CN104788607B - A kind of water-based acrylic resin lotion and application thereof - Google Patents
A kind of water-based acrylic resin lotion and application thereof Download PDFInfo
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Abstract
The invention discloses a kind of water-based acrylic resin lotion and application thereof, water-based acrylic resin lotion is a kind of pre-neutralized water-based acrylic resin lotion, it contains 42% solid, water, solvent and amine.It is to obtain acrylic acid polymer solution by raw material of styrene, butyl methacrylate and acrylic acid, then by N, N dimethyl ethanol amine moieties neutralize, and are finally dispersed into what lotion obtained in water.Be specially designed for liquid epoxies prepare bi-component, normal temperature cure the low water paint of high-performance thermosetting.By the above-mentioned means, the water-based acrylic resin lotion of the present invention has better exterior durability, have 20 to 30 it is small when usage time, good anti-flash rusting, early stage water stain, moist, water, acid and salt fog.
Description
Technical field
The present invention relates to paint field, more particularly to a kind of water-based acrylic resin lotion and application thereof.
Background technology
Coating is a kind of material, and this material can form adherency jail with different construction technologies coated in object surface
Gu, have some strength, continuous solid film.The film common name film so formed, also known as paint film or coating.Coating can rise
To protection, decoration, mark or other specific uses.Epoxy resin is to refer to contain two or more epoxide groups in molecule
Organic compound, in addition to indivedual, their relative molecular mass is not high.The molecular structure of epoxy resin is in strand
It is its feature containing active epoxide group, epoxide group can be located at the end of strand, centre or circlewise structure.Due to
Containing active epoxide group in molecular structure, make them that can crosslink reaction with polytype curing agent and be formed insoluble
The high polymer with three-dimensional net structure.The high-molecular compound containing epoxide group is referred to as asphalt mixtures modified by epoxy resin in all molecular structures
Fat.Epoxy resin can be used as coating, but epoxy resin easily decomposes in light, and can only generally be made as base coating
With, also need to above carry out multilayer brushing, use trouble.And multilayer brushing is time-consuming and laborious, is unfavorable for environmental protection.
The content of the invention
The invention mainly solves the technical problem of providing a kind of water-based acrylic resin lotions and application thereof, which makes
With environmental protection and conveniently.
In order to solve the above technical problems, one aspect of the present invention is：A kind of water-based acrylic resin is provided
Lotion is using styrene, butyl methacrylate and acrylic acid as raw material, acrylic acid is obtained under the action of initiator and auxiliary agent
Polymer solution, then by N, N- dimethylethanolamines neutralize the acrylic acid polymer solution, are finally dispersed into water
What lotion obtained.
In a preferred embodiment of the present invention, the component that the water-based acrylic resin lotion includes for nonvolatile matter,
Water, glycol propyl ether, triethylamine, the solid content weight of the lotion is 43-45%, remaining component is calculated as with mass fraction：Water
43-45%, glycol propyl ether 8-10%, triethylamine 2-3%, wherein solid equivalent are 660 grams/equivalent.
In a preferred embodiment of the present invention, the solid content weight of the water-based acrylic resin lotion is 43%, remaining
Component is calculated as with mass fraction：Water 45%, glycol propyl ether 10%, triethylamine 2%, wherein solid equivalent are 660 grams/equivalent,
The viscosity of the water-based acrylic resin lotion is 15000cp, and density is 1.024 g/ml during solution, and density is during solid
1.104 g/ml, lotion are milky.
In a preferred embodiment of the present invention, the initiator for azo-bis-isobutyl cyanide, di-tert-butyl peroxide or
The two mixture, when the initiator is azo-bis-isobutyl cyanide, reaction temperature is 105-108 DEG C, when the initiator is two
During tert-butyl peroxide, reaction temperature is 127-137 DEG C, and when the initiator is the two mixture, reaction temperature is
110-120℃。
In a preferred embodiment of the present invention, the auxiliary agent is surfactant, and described to obtain acrylate copolymer molten
The reaction dissolvent of liquid is water, the one or more in glycol propyl ether, catalytic amount triethylamine.
