CN103194139A - Novel outdoor pure polyester powder coating and preparation method thereof - Google Patents
Novel outdoor pure polyester powder coating and preparation method thereof Download PDFInfo
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- CN103194139A CN103194139A CN 201310089486 CN201310089486A CN103194139A CN 103194139 A CN103194139 A CN 103194139A CN 201310089486 CN201310089486 CN 201310089486 CN 201310089486 A CN201310089486 A CN 201310089486A CN 103194139 A CN103194139 A CN 103194139A
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- pure polyester
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Abstract
The invention relates to the field of a coating, and particularly relates to novel outdoor pure polyester powder coating and a preparation method thereof. The coating comprises the following ingredients by weight percent of 20-30% of hydroxyl polyester resin, 15-25% of polyurethane resin, 15-20% of paint, 25-45% of padding, 3-5% of declustering agent, 3-5% of cross-linking agent and 3-5% of curing agent. The preparation method comprises the steps of mixing all materials together to evenly agitate, extruding by powder equipment at a high temperature of 120 DEG C, cooling and pressing, and grinding into powder by a machine; and spraying on the metal surface by an electrostatic generator, and then heating to 120 DEG C to cure for 10 minutes. By adopting the novel outdoor pure polyester powder coating, the polyurethane resin is added to the traditional pure polyester powder coating, so that excellent weather resistance of the pure polyester powder coating is ensured; meanwhile, the cross-linking density is improved; the adhesive force is increased; and the required curing temperature is reduced.
Description
Technical field
The present invention relates to paint field, specifically is a kind of novel outdoor use pure polyester powdery paints and preparation method thereof.
Background technology
Powder coating and the general diverse form of coating, it is that state with fines exists, be a kind of novel, do not contain solvent, 100% solid powdery coating.Have without solvent, pollution-free, save characteristics such as the energy and resource, the physical strength height that reduces labor intensity and film.Because the powder coating technology of preparing makes progress in recent years, automobile Lacquer finish, timber and paint for plastics application all are most active potential markets.The growth in Greece, Turkey and powder coating and their application market, Eastern Europe is fine, and the Asian-Pacific market potentiality are bigger to be considered to global fastest-rising area.
Heat curable powder coating refers to thermosetting resin that as filmogen the solidifying agent that has added crosslinking reaction can form the insoluble quality hard coat that does not melt after heating.Temperature high this coating can be not softening as thermoplastic coating more yet, and can only decompose.Because the resin that thermosetting powder coating(s) adopts is the lower prepolymer of the polymerization degree, molecular weight is lower, so the levelling property of coating is better, have ornamental preferably, and low-molecular-weight prepolymer is after solidifying, can form the macromole of cross-linked network, thereby coating have better preservative property and mechanical property.So the thermosetting powder coating(s) development is particularly rapid.
Pure polyester type powder paint is the powder coating that adopts hydroxy polyester resin to make, and because having good weathering resistance, is commonly called Weather-resisting powder coating.Pure polyester type powder paint widespread use and door and window are with the application of aluminum extruded section bar material, the road sign stake, automotive industry, transportation equipment, the annex of automobile and motorcycle or wheel hub, frame and road segregator barriers, air conditioner casing and gas furnace plate, the flower garden apparatus, handrail and fence, outdoor fields such as agriculture apparatus and electric pole.Its shortcoming is that cross-linking density is lower, and the solidification value that needs is higher, and is lower to the sticking power of coated article.Urethane resin has higher cross-linking density; be that the polyurethane powder coating of main material preparation is because its excellent performance and can realize that lesser temps solidifies with it; Recent study and application are very active, are widely used in automobile, machinery, instrument and construction industry.
Summary of the invention
The invention provides a kind of novel outdoor use pure polyester powdery paints, by add urethane resin in pure polyester type powder paint, overcome existing pure polyester type powder paint shortcoming, it comprises following composition, and described ratio is all mass percent:
Vibrin 20-30%;
Urethane resin 15-25%;
Pigment 15-20%;
Filler 25-45%;
Matting agent 3-5%;
Linking agent 3-5%;
Solidifying agent 3-5%.
Further improve, described vibrin is hydroxy polyester resin; Described pigment is mineral dye; Described filler is one or more in calcium carbonate, talcum powder and the silica powder; Described matting agent is the LX15G catalyzer; Described linking agent is LX300 vinylformic acid; Described solidifying agent is LX835 polyamine affixture.
The present invention also provides a kind of method of making novel outdoor use pure polyester powdery paints: all raw material is mixed stir, extrude at 120 ℃ of following high temperature through powder equipment, cool off compressing tablet then, through the machine shape of claying into power, be sprayed onto the metallic surface through electrostatic power unit again, reheat to 120 ℃ curing 10 minutes.
The present invention combines in traditional pure polyester type powder paint and adds urethane resin, has both guaranteed the weathering resistance that pure polyester type powder paint is good, has improved cross-linking density simultaneously, has increased sticking power and reduced curing temperature required.
Embodiment
Embodiment 1
With 5kg hydroxy polyester resin, 5kg urethane resin, 4kg mineral dye, 4kg silica powder, 0.7kgLX15G catalyzer, 0.7kgLX300 vinylformic acid, the abundant mixing and stirring of 0.6kgLX835 polyamine affixture, extrude at 120 ℃ of following high temperature through powder equipment, cool off compressing tablet then, through the machine shape of claying into power, be sprayed onto the metallic surface through electrostatic power unit again, reheat to 120 ℃ curing 10 minutes.
Owing in outdoor application, mix type PES/TGIC matting agent so matting agent selects for use the good open air of weather resistance to do: the LX15G catalyzer.
