CN109499041A - A kind of formaldehyde scavenger of high-efficiency environment friendly - Google Patents
A kind of formaldehyde scavenger of high-efficiency environment friendly Download PDFInfo
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- CN109499041A CN109499041A CN201811545205.2A CN201811545205A CN109499041A CN 109499041 A CN109499041 A CN 109499041A CN 201811545205 A CN201811545205 A CN 201811545205A CN 109499041 A CN109499041 A CN 109499041A
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- molecular sieve
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/28—Organic substances containing oxygen, sulfur, selenium or tellurium, i.e. chalcogen
Abstract
The embodiment of the invention discloses a kind of formaldehyde scavenger of high-efficiency environment friendly, the formaldehyde scavenger include by 100 parts by weight high-temperature vapor processing Y type molecular sieve, the nano-titanium dioxide of 5-15 parts by weight, the sesbania gum of 1-20 parts by weight, the NaAc_HAc buffer solution of 1000-3000 parts by weight, the nano iron oxide of 4-20 parts by weight, the nano molybdenum disulfide of 5-30 parts by weight, the organic solvent of 100-500 parts by weight and 50-200 parts by weight foaming agent.The present inventor has been surprisingly found that, is used further to formaldehyde removing after Y type molecular sieve is mixed with nano-titanium dioxide, nano iron oxide, nano molybdenum disulfide again after high-temperature vapor is handled, and is able to extend effective time and the elimination effect of formaldehyde scavenger.In addition, can be improved dispersion effect of the above-mentioned powder in formaldehyde scavenger by the way that sesbania gum, NaAc_HAc buffer solution, organic solvent are added in formaldehyde scavenger, the effect for improving spraying effect and being contacted with wood-based plate.
Description
Technical field
The present embodiments relate to technical field of air purification, and in particular to a kind of formaldehyde scavenger of high-efficiency environment friendly.
Background technique
Formaldehyde scavenger refers to that profession administers product for removing a kind of liquid type of pollution sources and formaldehyde in air.Mainly
Chemical analysis is anion thermoelectricity effect reaction solution, surface-closed agent, active amino etc..
Prior art discloses a kind of formaldehyde scavenger, the formaldehyde scavenger is the amino acid under alkaline condition.This first
Aldehyde scavenger can be loaded in paper, on cloth, be also possible to solid, aqueous solution.The formaldehyde scavenger is used to remove the formaldehyde in air,
It can be used for closing the Form aldehyde release of furniture, finishing material.The formaldehyde scavenger is tasteless, nontoxic, non-volatility, safety and environmental protection.
Prior art discloses a kind of wood-based plate formaldehyde scavenger and preparation method thereof, the formaldehyde scavenger is to adopt
The filmogen on wood-based plate surface layer is covered in brushing, spraying or roller applications, by weight percentage, the formaldehyde removing
Agent includes: ethyleneurea: 10~40%；Film forming agent: 20~30%；Bleeding agent: 0.1~10%；Promotor: 0.1~10%；
Aqueous solvent: 15~60%, this method preparation process is simple, and ethyleneurea is the effective component for removing free formaldehyde in wood-based plate,
It can be completed using ethylenediamine, urea, water through simple operations, remaining ingredient is then dissolved with water respectively, is not only able to achieve people
Make the elimination of free formaldehyde in plate, moreover it is possible to which the effective spilling for stopping free formaldehyde has that elimination factor is high, timeliness is strong, without two
The characteristics such as secondary pollution, great social benefit.
Prior art discloses a kind of methods using natural materials preparation environmental-friendly formaldehyde scavenger, are by aloe, bracketplant
After being crushed with ivy as raw material, by supercritical methanol technology with liquid CO2For solvent, native amino is extracted in the supercritical state
Acid adds sodium dodecyl benzene sulfonate aqueous solution and stirs evenly, environmental-friendly formaldehyde scavenger finished product.Preparation method of the present invention
Extraction efficiency is high, and raw material availability is high, environmentally friendly extractant liquid CO2Itself is natural to extract to surrounding body and environmental nonpollution
To no damage to human body, extraction process is with short production cycle, is easy to continuous and stable production.
