CN203614010U - Laminated window screen mesh capable of defending PM2.5 - Google Patents
Laminated window screen mesh capable of defending PM2.5 Download PDFInfo
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- CN203614010U CN203614010U CN201320800533.9U CN201320800533U CN203614010U CN 203614010 U CN203614010 U CN 203614010U CN 201320800533 U CN201320800533 U CN 201320800533U CN 203614010 U CN203614010 U CN 203614010U
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Abstract
The utility model relates to a laminated window screen mesh capable of defending PM2.5. The laminated window screen mesh comprises a mesh layer, wherein one side of the mesh layer is provided with an adsorption layer, one surface of the adsorption layer clings to the mesh layer, and adhesive strips are arranged around the other surface of the adsorption layer. The adsorption layer at least comprises a polypropylene spun-bonded non-woven fabric layer and a superfine electret melt-blown fiber non-woven fabric layer, wherein small ventilation holes are distributed in the polypropylene spun-bonded non-woven fabric layer evenly, and weight per unit area of the superfine electret melt-blown fiber non-woven fabric layer is 25g/m<2>-50g/m<2>. By means of the laminated window screen mesh, PM2.5 in the air can be effectively filtered and adsorbed, purification of indoor air environment is facilitated, indoor PM2.5 concentration is effectively reduced, PM2.5 filter efficiency reaches up to 99.75 percent, and air permeability, light transmission and PM2.5 filter efficiency can be integrated in a high level mode. High PM2.5 filter efficiency, air permeability and light transmission of the window screen mesh can be ensured and normal ventilation and daylighting can be ensured.
Description
Technical field
The utility model relates to a kind of composite window screen net, and specifically one can be filtered PM
2.5composite window screen net.
Background technology
High concentration PM
2.5pollution effect ambient air quality and healthy.PM
2.5refer to that diameter in atmosphere is less than or equal to the particle of 2.5 μ m, also referred to as entering lung particle.Everyone every day the average air that approximately sucks approximately 10,000 liters, the micronic dust that enters alveolar can be absorbed rapidly, directly enter blood circulation without liver detoxification is distributed to whole body; Secondly, can damage the ability of hemoglobin delivery of oxygen, lose blood.Concerning the patient of anaemia and blood circulation disorder, may produce serious consequence.For example, can increase the weight of respiratory disease, even cause the heart disease such as congestive heart failure and coronary artery.These particles can also enter blood by bronchus and alveolar, and pernicious gas, heavy metal etc. is wherein dissolved in blood, larger to the injury of health.In recent years, PM
2.5high pollution event takes place frequently, sometimes up to 800-900 μ g/m
3, than state specified standards 75 μ g/m
3standard exceed more than 10 times.
Along with resident's habitat condition improve constantly, the increase of floor space has brought the increase of door and window area, and the various door and windows that land enter huge numbers of families, and screen window becomes the requisite part of living at home.But it is estimated that, enter into indoor particle from common screen window and account for 80% of indoor total particulate amount every day.Between the gray haze emergence period, a large amount of residents, at the outdoor mouth mask of having put on, still but can not wear masks indoor always.Due to the needs of ventilation, a large amount of PM
2.5enter into again resident's indoor environment by window, cause outdoor large haze and indoor little haze.Screen window on market is of a great variety, and existing structure complexity is expensive, also has easily, but does not also have in the market one can effectively filter PM
2.5screen window.Make effective filtration PM
2.5screen window just must effective filtration PM
2.5screen of screen window.
The common screen window of selling on the market now generally can only play shielding action to mosquito, does not have filtration for fine particulates.Common dustproof screen window is if it were not for pass through to increase the grid order number of screen window from the physical arrangement of screen window, otherwise just stick one deck sorbing material and improve the filter efficiency to particle, but the filter efficiency for fine particulates is all bad, can not effectively solve indoor PM under outdoor haze weather
2.5concentration problems.
For effectively advancing PM
2.5the development innovation of protective mesh window, reaches and prevents air pollution, and the particularly infringement of airborne pellet to human body, so need a kind of PM badly
2.5high efficient protected screen window composite window screen net.
Summary of the invention
For the deficiencies in the prior art, the utility model provides one to have good gas permeability and light transmission, also has good hygroscopicity, the PM that cost is low simultaneously
2.5protection composite window screen net.
