CN106220792A - A kind of preparation method of epoxy resin modified aqueous acrylic emulsion - Google Patents
A kind of preparation method of epoxy resin modified aqueous acrylic emulsion Download PDFInfo
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- CN106220792A CN106220792A CN201610607494.9A CN201610607494A CN106220792A CN 106220792 A CN106220792 A CN 106220792A CN 201610607494 A CN201610607494 A CN 201610607494A CN 106220792 A CN106220792 A CN 106220792A
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- epoxy resin
- weight portions
- acrylic emulsion
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- modified aqueous
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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
- C08F283/00—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G
- C08F283/10—Macromolecular compounds obtained by polymerising monomers on to polymers provided for in subclass C08G on to polymers containing more than one epoxy radical per molecule
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Epoxy Resins (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses the preparation method of a kind of epoxy resin modified aqueous acrylic emulsion, comprise the following steps: epoxy resin, styrene, methyl methacrylate, butyl ester and acrylic acid are put into agitator, stir 30 minutes, mix homogeneously, obtain the first component；In pre-emulsification tank, add water and the first emulsifying agent mix homogeneously, the first component mixed is joined in pre-emulsification tank, stirring pre-emulsification 0.5 ~ 1 hour, obtain second component；Adding water and the second emulsifying agent in a kettle., stirring is warmed up to 80 degree；Put into initiator in a kettle., start to drip the second component that pre-emulsification is good, time for adding 3.5 hours；Drip complete insulation 1.5 hours, regulate ph=7.By the way, the preparation method of epoxy resin modified aqueous acrylic emulsion of the present invention, substantially increase the adhesive force to the base material such as metal, glass, the performance such as water-fast, salt spray resistance improves, more environmentally-friendly.
Description
Technical field
The present invention relates to emulsion production field, particularly relate to the preparation of a kind of epoxy resin modified aqueous acrylic emulsion
Method.
Background technology
The application on industrial coating of the existing aqueous acrylic emulsion there is also bigger performance deficiency, the most water-fast, attached
Put forth effort with performances such as salt spray resistances from requiring the biggest gap, limit its application at industrial circle.
It addition, the most existing epoxy-modified acrylic acid emulsion is mostly physical blending, in performance, storage stability
Face also has bigger defect.The epoxy-acrylate emulsion of partial chemical modification contains a large amount of solvent, is unfavorable for the requirement of environmental protection.
Summary of the invention
The technical problem that present invention mainly solves is to provide the preparation side of a kind of epoxy resin modified aqueous acrylic emulsion
Method, promotes that emulsion is water-fast, adhesive force and salt fog resistance, improves environmental-protecting performance.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide a kind of epoxy resin modification water
The preparation method of property acrylic emulsion, comprises the following steps:
By the epoxy resin of 4.5 ~ 45 weight portions, the styrene of 45 ~ 135 weight portions, the methyl methacrylate of 135 ~ 225 weight portions
The acrylic acid of ester, the butyl ester of 90 ~ 135 weight portions and 4.5 ~ 13.5 weight portions puts into agitator, stirs 30 minutes, and mixing is all
Even, obtain the first component；
Water and the first emulsifying agent mix homogeneously of 5 ~ 10 weight portions of 100 ~ 150 weight portions is added in pre-emulsification tank, will mixing
The first good component joins in pre-emulsification tank, stirring pre-emulsification 0.5 ~ 1 hour, obtains second component；
Adding the water of 400 ~ 450 weight portions and the second emulsifying agent of 3.5 ~ 8.5 weight portions in a kettle., stirring is warmed up to 80
Degree；
Put into the initiator of 2.25 ~ 4.5 weight portions in a kettle., start to drip the second component that pre-emulsification is good, time for adding
3.5 hour；
Drip complete insulation 1.5 hours, regulate ph=7, filter discharging, prepare epoxy resin modified aqueous acrylic emulsion.
