CN108970392A - A kind of formaldehyde cleaning coating liquid - Google Patents
A kind of formaldehyde cleaning coating liquid Download PDFInfo
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- CN108970392A CN108970392A CN201810727175.0A CN201810727175A CN108970392A CN 108970392 A CN108970392 A CN 108970392A CN 201810727175 A CN201810727175 A CN 201810727175A CN 108970392 A CN108970392 A CN 108970392A
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- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
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Abstract
The invention discloses a kind of formaldehyde to clean coating liquid, belongs to environment protection field.The present invention takes 15 ~ 30 parts of acetone, 18 ~ 35 parts of CH3NH2, 8 ~ 14 parts of urea, 8 ~ 15 parts of regulators, 3 ~ 8 parts of auxiliary agents, 3 ~ 8 parts of biogums, 35 ~ 50 parts of compound photodissociation base-materials, 20 ~ 40 parts of composite molecular screen carriers, 50 ~ 70 parts of water；Acetone, CH are taken in 30 ~ 45 DEG C of water-bath3NH2, composite molecular screen carrier, auxiliary agent, water mixing, 30 ~ 55min is stirred with 250 ~ 350r/min, it is warming up to 50 ~ 65 DEG C, compound photodissociation base-material, regulator, biogum, urea mixing is added, ultrasonic wave disperses 10 ~ 15min, dispersion liquid is obtained, the 30 ~ 45% of original volume is concentrated in vacuo to get formaldehyde and cleans coating liquid.The present invention solves common formaldehyde lotion PARA FORMALDEHYDE PRILLS(91,95) processing at present and acts on single, and the inapparent problem of elimination effect.
Description
Technical field
The invention belongs to environment protection fields, and in particular to a kind of formaldehyde cleaning coating liquid.
Background technique
Formaldehyde is commonly called as formaldehyde, is irritative gas colourless, with overpowering odor.Formaldehyde is a kind of important organic original
Material, the annual tens million of tons of formaldehyde total output in the whole world, wherein 60% or more is used for timber and building relevant industries, such as ureaformaldehyde tree
Rouge, phenolic resin, melamine-formaldehyde, amido mela mine-formaldehyde resin, adhesive and curing agent etc., 5% floats as shirt to related clothing
White dose, dressing agent, hardening accelerator, the consumption such as crease-resistant additive is in textile industry.Field is fitted up indoors, is used for indoor ornamentation
In the artificial boards such as glued board, core-board, medium density fibre board (MDF) and particieboard, the adhesive used be with formaldehyde be mainly at
Point Lauxite, remaining formaldehyde can gradually be discharged to ambient enviroment in plate.Be cause Formaldehyde Pollution of Indoor Air it is main come
Source.Therefore, when people enter these environment, one irritating smell can always be smelt.
Formaldehyde cleaning coating liquid then refers to profession for removing the improvement product of pollution sources and formaldehyde in air.Market at present
On there are a variety of products except formaldehydes, summary, which sums up, is basically divided into 3 classes: can aoxidize the oxidant of formaldehyde, such as mistake
Boratex, hypochlorous acid, hydrogen peroxide etc., such oxidant oxidize the formaldehyde into formic acid, to reduce the burst size of formaldehyde；Nucleophilic
Reagent has the derivative of ammonia, such as urea, semicarbazides；Compound with methine active hydrogen (α-H), such as malonic acid dimethyl
Vinegar, methyl acetoacetate；Alcohols, phenols etc., nucleophilic easily attack the carbonyl in aldehydes molecule, and it is anti-that nucleophilic addition occurs with aldehydes
It answers；Catalyst, catalysis formaldehyde are reacted with oxygen in air, generate carbon dioxide and water, mainly have photocatalysis and noble metal to urge
Change.
It can be reacted at present with formaldehyde in formaldehyde scavenger mostly using nucleopilic reagents such as urea, but PARA FORMALDEHYDE PRILLS(91,95) processing acts on
It is single, and elimination effect is not significant.Therefore, the formaldehyde cleaning coating liquid for producing a kind of more efficient fruit has very big market to need
It asks.
Summary of the invention
The technical problems to be solved by the invention: acted on for current common formaldehyde lotion PARA FORMALDEHYDE PRILLS(91,95) processing it is single, and
The inapparent problem of elimination effect provides a kind of formaldehyde cleaning coating liquid.
