter material is applied to an air filter core in an indoor air purifier.
Description
Technical field
The present invention relates to a kind of composite filter material and preparation method thereof, specifically a kind of filter material for air purification and preparation method thereof.
Background technology
Along with environmental pollution is day by day serious, add the pollution of many interior decorations and ornament materials, air quality has caused the extensive concern of society.The disease of the mankind 68% is relevant with air pollution; The World Health Organization is classified as room air pollution first of 18 class carcinogens.Deleterious particle thing in air refers generally to MP2.5(solid particulate matter particle diameter at 2.5 microns) and more tiny particle, and traditional filtering material is difficult to this kind of particle filtering.Therefore a kind of MP2.5 and more tiny filtering material of can filtering solves air-polluting key point.Material for air purification conventional at present uses a large amount of active carbons mostly, rely on the adsorptivity of active carbon to adsorb these solid particulate matters and poisonous gas molecule, but adopt separately active carbon not to be fairly obvious for the particle effect of absorption submicron order.
Summary of the invention
Technical problem to be solved by this invention overcomes above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, preparation technology simple, filter material for air purification of good filtration effect and preparation method thereof.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of filter material for air purification, it is characterized in that: it is multi-layer compound structure, be made up of central core and symmetrically arranged polyster fibre felt intermediate layer, stainless steel protecting wire net skin, described central core thickness is 15-50mm, it is made up of nano polypropylene nitrile (PAN) fabric nonwoven cloth stacked the adding through active carbon nanoparticles particle coating, nanometer PAN fibre diameter is wherein 150-200 nanometer, and active carbon nanoparticles particle diameter is 30-50nm; Polyster fibre felt intermediate layer thickness 10-25mm, stainless steel protecting wire net skin is protective layer, and five layer materials are bolted after compressing.
Further, the thickness of described individual layer nano polypropylene nitrile fabric nonwoven cloth is 3-5mm, every square meter individual layer nano polypropylene nitrile fabric nonwoven cloth is coated with 35-45g active carbon, and 5-10 layer described nano polypropylene nitrile fabric nonwoven cloth stacks up and forms nano polypropylene nitrile fabric nonwoven cloth central core.
The preparation method of the above-mentioned filter material for air purification of the present invention, it comprises the following steps: first prepare nano polypropylene nitrile fabric nonwoven cloth central core, polyacrylonitrile particle is dissolved in N-N dimethyl formamide (DMF), be made into the polyacrylonitrile solution that mass percent is 12-16%, and then the polyacrylonitrile solution prepared is injected in multi-nozzle electrospinning device, prepare uniform white nano polypropylene nitrile fabric nonwoven cloth, polyacrylonitrile fibre diameter 150-200nm wherein, the thickness of one deck polyacrylonitrile fibre non-woven fabrics is 3-5mm; Then the nano fiber non-woven fabric prepared is cut into sheet material; By active carbon nanoparticles Granular composite in polyvinyl alcohol water solution, the diameter of described active carbon nanoparticles particle is 30-50nm, and in solution, polyvinyl alcohol mass content is 2%, and all the other are water, is sprayed onto nano polypropylene nitrile fabric nonwoven cloth surface after atomization.Active carbon coated weight is: every square meter thickness is that the individual layer nano polypropylene nitrile fabric nonwoven cloth of 3-5mm is coated with 35-45g active carbon.5-10 layer described nano polypropylene nitrile fabric nonwoven cloth stacks up and forms nano polypropylene nitrile fabric nonwoven cloth central core.
Second step: prepare polyster fibre felt intermediate layer and adopt fibre diameter 8-22 μm of polyster fibre, intermediate layer thickness is 10-25mm, cuts into sheet material; Coarse filtration effect is played in polyster fibre felt intermediate layer, to be used in filtered air the dust of 10 μm and above larger particles.
3rd step: what prepare the employing of stainless steel protecting wire net skin is 26-50 order 304 stainless steel cloth, and steel wire diameter is at 0.05-0.3mm.
4th step: the nano polypropylene nitrile fiber non-woven being coated with nano active carbon prepared is arranged between two-layer polyster fibre felt by the assembling of filtering material; Again the stainless steel sheath cut out is placed in polyster fibre felt both sides, five layer materials are fixed with bolt after compressing on four angles.
