CN109401497A - Water based emulsion and preparation method thereof based on polyacrylate - Google Patents
Water based emulsion and preparation method thereof based on polyacrylate Download PDFInfo
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- CN109401497A CN109401497A CN201811259269.6A CN201811259269A CN109401497A CN 109401497 A CN109401497 A CN 109401497A CN 201811259269 A CN201811259269 A CN 201811259269A CN 109401497 A CN109401497 A CN 109401497A
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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
-
- 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
- C09D5/02—Emulsion paints including aerosols
- C09D5/022—Emulsions, e.g. oil in water
-
- 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
- C09D5/02—Emulsion paints including aerosols
- C09D5/024—Emulsion paints including aerosols characterised by the additives
-
- 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
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/085—Copper
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
Abstract
A kind of water based emulsion and preparation method thereof based on polyacrylate, the water based emulsion based on polyacrylate include each component of following mass parts: 85 parts~120 parts of polyacrylate glue, 0.5 part~1.5 parts of fine grain copper powder；0.3 part~1.2 parts of fine grain hexagonal boron nitride powder, 0.2 part~1.3 parts of fine grain aluminium oxide powder, 15 parts~20 parts of ammonium polyphosphate, 1.0 parts~1.5 parts and 0.6 part~1.3 parts of fireproof agent of tetramethylol methane.The above-mentioned water based emulsion based on polyacrylate uses polyacrylate glue for film forming agent, it is equipped with the good fine grain copper powder of heat dissipation performance, fine grain hexagonal boron nitride powder, fine grain aluminium oxide powder, tetramethylol methane again, it is equipped with the good ammonium polyphosphate of flame retardant property and fireproof agent again, so that the water based emulsion of polyacrylate not only has good environmental-protecting performance, while also there is excellent heat dissipation performance and fire protecting performance.
Description
Technical field
The present invention relates to latex fields, more particularly to a kind of based on the water based emulsion of polyacrylate and its preparation side
Method.
Background technique
Polyacrylate water based emulsion be esters of acrylic acid or methyl acrylic ester and other vinyl ester monomers into
The product of row emulsion 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, the problem that existing polyacrylate water based emulsion is not strong enough there are still environmental-protecting performance, for example, VOC (is waved
Hair property organic compound) content is higher, thus cause damages to human health, it is short when the VOC in room reaches a certain concentration
People can feel headache, Nausea and vomiting, out of strength etc. in time, will appear twitch, stupor when serious, and can hurt the liver of people
Dirty, kidney, brain and nervous system cause the serious consequences such as failure of memory, in addition, brushing the polyacrylic acid in equipment surface
If ester water based emulsion heat dissipation performance is bad, it is likely that it will lead to equipment and break down after certain time running because of overheat,
The dangerous situations such as fire even occur.
Summary of the invention
The purpose of the present invention is overcoming shortcoming in the prior art, provides and a kind of have both excellent environmental-protecting performance, dissipate
The water based emulsion and preparation method thereof based on polyacrylate of hot property and fire protecting performance.
The purpose of the present invention is achieved through the following technical solutions:
The water based emulsion based on polyacrylate of one embodiment, each component including following mass parts:
The water based emulsion based on polyacrylate of another embodiment, each component including following mass parts:
The water based emulsion based on polyacrylate of a further embodiment, each component including following mass parts:
The fireproof agent is ammonium chloride, triphenyl phosphate, melamine, decabrominated dipheny second in one of the embodiments,
At least one of alkane and magnesium hydroxide.
The partial size of the fine grain copper powder is 20nm~30nm in one of the embodiments,.
The partial size of the fine grain hexagonal boron nitride powder is 7nm~13nm in one of the embodiments,.
In one of the embodiments, the partial size of the fine grain aluminium oxide powder is 11nm~18nm.
The preparation method of the water based emulsion based on polyacrylate of one embodiment, comprising the following steps:
There is provided polyacrylate glue, fine grain copper powder, fine grain hexagonal boron nitride powder, fine grain aluminium oxide powder,
Ammonium polyphosphate, tetramethylol methane and fireproof agent, wherein the polyacrylate glue, the fine grain copper powder, the particulate
Diameter hexagonal boron nitride powder, the fine grain aluminium oxide powder, the ammonium polyphosphate, the tetramethylol methane and the fire prevention
The mass ratio of agent is (85~120): (0.5~1.5): (0.3~1.2): (0.2~0.3): (15~20): (1.0~1.5):
(0.6~1.3)；
By the fine grain copper powder, the fine grain hexagonal boron nitride powder, the fine grain aluminium oxide powder, described poly-
Ammonium phosphate, the tetramethylol methane and the fireproof agent are put into reaction kettle, under the conditions of 60 DEG C~75 DEG C of temperature, into
Row ultrasonic vibration scatter operation, obtains mixture；
The mixture is subjected to cooling down operation, the polyacrylate glue is added to the mixture after cooling
In, after mixing, obtain just latex；
The just latex is filtered operation, obtains the water based emulsion based on polyacrylate.