In order to solve the above technical problems, the present invention is using technical solution as described below:
A kind of formaldehyde cleaning coating liquid, according to the mass fraction, including following component: 15 ~ 30 parts of acetone, 18 ~ 35 parts of CH3NH2、8~
14 parts of urea, 8 ~ 15 parts of regulators, 3 ~ 8 parts of auxiliary agents, 3 ~ 8 parts of biogums, 50 ~ 70 parts of water, which is characterized in that further include 35 ~ 50
The compound photodissociation base-material of part, 20 ~ 40 parts of composite molecular screen carriers.
The preparation method of the compound photodissociation base-material, includes the following steps:
(1) 1:10 ~ 15 take 3- chloroaniline, water mixing in mass ratio, and butyl titanate, the 3- of 2 ~ 5 times of 3- chloroaniline quality is added
The toluene of the oleic acid, 7 ~ 12 times of 3- chloroaniline quality that 1 ~ 3 times of chloroaniline quality is mixed, and obtains mixed liquor, takes at mixed liquor heat
Reason, filtering, takes filter residue to be rinsed with methanol, takes the 1:3 in mass ratio ~ 5 of the filter residue after washing that methanol mixing is added, and ultrasonic wave dispersion obtains
Dispersion liquid；
(2) 1:4 ~ 8 take Fe (NO in mass ratio3)3·9H2Dispersion liquid is added in O, is stirred, still aging, filters, and takes filter residue dry
It is dry, dried object is obtained, takes dried object 6:0.04 in mass ratio ~ 0.08 that BiVO is added4Mixing, ball milling obtain ball milling material, and ball milling material is taken to roast
It burns, it is cooling, obtain calcining matter；
(3) take polyvinyl alcohol 1:20 ~ 35:0.1 in mass ratio ~ 0.3:0.5 that water, calcining matter, lac mixing, ultrasonic wavelength-division is added
It dissipates, the additive of roasting amount of substance 3 ~ 6% is added, roasts the surfactant of amount of substance 4 ~ 8%, shearing dispersion is to get complex light
Solve base-material.
Additive in the step (3): 4:1 ~ 2 take succinylated monoglyceride, OP-10 mixing to get adding in mass ratio
Add agent.
Surfactant in the step (3): 3:1 ~ 2 take stearic acid polyoxyethylene ether, laruyl alcohol sulfuric acid in mass ratio
Ester sodium mixes to get surfactant.
The preparation of the composite molecular screen carrier: in 40 ~ 55 DEG C, 1:8 ~ 12 take Na in mass ratio2SiO3·9H2O, water is mixed
It closes, adjusts pH, Na is added2SiO3·9H2The template of O mass 5 ~ 10% mixes, crystallization, filters, takes filter residue and drying, obtain drying
Object takes dried object to calcine, and obtains calcined material, takes calcined material 1:3 in mass ratio ~ 6 that solvent is added and is mixed, ultrasonic wave dispersion, rotation
Turn evaporation, be concentrated under reduced pressure, is freeze-dried to get composite molecular screen carrier.
The template: cetyl trimethylammonium bromide, ethylenediamine, any one in n-butylamine.
The solvent: 4:1:20 ~ 30 take nickel nitrate, calcium chloride, water mixing to get solvent in mass ratio.
The regulator: urea, ammonium chloride, potassium dihydrogen phosphate, any two kinds in dipotassium hydrogen phosphate.
The auxiliary agent: diatomite, bentonite, any one in clay.
The biogum: peach gum, xanthan gum, any one in lac.
