CN107051147A - A kind of formaldehyde eliminating agent and preparation method thereof - Google Patents
A kind of formaldehyde eliminating agent and preparation method thereof Download PDFInfo
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- CN107051147A CN107051147A CN201710071084.1A CN201710071084A CN107051147A CN 107051147 A CN107051147 A CN 107051147A CN 201710071084 A CN201710071084 A CN 201710071084A CN 107051147 A CN107051147 A CN 107051147A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
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- B01J20/26—Synthetic macromolecular compounds
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Abstract
The invention discloses a kind of formaldehyde eliminating agent and preparation method thereof, include the component of following percentage by weight：The oligopeptide 5 15% of Alfa cyclodextrin grafting fibers, silver-carrying nano anatase titanium dioxide 1 5%, polyphenol powde 0.1 0.5%, dispersant 0.1 0.5%, bleeding agent 0.1 0.5%, surplus are deionized water.By being added into the oligopeptide mixed dispersant of Alfa cyclodextrin grafting fibers in deionized water, mixed liquor A is made in stirring；Polyphenol powde stoste is added in mixed liquor A, bleeding agent after stirring, adds silver-carrying nano anatase titanium dioxide, stir finished product.The formaldehyde eliminating agent of the present invention has good permeability, can be deeply infiltrated into material internal, further the profound harmful substance of absorption, degraded；Used raw material is respectively provided with wide material sources, environmental protection, accommodation is extensive, treatment cost is low, easy to use and non-secondary pollution the features such as.
Description
Technical field
The present invention relates to a kind of remover and preparation method thereof, and in particular to a kind of formaldehyde eliminating agent and preparation method thereof,
Belong to environment-friendly materials technical field.
Background technology
As people live, the continuous improvement of economic level is modern after after " coal smoke type ", " photochemical fog type " pollution
People initially enters threeth pollution period of the room air pollution for mark.And with the improvement of housing condition, modern is in room
The time of interior life is also increasingly longer, and average about 90% time live and work is indoors.Therefore bad indoor environmental pollution
Meeting great threat the healthy of people.The World Health Organization in 1989 is according to the boiling point of compound by indoor organic pollutant
It is divided between four classes, this four pollutants according to classification and does not have strict boundary（It is shown in Table 1）.Wherein formaldehyde is bad build
Build thing syndrome（Sick building syndrome, SBS）One of clear and definite hazards, and formaldehyde has in China and poisons
Second is also occupied on product priority acccess control list, bioxin is only second to, it belongs to VVOC（Gaseous organic compound）It is organic in class room
Pollutant, compared with other indoor organic pollutants, it is also protruded healthy influence the most in non-industrialness indoor environment,
Cause extensive attention.
The classification of the indoor organic pollutant of table 1
| Classification | Abbreviation | Boiling spread/°C |
| High volatile organic compound | VVOC | <0 to 50~100 |
| VOC | VOC | 50~100 to 240~260 |
| Semi-volatile organic compounds | SVOC | 240~260 to 380~400 |
| Graininess organic compound | POM | >380 |
1. the harm of formaldehyde
Formaldehyde is most simple and most common aldehyde compound, is gas colourless, with intense irritation；Relative density is
1.06, air is slightly overweighted, boiling point is -19 DEG C；It is meltable in water, its 30%-40% aqueous solution is referred to as formalin.In recent years,
The toxicity and sensitivity response of domestic and international PARA FORMALDEHYDE PRILLS(91,95) expand substantial amounts of research, and its harm is shown as to upper respiratory tract mucous membrane, eyes
There is intense irritation with skin, make one the symptoms such as headache, dizziness occur, high concentration the stimulation of respiratory tract seriously occurs when sucking
And oedema, Long Term Contact can also result in dry skin chap.Meanwhile, formaldehyde or a kind of haptens, into internal energy and albumen
Matter combines to form antigen, causes the local skin even allergic reaction of whole body.And high-concentration formaldehyde or a kind of genotoxicity thing
Matter, there is certain mutagenesis, and experiment shows, animal can cause nose in the case of the chronic suction of laboratory high concentration
Tumor of pharynx.Formaldehyde has direct fracture damage to act on to the DNA of splenic lymphocytes.According to international cancer research institution, formaldehyde
Lung cancer and allergic reaction can be caused.Table 2 illustrates human body for the health effect produced by short time formaldehyde exposure.According to
Limit value is instructed in the interior that WHO recommends, and the level of pollution of newly-built building indoor formaldehyde is fluctuated in 0.1mg/m3Up and down.
