CN103704908B - Anti-fine particle mouth mask of a kind of chitosan-containing and nano zine oxide and preparation method thereof - Google Patents
Anti-fine particle mouth mask of a kind of chitosan-containing and nano zine oxide and preparation method thereof Download PDFInfo
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- CN103704908B CN103704908B CN201410017829.2A CN201410017829A CN103704908B CN 103704908 B CN103704908 B CN 103704908B CN 201410017829 A CN201410017829 A CN 201410017829A CN 103704908 B CN103704908 B CN 103704908B
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Abstract
The invention discloses anti-fine particle mouth mask of a kind of chitosan-containing and nano zine oxide and preparation method thereof.Anti-fine particle mouth mask of the present invention is made up of four layer materials, wherein comprises two one functional layer, is the degreasing cotton gauze functional layer of activated carbon non-woven layer of cloth, chitosan-containing and nano zine oxide respectively.Mouth mask of the present invention has absorption fine particle, antibacterial bacteriostatic, effect of eliminating the unusual smell, effectively can realize intercepting fine particle to enter human body, prevent from entering the object that the microorganism of mouth mask and organic pollution cause secondary pollution, there is good permeability simultaneously.The preparation method of mouth mask of the present invention is simple, and material source is extensive, is applicable to suitability for industrialized production.
Description
Technical field
The invention belongs to amenities preparing technical field, be specifically related to anti-fine particle mouth mask of a kind of chitosan-containing and nano zine oxide and preparation method thereof.
Background technology
Nearly 1 year, along with the haze weather of continuation has in various degree appearred in multiple provinces and cities of China, PM2.5 and harm rapidly by the public cognition.PM2.5, refers to that in surrounding air, aerodynamics equivalent diameter is less than or equal to the particle of 2.5 microns, also claims to enter lung particle.In February, 2013, the Chinese of PM2.5 is " fine particle " by the definite designation of national scientific and technical terminology validation board.Although fine particle is the component that in earth atmosphere composition, content is little, but because its particle diameter is little, surface area is large, active strong, adsorptivity is strong, easily attach poisonous and harmful substances, and grow, fed distance is far away the time of staying in an atmosphere, thus the impact of fine particle on health and atmosphere quality is very large.
Compare the particle that particle diameter is larger, the harm of fine particle to health is larger.Generally speaking, the particle of diameter more than 10 microns, can be blocked in the outside of nose; The particle of diameter between 2.5 microns to 10 microns can enter respiratory tract, but is partly excreted along with spitting, sneezing; And the fine particle of diameter within 2.5 microns, but can pass through lower respiratory tract smoothly, even go deep into alveolar and cardiovascular system, serious harm health.Research report is had to claim, pollution fine particle in Long Term Contact air, not only can cause breathing discomfort and Respiratory symptoms, increase the weight of existing respiratory disease and infringement lung tissue, also can bring out COPD and occur scabies secondary infection, finally causing the heart and lung diseases death rate to increase.
2013, the southern provinces and cities such as the serious haze weather of continuation of China even spreads to Shanghai from traditional north " severely afflicated area ", Jiangsu, Zhejiang.Pollute for tackling increasingly serious fine particle, general public shows great enthusiasm to the various measures preventing fine particle from entering human body.Mouth mask is the protection assembling that people the most often wear when going out.But existing routine is medical and civilian mouth mask effectively can not resist fine particle, because they are mostly based on non-woven fabrics, or similar large aperture fiber is made, small fine particle still can enter nasal cavity through mouth mask, does not substantially have the protective action to fine particle.And other protective mask professional is as N95 type mouth mask, although the effect of filtering fine particle is comparatively obvious, because its quality is thick, poor air permeability, wear and easily cause expiratory dyspnea afterwards; Particularly the special population such as children, the elderly, the people suffering from respiratory disease and angiocardiopathy should the mouth mask of blocked up, the poor air permeability of careful selection quality.