In a preferred embodiment of the present invention, described initiator ammonium persulfate.
In a preferred embodiment of the present invention, described first emulsifying agent is alkylphenol polyoxyethylene sulfate, fat
One or more in polyoxyethylenated alcohol sulfate and sodium lauryl sulphate.
In a preferred embodiment of the present invention, described second emulsifying agent is alkylphenol polyoxyethylene.
In a preferred embodiment of the present invention, described epoxy resin is epoxy resin E-20, epoxy resin E-44, epoxy
One or more in resin E-51.
The invention has the beneficial effects as follows: the preparation method of the epoxy resin modified aqueous acrylic emulsion that the present invention points out,
By introducing epoxy resin, acrylic emulsion is carried out graft modification, after polymerization, form the emulsion with composite construction, performance side
Gaining the upper hand complementation in face, substantially increases the adhesive force to the base material such as metal, glass, and the performance such as water-fast, salt spray resistance have also been obtained
The biggest raising, reduces the consumption of coalescents, more environmentally-friendly.
Detailed description of the invention
Technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described enforcement
Example is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, this area is common
All other embodiments that technical staff is obtained under not making creative work premise, broadly fall into the model of present invention protection
Enclose.
The embodiment of the present invention includes:
Embodiment 1:
The preparation method of a kind of epoxy resin modified aqueous acrylic emulsion, comprises the following steps:
By the styrene of epoxy resin E-20,45kg of 4.5kg, the methyl methacrylate of 135kg, the butyl ester of 90kg and
The acrylic acid of 4.5kg puts into agitator, stirs 30 minutes, mix homogeneously, obtains the first component；
The water of 100kg and the alkylphenol polyoxyethylene sulfate mix homogeneously of 5kg is added, by mix in pre-emulsification tank
First component joins in pre-emulsification tank, stirring pre-emulsification 0.5 hour, obtains second component；
Adding the water of 400kg and the alkylphenol polyoxyethylene of 3.5kg in a kettle., stirring is warmed up to 80 degree；
Putting into the Ammonium persulfate. of 2.25kg in a kettle., start to drip the second component that pre-emulsification is good, time for adding 3.5 is little
Time；
Drip complete insulation 1.5 hours, regulate ph=7, filter discharging, prepare epoxy resin modified aqueous acrylic emulsion.
Embodiment 2:
The preparation method of a kind of epoxy resin modified aqueous acrylic emulsion, comprises the following steps:
By the styrene of epoxy resin E-51,135kg of 45kg, the methyl methacrylate of 225kg, the butyl ester of 135kg and
The acrylic acid of 13.5kg puts into agitator, stirs 30 minutes, mix homogeneously, obtains the first component；
The water of 150kg and the sodium lauryl sulphate mix homogeneously of 10kg, first group will mixed is added in pre-emulsification tank
Dividing joins in pre-emulsification tank, stirring pre-emulsification 1 hour, obtains second component；
Adding the water of 450kg and the alkylphenol polyoxyethylene of 8.5kg in a kettle., stirring is warmed up to 80 degree；
Put into the Ammonium persulfate. of 4.5kg in a kettle., start to drip the second component that pre-emulsification is good, time for adding 3.5 hours；
Drip complete insulation 1.5 hours, regulate ph=7, filter discharging, prepare epoxy resin modified aqueous acrylic emulsion.
Embodiment 3:
The preparation method of a kind of epoxy resin modified aqueous acrylic emulsion, comprises the following steps:
By the epoxy resin E-44 of 25kg, the styrene of 90kg, the methyl methacrylate of 180kg, the butyl ester of 110kg and 8kg
Acrylic acid put into agitator, stir 30 minutes, mix homogeneously, obtain the first component；
The water of 125kg and the fatty alcohol polyoxyethylene ether sulfate mix homogeneously of 8kg is added, by mix in pre-emulsification tank
First component joins in pre-emulsification tank, stirring pre-emulsification 0.8 hour, obtains second component；
Adding the water of 400 ~ 450kg and the alkylphenol polyoxyethylene of 3.5 ~ 8.5kg in a kettle., stirring is warmed up to 80 degree；
Put into the Ammonium persulfate. of 4kg in a kettle., start to drip the second component that pre-emulsification is good, time for adding 3.5 hours；
Drip complete insulation 1.5 hours, regulate ph=7, filter discharging, prepare epoxy resin modified aqueous acrylic emulsion.