Polyacrylonitrile (PAN) nano non-woven fabric that the present invention is prepared by method of electrostatic spinning, nano polypropylene nitrile fabric nonwoven cloth surface coated with nano activated carbon granule, be close to the polyster fibre felt intermediate layer that central core both sides have been coarse filtration effect, in polyster fibre felt, the skin in intermediate layer is stainless steel protecting wire net, five layer materials are bolted after compressing, centre does not need bonding, is therefore convenient to dismounting, cleaning and changes.After the nano polypropylene nitrile fabric nonwoven cloth central core applied through nano active carbon and polyster fibre felt combine, as indoor air filter material for core, central core is adsorbable has the fine grained of the particle diameter of larger harm between 1.5-5 μm to human body.There is the features such as filter efficiency is high, preparation technology is simple, air drag is little.
Accompanying drawing explanation
Fig. 1 is that the present invention forms structural representation.
In figure: 1. stainless steel protecting wire net is outer, 2. polyster fibre felt intermediate layer, 3. central core.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention will be further described.
A kind of filter material for air purification, it is multi-layer compound structure, be made up of central core 3 and symmetrically arranged polyster fibre felt intermediate layer 2, stainless steel protecting wire net skin 1, described central core thickness is 15-50mm, it is made up of nano polypropylene nitrile (PAN) fabric nonwoven cloth stacked the adding through active carbon nanoparticles particle coating, nanometer PAN fibre diameter is wherein 150-200 nanometer, active carbon nanoparticles particle diameter is 30-50nm, and central core can be used for absorption has the fine grained of the particle diameter of larger harm between 1.5-5 μm to human body.Polyster fibre felt intermediate layer thickness 10-25mm, it to be used in filtered air the dust of 10 μm and above larger particles; Stainless steel protecting wire net skin is protective layer, plays a protective role.Five layer materials are bolted after compressing.
Further, the thickness of described individual layer nano polypropylene nitrile fabric nonwoven cloth is 3-5mm, every square meter individual layer nano polypropylene nitrile fabric nonwoven cloth is coated with 35-45g active carbon, and 5-10 layer described nano polypropylene nitrile fabric nonwoven cloth stacks up and forms nano polypropylene nitrile fabric nonwoven cloth central core.
The preparation method of the above-mentioned filter material for air purification of the present invention, it comprises the following steps: first prepare nano polypropylene nitrile fabric nonwoven cloth central core, polyacrylonitrile particle is dissolved in N-N dimethyl formamide (DMF), be made into the polyacrylonitrile solution that mass percent is 12-16%, and then the polyacrylonitrile solution prepared is injected in multi-nozzle electrospinning device, adjustment magnitude of voltage 22kV, uniform white nano polypropylene nitrile fabric nonwoven cloth within continuous spinning 4-6 hour, can be prepared, polyacrylonitrile fibre diameter 150-200nm.Nano polypropylene nitrile fabric nonwoven cloth can be prepared in a large number for subsequent use.The thickness of one deck polyacrylonitrile fibre non-woven fabrics is 3-5mm; Then the nano fiber non-woven fabric prepared is cut into sheet material; By active carbon nanoparticles Granular composite in polyvinyl alcohol water solution, the diameter of described active carbon nanoparticles particle is 30-50nm, in solution, polyvinyl alcohol mass content is 2%, active carbon 15%, all the other are water, be sprayed onto nano fiber non-woven fabric surface after atomization, wherein active carbon coated weight is every square meter nano polypropylene nitrile fabric nonwoven cloth coating 35-45g
.the described nano fiber non-woven fabric of 5-10 layer stacks up and forms nano polypropylene nitrile fabric nonwoven cloth central core.
Second step: prepare polyster fibre felt intermediate layer and adopt fibre diameter 8-22 μm of polyster fibre, intermediate layer thickness is 10-25mm, cuts into sheet material; Coarse filtration effect is played in polyster fibre felt intermediate layer, to be used in filtered air the dust of 10 μm and above larger particles.
3rd step: what prepare the employing of stainless steel protecting wire net skin is 26-50 order 304 stainless steel cloth, and steel wire diameter is at 0.05-0.3mm.
4th step: the nano polypropylene nitrile fiber non-woven being coated with nano active carbon prepared is arranged between two-layer polyster fibre felt by the assembling of filtering material; Again the stainless steel sheath cut out is placed in polyster fibre felt both sides, five layer materials are fixed with bolt after compressing on four angles.
Central core 3 of the present invention, polyster fibre felt intermediate layer 2, stainless steel protecting wire net skin 1 can be processed as square, also can be rectangle.Described nano polypropylene nitrile fabric nonwoven cloth, polyster fibre felt intermediate layer cut into sheet material, and its size can be: 100 × 100mm.