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 37 DEG C~42 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 7.8~9.5.
The above-mentioned water based emulsion and preparation method thereof based on polyacrylate, the water based emulsion based on polyacrylate include
The each component of following mass parts: 85 parts~120 parts of polyacrylate glue, 0.5 part~1.5 parts of fine grain copper powder；Fine grain six
0.3 part~1.2 parts of square boron nitride powder, 0.2 part~1.3 parts of fine grain aluminium oxide powder, 15 parts~20 parts of ammonium polyphosphate, four hydroxyls
1.0 parts~1.5 parts and 0.6 part~1.3 parts of fireproof agent of methylmethane.The above-mentioned water based emulsion based on polyacrylate uses poly- third
Olefin(e) acid ester gum liquid is film forming agent, then is equipped with the good fine grain copper powder of heat dissipation performance, fine grain hexagonal boron nitride powder, fine grain three
Al 2 O powder, tetramethylol methane, then it is equipped with the good ammonium polyphosphate of flame retardant property and fireproof agent, so that polyacrylate
Water based emulsion not only has good environmental-protecting performance, while also having excellent heat dissipation performance and fire protecting performance.
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 water based emulsion preparation method based on polyacrylate 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 water based emulsion based on polyacrylate of one embodiment, each component including following mass parts:
The above-mentioned water based emulsion based on polyacrylate uses polyacrylate glue for film forming agent, then is equipped with heat dissipation performance
Good fine grain copper powder, fine grain hexagonal boron nitride powder, fine grain aluminium oxide powder, tetramethylol methane, then it is equipped with resistance
Ammonium polyphosphate of good performance and fireproof agent are fired, so that the water based emulsion of polyacrylate not only has good environmental-protecting performance,
Also there is excellent heat dissipation performance and fire protecting performance simultaneously.
The water based emulsion based on polyacrylate of another embodiment, each component including following mass parts:
By adjusting the proportion of each component of the water based emulsion based on polyacrylate, enable to be prepared based on
The environmental-protecting performance of the water based emulsion of polyacrylate, heat dissipation performance and fire protecting performance are more preferable.
The water based emulsion based on polyacrylate of a further embodiment, each component including following mass parts:
By further adjusting the proportion of each component of the water based emulsion based on polyacrylate, enable to be prepared
The environmental-protecting performance of the water based emulsion based on polyacrylate, heat dissipation performance and fire protecting performance it is more preferable.
In order to improve the environmental-protecting performance of the water based emulsion based on polyacrylate, the polyacrylate glue further include as
The each component of lower mass parts:
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, using polyacrylate mixture as the water based emulsion based on polyacrylate
Be primarily intended for raw material, can be improved the adhesion of the water based emulsion based on polyacrylate, be brushed in equipment after it is attached
Put forth effort stronger, while there is better 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.
It is described poly- in one of the embodiments, in order to improve the environmental-protecting performance of the water based emulsion based on polyacrylate
Esters of acrylic acid mixture includes each component of following mass parts: 4 parts~13 parts butyl acrylates, 3 parts~11 parts acrylic acid rings
Own ester, 3 parts~10 parts lauryl methacrylates, 2 parts~9 parts methoxyethyl methacrylates, 2 parts~8 parts metering systems
Sour hydroxyl ethyl ester, 1 part~6 parts acrylic acid, 1 part~7 parts maleic anhydrides and 2 parts~7 parts dimethylacrylamide.It is appreciated that third
Olefin(e) acid butyl ester and cyclohexyl acrylate belong to soft monomer, can be with various hard monomers and functional monomer's such as lauryl
Ester, acrylic acid, maleic anhydride and dimethylacrylamide are copolymerized, are crosslinked and are grafted, and the polyacrylic of emulsion-type is capable of
Mixture.In order to further increase the performance of the water based emulsion based on polyacrylate, for example, the polyacrylate mixes
Object includes each component of following mass parts: 6 parts~10 parts butyl acrylates, 5 parts~8 parts cyclohexyl acrylates, 4 parts~7 parts first
Base lauryl acrylate, 4 parts~8 parts methoxyethyl methacrylates, 3 parts~6 parts hydroxyethyl methacrylates, 2 parts~5 parts
Acrylic acid, 3 parts~6 parts maleic anhydrides and 3 parts~5 parts dimethylacrylamide, for another example, the polyacrylate mixture packet
Include each component of following mass parts: 8 parts of butyl acrylates, 7 parts of cyclohexyl acrylates, 5 parts of lauryl methacrylates, 4 parts of first
Base methoxyethyl acrylate, 3 parts of hydroxyethyl methacrylates, 3 parts of acrylic acid, 4 parts of maleic anhydrides and 4 parts of dimethyl allene acyls
Amine so, it is possible so that the adhesion of the polyacrylate mixture is more preferable, it is easier to brush, and weatherability is more preferable.