2 short time of the table health effect of formaldehyde exposure is shown in
| Health effect | Concentration of formaldehyde level/(mg/ m3) | Reaction density median |
| Olfacty | 0 .06- 1 .2 | 0.1 |
| Eye irritation threshold | 0 .01- 1 .9 | 0.5 |
| Swallow stimulus threshold | 0.1- 3 .1 | 0.6 |
| Eye irritation sense | 2.5- 3 .7 | 3.1 |
| Shed tears (30min exposures) | 5.0- 6 .2 | 5.6 |
| Shed tears strongly (1h exposures) | 12- 25 | 17.8 |
| Threat to life:Oedema, inflammation, pneumonia | 37-60 | 37.5 |
| It is dead | 60 -125 | 125 |
2. the source of indoor formaldehyde
Formaldehyde in nature is an intermediate product in methane cycle, and background value is very low, is only several μ g/m3Level.
Mean concentration is about 0.005-0.01mg/m in urban air3, it is usually no more than 0.03mg/m3.Formaldehyde master in room air
Gluing in artificial board such as glued board, fiberboard, the particieboard to be used from finishing material and new composite furniture
Agent, heat, during deliquescence, the formaldehyde in adhesive is just slowly released；Some are used as house solar heat protection, and the insulating materials of resisting cold exists
In the presence of light and heat, formaldehyde is also discharged after aging；In addition, other household material such as wallpapers, are painted, coating etc. also contains
Formaldehyde.The formaldehyde gas discharged also can be gathered gradually in wall, floor, or even toy for children, to human body especially teenager
Cause the injury of continuation.Furthermore, some also contain formaldehyde from outdoor industrial waste gas, vehicle exhaust, photochemical fog etc.
Composition, increases so as to further result in indoor formaldehyde gas content.
Exactly because formaldehyde pollutes with multipath indoors, disguised, the features such as characteristic of concentration, it has potential to human body
, universal, long-term harm.Therefore the extent of injury of formaldehyde is even more serious compared with other pollutants.
3. the formaldehyde eliminating agent type developed based on chemical reaction
The formaldehyde eliminating agent (formaldehyde catching agent) developed in the market based on chemical reaction is basically divided into 4 classes：
The first kind is sealer, such as blocking absorbent of formaldehyde of the invention of Application No. 01138098.5 and preparation method thereof and is used
Method, is mainly made up of chitosan, acetic acid and water, forms transparent film closed methanal.But such means are only
It is that formaldehyde is temporarily wrapped in the source of releases such as sheet material, once the sealer smeared is damaged, formaldehyde can also be discharged again.
Equations of The Second Kind is oxidant, utilizes the material of energy oxidation of formaldehyde, such as sodium perborate, hypochlorous acid, hydrogen peroxide, titanium dioxide
Chlorine removes formaldehyde by redox reaction.Formaldehyde scavenger such as the invention of Application No. 200510090754.1 is with bicarbonate
The mixed solution of sodium, hydrogen peroxide and water composition, plays a part of eliminating formaldehyde pollution by aoxidizing free formaldehyde molecule.Generally
In the case of, oxidant can be only adsorbed in the oxidizable pollutant tool in the part on surface to having evaporate into the air of interior
Have certain effect, pollutant that is internal to pollution and discharging again is not acted on.And must shut off window when using oxidant
Family, evacuating people has significant limitation.
3rd class is the derivative of ammonia, and formaldehyde is removed using ammonia, the derivative of amine and formaldehyde nucleophilic addition.It is this kind of
Ammonia, amido derivative include urea, oxyammonia, hydrazine, phenylhydrazine, DNPH and amino Semicarbazido etc..Such as Application No.
The derivative of the utilization ammonia of 02100765.9 invention is raw material, carries out reaction manufacture formaldehyde catching in neutral conditions with urea clear
Except formaldehyde.But such compound, which is excessively used, can cause the pollution again of ammonia, make the taste of indoor ammonia strong, be difficult to remove,
Trigger secondary pollution.
