CN107373753A - A kind of graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance and preparation method thereof - Google Patents
A kind of graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance and preparation method thereof Download PDFInfo
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- CN107373753A CN107373753A CN201710756495.4A CN201710756495A CN107373753A CN 107373753 A CN107373753 A CN 107373753A CN 201710756495 A CN201710756495 A CN 201710756495A CN 107373753 A CN107373753 A CN 107373753A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/14—Use of materials for tobacco smoke filters of organic materials as additive
Abstract
A kind of preparation method of the graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance, it is characterised in that each reagent is in parts by weight in preparation method, is comprised the following steps：(1) graphene oxide is prepared；(2) graphene oxide of reduction；(3) preparation of water-soluble polysaccharide；(4) preparation of redox graphene/water-soluble polysaccharide；(5) acetate fiber is modified；The cigarette filter that the present invention is prepared, can obvious reducing tar and reducing harm, improve cigarette quality, mouthfeel alcohol is just, reducing the BaP of phenyl ring class class material 3,4 and phenol content in flue gas reaches 45%~65% simultaneously, and its harmfulness can be further reduced on the basis of existing cigarette quality.
Description
Technical field
The invention belongs to cigarette filter material, and in particular to a kind of graphene polysaccharide of selective retention phenyl ring class harmful substance
Modify cigaratte filter and preparation method thereof.
Background technology
In recent years, in the World Health Organization (WHO)), under the actively promoting of many national governments and various Fan Yan groups, entirely
The anti-smoking campaign of ball grows to even greater heights, and the social pressures that tobacco business is subject to are increasing.Member's international politics that WHO is formulated, each
Mansion is signed《The Framework Convention on Tobacco Control》Not only define national governments to take and carry out effective legislation, it is administrative and its
Its measure prevents and reduced tobacco consumption, nicotine addiction and Exposure To Tobacco flue gas etc., but also requires to enter tobacco product composition
Row limitation.At present, some Main Developed Countries are also made that to the tar, nicotine and carbon monoxide of commercial cigarettes in succession in the world
Specific limitation, meanwhile, the health and environmental consciousness of consumer itself have also strengthened.In this context, World tobacco industry is
Reduce harm of the tobacco product to human health, preferably protect the health of consumer, including tobacco leaf production, processing and
Reducing tar and reducing harm new technology simultaneously successfully applies in production of cigarettes.Meanwhile accelerating to lower Jiao also occurs in international cigarette market
The trend of oil, nicotine and the development of low harmful components cigarette.
It is generally believed that 99.4% or so composition is harmless in cigarette smoke, 0.6% or so composition has to human body
Evil.Contain more than 4000 kinds of chemical substance in cigarette, wherein at least 69 kinds are potentially carcinogenic.Harmful components in smoke from cigarette have hydrogen cyanogen
Acid, carbon monoxide, volatile nitrosamine class material, volatile aldehyde material, nitrogen oxides, vinyl chloride, pyridine, phenol, class
And trace-level activity element etc..Wherein, condensed-nuclei aromatics is such as
3,4- BaPs and phenol type substances for generally acknowledged strong carcinogen and promote cancer thing.In addition it is polycyclic present in flue gas
Arene derivatives free radical such as quinone/Semiquinone Radicals (Q/QH) etc. have various biological effect, in carcinogenic substance and promote cancer thing
Synergy under, injuring normal cell, cancer can be formed.Therefore, such as condensed-nuclei aromatics, phenol, more cyclophanes how to be reduced
The strong harmful substance such as hydrocarbon free radical, while and can makes cigarette protect perfume, improves smoking security, is cigarette industry development in recent years
Popular problem.