The technical solution of the utility model is as follows:
A kind of PM
2.5protection composite window screen net, described composite window screen net comprises warp layer stratum reticulare, it is characterized in that, a side at gauze layer is provided with adsorption layer, the one side of adsorption layer is close to gauze layer, the periphery of another side is provided with viscose bar, described adsorption layer at least comprises polypropylene spunbond nonwoven layer and super fine denier electret meltblown fibers nonwoven layer, in described polypropylene spunbond nonwoven layer, be evenly equipped with small ventilating holes, small ventilating holes runs through polypropylene spunbond nonwoven layer, the aperture of small ventilating holes is 0.3～0.6mm, described super fine denier electret meltblown fibers nonwoven layer weight per unit area is 25～50g/m
2, polypropylene spunbond nonwoven layer weight per unit area is 15～25g/m
2.
Super fine denier electret meltblown fibers nonwoven layer weight per unit area of the present utility model is according to screen of screen window and regioselective, that those skilled in the art obtains through long-term experiment test, the utility model, by selecting rightly each layer of weight per unit area, can have gas permeability, light transmission and PM concurrently high-levelly
2.5filter efficiency.Both guaranteed the efficient PM of screen of screen window
2.5filter efficiency, has guaranteed again gas permeability and the light transmission, particularly gas permeability, light transmission and the PM of super fine denier electret meltblown fibers nonwoven layer weight per unit area to screen window of screen of screen window
2.5filter efficiency is most important, finds, when super fine denier electret meltblown fibers nonwoven layer weight per unit area is less than 25g/m through long-term experiment
2time, the PM of screen of screen window
2.5filter efficiency is obviously low, along with super fine denier electret meltblown fibers nonwoven layer weight per unit area increases gradually, and the PM of screen of screen window
2.5filter efficiency increases gradually, when thin dawn electret meltblown fibers nonwoven layer weight per unit area reaches 40g/m
2time, along with the increase of unit area grammes per square metre, the PM of screen of screen window
2.5filter efficiency is than grammes per square metre 40g/m
2filter efficiency remains basically stable, but along with the increase of super fine denier electret meltblown fibers nonwoven layer weight per unit area, the gas permeability of screen of screen window reduces gradually, and light transmission reduces greatly, and cost increases simultaneously.Each layer of weight per unit area of the present utility model is all to have gas permeability, light transmission and PM concurrently based on screen of screen window
2.5filter efficiency and regioselective.
The utility model is preferred, described adsorption layer comprises one deck polypropylene spunbond nonwoven layer and one deck super fine denier electret meltblown fibers nonwoven layer, one side and the gauze layer of described polypropylene spunbond nonwoven layer are close to, opposite side and super fine denier electret meltblown fibers nonwoven layer are close to, and viscose bar is attached on the periphery in super fine denier electret meltblown fibers nonwoven layer outside.Super fine denier electret meltblown fibers nonwoven layer weight per unit area is 30～40g/m
2, thickness is 0.2～0.4mm, the weight per unit area of polypropylene spunbond nonwoven layer is 18～20g/m
2, thickness is 0.4mm～0.6mm.
The utility model is preferred, described adsorption layer comprises one deck polypropylene spunbond nonwoven layer and two-layer super fine denier electret meltblown fibers nonwoven layer, polypropylene spunbond nonwoven layer is clipped between two-layer super fine denier electret meltblown fibers nonwoven layer, gauze layer is close to the wherein outside of one deck super fine denier electret meltblown fibers nonwoven layer, viscose bar is attached on the periphery in other one deck super fine denier electret meltblown fibers nonwoven layer outside, and super fine denier electret meltblown fibers nonwoven layer weight per unit area is 30～40g/m
2, thickness is 0.2～0.4mm, the weight per unit area of polypropylene spunbond nonwoven layer is 18～20g/m
2, thickness is 0.4mm～0.6mm.
The utility model is preferred, described adsorption layer comprises one deck polypropylene spunbond nonwoven layer, one deck super fine denier electret meltblown fibers nonwoven layer and layer of active carbon spongy layer, super fine denier electret meltblown fibers nonwoven layer is clipped between one deck polypropylene spunbond nonwoven layer and layer of active carbon spongy layer, gauze layer is close to the outside of active carbon spongy layer, viscose bar is attached on the periphery in polypropylene spunbond nonwoven layer outside, and super fine denier electret meltblown fibers nonwoven layer weight per unit area is 30～40g/m
2, thickness is 0.2～0.4mm, the weight per unit area of polypropylene spunbond nonwoven layer is 18～20g/m
2, thickness is 0.4mm～0.6mm, the thickness of active carbon spongy layer is 0.4mm～0.6mm.
