CN103146278A - Preparation method of low-temperature curing water-based acrylic amino baking coating - Google Patents
Preparation method of low-temperature curing water-based acrylic amino baking coating Download PDFInfo
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- CN103146278A CN103146278A CN2013100968465A CN201310096846A CN103146278A CN 103146278 A CN103146278 A CN 103146278A CN 2013100968465 A CN2013100968465 A CN 2013100968465A CN 201310096846 A CN201310096846 A CN 201310096846A CN 103146278 A CN103146278 A CN 103146278A
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Abstract
The invention discloses a preparation method of a low-temperature curing water-based acrylic amino baking coating, belonging to the field of a production technology of a water-based amino baking coating. The method comprises the following steps of: mixing water, a wetting dispersant, an antifoaming agent, an anti-settling agent, a color filler, anticorrosion filler and water-based epoxy modified acrylic resin, and dispersing uniformly to obtain slurry; in a stirring state, adding water-based amino resin, an anti-flash rust agent, a drier and a leveling agent into the ground slurry; and dispersing uniformly by a high-speed dispersing machine. The water-based acrylic amino baking coating provided by the invention is convenient to produce, the product has a single component, the diluent is water, the cost is low, and the product is environment-friendly; and after being diluted, the water-based acrylic amino baking coating is directly subjected to spray construction, the construction is convenient, the curing temperature is low, the drying speed is high, the construction efficiency of the water-based acrylic amino baking coating is improved, the resources are saved, and the cost is lowered. The dried film is flat, full and bright, and has good gloss retention and color retention and excellent mechanical performance, water resistance and corrosion resistance; and the film is resistant to grease and high temperature.
Description
Technical field
The invention belongs to the production technical field of the amino baked paint of water-based.
Background technology
Aminoacrylic acid is that baked paint has excellent guarantor's light, unfading, especially suitablely makes the investment precoat of high-decoration, high-weatherability and favored by the people.But the amino baked paint of water soluble acrylic acid in the market, general storing time are long, storing temperature is higher, causes energy consumption high, and practical application efficient is lower, affects it and applies.For this reason, the research of carrying out water-based low-temperature bake acrylic coating has broad application prospects.
Summary of the invention
The present invention seeks to propose a kind of easy to use, solidification value is low, the preparation method of the amino baked paint of low-temperature curing water soluble acrylic acid that time of drying is short.
The present invention includes following steps:
1) with being uniformly dispersed after water, wetting dispersing agent, defoamer, anti-settling agent, color stuffing, anticorrosive packing and waterborne epoxy modified acrylic resin mixing, form slurry;
2) slurry is ground to fineness≤25 μ m with sand mill;
3) under whipped state, water-compatible amino resin, anti-rust agent, siccative and the flow agent of dodging are joined in ground slurry, then be uniformly dispersed through the 1000r/min high speed dispersor.Described water-compatible amino resin is aqueous dispersion type and water-latex type water-borne acrylic resin.
The present invention is convenient to produce, and its superior effect is:
1, the present invention is single-component, and thinner is water, and cost is low, environmental protection, direct spraying construction after dilution, easy construction.
2, the amino baked paint solidification value of the prepared water soluble acrylic acid of the present invention is low, and rate of drying is fast, has improved the operating efficiency of the amino baked paint of water-based, has saved resource, has reduced cost.
3, the dried smooth coating of the present invention, plentiful, bright, have good gloss retention and tint retention, mechanical property, water-fast, excellent corrosion resistance, and the oil resistant dirt, high temperature resistant of filming can be used for the supercoat of locomotive engine.
4, the prepared product excellent storage stability of the present invention, and cost performance is high, can be widely used in the industrial circles such as automobile, household electrical appliances, five metals, also can be commonly used for the metallic surface anticorrosion with decorate, can do finish paint, base coat use, when application is unified in the bottom surface, have equally excellent decorative effect and protective effect.