Polyacrylonitrile (PAN) nano non-woven fabric that the present invention is prepared by method of electrostatic spinning, nano polypropylene nitrile fabric nonwoven cloth surface coated with nano activated carbon granule, be close to the polyster fibre felt intermediate layer that central core both sides have been coarse filtration effect, in polyster fibre felt, the skin in intermediate layer is stainless steel protecting wire net, five layer materials are bolted after compressing, centre does not need bonding, is therefore convenient to dismounting, cleaning and changes.After the nano polypropylene nitrile fabric nonwoven cloth central core applied through nano active carbon and polyster fibre felt combine, as indoor air filter material for core, central core is adsorbable has the fine grained of the particle diameter of larger harm between 1.5-5 μm to human body.There is the features such as filter efficiency is high, preparation technology is simple, air drag is little.
Embodiment 1:
A kind of filter material for air purification; it is multi-layer compound structure; be made up of central core and symmetrically arranged polyster fibre felt intermediate layer, stainless steel protecting wire net skin; described central core thickness is 15mm; it is made up of nano polypropylene nitrile (PAN) fabric nonwoven cloth stacked the adding through active carbon nanoparticles particle coating; nanometer PAN fibre diameter is wherein 150-200 nanometer; active carbon nanoparticles particle diameter is 30nm; polyster fibre felt intermediate layer thickness 10mm; stainless steel protecting wire net skin is protective layer, and five layer materials are bolted after compressing.The thickness of described individual layer nano polypropylene nitrile fabric nonwoven cloth is 3mm, every square meter individual layer nano polypropylene nitrile fabric nonwoven cloth is coated with 35-45g active carbon, and 5 layers of described nano polypropylene nitrile fabric nonwoven cloth stack up and form nano polypropylene nitrile fabric nonwoven cloth central core.
The preparation method of the above-mentioned filter material for air purification of the present invention, it comprises the following steps: first prepare nano polypropylene nitrile fabric nonwoven cloth central core, polyacrylonitrile particle is dissolved in N-N dimethyl formamide (DMF), be made into the polyacrylonitrile solution that mass percent is 12%, and then the polyacrylonitrile solution prepared is injected in multi-nozzle electrospinning device, prepare uniform white nano polypropylene nitrile fabric nonwoven cloth, polyacrylonitrile fibre diameter 150-200nm wherein, the thickness of one deck polyacrylonitrile fibre non-woven fabrics is 3mm; Then the nano fiber non-woven fabric prepared is cut into sheet material, it is of a size of: 100 × 100mm; By active carbon nanoparticles Granular composite in polyvinyl alcohol water solution, the diameter of described active carbon nanoparticles particle is 30nm, and in solution, polyvinyl alcohol mass content is 2%, and all the other are water, is sprayed onto nano fiber non-woven fabric surface after atomization.Wherein active carbon coated weight is every square meter polyacrylonitrile nano non-woven fabrics coating 35-45g, and 5 layers of described nano fiber non-woven fabric stack up and form nano polypropylene nitrile fabric nonwoven cloth central core.
Second step: prepare polyster fibre felt intermediate layer and adopt fibre diameter 8 μm of polyster fibres, intermediate layer thickness is 10mm, cuts into sheet material, and it is of a size of: 100 × 100mm; Play coarse filtration effect, to be used in filtered air the dust of 10 μm and above larger particles.
3rd step: what prepare the employing of stainless steel protecting wire net skin is 26 order 304 stainless steel cloths, and steel wire diameter is at 0.05mm; Be cut into and be of a size of: 100 × 100mm size is stand-by.
4th step: the nano polypropylene nitrile fiber non-woven being coated with nano active carbon prepared is arranged between two-layer polyster fibre felt by the assembling of filtering material; Again the stainless steel sheath cut out is placed in polyster fibre felt both sides, five layer materials are fixed with bolt after compressing on four angles.
Embodiment 2:
A kind of filter material for air purification; it is multi-layer compound structure; be made up of central core and symmetrically arranged polyster fibre felt intermediate layer, stainless steel protecting wire net skin; described central core thickness is 32mm; it is made up of nano polypropylene nitrile (PAN) fabric nonwoven cloth stacked the adding through active carbon nanoparticles particle coating; nanometer PAN fibre diameter is wherein 150-200 nanometer; active carbon nanoparticles particle diameter is 40nm; polyster fibre felt intermediate layer thickness 15mm; stainless steel protecting wire net skin is protective layer, and five layer materials are bolted after compressing.The thickness of described individual layer nano polypropylene nitrile fabric nonwoven cloth is 4mm, every square meter individual layer nano polypropylene nitrile fabric nonwoven cloth is coated with 35-45g active carbon, and 8 layers of described nano polypropylene nitrile fabric nonwoven cloth stack up and form nano polypropylene nitrile fabric nonwoven cloth central core.