The utility model is preferred, described adsorption layer comprises two-layer super fine denier electret meltblown fibers nonwoven layer, one deck polypropylene spunbond nonwoven layer and layer of active carbon spongy layer, one deck polypropylene spunbond nonwoven layer and layer of active carbon spongy layer are clipped between two-layer super fine denier electret meltblown fibers nonwoven layer, gauze layer is close to the wherein outside of one deck super fine denier electret meltblown fibers nonwoven layer, viscose bar is attached on the periphery in other one deck super fine denier electret meltblown fibers nonwoven layer outside, super fine denier electret meltblown fibers nonwoven layer weight per unit area is 30～40g/m
2, thickness is 0.2～0.4mm, the weight per unit area of polypropylene spunbond nonwoven layer is 18～20g/m
2, thickness is 0.4mm～0.6mm, the thickness of active carbon spongy layer is 0.4mm～0.6mm.
Further preferred, the weight per unit area of polypropylene spunbond nonwoven layer is 20g/m
2, super fine denier electret meltblown fibers nonwoven layer weight per unit area is 40g/m
2.
Further preferred, the weight per unit area of polypropylene spunbond nonwoven layer is 20g/m
2, super fine denier electret meltblown fibers nonwoven layer weight per unit area is 35g/m
2.
The utility model is preferred, and in every square meter polypropylene spunbond nonwoven layer, the quantity of small ventilating holes is 8～120,000, and described gauze layer is 500 order-1500 object gauzes.
The screen of screen window that the utility model adopts is multi-layer compound structure, can increase its filter effect to pellet, when super fine denier electret meltblown fibers nonwoven layer weight per unit area is 20g/m
2time filter effect best, screen of screen window of the present utility model has good gas permeability, core material adopts the super fine denier electret meltblown fibers non-weaving cloth of micro-filtration technical finesse, PM, with resident electrostatic field, is worked as in surface
2.5when granular superfine microparticle passes through the space of micro-filtration filter material, the electrostatic field being produced by micro-filtration filter material and weak current are caught, the pressure reduction filtering is than conventional low 30 times of left and right, in polypropylene spunbond nonwoven layer, be provided with small ventilating holes simultaneously, so under equal filter efficiency, this screen of screen window improves permeability greatly.The increase of active carbon spongy layer, can be filtering in Nanoparticle the poisonous and harmful substance in absorbed air as benzene, formaldehyde, ammonia, sulfur dioxide etc. and remove airborne peculiar smell.The inside and outside gauze arranging can strengthen its pull resistance and application life, and can remove in advance airborne large particulate matter.
The preparation of described super fine denier electret meltblown fibers nonwoven layer is by prior art, and the utility model preferred version is as follows:
The preparation of super fine denier electret meltblown fibers nonwoven layer:
(1) tourmaline that is 400-600nm by particle diameter is put into super mixer, after pre-thermal agitation 20min, add 3～4% low density polyethylene (LDPE) waxes, the antioxidant of tourmaline weight, then divide 2～5% coupling agent titanate esters that add tourmaline weight for three times, after stirring respectively 20min, take out, 105 ℃ of constant temperature in drying box, dry 2 hours.
(2) tourmaline of handling well through step (1) is added in mixer and mixed about 10 minutes with 1:4 ratio with polypropylene chip, again the tourmaline mixing and polypropylene chip are melt extruded at 120～140 ℃ of temperature, cooling through water-bath, cutting granulating, makes modified master batch.
(3) modified master batch making is mixed with polypropylene chip under the condition of 250 ± 1 ℃ by 30% mass percent, take melt flow index as 1200g/10min, make melt-blowing nonwoven, through corona discharge, melt-blowing nonwoven is carried out to electret again, after electret, contain tourmaline polypropylene melt-blown superfine fiber nonwovens, fibre web surface charge density obviously increases, electret charge storage ability also has enhancing, filter efficiency improves 40%, wherein when tourmaline content 6%, electret resultant effect the best, its surface charge density can reach-10 μ c/m
2, diameter is less than to 0.26 μ m grain, in the time that filtration resistance is 7Pa left and right, filter efficiency reaches 95.8%.