A kind of purposes of water-based acrylic resin lotion is provided, the water-based acrylic resin lotion can with epoxy resin or
Amino resins mixing is used as coating.
In a preferred embodiment of the present invention, the water-based acrylic resin lotion is used for normal temperature cure concrete surface
In transparent primary coat, in terms of parts by weight, the first component is the transparent bottom-coating of normal temperature cure concrete surface：Epoxy resin
79 parts, 7.6 parts of propylene glycol monomethyl ether, 90.1 parts of deionized water, the second component is：653 parts of water-based acrylic resin lotion, third
22.7 parts of glycol methyl ether, 12.5 parts of ionized water, first component and second component are stirred evenly and mixed respectively
It uses.
In a preferred embodiment of the present invention, the water-based acrylic resin lotion is used for normal temperature cure concrete surface
During white face applies, in terms of parts by weight, third component is the normal temperature cure concrete surface white painting coating：Epoxy resin
68 parts, 22.2 parts of propylene glycol monomethyl ether, 83.3 parts of deionized water, the 4th component make be formulated when order and weight difference
For：73.3 parts of deionized water, 2.5 parts of polyphosphate sodium, 4.0 parts of BYK037,4,560 4.5 parts of Efka, 250 parts of titanium dioxide,
108 parts of water-based acrylic resin lotion, 2.0 parts of BYK037,22.7 parts of propylene glycol monomethyl ether, water-based acrylic resin lotion
404 parts, the third component and the 4th component are used in mixed way.
In a preferred embodiment of the present invention, the water-based acrylic resin lotion is used to coat polypropylene plastics table
Face, in parts by weight, component is coating：63 parts of water-based acrylic resin lotion, 27 parts of epoxy resin, 14 parts of polysulfur silane, body
Product is than 50 parts of the aqueous hydrogen peroxide acetone soln for 30%.
In a preferred embodiment of the present invention, the water-based acrylic resin lotion is mixed with epoxy resin or amino resins
The one or more in mill base, antifoaming agent, plasticizer are further included in the coating composition of conjunction.
The beneficial effects of the invention are as follows：Water-based acrylic resin lotion of the present invention and application thereof, the lotion is than medium
Tall oil fatty acids alkyd resin has better exterior durability, the usage time with 20 to 30 when small, good anti-
Flash rusting, water stain, moist in early days, water, acid and salt fog, general formulation vehicle can again be dried with epoxy resin cooperation in air
And heat cure, also independent carrier can be also used as in one-component system, priming paint and envelope can be used as with amino resins heat cure
It closes, good exterior durability white face applies, the heat curing coating use with epoxy or amino resins cooperation.
Specific embodiment
The technical solution in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only the part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
Water-based acrylic resin lotion HTW-607 is a kind of pre-neutralized water-based acrylic resin lotion.It contains 42%
Solid, water, solvent and amine.It is specially designed for preparing bi-component, the high-performance of normal temperature cure heat with liquid epoxies
The low water paint of solidity.The solid content weight of the lotion is 43-45%, remaining component is calculated as with mass fraction：Water 43-45%, second
Glycol propyl ether 8-10%, triethylamine 2-3%, wherein solid equivalent are 660 grams/equivalent.The water-based acrylic resin lotion is glued
It spends for 15000cp, density is 1.024 g/ml during solution, and density is 1.104 g/ml during solid, and lotion is milky.
