CN109796552A - A kind of children paint with pure-acrylic emulsion and preparation method thereof - Google Patents
A kind of children paint with pure-acrylic emulsion and preparation method thereof Download PDFInfo
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- CN109796552A CN109796552A CN201910048937.9A CN201910048937A CN109796552A CN 109796552 A CN109796552 A CN 109796552A CN 201910048937 A CN201910048937 A CN 201910048937A CN 109796552 A CN109796552 A CN 109796552A
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Abstract
The present invention discloses a kind of children and paints with pure-acrylic emulsion, by weight, be made of following raw material: 70-130 parts of distilled water, 0.5-5 parts of acrylic compounds hydrophilic monomer, removes 5-30 parts of aldehyde function monomer, 1-5 parts of emulsifier, 0.05-0.2 parts of cross-linking monomer, increases 0.1-1 parts of adhesive force function monomer, 0.2-1 parts of initiator, 0.1-0.5 parts of oxidant, 0.1-0.5 parts of reducing agent, 2-20 parts of pH adjusting agent 50-100 parts of alkyl acrylate.The scrub performance that pure-acrylic emulsion prepared by the present invention has had, excellent spot-resistant and removes aldehyde performance, does not need addition antifreezing agent, has good freeze-thaw stability, while guaranteeing Diamond Search.
Description
Technical field
The present invention relates to a kind of children to paint with pure-acrylic emulsion and preparation method thereof, belongs to pure-acrylic emulsion field.
Background technique
In China's decorations indoors at present, the usage amount of coating products increases year by year, in the decorations of child room
In material, the hidden danger of coating and paint is maximum, wherein the formaldehyde and benezene material that contain are the maximum killers of children's health, it is to lead
Cause the major reason of childhood lymphoblastic leukemia and cancer.
Such as Chinese patent " a kind of children furniture environmental protection coating material " (application No. is 201611115081.5), by following parts by weight
Raw material be made: epoxy resin 80-85, titanium dioxide 2-4, talcum powder 5-8, methyl methacrylate 6-8, aluminium powder 3-5, titanium
White powder 3-4, flyash 22-25, organism 4-6, calcium carbonate 2-4, defoaming agent 6-8, butyl acetate 10-14, polydimethylsiloxanes
Alkane 0.5-0.7, inorganic silica solution 2-2.5, polyvinyl alcohol 1-1.4, styrene 12-14, levelling agent 1.2-1.8, benzyl alcohol 10-
14, cyclohexanone 3-5, dispersing agent 3-6, appropriate dehydrated alcohol.Styrene, benzyl alcohol for wherein containing etc. endanger larger.
This has just caused people to the concern of the decorating and renovating material including coating and the worry of its security performance.Youngster
The interior wall coating in virgin room will not only be easy to mix colours, spot-resistant is also needed except aldehyde without heavy metal, low VOC, without APEO.Therefore,
How providing a kind of children and painting with lotion is those skilled in the art's technical problem urgently to be resolved.
Summary of the invention
In view of the above existing problems in the prior art, the present invention provides a kind of children to paint with pure-acrylic emulsion, the lotion zero
VOC has ultra-low-smell, has excellent spot-resistant, Neng Goufen after being made into emulsion paint without adding antifreezing agent and coalescing agent
Solve the pernicious gases such as the formaldehyde to dissociate in air and benzene.Invention also provides the preparation methods of above-mentioned pure-acrylic emulsion.
To achieve the goals above, a kind of children that the present invention uses paint with pure-acrylic emulsion, by weight, by following original
Material composition: 70-130 parts of distilled water, 0.5-5 parts of acrylic compounds hydrophilic monomer, removes aldehyde function list at 50-100 parts of alkyl acrylate
5-30 parts of body, 0.05-0.2 parts of cross-linking monomer, increases 0.1-1 parts of adhesive force function monomer, initiator 0.2-1 at 1-5 parts of emulsifier
Part, 0.1-0.5 parts of oxidant, 0.1-0.5 parts of reducing agent, 2-20 parts of pH adjusting agent.
The alkyl acrylate uses methyl methacrylate, Isooctyl acrylate monomer, ethyl acrylate, butyl acrylate
At least one of.
The acrylic compounds hydrophilic monomer uses acrylic acid, methacrylic acid, itaconic acid, hydroxy-ethyl acrylate, methyl-prop
At least one of olefin(e) acid hydroxyl ethyl ester.