The utility model is preferred, and the fiber number that forms the fiber of above-mentioned super fine denier electret meltblown fibers nonwoven layer is 0.01～0.1 danier.The diameter of superfine fibre is very little, is so small to have only 1/40th of hairline, and therefore superfine fibre has been endowed many superior performances: feel is soft and smooth, good permeability, to granule adsorption effect significantly, there is extremely strong clean effect etc.
The utility model also provides a kind of PM
2.5the preparation method of protection composite window screen net, step is as follows:
In order gauze layer, adsorption layer are stacked and be close together, utilize hot-pressing technique that the periphery of gauze layer, adsorption layer is pressed together, the temperature of described hot pressing is 80-150 ℃, pressing pressure 4.9-25Mpa, when adsorption layer comprises one deck polypropylene spunbond nonwoven layer and one deck super fine denier electret meltblown fibers nonwoven layer, in order gauze layer, polypropylene spunbond nonwoven layer and super fine denier electret meltblown fibers nonwoven layer stacked and be close together, utilizing hot-pressing technique that the periphery of gauze layer, adsorption layer is pressed together; When adsorption layer comprises one deck polypropylene spunbond nonwoven layer and two-layer super fine denier electret meltblown fibers nonwoven layer, in order gauze layer, super fine denier electret meltblown fibers nonwoven layer, polypropylene spunbond nonwoven layer and super fine denier electret meltblown fibers nonwoven layer stacked and be close together, utilizing hot-pressing technique that the periphery of gauze layer, adsorption layer is pressed together; When adsorption layer comprises one deck polypropylene spunbond nonwoven layer, one deck super fine denier electret meltblown fibers nonwoven layer and layer of active carbon spongy layer, in order gauze layer, active carbon spongy layer, super fine denier electret meltblown fibers nonwoven layer and polypropylene spunbond nonwoven layer stacked and be close together, utilizing hot-pressing technique that the periphery of gauze layer, adsorption layer is pressed together; When adsorption layer comprises two-layer super fine denier electret meltblown fibers nonwoven layer, one deck polypropylene spunbond nonwoven layer and layer of active carbon spongy layer, in order gauze layer, super fine denier electret meltblown fibers nonwoven layer, active carbon spongy layer, polypropylene spunbond nonwoven layer and super fine denier electret meltblown fibers nonwoven layer stacked and be close together, utilizing hot-pressing technique that the periphery of gauze layer, adsorption layer is pressed together.
PM of the present utility model
2.5the application of protection composite window screen net, when use, by gauze layer toward the outer side, adsorption layer is towards screen window gauze, thus it is online by PM that the viscose bar of adsorption layer periphery is sticked on to window screen
2.5it is online that protection composite window screen net is fixed on existing window screen, and described screen window gauze is glass fiber mesh, polyester gauze or stainless steel gauze.
Advantage of the present utility model is as follows:
(1) PM of the present utility model
2.5protection composite window screen net can filter the PM in absorbed air efficiently
2.5particle, can contribute to the environment that purifies the air of a room, and effectively reduces indoor PM
2.5concentration, PM
2.5filter efficiency reaches 99.75%, and can have gas permeability, light transmission and PM concurrently high-levelly
2.5filter efficiency, had both guaranteed the efficient PM of screen of screen window
2.5filter efficiency, has guaranteed again gas permeability and the light transmission of screen of screen window can guarantee normal circulation of air and daylighting.
(2) PM of the present utility model
2.5protection composite window screen net also can filter pollen particles fine and closely woven in absorbed air effectively, can provide a comfortable environment for pollen hypersensitivity crowd.
(3) PM of the present utility model
2.5protection composite window screen net nonwoven has stronger pull resistance as adventitia, solve and first had some products yielding defect in use for some time, also there is good hygroscopicity simultaneously, there is good effect on moisture extraction, avoid entering the discomfort that indoor air causes because humidity is excessive.
Accompanying drawing explanation
Fig. 1 is the PM of embodiment 1
2.5protection composite window screen web frame schematic diagram.
Fig. 2 is the PM of embodiment 2
2.5protection composite window screen web frame schematic diagram.
Fig. 3 is the PM of embodiment 3
2.5protection composite window screen web frame schematic diagram.
Fig. 4 is the PM of embodiment 4
2.5protection composite window screen web frame schematic diagram.