Graphene oxide is a kind of derivative of graphene, and it is the individual layer or multilayer peeled off by graphite oxide and formed
Graphene film.Graphite oxide contains abundant oxygen-containing functional group, and specific surface area is big so that graphene oxide has good
Chemism and superpower absorption property.By graphene and graphene oxide, alternatively the superpower sorbing material of property is applied to cigarette
In filter tip, polycyclic phenyl ring class class nuisance in retention cigarette smoke is played, has the function that reducing tar and reducing harm, this respect is ground at present
Study carefully less.Therefore, the drop evil harm reduction effect of the selective absorption phenyl ring class class nuisance to graphene in filter tip carries out system
Evaluation, and its mechanism of action is furtherd investigate very necessary.
The functional group such as pyranoid ring containing numerous hydroxyls, amino and electron rich in water-soluble polysaccharide molecule, can be to cigarette
Chemical composition in gas forms physical absorption and chemisorbed, especially to reducing phenol nuisance significant effect.Therefore, by stone
Black alkene with modifying filter tip after polysaccharide composite, make by the collaboration that can play graphene and polysaccharide selective removal phenyl ring class class nuisance
With reaching reduces the purpose that flue gas endangers.
At present, it is more and more to explore the application of new material, new technology in cigarette filter, prepares low Jiao of high-quality and safety
Oily Less harmful cigarette is the general trend of international cigarette product development.General filter tip can filter out the total particulate in flue gas, subtract
The intake of few coke tar in cigarette.Harmful components in such as Li Shaomin utilization modified version molecular sieve reduction cigarette smokes, but this
Kind of mode only can optionally filter out partial gas phase thing and the volatile harmful material of low boiling point, and to non-volatile and
Can not selectively it be filtered out if the higher volatile materials of boiling point (such as 3.4- BaPs).
It is compound that publication number CN104389234A patent application discloses a kind of cigarette filter chitosan-graphene oxide
Material, it is to prepare graphene aqueous dispersions, chitosan-acetic acid solution is added in graphene oxide aqueous dispersions made afterwards
It is standby to obtain composite suspension liquid, cellulose embossed paper is suspension be applied to afterwards, prepares cigaratte filter.The patent discloses method letter
It is single, but graphene is directly dispersing in water and easily assembled, while chitosan is due to deacetylated due to its special structure
The influence of degree, poorly water-soluble, acetum has been used in use as solvent so that the graphene/shell prepared gathers
Sugar juice is easily assembled, and then influences the adsorption selectivity of material.
It is contemplated that the dispersiveness of the defects of overcoming in the prior art and deficiency, raising graphene and water-soluble polysaccharide
Can so that the filtering material after modification is capable of the absorption phenyl ring class harmful substance of selectivity, is cigarette reducing tar and reducing harm.
The content of the invention
It is an object of the invention to provide a kind of filter of the graphene polyose modification cigarette of selective retention phenyl ring class harmful substance
Mouth and preparation method thereof, using it is this using this cigaratte filter can obvious reducing tar and reducing harm, while do not influence smoker's
Experience.
Realize, comprise the following steps especially by following methods, wherein each reagent calculates according to parts by weight.
Step (1) prepares graphene oxide：The first step pre-oxidizes, and takes 1-10 part potassium sulfates to be added to the dense sulphur of 20-50 parts
In acid, the phosphorus pentoxide of 1-10 parts is added, is heated up, then adds the graphite powder of 2-10 parts, reacts 3-10h, reaction terminates
Filtration washing is dried, the graphene pre-oxidized to neutrality；Secondary oxidation, the concentrated sulfuric acid of 150-300 parts is measured, cool, add
Enter the graphene of pre-oxidation, then add the potassium permanganate of 10-50 parts, heating, react 2-5h, be then slowly added into 200-500
Part water, heating stirring, adds 500-1000 part water, adds the hydrogen peroxide of 5-20 parts 30%, filters, and washs to neutrality, filtering, does
It is dry, obtain graphene oxide.
The graphene oxide of step (2) reduction：The graphene oxide of preparation is prepared into 1-10mg/ml graphene oxide
The aqueous solution, hydrazine hydrate is then added, reduce 5h, the graphene oxide reduced.