A kind of preparation method of water-based acrylic resin lotion is provided, reaction principle is：
The raw material of use：First portion：Surfactant 351（Suzhou Sheng Jie Special Resins Co., Ltd is homemade）
21.5kg, sodium benzoate 0.073kg, glycol propyl ether 127.5kg（Totally 140 liters）；Second portion：Acrylic acid 43.1kg, benzene second
Alkene 136.5kg, butyl methacrylate 105.2kg；Part III：Vazo 67（Azo-bis-isobutyl cyanide） 6.7kg；4th
Point：Glycol propyl ether 3.3kg（3.8 it rises）；Part V：Di-tert-butyl peroxide 1.5kg；Part VI：Ethylene glycol third
Ether 0.91kg（0.95 liter）；Part VII：Di-tert-butyl peroxide 1.5kg；Part VIII：Glycol propyl ether 0.91kg
（0.95 liter）；Part IX：N, N- dimethylethanolamine 10.4kg；Part X：Deionized water 166.5kg（It is theoretical at this time
Solid content weight %=50）；Tenth part：Deionized water 39.5kg（Theoretical solid content weight %=47 at this time）；12nd
Point：Deionized water 44.9kg（Theoretical solid content weight %=44 at this time）；Tenth three parts：Deionized water 15.4kg（It is final to adjust
Solidating content weight %=43）.
It is including step：
（1）A, first portion's raw material is weighed, sequentially adds reaction kettle；B, second portion raw material is weighed, is sequentially added another
Storage tank notices that acrylic acid addition is critically important, accurate；C, the raw material in storage tank was stirred evenly in 15 minutes；D, extract
The sample of monomer surveys acid value in storage tank, and acid value should be in 110-115.Assuming that the solid content in sample is 100%, sampling amount should be at 2 grams
Left and right.If acid value is less than 110, resamples and test；If acid value is also less than 110, according to formula " acrylic acid=(113-reality
Border acid value) x (total weight of monomer)/353 " is adjusted, and it stirs 15 minutes, then surveys acid value.
（2）Part III raw material is added in storage tank according to the following steps：A, nitrogen is protected 5 minutes or more；
B, Part III raw material is added under stiring；C, nitrogen is closed.
（3）A, mixing speed is 75 revs/min；B, nitrogen protection is opened；C, the material in storage tank is heated to 105-107
℃；D, by the monomer mixture in storage tank, when 3 is small, the interior speed with 1.6 kg/minutes is added in reaction kettle at 107 DEG C.
Heating is removed since when adding in and cools down material.Temperature of charge is kept between 105-107 DEG C.Concrete operations are：Material temperature
During 118 DEG C of degree, stop the addition of monomer, chuck cooling is opened, and during 127 DEG C of temperature of charge, adds in buffer, monomer mixing storage tank
During 30 DEG C of temperature, chuck cooling is opened, during 35 DEG C of monomer mixing tank temperature, addition buffer.In last of monomer addition
Hour may have exothermic phenomenon appearance.Temperature is controlled at 105-107 DEG C with chuck cooling.E, after monomer adds, with the 4th
Part material rinses single storage tank, and washing lotion is back in reaction kettle.Mixture is stirred evenly and maintained the temperature in a kettle
40 minutes between 105-107 DEG C.
（4）A, the component in Part V is added in into catalyst storage tank in above-mentioned heat preservation.B, at the end of heat preservation, 5 points
Above-mentioned initiator is added in reaction kettle in clock.C, single storage tank is rinsed with the component in Part VI, washing lotion is back to reaction kettle
In.
（5）A, 127-132 DEG C is heated the mixture to.During 138 DEG C of temperature of charge, reaction kettle, 146 DEG C of temperature of charge are cooled down
When, add in buffer.B, material at 127-132 DEG C is heated 45 minutes, weighs the component in Part VII.C, will weigh up
Said components added in reaction kettle in 10-15 minutes, and catalyst storage tank is rinsed with the component in Part VIII.Material is in 127-
One hour is kept the temperature at 132 DEG C.D, reaction end test is started, data value is：Solid content %339.6, viscosity O-R, acid value
95.0-100.0 it is tested according to following requirements：58 grams of materials（Assuming that solid content is 70%）, 42 grams of propylene glycol monomethyl ethers, 100 grams it is total
Sample size surveys solid content and acid value in triplicate.E, when solid content and acid value are in required scope, material is cooled to
82-88 DEG C, the addition of dimethylethanolamine is determined with last surveyed acid value.
