CN109554045A - Polyacrylate latex and preparation method thereof - Google Patents
Polyacrylate latex and preparation method thereof Download PDFInfo
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- CN109554045A CN109554045A CN201811260865.6A CN201811260865A CN109554045A CN 109554045 A CN109554045 A CN 109554045A CN 201811260865 A CN201811260865 A CN 201811260865A CN 109554045 A CN109554045 A CN 109554045A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Abstract
A kind of polyacrylate latex and preparation method thereof, polyacrylate latex includes each component of following mass parts: 90 parts~100 parts of the aqueous glue of polyacrylate, 1 part~1.5 parts of nano-graphene, 0.5 part~1 part of carbon nanotube, 1.8 parts~2.6 parts of carbon nano-fiber, 8 parts~11 parts of polyether polyol, 3 parts~5 parts of low-temperature expansion graphite, 0.7 part~1.2 parts of fire retardant.Above-mentioned polyacrylate latex uses based on the aqueous glue of polyacrylate; it is equipped with nano-graphene, carbon nanotube, the carbon nano-fiber of excellent radiation performance again; and fire-retardant and excellent expansion character polyether polyol, low-temperature expansion graphite and fire retardant; so that polyacrylate latex has good heat dissipation and flame retardant effect, good decoration and protective effect can be played to heat dissipation and the higher equipment of fire protection requirement.
Description
Technical field
The present invention relates to latex fields, more particularly to a kind of polyacrylate latex and preparation method thereof.
Background technique
Polyacrylate latex is that esters of acrylic acid or methyl acrylic ester and other vinyl ester monomers carry out cream
The product of liquid polymerization, is widely applied a kind of water soluble paint in modem architectural ornament.
In China, people are traditionally base-material synthetic resin emulsion, and using water as decentralized medium, pigment, filler is added (also
Claim extender pigment) and auxiliary agent be called latex through coating made of certain technical process, be also latex paint.Due to latex paint
It is nontoxic, cheap, and film performance is excellent, the shortcomings that overcoming oily molten type, thus by the joyous of more and more people
It meets.
However, existing polyacrylate latex, especially for requiring heat dissipation performance and flame retardant property is preferable high-end sets
Standby, the latex of outside coating is in addition to excellent decorative performance, it is also necessary to have excellent heat dissipation performance, can maintain equipment
It operates for a long time, in addition when hot environment especially encounters the dangerous situations such as fire, it is also necessary to have certain flame retardant property,
Equipment can be avoided not burnt easily.
Summary of the invention
The purpose of the present invention is overcoming shortcoming in the prior art, a kind of heat dissipation performance and excellent flame retardancy are provided
Polyacrylate latex and preparation method thereof.
The purpose of the present invention is achieved through the following technical solutions:
The polyacrylate latex of one embodiment, each component including following mass parts:
The polyacrylate latex of another embodiment, each component including following mass parts:
The polyacrylate latex of another embodiment, each component including following mass parts:
The fire retardant is antimony oxide, microcapsule red phosphorus, melamine, zinc borate in one of the embodiments,
At least one of with aluminium hydroxide.
The partial size of the nano-graphene is 25nm~35nm in one of the embodiments,.
The partial size of the carbon nanotube is 8nm~15nm in one of the embodiments,.
The diameter of the carbon nano-fiber is 10 μm~20 μm in one of the embodiments,.
The preparation method of the polyacrylate latex of one embodiment, comprising the following steps:
The aqueous glue of polyacrylate, nano-graphene, carbon nanotube, carbon nano-fiber, polyether polyol, low temperature are provided
Expanded graphite and fire retardant, wherein the aqueous glue of the polyacrylate, the nano-graphene, the carbon nanotube, described
Carbon nano-fiber, the polyether polyol, the low-temperature expansion graphite and the fire retardant mass ratio be (90~100):
(1~1.5): (0.5~1): (1.8~2.6): (8~11): (3~5): (0.7~1.2)；
By the nano-graphene, the carbon nanotube, the carbon nano-fiber, the polyether polyol, the low temperature
Expanded graphite and the fire retardant are put into reaction kettle, under the conditions of 60 DEG C~75 DEG C of temperature, carry out ultrasonic vibration dispersion
Operation, obtains mixture；
The mixture is subjected to cooling down operation, the aqueous glue of the polyacrylate is added to described after cooling mixed
It closes in object, after mixing, obtains just latex；
The just latex is filtered operation, obtains polyacrylate latex.
It is described in one of the embodiments, to carry out the mixture in cooling down operation, by the temperature of the mixture
It is cooled to 35 DEG C~40 DEG C.
Before the first latex is filtered operation in one of the embodiments, also by the pH value tune of the just latex
It saves to 7.5~9.0.
Above-mentioned polyacrylate latex and preparation method thereof, polyacrylate latex include each component of following mass parts:
90 parts~100 parts of the aqueous glue of polyacrylate, 1 part~1.5 parts of nano-graphene, 0.5 part of carbon nanotube~1 part, nano-sized carbon
1.8 parts~2.6 parts of fiber, 8 parts~11 parts of polyether polyol, 3 parts~5 parts of low-temperature expansion graphite, 0.7 part~1.2 parts of fire retardant.
Above-mentioned polyacrylate latex uses based on the aqueous glue of polyacrylate, then is equipped with the nano-graphite of excellent radiation performance
Alkene, carbon nanotube, carbon nano-fiber and fire-retardant and excellent expansion character polyether polyol, low-temperature expansion graphite and fire-retardant
Agent, so that polyacrylate latex has good heat dissipation and flame retardant effect, it can be to heat dissipation and the higher equipment of fire protection requirement
Play good decoration and protective effect.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the step flow chart of the polyacrylate latex preparation method of one embodiment of the invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure
Add thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not meant to be the only embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more
Any and all combinations of relevant listed item.
