CN107927943A - A kind of air-prevention haze special mask note and preparation method - Google Patents
A kind of air-prevention haze special mask note and preparation method Download PDFInfo
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- CN107927943A CN107927943A CN201711336413.7A CN201711336413A CN107927943A CN 107927943 A CN107927943 A CN 107927943A CN 201711336413 A CN201711336413 A CN 201711336413A CN 107927943 A CN107927943 A CN 107927943A
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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
- A41D13/1192—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with antimicrobial agent
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D27/00—Details of garments or of their making
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B23/00—Filters for breathing-protection purposes
- A62B23/02—Filters for breathing-protection purposes for respirators
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B7/00—Respiratory apparatus
- A62B7/10—Respiratory apparatus with filter elements
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2400/00—Functions or special features of garments
- A41D2400/70—Removability
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- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/30—Antimicrobial, e.g. antibacterial
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Abstract
The invention belongs to the technical field of haze material, there is provided a kind of air-prevention haze special mask note and preparation method.Diatomite in powder, tourmaline powder, lotus leaf powder, tea leaf powder are made into powder by this method, add coupling agent and improve surface-active, then it is mixed and added into water with Aloe Vera Gel, chitosan, alginic acid, glue is made to coagulate, finally obtained glue is coagulated coated on biomass silk face, it is packaged to can obtain haze special mask note.Compared with conventional method, the haze special mask note of the preparation of the present invention, the microfine particulate matter such as PM2.5 in air filtering can not only be crossed well, and haze effect is good, and has sterilization, and whole preparation process is simple, process is simple, and cost is relatively low, and quality is preferable, prepare and extremely easy to use, easy to promote the use of.
Description
Technical field
The invention belongs to the technical field of haze material, there is provided a kind of air-prevention haze special mask note and preparation side
Method.
Background technology
The energy is caused rapidly to consume recently as industrialization and urbanization drastically, population high aggregation, ecological environment
Destroy, all hidden the foreshadowing for the formation of haze weather.Mist is natural weather phenomenon, the steam generative forces of heaven and earth in air.Although made with dust
For the nuclei of condensation, but it is overall nontoxic；It is relatively wet that the core substance of haze is suspended in material, the air such as cigarette in air, dust
Degree is less than 80%, yellowish.Gas can be directly entered and be adhered in human body lower respiratory tract and the lobe of the lung, have wound to health
Evil.The formation of haze weather is mainly artificial environmental pollution, and along with temperature is low, wind is small etc., natural conditions cause pollutant
It is not easy to spread.Air quality has been seriously affected at present, common people's health has been endangered, triggers traffic accident, and then endangers economic society
Sustainable development.
Haze weather as a kind of environmental pollution even environmental hazard, its harm brought be also it is many, specifically
Performance is as follows：First, haze phenomenon can cause the body of people, mental health as a kind of disastrous weather warning forecast
Endanger, the pollutant in haze can not only influence respiratory tract and cause myocardial infarction, myocardial ischemia or damage etc., also can be to people
Mental health brings harm, such as easily makes one mental depression, produces downbeat mood.It is when anything crops up even easily out of control.Second, haze
When weather occurs, visual field visibility is relatively low, so being easy to trigger traffic jam, traffic accident is caused, not only to the friendship of people
Pass-out row brings influence, while will also result in certain economic loss.3rd, haze weather also can indirectly influence crops
Growth, causes crop production reduction, and directly affect the quality and yield of crops.4th, haze weather is easily formed acid rain,
Hazard analysis and HACCP is extremely serious.
Therefore, the prevention to haze is very urgent, perfect legislation and optimizes the administrative ability of government, it is necessary to which the whole people join
With, corporation governance, pollution sources are controlled, strengthen the prediction of haze weather, strengthen urban afforestation.On the other hand, pin
It is also very urgent, such as air filter, haze mask, wherein haze mouth to technical measures such as haze filtering, removings
Cover can cross the particulate matter in air filtering well, improve the smoothness of wearer's breathing and the comfort level of body and mind.