The preparation method of the above-mentioned filter material for air purification of the present invention, it comprises the following steps: first prepare nano polypropylene nitrile fabric nonwoven cloth central core, polyacrylonitrile particle is dissolved in N-N dimethyl formamide (DMF), be made into the polyacrylonitrile solution that mass percent is 15%, and then the polyacrylonitrile solution prepared is injected in multi-nozzle electrospinning device, prepare uniform white nano polypropylene nitrile fabric nonwoven cloth, polyacrylonitrile fibre diameter 150-200nm wherein, the thickness of one deck polyacrylonitrile fibre non-woven fabrics is 4mm; Then the nano fiber non-woven fabric prepared is cut into sheet material, it is of a size of: 100 × 100mm; By active carbon nanoparticles Granular composite in polyvinyl alcohol water solution, the diameter of described active carbon nanoparticles particle is 40nm, in solution, polyvinyl alcohol mass content is 2%, wherein active carbon coated weight is every square meter polyacrylonitrile nano non-woven fabrics coating 40g, all the other are water, are sprayed onto nano fiber non-woven fabric surface after atomization.8 layers of described nano fiber non-woven fabric stack up and form nano polypropylene nitrile fabric nonwoven cloth central core.
Second step: prepare polyster fibre felt intermediate layer and adopt fibre diameter 12 μm of polyster fibres, intermediate layer thickness is 20mm, cuts into sheet material, and it is of a size of: 100 × 100mm; Play coarse filtration effect, to be used in filtered air the dust of 10 μm and above larger particles.
3rd step: what prepare the employing of stainless steel protecting wire net skin is 40 order 304 stainless steel cloths, and steel wire diameter is at 0.12mm; Be cut into and be of a size of: 100 × 100mm size is stand-by.
4th step: the nano polypropylene nitrile fiber non-woven being coated with nano active carbon prepared is arranged between two-layer polyster fibre felt by the assembling of filtering material; Again the stainless steel sheath cut out is placed in polyster fibre felt both sides, five layer materials are fixed with bolt after compressing on four angles.
Embodiment 3: a kind of filter material for air purification; it is multi-layer compound structure; be made up of central core and symmetrically arranged polyster fibre felt intermediate layer, stainless steel protecting wire net skin; described central core thickness is 50mm; it is made up of nano polypropylene nitrile (PAN) fabric nonwoven cloth stacked the adding through active carbon nanoparticles particle coating; nanometer PAN fibre diameter is wherein 150-200 nanometer; active carbon nanoparticles particle diameter is 50nm; polyster fibre felt intermediate layer thickness 25mm; stainless steel protecting wire net skin is protective layer, and five layer materials are bolted after compressing.The thickness of described individual layer nano polypropylene nitrile fabric nonwoven cloth is 5mm, every square meter individual layer nano polypropylene nitrile fabric nonwoven cloth is coated with 35-45g active carbon, and 10 layers of described nano polypropylene nitrile fabric nonwoven cloth stack up and form nano polypropylene nitrile fabric nonwoven cloth central core.
The preparation method of the above-mentioned filter material for air purification of the present invention, it comprises the following steps: first prepare nano polypropylene nitrile fabric nonwoven cloth central core, polyacrylonitrile particle is dissolved in N-N dimethyl formamide (DMF), be made into the polyacrylonitrile solution that mass percent is 16%, and then the polyacrylonitrile solution prepared is injected in multi-nozzle electrospinning device, prepare uniform white nano polypropylene nitrile fabric nonwoven cloth, polyacrylonitrile fibre diameter 150-200nm wherein, the thickness of one deck polyacrylonitrile fibre non-woven fabrics is 5mm; Then the nano fiber non-woven fabric prepared is cut into sheet material, it is of a size of: 100 × 100mm; By active carbon nanoparticles Granular composite in polyvinyl alcohol water solution, the diameter of described active carbon nanoparticles particle is 50nm, and in solution, polyvinyl alcohol mass content is 2%, and all the other are water, is sprayed onto nano fiber non-woven fabric surface after atomization.Wherein active carbon coated weight is every square meter polyacrylonitrile nano non-woven fabrics coating 45g.10 layers of described nano fiber non-woven fabric stack up and form nano polypropylene nitrile fabric nonwoven cloth central core.
