CN107373822A - A kind of protective mask - Google Patents
A kind of protective mask Download PDFInfo
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- CN107373822A CN107373822A CN201710805893.0A CN201710805893A CN107373822A CN 107373822 A CN107373822 A CN 107373822A CN 201710805893 A CN201710805893 A CN 201710805893A CN 107373822 A CN107373822 A CN 107373822A
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
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Abstract
The invention discloses a kind of protective mask, it includes mask body, described mask body, described mask body body includes outer layer middle level and internal layer, the centre of outer layer has support frame, described support frame both sides have upper ventilative seam and lower ventilative seam, and described upper ventilative seam and lower ventilative seam also have air-vent, and the both sides of described mask body have fixing band.The mouth mask of the present invention has good protective action, and mask body has upper ventilative seam and lower ventilative seam, and described upper ventilative seam and lower ventilative seam also have air-vent, and scavenging performance is good, and has cleaned filtering layer, can effectively reduce the entrance of toxic gas.
Description
Technical field
The present invention relates to a kind of protective mask.
Background technology
In the environment of industrial production or special operation, air quality is often relatively more severe, and toxic and harmful gas is more, no
Beneficial to personal production operation, it is necessary to a kind of good mouth mask of barrier propterty.
The content of the invention
For above-mentioned problem, the present invention provides a kind of protective mask, has good protective action.
To achieve these goals, technical scheme provided by the invention is：A kind of protective mask, it includes mask body,
Described mask body, described mask body body include outer layer middle level and internal layer, and the centre of outer layer has support frame, institute
The support frame both sides stated have upper ventilative seam and lower ventilative seam, and described upper ventilative seam and lower ventilative seam also have air-vent,
The both sides of described mask body have fixing band.
The both sides of described mask body respectively have two fixing bands, are symmetrical arranged up and down.
Described mask body includes outer layer middle level and internal layer, and described outer layer is barrier layer,
Middle level is cleaned filtering layer, and internal layer is contact layer.
Described cleaned filtering layer uses nano material for air purification.
The contact layer of described internal layer uses nonwoven cloth material.
The mouth mask of the present invention has good protective action, and mask body has upper ventilative seam and lower ventilative seam, described
Upper ventilative seam and lower ventilative seam also have air-vent, and scavenging performance is good, and has cleaned filtering layer, can effectively reduce poisonous
The entrance of gas, its cleaned filtering layer is using the double modification single-walled carbon nanotube formaldehyde composite catalyzing purifications of Ni/Fe-PDDA/PSS
Grain, its clean-up effect are very notable.
Brief description of the drawings
Fig. 1 is mouth mask schematic diagram provided in an embodiment of the present invention；
In figure：1st, mask body, 2, support frame, 3, upper ventilative seam, 4, lower ventilative seam, 5, air-vent, the 6, first fixing band, 7,
Second fixing band, the 8, the 3rd fixing band, the 9, the 4th fixing band.
Fig. 2 is mask body structure chart；
In figure：1.1st, upper strata, 1.2, middle level, 1.3, lower floor.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1 and 2 is referred to, a kind of protective mask, it includes mask body 1, described mask body 1, described mouth mask
Body body includes outer layer 1.1, middle level 1.2 and internal layer 1.3, and the centre of outer layer has support frame 2, described support frame two
Side has upper ventilative seam 3 and lower ventilative seam 4, and described upper ventilative seam and lower ventilative seam also have air-vent 5, described mouth mask sheet
The both sides of body have fixing band.
The both sides of described mask body respectively have two fixing bands, are respectively, the first fixing band 6, the second fixing band 7,
3rd fixing band 8, the 4th fixing band 9, is symmetrical arranged up and down.
Described mask body includes outer layer middle level and internal layer, and described outer layer is barrier layer,
Middle level is cleaned filtering layer, and internal layer is contact layer.
Described cleaned filtering layer uses nano material for air purification.
The contact layer of described internal layer uses nonwoven cloth material.
The mouth mask of the present invention has good protective action, and mask body has upper ventilative seam and lower ventilative seam, described
Upper ventilative seam and lower ventilative seam also have air-vent, and scavenging performance is good, and has cleaned filtering layer, can effectively reduce poisonous
The entrance of gas, its cleaned filtering layer is using the double modification single-walled carbon nanotube formaldehyde composite catalyzing purifications of Ni/Fe-PDDA/PSS
Grain, its clean-up effect are very notable.It purifies particle by using monodispersed single-walled carbon nanotube Controllable assembly into orderly
The single-walled carbon nanotube microballoon of hollow ball-shape, and the carbon-based supports of catalyst, this special assembling knot are used as using this microballoon
Structure, the dispersed and abundant exposure of active site is realized, accelerate the dynamic process of oxidation of formaldehyde catalytic reaction.