Existing formaldehyde scavenger to good air purification effect, but for wood-based plate formaldehyde removing but effect it is poor and
The formaldehyde removing duration is short.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of formaldehyde scavenger of high-efficiency environment friendly, it is provided in an embodiment of the present invention efficient
The formaldehyde scavenger of environmental protection is good to the elimination effect of wood-based plate, and the formaldehyde removing duration is long.
To achieve the goals above, embodiments of the present invention provide the following technical solutions:
In the first aspect of embodiments of the present invention, a kind of formaldehyde scavenger of high-efficiency environment friendly, feature are provided
It is, by weight, the formaldehyde scavenger includes Y type molecular sieve, the 5-15 of the high-temperature vapor processing by 100 parts by weight
The nano-titanium dioxide of parts by weight, the sesbania gum of 1-20 parts by weight, 1000-3000 parts by weight NaAc_HAc buffer solution,
The nano iron oxide of 4-20 parts by weight, the nano molybdenum disulfide of 5-30 parts by weight, 100-500 parts by weight organic solvent and 50-
The foaming agent of 200 parts by weight.
Optionally, the preparation step of the Y type molecular sieve of the high-temperature vapor processing includes: by SiO2/Al2O3Molar ratio
It is handled 5-180 hours under 500-1000 DEG C of vapor for the Y type molecular sieve of 5.1-20.
Optionally, the partial size of the nano-titanium dioxide, nano iron oxide and nano molybdenum disulfide is 1-100 nanometers.
Optionally, by weight, the formaldehyde scavenger includes the Y type of the high-temperature vapor processing by 100 parts by weight
Molecular sieve, the nano-titanium dioxide of 8-12 parts by weight, the sesbania gum of 5-18 parts by weight, 1500-2500 parts by weight acetic acid-acetic acid
Sodium buffer solution, the nano iron oxide of 6-18 parts by weight, the nano molybdenum disulfide of 8-20 parts by weight, 200-400 parts by weight have
The foaming agent of solvent and 70-160 parts by weight.
Optionally, the foaming agent is lauryl sodium sulfate.
Optionally, the pH value of the NaAc_HAc buffer solution is 4-6.
Optionally, the preparation step of the formaldehyde scavenger includes: by the Y type molecular sieve and nanometer of high-temperature vapor processing
Titanium dioxide, nano iron oxide, nano iron oxide and nano molybdenum disulfide are ground after mixing, obtain powder material；
Powder is added at 40-60 DEG C after mixing in pH NaAc_HAc buffer solution and organic solvent, foaming agent and sesbania gum
Material stirs evenly, and then cools to room temperature.
Optionally, the organic solvent is ethyl alcohol and/or propyl alcohol.
Embodiment according to the present invention has the following advantages that
The present inventor has been surprisingly found that, by Y type molecular sieve after high-temperature vapor is handled again with nanometer titanium dioxide
Titanium, nano iron oxide, nano molybdenum disulfide mixing after be used further to formaldehyde removing, be able to extend formaldehyde scavenger effective time and
Elimination effect.In addition, can be mentioned by the way that sesbania gum, NaAc_HAc buffer solution, organic solvent are added in formaldehyde scavenger
Dispersion effect of the high above-mentioned powder in formaldehyde scavenger, the effect for improving spraying effect and being contacted with wood-based plate.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The present invention provides a kind of formaldehyde scavenger of high-efficiency environment friendly, and by weight, the formaldehyde scavenger includes passing through 100
The Y type molecular sieve of the high-temperature vapor processing of parts by weight, the nano-titanium dioxides of 5-15 parts by weight, 1-20 parts by weight sesbania
Glue, the NaAc_HAc buffer solution of 1000-3000 parts by weight, the nano iron oxide of 4-20 parts by weight, 5-30 parts by weight are received
Rice molybdenum disulfide, the organic solvent of 100-500 parts by weight and the foaming agent of 50-200 parts by weight；Preferably, by weight, described
Formaldehyde scavenger includes the nanometer titanium dioxide of the Y type molecular sieve of the high-temperature vapor processing by 100 parts by weight, 8-12 parts by weight
Titanium, the sesbania gum of 5-18 parts by weight, the NaAc_HAc buffer solution of 1500-2500 parts by weight, 6-18 parts by weight nano oxygen
Change the foaming agent of iron, the nano molybdenum disulfide of 8-20 parts by weight, the organic solvent of 200-400 parts by weight and 70-160 parts by weight.
