CN109608954A - A kind of preparation method of the water soluble acrylic acid amino baking varnish of coating plated item - Google Patents
A kind of preparation method of the water soluble acrylic acid amino baking varnish of coating plated item Download PDFInfo
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- CN109608954A CN109608954A CN201811397655.1A CN201811397655A CN109608954A CN 109608954 A CN109608954 A CN 109608954A CN 201811397655 A CN201811397655 A CN 201811397655A CN 109608954 A CN109608954 A CN 109608954A
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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
- C09D131/00—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 acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
- C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09D131/04—Homopolymers or copolymers of vinyl acetate
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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
- C08F218/00—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 acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
Abstract
The present invention relates to a kind of preparation methods of the water soluble acrylic acid amino baking varnish of coating plated item, the following steps are included: first synthesizing a kind of water based acrylic resin WR, step are as follows: the monomer for participating in polymerization and initiator is added to enter dropping tank, it is uniformly mixed, solubilizer enters reaction kettle, stirring is opened, nitrogen is passed through, is heated to reaction temperature, the mixture of dropping tank is added dropwise, it drips off within a certain period of time, heat preservation a period of time, adds initiator, it is dripped off in certain time, heat preservation a period of time, cool down, discharging.Water based acrylic resin WR investment with paint cylinder, neutralizer and water is added, high-speed stirred is for a period of time, adjust pH value, add amino resins, defoaming agent, levelling agent according still further to certain ratio, wetting agent, high-speed stirred for a period of time, adds solvent and water, high-speed stirred is for a period of time, after sample detection fineness and viscosity are qualified, packaging.
Description
Technical field
The present invention relates to a kind of preparation methods of the water soluble acrylic acid amino baking varnish of coating plated item, belong to macromolecule
The synthesis technical field of organic compound.
Technical background
Water paint advantage: first, with water as solvent, saves vast resources；Fire risk when eliminating construction；It reduces
To atmosphere pollution；Only with a small amount of hypotoxicity alcohol ethers organic solvent, operating environmental condition is improved.General water paint has
Between 15%~15%, the second water paint can be coated directly in wet structure and wet environment and be applied solvent (accounting for coating)
Work；Good to material surface adaptability, coating adhesion is strong.Third coating tool can wash by water, and greatly reduce cleaning solvent
Consumption.So the dosage of water paint is increasing, wherein the most outstanding is water soluble acrylic acid amino-stoving varnish, dosage is increasingly
Greatly, it is mainly used for coating coiled material, metal bucket, electric vehicle, motorcycle, automobile, mechanical equipment, stainless steel door, aluminium alloy door and window, steel
Structure component etc..
Existing market requires the water-based stoving paint salt spray resistance of coating plated item good, due to plated item smoother, causes
Paint film and plated item surface adhesion force are bad, and salt spray resistance is bad, we synthesize high hydroxyl value by a large amount of experiment discovery
Water-based acrylic resin improves ratio of the water-compatible amino resin in paint, can increase the crosslinking of acrylic resin and amino resins
Density improves salt fog resistance.
Summary of the invention
A kind of preparation method of the invention water soluble acrylic acid amino baking varnish for being related to coating plated item, packet
Include following steps:
(1) a kind of water based acrylic resin WR, step are first synthesized are as follows: the monomer for participating in polymerization and initiator is added to enter to be added dropwise
Tank is uniformly mixed, and solubilizer enters reaction kettle, is opened stirring, is passed through nitrogen, is heated to reaction temperature, and the mixed of dropping tank is added dropwise
Object is closed, is dripped off within a certain period of time, heat preservation a period of time, initiator is added, is dripped off in certain time, heat preservation a period of time, drop
Temperature, discharging.
(2) neutralizer and a small amount of water is added with paint cylinder in water based acrylic resin WR investment, adjusts pH value, high speed
Stirring a period of time.
(3) add amino resins, defoaming agent, levelling agent, wetting agent, dispersion respectively under high velocity agitation according to a certain percentage
Agent enters with paint cylinder, and high-speed stirred for a period of time, adds solvent and water, high-speed stirred is for a period of time.