The polyacrylate latex of one embodiment, each component including following mass parts:
Above-mentioned polyacrylate latex uses based on the aqueous glue of polyacrylate, plays a part of film forming agent, then match
It is more with the nano-graphene of excellent radiation performance, carbon nanotube, carbon nano-fiber and fire-retardant and excellent expansion character polyethers
First alcohol, low-temperature expansion graphite and fire retardant, so that polyacrylate latex has good heat dissipation and flame retardant effect.
The polyacrylate latex of another embodiment, each component including following mass parts:
By adjusting the proportion of each component of polyacrylate latex, the polyacrylate latex being prepared is enabled to
Heat dissipation performance and flame retardant property it is more preferable.
The polyacrylate latex of another embodiment, each component including following mass parts:
By further adjusting the proportion of each component of polyacrylate latex, the polyacrylic acid being prepared is enabled to
The heat dissipation performance and flame retardant property of ester latex are more preferable.
The fire retardant is antimony oxide, microcapsule red phosphorus, melamine, zinc borate in one of the embodiments,
At least one of with aluminium hydroxide.
It is important to be appreciated that the selection of fire retardant types and dosage have the flame retardant property of polyacrylate latex
It influences, fire retardant is added in the polyacrylate latex and enables to the polyacrylate latex with good fire-retardant
Performance, for example, the fire retardant be antimony oxide, microcapsule red phosphorus, melamine, zinc borate and aluminium hydroxide at least
One kind, in this way, polyacrylate latex of the brushing on equipment surface layer can play equipment good when encountering high temperature or fire
Good flame retardant effect.For another example, the fire retardant is melamine, it will be understood that melamine is the tripolymer of cyanamide, trimerization
Cyanamide can release a large amount of non-flammable nitrogen, contact of the starvation with equipment, in addition, due to that can release when being thermally decomposed
Non-flammable gas is put, melamine can also play the role of foaming agent, so that polyacrylate latex is reaching softening point
Under conditions of foaming and intumescing form spongiform carburization zone, so as to further play barrier action to equipment, further mention
The high flame retardant property of polyacrylate latex.
It should be noted that low-temperature expansion graphite is added in polyacrylate latex, can further increase described poly-
The flame retardant property of Acrylic emulsion, it will be understood that low-temperature expansion graphite has good expansiveness, and high temperature resistant, anti-spoke
Penetrate, be insulated, lubricity and chemical stability it is excellent, be capable of forming tough and tensile layer of charcoal, meanwhile, can largely be inhaled in expansion process
Heat is received, the temperature of system is reduced, so that polyacrylate latex has good fire-retardant and heat dissipation effect, in addition,
When reaching same flame retardant effect, the dosage of low-temperature expansion graphite is much smaller than common expanded graphite, the high temperature when fire occurs
Under environment, the volume of low-temperature expansion graphite can be 150~300 times of instantaneous expansion, so as to the flame that suffocates, need to illustrate
It is that the initial expansion temperature of low-temperature expansion graphite is only 120 DEG C, and fire temperature is generally at 800 DEG C~1000 DEG C, in this way,
Fire early period of origination, the low-temperature expansion graphite can either rapid expanding so that polyacrylate latex plays equipment
Fire-retardant and protection effect.
It should be noted that polyether polyol (abbreviation polyethers) is by initiator (compound containing active hydrogen group) and ring
Oxidative ethane (EO), propylene oxide (PO), epoxy butane (BO) etc. are in the presence of a catalyst through a kind of chemistry made from sudden reaction
Product are usually used in manufacturing polyurethane foam plastics, adhesive and elastomer etc..Polyether polyol toxicity is low, wetability is good, also common
In dispersing agent, enables to each component in polyacrylate latex system to mix more uniform, polypropylene can be greatly improved
The overall stability of acid esters latex.
In order to improve the heat dissipation performance of polyacrylate latex, nano-graphite also is added in the polyacrylate latex
Alkene has excellent heating conduction so that the thermal coefficient of polyacrylate latex is greatly improved.One wherein
In embodiment, the partial size of the nano-graphene is 25nm~35nm.It so, it is possible to further increase the polyacrylate cream
The heat dissipation performance of glue.
In order to further increase the heat dissipation performance of polyacrylate latex, also joined in the polyacrylate latex
Carbon nanotube, the partial size of the carbon nanotube is 8nm~15nm in one of the embodiments, so, it is possible to further increase
The heat dissipation performance of the polyacrylate latex.
In order to further improve the heat dissipation performance of polyacrylate latex, also it is added in the polyacrylate latex
Carbon nano-fiber, the diameter of the carbon nano-fiber is 10 μm~20 μm in one of the embodiments, so, it is possible into
One step improves the heat dissipation performance of the polyacrylate latex.
Referring to Fig. 1, the preparation method of the polyacrylate latex of an embodiment, comprising the following steps:
S110, the aqueous glue of polyacrylate, nano-graphene, carbon nanotube, carbon nano-fiber, polyether polyols are provided
Alcohol, low-temperature expansion graphite and fire retardant, wherein the aqueous glue of the polyacrylate, the nano-graphene, the carbon nanometer
Pipe, the carbon nano-fiber, the polyether polyol, the low-temperature expansion graphite and the fire retardant mass ratio be (90
~100): (1~1.5): (0.5~1): (1.8~2.6): (8~11): (3~5): (0.7~1.2).
By providing the aqueous glue of polyacrylate as primary raw material, as film forming agent, then it is equipped with excellent radiation performance
Nano-graphene, carbon nanotube, carbon nano-fiber and fire-retardant and excellent expansion character polyether polyol, low-temperature expansion
Graphite and fire retardant, so that polyacrylate latex has good heat dissipation and flame retardant effect, it can be to heat dissipation and fire protection requirement
Higher equipment plays good decoration and protective effect, in order to improve heat dissipation and the flame retardant effect of polyacrylate latex,
In, the aqueous glue of the polyacrylate, the nano-graphene, the carbon nanotube, the carbon nano-fiber, the polyethers
The mass ratio of polyalcohol, the low-temperature expansion graphite and the fire retardant is (90~100): (1~1.5): (0.5~1):
(1.8~2.6): (8~11): (3~5): (0.7~1.2) so, it is possible to further increase the polyacrylate latex
Quality.