Summary of the invention
The object of the present invention is to provide anti-fine particle mouth mask of a kind of chitosan-containing and nano zine oxide and preparation method thereof.Respirator structure of the present invention is simple, and degerming functions is excellent, effectively can prevent fine particle from sucking human body, be conducive to health.
The anti-fine particle mouth mask of chitosan-containing of the present invention and nano zine oxide, it comprises cover body, left ear band and auris dextra band, described mask body periphery is provided with cover body frame, four layers of filler are provided with in described cover body frame, from outside to inside successively: ground floor is nonwoven layer, the second layer is activated carbon non-woven layer of cloth, and third layer is the degreasing cotton gauze functional layer of chitosan-containing and nano zine oxide, and the 4th layer is nonwoven layer.
The deacetylation of described shitosan is 90-95%, and molecular weight is 500-1000kDa.
The particle diameter of described nano zine oxide is 10-100nm.
The grammes per square metre of the degreasing cotton gauze of described non-woven fabrics, active carbon nonwoven fabric, chitosan-containing and nano zine oxide is 15-30g/m
2, thickness is 0.5-2mm, and porosity is greater than 80%.
Described cover body is also provided with nose cup at corresponding bridge of the nose position, and described cover body is provided with chin protective cover at corresponding chin position.
Described nose cup is made up of plasticity elastomeric material, and cover body frame is made up of elastomeric material, and the ear band of described mouth mask is made up of elastic woven material.
Described left and right ear band is provided with the snak link controlling ear strip length respectively, the tail end of described left ear band and auris dextra band is equipped with the limited location snap ring preventing snak link from departing from ear band, the limited location snap ring of described left ear band or auris dextra band is provided with uncinus, and another ear band is provided with ring with matching.
Present invention also offers the preparation method of the anti-fine particle mouth mask of chitosan-containing and nano zine oxide, comprise the following steps:
(1) taking the shitosan that deacetylation is 90-95%, molecular weight is 500-1000kDa is dissolved in the acetic acid solution of 0.5-1%, and preparation mass volume ratio is the chitosan solution of 0.5-5%;
(2) zinc nitrate aqueous solution that molar concentration is 1-5M is prepared, slowly add NaOH solution and constantly stir to obtain zinc hydroxide white precipitate, backward its of extraction precipitation cleaning adds ammoniacal liquor and be constantly stirred to can't see deposit seed just, solution is translucent state, adds a small amount of distilled water afterwards and to move to closed container mark for subsequent use;
(3) be immersed in by degreasing cotton gauze in described chitosan solution, shifted 1-2 hour in the sodium hydroxide solution being immersed in 0.1% after 4-24 hour, after rinsing with water, air drying obtains the degreasing cotton gauze containing shitosan;
(4) the shitosan degreasing cotton gauze of step (3) gained is immersed in the zinc ammonia solution of (2) gained, used microwave treatment 5-10 minute afterwards, gained absorbent cotton mixed solution is put into reactor 140-160 DEG C crystallization, products therefrom is dissolved in distilled water, Ultrasonic Cleaning removes the residue on surface, to remove after moisture the degreasing cotton gauze functional layer that namely 60-80 DEG C of oven drying obtain chitosan-containing and nano zine oxide;
(5) degreasing cotton gauze functional layer, the nonwoven layer of the nonwoven layer, activated carbon non-woven layer of cloth, chitosan-containing and the nano zine oxide that utilize hot melt tape edge technology order to be stacked are sewed up, and then cover body and ear knot with seam are got up.
The temperature of described hot melt tape edge is 110-185 DEG C, and hot melt pressure is 0.3-1MPa.Described shitosan is crab shell shitosan.