The present invention is compared with other methods, and advantageous effects are:
The present invention is using butyl titanate as titanium source nano-TiO2, cooperate nickel, BiVO4Compound photodissociation base-material is made, improves nanometer
TiO2The specific surface area of base-material enhances the compound feature of electron-hole, can effectively adsorb, degradation of formaldehyde CO2, greatly reinforce
The treatment effect of PARA FORMALDEHYDE PRILLS(91,95), with Na2SiO3·9H2O is silicon source composite molecular screen carrier, is remarkably improved the absorption of PARA FORMALDEHYDE PRILLS(91,95)
Ability can assign coating liquid system Coulomb field and polarity with orderly aligned cellular structure and big specific surface area, can
It is polarized by electrostatic interaction inducing molecule, there is very strong selection suction-operated, point for the C=O polar group of PARA FORMALDEHYDE PRILLS(91,95) contained
The very strong suction-operated of son, and the reaction forward of formaldehyde and urea can be pushed to carry out, improve the conversion of formaldehyde, TiO2There is suppression again
Bacterium, antisepsis reduce the generation of germ, added acetone and CH to furniture protective effect3NH2, can be in other ingredient bases
Expect, in the case where aqueous and absorption formaldehyde, Mannich reaction occurs therewith, generates stable Beta-aminoketones compound, handles
It is convenient, safely absorb formaldehyde.
Specific embodiment
Additive: 4:1 ~ 2 take succinylated monoglyceride, OP-10 mixing to get additive in mass ratio.
Regulator: urea, ammonium chloride, potassium dihydrogen phosphate, any two kinds in dipotassium hydrogen phosphate.
Surfactant: 3:1 ~ 2 take stearic acid polyoxyethylene ether, laruyl alcohol sodium sulfovinate mixing to get table in mass ratio
Face activating agent.
Template: cetyl trimethylammonium bromide, ethylenediamine, any one in n-butylamine.
Auxiliary agent: diatomite, bentonite, any one in clay.
Solvent: 4:1:20 ~ 30 take nickel nitrate, calcium chloride, water mixing to get solvent in mass ratio.
Biogum: peach gum, xanthan gum, any one in lac.
The preparation method of compound photodissociation base-material, includes the following steps:
(1) 1:10 ~ 15 take 3- chloroaniline, water to mix in the reaction kettle of polytetrafluoroethyllining lining in mass ratio, add 3- chlorobenzene
The toluene mixing of the oleic acid, 7 ~ 12 times of 3- chloroaniline quality of the butyl titanate, 1 ~ 3 times of 3- chloroaniline quality that 2 ~ 5 times of amine quality,
With 300 ~ 350r/min stir 25 ~ 50min, obtain mixed liquor, take mixed liquor in Muffle furnace, with 200 ~ 230 DEG C heat treatment 10 ~
12h, filtering, takes filter residue to be rinsed with methanol, takes the 1:3 in mass ratio ~ 5 of the filter residue after washing that methanol is added and mixes, and ultrasonic wave dispersion 10 ~
15min obtains dispersion liquid；
(2) 1:4 ~ 8 take Fe (NO in mass ratio3)3·9H2Dispersion liquid is added in O, with 200 ~ 250r/min magnetic agitation 20 ~ for 24 hours, in
Still aging 7 ~ 10h at 20 ~ 25 DEG C filters, filter residue is taken, with 90 ~ 100 DEG C of dry 10 ~ 12h, to obtain dried object in baking oven, take drying
BiVO is added in object 6:0.04 in mass ratio ~ 0.084Mixing, with 300 ~ 350r/min, 25 ~ 45min of ball milling, obtains ball milling material, takes ball milling
Expect that, in container, with 400 ~ 500 DEG C of 3 ~ 5h of roasting, cooled to room temperature obtains calcining matter；
(3) take polyvinyl alcohol 1:20 ~ 35:0.1 in mass ratio ~ 0.3:0.5 that water, calcining matter, lac mixing, ultrasonic wave dispersion is added
15 ~ 25min is added the additive of roasting amount of substance 3 ~ 6%, roasts the surfactant of amount of substance 4 ~ 8%, with 800 ~ 900r/min
10 ~ 15min is to get compound photodissociation base-material for shearing dispersion.
The preparation of composite molecular screen carrier: in 40 ~ 55 DEG C of water-bath, 1:8 ~ 12 take Na in mass ratio2SiO3·9H2O, go from
Sub- water mixing, is slowly added to the sulfuric acid solution of concentration 0.01mol/L, adjusts pH to 9 ~ 10, Na is added2SiO3·9H2O mass 5 ~
10% template mixing, moves in the reaction kettle of polytetrafluoroethyllining lining, in 140 ~ 150 DEG C of crystallization 20 ~ for 24 hours, filters, takes filter
Slag in 70 ~ 85 DEG C of baking ovens dry to water content 1% hereinafter, dried object, take dried object in Muffle furnace with 450 ~ 600 DEG C
4 ~ 7h is calcined, calcined material is obtained, takes calcined material 1:3 in mass ratio ~ 6 that solvent is added and is mixed, ultrasonic wave disperses 10 ~ 15min, rotation
Turn evaporation, be concentrated under reduced pressure, freeze-drying is at -80 DEG C to get composite molecular screen carrier.
