CN109852185A - A kind of preparation method of the aqueous amino acrylic baking purple paint of coating stainless steel - Google Patents
A kind of preparation method of the aqueous amino acrylic baking purple paint of coating stainless steel Download PDFInfo
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- CN109852185A CN109852185A CN201910082131.1A CN201910082131A CN109852185A CN 109852185 A CN109852185 A CN 109852185A CN 201910082131 A CN201910082131 A CN 201910082131A CN 109852185 A CN109852185 A CN 109852185A
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Abstract
The present invention relates to a kind of preparation methods of the aqueous amino acrylic baking purple paint of coating stainless steel, the water soluble acrylic acid amino-stoving varnish that the present invention prepares uses homemade water-based acrylic resin, hardness excellent to parts of stainless steel adhesive force, impact, the performances such as flexibility are also excellent.The following steps are included: first synthesizing a kind of water based acrylic resin WR. step are as follows: add the monomer for participating in polymerization and initiator to enter dropping tank, be 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, pH value is adjusted, adds amino resins, defoaming agent respectively under high velocity agitation according still further to certain ratio, levelling agent, wetting agent, dispersing agent and aqueous purple are starched into paint cylinder, and high-speed stirred is for a period of time, add solvent and water, high-speed stirred for a period of time, after sample detection fineness and viscosity qualification, is packed.
Description
Technical field
The present invention relates to a kind of preparation methods of the aqueous amino acrylic baking purple paint of coating stainless steel, belong to high score
The synthesis technical field of sub- 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, automotive oil tank, mechanical equipment, parts of stainless steel, aluminium conjunction
Jinmen and window, plastic components and steel structure component etc..
The water resistance and salt fog resistance of water soluble acrylic acid amino-stoving varnish are far superior to water alcohol acid amino-stoving varnish and aqueous poly-
Ester amino-stoving varnish, adhesive force is not so good when water soluble acrylic acid amino-stoving varnish coating parts of stainless steel currently on the market, and the present invention matches
The water soluble acrylic acid amino-stoving varnish of system uses homemade water-based acrylic resin, hardness excellent to parts of stainless steel adhesive force, punching
Hitting property, the performances such as flexibility are also excellent.
The present invention relates to a kind of preparation methods of the aqueous amino acrylic baking green paint of coating stainless steel, 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
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 and aqueous blue mill base enter 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 solid content of water based acrylic resin WR is 30% to 35% in the step (1), and viscosity is
Centipoise/25 degree 150-300 (rotational viscometer), hydroxyl value are 40-50mgKOH/g(100% solid content), acid value 55-
65mgKOH/g(100% solid content).
Preferably, water soluble green slurry is to be manufactured with permanent violet serial pigment in the step (3).
Specific embodiment
Preparation below with reference to embodiment to the aqueous amino acrylic baking purple paint of a kind of coating stainless steel of the invention
Method is further described.It is understood that specific embodiment described herein is used only for explaining related invention, and
The non-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, 2 grams of methacrylic acids, 16 grams
Hydroxypropyl acrylate, 13 grams of styrene, 15 grams of butyl acrylates, 40 grams of butyl methacrylates, 8 grams of dibenzoyl peroxides add
Enter dropping tank, is uniformly mixed.Add 220 grams of isobutanols to enter reaction kettle, open stirring, be passed through nitrogen, be heated to 90-93 degree, drips
Add the mixture of dropping tank, drip off within 4 hours, keeps the temperature 3 hours in 90-93 degree, 2 grams of dibenzoyl peroxides are added, in 90-93
Degree heat preservation 5 hours, cools down, discharging.
(2) 153 grams of water based acrylic resin WR investments are opened high-speed stirred, 5 grams of dimethyl ethanols is added with paint cylinder
Amine and 1 gram of water, adjustment pH value are 8.5-8.8, are continued high-speed stirred 30 minutes.