S120, by the nano-graphene, carbon nanotube, the carbon nano-fiber, the polyether polyol, described
Low-temperature expansion graphite and the fire retardant are put into reaction kettle, under the conditions of 60 DEG C~75 DEG C of temperature, carry out ultrasonic vibration
Scatter operation obtains mixture.
By by the nano-graphene, carbon nanotube, the carbon nano-fiber, the polyether polyol, described
Low-temperature expansion graphite and the fire retardant are put into reaction kettle, under the conditions of 60 DEG C~75 DEG C of temperature, carry out ultrasonic vibration
Scatter operation enables to above-mentioned material to be sufficiently mixed uniformly, obtains mixture, obtains the better polypropylene of performance conducive to subsequent
Acid esters latex.
S130, the mixture is subjected to cooling down operation, the aqueous glue of the polyacrylate is added to the cooling
In mixture afterwards, after mixing, just latex is obtained.
The problems such as being appreciated that the property of lotion is more unstable under high temperature environment, being easy to happen " demulsification ", in this way, logical
It crosses after the mixture is carried out cooling down operation, then the aqueous glue of the polyacrylate is added to the mixing after cooling
In object, after mixing, colostrum glue can be obtained.For example, cooled down the mixture by the way of recirculated cooling water,
In one of the embodiments, for example, the temperature of the mixture is cooled to 35 DEG C~40 DEG C, so, it is possible to guarantee poly- third
The normal operation of olefin(e) acid ester latex preparation process.
S140, the just latex is filtered operation, obtains polyacrylate latex.
By the way that the just latex is filtered operation, polyacrylate latex can be obtained.In order to improve polyacrylic acid
The quality of ester latex, before the first latex is filtered operation in one of the embodiments, also by the pH of the just latex
Value is adjusted to 7.5~9.0.It is appreciated that the pH value of latex has a significant impact to the stability of latex, during fresh latex is in
Property, slightly weak base sexual orientation, pH value are 7~7.2, by a few hours to more than ten hour, due to the shadow of bacterium and enzyme in latex
It rings, pH value can decrease and become acid, so that cause to solidify, in order to improve the stability of polyacrylate latex, for example,
The pH value of the just latex is adjusted to 7.5~9.0 using oxygen sodium hydroxide solution or oxygen potassium oxide solution, so, it is possible significantly
Improve the stability and storage stability of polyacrylate latex.
In order to improve the quality of polyacrylate latex, for example, the filter operation specifically comprises the following steps: S141:
The just latex is at the uniform velocity injected into the hopper of vacuum filter, the vacuum filter has vacuum pump, in the storage
One pressurizing device is installed, wherein the pressurizing device is the device that air compressor machine is similarly used for air-blowing pressurization on liquid bath；
S142: starting vacuum pump is filtered under diminished pressure, closes vacuum pump after filtering 20~22min；Start the pressurization dress on hopper
It sets, carries out pressure filtration, filtration time is 5~7min；S143: closing pressurizing device, starts vacuum pump, is filtered under diminished pressure,
Vacuum pump is closed after 10~12min of filtering；Start hopper on pressurizing device, carry out pressure filtration, filtration time be 10~
12min；S144: closing pressurizing device, starts vacuum pump, is filtered under diminished pressure, and closes vacuum pump after filtering 5~7min；Starting
Pressurizing device on hopper, carries out pressure filtration, and filtration time is 20~22min；S145: pressurizing device is closed, was completed
Filter operation, obtains polyacrylate latex, in this way, using above-mentioned intermittent pressurization and being filtered under diminished pressure operating method to the colostrum
Glue is filtered operation, when starting to be filtered operation, be filtered under diminished pressure carry out the time it is longer, and pressure filtration carry out the time compared with
It is short, this is because, just the viscosity of latex is relatively low described in filtering initial stage, impurity or big partial size polyacrylate on strainer
Latex particle is less, and filter efficiency is higher, therefore it is more relatively long to be filtered under diminished pressure the progress time；But it is attached with the continuous progress of filtering
Big partial size emulsion particle on strainer and impurity it is more and more, blockage problem occur it is more and more frequent, at this moment using identical
Time be filtered under diminished pressure and pressure filtration；The filter operation later period has been arrived, then the time has been filtered under diminished pressure using shorter, and has been used
Longer time carries out pressure filtration, in this way, using intermittent pressurization and depressurizing in conjunction with the self character of the just latex
Operating method is filtered, filter efficiency can be greatly improved, and shorten filtration time, and then improves that quality is prepared is more excellent
The efficiency of polyacrylate latex.
In order to improve the quality of polyacrylate latex, the aqueous glue of polyacrylate further includes following mass parts
Each component:
Wherein, the polyacrylate mixture includes each component of following mass parts: 4 parts~13 parts acrylic acid fourths
Ester, 3 parts~11 parts cyclohexyl acrylates, 3 parts~10 parts lauryl methacrylates, 2 parts~9 parts methacrylic acid methoxyl group second
Ester, 2 parts~8 parts hydroxyethyl methacrylates, 1 part~6 parts acrylic acid, 1 part~7 parts maleic anhydrides and 2 parts~7 parts dimethyl propylenes
Acrylamide.
It is appreciated that polyacrylate is to form good luster using esters of acrylic acid as the homopolymer of monomer or copolymer
And water-fast film, bonding securely, are not easy to peel off, flexible and flexible at room temperature, good weatherability.And with acrylic acid or acrylic acid
Esters be main Material synthesis acrylic emulsion have excellent photostability and weatherability, it is good it is water-fast, alkaline-resisting,
Chemical resistance and adhesive property, in this way, being primarily intended for using polyacrylate mixture as polyacrylate latex
Raw material can be improved the adhesion of the polyacrylate latex, and adhesive force is stronger after being brushed in equipment, while have more preferable
Weatherability.