（6）A, material is cooled down to 82-88 DEG C.It weighs the raw material of Part X.B, calculated with the last acid value in step 5e
The addition of dimethylethanolamine.Temperature of charge will be maintained at 82-88 DEG C before dimethylethanolamine is added in.Part IX raw material
=need the x acid values of weight=0.505 of the dimethylethanolamine added in.The addition of diethanol amine should 9.5-10.5 it
Between.C, nitrogen protection is closed.
（7）A, the Part IX raw material drawn after being calculated in step 6b（Dimethylethanolamine）Add in gravimetric tank.b、
Part IX raw material is added in reaction kettle in ten minutes, keeps 82-88 DEG C of temperature.C, 82-88 DEG C of temperature of charge/15 point are kept
Clock.
（8）Part X raw material is added in the time in reaction kettle with the speed of 1.9 kg/minutes when 1.5 is small.
In this adition process, the big appointment of temperature of charge dropped to 60-66 DEG C in 30-40 minutes.Conversion should be herein
Shi Fasheng.Temperature of charge is kept at 60-66 DEG C.
（9）A, after Part X raw material adds, the tenth a part of raw material of weighing.B, it is the tenth a part of raw material is public with 4
The speed of jin/minute was added in 10 minutes in reaction kettle.C, after the tenth a part of raw material adds, the 12nd part of weighing
Raw material.D, the tenth a part of raw material was added in 10 minutes in reaction kettle with the speed of 4.5 kg/minutes.It begins to cool down
Material is to 38-43 DEG C.
The water-based acrylic resin lotion can be mixed with epoxy resin or amino resins and used as coating.Following HTW-
608 be it is a kind of can self-emulsifying, the liquid epoxies of 100% solid content, originate in Suzhou Sheng Jie Special Resins Co., Ltd.
The water-based acrylic resin lotion is used in the transparent primary coat of normal temperature cure concrete surface, and the normal temperature cure mixes
In terms of parts by weight, the first component is the transparent bottom-coating in solidifying soil surface：79 parts of E51 type epoxy resin HTW-608, propylene glycol
Three is stirred into lotion by 7.6 parts of methyl ether, 90.1 parts of deionized water, and the second component is：Water-based acrylic resin lotion
653 parts of HTW-607,22.7 parts of propylene glycol monomethyl ether, 12.5 parts of ionized water, three is stirred evenly, by first component and
Second component stirs evenly, and then blade coating or roller coat are in concrete surface.Coating layer thickness is dried quickly up to 3-5 microns,
Surface drying when generally 3-4 is small, 24 do solid work when small.
During the water-based acrylic resin lotion applies for normal temperature cure concrete surface white face, the normal temperature cure mixes
In terms of parts by weight, third component is solidifying soil superficial white painting coating：68 parts of E51 type epoxy resin HTW-608, propylene glycol
Each ingredient is mixed into lotion by 22.2 parts of methyl ether, 83.3 parts of deionized water, and the 4th component is：73.3 parts of deionized water is gathered
2.5 parts of sodium phosphate, 4.0 parts of BYK037,4,560 4.5 parts of Efka, 250 parts of titanium dioxide, 108 parts of HTW-607, BYK037
2.0 parts, 22.7 parts of propylene glycol monomethyl ether, 404 parts of HTW-607, deionized water and polyphosphate sodium be dissolved into solution, BYK037,
The high shear of Efka 4560 and titanium dioxide at about 15000 turns per minute, it is carefully mixed according to order listed by the 4th component
Conjunction avoids the increased trend of viscosity.Third component and the 4th component are stirred evenly, it then can be with roller coating or spraying.Coating layer thickness
Up to 20 microns, it is dry quickly, surface drying when general 3-4 is small, 24 do solid work when small.