It should be noted that polyacrylate glue provided by the invention uses pure water as solvent, when eliminating construction
Fire risk is reduced to atmosphere pollution, and be easier to brush, it is dry rapidly, film is water-fast, scrub resistance is good, the feature of environmental protection
It can be more preferable with security performance.
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.In order to which the more stable polyacrylate glue of performance, the in one of the embodiments, initiation is prepared
Agent is soluble persulfate.For example, it is described solubility persulfate be potassium peroxydisulfate, sodium peroxydisulfate and ammonium persulfate in extremely
Few one kind, during so, it is possible so that preparing polyacrylate glue, when carrying out polymerization reaction can more smoothly into
Row, meanwhile, it also can be improved the rate of polymerization reaction, so that the quality for the polyacrylate glue being prepared is more preferable.Certainly,
The initiator can also be capable of the substance of initiated polymerization for other, for example, the initiator can also be different for azo two
At least one in butyronitrile, azobisisoheptonitrile, azobisisovaleronitrile, azo diisopropyl imidazoline hydrochloride and azo-bis-iso-dimethyl
Kind, it so, it is possible so that the performance of polyacrylate glue is more stable, quality is more preferable.
In order to which the feature of environmental protection and the better polyacrylate glue of safety is prepared, institute in one of the embodiments,
State each component that emulsifier includes following mass parts: 2 parts~6 parts starch polyglycoside surfactants, 1 part~4 parts fatty alcohol polyoxies
Vinethene 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 environmental-protecting performance and the safety of polyacrylate glue
Energy.In order to further improve the environmental-protecting performance and security performance of polyacrylate glue, for another example, the emulsifier includes as follows
The each component of mass parts: 2 parts~6 parts starch polyglycoside surfactants, 1 part~4 parts fatty alcohol polyoxyethylene ether and 1 part~5 parts
Coconutalkyl oxalamide, in this way, the emulsifier has stronger surface-active, emulsifying capacity is greatly improved, simultaneously also
It ensure that the feature of environmental protection and safety of polyacrylate glue.
In order to improve the covering power and tinting strength, tinting power and environmental-protecting performance of the water based emulsion based on polyacrylate, wherein one
In a embodiment, the pigment is titanium white, iron oxide red, carbon black, lampblack, black iron oxide, red iron oxide, chrome yellow, phthalocyanine green, phenol
It is red, quinacridone is red, at least one of alum, magnesium hydroxide, magnesia and carclazyte.It is appreciated that one of latex is main
Function is to confer to coated article appearance with colour, while can cover to get up to prevent it from appearing by the appearance of coated object, in this way,
The pigment that water based emulsion provided by the invention based on polyacrylate uses is titanium white, iron oxide red, carbon black, lampblack, black oxidation
Iron, red iron oxide, chrome yellow, phthalocyanine green, phenol red, quinacridone is red, in alum, magnesium hydroxide, magnesia and carclazyte at least
One kind, can not only improve the covering power and tinting strength, tinting power of the water based emulsion based on polyacrylate, while will not also to be based on
Soluble heavy metal in the water based emulsion of polyacrylate is exceeded, improves environmental-protecting performance and security performance.
In order to improve the quality of the water based emulsion based on polyacrylate, the filler is in one of the embodiments,
In powdered whiting, barium carbonate, blanc fixe, talcum powder, mica powder, wollastonite, calcined kaolin and diatomite at least
It is a kind of.It is appreciated that on the one hand filler plays the role of constitution filling, another in the water based emulsion based on polyacrylate
Aspect also functions to certain covering effect, in this way, the water based emulsion provided by the invention based on polyacrylate uses heavy carbon
At least one of sour calcium, barium carbonate, blanc fixe, talcum powder, mica powder, wollastonite, calcined kaolin and diatomite, energy
The quality of the water based emulsion based on polyacrylate is enough greatly improved, for example, calcined kaolin and diatom with porous structure
Soil can the harmful substances such as PARA FORMALDEHYDE PRILLS(91,95) and volatile organic compounds adsorbed and explained, substantially increase based on polyacrylic acid
The environmental-protecting performance and security performance of the water based emulsion of ester.