Compared with the mouth mask in existing upper technology, advantage of the present invention and beneficial effect are: because the particle majority in air is electronegative, and shitosan is a kind of positively charged natural macromolecular material, there is good bioadhesive, biocompatibility, biodegradability, nontoxicity and anti-microbial property, can not only suspended particulate substance effectively in absorbed air, the effect of restraining and sterilizing bacteria can also be played.Nano zine oxide is a kind of polyfunctional new inorganic material, and its particle diameter is between 1-100 nanometer.Nano zine oxide owing to having the double grading of nano material and common zinc oxide, thus has more excellent antibacterial, bacteriostasis property, and nontoxic, tasteless, non-stimulated to skin, security is high.Active carbon is a kind of porous carbon containing matter, has very strong adsorption capacity.
Active carbon has adsorptivity but does not have antibiotic property, if alone active carbon is as the functional layer of mouth mask, stay the fine particle in mouth mask cover body due to the absorption of active carbon, a large amount of microorganism of its surface attachment and organic pollution, easily cause the secondary pollution of mouth mask cover body.Therefore add the shitosan that existing high-quality adsorptivity has again good antibiotic property, in absorption fine particle, can coordinate with active carbon, reach 1 and add 1 effect being greater than 2; Mouth mask can be made again to possess bacteria resistance.While adding shitosan, add this nano inorganic anti-biotic material of nano zine oxide, greatly can strengthen the bacteria resistance of mouth mask, the microorganism and the organic pollution that prevent from entering mouth mask cause secondary pollution.Nano zine oxide is a kind of novel Multifunctional environment friendly antiseptic, there iing unique advantage with human survival and the closely-related photocatalysis Decomposition organic pollution of health and antibiosis, and there is good biocompatibility, security and long-lasting.
Mouth mask of the present invention adds shitosan, nano zine oxide and active carbon in the preparation simultaneously, effectively can adsorb fine particle, also there is effect that sterilization is antibacterial, decompose Small molecular organic pollution, eliminate the unusual smell, can effectively intercept fine particle and enter human body, the microorganism and the organic pollution that prevent from entering mouth mask cause secondary pollution.There is good permeability simultaneously, comfortable wearing.Bridge of the nose cover part and the covers edge of anti-fine particle mouth mask of the present invention are made up of elastic resin material, produce gap when can prevent from wearing in the both sides of the bridge of the nose and cover body surrounding, cover body and face are fitted good.And the preparation method of protective mask of the present invention is simple, prepares material source extensive, is applicable to large-scale industrial production, has good market application foreground.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of mouth mask of the present invention.
Fig. 2 is the layer structure schematic diagram containing the Antimicrobial protective mask of nano zine oxide and shitosan of the present invention.
Fig. 3 is respirator ear belt part-structure schematic diagram described in this practical information.
Fig. 4 is mask main body chin portion structural representation described in this practical information.
Wherein, 1-cover body; 2-cover body frame; 3-nose cup; 4-ear band, 5-snak link, 6-limited location snap ring, 7-uncinus, 8-ring, 9-chin protective cover, 11-nonwoven layer; 12-activated carbon non-woven layer of cloth; The degreasing cotton gauze functional layer of 13-chitosan-containing and nano zine oxide; 14-nonwoven layer.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described, but content of the present invention is not only confined to the following examples.
The present invention's primary raw material used is commercially available crab shell shitosan (deacetylation 95%, molecular weight is at 500-1000kDa), zinc nitrate, NaOH, acetic acid, ammoniacal liquor, medical absorbent cotton gauze and non-woven fabrics.It is pure that chemical reagent is analysis.
Embodiment 1
The anti-fine particle mouth mask of chitosan-containing of the present invention and nano zine oxide comprises cover body 1 and the left ear band of ear band 4(and auris dextra band), its overall structure schematic diagram as shown in Figure 1, described mask body periphery is provided with cover body frame 2, as shown in Figure 2,4 layers of filler are provided with in described cover body frame 2, from outside to inside successively: ground floor is nonwoven layer, the degreasing cotton gauze functional layer of second layer activated carbon non-woven layer of cloth, third layer chitosan-containing and nano zine oxide, the 4th layer is nonwoven layer; Can effectively intercept fine particle and enter human body, and prevent the secondary pollution entering mouth mask cover body bacterium, simultaneously good air permeability.