The aldehyde function monomer that removes uses carbonic acid hydrazine.
The emulsifier is made of anion emulsifier and nonionic emulsifier, the anion emulsifier and nonionic Emulsion
The weight ratio of agent is (1-10): (1-10).
The anion emulsifier uses isomery tridecanol sodium sulfate salt, succinic acid sodium sulfonate, 2- acrylamido -2-
Methyl propane sulfonic acid sodium, 3- allyloxy -1- hydroxy-propane phosphate, sodium vinyl sulfonate, fatty alcohol ether vinyl sulfonic acid sodium salt
At least one of；The nonionic emulsifier uses octadecanoic acid ester of polyethylene glycol, aliphatic alcohol ethyl oxide, alkyl second
At least one of oxide.
The cross-linking monomer uses vinyltrimethoxysilane, vinyltriethoxysilane, γ-methacryloxypropyl
Base propyl trimethoxy silicane, trimethylol-propane trimethacrylate, allyl methacrylate, in divinylbenzene extremely
Few one kind.
The increase adhesive force function monomer uses methacrylate alkoxy phosphate, single functionality acrylic acid phosphorus
Acid esters, alkyl phosphoric acid esters particular monomers, COPS-3 and other alkyl or aryl phosphates, fatty alcohol or alkyl phenol polyoxy second
Alkene ether phosphate, alkylolamides phosphate, imidazolines phosphate, hydroxyethyl phosphate, polyphosphazene polymer phosphate and silicon
At least one of oxygen alkane phosphate.
The initiator uses at least one of potassium peroxydisulfate, ammonium persulfate, sodium peroxydisulfate；The oxidant uses uncle
At least one of butylhydroperoxide, hydrogen peroxide；The reducing agent uses at least one of sodium hydrogensulfite, vitamin C；
The pH adjusting agent use concentration for 10% NaOH solution.
In addition, painting the preparation method with pure-acrylic emulsion the present invention also provides a kind of children, comprising the following steps:
1) under normal temperature and pressure, 0.5-4 parts of emulsifiers, 10-40 parts of distilled water is added in emulsion tank, are sufficiently stirred molten
Solution, and sequentially add the alkyl acrylate of formula ratio, 0.2-2 parts of acrylic compounds hydrophilic monomers, whole cross-linking monomers, whole
Increase adhesive force function monomer and remove aldehyde function monomer and 0.1-0.5 part initiators, be sufficiently stirred 15-25 minutes, preparation
Pre-emulsion；
2) remaining emulsifier and 40-70 parts of distilled water are added to reaction kettle bottom, dissolution is sufficiently stirred, is warming up to 70-
90 DEG C, remaining acrylic compounds hydrophilic monomer is added, after mixing evenly, then the 0.05- for taking step 1) that pre-emulsion total amount is made
15% is added reaction kettle bottom, reacts 10-30 minutes, and seed emulsion is made；
3) after step 2) fully reacting, control reaction temperature is 80-90 DEG C, starts simultaneously at a dropping step 1) in be made surplus
3-4h is added dropwise in remaining pre-emulsion, while remaining initiator is added dropwise, after dripping off, 80-90 DEG C heat preservation 30-60 minutes；
4) after to step 3) heat preservation, it is cooled to 70-80 DEG C, while being added dropwise in 15-30 minutes and being dissolved by 5 parts of water
Oxidizing agent solution that 0.05-0.3 parts of oxidants obtain dissolves the reducing agent solution that 0.05-0.3 parts of reducing agents obtain by 5 parts of water,
Then it is cooled to 50-70 DEG C and dissolves remaining oxidant, 5 parts of water by 5 parts of water hereinafter, controlling be added dropwise in 30-60 minutes simultaneously
The solution that dissolving and reducing agent obtains then is cooled to 50 DEG C and adjusts pH value hereinafter, pH adjusting agent is added as 7.0-9.0, filters
Children, which paint, uses pure-acrylic emulsion.