The water-based acrylic resin lotion is for coating polypropylene plastics surface, and in parts by weight, component is coating：
63 parts of HTW-607,27 parts of HTW-608,14 parts of polysulfur silane, 30%（Volume %）50 parts of aqueous hydrogen peroxide acetone soln.It applies
Material makes：By above-mentioned each ingredient in order in 2500 turns per minute of mixer in uniformly mixed in 3-5 minutes.Polypropylene plastics
Flitch processing：It is cleaned successively with ethyl alcohol, in ethanol 15 minutes ultrasonic cleanings, then clear water is rinsed well, finally uses acetone
It rinses and dries.Coating and curing：Above-mentioned coating is coated on frosting with No. 28 spreading rods, then cures 2 at 110 DEG C
Hour.Detection：Adhesive force test is carried out with ASTM D3359 adhesive tapes.110 DEG C of curings in two hours are immediately tested：70% adhesive force, puts
Put 24 it is small when after test：95% adhesive force.Conclusion：It can see from the result of this experiment, it is can be with painting polypropylene plastics
Surface forms coating.Here, coating can also add in the additives such as colorant, carbon black, talcum powder, colorant etc. as filler.These
Additive will provide the mechanical performances such as hardness and impact resistance, be vital.The amount and other components of hydrogen peroxide are so
It is critically important for curing in one application formula.
When water-based acrylic resin lotion is mixed with similar E51 types liquid epoxies, HTW-607 can form one kind
Coating quick-drying and highlight coating with the high rigidity more excellent than usual two-component epoxy system in 20-30 minutes.Because tool
Standby good sprayability, these coating can spray in the range of viscosities of 2400-2900 centipoises.It is applied immediately after bi-component mixing
Interior when 20-30 is small after cloth, coating has good hardness and gloss.Usage time also is easy to judge due to specific gel.20
After hour boot time, suitable water can be added in keep operation viscosity.
It can be with general-purpose machinery mill base with the coating of epoxy resin and HTW-607 cooperations（Such as 8800# colour paste systems）Compatibility.
Every liter of more than 30 grams mill bases can largely influence its drying property.The mixing of mill base and excellent compatibility.
Performance of the coating so generated under low-temperature bake is also fairly good.The baking of 3 minutes/110C is and then normal
Temperature cures the surface drying that can generate paint film.15 minutes/110C bakings can make hardness of paint film reach pencil H.15 minutes/120C is toasted
Hardness of paint film can be made to reach pencil 3H and with excellent solvent resistance.
When preparing two-component epoxy system with HTW-607, the E51 containing 2- propyl alcohol can be used as component A.After being formulated with this
To coating possess clear lacquer drying property, hardness, gloss, salt spray resistance and humidity, water, acid and exterior durability.If using as
The content of epoxy resin of crosslinking agent suitably reduces, and exterior durability can be more preferable, but other performances can correspondingly decline.On the contrary
Ground, the increase of amount of epoxy can improve other performances, and exterior durability reduces.
In making and coating, the antifoaming agent of similar Colloid 640 can help to defoam.Dosage for 450-500 grams/
100 liters of coating.
HTW-607 can be used as independent resin application in one-component system.But paint film at this time can be very crisp and because have
The crosslinking for having epoxy resin does not possess all properties in addition to exterior durability.Only with epoxy or amino resin crosslinked ability
Obtain the thermohardening lacquer of excellent quality.The addition of plasticizer can improve the flexibility of system.
HTW-607 answers sealed storage in air drying place.HTW-607 finishing coats containing mill base should pass through 5 freezing-thawing tests.