In order to further increase the adhesion and weatherability of the water based emulsion based on polyacrylate, while improving its environmental protection
Performance and security performance, the auxiliary agent is dispersing agent, wetting agent, levelling agent, defoaming agent, thickening in one of the embodiments,
Agent, nano inorganic anion remove 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 the water based emulsion based on polyacrylate mixed with lotion it is more uniform so that base
It is higher in the stability of the water based emulsion of polyacrylate, for example, the dispersing agent is sodium laurate, stearic acid sodium, pyrophosphoric acid
At least one of sodium and methyl hydroxyethylcellulose so, it is possible so that the water based emulsion system based on polyacrylate point
Scattered is more uniform, and stability is more preferable；For example, the auxiliary agent is levelling agent, so, it is possible so that the water based on polyacrylate
Property latex forms a more smooth, smooth and uniform film during drying and forming-film, substantially improves based on polypropylene
The permeability of the water based emulsion of acid esters effectively reduces the water based emulsion based on polyacrylate and generates spot and spot when brushing
A possibility that, increase spreadability, for example, the levelling agent is polyacrylic acid or hydroxymethyl cellulose, so, it is possible so that being based on
The water based emulsion of polyacrylate forms more smooth, smooth and uniform film；For example, the auxiliary agent is defoaming agent, in this way,
The foam that material is formed in process of production can be eliminated, the quality of the water based emulsion based on polyacrylate, example are greatly improved
Such as, the defoaming agent is dimethyl silicone polymer, and the antifoaming speed of dimethyl silicone polymer is fast, and dispersion performance is excellent, especially
It is not easy the floating oil that is demulsified after dilution, the foam inhibition time is long, and high-efficient, dosage is low, and nontoxic, corrosion-free, no adverse side effect, by
In easily dispersing in water, it can mix well with liquid product, be not easy the floating oil that is demulsified, be a kind of quality-high and inexpensive general room temperature
Type defoaming agent；For example, the defoaming agent is polyoxypropylene ethylene oxide glycerin ether, the foam inhibition of polyoxypropylene ethylene oxide glycerin ether
Time is long, effect is good, antifoaming speed is fast, thermal stability is good；For example, the defoaming agent is higher alcohols, higher alcohols are strong hydrophobic weak
Hydrophilic linear molecule is effectively defoaming agent in aqueous systems；For another example, the defoaming agent is dimethyl silicone polymer, gathers
Mixture foam killer obtained by oxypropylene ethylene oxide glycerin ether and higher alcohols are prepared, wherein the dimethyl silicone polymer, described
The mass ratio of polyoxypropylene ethylene oxide glycerin ether and the higher alcohols is (0.5~0.8): (0.2~0.5): (0.3~
0.7) it, so, it is possible to eliminate the foam that material is formed in process of production, greatly improve the water based emulsion based on polyacrylate
Quality；For example, the auxiliary agent is thickener, it so, it is possible the viscosity for increasing latex, reduce the substance of mobility, improve base
In the film forming of the water based emulsion of polyacrylate, for example, the thickener is hydroxyethyl cellulose, pentaerythrite stearic acid
At least one of ester, Sodium Polyacrylate and trihydroxy tristerin, so, it is possible to greatly improve based on polyacrylate
Water based emulsion viscosity and stability, more conducively form a 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, it substantially increases based on polyacrylic acid
The environmental-protecting performance and security performance of the water based emulsion of ester；In order to further increase the environmental protection of the water based emulsion based on polyacrylate
Performance and security performance, the nanometer polymer tiny balloon is polymethylacrylic acid-divinyl in one of the embodiments,
Benzene tiny balloon, wherein the polymethylacrylic acid-divinylbenzene tiny balloon partial size is 40nm~100nm, in this way, institute
State that polymethylacrylic acid-divinylbenzene tiny balloon nanoscale is tiny and regular and uniform hole can effectively adsorb room
In formaldehyde and volatile organic compounds isopolarity harmful substance；For another example, the auxiliary agent is preservative, it will be understood that aqueous
Contain a large amount of moisture and nutriment in latex, if storage is improper, be easy the pollution by bacterium, to cause the glutinous of water based emulsion
Decline, corruption, gas making, demulsification and other harmful physical and chemical changes are spent, in this way, provided by the invention be based on polypropylene
The water based emulsion of acid esters is also added into preservative, for example, the preservative is potassium sorbate, so, it is possible to greatly improve and is based on
The storage stability of the water based emulsion of polyacrylate.
In another embodiment, a kind of preparation method of polyacrylate glue, 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
The water based emulsion based on polyacrylate can be prepared in agent, emulsifier and auxiliary agent, wherein the polyacrylate is mixed
Close object, the 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 and be easy to apply
Brush, adhesion and weatherability are good, and especially content of volatile organic compound is lower, and environmental-protecting performance and security performance are more preferable
, it is more suitable for the water based emulsion based on polyacrylate brushed within the walls.