Compared with prior art, the beneficial effects of the present invention are:
1) children of the invention paint with pure-acrylic emulsion, increase adhesive force function monomer used, can be good at improving cream
The adhesive force of shellac varnish, to play the role of good scrubbing resistance, and these function monomers for increasing adhesive force will not influence cream
The freeze-thaw stability of shellac varnish itself thus can solve and organosilicon be added to the negative effect of freeze thawing bring, to do
To good scrubbing resistance and good freeze-thaw stability；Scrubbing resistance number is according to national standard GBT 9266-2009 abrasion resistance measuring method
Measurement, can be more than 20000 times.
2) children of the invention paint with pure-acrylic emulsion, effectively will can be linked to third except aldehyde function monomer at room temperature
On olefin(e) acid esters macromolecular chain, and the functional group for absorbing formaldehyde is remained, while not influencing the basic performance of former lotion again.
3) acrylic compounds hydrophilic monomer is added in the present invention, after being grafted on polymer, due to the water-wet side of hydrophilic monomer
The surface of latex particle can be remained at, latex particle thus can be preferably protected, in frozen-thaw process, is preferably protected
Protect lotion.
4) children of the invention paint with pure-acrylic emulsion, anion emulsifier used and nonionic emulsifier collocation use, increasing
The stability of latex particle is added；Emulsifier used is also the emulsifier of big EO number, will form very thick hydrated sheath, to cream
The stability of micelle has good effect；The antifreezing agent (EG, PG) of small molecule is added without in coating, according to national standard
The test of GBT9268-2008 emulsion paint freeze-thaw resistance, the standard of national standard can be even more than by national standard, passes through 6 circulation latexes
Denaturalization phenomenon will not occur in paint.
5) children of the invention paint simple with the synthesis technology of pure-acrylic emulsion, and easy to operate, cost is relatively low, highly-safe.
Specific embodiment
In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention is carried out below further detailed
It describes in detail bright.However, it should be understood that the specific embodiments described herein are merely illustrative of the present invention, it is not limited to this hair
Bright range.
Unless otherwise defined, all technical terms and scientific terms used herein are led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical, and term as used herein in the specification of the present invention is intended merely to retouch
State the purpose of specific embodiment, it is not intended that in the limitation present invention.
A kind of children paint with pure-acrylic emulsion, which has ultralow gas without adding antifreezing agent and coalescing agent
Taste has excellent spot-resistant after being made into emulsion paint, can decompose the pernicious gases such as the formaldehyde to dissociate in air and benzene.The present invention
The preparation method of above-mentioned pure-acrylic emulsion is provided simultaneously.
To achieve the goals above, a kind of children that the present invention uses paint with pure-acrylic emulsion, by weight, by following original
Material composition: 70-130 parts of distilled water, 0.5-5 parts of acrylic compounds hydrophilic monomer, removes aldehyde function list at 50-100 parts of alkyl acrylate
5-30 parts of body, 0.05-0.2 parts of cross-linking monomer, increases 0.1-1 parts of adhesive force function monomer, initiator 0.2-1 at 1-5 parts of emulsifier
Part, 0.1-0.5 parts of oxidant, 0.1-0.5 parts of reducing agent, 2-20 parts of pH adjusting agent.Pure-acrylic emulsion of the invention, passes through anion
It arranges in pairs or groups and uses with nonionic emulsifier, while by increasing adhesive force function monomer, ensure that good scrub performance, then lead to
Later treatment process accomplishes ordor removing, has just taken into account the important performance of freeze thawing, scrubbing resistance, ordor removing three well.
The alkyl acrylate uses methyl methacrylate, Isooctyl acrylate monomer, ethyl acrylate, butyl acrylate
At least one of.
The acrylic compounds hydrophilic monomer uses acrylic acid, methacrylic acid, itaconic acid, hydroxy-ethyl acrylate, methyl-prop
At least one of olefin(e) acid hydroxyl ethyl ester.Such as acrylic acid hydrophilic monomer can be and be mixed by acrylic acid and methacrylic acid.
The aldehyde function monomer that removes uses carbonic acid hydrazine.
The emulsifier is made of anion emulsifier and nonionic emulsifier, the anion emulsifier and nonionic Emulsion
The weight ratio of agent is (1-10): (1-10).
The anion emulsifier uses isomery tridecanol sodium sulfate salt, succinic acid sodium sulfonate, 2- acrylamido -2-
Methyl propane sulfonic acid sodium, 3- allyloxy -1- hydroxy-propane phosphate, sodium vinyl sulfonate, fatty alcohol ether vinyl sulfonic acid sodium salt
At least one of；The nonionic emulsifier uses octadecanoic acid ester of polyethylene glycol, aliphatic alcohol ethyl oxide, alkyl second
At least one of oxide.