4th class is amino acids, such as a kind of amino acid type formol release agent of the invention of Application No. 200610017363.1
And preparation method thereof, formaldehyde is removed by amino acid and formaldehyde reaction generation methylol acid.Amino acids formaldehyde scavenger
Amino acid and formaldehyde is mainly used to react generation high-molecular compound, but it is low in the presence of insufficient, formaldehyde removing rate is reacted
Drawback.
In summary, how the deficiency of formaldehyde eliminating agent on existing market is optimized, develop it is a kind of efficiently, environmental protection
Formaldehyde eliminating agent, be those skilled in the art be badly in need of solve technical barrier.
The content of the invention
To solve the deficiencies in the prior art, it is an object of the invention to provide a kind of quick and durable type formaldehyde eliminating agent, institute
Safety and environmental protection containing composition, elimination formaldehyde that can be quick and durable is applied widely, solves lacking present in above-mentioned prior art
Fall into.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：
The related chemistry title abbreviation being related in the present invention：
DDC：Didodecyl carbonate
CTC：Carbon tetrachloride
Fmoc：9-fluorenylmethyloxycarbonyl
TBTU：O- BTAs-N, N, N', N'- tetramethylurea tetrafluoro boric acid
HOBt：I-hydroxybenzotriazole
A kind of formaldehyde eliminating agent, includes the component of following percentage by weight：Oligopeptide 5-15%, the load silver of Alfa- cyclodextrin grafting fibers
Nano-anatase mine-titanium oxide 1-5%, the 1-0. 5% of polyphenol powde 0., the 1-0. 5% of dispersant 0., the 1-0. 5% of bleeding agent 0.,
Surplus is deionized water.
The preparation method of the oligopeptide of above-mentioned Alfa- cyclodextrin grafting fibers, comprises the following steps：
A1, using CTC resins as raw material, using the Fmoc amino acid protected and/or amino acid derivativges as monomer, with TBTU/ HOBt
For condensing agent, it is made after peptide chain to add and cuts peptide reagent and cut peptide, add ether precipitation and crude product is made；By above-mentioned crude product through C18 posts
Isolate and purify, peptide molecule is made；
A2, by certain mass percent, by Alfa- cyclodextrins in deionized water；Sequentially add coupling agent, polypeptide point
Son, at a certain temperature stirring is completed after polycondensation reaction, filtering, dries the oligopeptide of obtained Alfa- cyclodextrin grafting fibers.
Further, in above-mentioned steps A1 during amino acid and/or the mass percent of derivative are 95-99%, step A2
The mass percent of Alfa- cyclodextrin be 1-5%, the mass percent of coupling agent is 0.05%, the quality percentage of peptide molecule
Than for for 10-20%, the degree of polymerization of the oligopeptide of Alfa- cyclodextrin grafting fibers is 1-10, and reaction temperature is 25 DEG C, the reaction time is
2-3h。
Further, above-mentioned amino acid and amino acid derivativges are alkalescence.
Further, above-mentioned amino acid is L-arginine, Pidolidone, 1B, L-Histidine, L- glycine, L-
One or more in alanine, L-Methionine；Above-mentioned amino acid derivativges are glutamic acid methyl ester, D-Arg methyl esters hydrochloric acid
One or more in the burnt paddy hydrochloride of salt, L lysine HCL, L-arginine-L-, L-Histidine methyl esters dihydrochloride.
The particle diameter of above-mentioned silver-carrying nano anatase titanium dioxide is 15-30nm, and silver content is 0.1-0.5%wt.
The preparation method of above-mentioned silver-carrying nano anatase titanium dioxide, comprises the following steps：
In B1, the silver ammino solution for being made into anatase titanium dioxide, immersion concentration for 2% silver nitrate solution and 2% ethylenediamine,
Water bath method；
B2, by product made from above-mentioned steps, calcine 2 hours, with hydrogen reducing, silver-carrying nano anatase titanium dioxide be made
Finished product.
The preparation method of above-mentioned any formaldehyde eliminating agent, comprises the following steps：
S1, the oligopeptide mixed dispersant by Alfa- cyclodextrin grafting fibers, are added into deionized water, and mixed liquor A is made in stirring；
S2, by certain mass percent, polyphenol powde stoste is added in above-mentioned mixed liquor A, bleeding agent stirs, is made mixed
Close liquid B；
S3, by certain mass percent, silver-carrying nano anatase titanium dioxide is added to above-mentioned steps S2 mixed liquid B
In, stir, formaldehyde eliminating agent is made.
