CN110092860A - Waterborne epoxy modified acrylic resin and preparation method thereof - Google Patents
Waterborne epoxy modified acrylic resin and preparation method thereof Download PDFInfo
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- CN110092860A CN110092860A CN201910474620.1A CN201910474620A CN110092860A CN 110092860 A CN110092860 A CN 110092860A CN 201910474620 A CN201910474620 A CN 201910474620A CN 110092860 A CN110092860 A CN 110092860A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F212/00—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 an aromatic carbocyclic ring
- C08F212/02—Monomers containing only one unsaturated aliphatic radical
- C08F212/04—Monomers containing only one unsaturated aliphatic radical containing one ring
- C08F212/06—Hydrocarbons
- C08F212/08—Styrene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/05—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media from solid polymers
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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
- C09D125/00—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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated 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
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of 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 an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/08—Copolymers of styrene
- C08J2325/14—Copolymers of styrene with unsaturated esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
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- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of waterborne epoxy modified acrylic resins and preparation method thereof, belong to chemical technology field.By the acrylic resin of bulk polymerization, there is emulsifiability, the waterborne epoxy modified acrylic resin that drying is rapid, mechanical performance, stability and anti-corrosive properties are excellent has been synthesized by emulsion reaction with epoxy resin at low temperature.Waterborne epoxy modified acrylic resin prepared by the present invention is applied in aqueous industrial anticorrosive paint, obtained aqueous industrial anticorrosive paint, have the characteristics that adhesive force is strong, hardness is high, fast drying, impact resistance are excellent, it is solvent-free in the aqueous industrial anti-decaying paint system, VOC free discharge, performance can meet or exceed the performance indicator of the solvent based coating of same type, since solvent usage is low, reaction temperature is low, so, it can achieve environmental protection and energy saving truly, also greatly improve the safety in transport and construction, be suitable for promoting on a large scale.
Description
Technical field
The invention belongs to chemical technology fields, are related to a kind of waterborne epoxy modified acrylic resin, are additionally related to the water
Property epoxy modified acrylic resin is in aqueous industrial preparation method of anticorrosion paint.
Background technique
With developing to low pollutionization for coatings industry and application techniques, water paint increasingly rises.Water paint
Reduce organic solvent to harm and pollution caused by environment, has ensured the health of constructing operation personnel, reduced painting
The synthesis production cost of material makes coatings enterprises produce cleaning more safe and convenient in transport, while being convenient for tool again.Water
Property coating resource-saving, save the energy, it is environmentally protective, as a kind of coating of low VOC emission, there is necessity of research and development, it may have wide
General application prospect.
The common water-base resin of water paint divides from major class: water emulsification type and aqueous dispersion type and water-soluble salt form.Subdivision
Change can be divided into: water soluble acrylic acid, aqueous polyurethane, water alcohol acid, water-base epoxy etc..Acrylic resin is by esters of acrylic acid
With resin made of methyl acrylic ester and other vinyl monomer copolymerizations, by selecting different resin structure, different matching
The resin of the different shapes such as solid-state, solution, latex can be obtained in side, production technology and solvent composition, different polymerization methods, is applicable in
Multiple use.The coating made of it, with it is excellent it is fast light, weatherability, not yellowing, keep high glaze performance for a long time, and have
Have and be grafted, be copolymerized and blending and modifying with other monomers and polymer, obtains excellent water-fast, chemical resistance, anti-pollution
Corrosivity etc. is contaminated, many fields such as coating, adhesive, ink, weaving and leather agent are widely used in.With traditional solvent type
Coating is compared, and water paint has many advantages, such as using safe, is reduced environmental pollution and public hazards thus is had become current development coating
The Main way of industry.Water-based acrylic resin coating is with fastest developing speed in water paint, the most pollution-free coating of kind.
Water-based acrylic resin includes that emulsion acrylic resin, aqueous acrylic resin dispersion and acrylic resin are water-soluble
Liquid.Lotion is mainly vinyl monomer emulsification the synthesizing under the initiation of water-based free radical initiator in water by oiliness, and is set
Rouge aqueous dispersion is then that by free solution polymerization or gradually the different technique such as polymerisation in solution synthesizes.From particle diameter
It sees: the water-soluble liquid particles of emulsion particle ﹥ resin dispersion particle ﹥.
Acrylic emulsion is mainly used for the base-material of emulsion paint, important application is occupied in Building-coating market, it is answered at present
With also constantly expanding；Pure-acrylic emulsion, styrene-acrylic emulsion, silicone acrylic emulsion etc. are generally divided into according to monomer composition.