It is appreciated that monomer is the basis to form polymer, monomer decides the physics, chemistry and machinery of its product emulsion
Performance.Hard monomer makes latex film have certain hardness, and soft monomer makes latex film have certain elasticity, and functional monomer assigns
The some response characteristics of latex film, such as hydrophily, water resistance, alkali resistance, weatherability, bridging property.Using acrylate as principal monomer
The lotion being prepared, cementability and adhesion are good, at the same it is nontoxic as the prepared latex of main film forming substance using it, without dirt
Dye, there is the features such as good weatherability, colour retention, water resistance, alkali resistance, can be applied to the industries such as emulsion for architecture well
In.
In order to improve the performance of polyacrylate latex, the polyacrylate mixing in one of the embodiments,
Object includes each component of following mass parts: 4 parts~13 parts butyl acrylates, 3 parts~11 parts cyclohexyl acrylates, 3 parts~10 parts
Lauryl methacrylate, 2 parts~9 parts methoxyethyl methacrylates, 2 parts~8 parts hydroxyethyl methacrylates, 1 part~6
Part acrylic acid, 1 part~7 parts maleic anhydrides and 2 parts~7 parts dimethylacrylamide.It is appreciated that butyl acrylate and acrylic acid
Cyclohexyl belongs to soft monomer, can be with various hard monomers and functional monomer such as lauryl methacrylate, acrylic acid, maleic acid
Acid anhydride and dimethylacrylamide are copolymerized, are crosslinked and are grafted, and the polyacrylic mixture of emulsion-type is capable of.In order to further
The performance for improving polyacrylate latex, for example, the polyacrylate mixture includes each component of following mass parts: 6
Part~10 parts of butyl acrylates, 5 parts~8 parts cyclohexyl acrylates, 4 parts~7 parts lauryl methacrylates, 4 parts~8 parts methyl
Methoxyethyl acrylate, 3 parts~6 parts hydroxyethyl methacrylates, 2 parts~5 parts acrylic acid, 3 parts~6 parts maleic anhydrides and 3
Part~5 parts of dimethylacrylamide, for another example, the polyacrylate mixture includes each component of following mass parts: 8 part third
Olefin(e) acid butyl ester, 7 parts of cyclohexyl acrylates, 5 parts of lauryl methacrylates, 4 parts of methoxyethyl methacrylates, 3 parts of methyl
Hydroxy-ethyl acrylate, 3 parts of acrylic acid, 4 parts of maleic anhydrides and 4 parts of dimethylacrylamide, so, it is possible so that the polypropylene
The adhesion of esters of gallic acid mixture is more preferable, it is easier to brush, and weatherability is more preferable.
It should be noted that the aqueous glue of polyacrylate provided by the invention uses pure water as solvent, eliminates and apply
Working hour fire risk, reduces to atmosphere pollution, and be easier to brush, it is dry rapidly, film is water-fast, scrub resistance is good, ring
Guaranteed cost and security performance are more preferable.
It is appreciated that initiator be for causing alkenes, the free radical polymerization of double vinyl monomers and copolymerization, can also
A kind of compound that crosslinking curing and high molecular crosslink for unsaturated polyester (UP) react, initiation must be used in prepare glue
Agent, can it can also directly affect polymerization process and go on smoothly, and also will affect polymerization rate, also will affect product
Storage period.It is described in one of the embodiments, in order to which the aqueous glue of the more stable polyacrylate of performance is prepared
Initiator is soluble persulfate.For example, the solubility persulfate is in potassium peroxydisulfate, sodium peroxydisulfate and ammonium persulfate
At least one, during so, it is possible so that preparing the aqueous glue of polyacrylate, carry out polymerization reaction when can be more
It goes on smoothly, meanwhile, it also can be improved the rate of polymerization reaction, so that the quality of the aqueous glue of the polyacrylate being prepared
More preferably.Certainly, the initiator can also be capable of the substance of initiated polymerization for other, for example, the initiator can be with
For azodiisobutyronitrile, azobisisoheptonitrile, azobisisovaleronitrile, azo diisopropyl imidazoline hydrochloride and azo-bis-iso-dimethyl
At least one of, it so, it is possible so that the performance of the aqueous glue of polyacrylate is more stable, quality is more preferable.
In order to which the feature of environmental protection and the aqueous glue of the better polyacrylate of safety is prepared, one embodiment wherein
In, the emulsifier includes each component of following mass parts: 2 parts~6 parts starch polyglycoside surfactants, 1 part~4 parts fatty alcohols
Polyoxyethylene ether and 1 part~5 parts coconutalkyl oxalamides.