A kind of formaldehyde cleaning coating liquid, according to the mass fraction, including following component: 15 ~ 30 parts of acetone, 18 ~ 35 parts
CH3NH2, 8 ~ 14 parts of urea, 8 ~ 15 parts of regulators, 3 ~ 8 parts of auxiliary agents, 3 ~ 8 parts of biogums, 50 ~ 70 parts of water, which is characterized in that also wrap
Include 35 ~ 50 parts of compound photodissociation base-materials, 20 ~ 40 parts of composite molecular screen carriers.
A kind of preparation method of formaldehyde cleaning coating liquid, includes the following steps:
(1) according to the mass fraction, 15 ~ 30 parts of acetone, 18 ~ 35 parts of CH are taken3NH2, 8 ~ 14 parts of urea, 8 ~ 15 parts of regulators, 3 ~ 8 parts
Auxiliary agent, 3 ~ 8 parts of biogums, 35 ~ 50 parts of compound photodissociation base-materials, 20 ~ 40 parts of composite molecular screen carriers, 50 ~ 70 parts of water；
(2) acetone, CH are taken in 30 ~ 45 DEG C of water-bath3NH2, composite molecular screen carrier, auxiliary agent, water mixing, stirred with 250 ~ 350r/min
30 ~ 55min is mixed, is warming up to 50 ~ 65 DEG C, compound photodissociation base-material, regulator, biogum, urea mixing, ultrasonic wave dispersion 10 is added
~ 15min, obtains dispersion liquid, is concentrated in vacuo to the 30 ~ 45% of original volume to get formaldehyde and cleans coating liquid.
Embodiment 1
Additive: 4:1 in mass ratio takes succinylated monoglyceride, OP-10 mixing to get additive.
Regulator: urea, ammonium chloride.
Surfactant: 3:1 in mass ratio takes stearic acid polyoxyethylene ether, laruyl alcohol sodium sulfovinate mixing to get surface
Activating agent.
Template: cetyl trimethylammonium bromide.
Auxiliary agent: diatomite.
Solvent: 4:1:20 in mass ratio takes nickel nitrate, calcium chloride, water mixing to get solvent.
Biogum: peach gum.
The preparation method of compound photodissociation base-material, includes the following steps:
(1) 1:10 in mass ratio takes 3- chloroaniline, water to mix in the reaction kettle of polytetrafluoroethyllining lining, adds 3- chloroaniline matter
The toluene mixing of the butyl titanate of 2 times of amount, the oleic acid of 1 times of 3- chloroaniline quality, 7 times of 3- chloroaniline quality, with 300r/min
25min is stirred, mixed liquor is obtained, takes mixed liquor in Muffle furnace, with 200 DEG C of heat treatment 10h, filtering takes filter residue to be rinsed with methanol,
Take the 1:3 in mass ratio of the filter residue after washing that methanol mixing is added, ultrasonic wave disperses 10min, obtains dispersion liquid；
(2) 1:4 in mass ratio takes Fe (NO3)3·9H2Dispersion liquid is added in O, quiet at 20 DEG C with 200r/min magnetic agitation 20h
Ageing 7h is set, filters, filter residue is taken, with 90 DEG C of dry 10h, to obtain dried object in baking oven, dried object 6:0.04 in mass ratio is taken to be added
BiVO4Mixing, with 300r/min ball milling 25min, obtains ball milling material, takes ball milling material in container, with 400 DEG C of roasting 3h, natural cooling
To room temperature, calcining matter is obtained；
(3) take polyvinyl alcohol 1:20:0.1:0.5 in mass ratio that water, calcining matter, lac mixing is added, ultrasonic wave disperses 15min,
The additive of roasting amount of substance 3% is added, roasts the surfactant of amount of substance 4%, dispersion 10min is sheared with 800r/min, i.e.,
Obtain compound photodissociation base-material.