The mass percent of the oligopeptide of Alfa- cyclodextrin grafting fibers is 5-15%, the quality hundred of dispersant in above-mentioned steps S1
It is 0.1-0.5% to divide ratio；The mass percent of polyphenol powde stoste is 0.1-0.5%, the mass percent of bleeding agent in step S2
For 0.1-0.5%；The mass percent of silver-carrying nano anatase titanium dioxide is 1-5% in step S3.
Above-mentioned steps S1 reaction temperatures are 25 DEG C, and the reaction time is 2-3h；Mixing time in step S2 and step S3 is
20-40min。
Polyphenol powde (Pythoncidere), source is the system of defense of plant.Polyphenol powde not only has fragrance, also simultaneously
There is woody flavour feature, be a kind of broad spectrum antimicrobial agent.The broad spectrum antimicrobial agent plant extraction liquid polyphenol powde that the present invention is used is that Chinese juniper wood is fragrant more
One or more mixtures in essence, cypress polyphenol powde, camphorwood polyphenol powde, China fir polyphenol powde；Preferably camphorwood polyphenol powde.
Dispersant, promotes material particles to be dispersed in water, forms stable suspension.The dispersant that the present invention is used for
The surfactants such as betaine type, amino acid pattern, phosphate type, imidazoline type；Simultaneously this kind of dispersant also has anti-corrosion concurrently and killed
Bacterium property.
Bleeding agent, promotes formaldehyde eliminating solution more deeply quickly to penetrate into by improvement thing.The infiltration that the present invention is used
Agent is sulfamic acid sodium, AEO, APES, polyethers, phosphate compounds and alcohols
Compound, ketone compounds, ether compound etc..
The present invention is advantageous in that：
（1）The oligopeptide for the Alfa- cyclodextrin grafting fibers that the present invention is synthesized, the wherein cyclodextrin of terminal graft copolymerization have catch,
The ability of formaldehyde adsorption, and active ammonia root contained in other end polypeptide chain is then reacted with formaldehyde molecule, is reached completely
Except the effect of aldehyde；
（2）Certain caking property that the oligopeptide of Alfa- cyclodextrin grafting fibers has, can improve Ag-carried nanometer titanium dioxide in improvement
Tack on thing, prevents to weaken the effect of formaldehyde eliminating agent due to coming off for Ag-carried nanometer titanium dioxide；
（3）The oligopeptides of Alfa- cyclodextrin grafting fibers has complementary advantages with silver-carrying nano anatase titanium dioxide, significantly improves pair
The elimination effect of formaldehyde；
（4）The silver-carrying nano anatase titanium dioxide that the present invention is used, it is not necessary to the condition of ultraviolet lighting is limited to, in natural light
Or hydroxyl radical free radical and peroxylradicals can be produced under the conditions of lucifuge be decomposed into water and titanium dioxide so as to oxidize the formaldehyde into
Carbon；
（5）The formaldehyde eliminating agent of the present invention has good permeability, can gradually permeate, be deep into material internal, deep layer
Secondary harmful substance is further adsorbed, degraded；
（6）Raw material used in the present invention is respectively provided with wide material sources, and environmental protection, accommodation is extensive, treatment cost is low, use
The features such as easy and non-secondary pollution.
Embodiment
Make specific introduce to the present invention below in conjunction with specific embodiment.
The chemical reagent used in embodiments of the invention is as follows：
1st, the preparation of silver-carrying nano anatase titanium dioxide：
In B1, the silver ammino solution for being made into anatase titanium dioxide, immersion concentration for 2% silver nitrate solution and 2% ethylenediamine,
Water bath method；
B2, by product made from above-mentioned steps, calcine 2 hours, with hydrogen reducing, it is 15 ~ 30nm that particle diameter, which is made, and silver content is preferred
For 0.1-0.5%wt silver-carrying nano anatase titanium dioxide finished product.
Chemical material anatase titanium dioxide used is commercially available, and preferably model wins wound P25.
2nd, the preparation referenced patent CN1865279B of peptide molecule《The preparation method of Solid phase peptide synthssis thymopeptide-5》,
Using CTC resins as initiation material, the amino acid protected using Fmoc, using TBTU/HOBt as condensing agent, connects amino one by one as monomer
Acid or derivative, last peptide chain use Boc-Arg-OH, then will cut in the above-mentioned product of peptide reagent addition and carry out cutting peptide, then
Ether precipitation is added, crude product is collected, the crude product of acquisition is isolated and purified using C18 posts, peptide molecule is obtained.