The cross-linking monomer uses vinyltrimethoxysilane, vinyltriethoxysilane, γ-methacryloxypropyl
Base propyl trimethoxy silicane, trimethylol-propane trimethacrylate, allyl methacrylate, in divinylbenzene extremely
Few one kind.For example, cross-linking monomer can be vinyltrimethoxysilane and vinyltriethoxysilane mixes.
The increase adhesive force function monomer uses methacrylate alkoxy phosphate, single functionality acrylic acid phosphorus
Acid esters, alkyl phosphoric acid esters particular monomers, COPS-3 and other alkyl or aryl phosphates, fatty alcohol or alkyl phenol polyoxy second
Alkene ether phosphate, alkylolamides phosphate, imidazolines phosphate, hydroxyethyl phosphate, polyphosphazene polymer phosphate and silicon
At least one of oxygen alkane phosphate.Such as increase adhesive force function monomer can be COPS-3 and hydroxyethyl phosphate mixing and
At.The addition for increasing adhesive force function monomer, can greatly improve its adhesive force, to improve its scrub performance, while less
Influence the freeze-thaw stability of emulsion paint.
The initiator uses at least one of potassium peroxydisulfate, ammonium persulfate, sodium peroxydisulfate；The oxidant uses uncle
At least one of butylhydroperoxide, hydrogen peroxide；The reducing agent uses at least one of sodium hydrogensulfite, vitamin C.
Redox reaction can occur at a lower temperature for the two, generate free radical, and remaining monomer reaction is complete, allow system
Residual single amount reduces.The pH adjusting agent use concentration for 10% NaOH solution.
In addition, painting the preparation method with pure-acrylic emulsion the present invention also provides a kind of children, comprising the following steps:
1) under normal temperature and pressure, 0.5-4 parts of emulsifiers, 10-40 parts of distilled water is added in emulsion tank, are sufficiently stirred molten
Solution, and sequentially add the alkyl acrylate of formula ratio, 0.2-2 parts of acrylic compounds hydrophilic monomers, whole cross-linking monomers, whole
Increase adhesive force function monomer and remove aldehyde function monomer and 0.1-0.5 part initiators, be sufficiently stirred 15-25 minutes, preparation
Pre-emulsion；
2) remaining emulsifier and 40-70 parts of distilled water are added to reaction kettle bottom, dissolution is sufficiently stirred, is warming up to 70-
90 DEG C, remaining acrylic compounds hydrophilic monomer is added, after mixing evenly, then the 0.05- for taking step 1) that pre-emulsion total amount is made
15% is added reaction kettle bottom, reacts 10-30 minutes, and seed emulsion is made；
3) after step 2) fully reacting, control reaction temperature is 80-90 DEG C, starts simultaneously at a dropping step 1) in be made surplus
3-4h is added dropwise in remaining pre-emulsion, while remaining initiator is added dropwise, after dripping off, 80-90 DEG C heat preservation 30-60 minutes；
4) after to step 3) heat preservation, it is cooled to 70-80 DEG C, while being added dropwise in 15-30 minutes and being dissolved by 5 parts of water
Oxidizing agent solution that 0.05-0.3 parts of oxidants obtain dissolves the reducing agent solution that 0.05-0.3 parts of reducing agents obtain by 5 parts of water,
Then it is cooled to 50-70 DEG C and dissolves remaining oxidant, 5 parts of water by 5 parts of water hereinafter, controlling be added dropwise in 30-60 minutes simultaneously
The solution that dissolving and reducing agent obtains then is cooled to 50 DEG C and adjusts pH value hereinafter, pH adjusting agent is added as 7.0-9.0, filters
Children, which paint, uses pure-acrylic emulsion.
Emulsion solid content prepared by the present invention is 40-60%, partial size 0.1-0.4um；
VOC according to national standard GB/T13985-2009 gas chromatographic detection is zero.
This national standard is superior in experimental period according to interior wall detection project as defined in national standard GB/T 9756-2009；Freeze thawing
By not adding emulsion paint 6 circulations of antifreezing agent, scrubbing resistance can also reach 20000 times.