The preparation of composite molecular screen carrier: in 40 DEG C of water-bath, 1:8 takes Na in mass ratio2SiO3·9H2O, deionized water is mixed
It closes, is slowly added to the sulfuric acid solution of concentration 0.01mol/L, adjust pH to 9, Na is added2SiO3·9H2The template of O mass 5% is mixed
It closes, moves in the reaction kettle of polytetrafluoroethyllining lining, in 140 DEG C of crystallization 20h, filter, filter residue is taken to dry extremely in 70 DEG C of baking ovens
Water content 1% hereinafter, dried object, take dried object, with 450 DEG C of calcining 4h, to obtain calcined material in Muffle furnace, take calcined material by matter
Amount is added solvent than 1:3 and is mixed, and ultrasonic wave disperses 10min, and rotary evaporation is concentrated under reduced pressure, is freeze-dried at -80 DEG C,
Up to composite molecular screen carrier.
A kind of formaldehyde cleaning coating liquid, according to the mass fraction, including following component: 15 parts of acetone, 18 parts of CH3NH2, 8 parts of urine
Element, 8 parts of regulators, 3 parts of auxiliary agents, 3 parts of biogums, 50 parts of water, which is characterized in that further include 35 parts of compound photodissociation base-materials, 20 parts
Composite molecular screen carrier.
A kind of preparation method of formaldehyde cleaning coating liquid, includes the following steps:
(1) according to the mass fraction, 15 parts of acetone, 18 parts of CH are taken3NH2, 8 parts of urea, 8 parts of regulators, 3 parts of auxiliary agents, 3 parts of biologies
Glue, 35 parts of compound photodissociation base-materials, 20 parts of composite molecular screen carriers, 50 parts of water；
(2) acetone, CH are taken in 30 DEG C of water-bath3NH2, composite molecular screen carrier, auxiliary agent, water mixing, stirred with 250r/min
30min is warming up to 50 DEG C, and compound photodissociation base-material, regulator, biogum, urea mixing is added, and ultrasonic wave disperses 10min, score
Dispersion liquid is concentrated in vacuo to the 30% of original volume to get formaldehyde and cleans coating liquid.
Embodiment 2
Additive: 4:2 in mass ratio takes succinylated monoglyceride, OP-10 mixing to get additive.
Regulator: potassium dihydrogen phosphate, dipotassium hydrogen phosphate.
Surfactant: 3:2 in mass ratio takes stearic acid polyoxyethylene ether, laruyl alcohol sodium sulfovinate mixing to get surface
Activating agent.
Template: ethylenediamine.
Auxiliary agent: bentonite.
Solvent: 4:1:30 in mass ratio takes nickel nitrate, calcium chloride, water mixing to get solvent.
Biogum: xanthan gum.
The preparation method of compound photodissociation base-material, includes the following steps:
(1) 1:15 in mass ratio takes 3- chloroaniline, water to mix in the reaction kettle of polytetrafluoroethyllining lining, adds 3- chloroaniline matter
The toluene mixing of the butyl titanate of 5 times of amount, the oleic acid of 3 times of 3- chloroaniline quality, 12 times of 3- chloroaniline quality, with 350r/min
50min is stirred, mixed liquor is obtained, takes mixed liquor in Muffle furnace, with 230 DEG C of heat treatment 12h, filtering takes filter residue to be rinsed with methanol,
Take the 1:5 in mass ratio of the filter residue after washing that methanol mixing is added, ultrasonic wave disperses 15min, obtains dispersion liquid；
(2) 1:8 in mass ratio takes Fe (NO3)3·9H2Dispersion liquid is added in O, for 24 hours with 250r/min magnetic agitation, quiet at 25 DEG C
Ageing 10h is set, filters, filter residue is taken, with 100 DEG C of dry 12h, to obtain dried object in baking oven, dried object 6:0.08 in mass ratio is taken to be added
BiVO4Mixing, with 350r/min ball milling 45min, obtains ball milling material, takes ball milling material in container, with 500 DEG C of roasting 5h, natural cooling
To room temperature, calcining matter is obtained；
(3) take polyvinyl alcohol 1:35:0.3:0.5 in mass ratio that water, calcining matter, lac mixing is added, ultrasonic wave disperses 25min,
The additive of roasting amount of substance 6% is added, roasts the surfactant of amount of substance 8%, dispersion 15min is sheared with 900r/min, i.e.,
Obtain compound photodissociation base-material.