Without chemical treatment before graphene reduction prepared by oxidation-reduction method, can soon assemble in reduction process
Together, blocky graphite is regenerated, hardly results in wanted Sheet Graphite alkene.The reunion of graphene will have a strong impact on graphite
The specific surface area of alkene, so as to cause graphene absorption property to decline, while also cause graphene uniformly to modify filter well
Fiber in mouth.Therefore, selection absorption phenyl ring can be determined by how obtaining the composite solution that graphene uniform is dispersed in polysaccharide
Native graphite oxidation is prepared graphene oxide by two-step oxidation, made afterwards by the key of class class harmful substance ability, the present invention
With hydrazine hydrate reduction graphene oxide, the graphene oxide (RGO) of reduction is prepared, dispersive property is good, is not susceptible to assemble.
Graphene has the function of removing free radical, and this is attributed in such nano-carbon material molecule and is total in the presence of very big π
Yoke structure, electronics can be provided for free radical, it is for oxygen radical, alkyl radical, hydroxyl radical free radical, nitrence free radical etc.
With scavenging action, the function of antioxidant is played, this is that the harmful free radicals that graphene is used in cigaratte filter removing flue gas carry
Having supplied may.
The preparation of step (3) water-soluble polysaccharide：Take 2 parts of chitosans to be dissolved in hydrochloric acid solution first, add 2-5 part grapes
Sugar；50-200 part absolute ethyl alcohols are added in the solution stated then up, reaction stirring, are subsequently added into alkali lye to solution neutral, mistake
Filter obtains filter residue, filter residue dialysis, and freeze-drying obtains water-soluble polysaccharide.
The dissolubility of polysaccharide influences whether the scattered of graphene, and the dissolubility of chitosan is mainly by its deacetylation come shadow
Ring, most of chitosan is all dissolved in the solution of certain calculation, but the presence of acid can change the electric charge in solution system
Balance, the scattered of graphene is further had influence on, so as to have influence on the adsorption capacity to phenyl ring class class harmful substance.The present invention
Mixed using using chitosan and glucose, by the use of chitosan as amino group donor, the aldehyde radical provided with glucose there may be
Reaction, the water solubility of polysaccharide is significantly improved, while the polysaccharide has stronger oxidation resistance, the reservoir time can also increase
It is long.
Water-soluble polysaccharide is a kind of natural polymerses, due to the amino with cation on its molecular structure side chain,
Can the optionally harmful substance such as tar adsorption, carbon monoxide, heavy metal, but nicotine will not be reduced synchronously, therefore side can be reduced
Harmful components are flowed, excitant are reduced, so as to be effectively reduced pollution of the smoking to environment and the harm to smoker.
The preparation of step (4) redox graphene/water-soluble polysaccharide：Graphene oxide ultrasonic disperse is in water, concentration
Control obtains oxygen reduction in 0.1-5mg/ml, addition water-soluble polysaccharide, the concentration 2-10mg/ml of water-soluble polysaccharide, ultrasonic disperse
Graphite alkene/water-soluble polysaccharide dispersion liquid.
Step (5) modifies filter fiber：Filter fiber is subjected to pre-treatment first, filter fiber is immersed in the oxidation of reduction
In graphene/water-soluble polysaccharide dispersion liquid, take out drying, the composite modified filter fiber of obtained graphene/water-soluble polysaccharide.
Filter tip is made by equipment in filter tip material, cigarette filter includes diadactic structure and ternary structural, and described two
Meta structure is that acetate fiber and the acetate fiber by redox graphene/water-soluble polysaccharide modification are divided into two sections of composition cigarettes
Filter tip；The ternary structural is acetate fiber and the acetate fiber alternating by redox graphene/water-soluble polysaccharide modification
Cigaratte filter is formed, wherein the acetate fiber by redox graphene/water-soluble polysaccharide modification is in stage casing.