The synthesis of acrylic acid water dispersoid generallys use solution polymerization process, and solvent is answered miscible with water；In addition, Monomer Formations
In often containing carboxyl, ammonium salt is neutralized into amine, then under strong stirring, water is added and obtains the acrylic acid point of cationic
Granular media such as contains hydroxyl, ether, amide groups on the side chain of synthetic resin, can also increase the water solubility of resin.Developing water
Property acrylate paint can guarantee the coating various characteristics under conditions of, in order to increase solvent resistance, also with such side
Method is modified it with epoxy.Epoxy resin is the polymer containing epoxy group, carries out reacting friendship with curing agent or fatty acid
Connection forms the macromolecular of reticular structure, can the excellent coating resin of processability.Epoxy resin coating chemical resistance is excellent, alkali resistance
It is prominent, there is excellent adhesive force to metal, ceramics, concrete, plastics isopolarity ground.Generally introduce in the synthesis process
Epoxy resin, molecular weight is not too big, and dosage cannot be excessively high, and otherwise resin is not easy to emulsify, and reduces the stability of storage.It is such
Water-base resin is mainly used in the industrial coating of air drying, such as: machinery industry, steel construction industry etc..
Water-soluble acrylic ester coating is made of the copolymer resin of active cross-linking functional group, polyphyly thermosetting property
Coating, in painting outside plus or crosslinked resin is not added, crosslinking forms the paint film of three-dimensional-structure when making the film forming between active function groups.
The water-base resin is mainly used on the paint line with roasting plant.
Acrylic resin is coating one of most important resin, and raw material sources are extensive, and formula flexibly, can pass through various
The collocation of monomer or the modification of functional monomer, and resin various characteristics are assigned, it can almost apply to all types of coating
Among.Water-based acrylic resin can be made different types of water paint, can be made by different polymerizations
VOC content greatly reduces, and the VOC content of the coating system thus prepared is very low, meets the development side of modern coatings industry environmental protection
To with great market prospects.However emulsion acrylic resin poor water resistance, put forth effort difference.It is used on steel, has been easy sudden strain of a muscle
Rust phenomenon, aqueous dispersion, in the synthesis process, the monomer of meeting remained unreacted leads to paint film early stage poor water resistance, thermosetting property
Water-base resin cannot be used due to being limited by execution conditions on large-sized object.These drawbacks require to pass through modification
To solve.Therefore, the waterborne epoxy modified acrylic resin of function admirable is developed, there will be great social environment benefit.
Summary of the invention
The present invention provides a kind of dosage that cosolvent is effectively reduced by the introducing of emulsifying technology, shortens the production cycle
Waterborne epoxy modified acrylic resin of improving production efficiency and its preparation method and application.
The purpose of the present invention is aiming at the problems existing in the prior art, provide a kind of mechanical performance, water solubility, stability
The watersoluble modified acrylic acid resin excellent with antiseptic property.
It is a further object to provide another synthetic methods of the waterborne epoxy modified acrylic resin.
A kind of waterborne epoxy modified acrylic resin is prepared by the raw material of following weight ratio: 15-20 parts of acrylic acid,
20-25 parts of butyl acrylate, 25-30 parts of styrene, 20-25 parts of methyl methacrylate, 1-5 parts of functional monomer, initiator
0.5-1 parts, 30-35 parts of acrylic resin, 10-15 parts of epoxy resin, 10-15 parts of cosolvent, 5-8 parts of neutralizer, water 40-45
Part.
It is prepared by the raw material of following weight ratio: 20 parts of acrylic acid, 25 parts of butyl acrylate, 30 parts of styrene, methyl
25 parts of methyl acrylate, 5 parts of functional monomer, 0.5 part of initiator, 35 parts of acrylic resin, 15 parts of epoxy resin, cosolvent 10
Part, 5 parts of neutralizer, 40 parts of water.
The functional monomer is emulsified monomer.
The initiator is peroxide or azo.
The water is deionized water.