In order to improve the performance of the water based emulsion based on polyacrylate, the polypropylene in one of the embodiments,
Esters of gallic acid mixture includes each component of following mass parts: 4 parts~13 parts butyl acrylates, 3 parts~11 parts cyclohexyl acrylates,
3 parts~10 parts lauryl methacrylates, 2 parts~9 parts methoxyethyl methacrylates, 2 parts~8 parts hydroxyethyl methacrylate second
Ester, 1 part~6 parts acrylic acid, 1 part~7 parts maleic anhydrides and 2 parts~7 parts dimethylacrylamide.It is appreciated that acrylic acid fourth
Ester and cyclohexyl acrylate belong to soft monomer, can be with various hard monomers and functional monomer such as lauryl methacrylate, third
Olefin(e) acid, maleic anhydride and dimethylacrylamide are copolymerized, are crosslinked and are grafted, and the polyacrylic mixing of emulsion-type is capable of
Object.In order to further increase the performance of the water based emulsion based on polyacrylate, for example, the polyacrylate mixture packet
Include each component of following mass parts: 6 parts~10 parts butyl acrylates, 5 parts~8 parts cyclohexyl acrylates, 4 parts~7 parts methyl-props
Olefin(e) acid lauryl, 4 parts~8 parts methoxyethyl methacrylates, 3 parts~6 parts hydroxyethyl methacrylates, 2 parts~5 parts propylene
Acid, 3 parts~6 parts maleic anhydrides and 3 parts~5 parts dimethylacrylamide, for another example, the polyacrylate mixture include with
The each component of lower mass parts: 8 parts of butyl acrylates, 7 parts of cyclohexyl acrylates, 5 parts of lauryl methacrylates, 4 parts of methyl-props
Olefin(e) acid methoxy acrylate, 3 parts of hydroxyethyl methacrylates, 3 parts of acrylic acid, 4 parts of maleic anhydrides and 4 parts of dimethylacrylamide,
It so, it is possible so that the adhesion of the polyacrylate 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 water based emulsion based on polyacrylate 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 the better base of security performance
In the water based emulsion of polyacrylate, for example, the mode of the polymerization reaction is radiation-induced emulsion polymerization mode, mini-emulsion polymerization side
One of formula, in-situ emulsion polymerization mode and seeded emulsion polymerization mode so, it is possible to obtain the better copolymer of quality,
And then be conducive to it is subsequent be prepared be easy to brush, adhesion and weatherability it is good, and environmental-protecting performance and the better base of security performance
In the water based emulsion of polyacrylate.
S114, after cooling down the copolymer, it is filtered operation, obtains polyacrylate glue.
After cooling down the copolymer, then it is filtered operation, polyacrylate glue can be obtained.It can manage
Solution can generate a large amount of waste heat in the polymerization reaction, need to be transferred into natural environment with heat transfer medium in time, to protect
The normal operation for demonstrate,proving polyacrylate glue production process, for example, being carried out the copolymer by the way of recirculated cooling water
It is cooling, it so, it is possible the normal operation for guaranteeing production system, and bad utilize and energy saving can be followed.
By being filtered after the copolymer cooling operation, some unreacted originals in reaction system can be removed
Material or contamination precipitation, can obtain the better polyacrylate glue of quality.
It is described anti-in one of the embodiments, in order to improve the fire protecting performance of the water based emulsion based on polyacrylate
Fiery agent is at least one of ammonium chloride, triphenyl phosphate, melamine, decabromodiphenylethane and magnesium hydroxide.
It is appreciated that fireproof agent type selection and dosage for the water based emulsion based on polyacrylate fire protecting performance
With important influence, addition fireproof agent enables to described based on poly- third in the water based emulsion based on polyacrylate
The water based emulsion of olefin(e) acid ester has good fire protecting performance, for example, the fireproof agent is ammonium chloride, triphenyl phosphate, melamine
The mixture of amine, decabromodiphenylethane and magnesium hydroxide, in this way, brushing when encountering high temperature or fire on equipment surface layer
Water based emulsion based on polyacrylate can play good flameproof effect to equipment.For another example, the fireproof agent is melamine
Amine, it will be understood that melamine is the tripolymer of cyanamide, and melamine can release a large amount of non-flammable when being thermally decomposed
The contact of nitrogen, starvation and equipment, in addition, due to that can discharge non-flammable gas, melamine can also play hair
The effect of infusion so that based on the water based emulsion of polyacrylate under conditions of reaching softening point foaming and intumescing formed it is spongy
Carburization zone further improve the aqueous cream based on polyacrylate so as to further play barrier action to equipment
The fire protecting performance of glue.
In order to further increase the fire protecting performance of the water based emulsion based on polyacrylate, also based on polyacrylate
Ammonium polyphosphate is added in water based emulsion, it will be understood that ammonium polyphosphate is also known as ammonium polyphosphate or polycondensation ammonium phosphate (abbreviation APP).
Ammonium polyphosphate belongs to inorganic phosphorus flame retardant, is a kind of non-halogen fire retardant of function admirable, contains phosphorus, nitrogen two simultaneously in molecule
Kind element, during fire-retardant, phosphorus, nitrogen have cooperative flame retardant effect, thus flame retardant effect is better than containing single phosphorus fire retardant or nitrogenous
Fire retardant.Ammonium polyphosphate have phosphorus content is big, nitrogen content is high, thermal stability is good, good dispersion, it is non-toxic and tasteless, do not generate corrosion
The characteristics of gas, can greatly improve in this way, ammonium polyphosphate is added in the water based emulsion based on polyacrylate based on poly- third
The fire protecting performance of the water based emulsion of olefin(e) acid ester.