The Nomenclature Composition and Structure of Complexes for the acetate fiber modified by changing redox graphene/water-soluble polysaccharide, can improve
Suck impression and filter effect, by test of many times, find the cost of diadactic structure and ternary structural is low, filter efficiency is good,
It is excellent to suck test result.
The cigarette filter that the present invention is prepared, can obvious reducing tar and reducing harm, improve cigarette quality, mouthfeel alcohol just,
Phenyl ring class class material 3 in flue gas is reduced simultaneously, 4- BaPs and phenol content reach 45%~65%, in existing cigarette quality base
Further harm reduction on plinth.
Brief description of the drawings
Fig. 1, graphene modified acetate fiber surface topography；
The acetate fiber surface topography of Fig. 2, redox graphene/water-soluble polysaccharide modification；
The cigaratte filter schematic diagram that the acetate fiber of Fig. 3, redox graphene/water-soluble polysaccharide modification is prepared.
Brief description of the drawings：1st, acetate fiber；2nd, the acetate fiber of redox graphene/water-soluble polysaccharide modification
Specific embodiment
Illustrate the present invention below by way of specific embodiment.
Embodiment 1
Graphene oxide：The first step pre-oxidizes, and takes the 30g concentrated sulfuric acid to be added in 500g three-necked flask, then weighs
5g potassium peroxydisulfates are slowly added into the concentrated sulfuric acid, add 5g phosphorus pentoxide, are warming up to 80 DEG C, then add 3g graphite
Powder, reacts 6h, and reaction terminates filtration washing to neutrality, then dries 3h in 60 DEG C of vacuum drying chamber again, the stone pre-oxidized
Black alkene；Secondary oxidation, the concentrated sulfuric acid for measuring 200g are added in 500ml three-necked flask, are placed in 0 DEG C of ice bath, are slowly added
Enter the graphene of pre-oxidation, then add 30g potassium permanganate, be warming up to 35 DEG C of maintenance 3h, be then slowly added into 250g steaming
Distilled water, finally it is warming up to 95 DEG C and is stirring 15min, then plus reaction solution is transferred in 1000ml beaker, adds 600g's
Deionized water, the hydrogen peroxide of 6g 30% is added, is then filtered, washed successively with 10% hydrochloric acid, deionized water to neutrality, so
3h is dried in 60 DEG C of vacuum drying chamber again afterwards, obtains graphene oxide.
The graphene oxide of reduction：The graphene oxide of preparation is prepared into 1mg/ml graphene oxide water solution, so
After add a certain amount of hydrazine hydrate and reduce 5h under the conditions of 90 DEG C, the graphene oxide reduced.
Take 2g sugar to be dissolved in 200g 0.1mol/L hydrochloric acid, wait chitosan to add 4g glucose after being completely dissolved.So
100ml absolute ethyl alcohols are added in backward above-mentioned solution, then after reaction solution is put into 50 DEG C of stirred in water bath reaction 12h,
A certain amount of alkali lye is subsequently added into, solution is filtrated to get filter residue to neutrality, filter residue then is dissolved into dialysis 24h, finally freezed
It is dried to obtain water-soluble polysaccharide.
The graphene oxide of reduction is dispersed in water by the method for ultrasound, the graphene oxide concentration of reduction is 1mg/
Ml, homogeneous, stable aqueous dispersions are formed, 1000g water-soluble polysaccharides are then added to the water-soluble of 200g graphene oxides
In liquid, wherein the concentration of water-soluble polysaccharide is 2mg/ml, after ultrasonic a period of time, forms stable, homogeneous graphene/water
Soluble polysaccharide dispersion liquid.
Filter fiber is subjected to pre-treatment, then by filter fiber infiltration in graphene/water-soluble polysaccharide dispersion liquid, leaching
The temperature of profit maintains 50 DEG C, time 2h, and after infiltration terminates, the filter fiber after infiltration then is placed on into 80 DEG C of vacuum drying ovens
Middle dry 8h, the filter fiber of graphene/water-soluble polysaccharide complex modification is made.