This national standard is superior in experimental period according to interior wall detection project as defined in GB/T 9756-2009.
Embodiment 1
A kind of children paint to be prepared from the following raw materials by weight with pure-acrylic emulsion: 70 parts of distilled water, acrylic acid alkyl
50 parts of ester, 0.5 part of acrylic compounds hydrophilic monomer, except 5 parts of aldehyde function monomer, 1 part of emulsifier, 0.05 part of cross-linking monomer, increase it is attached
Put forth effort 0.1 part of function monomer, 0.2 part of initiator, 0.1 part of oxidant, 0.1 part of reducing agent, 2 parts of pH adjusting agent.
The alkyl acrylate uses methyl methacrylate and butyl acrylate.
The acrylic compounds hydrophilic monomer uses acrylic acid and methacrylic acid.
The emulsifier is made of anion emulsifier and nonionic emulsifier, the anion emulsifier and nonionic Emulsion
The weight ratio of agent is 1:1.The anion emulsifier uses isomery tridecanol sodium sulfate salt；The nonionic emulsifier is adopted
With vinyl polyoxyethylene alkyl ether.
The cross-linking monomer uses vinyltrimethoxysilane.
The increase adhesive force function monomer uses β-acryloxy propionic/propyloic acrylic ester.
The initiator is potassium peroxydisulfate；The oxidant is tert-butyl hydroperoxide；
The reducing agent is sodium hydrogensulfite；The NaOH solution that the pH adjusting agent is 10%.
A kind of children paint the preparation method with pure-acrylic emulsion, comprising the following steps:
1) under normal temperature and pressure, 0.5 part of emulsifier, 10 parts of distilled water are added in emulsion tank, are sufficiently stirred dissolution, and according to
The secondary alkyl acrylate that formula ratio is added, 0.2 part of acrylic compounds hydrophilic monomer, whole cross-linking monomers, whole increases are attached
Put forth effort function monomer and except aldehyde function monomer and 0.1 part of initiator, is sufficiently stirred 15 minutes, prepares pre-emulsion；
2) remaining emulsifier and 40 parts of distilled water are added to reaction kettle bottom, dissolution is sufficiently stirred, be warming up to 70 DEG C, add
Enter remaining acrylic compounds hydrophilic monomer, after mixing evenly, then takes step 1) to be made the 0.05% of pre-emulsion total amount and be added instead
Bottom is answered, is reacted 10 minutes, seed emulsion is made；
3) after step 2) fully reacting, control reaction temperature be 80 DEG C, start simultaneously at a dropping step 1) in be made residue
Pre-emulsion, while remaining initiator is added dropwise, 3h is added dropwise, after dripping off, keep the temperature 30 minutes at 80 DEG C；
4) after to step 3) heat preservation, 70 DEG C are cooled to, while being added dropwise in 15 minutes and dissolving 0.05 part of oxygen by 5 parts of water
Oxidizing agent solution that agent obtains dissolves the reducing agent solution that 0.05 part of reducing agent obtains by 5 parts of water, be then cooled to 50 DEG C with
Under, while the solution being added dropwise in 30 minutes by 5 parts of water dissolve remaining oxidant, 5 parts of water dissolution reducing agents obtain is controlled, it connects
Be cooled to 50 DEG C hereinafter, it is 7.0-9.0 that pH adjusting agent, which is added, to adjust pH value, filter children paint and use pure-acrylic emulsion.
It is tested according to purifying formaldehyde efficiency of the JCT 1074-2008 standard to pure-acrylic emulsion of the present invention, first of the present invention
Aldehyde purification efficiency is 95%；It is all larger than 20000 times according to national standard GB/T 9756-2009 interior wall detection project scrubbing resistance, freeze thawing can
Pass through 5 circulations；According to the standard of national standard GB/T 9756-2009, the spot-resistant of pure-acrylic emulsion of the present invention is up to 75 points or more；Root
VOC according to national standard GB/T13985-2009 gas chromatographic detection is zero.
Embodiment 2
A kind of children paint to be made of following raw material by weight with pure-acrylic emulsion: 100 parts of distilled water, acrylic acid alkyl
80 parts of ester, 3 parts of acrylic compounds hydrophilic monomer remove 15 parts of aldehyde function monomer, 3 parts of emulsifier, 0.1 part of cross-linking monomer, increase attachment
0.5 part of power function monomer, 0.5 part of initiator, 0.3 part of oxidant, 0.3 part of reducing agent, 10 parts of pH adjusting agent.