In addition, aqueous dispersion type water-borne acrylic resin of the present invention can adopt waterborne epoxy modified acrylic resin 1628A; The water-latex type water-borne acrylic resin can adopt waterborne epoxy modified acrylic resin WR-553.
Described water-compatible amino resin is low methyl-etherified aminoresin 717, low methyl-etherified aminoresin 072, low methyl-etherified aminoresin MA-80 or low methyl-etherified aminoresin 5717W.
Described color stuffing comprises titanium dioxide, talcum powder and pigment, and described titanium dioxide is anatase thpe white powder or Rutile type Titanium Dioxide.
Described anticorrosive packing is zinc phosphate, composite zinc phosphate or aluminium triphosphate.
Described wetting dispersing agent is the compound WD-1010 of modification dihydroxy carboxylic acids salt; Described anti-settling agent is hydrophilic polyamide compound AS-280; Described defoamer is water-miscible paint defoamer AX-250; Described siccative is the sulfonic acid phosphamidon compound 2050W of sealing; Described flow agent is modification polyether diols compound F 17-hydroxy-corticosterone L-330.
Quality in order to ensure the product of producing, when mixing, water, wetting dispersing agent, defoamer, anti-settling agent, color stuffing, anticorrosive packing, waterborne epoxy modified acrylic resin, water-compatible amino resin, the anti-mass ratio that feeds intake that dodges rust agent, siccative and flow agent are 14～18 ︰ 0.4～1.2 ︰ 0.1～0.4 ︰ 1～3 ︰ 14～28 ︰ 8～15 ︰ 25～40 ︰ 7～15 ︰ 0.1～0.4 ︰ 0.5～2 ︰ 0.2～0.6.
Embodiment
One, batching:
The formula of embodiment 1:
| Raw material | Quality (unit: g) |
| Water | 16.2 |
| Water-borne acrylic resin 1628A | 35.7 |
| Anatase thpe white powder | 8 |
| Phthalocyanine blue | 0.1 |
| Yellow in coating | 2 |
| Zinc phosphate | 10 |
| Talcum powder | 10 |
| The compound WD-1010 of modification dihydroxy carboxylic acids salt | 0.6 |
| Hydrophilic polyamide compound AS-280 | 1.5 |
| Water-miscible paint defoamer AX-250 | 0.3 |
| The agent of anti-sudden strain of a muscle rust | 0.2 |
| Low methyl-etherified aminoresin 717 or low methyl-etherified aminoresin 072 | 14.3 |
| The sulfonic acid phosphamidon compound 2050W of sealing | 1.5 |
| Modification polyether diols compound F 17-hydroxy-corticosterone L-330 | 0.3 |
The formula of embodiment 2:
| Raw material | Quality (unit: g) |
| Water | 16.2 |
| Water-borne acrylic resin WR-553 | 35.7 |
| Rutile type Titanium Dioxide | 8 |
| Phthalocyanine blue | 0.1 |
| Yellow in coating | 2 |
| Composite zinc phosphate or aluminium triphosphate | 10 |
| Talcum powder | 10 |
| The compound WD-1010 of modification dihydroxy carboxylic acids salt | 0.6 |
| Hydrophilic polyamide compound AS-280 | 1.5 |
| Water-miscible paint defoamer AX-250 | 0.3 |
| The agent of anti-sudden strain of a muscle rust | 0.2 |
| Low methyl-etherified aminoresin MA-80 or low methyl-etherified aminoresin 5717W | 14.3 |
| The sulfonic acid phosphamidon compound 2050W of sealing | 1.5 |
| Modification polyether diols compound F 17-hydroxy-corticosterone L-330 | 0.3 |
Two, preparation technology:
Above two Formulation Examples are operated respectively according to the following steps:
(1) water, wetting dispersing agent WD-1010, defoamer AX-250, anti-settling agent AS-280, color stuffing (Huang and talcum powder in anatase thpe white powder, phthalocyanine blue, coating), anticorrosive packing (zinc phosphate or composite zinc phosphate or aluminium triphosphate) and waterborne epoxy modified acrylic resin (waterborne epoxy modified acrylic resin 1628A or waterborne epoxy modified acrylic resin WR-553) are put into Scattered Kettle, disperse 15～20min with the 1200r/min high speed dispersor, form slurry.