Second step: prepare polyster fibre felt intermediate layer and adopt fibre diameter 22 μm of polyster fibres, intermediate layer thickness is 25mm, cuts into sheet material, and it is of a size of: 100 × 100mm; Play coarse filtration effect, to be used in filtered air the dust of 10 μm and above larger particles.
3rd step: what prepare the employing of stainless steel protecting wire net skin is 50 order 304 stainless steel cloths, and steel wire diameter is at 0.3mm; Be cut into and be of a size of: 100 × 100mm size is stand-by.
4th step: the nano polypropylene nitrile fiber non-woven being coated with nano active carbon prepared is arranged between two-layer polyster fibre felt by the assembling of filtering material; Again the stainless steel sheath cut out is placed in polyster fibre felt both sides, five layer materials are fixed with bolt after compressing on four angles.
Claims (1)
1. the preparation method of a filter material for air purification, it is characterized in that: it is multi-layer compound structure, be made up of central core and symmetrically arranged polyster fibre felt intermediate layer, stainless steel protecting wire net skin, described central core thickness is 15-50mm, it is made up of nano polypropylene nitrile (PAN) fabric nonwoven cloth stacked the adding through active carbon nanoparticles particle coating, nanometer PAN fibre diameter is wherein 150-200 nanometer, and active carbon nanoparticles particle diameter is 30-50nm; Polyster fibre felt intermediate layer thickness 10-25mm, stainless steel protecting wire net skin is protective layer, and five layer materials are bolted after compressing; It comprises the following steps:
First nano polypropylene nitrile fabric nonwoven cloth central core is prepared, polyacrylonitrile particle is dissolved in N-N dimethyl formamide (DMF), be made into the polyacrylonitrile solution that mass percent is 12-16%, and then the polyacrylonitrile solution prepared is injected in multi-nozzle electrospinning device, prepare uniform white nano polypropylene nitrile fabric nonwoven cloth, polyacrylonitrile fibre diameter 150-200nm wherein, the thickness of one deck polyacrylonitrile fibre non-woven fabrics is 3-5mm; Then the nano fiber non-woven fabric prepared is cut into sheet material; By active carbon nanoparticles Granular composite in polyvinyl alcohol water solution, the diameter of described active carbon nanoparticles particle is 30-50nm, and in solution, polyvinyl alcohol mass content is 2%, and all the other are water, is sprayed onto nano polypropylene nitrile fabric nonwoven cloth surface after atomization; The individual layer nano polypropylene nitrile fabric nonwoven cloth of active carbon coated weight to be every square meter thickness be 3-5mm is coated with 35-45g active carbon; 5-10 layer described nano polypropylene nitrile fabric nonwoven cloth stacks up and forms nano polypropylene nitrile fabric nonwoven cloth central core;
Second step: prepare polyster fibre felt intermediate layer and adopt fibre diameter 8-22 μm of polyster fibre, intermediate layer thickness is 10-25mm, cuts into sheet material;
3rd step: what prepare the employing of stainless steel protecting wire net skin is 26-50 order 304 stainless steel cloth, and steel wire diameter is at 0.05-0.3mm;
4th step: the nano polypropylene nitrile fiber non-woven being coated with nano active carbon prepared is arranged between two-layer polyster fibre felt by the assembling of filtering material; Again the stainless steel sheath cut out is placed in polyster fibre felt both sides, five layer materials are fixed with bolt after compressing on four angles.
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Cited By (1)
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| CN106925031A (en) * | 2015-12-29 | 2017-07-07 | 天津中盛生物工程有限公司 | A kind of shitosan air filting material and preparation method thereof |
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| CN104165106A (en) * | 2014-06-30 | 2014-11-26 | 赖昭文 | Air filter element convenient to wash |
| CN104258637A (en) * | 2014-10-13 | 2015-01-07 | 江苏瀚霆环保滤材有限公司 | High-temperature filter material for treatment of kiln tails of cement plants |
| CN104790124B (en) * | 2015-04-28 | 2017-01-18 | 深圳市东城绿色投资有限公司 | Nanofiber non-woven fabric and preparation method thereof |
| CN106368048A (en) * | 2016-08-30 | 2017-02-01 | 苏州华泰空气过滤器有限公司 | Preparation method of active carbon nanoparticle filter paper |
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