The preparation method of waterborne epoxy modified acrylic resin, comprising the following steps:
A, in blending tank, functional monomer is added and initiator carries out monomer polymerization reactions；
B, hot oil is warming up to 180 DEG C until monomer reaction finishes；
C, unreacted monomer after completion of the reaction, is extracted to cooling tank natural cooling, is then regrouped；
D, by above-mentioned steps polymer resin, by granulation, that solid propenoic acid resin is made is stand-by；
E, acrylic resin, epoxy resin, cosolvent are added in reaction kettle, are warming up to 50~60 DEG C of holding emulsifications under stiring
Then reaction 4 hours is cooled to 30 DEG C hereinafter, neutralizer is added, addition deionized water is diluted, is uniformly mixing to obtain water
Property epoxy modified acrylic resin.
50~60 DEG C of holdings emulsion reaction 2 hours are warming up in the step E under stiring, be then cooled to 30 DEG C with
Under, it is again stirring for down being warming up to 50~60 DEG C of holdings emulsion reaction 2 hours, is then cooled to 30 DEG C or less.
The present invention is using epoxy resin as modified material, by the acrylic acid tree with emulsification function by epoxy resin and third
Olefin(e) acid resin is emulsified, and stability, the waterborne epoxy modified acrylic resin of good mechanical performance are formed, which solves
Big by molecular weight caused by graft copolymer resin, hydrotropy agent content is high, is not easy water-soluble disadvantage, can effectively improve resin
Solid part.The aqueous industrial anticorrosive paint prepared with the resin, has the characteristics that adhesive force is strong, hardness is high, impact is excellent,
Solvent-free in the aqueous industrial anti-decaying paint system, VOC free discharge, performance can meet or exceed the solvent based coating of same type
Performance indicator, since solvent usage is low, reaction temperature is low, and hydrotropy agent content is few in the water-based anticorrosive paint, VOC emission amount pole
Low, performance can meet or exceed the performance indicator of similar solvent based coating, and energy-saving and environmental protection, improve transport, construction
Safety is suitble to large-scale promotion application.
Specific embodiment
A kind of waterborne epoxy modified acrylic resin is prepared by the raw material of following weight ratio: 15-20 parts of acrylic acid,
20-25 parts of butyl acrylate, 25-30 parts of styrene, 20-25 parts of methyl methacrylate, 1-5 parts of functional monomer, initiator
0.5-1 parts, 30-35 parts of acrylic resin, 10-15 parts of epoxy resin, 10-15 parts of cosolvent, 5-8 parts of neutralizer, water 40-45
Part.
Preferably, it is prepared by the raw material of following weight ratio: 20 parts of acrylic acid, 25 parts of butyl acrylate, styrene 30
Part, 25 parts of methyl methacrylate, 5 parts of functional monomer, 0.5 part of initiator, 35 parts of acrylic resin, 15 parts of epoxy resin,
10 parts of cosolvent, 5 parts of neutralizer, 40 parts of water.Cosolvent usage amount is effectively reduced compared to above-mentioned formula.
The functional monomer is emulsified monomer.
The initiator is peroxide or azo.
The water is deionized water.
The preparation method of waterborne epoxy modified acrylic resin, comprising the following steps:
A, in blending tank, functional monomer is added and initiator carries out monomer polymerization reactions；
B, hot oil is warming up to 180 DEG C until monomer reaction finishes；
C, unreacted monomer after completion of the reaction, is extracted to cooling tank natural cooling, is then regrouped；
D, by above-mentioned steps polymer resin, by granulation, that solid propenoic acid resin is made is stand-by；
E, acrylic resin, epoxy resin, cosolvent are added in reaction kettle, are warming up to 50~60 DEG C of holding emulsifications under stiring
Then reaction 4 hours is cooled to 30 DEG C hereinafter, neutralizer is added, addition deionized water is diluted, is uniformly mixing to obtain water
Property epoxy modified acrylic resin.
50~60 DEG C of holdings emulsion reaction 2 hours are warming up in the step E under stiring, be then cooled to 30 DEG C with
Under, it is again stirring for down being warming up to 50~60 DEG C of holdings emulsion reaction 2 hours, is then cooled to 30 DEG C or less.Heating-cooling-
Heating treatment makes material mixing more uniform, and adhesive force is strong, hardness is high, impact performance boost is more significant.
The waterborne epoxy modified acrylic resin is used for aqueous industrial anticorrosive paint.
The application method of waterborne epoxy modified acrylic resin, comprising the following steps: waterborne epoxy modified acrylic resin
It is coated uniformly on iron plate surface, dried coating film time 30min toasts 40min in 80-90 DEG C of baking oven.