Described cover body is also provided with at corresponding bridge of the nose position can the nose cup 3 of available protecting nose.Described nose cup 3 and cover body frame 2 are made up of elastic resin material, and the ear band of described mouth mask is made up of elastic woven material.
Described left and right ear band is provided with the snak link 5 controlling ear strip length respectively, and the difference because of concrete user of service specifically can adjust the length of ear band.
The tail end of described left ear band and auris dextra band is equipped with the limited location snap ring 6 preventing snak link from departing from ear band.The limited location snap ring of described left ear band or auris dextra band is provided with uncinus 7, and another ear band is provided with ring 8 with matching.Ear band can be transferred to appropriate length, be buckled together and become headband.
Described cover body is provided with chin protective cover 9 at corresponding chin position, and described chin protective cover is curved, in order to wrap chin, prevents mouth mask to be moved and reduces the space between cover body and chin.
The preparation method of the anti-fine particle mouth mask of chitosan-containing of the present invention and nano zine oxide comprises the following steps:
(1) taking 0.5g crab shell shitosan (deacetylation is 90-95%, and molecular weight is 500-1000kDa), to be dissolved in 50ml volume ratio be in the acetic acid solution of 0.5%, and preparation mass volume ratio is the chitosan solution of 1%;
(2) 14.9gZn (NO is taken
3)
2be dissolved in 50ml distilled water, the zinc nitrate aqueous solution that molar concentration is 1M is made in abundant stirring, slowly add 0.1M NaOH solution and constantly stir to obtain zinc hydroxide white precipitate, backward its of extraction precipitation cleaning adds ammoniacal liquor and be constantly stirred to can't see deposit seed just, solution is translucent state, adds a small amount of distilled water afterwards and to move to closed container mark for subsequent use;
(3) be immersed in by degreasing cotton gauze in described chitosan solution, shifted in the sodium hydroxide solution being immersed in 0.1% 1 hour after 8 hours, after rinsing with water, air drying obtains the degreasing cotton gauze containing shitosan;
(4) the shitosan degreasing cotton gauze of step (3) gained is immersed in the zinc ammonia solution of (2) gained, used microwave treatment afterwards 5 minutes, gained absorbent cotton mixed solution is put into reactor 150 DEG C of crystallization, products therefrom is dissolved in distilled water, Ultrasonic Cleaning removes the residue on surface, to remove after moisture the degreasing cotton gauze functional layer that namely 70 DEG C of oven dryings obtain chitosan-containing and nano zine oxide;
(5) degreasing cotton gauze functional layer, the nonwoven layer of the nonwoven layer, activated carbon non-woven layer of cloth, chitosan-containing and the nano zine oxide that utilize hot melt tape edge technology order to be stacked are sewed up, and then cover body and ear knot with seam are got up.The temperature of hot melt tape edge is 110 DEG C, and hot melt pressure is 0.5MPa.
Embodiment 2
The preparation method of the anti-fine particle mouth mask of chitosan-containing of the present invention and nano zine oxide comprises the following steps:
(1) taking 2g crab shell shitosan is dissolved in the acetic acid solution of 50ml 1%, and preparation mass volume ratio is the chitosan solution of 4%;
(2) 59.5gZn (NO is taken
3)
26H
2o is dissolved in 100ml distilled water, 2M zinc nitrate aqueous solution is made in abundant stirring, slowly add 0.1M NaOH solution and constantly stir to obtain zinc hydroxide white precipitate, backward its of extraction precipitation cleaning adds ammoniacal liquor and be constantly stirred to can't see deposit seed just, solution is translucent state, adds a small amount of distilled water afterwards and to move to closed container mark for subsequent use;
(3) be immersed in by degreasing cotton gauze in step (1) described chitosan solution, shifted in the sodium hydroxide solution being immersed in 0.1% 2 hours after 12 hours, after rinsing with water, air drying obtains the degreasing cotton gauze containing shitosan;
(4) the shitosan degreasing cotton gauze of step (3) gained is immersed in the zinc ammonia solution of (2) gained, used microwave treatment afterwards 7 minutes, gained absorbent cotton mixed solution is put into reactor 155 DEG C of crystallization, products therefrom is dissolved in distilled water, Ultrasonic Cleaning removes the residue on surface, to remove after moisture the degreasing cotton gauze functional layer that namely 60 DEG C of oven dryings obtain chitosan-containing and nano zine oxide;
(5) degreasing cotton gauze functional layer, the nonwoven layer of the nonwoven layer, activated carbon non-woven layer of cloth, chitosan-containing and the nano zine oxide that utilize hot melt tape edge technology order to be stacked are sewed up, and then cover body and ear knot with seam are got up.The temperature of hot melt tape edge is 150 DEG C, and hot melt pressure is 0.8MPa.