It should be noted that the selection of emulsifier type and the determination of dosage are determine emulsion polymerization systems stability two
A key factor, the dispersible solubilized monomer of emulsifier before polymerization reaction, forms more stable monomer emulsion, cream in polymerization process
Agent provides place-monomer solubilization micelle of initiated polymerization, and emulsifier is adsorbed in latex particle surface after polymerization reaction, surely
Determine latex particle, is allowed to not generate cohesion.For example, use nonionic surface active agent for the emulsion polymerization of emulsifier,
Temperature will significantly affect the stability of polymerization reaction, because when the temperature increases, the Brownian movement of hydrone is accelerated, aquation
Reduce, hydration protective layer goes to pot, and polymer emulsion particle is just gathered into bigger particle and settles, for example, using anion
Type surfactant is as emulsifier, the ionized emulsifier anion of polymer particle adsorption and negatively charged, this band
The latex particle of electricity is stable by the repulsion of like charges, thus has preferable mechanical stability, in this way, using compounding
For example existing nonionic surface active agent of emulsifier to have the emulsifier of anionic surfactant that can obtain again more stable
Polymerization process, and conversion ratio is also higher.And with the enhancing of people's environmental consciousness, it is good using environmental-protecting performance and compatibility
Emulsifier be a trend, obtained in this way, the present invention is used using natural reproducible resource fatty alcohol and starch as raw material preparation
Environment-friendly type non-ionic starch polyglycoside surfactants and fatty alcohol polyoxyethylene ether and coconutalkyl oxalamide into
The emulsifier that row compounding obtains, under the action of synergy, emulsifiability is greatly improved, meanwhile, compare conventionally employed alkyl
The emulsification system of phenol polyethenoxy ether or alkylsulfonate substantially increases the environmental-protecting performance and peace of the aqueous glue of polyacrylate
Full performance.In order to further improve the environmental-protecting performance and security performance of the aqueous glue of polyacrylate, for another example, the emulsifier
Each component including following mass parts: 2 parts~6 parts starch polyglycoside surfactants, 1 part~4 parts fatty alcohol polyoxyethylene ether and 1
Part~5 parts of coconutalkyl oxalamides, in this way, the emulsifier has stronger surface-active, emulsifying capacity is greatly improved,
The feature of environmental protection and safety of the aqueous glue of polyacrylate are also assured simultaneously.
In order to improve the covering power and tinting strength, tinting power and environmental-protecting performance of polyacrylate latex, one embodiment wherein
In, the pigment is titanium white, iron oxide red, carbon black, lampblack, black iron oxide, red iron oxide, chrome yellow, phthalocyanine green, phenol red, quinoline a word used for translation
Pyridine ketone is red, at least one of alum, magnesium hydroxide, magnesia and carclazyte.It is appreciated that a major function of latex is to assign
Coated article appearance is given with colour, while the appearance of coated object can be covered to get up to prevent it from appearing, in this way, the present invention mentions
The pigment that the polyacrylate latex of confession uses for titanium white, iron oxide red, carbon black, lampblack, black iron oxide, red iron oxide, chrome yellow,
Phthalocyanine green, phenol red, quinacridone is red, at least one of alum, magnesium hydroxide, magnesia and carclazyte, can not only improve poly-
The covering power and tinting strength, tinting power of Acrylic emulsion, while will not also make the soluble heavy metal in polyacrylate latex super
Mark, improves environmental-protecting performance and security performance.
In order to improve the quality of polyacrylate latex, in one of the embodiments, the filler be powdered whiting,
At least one of barium carbonate, blanc fixe, talcum powder, mica powder, wollastonite, calcined kaolin and diatomite.It can manage
Solution, in polyacrylate latex, on the one hand filler plays the role of constitution filling, on the other hand also functions to certain covering and makees
With in this way, polyacrylate latex provided by the invention uses powdered whiting, barium carbonate, blanc fixe, talcum powder, cloud
At least one of female powder, wollastonite, calcined kaolin and diatomite can greatly improve the quality of polyacrylate latex,
For example, with porous structure calcined kaolin and diatomite can the harmful substances such as PARA FORMALDEHYDE PRILLS(91,95) and volatile organic compounds into
Row absorption and explanation, substantially increase the environmental-protecting performance and security performance of polyacrylate latex.
In order to further increase the adhesion and weatherability of polyacrylate latex, while improving its environmental-protecting performance and safety
Performance, the auxiliary agent is dispersing agent, wetting agent, levelling agent, defoaming agent, thickener, nano inorganic in one of the embodiments,
Anion removes Formaldehyde as Additives, nanometer polymer tiny balloon and at least one of the preservatives.
It is appreciated that auxiliary agent is indispensable component in latex, it can improve production technology, and storage is kept to stablize,
Improve execution conditions, improve product quality, assigns specific function.For example, the auxiliary agent is dispersing agent and wetting agent, in this way, energy
It is enough so that pigment and filler etc. in polyacrylate latex mixed with lotion it is more uniform so that polyacrylate is newborn
The stability of glue is higher, for example, the dispersing agent is sodium laurate, stearic acid sodium, sodium pyrophosphate and methyl hydroxyethylcellulose
At least one of, so, it is possible so that polyacrylate latex system dispersion it is more uniform, stability is more preferable；For example, institute
State auxiliary agent be levelling agent, so, it is possible so that polyacrylate latex formed during drying and forming-film one it is more smooth,
Smooth and uniform film, substantially improves the permeability of polyacrylate latex, effectively reduces polyacrylate latex and is brushing
When generate spot and a possibility that spot, increase spreadability, for example, the levelling agent is polyacrylic acid or hydroxymethyl cellulose,
It so, it is possible so that polyacrylate latex forms more smooth, smooth and uniform film；For example, the auxiliary agent is defoaming
Agent so, it is possible to eliminate the foam that material is formed in process of production, greatly improve the quality of polyacrylate latex, for example,
The defoaming agent is dimethyl silicone polymer, and the antifoaming speed of dimethyl silicone polymer is fast, and dispersion performance is excellent, especially dilute
The floating oil that is demulsified is not easy after releasing, the foam inhibition time is long, and high-efficient, dosage is low, and nontoxic, corrosion-free, no adverse side effect, due to
Easily disperse in water, can mix well with liquid product, be not easy the floating oil that is demulsified, is that the quality-high and inexpensive general normal temperature type of one kind disappears
Infusion；For example, the defoaming agent is polyoxypropylene ethylene oxide glycerin ether, the foam inhibition time of polyoxypropylene ethylene oxide glycerin ether
Length, effect is good, antifoaming speed is fast, thermal stability is good；For example, the defoaming agent is higher alcohols, higher alcohols are strong hydrophobic slightly water-wets
Linear molecule, be effectively defoaming agent in aqueous systems；For another example, the defoaming agent is dimethyl silicone polymer, polyoxy third
Mixture foam killer obtained by alkene ethylene oxide glycerin ether and higher alcohols are prepared, wherein the dimethyl silicone polymer, the polyoxy
The mass ratio of propylene ethylene oxide glycerin ether and the higher alcohols is (0.5~0.8): (0.2~0.5): (0.3~0.7), such as
This, can eliminate the foam that material is formed in process of production, greatly improve the quality of polyacrylate latex；For example, described
Auxiliary agent is thickener, so, it is possible increase latex viscosity, reduce the substance of mobility, improve polyacrylate latex at
Film property, for example, the thickener is hydroxyethyl cellulose, pentaerythritol stearate, Sodium Polyacrylate and trihydroxy stearic acid
At least one of glyceride so, it is possible the viscosity for greatly improving polyacrylate latex and stability, more conducively at
Film.