The present inventor has been surprisingly found that, by Y type molecular sieve after high-temperature vapor is handled again with nano-titanium dioxide, nano oxygen
It is used further to formaldehyde removing after changing iron, nano molybdenum disulfide mixing, is able to extend effective time and the elimination effect of formaldehyde scavenger.
In addition, can be improved above-mentioned powder by the way that sesbania gum, NaAc_HAc buffer solution, organic solvent are added in formaldehyde scavenger
Dispersion effect of the end in formaldehyde scavenger, the effect for improving spraying effect and being contacted with wood-based plate.
In the present invention, Y type molecular sieve is the molecular sieve with FAU structure, the internal duct with Nano grade, can
Enter for formaldehyde and carry out catalysis reaction, Y type molecular sieve can generate the hole of a large amount of micron levels after high-temperature vapor is handled
Road, so that a meter titanium dioxide, nano iron oxide, nano molybdenum disulfide be made to be able to enter the catalysis for wherein making formaldehyde and molecular sieve
The contact of the active site of agent center and each nano particle carries out fast reaction, to accelerate formaldehyde → formic acid → water+titanium dioxide
The process of carbon, improves catalytic effect.Specifically, the preparation step of the Y type molecular sieve of the high-temperature vapor processing can wrap
It includes: by SiO2/Al2O3Molar ratio is that the Y type molecular sieve of 5.1-20 is handled 5-180 hours under 500-1000 DEG C of vapor, water
Steam treatment can carry out in hydrothermal calcine furnace, the weight ratio of the flow velocity of water vapour and Y type molecular sieve be 5-15 kilograms of water/
(kilogram molecular sieve hours), the Y type molecular sieve after steam treatment can use dilute hydrochloric acid to be washed to remove aluminium chips.
In the present invention, the nano-titanium dioxide, nano iron oxide and nano molybdenum disulfide are those skilled in the art
Known, nano-titanium dioxide can act synergistically with nano molybdenum disulfide promotes oxidation of formaldehyde for formic acid, and nano oxidized
Iron can together with Y type molecular sieve accelerator activator formic acid be water and carbon dioxide, thus improve formaldehyde removing it is effective when
Between, the partial size of the nano-titanium dioxide, nano iron oxide and nano molybdenum disulfide can be 1-100 nanometers, preferably 1-50
Nanometer, more preferably 1-20 nanometers.
In the present invention, foaming agent improves each powder and contacts with wood-based plate for improving the spraying foaming effect of scavenger
Area, the foaming agent for example can be lauryl sodium sulfate.The viscosity of formaldehyde scavenger can be improved in the sesbania gum,
To improve dispersion effect of each powder in formaldehyde scavenger, and the NaAc_HAc buffer solution can be used for keeping
The pH stable of formaldehyde scavenger, to make the viscosity of formaldehyde scavenger keep within the appropriate range, such as Acetic acid-sodium acetate
The pH value of buffer solution can be 4-6.The organic solvent can cooperate the foaming effect for improving formaldehyde scavenger with foaming agent,
And be conducive to make formaldehyde scavenger to be sprayed rear rapid draing, accelerate the effect for playing formaldehyde scavenger, the organic solvent can be with
For ethyl alcohol and/or propyl alcohol
In the present invention, the preparation step of the formaldehyde scavenger may include: by the Y type molecular sieve of high-temperature vapor processing
It is ground after mixing with nano-titanium dioxide, nano iron oxide, nano iron oxide and nano molybdenum disulfide, obtains powder
Material；PH NaAc_HAc buffer solution and organic solvent, foaming agent and sesbania gum are added at 40-60 DEG C after mixing
Enter powder material, stir evenly, then cools to room temperature.
The present invention will be further illustrated by embodiment below, but it is not thereby limiting the invention.