Fig. 5 is that the weight of super fine denier electret meltblown fibers nonwoven layer unit area is to PM
2.5filter effect curve map.
Fig. 6 is the PM of embodiment 1
2.5protection composite window screen net effect on moisture extraction figure.
In figure: 1, polypropylene spunbond nonwoven layer, 2, super fine denier electret meltblown fibers nonwoven layer, 3, active carbon spongy layer, 4, gauze layer.
The specific embodiment
By reference to the accompanying drawings the utility model is described further below by specific embodiment, but is not limited to this.
A kind of PM
2.5protection composite window screen net, structure as shown in Figure 1, composite window screen net comprises warp layer stratum reticulare 4, a side at gauze layer 4 is provided with adsorption layer, described adsorption layer comprises one deck polypropylene spunbond nonwoven layer 1 and one deck super fine denier electret meltblown fibers nonwoven layer 2, one side and the gauze layer 4 of polypropylene spunbond nonwoven layer 1 are close to, and opposite side and super fine denier electret meltblown fibers nonwoven layer 2 are close to, and are provided with viscose bar at the periphery in super fine denier electret meltblown fibers nonwoven layer 2 outsides.In described polypropylene spunbond nonwoven layer, be evenly equipped with small ventilating holes, small ventilating holes runs through polypropylene spunbond nonwoven layer, and the aperture of small ventilating holes is 0.5mm, and in every square meter polypropylene spunbond nonwoven layer, the quantity of small ventilating holes is 100,000.Super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 25g/m
2, thickness is 0.2mm, polypropylene spunbond nonwoven layer 1 weight per unit area is 20g/m
2, thickness is 0.4mm.
In order gauze layer, polypropylene spunbond nonwoven layer and super fine denier electret meltblown fibers nonwoven layer stacked and be close together, utilizing hot-pressing technique that the periphery of gauze layer, adsorption layer is pressed together; The temperature of described hot pressing is 100 ℃, pressing pressure 15Mpa.
The PM of the present embodiment
2.5protection composite window screen net net effect on moisture extraction is shown in Fig. 6.
A kind of PM
2.5protection composite window screen net, as described in Example 1, difference is structure,
Super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 30g/m
2.
A kind of PM
2.5protection composite window screen net, as shown in Figure 1, difference is structure,
Super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 35g/m
2.
A kind of PM
2.5protection composite window screen net, as shown in Figure 1, difference is structure,
Super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 40g/m
2.
A kind of PM
2.5protection composite window screen net, as shown in Figure 1, difference is structure,
Super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 50g/m
2.
Embodiment 6
A kind of PM
2.5protection composite window screen net, structure as shown in Figure 2, composite window screen net comprises warp layer stratum reticulare 4, a side at gauze layer 4 is provided with adsorption layer, described adsorption layer comprises one deck polypropylene spunbond nonwoven layer 1 and two-layer super fine denier electret meltblown fibers nonwoven layer 2, polypropylene spunbond nonwoven layer 1 is clipped between two-layer super fine denier electret meltblown fibers nonwoven layer 2, gauze layer 4 is close to the wherein outside of one deck super fine denier electret meltblown fibers nonwoven layer 2, viscose bar is attached on the periphery in other one deck super fine denier electret meltblown fibers nonwoven layer 2 outsides, in described polypropylene spunbond nonwoven layer, be evenly equipped with small ventilating holes, small ventilating holes runs through polypropylene spunbond nonwoven layer, the aperture of small ventilating holes is 0.3mm, in every square meter polypropylene spunbond nonwoven layer, the quantity of small ventilating holes is 120,000.Super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 40g/m
2, thickness is 0.2mm, polypropylene spunbond nonwoven layer 1 weight per unit area is 20g/m
2, thickness is 0.4mm.
Embodiment 7
A kind of PM
2.5protection composite window screen net, structure as shown in Figure 3, composite window screen net comprises warp layer stratum reticulare 4, a side at gauze layer 4 is provided with adsorption layer, described adsorption layer comprises one deck polypropylene spunbond nonwoven layer 1, one deck super fine denier electret meltblown fibers nonwoven layer 2 and layer of active carbon spongy layer 3, super fine denier electret meltblown fibers nonwoven layer 2 is clipped between one deck polypropylene spunbond nonwoven layer 1 and layer of active carbon spongy layer 3, gauze layer 4 is close to the outside of active carbon spongy layer 3, viscose bar is attached on the periphery in polypropylene spunbond nonwoven layer 1 outside, in described polypropylene spunbond nonwoven layer 1, be evenly equipped with small ventilating holes, small ventilating holes runs through polypropylene spunbond nonwoven layer, the aperture of small ventilating holes is 0.6mm, in every square meter polypropylene spunbond nonwoven layer, the quantity of small ventilating holes is 80,000.Super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 35g/m
2, thickness is 0.3mm, polypropylene spunbond nonwoven layer 1 weight per unit area is 20g/m
2, thickness is 0.4mm.