This condition of storage does not interfere with its performance.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright description is made directly or indirectly is used in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (9)
1. a kind of water-based acrylic resin lotion, which is characterized in that be using styrene, butyl methacrylate and acrylic acid as original
Material, obtains acrylic acid polymer solution, then the acrylic acid polymer solution is by N, N- under the action of initiator and auxiliary agent
Dimethylethanolamine neutralizes, and is finally dispersed into what lotion obtained in water, wherein the auxiliary agent is surfactant, described
Reaction dissolvent to acrylic acid polymer solution is glycol propyl ether.
2. water-based acrylic resin lotion according to claim 1, which is characterized in that including component for nonvolatile matter,
Water, glycol propyl ether, triethylamine, the solid content weight of the lotion is 43-45%, remaining component is calculated as with mass fraction：Water
43-45%, glycol propyl ether 8-10%, triethylamine 2-3%, wherein solid equivalent are 660 grams/equivalent.
3. water-based acrylic resin lotion according to claim 2, which is characterized in that the water-based acrylic resin lotion
Solid content weight for 43%, remaining component is calculated as with mass fraction：Water 45%, glycol propyl ether 10%, triethylamine 2%, wherein
Solid equivalent is 660 grams/equivalent, and the viscosity of the water-based acrylic resin lotion is 15000cp, and density is 1.024 during solution
G/ml, density is 1.104 g/ml during solid, and lotion is milky.
4. water-based acrylic resin lotion according to claim 1, which is characterized in that the initiator is two isobutyl of azo
Nitrile, di-tert-butyl peroxide or the two mixture, when the initiator is azodiisobutyronitrile, reaction temperature 105-
108 DEG C, when the initiator is di-tert-butyl peroxide, reaction temperature is 127-137 DEG C, when the initiator is the two
During mixture, reaction temperature is 110-120 DEG C.
5. according to any water-based acrylic resin lotions of claim 1-3, which is characterized in that the water soluble acrylic acid tree
Fat liquor can be mixed with epoxy resin or amino resins and used as coating.
6. water-based acrylic resin lotion according to claim 5, which is characterized in that the water-based acrylic resin lotion
For in the transparent primary coat of normal temperature cure concrete surface, the transparent bottom-coating of normal temperature cure concrete surface to be with parts by weight
Meter, the first component are：79 parts of epoxy resin, 7.6 parts of propylene glycol monomethyl ether, 90.1 parts of deionized water, the second component are：It is aqueous
653 parts of emulsion acrylic resin, 22.7 parts of propylene glycol monomethyl ether, 12.5 parts of deionized water, by first component and described
Two components are stirred evenly and are used in mixed way respectively.
7. water-based acrylic resin lotion according to claim 5, which is characterized in that the water-based acrylic resin lotion
In being applied for normal temperature cure concrete surface white face, the normal temperature cure concrete surface white painting coating is with parts by weight
Meter, third component are：68 parts of epoxy resin, 22.2 parts of propylene glycol monomethyl ether, 83.3 parts of deionized water, the 4th component is making
Order and weight during formula are respectively：73.3 parts of deionized water, 2.5 parts of polyphosphate sodium, 4.0 parts of BYK037, Efka
4560 4.5 parts, 250 parts of titanium dioxide, 108 parts of water-based acrylic resin lotion, 2.0 parts of BYK037, propylene glycol monomethyl ether 22.7
Part, 404 parts of water-based acrylic resin lotion, the third component and the 4th component are used in mixed way.
8. water-based acrylic resin lotion according to claim 5, which is characterized in that the water-based acrylic resin lotion
For coating polypropylene plastics surface, in parts by weight, component is coating：63 parts of water-based acrylic resin lotion, epoxy resin
27 parts, 14 parts of polysulfur silane, volume ratio be 30% 50 parts of aqueous hydrogen peroxide acetone soln.
9. water-based acrylic resin lotion according to claim 5, which is characterized in that the water-based acrylic resin lotion
The one or more in mill base, antifoaming agent, plasticizer are further included in the coating composition mixed with epoxy resin or amino resins.
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