The alkyl acrylate uses methyl methacrylate.
The acrylic compounds hydrophilic monomer uses methacrylic acid.
The emulsifier is made of anion emulsifier and nonionic emulsifier, the anion emulsifier and nonionic Emulsion
The weight ratio of agent is 4:1.The anion emulsifier uses fatty alcohol-ether sodium sulfate salt；The nonionic emulsifier uses rouge
Fat alcohol b-oxide.
The cross-linking monomer uses vinyltriethoxysilane.
The increase adhesive force function monomer uses β-acryloxy propionic/propyloic acrylic ester.
The initiator is ammonium persulfate；The oxidant is hydrogen peroxide；
The reducing agent is vitamin C；The NaOH solution that the pH adjusting agent is 10%.
The children paint the preparation method with pure-acrylic emulsion, comprising the following steps:
1) under normal temperature and pressure, 2 parts of emulsifiers, 25 parts of distilled water is added in emulsion tank, dissolution is sufficiently stirred, and successively
Alkyl acrylate, 1 part of acrylic compounds hydrophilic monomer, whole cross-linking monomers, the whole increase adhesive force of formula ratio is added
Function monomer and remove aldehyde function monomer and 0.3 part of initiator, be sufficiently stirred 20 minutes, prepare pre-emulsion；
2) remaining emulsifier and 55 parts of distilled water are added to reaction kettle bottom, dissolution is sufficiently stirred, be warming up to 80 DEG C, add
Enter remaining acrylic compounds hydrophilic monomer, after mixing evenly, then takes step 1) to be made the 7% of pre-emulsion total amount and reaction kettle is added
Bottom is reacted 20 minutes, and seed emulsion is made；
3) after step 2) fully reacting, control reaction temperature be 85 DEG C, start simultaneously at a dropping step 1) in be made residue
Pre-emulsion, while remaining initiator is added dropwise, 3.5h is added dropwise, after dripping off, keep the temperature 45 minutes at 85 DEG C；
4) after to step 3) heat preservation, 75 DEG C are cooled to, while being added dropwise in 20 minutes and dissolving 0.15 part of oxygen by 5 parts of water
Oxidizing agent solution that agent obtains dissolves the reducing agent solution that 0.15 part of reducing agent obtains by 5 parts of water, be then cooled to 60 DEG C with
Under, while the solution being added dropwise in 45 minutes by 5 parts of water dissolve remaining oxidant, 5 parts of water dissolution reducing agents obtain is controlled, it connects
Be cooled to 50 DEG C hereinafter, it is 7.0-9.0 that pH adjusting agent, which is added, to adjust pH value, filter children paint and use pure-acrylic emulsion.
Pure-acrylic emulsion purifying formaldehyde efficiency of the invention is tested according to JCT 1074-2008 standard, first of the present invention
Aldehyde purification efficiency is 96%；According to national standard GB/T 9756-2009 interior wall detection project, scrubbing resistance is all larger than 20000 times, is frozen
Melting can be by 5 circulation；According to the standard of national standard GB/T 9756-2009, pure-acrylic emulsion spot-resistant of the invention up to 70 points with
On；VOC according to national standard GB/T13985-2009 gas chromatographic detection is zero.
Embodiment 3
A kind of children paint to be made of following raw material by weight with pure-acrylic emulsion: 130 parts of distilled water, acrylic acid alkyl
100 parts of ester, 5 parts of acrylic compounds hydrophilic monomer remove 30 parts of aldehyde function monomer, 5 parts of emulsifier, 0.2 part of cross-linking monomer, increase attachment
1 part of power function monomer, 1 part of initiator, 0.5 part of oxidant, 0.5 part of reducing agent, 20 parts of pH adjusting agent.
The alkyl acrylate uses methyl methacrylate and butyl acrylate, ratio 2:1
The acrylic compounds hydrophilic monomer uses acrylic acid.
The emulsifier is made of anion emulsifier and nonionic emulsifier, the anion emulsifier and nonionic Emulsion
The weight ratio of agent is 4:1.The anion emulsifier uses 2- acrylamide-2-methylpro panesulfonic acid sodium；The nonionic
Emulsifier uses vinyl polyoxyethylene alkyl ether.