(4) after sample detection fineness and viscosity are qualified, packaging.
Preferably, the mass ratio of the water based acrylic resin WR in the step (3) and Amino resin
Are as follows: 1.6-2.2:1(100% solid content).
Specific embodiment
Water soluble acrylic acid amino below with reference to embodiment to a kind of paint thickness of dry film of the invention up to 60 microns toasts clearly
The preparation method of paint is further described.It is understood that specific embodiment described herein is used only for explaining phase
It closes and invents, rather than the restriction to the invention.
Embodiment 1
(1) a kind of water based acrylic resin WR, step are first synthesized are as follows: first 4 grams of acrylic acid, 4 grams of methacrylic acids, 40 grams
Vinyl acetate, 20 grams of hydroxypropyl acrylates, 15 grams of styrene, 10 grams of butyl acrylates, 8 grams of dibenzoyl peroxides, which are added, to be added dropwise
Tank is uniformly mixed.Add 15 grams of isobutanols and 35 grams enter ethylene glycol monobutyl ether and enter reaction kettle, open stirring, be passed through nitrogen, heats
To 90-93 degree, the mixture of dropping tank is added dropwise, drips off within 4 hours, keeps the temperature 3 hours in 90-93 degree, adds 2 grams of diphenyl peroxide first
Acyl keeps the temperature 5 hours in 90-93 degree, cools down, discharging.
(2) 5 grams of dimethylethanolamines and 10 grams of water are added with paint cylinder in 60 grams of water based acrylic resin WR investments,
Adjustment pH value be 8.2-8.5, high-speed stirred 30 minutes.
(3) plus 25 grams of solid contents be 80% 325,0.2 gram of amino resins cyanogen spy, 270,0.2 gram of Digao Digao 902W, 0.2
Gram Digao 450 enters with paint cylinder, high-speed stirred half an hour, adds 90 grams of water, 6 grams of diethylene glycol monobutyl ethers, and high-speed stirred half is small
When.
(4) for sample detection fineness less than 50 microns, water use regulation viscosity is packaging behind centipoise/25 degree 2000-2300.
Embodiment 2
(1) a kind of water based acrylic resin WR, step are first synthesized are as follows: first 5 grams of acrylic acid, 3 grams of methacrylic acids, 45 grams
Vinyl acetate, 5 grams of methyl methacrylates, 15 grams of hydroxypropyl acrylates, 17 grams of butyl acrylates, 8 grams of dibenzoyl peroxides
Dropping tank is added, is uniformly mixed.Add 15 grams of isobutanols and 35 grams enter ethylene glycol monobutyl ether and enter reaction kettle, opens stirring, be passed through
Nitrogen is heated to 85-88 degree, and the mixture of dropping tank is added dropwise, and drips off within 3 hours, keeps the temperature 2 hours in 85-88 degree, adds 1.5 grams
Dibenzoyl peroxide keeps the temperature 1 hour in 85-88 degree, is uniformly being warming up to 95-98 heat preservation cooling in 2 hours with 1 hour, out
Material.
(2) 65 grams of water based acrylic resin WR investments are added 5 grams of triethylamines and 10 grams of water, adjust PH with paint cylinder
Being worth is 7.6-7.8, high-speed stirred 30 minutes.
(3) plus 26 grams of solid contents be 80% 325,0.2 gram of amino resins cyanogen spy, 270,0.2 gram of Digao Digao 902W, 0.2
Gram Digao 450 enters with paint cylinder, high-speed stirred half an hour, adds 85 grams of water, 8 grams of diethylene glycol monobutyl ethers, and high-speed stirred half is small
When.
(4) for sample detection fineness less than 50 microns, water use regulation viscosity is packaging behind centipoise/25 degree 1800-2000.