3rd, remaining chemical reagent is all purchased in market.
4th, the percentage in the present embodiment is all mass percent.
Embodiment 1
The preparation of the oligopeptide of Alfa- cyclodextrin grafting fibers：
A1, using CTC resins as raw material, the mol ratio protected using Fmoc is 2:1:1 L-arginine, ALANINE, Pidolidone
For monomer, using TBTU/ HOBt as condensing agent, be made after peptide chain to add and cut peptide reagent and cut peptide, add ether precipitation be made it is thick
Product；By above-mentioned crude product through C18 column separating purifications, peptide molecule is made；
A2, by 4% Alfa- cyclodextrins in deionized water；Sequentially add 0.05% coupling agent DDC, 15% peptide molecule,
25 °C of lower stirring reactions are completed after polycondensation for 2 hours, and the oligopeptide of obtained Alfa- cyclodextrin grafting fibers is dried in filtering.
A kind of preparation of formaldehyde eliminating agent：
S1, oligopeptide mixing 0.1% dispersant-alkyl dimethyl betaine by 15%Alfa- cyclodextrin grafting fibers, are added into
In ionized water, 20 minutes obtained mixed liquor As are stirred；
S2, the camphorwood polyphenol powde stoste for adding in above-mentioned mixed liquor A 0. 1%, 0. 3% aliphatic alcohol polyethenoxy class AEO3 stirs
Mix uniform 20 minutes, mixed liquid B is made；
S3,1% silver-carrying nano anatase titanium dioxide is added in above-mentioned mixed liquid B, stirs 20 minutes, first is made
Aldehyde remover.
Embodiment 2
The preparation method of oligopeptide of Alfa- cyclodextrin grafting fibers in the present embodiment and the preparation method of formaldehyde eliminating agent and implementation
Example 1 is identical, is not repeated repeats herein；Wherein：
Amino acid monomer is that mol ratio is 2 in step A1:1:1 L-arginine, L-Methionine, 1B；
Alfa- cyclodextrin is 4% in step A2, and coupling agent DDC is 0.05%, and peptide molecule is 15%, reaction temperature is 25 °C, instead
It is 2 hours between seasonable；
The oligopeptide of Alfa- cyclodextrin grafting fibers is that 15%, dispersant is 0. 1% alkyl dimethyl betaine in step S1, during stirring
Between be 20 minutes；
Camphorwood polyphenol powde stoste is 0. 1% in step S2, and AEO3 is 0. 3%, and mixing time is 20 minutes；
Silver-carrying nano anatase titanium dioxide is 1% in step S3, and mixing time is 20 minutes.
Embodiment 3
The preparation method of oligopeptide of Alfa- cyclodextrin grafting fibers in the present embodiment and the preparation method of formaldehyde eliminating agent and implementation
Example 1 is identical, is not repeated repeats herein；Wherein：
Amino acid monomer is that mol ratio is 2 in step A1:1:1 L-arginine, 1B, L-Histidine；
Alfa- cyclodextrin is 3.3% in step A2, and coupling agent DDC is 0.05%, and peptide molecule is 15%, reaction temperature is 25 °C,
Reaction time is 2 hours；
The oligopeptide of Alfa- cyclodextrin grafting fibers is that 15%, dispersant is 0. 1%1- ethoxys -1- carboxyethyls-alkyl in step S1
Imidazoline, mixing time is 20 minutes；
Camphorwood polyphenol powde stoste is 0. 1% in step S2, and AEO3 is 0. 3%, and mixing time is 20 minutes；
Silver-carrying nano anatase titanium dioxide is 1% in step S3, and mixing time is 20 minutes.