Y type molecular sieve is purchased from the NaY type molecular sieve of Henan Ming Ze Environmental Protection Technology Co., Ltd in embodiment, and silica alumina ratio is
5.3；Titanium dioxide, nano iron oxide and nanometer molybdenum trisulfide are purchased from Beijing Deco Dao Jin Science and Technology Ltd., nano oxidized
Titanium is nanometer anatase titania, and average grain diameter 5nm, nano iron oxide is nanometer gamma-iron oxide, and average grain diameter is
20nm, nano molybdenum disulfide average grain diameter are 50nm；Sesbania gum, ethyl alcohol and lauryl sodium sulfate are that analysis is pure；Acetic acid-vinegar
Acetic acid is 1mol/L, pH value 5 in sour sodium buffer solution.
Embodiment 1
It takes 15 grams of NaY type molecular sieves to be put into crucible and is to slowly warm up to 800 DEG C in roaster (Malvern company), then
Vapor is passed through with 8 kilograms of water/(kilogram molecular sieve hours) speed and carries out processing 20 hours, room temperature is then down to, using 1
Dry, the Y type molecular sieve as high-temperature vapor processing after the dilute hydrochloric acid washing filtering of weight %.It takes at 10 grams of high-temperature vapors
It carries out after the Y type molecular sieve of reason, 1 gram of nano-titanium dioxide, 1 gram of nano iron oxide, 1 gram of nano molybdenum disulfide mixing using mortar
Grinding 5 minutes, obtains powder material.By 200 grams of NaAc_HAc buffer solutions, 1 gram of sesbania gum, 20 grams of ethyl alcohol and 6 gram 12
It is stirred evenly after sodium alkyl sulfate mixing, is then heated to 45 DEG C in a water bath, powder material is then added and stirs evenly, is formed
Uniform liquid, then cools to room temperature, and obtains formaldehyde scavenger S1.
Embodiment 2
The present embodiment is substantially the same manner as Example 1, the difference is that the temperature of NaY type zeolite-water heat treatment is 500
DEG C, the time is 60 hours, obtains formaldehyde scavenger S2.
Embodiment 3
The present embodiment is substantially the same manner as Example 1, the difference is that the temperature of NaY type zeolite-water heat treatment is 1000
DEG C, the time is 10 hours, obtains formaldehyde scavenger S3.
Embodiment 4
The present embodiment is substantially the same manner as Example 1, the difference is that the Y type molecular sieve of high-temperature vapor processing, nanometer
Titanium dioxide, sesbania gum, NaAc_HAc buffer solution, nano iron oxide, nano molybdenum disulfide, organic solvent and foaming agent
Weight ratio be 100:5:1:1000:4:5:100:50, obtain formaldehyde scavenger S4.
Embodiment 5
The present embodiment is substantially the same manner as Example 1, the difference is that the Y type molecular sieve of high-temperature vapor processing, nanometer
Titanium dioxide, sesbania gum, NaAc_HAc buffer solution, nano iron oxide, nano molybdenum disulfide, organic solvent and foaming agent
Weight ratio be 100:15:20:3000:20:30:500:200, obtain formaldehyde scavenger S5.
Comparative example 1
It is substantially the same manner as Example 1, the difference is that the Y type molecular sieve of high-temperature vapor processing is replaced with identical heavy
The NaY type molecular sieve (roasting 3 hours at 450 DEG C) of amount, obtains formaldehyde scavenger D1.
Comparative example 2
It is substantially the same manner as Example 1, the difference is that nano-titanium dioxide is replaced with the nano oxidized of identical weight
Iron obtains formaldehyde scavenger D2.
Comparative example 3
It is substantially the same manner as Example 1, the difference is that nano iron oxide to be replaced with to the nanometer curing of identical weight
Molybdenum obtains formaldehyde scavenger D3.
Comparative example 3
It is substantially the same manner as Example 1, the difference is that nano molybdenum disulfide to be replaced with to the nano-silica of identical weight
Change titanium, obtains formaldehyde scavenger D4.
Comparative example 5
It is substantially the same manner as Example 1, the difference is that the Acetic acid-sodium acetate that sesbania gum replaces with identical weight is buffered
Solution obtains formaldehyde scavenger D5.