At present certain effect has been achieved in terms of haze filtering technique, especially haze mask both at home and abroad.It is wherein high
Roc et al. has invented a kind of haze antiseptic face mask and preparation method（Chinese invention patent application number 201510114477.7）, this
Mask made from invention includes cover body, and cover body is equipped with filter disc bag, isolation filter disc is housed, isolation filter disc is by non-woven fabrics in filter disc bag
Layer, carbon fiber layer and sterilizing layer are formed, and sterilizing layer middle part is gauze in gauze dual coating titanium dioxide chitosan film, specific step
Rapid is configuration TiO2Colloidal sol, configuration chitosan solution glue, magnetic agitation, ultrasonic oscillation, coating film forming, making filter disc.In addition,
Liu Zhiyi has invented a kind of Novel anti-mist haze mask（Chinese invention patent application number 201510988291.4）, its mask outer layer or
Inner core has an adhesive phase absorbing sheet, and adhesive phase absorbing sheet is host material by non-woven fabrics, cotton or silk, coated bonding
Agent, and cover reticular fibre composition.
As it can be seen that there is can not filter effectively to remove PM2.5 in air for haze mask of the prior art or filter
Fine particle, and without sterilization, it is of poor quality, prepare it is more complicated, it is inconvenient for use the shortcomings of.
The content of the invention
For such case, it is proposed that a kind of air-prevention haze special mask note and preparation method, mainly by diatom
Soil, tourmaline, lotus leaf powder, tea leaf powder and Aloe Vera Gel, chitosan, alginic acid are uniformly dispersed to form hydrogel in water, then apply
Spread on biomass silk face surface and obtain a kind of mask note, when use removes from the package is pasted onto mask outer layer, reaches filtering
Subparticle, the purpose of sterilization, which is disposable products, is directly abandoned after use.Mask made from the method it is notable
Advantage is that filtering subparticle is obvious, while has the purpose of sterilizing, has reached good air purification effect.
To achieve the above object, concrete technical scheme of the present invention is as follows：
A kind of preparation method of air-prevention haze special mask note, diatomite in powder, tourmaline powder, lotus leaf powder, tea leaf powder are made into
Powder, adds coupling agent and improves surface-active, be then mixed and added into water with Aloe Vera Gel, chitosan, alginic acid, glue is made
It is solidifying, finally obtained glue is coagulated coated on biomass silk face, it is packaged to can obtain haze special mask note；Prepare
Comprise the following steps that：
（1）Diatomite in powder, tourmaline powder, lotus leaf powder, tea leaf powder are made into mixed-powder by certain parts by weight, add coupling
Agent, is then mixed in high-speed mixer with certain temperature and rotating speed, makes the chemical bond of close inorganic one end of coupling agent
Combined with mixed-powder, improve the surface-active of powder, obtain high active powder；Wherein, 53~62 parts by weight of diatomite in powder, electricity
20~25 parts by weight of gas mountain flour, 8~10 parts by weight of lotus leaf powder, 10~12 parts by weight of tea leaf powder；
（2）By step（1）Gained high active powder is mixed with Aloe Vera Gel, chitosan, alginic acid, is then added to the water, and is stirred
It is scattered that hydrogel is made；Wherein, 43~48 parts by weight of high active powder, 10~15 parts by weight of Aloe Vera Gel, 8~13 weight of chitosan
Part, 7~12 parts by weight of alginic acid, 22~32 parts by weight of water；
（3）By step（2）Obtained hydrogel be coated on biomass silk face surface, formed uniform film layer, it is packaged to obtain the final product
Haze special mask note；In use, packaging is removed, mask note is pasted on mask outer layer, you can realize fine of filtering
Grain and the double action of sterilization.
Preferably, step（1）The diatomite in powder porosity is 85~95%, and grain diameter is 600~1000 mesh.
Preferably, step（1）The tourmaline powder is at least one of fiber tourmaline or crystal tourmaline through crushing
It is made, porosity is 90~95%, and grain diameter is 800~1200 mesh.