Cigaratte filter is prepared by a conventional method, prepares the cigarette containing the cigaratte filter.
Embodiment 2
The graphene oxide and water-soluble polysaccharide for the reduction that method according to embodiment 1 is prepared.
The graphene oxide of reduction is dispersed in water by the method for ultrasound, the graphene oxide concentration of reduction is 3mg/
Ml, homogeneous, stable aqueous dispersions are formed, 1000g water-soluble polysaccharides are then added to the water-soluble of oxidation 200g graphenes
In liquid, the concentration of water-soluble polysaccharide is 2mg/ml, after ultrasonic a period of time, forms stable, homogeneous graphene/water solubility
Polysaccharide dispersion liquid.
Filter fiber is subjected to pre-treatment, then infiltrated filter fiber in graphene/water-soluble polysaccharide dispersion liquid, infiltration
Temperature maintain 50 DEG C, time 2h, after infiltration terminates, then the filter fiber after infiltration is placed in 80 DEG C of vacuum drying ovens
8h is dried, the filter fiber of graphene/water-soluble polysaccharide complex modification is made.
Cigaratte filter is prepared by a conventional method, prepares the cigarette containing the cigaratte filter.
Embodiment 3
The graphene oxide and water-soluble polysaccharide for the reduction that method according to embodiment 1 is prepared.
The graphene oxide of reduction is dispersed in water by the method for ultrasound, the graphene oxide concentration of reduction is 1mg/
Ml, homogeneous, stable aqueous dispersions are formed, 1000g water-soluble polysaccharides are then added to the water-soluble of 200g graphene oxides
In liquid, the concentration of water-soluble polysaccharide is 1mg/ml, after ultrasonic a period of time, forms stable, homogeneous graphene/water solubility
Polysaccharide dispersion liquid.
Filter fiber is subjected to pre-treatment, then infiltrated filter fiber in graphene/water-soluble polysaccharide dispersion liquid, infiltration
Temperature maintain 50 DEG C, time 2h, after infiltration terminates, then the filter fiber after infiltration is placed in 80 DEG C of vacuum drying ovens
8h is dried, the filter fiber of graphene/water-soluble polysaccharide complex modification is made.
Cigaratte filter is prepared by a conventional method, prepares the cigarette containing the cigaratte filter.
Comparative example 1
Commercially available graphene, configuration graphene concentration 0.2mg/ml, 0.2mg/ml chitosan solution, solvent are 3% vinegar
Acid solution, 1000g chitosan-acetum is added drop-wise in 200g graphene solution, stirred, above-mentioned solution is applied
Overlay on acetate fiber embossed paper, dry, cigaratte filter is prepared, while prepare the cigarette containing the cigaratte filter.
Comparative example 2
The graphene oxide of reduction is prepared according to the method for embodiment 1
The graphene oxide of reduction is dispersed in water by the method for ultrasound, the graphene oxide concentration of reduction is 3mg/
Ml, form homogeneous, stable aqueous dispersions, graphene dispersing solution.
Filter fiber is subjected to pre-treatment, then impregnated filter fiber infiltration in graphene dispersing solution, the temperature of infiltration
Degree maintains 50 DEG C, time 2h, after infiltration terminates, and then the filter fiber after infiltration is placed in 80 DEG C of vacuum drying ovens and dried
8h, the filter fiber of graphene/water-soluble polysaccharide complex modification is made.
Cigaratte filter is prepared by a conventional method, prepares the cigarette containing the cigaratte filter.
Comparative example 3
Method according to embodiment 1 prepares water-soluble polysaccharide
Water-soluble polysaccharide is dissolved in water by the method for ultrasound, the graphene oxide concentration of reduction is 2mg/ml, shape
Into homogeneous, stable aqueous dispersions, graphene dispersing solution.