After carrying out acid treatment using rare earth nitrades and sodium tungstate, then with Ni（NO3）2 and Fe（NO3）3 co-precipitation, improve air
In formaldehyde catalytic conversion, can eliminate in air dissociate formaldehyde.
Specific preparation method is as follows：
Embodiment 1
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 1：4 proportioning is together added to excessive
In concentrated sulfuric acid solution, obtained reaction mixture is placed in 50 DEG C of water-bath with constant temperature blender with magnetic force stirring 1h；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）；
Nitrate is cleaned under ultrasonic oscillation with sodium tungstate, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Embodiment 2
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 1：2 proportioning is together added to excessive
In concentrated sulfuric acid solution, obtained reaction mixture is placed in 50 DEG C of water-bath with constant temperature blender with magnetic force stirring 1h；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）,
Nitrate is cleaned under ultrasonic oscillation with sodium tungstate, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Embodiment 3
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 1：1 proportioning is together added to excessive
In concentrated sulfuric acid solution, obtained reaction mixture is placed in 50 DEG C of water-bath with constant temperature blender with magnetic force stirring 1h；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）,
Nitrate is cleaned under ultrasonic oscillation with sodium tungstate, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Embodiment 4
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 1：1 proportioning is together added to excessive
In concentrated sulfuric acid solution, obtained reaction mixture is placed in 50 DEG C of water-bath with constant temperature blender with magnetic force stirring 1h；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）,
Nitrate is cleaned under ultrasonic oscillation with sodium tungstate, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Embodiment 5
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 2：1 proportioning is together added to excessive
In concentrated sulfuric acid solution, obtained reaction mixture is placed in 50 DEG C of water-bath with constant temperature blender with magnetic force stirring 1h；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）,
Nitrate is cleaned under ultrasonic oscillation with sodium tungstate, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Embodiment 6
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 3：1 proportioning is together added to excessive
In concentrated sulfuric acid solution, obtained reaction mixture is placed in 50 DEG C of water-bath with constant temperature blender with magnetic force stirring 1h；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）,
Nitrate is cleaned under ultrasonic oscillation with sodium tungstate, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Embodiment 7
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 7：1 proportioning is together added to excessive
In concentrated sulfuric acid solution, obtained reaction mixture is placed in 50 DEG C of water-bath with constant temperature blender with magnetic force stirring 1h；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）,
Nitrate is cleaned under ultrasonic oscillation with sodium tungstate, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Embodiment 8
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 1：7 proportioning is together added to excessive
In concentrated sulfuric acid solution, obtained reaction mixture is placed in 50 DEG C of water-bath with constant temperature blender with magnetic force stirring 1h；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）,
Nitrate is cleaned under ultrasonic oscillation with sodium tungstate, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Embodiment 9
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 10：1 proportioning is together added to excess
Concentrated sulfuric acid solution in, obtained reaction mixture is placed in 50 DEG C of water-bath stirs 1h with constant temperature blender with magnetic force；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）, by nitrate and sodium tungstate in ultrasonic oscillation
Lower removal of impurities, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Embodiment 10
Step 1 is by 0.05kg single-walled carbon nanotube solid and potassium permanganate solid with 1：10 proportioning is together added to excess
Concentrated sulfuric acid solution in, obtained reaction mixture is placed in 50 DEG C of water-bath stirs 1h with constant temperature blender with magnetic force；
Step 2 by it is above-mentioned the mixed liquor reacted is diluted with deionized water after, add excessive hydrogen peroxide solution stirring 20min；