It should be noted that the auxiliary agent can also be hollow except Formaldehyde as Additives, nanometer polymer for nano inorganic anion
Microballoon and at least one of the preservatives.For example, the nano inorganic anion is the mixing of nano rare earth element except Formaldehyde as Additives
Object so, it is possible using the electronic activation shifted during rare earth element variation of valence and participate in photochemical reaction, reduce hydrone
It forms and spends, hydroxyl radical free radical is promoted to generate, and since hydroxyl radical free radical has very strong oxidability, it can decompose organic matter, from
And indoor formaldehyde and volatile organic compounds isoreactivity gas can be decomposed, substantially increase polyacrylate cream
The environmental-protecting performance and security performance of glue；In order to further increase the environmental-protecting performance and security performance of polyacrylate latex, at it
In middle one embodiment, the nanometer polymer tiny balloon is polymethylacrylic acid-divinylbenzene tiny balloon, wherein institute
Stating polymethylacrylic acid-divinylbenzene tiny balloon partial size is 40nm~100nm, in this way, the polymethylacrylic acid-diethyl
The nanoscale of alkene benzene tiny balloon is tiny and regular and uniform hole can effectively adsorb formaldehyde in room and volatility has
Machine compound isopolarity harmful substance；For another example, the auxiliary agent is preservative, it will be understood that contains a large amount of water in water based emulsion
Point and nutriment if storage is improper be easy pollution by bacterium, thus cause the viscosity of water based emulsion to decline, corruption, gas making,
Demulsification and other harmful physical and chemical changes, in this way, polyacrylate latex provided by the invention is also added into anti-corrosion
Agent so, it is possible the storage stability for greatly improving polyacrylate latex for example, the preservative is potassium sorbate.
In another embodiment, a kind of preparation method of the aqueous glue of polyacrylate, comprising the following steps:
S111, polyacrylate mixture, pure water, initiator, emulsifier, pigment, filler and auxiliary agent are provided, wherein
The polyacrylate mixture, the pure water, the initiator, the emulsifier, the pigment, the filler and described
The mass ratio of auxiliary agent is (20~40): (15~35): (4~9): (3~8): (8~20): (3~35): (3~9).
It is used as by using polyacrylate mixture, pure water, pigment and filler and mainly prepares raw material, then be equipped with initiation
Polyacrylate latex can be prepared in agent, emulsifier and auxiliary agent, wherein the polyacrylate mixture, described pure
Water, the initiator, the emulsifier, the pigment, the filler and the auxiliary agent mass ratio be (20~40): (15
~35): (4~9): (3~8): (8~20): (3~35): (3~9), can so be prepared be easy to brush, adhesion and
Weatherability is good, and especially content of volatile organic compound is lower, and environmental-protecting performance and security performance are better, is more suitable for wall
The polyacrylate latex of interior brushing.
In order to improve the performance of polyacrylate latex, the polyacrylate mixing in one of the embodiments,
Object includes each component of following mass parts: 4 parts~13 parts butyl acrylates, 3 parts~11 parts cyclohexyl acrylates, 3 parts~10 parts
Lauryl methacrylate, 2 parts~9 parts methoxyethyl methacrylates, 2 parts~8 parts hydroxyethyl methacrylates, 1 part~6
Part acrylic acid, 1 part~7 parts maleic anhydrides and 2 parts~7 parts dimethylacrylamide.It is appreciated that butyl acrylate and acrylic acid
Cyclohexyl belongs to soft monomer, can be with various hard monomers and functional monomer such as lauryl methacrylate, acrylic acid, maleic acid
Acid anhydride and dimethylacrylamide are copolymerized, are crosslinked and are grafted, and the polyacrylic mixture of emulsion-type is capable of.In order to further
The performance for improving polyacrylate latex, for example, the polyacrylate mixture includes each component of following mass parts: 6
Part~10 parts of butyl acrylates, 5 parts~8 parts cyclohexyl acrylates, 4 parts~7 parts lauryl methacrylates, 4 parts~8 parts methyl
Methoxyethyl acrylate, 3 parts~6 parts hydroxyethyl methacrylates, 2 parts~5 parts acrylic acid, 3 parts~6 parts maleic anhydrides and 3
Part~5 parts of dimethylacrylamide, for another example, the polyacrylate mixture includes each component of following mass parts: 8 part third
Olefin(e) acid butyl ester, 7 parts of cyclohexyl acrylates, 5 parts of lauryl methacrylates, 4 parts of methoxyethyl methacrylates, 3 parts of methyl
Hydroxy-ethyl acrylate, 3 parts of acrylic acid, 4 parts of maleic anhydrides and 4 parts of dimethylacrylamide, so, it is possible so that the polypropylene
The adhesion of esters of gallic acid mixture is more preferable, it is easier to brush, and weatherability is more preferable.
S112, the polyacrylate mixture, the pure water, the initiator and the emulsifier are put into it is poly-
It closes in reaction kettle, carries out pre-emulsification operation, obtain pre-emulsion.
It is poly- by putting into the polyacrylate mixture, the pure water, the initiator and the emulsifier
It closes in reaction kettle, carries out pre-emulsification operation, pre-emulsion can be obtained.