The preparation of composite molecular screen carrier: in 55 DEG C of water-bath, 1:12 takes Na in mass ratio2SiO3·9H2O, deionized water is mixed
It closes, is slowly added to the sulfuric acid solution of concentration 0.01mol/L, adjust pH to 10, Na is added2SiO3·9H2The template of O mass 10%
Mixing, moves in the reaction kettle of polytetrafluoroethyllining lining, for 24 hours in 150 DEG C of crystallization, filters, and takes filter residue dry in 85 DEG C of baking ovens
To water content 1% hereinafter, dried object, take dried object, with 600 DEG C of calcining 7h, to obtain calcined material in Muffle furnace, take calcined material by
Mass ratio 1:6 is added solvent and is mixed, and ultrasonic wave disperses 15min, and rotary evaporation is concentrated under reduced pressure, and freezes at -80 DEG C dry
It is dry to get composite molecular screen carrier.
A kind of formaldehyde cleaning coating liquid, according to the mass fraction, including following component: 30 parts of acetone, 35 parts of CH3NH2, 14 parts
Urea, 15 parts of regulators, 8 parts of auxiliary agents, 8 parts of biogums, 70 parts of water, which is characterized in that further include 50 parts of compound photodissociation base-materials, 40
Part composite molecular screen carrier.
A kind of preparation method of formaldehyde cleaning coating liquid, includes the following steps:
(1) according to the mass fraction, 30 parts of acetone, 35 parts of CH are taken3NH2, 14 parts of urea, 15 parts of regulators, 8 parts of auxiliary agents, 8 parts of biologies
Glue, 50 parts of compound photodissociation base-materials, 40 parts of composite molecular screen carriers, 70 parts of water；
(2) acetone, CH are taken in 45 DEG C of water-bath3NH2, composite molecular screen carrier, auxiliary agent, water mixing, stirred with 350r/min
55min is warming up to 65 DEG C, and compound photodissociation base-material, regulator, biogum, urea mixing is added, and ultrasonic wave disperses 15min, score
Dispersion liquid is concentrated in vacuo to the 45% of original volume to get formaldehyde and cleans coating liquid.
Embodiment 3
Additive: 4:1 in mass ratio takes succinylated monoglyceride, OP-10 mixing to get additive.
Regulator: ammonium chloride, potassium dihydrogen phosphate.
Surfactant: 3:1 in mass ratio takes stearic acid polyoxyethylene ether, laruyl alcohol sodium sulfovinate mixing to get surface
Activating agent.
Template: n-butylamine.
Auxiliary agent: clay.
Solvent: 4:1:25 in mass ratio takes nickel nitrate, calcium chloride, water mixing to get solvent.
Biogum: lac.
The preparation method of compound photodissociation base-material, includes the following steps:
(1) 1:13 in mass ratio takes 3- chloroaniline, water to mix in the reaction kettle of polytetrafluoroethyllining lining, adds 3- chloroaniline matter
The toluene mixing of the butyl titanate of 3 times of amount, the oleic acid of 2 times of 3- chloroaniline quality, 9 times of 3- chloroaniline quality, with 325r/min
32min is stirred, mixed liquor is obtained, takes mixed liquor in Muffle furnace, with 215 DEG C of heat treatment 11h, filtering takes filter residue to be rinsed with methanol,
Take the 1:4 in mass ratio of the filter residue after washing that methanol mixing is added, ultrasonic wave disperses 13min, obtains dispersion liquid；
(2) 1:6 in mass ratio takes Fe (NO3)3·9H2Dispersion liquid is added in O, quiet at 23 DEG C with 225r/min magnetic agitation 22h
Ageing 6h is set, filters, filter residue is taken, with 95 DEG C of dry 11h, to obtain dried object in baking oven, dried object 6:0.06 in mass ratio is taken to be added
BiVO4Mixing, with 325r/min ball milling 35min, obtains ball milling material, takes ball milling material in container, with 450 DEG C of roasting 4h, natural cooling
To room temperature, calcining matter is obtained；
(3) take polyvinyl alcohol 1:27:0.2:0.5 in mass ratio that water, calcining matter, lac mixing is added, ultrasonic wave disperses 20min,
The additive of roasting amount of substance 4% is added, roasts the surfactant of amount of substance 6%, dispersion 13min is sheared with 850r/min, i.e.,
Obtain compound photodissociation base-material.