Embodiment 4
The preparation method of oligopeptide of Alfa- cyclodextrin grafting fibers in the present embodiment and the preparation method of formaldehyde eliminating agent and implementation
Example 1 is identical, is not repeated repeats herein；Wherein：
Amino acid monomer is that mol ratio is 3 in step A1:1 L-arginine, D-Arg methyl ester hydrochloride；
Alfa- cyclodextrin is 3.3% in step A2, and coupling agent DDC is 0.05%, and peptide molecule is 15%, reaction temperature is 25 °C,
Reaction time is 4 hours；
The oligopeptide of Alfa- cyclodextrin grafting fibers is that 15%, dispersant is 0. 1% Cocoamidopropyl betaine quinoline in step S1, is stirred
The time is mixed for 30 minutes；
Chinese juniper wood polyphenol powde stoste is 0. 2% in step S2, and AEO3 is 0. 2%, and mixing time is 30 minutes；
Silver-carrying nano anatase titanium dioxide is 2% in step S3, and mixing time is 30 minutes.
Embodiment 5
The preparation method of oligopeptide of Alfa- cyclodextrin grafting fibers in the present embodiment and the preparation method of formaldehyde eliminating agent and implementation
Example 1 is identical, is not repeated repeats herein；Wherein：
Amino acid monomer is that mol ratio is 1 in step A1:1 L-arginine, D-Arg methyl ester hydrochloride；
Alfa- cyclodextrin is 3.3% in step A2, and coupling agent DDC is 0.05%, and peptide molecule is 15%, reaction temperature is 25 °C,
Reaction time is 4 hours；
The oligopeptide of Alfa- cyclodextrin grafting fibers is that 15%, dispersant is 0. 1% Cocoamidopropyl betaine quinoline in step S1, is stirred
The time is mixed for 30 minutes；
Camphorwood polyphenol powde stoste is 0.2% in step S2, and sulfamic acid sodium is 0.2%, and mixing time is 30 minutes；
Silver-carrying nano anatase titanium dioxide is 2% in step S3, and mixing time is 30 minutes.
Embodiment 6
The preparation method of oligopeptide of Alfa- cyclodextrin grafting fibers in the present embodiment and the preparation method of formaldehyde eliminating agent and implementation
Example 1 is identical, is not repeated repeats herein；Wherein：
Amino acid monomer is that mol ratio is in step A12:11B, L lysine HCL；
Alfa- cyclodextrin is 4% in step A2, and coupling agent DDC is 0.05%, and peptide molecule is 15%, reaction temperature is 25 °C, instead
It is 2 hours between seasonable；
The oligopeptide of Alfa- cyclodextrin grafting fibers is that 15%, dispersant is 0. 2% Cocoamidopropyl betaine quinoline in step S1, is stirred
The time is mixed for 30 minutes；
Chinese juniper wood polyphenol powde stoste is that 0.1%, AEO3 is 0.3% in step S2, and mixing time is 30 minutes；
Silver-carrying nano anatase titanium dioxide is 1.5% in step S3, and mixing time is 30 minutes.
Embodiment 7
The preparation method of oligopeptide of Alfa- cyclodextrin grafting fibers in the present embodiment and the preparation method of formaldehyde eliminating agent and implementation
Example 1 is identical, is not repeated repeats herein；Wherein：
Amino acid monomer is that mol ratio is 1 in step A1:1 D-Arg methyl ester hydrochloride, L lysine HCL；
Alfa- cyclodextrin is 4% in step A2, and coupling agent DDC is 0.05%, and peptide molecule is 30%, reaction temperature is 25 °C, instead
It is 2 hours between seasonable；
The oligopeptide of Alfa- cyclodextrin grafting fibers is that 15%, dispersant is 0.2% Cocoamidopropyl betaine quinoline in step S1, is stirred
The time is mixed for 30 minutes；
Camphorwood polyphenol powde stoste is that 0.1%, PEG200 is 0.3% in step S2, and mixing time is 30 minutes；
Silver-carrying nano anatase titanium dioxide is 1.5% in step S3, and mixing time is 30 minutes.
Embodiment 8
The preparation method of oligopeptide of Alfa- cyclodextrin grafting fibers in the present embodiment and the preparation method of formaldehyde eliminating agent and implementation
Example 1 is identical, is not repeated repeats herein；Wherein：
Amino acid monomer is that mol ratio is 1 in step A1:1 D-Arg methyl ester hydrochloride, L lysine HCL；
Alfa- cyclodextrin is 4% in step A2, and coupling agent DDC is 0.05%, and peptide molecule is 30%, reaction temperature is 25 °C, instead
It is 2 hours between seasonable；
The oligopeptide of Alfa- cyclodextrin grafting fibers is that 15%, dispersant is 0.2% Cocoamidopropyl betaine quinoline in step S1, is stirred
The time is mixed for 30 minutes；
Camphorwood polyphenol powde stoste is 0.1% in step S2, and sulfamic acid sodium is 0.3%, and mixing time is 30 minutes；
Silver-carrying nano anatase titanium dioxide is 1.5% in step S3, and mixing time is 30 minutes.