Comparative example 6
It is substantially the same manner as Example 1, the difference is that the Acetic acid-sodium acetate that organic solvent replaces with identical weight is delayed
Solution is rushed, formaldehyde scavenger D6 is obtained.
Comparative example 7
It is substantially the same manner as Example 1, the difference is that the Acetic acid-sodium acetate that foaming agent replaces with identical weight is buffered
Solution obtains formaldehyde scavenger D7.
Comparative example 8
It is substantially the same manner as Example 1, the difference is that NaAc_HAc buffer solution is replaced with identical weight
Water obtains formaldehyde scavenger D8.
It is measured using " test method of GB/T 35239-2017 wood-based plate and its product formaldehyde scavenger Scavenging activity "
Formaldehyde removing rate, standing time is respectively 24 hours, 48 hours, 120 hours, 240 hours according to national standard after spraying when test
With 480 hours, spraying the time that sample and comparative sample seal in vinyl hermetic bag is 24 hours constant.Detection is used artificial
Plate moisture content is 14.5%, having a size of 1.8cm × 10cm × 10cm, density 0.65cm3/ g, burst size of methanal 15.4mg/
100g.Specific test result is shown in Table 1.
Table 1
As it can be seen from table 1 formaldehyde scavenger provided by the invention has good artificial board formaldehyde elimination effect, and
The continuous and effective time is long.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (8)
1. a kind of formaldehyde scavenger of high-efficiency environment friendly, which is characterized in that by weight, the formaldehyde scavenger includes passing through 100
The Y type molecular sieve of the high-temperature vapor processing of parts by weight, the nano-titanium dioxides of 5-15 parts by weight, 1-20 parts by weight sesbania
Glue, the NaAc_HAc buffer solution of 1000-3000 parts by weight, the nano iron oxide of 4-20 parts by weight, 5-30 parts by weight are received
Rice molybdenum disulfide, the organic solvent of 100-500 parts by weight and the foaming agent of 50-200 parts by weight.
2. formaldehyde scavenger according to claim 1, which is characterized in that the Y type molecular sieve of the high-temperature vapor processing
Preparation step include: by SiO2/Al2O3Molar ratio is that the Y type molecular sieve of 5.1-20 is handled under 500-1000 DEG C of vapor
5-180 hours.
3. formaldehyde scavenger according to claim 1, which is characterized in that the nano-titanium dioxide, nano iron oxide and
The partial size of nano molybdenum disulfide is 1-100 nanometers.
4. formaldehyde scavenger according to claim 1, which is characterized in that by weight, the formaldehyde scavenger includes warp
Cross the Y type molecular sieve of the high-temperature vapor processing of 100 parts by weight, the nano-titanium dioxides of 8-12 parts by weight, 5-18 parts by weight
Sesbania gum, the NaAc_HAc buffer solution of 1500-2500 parts by weight, the nano iron oxide of 6-18 parts by weight, 8-20 parts by weight
Nano molybdenum disulfide, the organic solvent of 200-400 parts by weight and the foaming agent of 70-160 parts by weight.
5. formaldehyde scavenger according to claim 1-4, which is characterized in that the foaming agent is dodecyl sulphur
Sour sodium.
6. formaldehyde scavenger according to claim 1-4, which is characterized in that the Acetic acid-sodium acetate buffering is molten
The pH value of liquid is 4-6.
7. formaldehyde scavenger according to claim 1, which is characterized in that the preparation step of the formaldehyde scavenger includes:
By the Y type molecular sieve and nano-titanium dioxide, nano iron oxide, nano iron oxide and nano molybdenum disulfide of high-temperature vapor processing
It is ground after mixing, obtains powder material；By pH NaAc_HAc buffer solution and organic solvent, foaming agent and field
Powder material is added at 40-60 DEG C after mixing in cyanines glue, stirs evenly, then cools to room temperature.
8. formaldehyde scavenger according to claim 1, which is characterized in that the organic solvent is ethyl alcohol and/or propyl alcohol.
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| CN114471146A (en) * | 2022-02-10 | 2022-05-13 | 杭州妙蓝环保科技有限公司 | Green odorless formaldehyde scavenger and preparation method thereof |
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