Preferably, step（1）The lotus leaf powder is in Hunan lotus seeds, Jian Lian, blinds lotus, pake purpke, kardiseed lotus or the sub- lotus of white flower
At least one cauline leaf through crush be made, porosity be 85~90%, grain diameter is 500~1000 mesh.
Preferably, step（1）The tea leaf powder is at least one in green tea, black tea, oolong tea, white tea, yellow tea or black tea
Kind is made through crushing, and porosity is 80~88%, and grain diameter is 600~1200 mesh.
Preferably, step（1）The coupling agent is silane coupling agent, can be vinyltriethoxysilane, vinyl three
Methoxy silane, γ-aminopropyltrimethoxysilane, 3- aminopropyl trimethoxysilanes, dichloromethyl triethoxysilane, benzene
At least one of amine methyltriethoxysilane or phenyltrimethoxysila,e, addition for mixed-powder quality 0.5~
1%。
Preferably, step（1）The heating-up temperature of the mixed at high speed is 80~90 DEG C, and rotating speed is 120~150r/min, is mixed
The conjunction time is 20~30min.
Preferably, step（2）The Aloe Vera Gel is made for the extraction of fresh aloe leaf, selects Aloearboescens, the Chinese aloe aloe, wood
At least one of aloe, stripe aloe vera, hepatic aloe, emerald aloe or A.saponaria are filed, viscosity is 1.2~1.4Pas.
Preferably, step（3）The thickness of the hydrogel film layer is 0.5~2mm.
The air-prevention haze special mask note being prepared by the above method.
Diatomite surface has the substantial amounts of, micropore of ordered arrangement, so that diatomite has very big specific surface area, and
And substantial amounts of silicone hydroxyl is distributed with diatomaceous surface and internal surface of hole；These silicone hydroxyls dissociate H in aqueous+, so that
Diatomite particle is shown certain surface elecrtonegativity, thus can effectively adsorb the particulate matter in air；The crystalline substance of tourmaline
It is acted on body structures shape with permanent electrode, is formed electrostatic field, can be produced anion, emitting far-infrared, and has table
Face activity and absorption property, thus all kinds of particulate matters in adsorbable air, and it is beneficial to health；Lotus leaf powder is equal with tea leaf powder
Contain the component very useful to human body.Aloe Vera Gel, chitosan and alginic acid have preferable adhesive effect, be able to will be mixed in colloid
Close powder-stuck together, and with the stickup in biomass silk face, and simultaneously itself have sterilization.The thus present invention
It is uniformly dispersed to form water-setting in water using diatomite, tourmaline, lotus leaf powder, tea leaf powder and Aloe Vera Gel, chitosan, alginic acid
Glue.
By haze mask note prepared by the present invention and cotton mask, medical non-woven lint face mask and active carbon mask
PM2.5 filterabilities, inspiratory resistance, expiratory resistance and bacteriostasis rate are contrasted, as shown in table 1, it is seen then that the present invention prepares antifog
Haze mask note can effectively filter PM2.5 particles, good sterilization effect.
Table 1：
The present invention provides a kind of air-prevention haze special mask note and preparation method, compared with prior art, its spy protruded
Point and excellent effect are：
1. haze special mask note prepared by the present invention, obvious to the microfine particulate matter filter effect such as PM2.5 in air.
2. the preparation method of the present invention, glue made from mixed-powder, which congeals, sterilization, and practicality is preferable.
3. the preparation method of the present invention, obtained glue is coagulated to be bonded closely with biomass silk face, and mask note quality is preferable,
And comfortable wearing, breathing are smooth.
4. the preparation method of the present invention, raw material are easy to get, process is simple, prepares and extremely easy to use.