Test case
A kind of high-efficient and lasting plant type formaldehyde eliminating agent of the present invention uses QB/T2761-2006《Indoor air purification product is net
Change effect measuring method》The concentration of formaldehyde in air sample is detected, Formaldehyde Test is removed.
Experiment condition:
Test temperature:(23.0 ± 3) DEG C, humidity:(50.0±5)%RH；
Simulation laboratory:1.5m3Air test cabin.
Testing program:
In air test cabin, analytically pure 30% formalin 2.0ml is placed in surface plate, volatilization is sampled for 24 hours
It is designated as initial concentration.
300g formaldehyde eliminating agents are uniformly sprayed on three 1m2Base paper on, dry rear-mounted in the central position of experimental cabin
Put, air sample in experimental cabin was gathered again by 24 hours, be designated as 24 hour concentrations.
To the sample foundation QB/T2761-2006 of collection《Indoor air purification product clean-up effect assay method》Detection is empty
The concentration of formaldehyde in gas sample product.
According to the concentration detected in sample, the removal efficiency of formaldehyde scavenger PARA FORMALDEHYDE PRILLS(91,95) is calculated.
Test result is as shown in table 3.
Test explanation:
According to QB/T2761-2006《Indoor air purification product clean-up effect assay method》It is required that, it examines the harmful of project
Material Limited Doses are:Concentration of formaldehyde<0.10mg/m3.The initial concentration of experimental design is 10 times or so that standard requires limitation.
Removal efficiency is calculated:
Removal efficiency=X*100%
The test result of table 3
| Initial concentration of formaldehyde（%） | The hour concentration of formaldehyde 24（%） | Formaldehyde clearance（%） | |
| Embodiment 1 | 100 | 10 | 90 |
| Embodiment 2 | 100 | 10 | 90 |
| Embodiment 3 | 100 | 8 | 92 |
| Embodiment 4 | 100 | 5 | 95 |
| Embodiment 5 | 100 | 1 | 99 |
| Embodiment 6 | 100 | 4 | 96 |
| Embodiment 7 | 100 | 3 | 97 |
| Embodiment 8 | 100 | 2 | 98 |
From the test data of table 3, significantly, the formaldehyde eradicating efficacy of embodiment 5 is particularly for formaldehyde eliminating agent effect of the invention
Significantly.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent substitution or equivalent transformation
Technical scheme, all falls within protection scope of the present invention.
Claims (10)
1. a kind of formaldehyde eliminating agent, it is characterised in that include the component of following percentage by weight：Alfa- cyclodextrin grafting fibers it is low
Poly- peptide 5-15%, silver-carrying nano anatase titanium dioxide 1-5%, the 1-0. 5% of polyphenol powde 0., the 1-0. 5% of dispersant 0., infiltration
The 1-0. 5% of agent 0., surplus are deionized water.
2. a kind of formaldehyde eliminating agent according to claim 1, it is characterised in that the Alfa- cyclodextrin grafting fibers it is oligomeric
The preparation method of peptide, comprises the following steps：
A1, using CTC resins as raw material, using the Fmoc amino acid protected and/or amino acid derivativges as monomer, with TBTU/ HOBt
For condensing agent, it is made after peptide chain to add and cuts peptide reagent and cut peptide, add ether precipitation and crude product is made；By above-mentioned crude product through C18 posts
Isolate and purify, peptide molecule is made；
A2, by certain mass percent, by Alfa- cyclodextrins in deionized water；Sequentially add coupling agent, polypeptide point
Son, at a certain temperature stirring is completed after polycondensation reaction, filtering, dries the oligopeptide of obtained Alfa- cyclodextrin grafting fibers.
3. a kind of formaldehyde eliminating agent according to claim 2, it is characterised in that amino acid in the step A1 and/or
The mass percent of derivative is 95-99%；The mass percent of Alfa- cyclodextrin in the step A2 is 1-5%, coupling agent
Mass percent be 0.05%, the mass percent of peptide molecule is 10-20%, the oligopeptide of Alfa- cyclodextrin grafting fibers it is poly-
Right is 1-10, and reaction temperature is 25 DEG C, and the reaction time is 2-3h.