Embodiment 3
(1) a kind of water based acrylic resin WR, step are first synthesized are as follows: first 6 grams of acrylic acid, 30 grams of vinyl acetates, 25 grams
Styrene, 20 grams of hydroxypropyl acrylates, 15 grams of butyl acrylates, 8 grams of dibenzoyl peroxides are added dropping tank, are stirred
It is even.Add 20 butanol and 30 grams enter the tertiary butyl ether of ethylene glycol list and enter reaction kettle, open stirring, be passed through nitrogen, be heated to 83-86 degree, is added dropwise
The mixture of dropping tank drips off for 3 hours, keeps the temperature 2 hours in 83-86 degree, 1 gram of dibenzoyl peroxide is added, in 83-86 degree
Heat preservation 5 hours cools down, discharging.
(2) 70 grams of water based acrylic resin WR-006 investments are added 5 grams of tri-n-butylamines and 10 grams of water, adjusted with paint cylinder
Whole pH value be 8.3-8.8, high-speed stirred 30 minutes.
(3) plus 28 grams of solid contents be 80% 325,0.2 gram of amino resins cyanogen spy, 270,0.2 gram of Digao Digao 902W, 0.2
Gram Digao 450 enters with paint cylinder, high-speed stirred half an hour, adds 80 grams of water, 9 grams of diethylene glycol monobutyl ethers, and high-speed stirred half is small
When.
(4) for sample detection fineness less than 50 microns, water use regulation viscosity is packaging behind centipoise/25 degree 2000-2300.
Embodiment 4
(1) a kind of water based acrylic resin WR, step are first synthesized are as follows: first 8 grams of methacrylic acids, 50 grams of vinyl acetates,
Dropping tank is added in 20 grams of hydroxypropyl acrylates, 18 grams of styrene, 8 grams of butyl acrylates, 10 grams of dibenzoyl peroxides, and stirring is mixed
It closes uniform.Add 15 grams of butanol and 35 grams enter glycol monoethyl ether and enter reaction kettle, opens stirring, be passed through nitrogen, be heated to 80-83 degree,
The mixture of dropping tank is added dropwise, drips off within 2 hours, keeps the temperature 2 hours in 80-83 degree, adds 1.5 grams of dibenzoyl peroxides,
80-83 degree keeps the temperature 2 hours, is equably warming up to 92-95 degree with 1 hour, vacuum cup hour cools down, discharging.
(2) 5 grams of dimethylethanolamines and 10 grams of water are added with paint cylinder in 60 grams of water based acrylic resin WR investments,
Adjustment pH value be 7.5-7.8, high-speed stirred 30 minutes.
(3) plus 25 grams of solid contents be 80% 325,0.2 gram of amino resins cyanogen spy, 270,0.2 gram of Digao Digao 902W, 0.2
Gram Digao 450 enters with paint cylinder, high-speed stirred half an hour, adds 85 grams of water, 8 grams of diethylene glycol monobutyl ethers, and high-speed stirred half is small
When.
(4) for sample detection fineness less than 50 microns, water use regulation viscosity is packaging behind centipoise/25 degree 2000-2300.
The performance of 4 example baking vanish (film thickness is 30 microns)
| Baking vanish number | Example 1 | Example 2 | Example 3 | Example 4 | |
| Hardness | 2H | 2H | 2H | 2H | |
| Gloss (60 degree of glossometers | 98-101 | 95-97 | 97-98 | 96-98 | |
| Richness | It is good | It is good | It is good | It is good | |
| Boiling 3 hours | It is not blistering, it does not fall off | It is not blistering, it does not fall off | It is not blistering, it does not fall off | It is not blistering, it does not fall off | |
| Salt spray resistance 400 hours | Pass through | Pass through | Pass through | Pass through | |
| UV machine shines 400 hours | Pass through | Pass through | Pass through | Pass through | |
| Adhesive force (baige method) | Pass through | Pass through | Pass through | Pass through | |
| Recoil hits 50 centimetres kilograms | Pass through | Pass through | Pass through | Pass through | |
| Flexibility | 0 grade | 0 grade | 0 grade | 0 grade |
Although the present invention has described it in detail and cited embodiments, but for those of ordinary skill in the art, it is clear that can
With various schemes, modification and the change made as specified above, should be construed as being included within the scope of the claims.