The present invention uses epoxy resin and acrylate monomer pre-blended, carries out dilute by acrylate to epoxy resin
Releasing viscosity reduction, early stage acrylate monomer substitutes organic solvent to dilute epoxy resin, and polymerization process epoxy resin enters into
In emulsion particle, storing more stable, performance is the most excellent, and later stage film forming procedure epoxy resin can reduce again film-forming temperature,
Reduce the consumption of coalescents, more environmentally-friendly.
In sum, the preparation method of a kind of epoxy resin modified aqueous acrylic emulsion that the present invention points out, more ring
Protect, improve the water-fast of emulsion and salt spray resistance.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology neck
Territory, is the most in like manner included in the scope of patent protection of the present invention.
Claims (5)
1. the preparation method of an epoxy resin modified aqueous acrylic emulsion, it is characterised in that comprise the following steps:
By the epoxy resin of 4.5 ~ 45 weight portions, the styrene of 45 ~ 135 weight portions, the methyl methacrylate of 135 ~ 225 weight portions
The acrylic acid of ester, the butyl ester of 90 ~ 135 weight portions and 4.5 ~ 13.5 weight portions puts into agitator, stirs 30 minutes, and mixing is all
Even, obtain the first component；
Water and the first emulsifying agent mix homogeneously of 5 ~ 10 weight portions of 100 ~ 150 weight portions is added in pre-emulsification tank, will mixing
The first good component joins in pre-emulsification tank, stirring pre-emulsification 0.5 ~ 1 hour, obtains second component；
Adding the water of 400 ~ 450 weight portions and the second emulsifying agent of 3.5 ~ 8.5 weight portions in a kettle., stirring is warmed up to 80
Degree；
Put into the initiator of 2.25 ~ 4.5 weight portions in a kettle., start to drip the second component that pre-emulsification is good, time for adding
3.5 hour；
Drip complete insulation 1.5 hours, regulate ph=7, filter discharging, prepare epoxy resin modified aqueous acrylic emulsion.
The preparation method of epoxy resin modified aqueous acrylic emulsion the most according to claim 1, it is characterised in that described
Initiator ammonium persulfate.
The preparation method of epoxy resin modified aqueous acrylic emulsion the most according to claim 1, it is characterised in that described
First emulsifying agent is in alkylphenol polyoxyethylene sulfate, fatty alcohol polyoxyethylene ether sulfate and sodium lauryl sulphate
One or more.
The preparation method of epoxy resin modified aqueous acrylic emulsion the most according to claim 1, it is characterised in that described
Second emulsifying agent is alkylphenol polyoxyethylene.
The preparation method of epoxy resin modified aqueous acrylic emulsion the most according to claim 1, it is characterised in that described
Epoxy resin is epoxy resin E-20, one or more in epoxy resin E-44, epoxy resin E-51.
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| CN201610607494.9A CN106220792A (en) | 2016-07-29 | 2016-07-29 | A kind of preparation method of epoxy resin modified aqueous acrylic emulsion |
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| CN201610607494.9A CN106220792A (en) | 2016-07-29 | 2016-07-29 | A kind of preparation method of epoxy resin modified aqueous acrylic emulsion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107011770A (en) * | 2017-05-19 | 2017-08-04 | 江苏三木化工股份有限公司 | A kind of self-drying paint aqueous epoxy resins and preparation method and application |
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