The waterborne epoxy modified acrylic resin is coated uniformly on tinplate surface, dried coating film time 30min,
20min is toasted at 90 DEG C of baking oven, and 10min is toasted at 85 DEG C, toasts 10min at 80 DEG C.Thickness of dry film is 25um, and hardness is
0.41, adhesive force is 1 grade；Impact strength 50Kg/cm2, flexibility 1mm, resistance to salt water 240h is not blistering, does not crack, and does not fall off.
One, the application of waterborne epoxy modified acrylic resin of the present invention
Waterborne epoxy modified acrylic resin of the present invention is used for aqueous industrial anticorrosive paint.Water-base epoxy prepared by the present invention is changed
Property acrylic resin 100g, after being neutralized with 10g ammonium hydroxide, is divided into quarter, is separately added into 20ml, 40ml, 60ml, 80ml
Water be stirred dilution, it has been observed that: every part of resin without layering, without precipitation.It follows that this is waterborne epoxy modified
The water solubility of acrylic resin is good.
By waterborne epoxy modified acrylic resin prepared by the present invention, stored up 15 days by 50 DEG C of baking ovens, it has been observed that: it should
Resin is precipitated without precipitating, object, without layering, apparent transparent.It follows that the stable storing of the waterborne epoxy modified acrylic resin
Property is good.
Waterborne epoxy modified acrylic resin prepared by the present invention is applied in aqueous industrial anticorrosive paint, this is aqueous
Epoxy modified acrylic resin and organic amine neutralize, aqueous industrial anticorrosive paint obtained, are coated in standard using spraying method
Tinplate on, under the conditions of 70~80 DEG C toast 30~40min, iron plate surface formed a layer thickness be 20~30um paint
Film takes out and places 20~30min of constant temperature, carries out properties detection, and the performance of the paint film is as follows: coating color and appearance: pressing
It is detected according to the regulation of GB/T9761-2008, meets the requirement of template, richness is good.Adhesive force: according to GB/T1720-
1988 regulation, is detected using cross-hatching, and testing result is at 2 grades or more.Hardness: it is provided according to GB/T1730-2007
It is detected, is detected based on standard method of test progress pendulum-rocker hardness, the result hardness of detection is more than or equal to 0.4, and performance reaches
Testing index requirement.Flexibility: being detected according to the regulation of GB/T1731-2007, and the flexibility of testing result is less than or equal to
1mm, performance reach the requirement of Testing index.Impact strength: it is detected according to the regulation of GB/T1732-2007, testing result
Impact strength be equal to 50Kg/cm2, performance reaches the requirement of Testing index.Salt fog resistance: according to the rule of GB/T17371-1991
Surely it is detected, testing result salt spray resistance is more than or equal to 240h, and paint film is unchanged.
Embodiment 1
A kind of waterborne epoxy modified acrylic resin is prepared by the raw material of following weight ratio: 15 parts of acrylic acid, acrylic acid fourth
20 parts of ester, 25 parts of styrene, 20 parts of methyl methacrylate, 1 part of functional monomer, 0.5 part of initiator, acrylic resin 30
Part, 10 parts of epoxy resin, 10 parts of cosolvent, 5 parts of neutralizer, 40 parts of water.
The epoxy modified acrylic resin of example preparation, color: 7# (Fe-Co), viscosity: -4# glasss of 120s(painting)；Gu
Body part: 45.2%.
By the aqueous industrial anticorrosive paint using the method for spraying, it is coated uniformly on the surface of the tinplate of standard, is applied
Film surface drying is 30min, and 80 DEG C of baking ovens place 40min, and thickness of dry film 22um, hardness 0.41, adhesive force is 1 grade；Impact is strong
50Kg/cm2 is spent, flexibility 1mm, resistance to salt water 240h is not blistering, does not crack, and does not fall off.
Embodiment 2
20 parts of acrylic acid, 30 parts of styrene, 25 parts of methyl methacrylate, 5 parts of functional monomer, draws 25 parts of butyl acrylate
Send out 0.5 part of agent, 35 parts of acrylic resin, 15 parts of epoxy resin, 10 parts of cosolvent, 5 parts of neutralizer, 40 parts of water.
By the aqueous industrial anticorrosive paint using the method for spraying, it is coated uniformly on the surface of the tinplate of standard, is applied
Film surface drying is 30min, and 80 DEG C of baking ovens place 40min, and thickness of dry film 25um, hardness 0.41, adhesive force is 1 grade；Impact is strong
50Kg/cm2 is spent, flexibility 1mm, resistance to salt water 240h is not blistering, does not crack, and does not fall off.