(3) plus 13 grams of solid contents be 80% 325,0.3 gram of amino resins cyanogen spy, 270,0.4 gram of Digao Digao 902W, 0.2
Gram 450,0.3 gram of dispersing agent of Digao and 25 grams of aqueous purples are starched into paint cylinder, and high-speed stirred 0.5 hour, then plus 2 grams of DBE and 30
Gram water enters with paint cylinder, 1 hour of high-speed stirred
(4) for sample detection fineness less than 50 microns, water use regulation viscosity is packaging behind centipoise/25 degree 600-800.
Embodiment 2
(1) a kind of water based acrylic resin WR, step are first synthesized are as follows: first 7 grams of acrylic acid, 12 grams of vinyl acetates, 21 grams
Methyl methacrylate, 18 grams of hydroxypropyl acrylates, 17 grams of butyl acrylates, 23 grams of butyl methacrylates, 6 grams of benzoyl peroxides
Dropping tank is added in penta butyl ester of formic acid, is uniformly mixed.Add 70 grams of isobutanols and 150 grams enter ethylene glycol monobutyl ether and enter reaction kettle,
Stirring is opened, nitrogen is passed through, is heated to 110-115 degree, the mixture of dropping tank is added dropwise, is dripped off within 6 hours, keeps the temperature 2 in 110-115 degree
Hour, 0.5 gram of peroxidized t-butyl perbenzoate is added, 6 hours is kept the temperature in 110-115 degree, cools down, discharging.
(2) 150 grams of water based acrylic resin WR investments are added 5 grams of triethylamines and 0.5 gram of water, adjusted with paint cylinder
PH value is 7.6-7.8, high-speed stirred 30 minutes.
(3) plus 15 grams of solid contents be 80% amino resins 5717,0.3 gram of three wood, 270,0.3 gram of Digao Digao 902W, 0.2
Gram 450,0.3 gram of dispersing agent of Digao and 25 grams of aqueous purples are starched into paint cylinder, and high-speed stirred 0.5 hour, then plus 1 gram of DBE and 32
Gram water enters with paint cylinder, 1 hour of high-speed stirred
(4) for sample detection fineness less than 50 microns, water use regulation viscosity is packaging behind centipoise/25 degree 600-800.
Embodiment 3
(1) a kind of water based acrylic resin WR, step are first synthesized are as follows: first 6.5 grams of acrylic acid, 5 grams of vinyl acetates, 25 grams
Methyl methacrylate, 18 grams of hydroxypropyl acrylates, 24 grams of butyl acrylates, 18 grams of butyl methacrylates, 6 grams of benzoyl peroxides
Dropping tank is added in t-butyl formate, is uniformly mixed.Add 220 grams to enter ethylene glycol monobutyl ether and enter reaction kettle, opens stirring, be passed through nitrogen
Gas is heated to 110-115 degree, and the mixture of dropping tank is added dropwise, and drips off within 5 hours, keeps the temperature 4 hours in 110-115 degree, adds 0.5
Gram peroxidized t-butyl perbenzoate keeps the temperature 6 hours in 110-115 degree, cools down, discharging.
(2) 150 grams of water based acrylic resin WR investments are added 5 grams of triethylamines and 0.5 gram of water, adjusted with paint cylinder
PH value is 7.6-7.8, high-speed stirred 30 minutes.
(3) plus 14 grams of solid contents be 80% amino resins 5717,0.3 gram of three wood, 270,0.3 gram of Digao Digao 902W, 0.2
Gram 450,0.3 gram of dispersing agent of Digao and 25 grams of aqueous purples are starched into paint cylinder, and high-speed stirred 0.5 hour, then plus 3 grams of ethylene glycol lists
Methyl ether and 30 grams of water enter with paint cylinder, 1 hour of high-speed stirred
(4) for sample detection fineness less than 50 microns, water use regulation viscosity is packaging behind centipoise/25 degree 600-800.