4. a kind of formaldehyde eliminating agent according to claim 2, it is characterised in that the amino acid is with amino acid derivativges
Alkalescence.
5. a kind of formaldehyde eliminating agent according to claim 2, it is characterised in that the amino acid is L-arginine, L- paddy
One or more in propylhomoserin, 1B, L-Histidine, L- glycine, ALANINE, L-Methionine；The amino acid spreads out
Biology is glutamic acid methyl ester, the burnt paddy hydrochloride of D-Arg methyl ester hydrochloride, L lysine HCL, L-arginine-L-, L- groups
One or more in propylhomoserin methyl esters dihydrochloride.
6. a kind of formaldehyde eliminating agent according to claim 1, it is characterised in that the silver-carrying nano Detitanium-ore-type titanium dioxide
The particle diameter of titanium is 15-30nm, and silver content is 0.1-0.5%wt.
7. a kind of formaldehyde eliminating agent according to claim 1, it is characterised in that the silver-carrying nano Detitanium-ore-type titanium dioxide
The preparation method of titanium, comprises the following steps：
In B1, the silver ammino solution for being made into anatase titanium dioxide, immersion concentration for 2% silver nitrate solution and 2% ethylenediamine,
Water bath method；
B2, by product made from above-mentioned steps, calcine 2 hours, with hydrogen reducing, silver-carrying nano anatase titanium dioxide be made
Finished product.
8. according to claim1-7A kind of preparation method of any described formaldehyde eliminating agent, comprises the following steps：
S1, the oligopeptide mixed dispersant by Alfa- cyclodextrin grafting fibers, are added into deionized water, and mixed liquor A is made in stirring；
S2, by certain mass percent, polyphenol powde stoste is added in above-mentioned mixed liquor A, bleeding agent stirs, is made mixed
Close liquid B；
S3, by certain mass percent, silver-carrying nano anatase titanium dioxide is added to above-mentioned steps S2 mixed liquid B
In, stir, formaldehyde eliminating agent is made.
9. the preparation method of a kind of formaldehyde eliminating agent according to claim 8, it is characterised in that in the step S1
The mass percent of the oligopeptide of Alfa- cyclodextrin grafting fibers is 5-15%, and the mass percent of dispersant is 0.1-0.5%；Step
The mass percent of polyphenol powde stoste is 0.1-0.5% in S2, and the mass percent of bleeding agent is 0.1-0.5%；Carried in step S3
The mass percent of silver nanoparticle anatase titanium dioxide is 1-5%.
10. according to claim8A kind of preparation method of described formaldehyde eliminating agent, it is characterised in that the step S1 reactions
Temperature is 25 DEG C, and the reaction time is 2-3h；Mixing time in step S2 and step S3 is 20-40min.
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| CN108059851A (en) * | 2018-01-17 | 2018-05-22 | 江林（贵州）高科发展股份有限公司 | Modified plant fibers plastic composite that a kind of low aldehyde ketone distributes and application thereof |
| CN108554383A (en) * | 2018-03-26 | 2018-09-21 | 中山市洁鼎过滤制品有限公司 | A kind of room temperature formaldehyde adsorbent and its preparation method and application |
| CN108607194A (en) * | 2018-05-14 | 2018-10-02 | 深圳市尤佳环境科技有限公司 | Long-term effect formaldehyde eliminating agent and preparation method thereof |
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| CN108554383B (en) * | 2018-03-26 | 2021-03-26 | 中山市洁鼎过滤制品有限公司 | Normal-temperature formaldehyde adsorbent and preparation method and application thereof |
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| TWI727640B (en) * | 2020-02-03 | 2021-05-11 | 高雄醫學大學 | Oligopeptide, kit and method for detecting formaldehyde |
| CN111454647A (en) * | 2020-06-01 | 2020-07-28 | 广东希贵光固化材料有限公司 | EB (Epstein-Barr) curing antibacterial coating |
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| CN114904388B (en) * | 2022-04-18 | 2023-08-22 | 广西科技大学 | Ag@ essential oil @ cyclodextrin/bamboo charcoal @ TiO 2 Nanomaterial and application thereof |
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