In order to further increase the fire protecting performance of the water based emulsion based on polyacrylate, also based on polyacrylate
Tetramethylol methane is added in water based emulsion, it will be understood that tetramethylol methane is a kind of important polyol compound, is played
The effect of carburization agent, it will be understood that carburization agent can be esterified under the action of dehydration catalyst and be dehydrated into carbon, and carbide is foaming
Closed three-dimensional honeycomb carburization zone can also be formed under the inert gas effect that agent is decomposed, the carburization zone can be closed and be set
It is standby, gas diffusion is prevented, while external oxygen being prevented to be diffused into equipment surface, achievees the purpose that fire-proof and thermal-insulation.
In order to improve the heat dissipation performance of the water based emulsion based on polyacrylate, also in the water based on polyacrylate
Property latex in joined fine grain copper powder, for example, the partial size of the fine grain copper powder be 20nm~30nm, so, it is possible into one
Step improves the heat dissipation performance of the water based emulsion based on polyacrylate.
In order to further increase the heat dissipation performance of the water based emulsion based on polyacrylate, polyacrylic acid also is based on described
It joined fine grain hexagonal boron nitride powder in the water based emulsion of ester, for example, the partial size of the fine grain hexagonal boron nitride powder is 7nm
~13nm so, it is possible the heat dissipation performance for further increasing the water based emulsion based on polyacrylate.
In order to further improve the heat dissipation performance of the water based emulsion based on polyacrylate, polypropylene also is based on described
It joined fine grain aluminium oxide powder in the water based emulsion of acid esters, for example, the partial size of the fine grain aluminium oxide powder is
11nm~18nm so, it is possible the heat dissipation performance for further increasing the water based emulsion based on polyacrylate.
Referring to Fig. 1, the preparation method of the water based emulsion based on polyacrylate of an embodiment, including following step
It is rapid:
S110, polyacrylate glue, fine grain copper powder, fine grain hexagonal boron nitride powder, the oxidation of fine grain three two are provided
Aluminium powder, ammonium polyphosphate, tetramethylol methane and fireproof agent, wherein the polyacrylate glue, the fine grain copper powder, institute
State fine grain hexagonal boron nitride powder, the fine grain aluminium oxide powder, the ammonium polyphosphate, the tetramethylol methane and institute
The mass ratio for stating fireproof agent is (85~120): (0.5~1.5): (0.3~1.2): (0.2~0.3): (15~20): (1.0
~1.5): (0.6~1.3).
By providing polyacrylate glue as film forming agent, so that the feature of environmental protection of the water based emulsion based on polyacrylate
It can greatly improve, then be equipped with the good fine grain copper powder of heat dissipation performance, fine grain hexagonal boron nitride powder, fine grain aluminum oxide
Powder, tetramethylol methane, then it is equipped with the good ammonium polyphosphate of flame retardant property and fireproof agent, so that based on the aqueous of polyacrylate
Latex not only has good environmental-protecting performance, while also having excellent heat dissipation performance and fire protecting performance, is based on gathering to improve
The heat dissipation and fire protecting performance of the water based emulsion of acrylate, wherein the polyacrylate glue, the fine grain copper powder, institute
State fine grain hexagonal boron nitride powder, the fine grain aluminium oxide powder, the ammonium polyphosphate, the tetramethylol methane and institute
The mass ratio for stating fireproof agent is (85~120): (0.5~1.5): (0.3~1.2): (0.2~0.3): (15~20): (1.0
~1.5): (0.6~1.3) so, it is possible the performance for further increasing the water based emulsion based on polyacrylate.
S120, by the fine grain copper powder, the fine grain hexagonal boron nitride powder, the fine grain aluminium oxide powder,
The ammonium polyphosphate, the tetramethylol methane and the fireproof agent are put into reaction kettle, in 60 DEG C~75 DEG C of temperature strip
Under part, ultrasonic vibration scatter operation is carried out, mixture is obtained.
By by the fine grain copper powder, the fine grain hexagonal boron nitride powder, the fine grain aluminium oxide powder, institute
It states ammonium polyphosphate, the tetramethylol methane and the fireproof agent to put into reaction kettle, in 60 DEG C~75 DEG C of temperature condition
Under, ultrasonic vibration scatter operation is carried out, enables to said components to be sufficiently mixed uniformly, obtains mixture, obtained conducive to subsequent
Performance is preferably based on the water based emulsion of polyacrylate.
S130, the mixture is subjected to cooling down operation, the polyacrylate glue is added to described after cooling
In mixture, 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 polyacrylate glue is added to the mixture after cooling
In, after mixing, colostrum glue can be obtained.For example, cooled down the mixture by the way of recirculated cooling water,
In one embodiment, it for example, the temperature of the mixture is cooled to 37 DEG C~42 DEG C, so, it is possible to guarantee based on poly-
The normal operation of the water based emulsion preparation process of acrylate.