Filter fiber is subjected to pre-treatment, then impregnated filter fiber infiltration in water-soluble polysaccharide solution, infiltration
Temperature maintains 50 DEG C, time 2h, after infiltration terminates, and then the filter fiber after infiltration is placed in 80 DEG C of vacuum drying ovens and done
Dry 8h, the filter fiber of graphene/water-soluble polysaccharide complex modification is made.
Cigaratte filter is prepared by a conventional method, prepares the cigarette containing the cigaratte filter.
Comparative example 4
Method according to embodiment 1 prepares water-soluble polysaccharide；
Graphene oxide：The concentrated sulfuric acid for measuring 200g is added in 500ml three-necked flask, is placed in 0 DEG C of ice bath, is delayed
It is slow to add 3g graphite, 30g potassium permanganate is then added, is warming up to 35 DEG C of maintenance 3h, is then slowly added into 250g distilled water,
Finally it is warming up to 95 DEG C and is stirring 15min, then plus reaction solution is transferred in 1000ml beaker, adds 600g deionization
Water, the hydrogen peroxide of 6g 30% is added, is then filtered, washed successively with 10% hydrochloric acid, deionized water to neutrality, then again 60
DEG C vacuum drying chamber in dry 3h, obtain graphene oxide.
The graphene oxide of reduction：The graphene oxide of preparation is prepared into 1mg/ml graphene oxide water solution, so
After add a certain amount of hydrazine hydrate and reduce 5h under the conditions of 90 DEG C, the graphene oxide reduced.
The graphene oxide of reduction is dispersed in water by the method for ultrasound, the graphene oxide concentration of reduction is 1mg/
Ml, homogeneous, stable aqueous dispersions are formed, 1000g water-soluble polysaccharides are then added to the water-soluble of 200g graphene oxides
In liquid, the concentration of water-soluble polysaccharide is 2mg/ml, after ultrasonic a period of time, forms stable, homogeneous graphene/water solubility
Polysaccharide dispersion liquid.
Filter fiber is subjected to pre-treatment, the graphite oxide for then in debita spissitudo, suitably matching filter fiber infiltration
In alkene/water-soluble polysaccharide dispersion liquid, the temperature of infiltration maintains 50 DEG C, time 2h, after infiltration terminates, then by after infiltration
Filter fiber, which is placed in 80 DEG C of vacuum drying ovens, dries 8h, and the filter fiber of graphene/water-soluble polysaccharide complex modification is made.
Cigaratte filter is prepared by a conventional method, prepares the cigarette containing the cigaratte filter.
Comparative example 5
The graphene oxide of reduction prepared by the method according to embodiment 1；
The graphene oxide of reduction is dispersed in water by the method for ultrasound, the graphene oxide concentration of reduction is 1mg/
Ml, form homogeneous, stable aqueous dispersions；0.2mg/ml chitosan solution is prepared, solvent is 3% acetum；Will
1000g chitosans-acetum is added drop-wise in 200g graphene oxide solutions, after ultrasonic a period of time, is formd stablizing, equal
One graphene/water-soluble polysaccharide dispersion liquid.
Filter fiber is subjected to pre-treatment, the graphite oxide for then in debita spissitudo, suitably matching filter fiber infiltration
In alkene/water-soluble polysaccharide dispersion liquid, the temperature of infiltration maintains 50 DEG C, time 2h, after infiltration terminates, then by after infiltration
Filter fiber, which is placed in 80 DEG C of vacuum drying ovens, dries 8h, and the filter fiber of graphene/water-soluble polysaccharide complex modification is made.
Cigaratte filter is prepared by a conventional method, prepares the cigarette containing the cigaratte filter.
Comparative example 6
Cigarette without any processing.
Method of testing, smoke test is carried out by testing smoke extractor, front and rear and filter tip surface modification is modified in analysis contrast
Constituent content changes the influence for the smoke components content such as BaP, phenol, nicotine, tar, carbon monoxide, and sample uses length
Degree：1cm.