There is the technical scheme be applied to by Nano Silver in mouth mask in prior art, the antibacterial mechanisms of Nano Silver is first to be attached on bacterial outer membrane, then causes damage through adventitia to bacterium.And the present invention adopts nano zine oxide to be used for carrying out composite with active carbon and shitosan, the Antibacterial Mechanism of described nano zine oxide is the coefficient result of photocatalysis and digestion of metallic ion, and the active oxygen namely utilizing nano zine oxide to produce causes the protein in microbial damage or zinc ion stripping and microbial body or nucleic acid functional group react and realize antibacterial.
The present invention determines to select the crab shell shitosan that deacetylation is 90-95%, molecular weight is 500-1000kDa, this kind of chitosan disinfectant function admirable through experiment, absorption finely ground particles that can be good, and has good biocompatibility with other components.Along with increasing of deacetylating degree of chitosan, primary amino radical on saccharide residue increases, with positive charge number increase, the shitosan within the scope of this deacetylation, adsorption effect significantly strengthens; Shitosan simultaneously in this molecular weight ranges, is combined better with degreasing cotton gauze, and is conducive to increasing adsorption area.Described Particle Size of Nanometer ZnO selects 10-100nm, and the nano zine oxide of this particle size range can increase specific area, convenient preparation.
The grammes per square metre of the degreasing cotton gauze of described non-woven fabrics, active carbon nonwoven fabric, chitosan-containing and nano zine oxide is 15-30g/m
2, thickness is 0.5-2mm, and porosity is greater than 80%, selects the cover material of this parameter area while guarantee adsorption effect, makes mouth mask good air permeability, wear light comfortable.
Above embodiment only in order to technical scheme of the present invention to be described, but not is limited; Although with reference to previous embodiment to invention has been detailed description, for the person of ordinary skill of the art, still can modify to the technical scheme described in previous embodiment, or equivalent replacement is carried out to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the present invention's technical scheme required for protection.
Claims (7)
1. the anti-fine particle mouth mask of a chitosan-containing and nano zine oxide, it comprises cover body, left ear band and auris dextra band, it is characterized in that, described mask body periphery is provided with cover body frame, be provided with four layers of filler in described cover body frame, from outside to inside successively: ground floor is nonwoven layer, the second layer is activated carbon non-woven layer of cloth, third layer is the degreasing cotton gauze functional layer of chitosan-containing and nano zine oxide, and the 4th layer is nonwoven layer;
The deacetylation of described shitosan is 90-95%, and molecular weight is 500-1000kDa;
The particle diameter of described nano zine oxide is 10-100nm;
The grammes per square metre of the degreasing cotton gauze of described non-woven fabrics, active carbon nonwoven fabric, chitosan-containing and nano zine oxide is 15-30g/m
2, thickness is 0.5-2mm, and porosity is greater than 80%.
2. the anti-fine particle mouth mask of chitosan-containing according to claim 1 and nano zine oxide, is characterized in that, described cover body is also provided with nose cup at corresponding bridge of the nose position, and described cover body is provided with chin protective cover at corresponding chin position.