Embodiment 4
(1) a kind of water based acrylic resin WR, step are first synthesized are as follows: first 3 grams of methacrylic acids, 4 grams of methacrylic acids,
5 grams of methacrylic acid norbornene esters, 5 grams of methyl methacrylates, 16 grams of hydroxy-ethyl acrylates, 21 grams of butyl acrylates, 33 grams of first
Base butyl acrylate, 8 grams of peroxidized t-butyl perbenzoates are added dropping tank, are uniformly mixed.224 grams are added to enter propyleneglycol monobutyl
Ether enters reaction kettle, opens stirring, is passed through nitrogen, is heated to 145-150 degree, and the mixture of dropping tank is added dropwise, and drips off within 4 hours,
145-150 degree keeps the temperature 2 hours, adds 0.5 gram of peroxidized t-butyl perbenzoate, keeps the temperature 6 hours in 130-135 degree, cooling, out
Material.
(2) 158 grams of water based acrylic resin WR investments are added 5.5 grams of triethylamines and 0.5 gram of water, adjusted with paint cylinder
Whole pH value be 7.8-8.3, high-speed stirred 30 minutes.
(3) plus 13 grams of solid contents be 80% amino resins 5717,0.2 gram of three wood, 270,0.2 gram of Digao Digao 902W, 0.2
Gram 450,0.3 gram of dispersing agent of Digao and 25 grams of aqueous purples are starched into paint cylinder, and high-speed stirred 0.5 hour, then plus 18 grams of ethylene glycol
Monomethyl ether and 30 grams of water, which enter to match, paints cylinder, and high-speed stirred 1 hour.
(4) for sample detection fineness less than 50 microns, water use regulation viscosity is packaging behind centipoise/25 degree 600-800.
The performance (95 degree of baking temperature, 30 minutes, 20 microns of film thickness) of 4 example baking vanish
| Baking vanish number | Example 1 | Example 2 | Example 3 | Example 4 | |
| Hardness | 2H | 2H | 2H | 2H | |
| Gloss (60 degree of glossometers | 95-98 | 95-97 | 96-98 | 95-99 | |
| Richness | It is good | It is good | It is good | It is good | |
| Bubble 240 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 300 hours | Pass through | Pass through | Pass through | Pass through | |
| UV machine shines 300 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 (4)
1. the present invention relates to a kind of preparation method of the aqueous amino acrylic baking purple paint of coating stainless steel, 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) according to a certain percentage under high velocity agitation respectively plus amino resins, defoaming agent, levelling agent, wetting agent, dispersing agent and
Aqueous blue mill base 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.
2. according to preparation method described in right 1, which is characterized in that water based acrylic resin WR in the step (1)
Solid content is 30% to 35%, and viscosity is centipoise/25 degree 150-300 (rotational viscometer), hydroxyl value 40-50mgKOH/g(100%
Solid content), acid value is 55-65mgKOH/g(100% solid content).
3. according to preparation method described in right 1, which is characterized in that aqueous blue mill base is with permanent violet system in the step (3)
The manufacture of column pigment.
4. the aqueous acrylic-amino of coating stainless steel obtained according to preparation method described in any one described in right 1 and 3
Toast purple paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082131.1A CN109852185A (en) | 2019-01-28 | 2019-01-28 | A kind of preparation method of the aqueous amino acrylic baking purple paint of coating stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910082131.1A CN109852185A (en) | 2019-01-28 | 2019-01-28 | A kind of preparation method of the aqueous amino acrylic baking purple paint of coating stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109852185A true CN109852185A (en) | 2019-06-07 |
Family
ID=66896581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910082131.1A Withdrawn CN109852185A (en) | 2019-01-28 | 2019-01-28 | A kind of preparation method of the aqueous amino acrylic baking purple paint of coating stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109852185A (en) |
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2019
- 2019-01-28 CN CN201910082131.1A patent/CN109852185A/en not_active Withdrawn
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Application publication date: 20190607 |