It is appreciated that during preparing water based emulsion, other than raw material selection is most important, synthesis technology also right and wrong
Normal the key link, pre-emulsification technology, which refers to, first mixes emulsifier and monomer before emulsion polymerization, and monomer is dispersed by cream
The drop of agent molecule cladding, formed be conducive to be added dropwise, in stable condition emulsion, be most commonly used one in lotion synthesis
Kind process route, the technique can be such that monomer component and emulsifier equably participates in polymerization reaction, guarantee latex particle shape
At synchronous with depth of cure, guarantee the stability and controllability of polymerization reaction, therefore, it is mixed to prepare suitable pre-emulsification monomer
Close the key link at the beginning of liquid is synthesis.The higher pre-emulsion of quality in order to obtain, for example, the polyacrylate is mixed
After object, the pure water, the initiator and the emulsifier are put into polymerization reaction kettle, using 400 revs/min of stirring speed
Degree, persistently stirs 30min, mixes each material in pre-emulsification reaction system more uniform, then at 30 DEG C~50 DEG C
Under the conditions of temperature, the pre-emulsification reaction of 20min is carried out, so, it is possible to form the better pre-emulsion of stability, be conducive to subsequent preparation
Obtain the more excellent polyacrylate latex of quality.
S113, it the pigment, the filler and the auxiliary agent is added in the pre-emulsion carries out polymerization reaction, obtain
Copolymer.
Polymerization reaction is carried out by the way that the pigment, the filler and the auxiliary agent to be added in the pre-emulsion, it can
Obtain copolymer.The better copolymer of quality in order to obtain, for example, the temperature of the polymerization reaction in one of the embodiments,
Degree is 55 DEG C~85 DEG C.It is appreciated that the temperature height of polymerization reaction is to emulsion system during emulsion polymerization
Stability and polymerization efficiency have large effect, by controlling the temperature of polymerization reaction at 55 DEG C~85 DEG C, enable to gather
The efficiency for closing reaction greatly improves, and can obtain the better copolymer of quality.
In order to be prepared be easy to brush, adhesion and weatherability it is good, and environmental-protecting performance and security performance are preferably gathered
Acrylic emulsion, for example, the mode of the polymerization reaction is radiation-induced emulsion polymerization mode, mini-emulsion polymerization mode, cream in situ
One of liquid polymerization methods and seeded emulsion polymerization mode so, it is possible to obtain the better copolymer of quality, and then after being conducive to
It is continuous be prepared be easy to brush, adhesion and weatherability it is good, and environmental-protecting performance and the better polyacrylate cream of security performance
Glue.
S114, after cooling down the copolymer, it is filtered operation, obtains the aqueous glue of polyacrylate.
After cooling down the copolymer, then it is filtered operation, the aqueous glue of polyacrylate can be obtained.It can be with
Understand, in the polymerization reaction, a large amount of waste heat can be generated, needs to be transferred into natural environment with heat transfer medium in time, with
The normal operation for guaranteeing the aqueous glue production process of polyacrylate, for example, by the copolymerization by the way of recirculated cooling water
Object is cooled down, and so, it is possible the normal operation for guaranteeing production system, and can follow bad utilize and energy saving.
By being filtered after the copolymer cooling operation, some unreacted originals in reaction system can be removed
Material or contamination precipitation, can obtain the aqueous glue of the better polyacrylate of quality.
It is below specific embodiment part.
Embodiment 1
The aqueous glue of 90g polyacrylate, 1g nano-graphene, 0.5g carbon nanotube, 1.8g carbon nano-fiber, 8g are provided
Polyether polyol, 3g low-temperature expansion graphite and 0.7g microcapsule red phosphorus；
By 1g nano-graphene, 0.5g carbon nanotube, 1.8g carbon nano-fiber, 8g polyether polyol, 3g low-temperature expansion stone
Ink and 0.7g microcapsule red phosphorus are put into reaction kettle, under the conditions of 60 DEG C of temperature, are carried out ultrasonic vibration scatter operation, are obtained
Mixture；
The temperature of mixture is cooled to 35 DEG C by the way of recirculated cooling water, then by 90g polyacrylate water-base cement
Liquid is added into mixture after cooling, after mixing, obtains just latex；
The pH value of the just latex is adjusted to 7.5 again, then is filtered operation, is specifically comprised the following steps: colostrum
Glue is at the uniform velocity injected into the hopper of vacuum filter, and the vacuum filter has vacuum pump, is installed on the hopper
One pressurizing device, wherein the pressurizing device is the device that air compressor machine is similarly used for air-blowing pressurization；Start vacuum pump, into
Row is filtered under diminished pressure, and closes vacuum pump after filtering 20min；Start the pressurizing device on hopper, carries out pressure filtration, filtration time
For 5min；Pressurizing device is closed, starts vacuum pump, is filtered under diminished pressure, closes vacuum pump after filtering 10min；Start hopper
On pressurizing device, carry out pressure filtration, filtration time 10min；Pressurizing device is closed, starts vacuum pump, depressurized
Filter closes vacuum pump after filtering 5min；Start the pressurizing device on hopper, carries out pressure filtration, filtration time 20min；
Pressurizing device is closed, filter operation is completed, obtains the polyacrylate latex of embodiment 1.