Table 1：The filter effect of different embodiments
From table 1 it follows that using the cigaratte filter that the present invention is prepared to the drop of 3,4- BaPs and phenol
Low rate has reached 45-65%, and filter effect is significantly improved for existing filtration core.For nicotine, CO and Jiao
The adsorption rate of oil has also reached 20% or so, and this is all because improving the stability of graphene and the association with water-soluble polysaccharide
Tonality, when above-mentioned solution is attached on filter fiber, make graphene oxide scattered more uniformly, add the filtering effect of filter tip
Fruit.
Embodiment 7
Using the filter fiber by graphene/water-soluble polysaccharide complex modification being prepared in embodiment 1, will filter
Cigaratte filter, which is prepared, in mouth fiber includes diadactic structure and ternary structural, and diadactic structure is for acetate fiber and by reduction-oxidation
The acetate fiber of graphene/water-soluble polysaccharide modification is divided into two sections of composition cigaratte filters；Ternary structural is acetate fiber and process
The acetate fiber of redox graphene/water-soluble polysaccharide modification alternately forms cigaratte filter, wherein by reduction-oxidation graphite
The acetate fiber of alkene/water-soluble polysaccharide modification is in stage casing.Cigarette is made in the cigaratte filter of diadactic structure and ternary structural, and is selected
It is common acetate fiber cigarette filter to select blank example.Test filter effect.Test result is shown in Table 2.
Table 2：The filter effect of the cigaratte filter of different structure
Although it can be seen that the structure for changing cigaratte filter from the test result of table 2 to have an impact filter effect, shadow
Simultaneously unobvious are rung, within 10%, the Cost Problems and filter effect of consideration, cigaratte filter can make filter effect reduced rate
Also there is preferable filter effect while reducing cost with diadactic structure and ternary structural.
The embodiment 1-6 cigarettes being prepared are sucked by volunteer, mouthfeel is sucked in test, just and is sucked from mouthfeel alcohol
Dynamics changes two aspects and tested, and sucks effect by Statistic analysis, selects the people of volunteer 30, wherein be male, year
Age 25-30 year.
Wherein mouthfeel and the dynamics of sucking is divided into 5 each grades, wherein：
1 grade represents poor taste or sucks laborious
2 grades represent that mouthfeels are general or suck to have some setbacks
3 grades represent good mouthfeel or suck unobstructed
4 grades are representing mouthfeel alcohol just or are sucking smooth
It can be seen that by the cigaratte filter after graphene/soluble polysaccharide modification, keep from the test result of volunteer
Preferably mouthfeel and resistance to suction are sucked, the quality of conventional cigarette can be obviously improved.
Claims (9)
- A kind of 1. graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance, it is characterised in that：Cigaratte filter Including filter fiber, for filter fiber by graphene oxide/water-soluble polysaccharide modification, the water-soluble polysaccharide is chitosan and Portugal The product that grape sugar reaction obtains.
- 2. a kind of graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance as claimed in claim 1, its It is characterised by：The graphene oxide is the redox graphene by hydrazine hydrate reduction, and the filter fiber is that acetic acid is fine Dimension.
- 3. a kind of graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance as claimed in claim 2, its It is characterised by：The cigaratte filter includes diadactic structure and ternary structural, and the diadactic structure is acetate fiber and passes through reduction The acetate fiber of graphene oxide/water-soluble polysaccharide modification is divided into two sections of composition cigaratte filters；The ternary structural is that acetic acid is fine Acetate fiber of the peacekeeping by redox graphene/water-soluble polysaccharide modification alternately forms cigaratte filter, wherein by reduction The acetate fiber of graphene oxide/water-soluble polysaccharide modification is in stage casing.