The preparation of composite molecular screen carrier: in 47 DEG C of water-bath, 1:10 takes Na in mass ratio2SiO3·9H2O, deionized water is mixed
It closes, is slowly added to the sulfuric acid solution of concentration 0.01mol/L, adjust pH to 9, Na is added2SiO3·9H2The template of O mass 7% is mixed
It closes, moves in the reaction kettle of polytetrafluoroethyllining lining, in 145 DEG C of crystallization 22h, filter, filter residue is taken to dry extremely in 77 DEG C of baking ovens
Water content 1% hereinafter, dried object, take dried object, with 520 DEG C of calcining 6h, to obtain calcined material in Muffle furnace, take calcined material by matter
Amount is added solvent than 1:5 and is mixed, and ultrasonic wave disperses 13min, and rotary evaporation is concentrated under reduced pressure, is freeze-dried at -80 DEG C,
Up to composite molecular screen carrier.
A kind of formaldehyde cleaning coating liquid, according to the mass fraction, including following component: 22 parts of acetone, 26 parts of CH3NH2, 11 parts
Urea, 12 parts of regulators, 6 parts of auxiliary agents, 6 parts of biogums, 60 parts of water, which is characterized in that further include 42 parts of compound photodissociation base-materials, 30
Part composite molecular screen carrier.
A kind of preparation method of formaldehyde cleaning coating liquid, includes the following steps:
(1) according to the mass fraction, 22 parts of acetone, 22 parts of CH are taken3NH2, 11 parts of urea, 11 parts of regulators, 6 parts of auxiliary agents, 6 parts of biologies
Glue, 42 parts of compound photodissociation base-materials, 30 parts of composite molecular screen carriers, 60 parts of water；
(2) acetone, CH are taken in 37 DEG C of water-bath3NH2, composite molecular screen carrier, auxiliary agent, water mixing, stirred with 300r/min
42min is warming up to 57 DEG C, and compound photodissociation base-material, regulator, biogum, urea mixing is added, and ultrasonic wave disperses 13min, score
Dispersion liquid is concentrated in vacuo to the 37% of original volume to get formaldehyde and cleans coating liquid.
Comparative example 1: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking compound photodissociation base-material.
Comparative example 2: it is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking composite molecular screen carrier.
Comparative example 3: the formaldehyde scavenger of Shanghai City company production.
The formaldehyde scavenger of the cleaning coating liquid of formaldehyde obtained by examples detailed above and comparative example is detected, is closed the doors and windows 12 small
When, indoor formaldehyde concentration before measurement is degraded, then respectively using the present invention with product continuing purge 6 hours of comparative example after close door
Window according to said method repeats to choose sample room, record concentration of formaldehyde data after one month, method of sampling reference GB/T18883-2002,
Sampling instrument is binary channels air sampling apparatus (DS-H2), and sampling flow is set as 200ml/min, and the sampling time is set as 50min, measurement
Method uses phenol reagent method, and referring to GB/T18204.26-2000, indoor formaldehyde standard is referring to indoor air quality mark
Quasi- GB/T18883-2002.Test result such as table 1.
Table 1:
Security test:
Acute oral toxicity test buys mouse 20, elder brother referring to the 2.3.1.5.2 articles of " disinfection technology standard " (version in 2002)
Bright kind of mouse, half male and half female, small white mouse are filled with the formaldehyde of the present invention cleaning coating liquid dosage of 5000mg/kg by 18 ~ 22 grams of weight
Stomach, daily stomach-filling is primary, is observed continuously 3 weeks, observes small white mouse acute toxic reaction and death condition after stomach-filling.As a result: 21 days
Gait is normal freely for interior small white mouse activity, does not occur adnormal respiration, and no an example is dead.
In summary, formaldehyde of the invention cleaning coating liquid removing effect of formaldehyde is good and safe and non-toxic, and being worthy to be popularized makes
With.