Embodiment 2
The offer aqueous glue of 100g polyacrylate, 1.5g nano-graphene, 1g carbon nanotube, 2.6g carbon nano-fiber,
11g polyether polyol, 5g low-temperature expansion graphite and 1.2g zinc borate；
By 1.5g nano-graphene, 1g carbon nanotube, 2.6g carbon nano-fiber, 11g polyether polyol, 5g low-temperature expansion stone
Ink and 1.2g zinc borate are put into reaction kettle, under the conditions of 75 DEG C of temperature, are carried out ultrasonic vibration scatter operation, are mixed
Object；
The temperature of mixture is cooled to 40 DEG C by the way of recirculated cooling water, then by 100g polyacrylate water-base cement
Liquid is added into mixture after cooling, after mixing, obtains just latex；
The pH value of the just latex is adjusted to 9.0 again, then is filtered operation, is specifically comprised the following steps: colostrum
Glue is at the uniform velocity injected into the hopper of vacuum filter, and the vacuum filter has vacuum pump, is installed on the hopper
One pressurizing device, wherein the pressurizing device is the device that air compressor machine is similarly used for air-blowing pressurization；Start vacuum pump, into
Row is filtered under diminished pressure, and closes vacuum pump after filtering 22min；Start the pressurizing device on hopper, carries out pressure filtration, filtration time
For 7min；Pressurizing device is closed, starts vacuum pump, is filtered under diminished pressure, closes vacuum pump after filtering 12min；Start hopper
On pressurizing device, carry out pressure filtration, filtration time 12min；Pressurizing device is closed, starts vacuum pump, depressurized
Filter closes vacuum pump after filtering 7min；Start the pressurizing device on hopper, carries out pressure filtration, filtration time 22min；
Pressurizing device is closed, filter operation is completed, obtains the polyacrylate latex of embodiment 2.
Embodiment 3
The offer aqueous glue of 95g polyacrylate, 1.2g nano-graphene, 0.8g carbon nanotube, 2.1g carbon nano-fiber,
9.0g polyether polyol, 3.8g low-temperature expansion graphite and 0.9g aluminium hydroxide；
By 1.2g nano-graphene, 0.8g carbon nanotube, 2.1g carbon nano-fiber, 9.0g polyether polyol, 3.8g low temperature
Expanded graphite and 0.9g aluminium hydroxide are put into reaction kettle, under the conditions of 65 DEG C of temperature, carry out ultrasonic vibration scatter operation,
Obtain mixture；
The temperature of mixture is cooled to 37 DEG C by the way of recirculated cooling water, then by 95g polyacrylate water-base cement
Liquid is added into mixture after cooling, after mixing, obtains just latex；
The pH value of the just latex is adjusted to 8.0 again, then is filtered operation, is specifically comprised the following steps: colostrum
Glue is at the uniform velocity injected into the hopper of vacuum filter, and the vacuum filter has vacuum pump, is installed on the hopper
One pressurizing device, wherein the pressurizing device is the device that air compressor machine is similarly used for air-blowing pressurization；Start vacuum pump, into
Row is filtered under diminished pressure, and closes vacuum pump after filtering 21min；Start the pressurizing device on hopper, carries out pressure filtration, filtration time
For 6min；Pressurizing device is closed, starts vacuum pump, is filtered under diminished pressure, closes vacuum pump after filtering 11min；Start hopper
On pressurizing device, carry out pressure filtration, filtration time 11min；Pressurizing device is closed, starts vacuum pump, depressurized
Filter closes vacuum pump after filtering 6min；Start the pressurizing device on hopper, carries out pressure filtration, filtration time 21min；
Pressurizing device is closed, filter operation is completed, obtains the polyacrylate latex of embodiment 3.
It is proved through experiment, the polyacrylate latex of 1~embodiment of embodiment 3 all has heat dissipation performance outstanding and fire-retardant
Performance, and environmental-protecting performance is also preferable, the film forming after brushing to after in equipment is very good, and has good heat dissipation for equipment
Effect.Especially the heat dissipation performance of the polyacrylate latex of embodiment 3 and flame retardant property are most prominent.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of polyacrylate latex, which is characterized in that each component including following mass parts:
2. polyacrylate latex according to claim 1, which is characterized in that each component including following mass parts:
3. polyacrylate latex according to claim 2, which is characterized in that each component including following mass parts:
4. polyacrylate latex according to claim 1, which is characterized in that the fire retardant is antimony oxide, micro-
At least one of capsule red phosphorus, melamine, zinc borate and aluminium hydroxide.
5. polyacrylate latex according to claim 1, which is characterized in that the partial size of the nano-graphene is 25nm
~35nm.
6. polyacrylate latex according to claim 1, which is characterized in that the partial size of the carbon nanotube be 8nm~
15nm。
7. polyacrylate latex according to claim 1, which is characterized in that the diameter of the carbon nano-fiber is 10 μm
~20 μm.
8. a kind of preparation method of polyacrylate latex, which comprises the following steps:
The aqueous glue of polyacrylate, nano-graphene, carbon nanotube, carbon nano-fiber, polyether polyol, low-temperature expansion are provided
Graphite and fire retardant, wherein the aqueous glue of the polyacrylate, the nano-graphene, the carbon nanotube, the nanometer
Carbon fiber, the polyether polyol, the low-temperature expansion graphite and the fire retardant mass ratio be (90~100): (1~
1.5): (0.5~1): (1.8~2.6): (8~11): (3~5): (0.7~1.2)；
By the nano-graphene, the carbon nanotube, the carbon nano-fiber, the polyether polyol, the low-temperature expansion
Graphite and the fire retardant are put into reaction kettle, under the conditions of 60 DEG C~75 DEG C of temperature, carry out ultrasonic vibration scatter operation,
Obtain mixture；
The mixture is subjected to cooling down operation, the aqueous glue of the polyacrylate is added to the mixture after cooling
In, after mixing, obtain just latex；
The just latex is filtered operation, obtains polyacrylate latex.
9. the preparation method of polyacrylate latex according to claim 8, which is characterized in that described by the mixture
It carries out that the temperature of the mixture is cooled to 35 DEG C~40 DEG C in cooling down operation.
10. the preparation method of polyacrylate latex according to claim 8, which is characterized in that will it is described just latex into
Before row filter operation, the pH value of the just latex is also adjusted to 7.5~9.0.
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| CN111534181A (en) * | 2020-06-30 | 2020-08-14 | 南京工业大学 | Water-based ultrathin steel structure fireproof coating and preparation method thereof |
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