Step 3 obtains after the above-mentioned washing using filtering with microporous membrane and dilute hydrochloric acid solution by the mixed liquor reacted
It is neutral that solid is washed to supernatant liquor with deionized water by high speed centrifugation again（PH=7）；
Then step 4 is removed after a layer solid add deionized water to be sufficiently stirred, after further centrifuge washing, take upper strata homogeneous, stably
Solution, produce solution A；
Silicon dioxide microsphere template 0.01kg ultrasonic disperses in 500ml aqueous isopropanols, are added polydiene third by step 5
Base Dimethyl Ammonium ammonium chloride（PDDA）And kayexalate（PSS）Each 50g electromagnetic agitations 10min, obtains solution B；
Above-mentioned solution B is then added drop-wise in solution A by step 6, and 50 DEG C of constant temperature blender with magnetic force stir 0.5h, standing sedimentation, go
Its supernatant liquor, obtains solid product；
The solid product that step 7 obtains above-mentioned steps, silica is etched with 10%HF removed at room temperature, passed through
After filtering washing and drying, anneal 10h under argon inert atmosphere, obtains head product；
The head product that step 8 obtains above-mentioned steps, add in the mixed solution of rare earth nitrades and sodium tungstate and impregnate 48h, temperature
50 DEG C of degree, rare earth nitrades are 3 with sodium tungstate mol ratio:1（0.5mol/L）, by nitrate and sodium tungstate in ultrasonic oscillation
Lower removal of impurities, is then dissolved in deionized water；
Then step 9 centrifuges under centrifugal separator, vacuum rotary evaporator removes moisture removal；
Above-mentioned products therefrom is added Ni by step 10（NO3）2（0.02mol）、Fe（NO3）3（0.04mol）And NaCl
（0.30mol）, it is dissolved in 50ml water, instills 1mol/L sodium hydroxide solution, form precipitation, adjusts PH=9；
Above-mentioned precipitation mixed liquor is put into 85 ~ 95 DEG C of air blast thermostatic drying chambers and dried to weight by step 11；
Above-mentioned dried solid is then placed on isothermal reaction 3h in 700 DEG C of vacuum atmosphere resistance furnaces by step 12, drops to room
Wen Houyong distilled water cleans to neutral and removes unnecessary ion, 100 DEG C of dry 12h, obtains final formaldehyde purifying agent.
Reference examples 1
It is with the difference of embodiment 1：In step 2, hydrogen peroxide is removed, adds excessive sodium hydroxide solution stirring, remaining
Step is identical with embodiment 1.
Reference examples 2
It is with the difference of embodiment 1：In step 5, do not add into diallyl dimethyl ammonium ammonium chloride（PDDA）, but
Kayexalate（PSS）100g, remaining step are identical with embodiment 1.
Reference examples 3
It is with the difference of embodiment 1：In step 5, kayexalate is not added（PSS）, but add polydiene third
Base Dimethyl Ammonium ammonium chloride（PDDA）100g, remaining step are identical with embodiment 1.
Reference examples 4
It is with the difference of embodiment 1：In step 7, using CO2As annealing medium, head product is obtained, remaining step and reality
It is identical to apply example 1.
Reference examples 5
It is with the difference of embodiment 1：In step 7, using argon gas and carbon dioxide mix gas（Volume ratio 3：5）It is situated between as annealing
Matter, head product is obtained, remaining step is identical with embodiment 1.
Reference examples 6
It is with the difference of embodiment 1：In step 8, the mixed solution of rare earth nitrades and sodium tungstate is not added, but add
0.5mol/L sodium chloride solution 500ml, remaining step are identical with embodiment 1.
Reference examples 7
It is with the difference of embodiment 1：In step 8, add the mixed solution of rare earth nitrades and sodium tungstate, rare earth nitrades with
Sodium tungstate mol ratio is 5:1（0.5mol/L）, remaining step is identical with embodiment 1.
Reference examples 8
It is with the difference of embodiment 1：In step 7, add the mixed solution of rare earth nitrades and sodium tungstate, rare earth nitrades with
Sodium tungstate mol ratio is 1:2（0.5mol/L）, remaining step is identical with embodiment 1.
Reference examples 9
It is with the difference of embodiment 1：In step 10, Ni is added（NO3）2（0.06mol）, do not add Fe（NO3）3, remaining step
Suddenly it is identical with embodiment 1.
Reference examples 10
It is with the difference of embodiment 1：In step 10, Fe is added（NO3）3（0.06mol）, do not add Ni（NO3）3, remaining step
Suddenly it is identical with embodiment 1.
Choose the test that the air purifying preparation being prepared carries out correlated performance respectively, at room temperature, mixture of feed body group
Into 1% formaldehyde, 5% oxygen, 2.5% vapor, 96% nitrogen, air speed 1.0 × 105ml·g-1·h- 1,To corresponding formaldehyde conversion
Tested.