Claims (10)
1. a kind of formaldehyde cleans coating liquid, according to the mass fraction, including following component: 15 ~ 30 parts of acetone, 18 ~ 35 parts of CH3NH2、8
~ 14 parts of urea, 8 ~ 15 parts of regulators, 3 ~ 8 parts of auxiliary agents, 3 ~ 8 parts of biogums, 50 ~ 70 parts of water, which is characterized in that further include 35 ~ 50
The compound photodissociation base-material of part, 20 ~ 40 parts of composite molecular screen carriers.
2. a kind of formaldehyde cleans coating liquid according to claim 1, which is characterized in that the preparation side of the compound photodissociation base-material
Method includes the following steps:
(1) 1:10 ~ 15 take 3- chloroaniline, water mixing in mass ratio, and butyl titanate, the 3- of 2 ~ 5 times of 3- chloroaniline quality is added
The toluene of the oleic acid, 7 ~ 12 times of 3- chloroaniline quality that 1 ~ 3 times of chloroaniline quality is mixed, and obtains mixed liquor, takes at mixed liquor heat
Reason, filtering, takes filter residue to be rinsed with methanol, takes the 1:3 in mass ratio ~ 5 of the filter residue after washing that methanol mixing is added, and ultrasonic wave dispersion obtains
Dispersion liquid；
(2) 1:4 ~ 8 take Fe (NO in mass ratio3)3·9H2Dispersion liquid is added in O, is stirred, still aging, filters, and takes filter residue dry
It is dry, dried object is obtained, takes dried object 6:0.04 in mass ratio ~ 0.08 that BiVO is added4Mixing, ball milling obtain ball milling material, and ball milling material is taken to roast
It burns, it is cooling, obtain calcining matter；
(3) take polyvinyl alcohol 1:20 ~ 35:0.1 in mass ratio ~ 0.3:0.5 that water, calcining matter, lac mixing, ultrasonic wavelength-division is added
It dissipates, the additive of roasting amount of substance 3 ~ 6% is added, roasts the surfactant of amount of substance 4 ~ 8%, shearing dispersion is to get complex light
Solve base-material.
3. a kind of formaldehyde cleans coating liquid according to claim 2, which is characterized in that the additive in the step (3): press
Mass ratio 4:1 ~ 2 take succinylated monoglyceride, OP-10 mixing to get additive.
4. a kind of formaldehyde cleans coating liquid according to claim 2, which is characterized in that the surface-active in the step (3)
Agent: 3:1 ~ 2 take stearic acid polyoxyethylene ether, laruyl alcohol sodium sulfovinate mixing to get surfactant in mass ratio.
5. a kind of formaldehyde cleans coating liquid according to claim 1, which is characterized in that the system of the composite molecular screen carrier
Standby: in 40 ~ 55 DEG C, 1:8 ~ 12 take Na in mass ratio2SiO3·9H2O, water mixes, and adjusts pH, and Na is added2SiO3·9H2O mass 5
~ 10% template mixing, crystallization filter, take filter residue and drying, obtain dried object, dried object is taken to calcine, obtain calcined material, take calcined material
1:3 in mass ratio ~ 6 is added solvent and is mixed, and ultrasonic wave dispersion, rotary evaporation is concentrated under reduced pressure, and is freeze-dried to get compound
Molecular sieve carrier.
6. a kind of formaldehyde cleans coating liquid according to claim 5, which is characterized in that the template: cetyl front three
Base ammonium bromide, ethylenediamine, any one in n-butylamine.
7. a kind of formaldehyde cleans coating liquid according to claim 5, which is characterized in that the solvent: 4:1:20 in mass ratio ~
30 take nickel nitrate, calcium chloride, water mixing to get solvent.
8. a kind of formaldehyde cleans coating liquid according to claim 1, which is characterized in that the regulator: urea, ammonium chloride,
Any two kinds in potassium dihydrogen phosphate, dipotassium hydrogen phosphate.
9. a kind of formaldehyde cleans coating liquid according to claim 1, which is characterized in that the auxiliary agent: diatomite, bentonite,
Any one in clay.
10. a kind of formaldehyde cleans coating liquid according to claim 1, which is characterized in that the biogum: peach gum, xanthan gum,
Any one in lac.
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Application publication date: 20181211 |