(2) slurry is joined sand mill, be ground to fineness≤25 μ m.
(3) (methyl-etherified aminoresin 717, import low methyl-etherified aminoresin 072, domestic low methyl-etherified aminoresin MA-80 or domestic low methyl-etherified aminoresin 5717W are hanged down in import with water-compatible amino resin under whipped state.), anti-rust agent, siccative (the sulfonic acid phosphamidon compound 2050W of sealing) and the flow agent (modification polyether diols compound F 17-hydroxy-corticosterone L-330) of dodging join in ground slurry, be uniformly dispersed with the 1000r/min high speed dispersor.
(4) packing.
Three, the coating of above-described embodiment 1 and 2 detected respectively, the coating main performance index is:
1, the coating indices of embodiment 1:
| Index name | Technical requirement | The actual measurement index |
| The coating state | Evenly without lump | Qualified |
| Stability in storage/d (60 ℃) | 7d is unchanged | Qualified |
| Solid part, % | —— | ≧65 |
| Appearance of film | —— | Smooth smooth |
| Time of drying/min (110 ℃) | —— | 20min |
| Sticking power (cross-hatching)/level | —— | 1 |
| Shock-resistant, Kgcm | 35 | 50 |
| Hardness (pencil method)/level | 2H | ≧2H |
| Snappiness, mm | 2 | 1 |
| Glossiness (60 ℃) | 90 | ≧90 |
| Water tolerance/h (25 ℃) | 168 | 480 |
| Salt water resistance/h (3% NaCl, 25 ℃) | 168 | 500 |
| The H of acid resistance/h(5% 2SO 4，40℃） | 4 | ≧4 |
| The NaOH of alkali resistance/h(5%, 40 ℃) | 4 | ≧4 |
| Petrol-resistance/h(is dipped in GB 1922-80 solvent oil) | 48 | Non-foaming, wrinkle resistant, do not come off |
| Anti-neutral salt spray test | 600 h line unidirectional corrosion＜2 mm | Qualified |
| Artificial weathering, h | 500 4 grades of variable colors | Qualified |
2, the coating indices of embodiment 2:
| Index name | Technical requirement | The actual measurement index |
| The coating state | Evenly without lump | Qualified |
| Stability in storage/d (60 ℃) | 7d is unchanged | Qualified |
| Solid part, % | —— | ≧55 |
| Appearance of film | —— | Smooth smooth |
| Time of drying/min (100 ℃) | —— | 20min |
| Sticking power (cross-hatching)/level | —— | 1 |
| Shock-resistant, Kgcm | 35 | 50 |
| Hardness (pencil method)/level | 2H | ≧2H |
| Snappiness, mm | 2 | 1 |
| Glossiness (60 ℃) | 90 | ≧90 |
| Water tolerance/h (25 ℃) | 168 | 400 |
| Salt water resistance/h (3% NaCl, 25 ℃) | 168 | 500 |
| The H of acid resistance/h(5% 2SO 4，40℃） | 4 | ≧4 |
| The NaOH of alkali resistance/h(5%, 40 ℃) | 4 | ≧4 |
| Petrol-resistance/h(is dipped in GB 1922-80 solvent oil) | 48 | Non-foaming, wrinkle resistant, do not come off |
| Anti-neutral salt spray test | 600 h line unidirectional corrosion＜2 mm | Qualified |
| Artificial weathering, h | 500 4 grades of variable colors | Qualified |
By above two tables as seen: aqueous dispersion type and water-latex type water-borne acrylic resin all can successfully be prepared into the amino baked paint of low-temperature curing water soluble acrylic acid of excellent performance.