Test result indicates that single-walled carbon nanotube of the argon gas as hollow ball-shape made from annealing medium is used in embodiment 1
Microballoon carbon-based supports, pattern handling is carried out with PDDA and PSS, then carries out Ni（NO3）2And Fe（NO3）3It is modified, when single wall carbon is received
Mitron solid and potassium permanganate solid masses ratio are 1;4, and rare earth nitrades and sodium tungstate mol ratio are 3:When 1, PARA FORMALDEHYDE PRILLS(91,95)
Adsorption effect is best；Embodiment 2 arrives embodiment 10, changes the mass ratio of single-walled carbon nanotube solid and potassium permanganate solid respectively
Example, PARA FORMALDEHYDE PRILLS(91,95) catalytic performance have different degrees of influence, are 1 in ratio：Almost all converts when 4；Reference examples 1 change alkali
Liquid is formed, and adsorption effect is decreased obviously, and illustrates that the base strength of hydrogen peroxide produces considerable influence to carbon-based supports structure；Reference examples
2 and reference examples 3 using single liquid modification silicon dioxide microsphere template, catalytic effect is also bad, says the dual modifications of PDDA and PSS
Catalytic performance is had a major impact；Reference examples 4 and example 5 change anneal gas medium, and catalytic conversion is decreased obviously, and illustrate lazy
Property argon annealed is critically important to catalyst preparation, and reference examples 6 and reference examples 8 change native nitrate and sodium tungstate molar ratio,
Absorption property is deteriorated, and illustrates when molar ratio is 3：Effect is best when 1；Reference examples 9 and example 10, only add Ni（NO3）2And Fe
（NO3）3A kind of metal salt therein, overall catalytic effect is all poor, illustrates only two kinds of metal salt synergies, catalysis effect
Fruit can just improve；Therefore using the single-walled carbon nanotube microballoon carbon-based supports of hollow ball-shape, it is modified by metal salt solution, with argon
Gas has good clean-up effect as CNT formaldehyde purifying agent made from annealing medium.
Claims (5)
1. a kind of protective mask, it is characterised in that it includes mask body, described mask body, described mask body sheet
Body includes outer layer middle level and internal layer, and the centre of outer layer has a support frame, described support frame both sides have upper ventilative seam and
Lower ventilative seam, described upper ventilative seam and lower ventilative seam also have air-vent, and the both sides of described mask body have fixing band.
2. a kind of protective mask according to claim 1, it is characterised in that the both sides of described mask body respectively have
Two fixing bands, are symmetrical arranged up and down.
3. a kind of protective mask according to claim 1, it is characterised in that described outer layer is barrier layer, and middle level is net
Change filter layer, internal layer is contact layer.
4. a kind of protective mask according to claim 1, it is characterised in that described cleaned filtering layer uses nanometer air
The double modification single-walled carbon nanotube formaldehyde composite catalyzing purification particles of scavenging material, specially Ni/Fe-PDDA/PSS.
5. a kind of protective mask according to claim 1, it is characterised in that the contact layer of described internal layer uses nonwoven
Cloth material.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104305591A (en) * | 2014-09-23 | 2015-01-28 | 西安交通大学医学院第一附属医院 | Nano-structure-based anti-haze mask with filtration and adsorption double functions |
| CN205040697U (en) * | 2015-09-28 | 2016-02-24 | 上海舒爽材料科技有限公司 | Cartoon type gauze mask |
| CN205923001U (en) * | 2016-05-13 | 2017-02-08 | 姚爱军 | Disposable gauze mask with longitudinal support body |
| CN106422522A (en) * | 2015-08-11 | 2017-02-22 | 清华大学 | Silk nano-fiber-based air filtering device |
| CN107041581A (en) * | 2017-06-19 | 2017-08-15 | 广西纺源医疗科技有限公司 | Disposable Chinese medicine medical mask and preparation method thereof |
-
2017
- 2017-09-08 CN CN201710805893.0A patent/CN107373822B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104305591A (en) * | 2014-09-23 | 2015-01-28 | 西安交通大学医学院第一附属医院 | Nano-structure-based anti-haze mask with filtration and adsorption double functions |
| CN106422522A (en) * | 2015-08-11 | 2017-02-22 | 清华大学 | Silk nano-fiber-based air filtering device |
| CN205040697U (en) * | 2015-09-28 | 2016-02-24 | 上海舒爽材料科技有限公司 | Cartoon type gauze mask |
| CN205923001U (en) * | 2016-05-13 | 2017-02-08 | 姚爱军 | Disposable gauze mask with longitudinal support body |
| CN107041581A (en) * | 2017-06-19 | 2017-08-15 | 广西纺源医疗科技有限公司 | Disposable Chinese medicine medical mask and preparation method thereof |
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