Embodiment
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention
Scope be only limitted to following example.Without departing from the idea of the above method of the present invention, according to ordinary skill
The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
58kg diatomites in powder, 20kg tourmaline powders, 10kg lotus leaf powders, 12kg tea leaf powders are made into mixed-powder, add 0.75kg
Anilinomethyl triethoxysilane, is then mixed in high-speed mixer with the rotating speed of 80 DEG C of temperature and 150r/min
25min, makes the chemical bond of close inorganic one end of coupling agent be combined with powder, improves the surface-active of powder, obtain high activity powder
End；High active powder obtained by 43kg is mixed with 10kg Aloe Vera Gels, 8kg chitosans, 12kg alginic acids, then adds 27kg's
In water, and it is dispersed with stirring and hydrogel is made；Obtained hydrogel is coated on to the surface in biomass silk face, forming thickness is
The uniform film layer of 1mm, it is packaged up to haze special mask note；In use, packaging is removed, mask note is pasted on mask
Outer layer, you can realize the double action of filtering subparticle and sterilization；
Mask note prepared by embodiment 1, test PM2.5 filterabilities, inspiratory resistance, expiratory resistance and bacteriostasis rate, obtained result
As shown in table 2.
Embodiment 2
62kg diatomites in powder, 20kg tourmaline powders, 8kg lotus leaf powders, 10kg tea leaf powders are made into mixed-powder, add 0.75kg3-
Aminopropyl trimethoxysilane, is then mixed in high-speed mixer with the rotating speed of 90 DEG C of temperature and 150r/min
30min, makes the chemical bond of close inorganic one end of coupling agent be combined with powder, improves the surface-active of powder, obtain high activity
Powder；High active powder obtained by 48kg is mixed with 10kg Aloe Vera Gels, 8kg chitosans, 7kg alginic acids, then adds 27kg
Water in, and be dispersed with stirring and hydrogel be made；Obtained hydrogel is coated on to the surface in biomass silk face, forming thickness is
The uniform film layer of 2mm, it is packaged up to haze special mask note；In use, packaging is removed, mask note is pasted on mask
Outer layer, you can realize the double action of filtering subparticle and sterilization；
Mask note prepared by embodiment 2, test PM2.5 filterabilities, inspiratory resistance, expiratory resistance and bacteriostasis rate, obtained result
As shown in table 2.
Embodiment 3
60kg diatomites in powder, 22kg tourmaline powders, 8kg lotus leaf powders, 10kg tea leaf powders are made into mixed-powder, add 0.75kg
γ-aminopropyltrimethoxysilane, is then mixed in high-speed mixer with the rotating speed of 85 DEG C of temperature and 145r/min
20min, makes the chemical bond of close inorganic one end of coupling agent be combined with powder, improves the surface-active of powder, obtain high activity powder
End；High active powder obtained by 43kg is mixed with 12kg Aloe Vera Gels, 10kg chitosans, 12kg alginic acids, then adds 23kg
Water in, and be dispersed with stirring and hydrogel be made；Obtained hydrogel is coated on to the surface in biomass silk face, forming thickness is
The uniform film layer of 1.5mm, it is packaged up to haze special mask note；In use, packaging is removed, mask note is pasted on mouth
Cover outer layer, you can realize the double action of filtering subparticle and sterilization；
Mask note prepared by embodiment 3, test PM2.5 filterabilities, inspiratory resistance, expiratory resistance and bacteriostasis rate, obtained result
As shown in table 2.
Embodiment 4
55kg diatomites in powder, 25kg tourmaline powders, 9kg lotus leaf powders, 11kg tea leaf powders are made into mixed-powder, add 0.75kg benzene
Base trimethoxy silane, then carries out mixing 22min with the rotating speed of 82 DEG C of temperature and 130r/min in high-speed mixer, makes
The chemical bond of close inorganic one end of coupling agent is combined with powder, is improved the surface-active of powder, is obtained high active powder；By 45kg
The high active powder of gained is mixed with 10kg Aloe Vera Gels, 10kg chitosans, 10kg alginic acids, is then added in the water of 25kg, and
It is dispersed with stirring and hydrogel is made；Obtained hydrogel is coated on to the surface in biomass silk face, it is the uniform of 1mm to form thickness
Film layer, it is packaged up to haze special mask note；In use, packaging is removed, mask note is pasted on mask outer layer, you can
Realize the double action of filtering subparticle and sterilization；
Mask note prepared by embodiment 4, test PM2.5 filterabilities, inspiratory resistance, expiratory resistance and bacteriostasis rate, obtained result
As shown in table 2.