The cross-linking monomer uses vinyltrimethoxysilane.
The increase adhesive force function monomer uses glycidyl methacrylate.
The initiator is potassium peroxydisulfate；The oxidant is tert-butyl hydroperoxide；
The reducing agent is sodium hydrogensulfite；The NaOH solution that the pH adjusting agent is 10%.
The children paint the preparation method with pure-acrylic emulsion, comprising the following steps:
1) under normal temperature and pressure, 4 parts of emulsifiers, 40 parts of distilled water is added in emulsion tank, dissolution is sufficiently stirred, and successively
Alkyl acrylate, 2 parts of acrylic compounds hydrophilic monomers, whole cross-linking monomers, the whole increase adhesive force of formula ratio is added
Function monomer and remove aldehyde function monomer and 0.5 part of initiator, be sufficiently stirred 25 minutes, prepare pre-emulsion；
2) remaining emulsifier and 70 parts of distilled water are added to reaction kettle bottom, dissolution is sufficiently stirred, be warming up to 90 DEG C, add
Enter remaining acrylic compounds hydrophilic monomer, after mixing evenly, then takes step 1) to be made the 15% of pre-emulsion total amount and reaction is added
Bottom is reacted 30 minutes, and seed emulsion is made；
3) after step 2) fully reacting, control reaction temperature be 90 DEG C, start simultaneously at a dropping step 1) in be made residue
Pre-emulsion, while remaining initiator is added dropwise, 4h is added dropwise, after dripping off, keep the temperature 60 minutes at 90 DEG C；
4) after to step 3) heat preservation, 80 DEG C are cooled to, while being added dropwise in 30 minutes and dissolving 0.3 part of oxygen by 5 parts of water
Oxidizing agent solution that agent obtains dissolves the reducing agent solution that 0.3 part of reducing agent obtains by 5 parts of water, be then cooled to 70 DEG C with
Under, while the solution being added dropwise in 60 minutes by 5 parts of water dissolve remaining oxidant, 5 parts of water dissolution reducing agents obtain is controlled, it connects
Be cooled to 50 DEG C hereinafter, it is 7.0-9.0 that pH adjusting agent, which is added, to adjust pH value, filter children paint and use pure-acrylic emulsion.
It is tested according to purifying formaldehyde efficiency of the JCT 1074-2008 standard to pure-acrylic emulsion of the present invention, first of the present invention
Aldehyde purification efficiency is 98%；It is all larger than 20000 times according to national standard GB/T 9756-2009 interior wall detection project scrubbing resistance, freeze thawing can
Pass through 5 circulations；According to the standard of national standard GB/T 9756-2009, the spot-resistant of pure-acrylic emulsion of the present invention is up to 75 points or more；Root
VOC according to national standard GB/T13985-2009 gas chromatographic detection is zero.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modification, equivalent replacement or improvement etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of children paint with pure-acrylic emulsion, which is characterized in that by weight, be made of following raw material: distilled water 70-130
Part, removes 5-30 parts of aldehyde function monomer, emulsifier 1-5 at 50-100 parts of alkyl acrylate, 0.5-5 parts of acrylic compounds hydrophilic monomer
Part, increases 0.1-1 parts of adhesive force function monomer, 0.2-1 parts of initiator, oxidant 0.1-0.5 at 0.05-0.2 parts of cross-linking monomer
Part, 0.1-0.5 parts of reducing agent, 2-20 parts of pH adjusting agent.
2. a kind of children according to claim 1 paint with pure-acrylic emulsion, which is characterized in that the alkyl acrylate uses
At least one of methyl methacrylate, Isooctyl acrylate monomer, ethyl acrylate, butyl acrylate.
3. a kind of children according to claim 1 paint with pure-acrylic emulsion, which is characterized in that the acrylic compounds hydrophilic monomer
Using at least one of acrylic acid, methacrylic acid, itaconic acid, hydroxy-ethyl acrylate, hydroxyethyl methacrylate.
4. a kind of children according to claim 1 paint with pure-acrylic emulsion, which is characterized in that described except aldehyde function monomer uses
Carbonic acid hydrazine.