Problems such as outdoor use pigment coloration pigment usage quantity is less, and the surface drying time of coating is longer, selects for use pigment dyestuff easily to produce loose colour, and is luminous are so select mineral dye for use.
It is as follows to press the prepared novel outdoor use pure polyester powdery paints performance test of embodiment 1:
The positive and negative impact of 50KG, the protruding 4mm of cup, 0 grade of sticking power;
Acid and alkali-resistance 1000H(loss of gloss＜15%, aberration E＜2.0);
The 4H(of anti-boiling water loss of gloss＜15%, aberration E＜2.0) hardness is greater than 2H;
The hot 200H(loss of gloss of moisture-proof＜15%, aberration E＜2.0).
Embodiment 2
With 6kg hydroxy polyester resin, 4kg urethane resin, 3kg mineral dye, 5kg silica powder, 0.7kgLX15G catalyzer, 0.6kgLX300 vinylformic acid, the abundant mixing and stirring of 0.7kgLX835 polyamine affixture, extrude at 120 ℃ of following high temperature through powder equipment, cool off compressing tablet then, through the machine shape of claying into power, be sprayed onto the metallic surface through electrostatic power unit again, reheat to 120 ℃ curing 10 minutes.
Embodiment 3
With 4kg hydroxy polyester resin, 3kg urethane resin, 4kg mineral dye, 7kg calcium carbonate and talcum powder mixture, 0.6kgLX15G catalyzer, 0.7kgLX300 vinylformic acid, the abundant mixing and stirring of 0.7kgLX835 polyamine affixture, extrude at 120 ℃ of following high temperature through powder equipment, cool off compressing tablet then, through the machine shape of claying into power, be sprayed onto the metallic surface through electrostatic power unit again, reheat to 120 ℃ curing 10 minutes.
The concrete application approach of the present invention is a lot, and the above only is preferred implementation of the present invention, should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (3)
1. novel outdoor use pure polyester powdery paints, it is characterized in that: comprise following composition, described ratio is all mass percent:
Vibrin 20-30%;
Urethane resin 15-25%;
Pigment 15-20%;
Filler 25-45%;
Matting agent 3-5%;
Linking agent 3-5%;
Solidifying agent 3-5%.
2. a kind of novel outdoor use pure polyester powdery paints according to claim 1, it is characterized in that: described vibrin is hydroxy polyester resin; Described pigment is mineral dye; Described filler is one or more in calcium carbonate, talcum powder and the silica powder; Described matting agent is the LX15G catalyzer; Described linking agent is LX300 vinylformic acid; Described solidifying agent is LX835 polyamine affixture.
3. method of making the described novel outdoor use pure polyester powdery paints of claim 1, it is characterized in that: all raw material is mixed stir, extrude at 120 ℃ of following high temperature through powder equipment, cool off compressing tablet then, through the machine shape of claying into power, be sprayed onto the metallic surface through electrostatic power unit again, reheat to 120 ℃ curing 10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310089486 CN103194139A (en) | 2013-03-20 | 2013-03-20 | Novel outdoor pure polyester powder coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310089486 CN103194139A (en) | 2013-03-20 | 2013-03-20 | Novel outdoor pure polyester powder coating and preparation method thereof |
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| CN103194139A true CN103194139A (en) | 2013-07-10 |
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| CN 201310089486 Pending CN103194139A (en) | 2013-03-20 | 2013-03-20 | Novel outdoor pure polyester powder coating and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283677A (en) * | 2016-08-18 | 2017-01-04 | 老虎粉末涂料制造（太仓）有限公司 | Photovoltaic module encapsulating material and the preparation method of this encapsulating material |
| CN106854425A (en) * | 2017-01-10 | 2017-06-16 | 杭州千姿塑粉有限公司 | Powdery paints and its processing technology with wood texture effect |
| CN111849317A (en) * | 2020-08-12 | 2020-10-30 | 湖南连心科技有限公司 | Poachable outdoor powder coating and preparation method thereof |
| CN113667338A (en) * | 2021-09-17 | 2021-11-19 | 浙江绿环新材料科技有限公司 | Fine touch thin-coating powder coating and preparation method thereof |
| CN113845644A (en) * | 2021-11-02 | 2021-12-28 | 黄山新佳精细材料有限公司 | Low-chlorine branched epoxy resin for powder coating and preparation method and application thereof |
-
2013
- 2013-03-20 CN CN 201310089486 patent/CN103194139A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283677A (en) * | 2016-08-18 | 2017-01-04 | 老虎粉末涂料制造（太仓）有限公司 | Photovoltaic module encapsulating material and the preparation method of this encapsulating material |
| CN106283677B (en) * | 2016-08-18 | 2018-11-09 | 老虎表面技术新材料（苏州）有限公司 | The preparation method of photovoltaic module encapsulating material and the encapsulating material |
| CN106854425A (en) * | 2017-01-10 | 2017-06-16 | 杭州千姿塑粉有限公司 | Powdery paints and its processing technology with wood texture effect |
| CN111849317A (en) * | 2020-08-12 | 2020-10-30 | 湖南连心科技有限公司 | Poachable outdoor powder coating and preparation method thereof |
| CN113667338A (en) * | 2021-09-17 | 2021-11-19 | 浙江绿环新材料科技有限公司 | Fine touch thin-coating powder coating and preparation method thereof |
| CN113845644A (en) * | 2021-11-02 | 2021-12-28 | 黄山新佳精细材料有限公司 | Low-chlorine branched epoxy resin for powder coating and preparation method and application thereof |
| CN113845644B (en) * | 2021-11-02 | 2023-08-15 | 黄山新佳精细材料有限公司 | Low-chlorine branched epoxy resin for powder coating and preparation method and application thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130710 |