Claims (3)
1. the present invention relates to a kind of preparation method of the water soluble acrylic acid amino baking varnish of coating plated item, including following step
It is rapid:
(1) a kind of water based acrylic resin WR, step are first synthesized are as follows: the monomer for participating in polymerization and initiator is added to enter to be added dropwise
Tank is uniformly mixed, and solubilizer enters reaction kettle, is opened stirring, is passed through nitrogen, is heated to reaction temperature, and the mixed of dropping tank is added dropwise
Object is closed, is dripped off within a certain period of time, heat preservation a period of time, initiator is added, is dripped off in certain time, heat preservation a period of time, drop
Temperature, discharging；
(2) neutralizer and a small amount of water is added with paint cylinder in water based acrylic resin WR investment, adjusts pH value, high-speed stirred
For a period of time；
(3) adding amino resins respectively under high velocity agitation according to a certain percentage, defoaming agent, levelling agent, wetting agent, which enters to match, paints cylinder,
High-speed stirred for a period of time, adds solvent and water, high-speed stirred is for a period of time；
(4) after sample detection fineness and viscosity are qualified, packaging.
2. according to preparation method described in right 1, which is characterized in that the water based acrylic resin WR in the step (3)
With the mass ratio of Amino resin are as follows: 1.8-2.5:1(100% solid content).
3. a kind of water soluble acrylic acid for coating plated item that preparation method described in claim 1 to 2 any one is prepared
Amino baking varnish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811397655.1A CN109608954A (en) | 2018-11-22 | 2018-11-22 | A kind of preparation method of the water soluble acrylic acid amino baking varnish of coating plated item |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811397655.1A CN109608954A (en) | 2018-11-22 | 2018-11-22 | A kind of preparation method of the water soluble acrylic acid amino baking varnish of coating plated item |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109608954A true CN109608954A (en) | 2019-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811397655.1A Withdrawn CN109608954A (en) | 2018-11-22 | 2018-11-22 | A kind of preparation method of the water soluble acrylic acid amino baking varnish of coating plated item |
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| CN (1) | CN109608954A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621461A (en) * | 2004-10-20 | 2005-06-01 | 太原理工大学 | Water soluble thermo-crosslinked silicon steel sheet paint |
| CN101914185A (en) * | 2010-09-08 | 2010-12-15 | 廊坊金汇利工业涂料有限公司 | Hydroxy acrylic resin aqueous dispersion and water-based coating prepared therefrom |
| CN102190933A (en) * | 2010-03-05 | 2011-09-21 | 立邦涂料（中国）有限公司 | Acrylic-amino type coating varnish composition for automobiles, varnish and application thereof |
| CN106543840A (en) * | 2016-11-04 | 2017-03-29 | 广东海顺新材料科技有限公司 | Water based acrylic resin and water soluble acrylic acid amino-stoving varnish and preparation method and metal works beneficial to deep processing |
-
2018
- 2018-11-22 CN CN201811397655.1A patent/CN109608954A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1621461A (en) * | 2004-10-20 | 2005-06-01 | 太原理工大学 | Water soluble thermo-crosslinked silicon steel sheet paint |
| CN102190933A (en) * | 2010-03-05 | 2011-09-21 | 立邦涂料（中国）有限公司 | Acrylic-amino type coating varnish composition for automobiles, varnish and application thereof |
| CN101914185A (en) * | 2010-09-08 | 2010-12-15 | 廊坊金汇利工业涂料有限公司 | Hydroxy acrylic resin aqueous dispersion and water-based coating prepared therefrom |
| CN106543840A (en) * | 2016-11-04 | 2017-03-29 | 广东海顺新材料科技有限公司 | Water based acrylic resin and water soluble acrylic acid amino-stoving varnish and preparation method and metal works beneficial to deep processing |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190412 |
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| WW01 | Invention patent application withdrawn after publication |