3. the anti-fine particle mouth mask of chitosan-containing according to claim 2 and nano zine oxide, it is characterized in that, described nose cup is made up of plasticity elastomeric material, and cover body frame is made up of elastomeric material, and the ear band of described mouth mask is made up of elastic woven material.
4. the anti-fine particle mouth mask of chitosan-containing according to claim 1 and nano zine oxide, it is characterized in that, described left and right ear band is provided with the snak link controlling ear strip length respectively, and the tail end of described left ear band and auris dextra band is equipped with the limited location snap ring preventing snak link from departing from ear band; The limited location snap ring of described left ear band or auris dextra band is provided with uncinus, and another ear band is provided with ring with matching.
5. the preparation method of the anti-fine particle mouth mask of chitosan-containing according to claim 1 and nano zine oxide, it is characterized in that, it comprises the following steps:
(1) taking the shitosan that deacetylation is 90-95%, molecular weight is 500-1000kDa is dissolved in acetic acid solution, and preparation mass volume ratio is the chitosan solution of 0.5-5%;
(2) zinc nitrate aqueous solution that molar concentration is 1-5M is prepared, slowly add NaOH solution and constantly stir to obtain zinc hydroxide white precipitate, backward its of extraction precipitation cleaning adds ammoniacal liquor and be constantly stirred to can't see deposit seed just, solution is translucent state, add a small amount of distilled water afterwards and obtain zinc ammonia solution, move to closed container mark for subsequent use;
(3) be immersed in by degreasing cotton gauze in described chitosan solution, shifted 1-2 hour in the sodium hydroxide solution being immersed in 0.1% after 4-24 hour, after rinsing with water, air drying obtains the degreasing cotton gauze containing shitosan;
(4) the shitosan degreasing cotton gauze of step (3) gained is immersed in the zinc ammonia solution of step (2) gained, used microwave treatment 5-10 minute afterwards, gained absorbent cotton mixed solution is put into reactor 140-160 DEG C crystallization, products therefrom is dissolved in distilled water, Ultrasonic Cleaning removes the residue on surface, to remove after moisture the degreasing cotton gauze functional layer that namely 60-80 DEG C of oven drying obtain chitosan-containing and nano zine oxide;
(5) degreasing cotton gauze functional layer, the nonwoven layer of the nonwoven layer, activated carbon non-woven layer of cloth, chitosan-containing and the nano zine oxide that utilize hot melt tape edge technology order to be stacked are sewed up, and then cover body and ear knot with seam are got up.
6. the preparation method of the anti-fine particle mouth mask of chitosan-containing according to claim 5 and nano zine oxide, is characterized in that, the temperature of hot melt tape edge is 110-185 DEG C, and hot melt pressure is 0.3-1MPa.
7. the preparation method of the anti-fine particle mouth mask of chitosan-containing according to claim 5 and nano zine oxide, is characterized in that, described shitosan is crab shell shitosan.
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| CN103960797A (en) * | 2014-05-23 | 2014-08-06 | 陈思敏 | Anti-haze mask special for child |
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| CN106690516A (en) * | 2015-11-12 | 2017-05-24 | 江阴嘉美生物技术有限公司 | Strong-softness antibacterial filtering gauze mask |
| KR101930144B1 (en) * | 2015-12-29 | 2018-12-18 | 한가현 | Mask for health care of cutting off harmful materials by using air curtain |
| CN105725310A (en) * | 2016-05-03 | 2016-07-06 | 韩淑敏 | Mask with oxygenation function |
| CN106388081B (en) * | 2016-08-31 | 2018-06-29 | 郑州大学 | A kind of preparation method of mask and Zinc oxide quantum dot inserted sheet with filtering inserted sheet |
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| CN111543695A (en) * | 2020-04-24 | 2020-08-18 | 上海工程技术大学 | Antibacterial mask and preparation method thereof |
| CN111657585A (en) * | 2020-05-29 | 2020-09-15 | 珠海阔朗科技有限公司 | Frame formula gauze mask convenient to face identification |
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