- 4. a kind of graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance as described in claim 1-3 Preparation method, it is characterised in that each reagent is in parts by weight in preparation method, is comprised the following steps：(1) graphite oxide is prepared Alkene；(2) graphene oxide of reduction；(3) preparation of water-soluble polysaccharide；(4) system of redox graphene/water-soluble polysaccharide It is standby；(5) acetate fiber is modified；Wherein, step (1) prepares graphene oxide：The first step pre-oxidizes, and takes 1-10 part potassium sulfates to be added to the dense sulphur of 20-50 parts In acid, the phosphorus pentoxide of 1-10 parts is added, is heated up, then adds the graphite powder of 2-10 parts, reacts 3-10h, reaction terminates Filtration washing is dried, the graphene pre-oxidized to neutrality；Secondary oxidation, the concentrated sulfuric acid of 150-300 parts is measured, cool, add Enter the graphene of pre-oxidation, then add the potassium permanganate of 10-50 parts, heating, react 2-5h, be then slowly added into 200-500 Part water, heating stirring, adds 500-1000 part water, adds the hydrogen peroxide of 5-20 parts 30%, filters, and washs to neutrality, filtering, does It is dry, obtain graphene oxide.
- A kind of 5. system of the graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance as claimed in claim 4 Preparation Method, it is characterised in that：The graphene oxide of step (2) reduction：The graphene oxide of preparation is prepared into 1-10mg/ml's Graphene oxide water solution, hydrazine hydrate is then added, reduce 5h, the graphene oxide reduced.
- 6. a kind of graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance as described in claim 4-5 Preparation method, the preparation of step (3) water-soluble polysaccharide：Take 2 parts of chitosans to be dissolved in hydrochloric acid solution first, add 2-5 Part glucose；50-200 part absolute ethyl alcohols are added in the solution stated then up, reaction stirring, are subsequently added into alkali lye into solution Property, filter residue, filter residue dialysis are filtrated to get, freeze-drying obtains water-soluble polysaccharide.
- 7. a kind of graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance as described in claim 4-5 Preparation method, the preparation of step (4) redox graphene/water-soluble polysaccharide：Graphene oxide ultrasonic disperse in water, Concentration is controlled in 0.1-5mg/ml, adds water-soluble polysaccharide, ultrasonic disperse, which obtains redox graphene/water-soluble polysaccharide, to be disperseed Liquid.
- 8. a kind of graphene polyose modification cigaratte filter of selective retention phenyl ring class harmful substance as described in claim 4-5 Preparation method, the step (5) modify filter fiber：Filter fiber is subjected to pre-treatment first, filter fiber is immersed in reduction Graphene oxide/water-soluble polysaccharide dispersion liquid in, take out drying, the filter of graphene/water-soluble polysaccharide complex modification be made Mouth fiber.
- A kind of 9. graphene polyose modification cigarette filter of selective retention phenyl ring class harmful substance containing as described in claim 4-5 The cigarette of mouth.
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| CN201710756495.4A CN107373753B (en) | 2017-08-29 | 2017-08-29 | Graphene polysaccharide modified cigarette filter tip for selectively intercepting benzene ring harmful substances and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110013051A (en) * | 2019-04-17 | 2019-07-16 | 云南中烟工业有限责任公司 | A kind of floral type filter stick for cigarettes additive and preparation method thereof |
| CN111821774A (en) * | 2020-08-07 | 2020-10-27 | 丛春华 | Preparation method of graphene cigarette smoke filter screen and obtained filter screen |
| CN112515240A (en) * | 2020-12-02 | 2021-03-19 | 武汉力诚生物科技有限公司 | Plant polysaccharide and tobacco tow composite filter tip rod and preparation method thereof |
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| CN112515240A (en) * | 2020-12-02 | 2021-03-19 | 武汉力诚生物科技有限公司 | Plant polysaccharide and tobacco tow composite filter tip rod and preparation method thereof |
| CN112515240B (en) * | 2020-12-02 | 2022-11-22 | 武汉力诚生物科技有限公司 | Plant polysaccharide and cigarette tow composite filter tip rod and preparation method thereof |
| CN113197344A (en) * | 2021-05-13 | 2021-08-03 | 云南中烟工业有限责任公司 | Composite acetate fiber, preparation method and application thereof |
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