Embodiment 8
A kind of PM
2.5protection composite window screen net, structure as shown in Figure 4, composite window screen net comprises warp layer stratum reticulare 4, a side at gauze layer 4 is provided with adsorption layer, described adsorption layer comprises two-layer super fine denier electret meltblown fibers nonwoven layer 2, one deck polypropylene spunbond nonwoven layer 1 and layer of active carbon spongy layer 2, one deck polypropylene spunbond nonwoven layer 1 and layer of active carbon spongy layer 3 are clipped between two-layer super fine denier electret meltblown fibers nonwoven layer 2, gauze layer 4 is close to the wherein outside of one deck super fine denier electret meltblown fibers nonwoven layer 2, viscose bar is attached on the periphery in other one deck super fine denier electret meltblown fibers nonwoven layer outside 2, in described polypropylene spunbond nonwoven layer 1, be evenly equipped with small ventilating holes, small ventilating holes runs through polypropylene spunbond nonwoven layer, the aperture of small ventilating holes is 0.4mm, in every square meter polypropylene spunbond nonwoven layer, the quantity of small ventilating holes is 90,000.Super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 40g/m
2, thickness is 0.3mm, polypropylene spunbond nonwoven layer 1 weight per unit area is 20g/m
2, thickness is 0.4mm.
Comparative example
PM as described in Example 1
2.5protection composite window screen net, difference is,
Comparative example 1: super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 10g/m
2.
Comparative example 2: super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 15g/m
2.
Comparative example 3: super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 70g/m
2.
Comparative example 4: super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 80g/m
2.
Comparative example 5: super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 90g/m
2.
Comparative example 6: super fine denier electret meltblown fibers nonwoven layer 2 weight per unit areas are 100g/m
2.
About each screen of screen window of above-described embodiment 1～8 and comparative example 1～6 to PM
2.5filter efficiency is with reference to Fig. 5.
Experimental example
By above-described embodiment 1～embodiment 5, comparative example 1～comparative example 6 totally 11 screen of screen windows be placed in and under the same terms, test it and filter PM
2.5performance evaluation, in the time carrying out this evaluation, each screen of screen window of the above embodiments 1～6 and comparative example 1～6 is placed in to PM
2.5in the identical atmospheric environment of concentration, under 25 ℃ of conditions of room temperature, all guarantee Measurement sensibility through the ventilation of 2～3min in advance, then through the measuring of 1 hour, utilize existing AM510 PM
2.5tester, under above-mentioned identical rated condition, measures respectively the PM through embodiment 1～embodiment 6, comparative example 1～comparative example 6 screen of screen windows
2.5concentration, by the PM after screen window net filtration
2.5pM before concentration and filtration
2.5concentration is compared, and is the PM of screen of screen window
2.5filter efficiency, then get the average in this period, be the PM of screen of screen window
2.5average filtration efficiency.