Embodiment 3
A kind of waterborne epoxy modified acrylic resin is prepared by the raw material of following weight ratio: 20 parts of acrylic acid, acrylic acid fourth
25 parts of ester, 30 parts of styrene, 25 parts of methyl methacrylate, 5 parts of functional monomer, 1 part of initiator, 35 parts of acrylic resin,
15 parts of epoxy resin, 15 parts of cosolvent, 8 parts of neutralizer, 45 parts of water.
By the aqueous industrial anticorrosive paint using the method for spraying, it is coated uniformly on the surface of the tinplate of standard, is applied
Film surface drying is 30min, and 90 DEG C of baking ovens place 40min, and thickness of dry film 24um, hardness 0.41, adhesive force is 1 grade；Impact is strong
50Kg/cm2 is spent, flexibility 1mm, resistance to salt water 240h is not blistering, does not crack, and does not fall off.
Preferred embodiment only of the invention in summary.It should be understood that coming for any person skilled in the art
It says, under technical inspiration provided by the present invention, other equivalent modifications and improvement can also be made, also should be regarded as skill of the invention
Art range.
Claims (7)
1. a kind of waterborne epoxy modified acrylic resin, it is characterised in that be prepared by the raw material of following weight ratio: acrylic acid
15-20 parts, 20-25 parts of butyl acrylate, 25-30 parts of styrene, 20-25 parts of methyl methacrylate, functional monomer 1-5
Part, 0.5-1 parts of initiator, 30-35 parts of acrylic resin, 10-15 parts of epoxy resin, 10-15 parts of cosolvent, 5-8 parts of neutralizer,
40-45 parts of water.
2. a kind of waterborne epoxy modified acrylic resin according to claim 1, it is characterised in that by following weight ratio
Raw material is prepared: 20 parts of acrylic acid, 25 parts of butyl acrylate, 30 parts of styrene, 25 parts of methyl methacrylate, functional list
5 parts of body, 0.5 part of initiator, 35 parts of acrylic resin, 15 parts of epoxy resin, 10 parts of cosolvent, 5 parts of neutralizer, 40 parts of water.
3. waterborne epoxy modified acrylic resin according to claim 1, it is characterised in that: the functional monomer is emulsification
Monomer.
4. waterborne epoxy modified acrylic resin according to claim 1, it is characterised in that: the initiator is peroxide
Or azo.
5. waterborne epoxy modified acrylic resin according to claim 1, it is characterised in that: the water is deionized water.
6. the preparation method of waterborne epoxy modified acrylic resin according to claim 1, it is characterised in that including following step
It is rapid:
A, in blending tank, functional monomer is added and initiator carries out monomer polymerization reactions；
B, hot oil is warming up to 180 DEG C until monomer reaction finishes；
C, unreacted monomer after completion of the reaction, is extracted to cooling tank natural cooling, is then regrouped；
D, by above-mentioned steps polymer resin, by granulation, that solid propenoic acid resin is made is stand-by；
E, acrylic resin, epoxy resin, cosolvent are added in reaction kettle, are warming up to 50~60 DEG C of holding emulsifications under stiring
Then reaction 4 hours is cooled to 30 DEG C hereinafter, neutralizer is added, addition deionized water is diluted, is uniformly mixing to obtain water
Property epoxy modified acrylic resin.
7. the preparation method of waterborne epoxy modified acrylic resin according to claim 6, it is characterised in that in the step E
It is warming up to 50~60 DEG C of holdings emulsion reaction 2 hours under stiring, is then cooled to 30 DEG C hereinafter, being again stirring for down being warming up to 50
~60 DEG C holding emulsion reaction 2 hours, be then cooled to 30 DEG C or less.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110317026A (en) * | 2019-08-16 | 2019-10-11 | 佛山市德堡建材有限公司 | A kind of glue for tile |
| CN116023859A (en) * | 2023-03-02 | 2023-04-28 | 广州翔铭环保新材料有限公司 | Preparation method of water-based steel structure paint for protecting steel materials |
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| CN108752514A (en) * | 2018-05-05 | 2018-11-06 | 长沙市原鹏化工科技有限公司 | A kind of epoxy-modified acrylic acid lotion and preparation method thereof |
| CN109293852A (en) * | 2018-09-19 | 2019-02-01 | 江苏三木化工股份有限公司 | A kind of high glaze thermosetting aqueous epoxy modified acrylic resin and preparation method |
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Application publication date: 20190806 |