S140, the just latex is filtered operation, obtains the water based emulsion based on polyacrylate.
By the way that the just latex is filtered operation, the water based emulsion based on polyacrylate can be obtained.In order to mention
The just latex is filtered operation in one of the embodiments, by the quality of water based emulsion of the height based on polyacrylate
Before, the pH value of the just latex is also adjusted to 7.8~9.0.It is appreciated that the pH value of latex has very greatly the stability of latex
It influencing, fresh latex is in neutrality, slightly weak base sexual orientation, and pH value is 7~7.2, by a few hours to more than ten hour, due to
The influence of bacterium and enzyme in latex, pH value can decrease and become acid, so that causing to solidify, be based on polypropylene to improve
The stability of the water based emulsion of acid esters, for example, using oxygen sodium hydroxide solution or oxygen potassium oxide solution will the just latex pH value
7.8~9.5 are adjusted to, so, it is possible the stability and storage stability that greatly improve the water based emulsion based on polyacrylate.
In order to improve the quality of the water based emulsion based on polyacrylate, for example, the filter operation specifically include it is as follows
Step: S141: the just latex is at the uniform velocity injected into the hopper of vacuum filter, the vacuum filter has vacuum
Pump installs a pressurizing device on the hopper, wherein the pressurizing device is that air compressor machine is similarly used for air-blowing pressurization
Device；S142: starting vacuum pump is filtered under diminished pressure, closes vacuum pump after filtering 20~22min；Start on hopper
Pressurizing device, carries out pressure filtration, and filtration time is 5~7min；S143: closing pressurizing device, starts vacuum pump, is depressurized
Filtering closes vacuum pump after filtering 10~12min；Start the pressurizing device on hopper, carry out pressure filtration, filtration time is
10~12min；S144: closing pressurizing device, starts vacuum pump, is filtered under diminished pressure, and closes vacuum pump after filtering 5~7min；
Start the pressurizing device on hopper, carry out pressure filtration, filtration time is 20~22min；S145: closing pressurizing device, complete
At filter operation, the water based emulsion based on polyacrylate is obtained, in this way, using above-mentioned intermittent pressurization and being filtered under diminished pressure operation
Method is filtered operation to the just latex, and when starting to be filtered operation, it is longer to be filtered under diminished pressure the progress time, and pressurizes
The filtering progress time is shorter, this is because, just the viscosity of latex is relatively low described in filtering initial stage, the impurity or big on strainer
Water based emulsion particle of the partial size based on polyacrylate is less, and filter efficiency is higher, therefore it is more relatively long to be filtered under diminished pressure the progress time；
But with the continuous progress of filtering, the big partial size emulsion particle and impurity being attached on strainer are more and more, and blockage problem occurs ground
More and more frequently, it is at this moment filtered under diminished pressure and pressure filtration using the identical time；Arrived the filter operation later period, then using compared with
Short is filtered under diminished pressure the time, and carries out pressure filtration using the longer time, in this way, in conjunction with the self character of the just latex,
Using intermittent pressurization and it is filtered under diminished pressure operating method, filter efficiency can be greatly improved, and shorten filtration time, Jin Erti
The high efficiency that the more excellent water based emulsion based on polyacrylate of quality is prepared.
It is below specific embodiment part.
Embodiment 1
85g polyacrylate glue, 0.5g fine grain copper powder, 0.3g fine grain hexagonal boron nitride powder, 0.2g particulate are provided
Diameter aluminium oxide powder, 15g ammonium polyphosphate, 1.0g tetramethylol methane and 0.6g ammonium chloride；
By 0.5g fine grain copper powder, 0.3g fine grain hexagonal boron nitride powder, 0.2g fine grain aluminium oxide powder, 15g is poly-
Ammonium phosphate, 1.0g tetramethylol methane and 0.6g ammonium chloride are put into reaction kettle, under the conditions of 60 DEG C of temperature, carry out ultrasound
Scatter operation is shaken, mixture is obtained；
The temperature of mixture is cooled to 37 DEG C by the way of recirculated cooling water, then 85g polyacrylate glue is added
Enter into mixture after cooling, after mixing, obtains just latex；
The pH value of the just latex is adjusted to 7.8 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 water based emulsion based on polyacrylate of embodiment 1.
Embodiment 2
120g polyacrylate glue, 1.5g fine grain copper powder, 1.2g fine grain hexagonal boron nitride powder, 1.3g particulate are provided
Diameter aluminium oxide powder, 20g ammonium polyphosphate, 1.5g tetramethylol methane and 1.3g decabromodiphenylethane；
By 1.5g fine grain copper powder, 1.2g fine grain hexagonal boron nitride powder, 1.3g fine grain aluminium oxide powder, 20g is poly-
Ammonium phosphate, 1.5g tetramethylol methane and 1.3g decabromodiphenylethane are put into reaction kettle, under the conditions of 75 DEG C of temperature, into
Row ultrasonic vibration scatter operation, obtains mixture；
The temperature of mixture is cooled to 42 DEG C by the way of recirculated cooling water, then 120g polyacrylate glue is added
Enter into mixture after cooling, after mixing, obtains just latex；
The pH value of the just latex is adjusted to 9.5 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 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 water based emulsion based on polyacrylate of embodiment 2.