PM
2.5the PM of filter efficiency=after screen window net filtration
2.5pM before concentration/filtration
2.5concentration
By above-described embodiment 1～embodiment 6, comparative example 1～comparative example 6 PM after treatment
2.5filter efficiency is made a contrast test table, and comparing result sees the following form 1:
Table 1 super fine denier electret meltblown fibers nonwoven layer weight per unit area is to PM
2.5the impact of filter efficiency
Conclusion: by the data in table 1 to finding out, PM of the present utility model
2.5the weight of the unit area of the super fine denier electret meltblown fibers nonwoven layer of protection composite window screen net is to PM
2.5the impact of filter efficiency is larger, along with the increase of the weight per unit area of super fine denier electret meltblown fibers nonwoven layer, PM
2.5filter efficiency increases gradually, when the weight of super fine denier electret meltblown fibers nonwoven layer reaches 40gm
-2time, PM
2.5filter efficiency reaches 99.75%, when super fine denier electret meltblown fibers nonwoven layer weight per unit area is less than 20g/m
2time, PM
2.5the PM of protection composite window screen net
2.5filter efficiency is obviously low, along with super fine denier electret meltblown fibers nonwoven layer weight per unit area increases gradually, and PM
2.5the PM of protection composite window screen net
2.5filter efficiency increases gradually, when thin dawn electret meltblown fibers nonwoven layer weight per unit area reaches 40g/m
2time, along with the increase of unit area grammes per square metre, PM
2.5the PM of protection composite window screen net
2.5filter efficiency is than grammes per square metre 40g/m
2filter efficiency remains basically stable, but along with the increase of super fine denier electret meltblown fibers nonwoven layer weight per unit area, PM
2.5the gas permeability of protection composite window screen net, light transmission more and more a little less than, weight increases the weight of gradually, cost also increases gradually, the utility model, by selecting rightly the weight per unit area of super fine denier electret meltblown fibers nonwoven layer, can have PM concurrently high-levelly
2.5gas permeability, light transmission, weight, the high efficiency PM of protection composite window screen net
2.5filter efficiency and manufacturing cost, be controlled at 25～50g/m by super fine denier electret meltblown fibers nonwoven layer weight per unit area
2, optimal case, super fine denier electret meltblown fibers nonwoven layer weight per unit area is controlled at 40g/m
2.
Claims (7)
1. a PM
2.5protection composite window screen net, described composite window screen net comprises warp layer stratum reticulare, it is characterized in that, a side at gauze layer is provided with adsorption layer, the one side of adsorption layer is close to gauze layer, the periphery of another side is provided with viscose bar, described adsorption layer at least comprises polypropylene spunbond nonwoven layer and super fine denier electret meltblown fibers nonwoven layer, in described polypropylene spunbond nonwoven layer, be evenly equipped with small ventilating holes, small ventilating holes runs through polypropylene spunbond nonwoven layer, the aperture of small ventilating holes is 0.3～0.6mm, described super fine denier electret meltblown fibers nonwoven layer weight per unit area is 25～50g/m
2, polypropylene spunbond nonwoven layer weight per unit area is 15～25g/m
2.
2. PM according to claim 1
2.5protection composite window screen net, it is characterized in that, described adsorption layer comprises one deck polypropylene spunbond nonwoven layer and one deck super fine denier electret meltblown fibers nonwoven layer, one side and the gauze layer of described polypropylene spunbond nonwoven layer are close to, opposite side and super fine denier electret meltblown fibers nonwoven layer are close to, viscose bar is attached on the periphery in super fine denier electret meltblown fibers nonwoven layer outside, and super fine denier electret meltblown fibers nonwoven layer weight per unit area is 30～40g/m
2, thickness is 0.2～0.4mm, the weight per unit area of polypropylene spunbond nonwoven layer is 18～20g/m
2, thickness is 0.4mm～0.6mm.
3. PM according to claim 1
2.5protection composite window screen net, it is characterized in that, described adsorption layer comprises one deck polypropylene spunbond nonwoven layer and two-layer super fine denier electret meltblown fibers nonwoven layer, polypropylene spunbond nonwoven layer is clipped between two-layer super fine denier electret meltblown fibers nonwoven layer, gauze layer is close to the wherein outside of one deck super fine denier electret meltblown fibers nonwoven layer, viscose bar is attached on the periphery in other one deck super fine denier electret meltblown fibers nonwoven layer outside, and super fine denier electret meltblown fibers nonwoven layer weight per unit area is 30～40g/m
2, thickness is 0.2～0.4mm, the weight per unit area of polypropylene spunbond nonwoven layer is 18～20g/m
2, thickness is 0.4mm～0.6mm.
4. PM according to claim 1
2.5protection composite window screen net, it is characterized in that, described adsorption layer comprises one deck polypropylene spunbond nonwoven layer, one deck super fine denier electret meltblown fibers nonwoven layer and layer of active carbon spongy layer, super fine denier electret meltblown fibers nonwoven layer is clipped between one deck polypropylene spunbond nonwoven layer and layer of active carbon spongy layer, gauze layer is close to the outside of active carbon spongy layer, viscose bar is attached on the periphery in polypropylene spunbond nonwoven layer outside, and super fine denier electret meltblown fibers nonwoven layer weight per unit area is 30～40g/m
2, thickness is 0.2～0.4mm, the weight per unit area of polypropylene spunbond nonwoven layer is 18～20g/m
2, thickness is 0.4mm～0.6mm, the thickness of active carbon spongy layer is 0.4mm～0.6mm.