Claims (7)
1. the preparation method of the amino baked paint of a low-temperature curing water soluble acrylic acid is characterized in that comprising the following steps:
1) with being uniformly dispersed after water, wetting dispersing agent, defoamer, anti-settling agent, color stuffing, anticorrosive packing and waterborne epoxy modified acrylic resin mixing, form slurry;
2) slurry is ground to fineness≤25 μ m with sand mill;
3) under whipped state, water-compatible amino resin, anti-rust agent, siccative and the flow agent of dodging are joined in ground slurry, then be uniformly dispersed through the 1000r/min high speed dispersor; Described water-compatible amino resin is aqueous dispersion type and water-latex type water-borne acrylic resin.
2. preparation method according to claim 1, is characterized in that described water-borne acrylic resin is waterborne epoxy modified acrylic resin 1628A or waterborne epoxy modified acrylic resin WR-553.
3. preparation method according to claim 1, it is characterized in that: described water-compatible amino resin is low methyl-etherified aminoresin 717, low methyl-etherified aminoresin 072, low methyl-etherified aminoresin MA-80 or low methyl-etherified aminoresin 5717W.
4. preparation method according to claim 1, it is characterized in that: described color stuffing comprises titanium dioxide, talcum powder and pigment, described titanium dioxide is anatase thpe white powder or Rutile type Titanium Dioxide.
5. preparation method according to claim 1, it is characterized in that: described anticorrosive packing is zinc phosphate, composite zinc phosphate or aluminium triphosphate.
6. preparation method according to claim 1, it is characterized in that: described wetting dispersing agent is the compound WD-1010 of modification dihydroxy carboxylic acids salt; Described anti-settling agent is hydrophilic polyamide compound AS-280; Described defoamer is water-miscible paint defoamer AX-250; Described siccative is the sulfonic acid phosphamidon compound 2050W of sealing; Described flow agent is modification polyether diols compound F 17-hydroxy-corticosterone L-330.
7. preparation method according to claim 1, it is characterized in that: during mixing, described water, wetting dispersing agent, defoamer, anti-settling agent, color stuffing, anticorrosive packing, waterborne epoxy modified acrylic resin, water-compatible amino resin, the anti-mass ratio that feeds intake that dodges rust agent, siccative and flow agent are 14～18 ︰ 0.4～1.2 ︰ 0.1～0.4 ︰ 1～3 ︰ 14～28 ︰ 8～15 ︰ 25～40 ︰ 7～15 ︰ 0.1～0.4 ︰ 0.5～2 ︰ 0.2～0.6.
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| CN103483986A (en) * | 2013-09-18 | 2014-01-01 | 中山蓝海洋水性涂料有限公司 | Environment-friendly shockproof water-based acrylic acid amino glass winebottle baking varnish and preparation method and application thereof |
| CN103805013A (en) * | 2014-02-24 | 2014-05-21 | 深圳市宝骏环保涂料有限公司 | Single-component acrylic water-based low temperature resistant wood floor paint and production method thereof |
| CN104804633A (en) * | 2015-05-08 | 2015-07-29 | 江苏科技大学 | Low-temperature quick-drying type polyurethane acrylate coating and preparation method thereof |
| CN105038524A (en) * | 2015-09-02 | 2015-11-11 | 太仓市金新涂料有限公司 | Modified acrylic resin energy-saving environment-friendly coating for oil drum body |
| CN105038344A (en) * | 2015-09-02 | 2015-11-11 | 太仓市金新涂料有限公司 | Modified acrylic resin energy conservation and environment protection coating for back plate of refrigerator |
| CN106243901A (en) * | 2016-08-26 | 2016-12-21 | 太仓市美航涂料有限公司 | A kind of high glaze aqueous amino-stoving varnish and preparation method thereof |
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| CN111892847A (en) * | 2020-07-24 | 2020-11-06 | 安徽江锐新材料有限公司 | Water-based acrylic amino varnish for improving drying rate and preparation method thereof |
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