Embodiment 3
100g polyacrylate glue, 0.9g fine grain copper powder, 0.8g fine grain hexagonal boron nitride powder, 0.8g particulate are provided
Diameter aluminium oxide powder, 17g ammonium polyphosphate, 1.2g tetramethylol methane and 0.9g melamine；
By 0.9g fine grain copper powder, 0.8g fine grain hexagonal boron nitride powder, 0.8g fine grain aluminium oxide powder, 17g is poly-
Ammonium phosphate, 1.2g tetramethylol methane and 0.9g melamine are put into reaction kettle, under the conditions of 65 DEG C of temperature, are surpassed
Scatter operation is swung in acoustic shock, obtains mixture；
The temperature of mixture is cooled to 37 DEG C by the way of recirculated cooling water, then 100g polyacrylate glue is added
Enter into mixture after cooling, after mixing, obtains just latex；
The pH value of the just latex is adjusted to 8.5 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 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 water based emulsion based on polyacrylate of embodiment 3.
It is proved through experiment, the water based emulsion based on polyacrylate of 1~embodiment of embodiment 3 all has the prominent feature of environmental protection
Can, the content of volatile organic compounds is lower than 50g/L, meanwhile, also there is good heat dissipation performance and fire protecting performance, after brushing
Film forming after on to equipment is very good, and has good heat dissipation effect for equipment.Especially embodiment 3 based on poly- third
The content of the volatile organic compounds of the water based emulsion of olefin(e) acid ester is minimum, and heat dissipation performance and fire protecting performance 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 water based emulsion based on polyacrylate, which is characterized in that each component including following mass parts:
2. the water based emulsion according to claim 1 based on polyacrylate, which is characterized in that including following mass parts
Each component:
3. the water based emulsion according to claim 2 based on polyacrylate, which is characterized in that including following mass parts
Each component:
4. the water based emulsion according to claim 1 based on polyacrylate, which is characterized in that the fireproof agent is chlorination
At least one of ammonium, triphenyl phosphate, melamine, decabromodiphenylethane and magnesium hydroxide.
5. the water based emulsion according to claim 1 based on polyacrylate, which is characterized in that the fine grain copper powder
Partial size is 20nm~30nm.
6. the water based emulsion according to claim 1 based on polyacrylate, which is characterized in that six side's nitrogen of fine grain
The partial size for changing boron powder is 7nm~13nm.
7. the water based emulsion according to claim 1 based on polyacrylate, which is characterized in that the fine grain three aoxidizes
The partial size of two aluminium powders is 11nm~18nm.
8. a kind of preparation method of the water based emulsion based on polyacrylate, which comprises the following steps:
Polyacrylate glue, fine grain copper powder, fine grain hexagonal boron nitride powder, fine grain aluminium oxide powder, poly- phosphorus are provided
Sour ammonium, tetramethylol methane and fireproof agent, wherein the polyacrylate glue, the fine grain copper powder, the fine grain six
Square boron nitride powder, the fine grain aluminium oxide powder, the ammonium polyphosphate, the tetramethylol methane and the fireproof agent
Mass ratio is (85~120): (0.5~1.5): (0.3~1.2): (0.2~0.3): (15~20): (1.0~1.5): (0.6
~1.3)；
By the fine grain copper powder, the fine grain hexagonal boron nitride powder, the fine grain aluminium oxide powder, the polyphosphoric acid
Ammonium, the tetramethylol methane and the fireproof agent are put into reaction kettle, under the conditions of 60 DEG C~75 DEG C of temperature, are surpassed
Scatter operation is swung in acoustic shock, obtains mixture；
The mixture is subjected to cooling down operation, the polyacrylate glue is added into the mixture after cooling,
After mixing, just latex is obtained；
The just latex is filtered operation, obtains the water based emulsion based on polyacrylate.
9. the preparation method of the water based emulsion according to claim 8 based on polyacrylate, which is characterized in that described to incite somebody to action
The mixture carries out that the temperature of the mixture is cooled to 37 DEG C~42 DEG C in cooling down operation.
10. the preparation method of the water based emulsion according to claim 8 based on polyacrylate, which is characterized in that by institute
Before latex at the beginning of stating is filtered operation, the pH value of the just latex is also adjusted to 7.8~9.5.
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| CN108531097A (en) * | 2018-05-29 | 2018-09-14 | 惠州市浩明科技股份有限公司 | Resisting skin allergy adhesive material and preparation method thereof |
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