5. PM according to claim 1
2.5protection composite window screen net, it is characterized in that, described adsorption layer comprises two-layer super fine denier electret meltblown fibers nonwoven layer, one deck polypropylene spunbond nonwoven layer and layer of active carbon spongy layer, one deck polypropylene spunbond nonwoven layer and layer of active carbon spongy layer are clipped between two-layer super fine denier electret meltblown fibers nonwoven layer, gauze layer is close to the wherein outside of one deck super fine denier electret meltblown fibers nonwoven layer, viscose bar is attached on the periphery in other one deck super fine denier electret meltblown fibers nonwoven layer outside, super fine denier electret meltblown fibers nonwoven layer weight per unit area is 30～40g/m
2, thickness is 0.2～0.4mm, the weight per unit area of polypropylene spunbond nonwoven layer is 18～20g/m
2, thickness is 0.4mm～0.6mm, the thickness of active carbon spongy layer is 0.4mm～0.6mm.
6. according to the PM described in claim 2-5 any one
2.5protection composite window screen net, is characterized in that, the weight per unit area of polypropylene spunbond nonwoven layer is 20g/m
2, super fine denier electret meltblown fibers nonwoven layer weight per unit area is 40g/m
2, preferably, the weight per unit area of polypropylene spunbond nonwoven layer is 20g/m
2, super fine denier electret meltblown fibers nonwoven layer weight per unit area is 35g/m
2.
7. PM according to claim 1
2.5protection composite window screen net, is characterized in that, in every square meter polypropylene spunbond nonwoven layer, the quantity of small ventilating holes is 8～120,000, and described gauze layer is 500 order-1500 object gauzes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320800533.9U CN203614010U (en) | 2013-12-06 | 2013-12-06 | Laminated window screen mesh capable of defending PM2.5 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320800533.9U CN203614010U (en) | 2013-12-06 | 2013-12-06 | Laminated window screen mesh capable of defending PM2.5 |
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| CN203614010U true CN203614010U (en) | 2014-05-28 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643882A (en) * | 2013-12-06 | 2014-03-19 | 山东大学 | PM2.5 protection composite screen window mesh |
| CN105624922A (en) * | 2015-11-06 | 2016-06-01 | 绿纳科技有限责任公司 | Preparation method of transparent screen with PM2.5 fine particle filtering function |
| CN105888517A (en) * | 2016-05-17 | 2016-08-24 | 山东大学 | Anti-haze carbon fiber window screen and method for manufacturing same |
| CN105888103A (en) * | 2016-05-31 | 2016-08-24 | 浙江大学宁波理工学院 | Outer wall of building and method for preventing PM2.5 through outer wall |
| CN111364910A (en) * | 2020-03-29 | 2020-07-03 | 复旦大学 | New compound screen window net of coronavirus protection |
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2013
- 2013-12-06 CN CN201320800533.9U patent/CN203614010U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103643882A (en) * | 2013-12-06 | 2014-03-19 | 山东大学 | PM2.5 protection composite screen window mesh |
| CN103643882B (en) * | 2013-12-06 | 2016-06-29 | 山东大学 | A kind of PM2.5Protection composite window screen net |
| CN105624922A (en) * | 2015-11-06 | 2016-06-01 | 绿纳科技有限责任公司 | Preparation method of transparent screen with PM2.5 fine particle filtering function |
| CN105624922B (en) * | 2015-11-06 | 2019-03-08 | 绿纳科技有限责任公司 | A kind of preparation method of the transparent gauze with PM2.5 fine grained filtering function |
| CN105888517A (en) * | 2016-05-17 | 2016-08-24 | 山东大学 | Anti-haze carbon fiber window screen and method for manufacturing same |
| CN105888517B (en) * | 2016-05-17 | 2017-08-11 | 山东大学 | A kind of carbon fiber haze screen window and preparation method thereof |
| CN105888103A (en) * | 2016-05-31 | 2016-08-24 | 浙江大学宁波理工学院 | Outer wall of building and method for preventing PM2.5 through outer wall |
| CN111364910A (en) * | 2020-03-29 | 2020-07-03 | 复旦大学 | New compound screen window net of coronavirus protection |
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