Embodiment 5
60kg diatomites in powder, 21kg tourmaline powders, 9kg lotus leaf powders, 10kg tea leaf powders are made into mixed-powder, add 0.75kg second
Alkenyl trimethoxy silane, then carries out mixing 28min in high-speed mixer with the rotating speed of 85 DEG C of temperature and 140r/min,
The chemical bond of close inorganic one end of coupling agent is combined with powder, improve the surface-active of powder, obtain high active powder；Will
High active powder obtained by 44kg is mixed with 10kg Aloe Vera Gels, 8kg chitosans, 8kg alginic acids, is then added in the water of 30kg,
And it is dispersed with stirring and hydrogel is made；Obtained hydrogel is coated on to the surface in biomass silk face, it is 0.5mm's to form thickness
Uniform film layer, it is packaged up to haze special mask note；In use, packaging is removed, mask note is pasted on mask outer layer,
The double action of filtering subparticle and sterilization can be achieved；
Mask note prepared by embodiment 5, test PM2.5 filterabilities, inspiratory resistance, expiratory resistance and bacteriostasis rate, obtained result
As shown in table 2.
Embodiment 6
55kg diatomites in powder, 25kg tourmaline powders, 8kg lotus leaf powders, 12kg tea leaf powders are made into mixed-powder, add 0.75kg second
Alkenyl triethoxysilane, then carries out mixing 20min in high-speed mixer with the rotating speed of 80 DEG C of temperature and 150r/min,
The chemical bond of close inorganic one end of coupling agent is combined with powder, improve the surface-active of powder, obtain high active powder；Will
High active powder obtained by 45kg is mixed with 10kg Aloe Vera Gels, 11kg chitosans, 9kg alginic acids, is then added in the water of 25kg,
And it is dispersed with stirring and hydrogel is made；Obtained hydrogel is coated on to the surface in biomass silk face, it is the equal of 2mm to form thickness
Even film layer, it is packaged up to haze special mask note；In use, packaging is removed, mask note is pasted on mask outer layer, i.e.,
The double action of filtering subparticle and sterilization can be achieved；
Mask note prepared by embodiment 6, test PM2.5 filterabilities, inspiratory resistance, expiratory resistance and bacteriostasis rate, obtained result
As shown in table 2.
Comparative example 1
In mixed-powder preparation process, diatomite in powder is not added with, other preparation conditions are consistent with embodiment 6；
Mask note prepared by comparative example 1, test PM2.5 filterabilities, inspiratory resistance, expiratory resistance and bacteriostasis rate, obtained result
As shown in table 2.
Comparative example 2
In hydrogel preparation process, Aloe Vera Gel is not added with, other preparation conditions are consistent with embodiment 6；
Mask note prepared by comparative example 2, test PM2.5 filterabilities, inspiratory resistance, expiratory resistance and bacteriostasis rate, obtained result
As shown in table 2.
Table 2：
Claims (10)
1. a kind of preparation method of air-prevention haze special mask note, it is characterised in that by diatomite in powder, tourmaline powder, lotus leaf
Powder, tea leaf powder are made into powder, add coupling agent and improve surface-active, are then mixed and added into Aloe Vera Gel, chitosan, alginic acid
Water, is made glue and coagulates, and finally coagulates obtained glue coated on biomass silk face, packaged to can obtain haze dedicated port
Cover note, preparation comprise the following steps that：
（1）Diatomite in powder, tourmaline powder, lotus leaf powder, tea leaf powder are made into mixed-powder by certain parts by weight, add certain matter
The coupling agent of amount ratio, is then mixed in high-speed mixer with certain temperature and rotating speed, makes the close inorganic of coupling agent
The chemical bond of one end is combined with mixed-powder, is improved the surface-active of powder, is obtained high active powder；Wherein, diatomite in powder 53
~62 parts by weight, 20~25 parts by weight of tourmaline powder, 8~10 parts by weight of lotus leaf powder, 10~12 parts by weight of tea leaf powder；
（2）By step（1）Gained high active powder is mixed with Aloe Vera Gel, chitosan, alginic acid by certain parts by weight, Ran Houjia
In the water for entering certain part by weight, and it is dispersed with stirring and hydrogel is made；Wherein, 43~48 parts by weight of high active powder, Aloe Vera Gel 10
~15 parts by weight, 8~13 parts by weight of chitosan, 7~12 parts by weight of alginic acid, 22~32 parts by weight of water；
（3）By step（2）Obtained hydrogel be coated on biomass silk face surface, formed uniform film layer, it is packaged to obtain the final product
Haze special mask note；In use, packaging is removed, mask note is pasted on mask outer layer, you can realize fine of filtering
Grain and the double action of sterilization.