5. a kind of children according to claim 1 paint with pure-acrylic emulsion, which is characterized in that the emulsifier is by anion cream
The weight ratio of agent and nonionic emulsifier composition, the anion emulsifier and nonionic emulsifier is (1-10): (1-10).
6. a kind of children according to claim 5 paint with pure-acrylic emulsion, which is characterized in that the anion emulsifier uses
Isomery tridecanol sodium sulfate salt, succinic acid sodium sulfonate, 2- acrylamide-2-methylpro panesulfonic acid sodium, 3- allyloxy -1- hydroxyl
At least one of base-propane phosphate, sodium vinyl sulfonate, fatty alcohol ether vinyl sulfonic acid sodium salt；
The nonionic emulsifier is using in octadecanoic acid ester of polyethylene glycol, aliphatic alcohol ethyl oxide, alkyl ethoxylates
At least one.
7. a kind of children according to claim 1 paint with pure-acrylic emulsion, which is characterized in that the cross-linking monomer uses ethylene
Base trimethoxy silane, vinyltriethoxysilane, γ-methacryloxypropyl trimethoxy silane, trihydroxy methyl
At least one of propane trimethyl acrylic ester, allyl methacrylate, divinylbenzene.
8. a kind of children according to claim 1 paint with pure-acrylic emulsion, which is characterized in that the increase adhesive force function list
Body using methacrylate alkoxy phosphate, single functionality acrylated phosphate, alkyl phosphoric acid esters particular monomers,
COPS-3 and other alkyl or aryl phosphates, fatty alcohol or alkyl phenol polyoxyethylene ether phosphate, alkylolamides phosphoric acid
At least one of ester, imidazolines phosphate, hydroxyethyl phosphate, polyphosphazene polymer phosphate and siloxanes phosphate.
9. a kind of children according to claim 1 paint with pure-acrylic emulsion, which is characterized in that the initiator uses persulfuric acid
At least one of potassium, ammonium persulfate, sodium peroxydisulfate；
The oxidant uses at least one of tert-butyl hydroperoxide, hydrogen peroxide；
The reducing agent uses at least one of sodium hydrogensulfite, vitamin C；
The pH adjusting agent use concentration for 10% NaOH solution.
10. a kind of any one of claim 1-9 children paint the preparation method with pure-acrylic emulsion, which is characterized in that including with
Lower step:
1) under normal temperature and pressure, 0.5-4 parts of emulsifiers, 10-40 parts of distilled water are added in emulsion tank, dissolution is sufficiently stirred, and
Sequentially add the alkyl acrylate, 0.2-2 parts of acrylic compounds hydrophilic monomers, whole cross-linking monomers, whole increasings of formula ratio
Add adhesive force function monomer and except aldehyde function monomer and 0.1-0.5 parts of initiators, is sufficiently stirred 15-25 minutes, prepares pre- cream
Change liquid；
2) remaining emulsifier and 40-70 parts of distilled water are added to reaction kettle bottom, dissolution are sufficiently stirred, is warming up to 70-90 DEG C,
Remaining acrylic compounds hydrophilic monomer is added, after mixing evenly, then the 0.05-15% for taking step 1) that pre-emulsion total amount is made adds
Enter reaction kettle bottom, react 10-30 minutes, seed emulsion is made；
3) after step 2) fully reacting, control reaction temperature be 80-90 DEG C, start simultaneously at a dropping step 1) in be made remaining
3-4h is added dropwise in pre-emulsion, while remaining initiator is added dropwise, after dripping off, 80-90 DEG C heat preservation 30-60 minutes；
4) after to step 3) heat preservation, it is cooled to 70-80 DEG C, while being added dropwise in 15-30 minutes and dissolving 0.05- by 5 parts of water
Oxidizing agent solution that 0.3 part of oxidant obtains dissolves the reducing agent solution that 0.05-0.3 parts of reducing agents obtain by 5 parts of water, then
It is cooled to 50-70 DEG C and dissolves remaining oxidant, 5 parts of water dissolutions by 5 parts of water hereinafter, controlling be added dropwise in 30-60 minutes simultaneously
The solution that reducing agent obtains then is cooled to 50 DEG C and adjusts pH value hereinafter, pH adjusting agent is added as 7.0-9.0, filters to obtain children
Paint uses pure-acrylic emulsion.
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Application publication date: 20190524 |