A kind of 2. preparation method of air-prevention haze special mask note according to claim 1, it is characterised in that：Step（1）
The diatomite in powder porosity is 85~95%, and grain diameter is 600~1000 mesh.
A kind of 3. preparation method of air-prevention haze special mask note according to claim 1, it is characterised in that：Step（1）
The tourmaline powder is made at least one of fiber tourmaline or crystal tourmaline through crushing, and porosity is 90~95%,
Grain particle diameter is 800~1200 mesh.
A kind of 4. preparation method of air-prevention haze special mask note according to claim 1, it is characterised in that：Step（1）
The lotus leaf powder is the cauline leaf of at least one of Hunan lotus seeds, Jian Lian, blinds lotus, pake purpke, kardiseed lotus or the sub- lotus of white flower through crushing
It is made, porosity is 85~90%, and grain diameter is 500~1000 mesh.
A kind of 5. preparation method of air-prevention haze special mask note according to claim 1, it is characterised in that：Step（1）
The tea leaf powder is made at least one of green tea, black tea, oolong tea, white tea, yellow tea or black tea through crushing, porosity 80
~88%, grain diameter is 600~1200 mesh.
A kind of 6. preparation method of air-prevention haze special mask note according to claim 1, it is characterised in that：Step（1）
The coupling agent is silane coupling agent, is preferably vinyltriethoxysilane, vinyltrimethoxysilane, γ-aminopropyl
Trimethoxy silane, 3- aminopropyl trimethoxysilanes, dichloromethyl triethoxysilane, anilinomethyl triethoxysilane or
At least one of phenyltrimethoxysila,e, addition are the 0.5~1% of mixed-powder quality.
A kind of 7. preparation method of air-prevention haze special mask note according to claim 1, it is characterised in that：Step（1）
The heating-up temperature of the mixed at high speed is 80~90 DEG C, and rotating speed is 120~150r/min, and incorporation time is 20~30min.
A kind of 8. preparation method of air-prevention haze special mask note according to claim 1, it is characterised in that：Step（2）
The Aloe Vera Gel is made for the extraction of fresh aloe leaf, selects Aloearboescens, the Chinese aloe aloe, aloe hutmilis Miller, stripe aloe vera, Hepatic reed
At least one of luxuriant growth, emerald aloe or A.saponaria, viscosity are 1.2~1.4Pas.
A kind of 9. preparation method of air-prevention haze special mask note according to claim 1, it is characterised in that：Step（3）
The thickness of the hydrogel film layer is 0.5~2mm.
10. the air-prevention haze special mask note that any one of claim 1~9 preparation method is prepared.
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Cited By (4)
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| CN108815732A (en) * | 2018-08-29 | 2018-11-16 | 陈奕齐 | The application and a kind of haze-proof mask filter membrane and its preparation method and application of a kind of tomato skin in haze-proof mask filter membrane |
| CN109233776A (en) * | 2018-08-29 | 2019-01-18 | 江苏师范大学 | A kind of preparation method of novel Mannich base quaternary ammonium salt corrosion inhibitor |
| CN109985471A (en) * | 2019-04-25 | 2019-07-09 | 吉首大学 | A kind of tea polyphenol nano is except haze particle solution and its preparation method and purposes |
| WO2019227250A1 (en) * | 2018-05-30 | 2019-12-05 | Liu Yaxuan | Liquid mask plaster and anti-haze and anti-bacterial mask |
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