CN102002308A - Extinction powder coating - Google Patents
Extinction powder coating Download PDFInfo
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- CN102002308A CN102002308A CN 201010551056 CN201010551056A CN102002308A CN 102002308 A CN102002308 A CN 102002308A CN 201010551056 CN201010551056 CN 201010551056 CN 201010551056 A CN201010551056 A CN 201010551056A CN 102002308 A CN102002308 A CN 102002308A
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- powder coating
- component prescription
- extinction
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Abstract
The invention relates to an extinction thermosetting powder coating which is applied to coating of outdoor metal products. The technical scheme adopted in the invention is that: the extinction powder coating is formed by performing dry mix on the powder coating of a slow reaction component formula and the powder coating of a quick reaction component formula, wherein the content of the powder coating of slow reaction component formula is 20 to 80 percent; and the content of the powder coating of quick reaction component formula is 80 to 20 percent. Through the scheme, the defects existing in the prior art are overcome, meanwhile, the cost of the powder coating is not obviously increased, and long-term research, development and practice application shows that one novel extinction powder coating of which the cost is close to that of a standard luster powder coating, the luster of coating film is between 10 and 40 percent and the luster can be randomly adjusted in a certain range is developed.
Description
Technical field
The present invention relates to be applied to a kind of extinction type thermosetting powder coating(s) that outdoor metal products is covered with paint, lacquer, colour wash, etc.
Background technology
Be applied to the extinction type powder coating of outdoor metal products, adopt usually and in the powder coating prescription, add stopping composition, wax powder, modified waxes powder, extinction type GMA acrylic resin or adopt the methods such as compound matting agent that contain carboxyl acrylic resin to carry out delustring with photoextinction.All there is certain defective that self can't overcome in various degree in these extinction methods, these methods or to be higher than 40% product for gloss the most effective or be lower than 10% the most effective for gloss, these extinction methods or have selectivity or have selectivity or production unit is had selectivity for vibrin for powder coating systems, these extinction methods of while all make the powder coating manufacturing cost have in various degree and increase substantially, significantly weakened the competitive power of this type of powder coating in market.
Above extinction method adopts the powder coating of isocyanic acid three-glycidyl ester all to have extraordinary suitability for crosslinking and curing agent.Yet all there is in various degree harm in the powder coating that crosslinking and curing agent adopts the isocyanic acid three-glycidyl ester to human body or environment.It is a kind of environment-friendly powder coating that is widely used in outdoor metal products in recent years that crosslinking and curing agent adopts the powder coating of beta-hydroxy alkylamide, has the advantage of low toxicity, environmental protection.But there is a kind of defective in this type of powder coating---gloss be difficult for to reduce, and no matter is to adopt extinction type stopping composition, wax powder and some other method, all is difficult to make coating gloss to reduce effectively, sometimes even obviously shortened the storage period of powder coating.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, being unlikely to make the powder coating cost to have significantly simultaneously rises, through exploitation and the application in practice of studying for a long period of time, developed a kind of cost and standard gloss powder coating cost is approaching, resulting coating film gloss is between 10%～40%, and the novel extinction powder coating that can arbitrarily adjust within the specific limits of gloss.
Realize above-mentioned purpose, the present invention adopts following technical scheme, a kind of extinction powder coating, it is characterized in that: it is done to mix by long response time component prescription powder coating and fast response component prescription powder coating and forms, wherein the content of long response time component prescription powder coating is 20-80%, the content of fast response component prescription powder coating is 80-20%, described long response time component prescription powder coating includes the vibrin of acid number 15-40mgKOH/g, crosslinking and curing agent, pure flow agent, defoamer and wax powder, described fast response component prescription powder coating includes the vibrin of acid number 45-100mgKOH/g, crosslinking and curing agent, pure flow agent, defoamer and wax powder.
By adopting such scheme, extinction powder coating is to be done to mix by long response time component prescription powder coating and fast response component prescription powder coating to form, its delustring principle just is that the powder coating speed of response of two kinds of component prescriptions there are differences, since incompatible and curing speed is inconsistent when the difference of speed of response etc. causes two kinds of powder coating melting and solidifications, the surface effect that has the rough uneven surface of microcosmic and form delustring formed.And the particle diameter of the powder coating component of two kinds of component prescriptions will influence nano and micro relief, and then influences the apparent decorative effect of coating, and powder diameter is controlled between 15～45 μ m usually, optimizes particle diameter and is controlled between 28～38 μ m.
The further setting of the present invention is: the crosslinking and curing agent in described long response time component prescription powder coating and the fast response component prescription powder coating adopts isocyanic acid three-glycidyl ester or beta-hydroxy alkylamide, and wherein the carboxyl in the vibrin in isocyanic acid three-glycidyl ester or beta-hydroxy alkylamide and long response time component prescription powder coating and the fast response component prescription powder coating is in the ratio dosage of 1:1.Also include tinting pigment and pigment extender in the described long response time component prescription powder coating, the preferred acid number of the vibrin in the long response time component prescription powder coating is 22-28mgKOH/g, also include tinting pigment and pigment extender in the described fast response component prescription powder coating, the preferred acid number of the vibrin in the fast response component prescription powder coating is 50-80mgKOH/g.Described long response time component prescription powder coating divides polyester resin 56-86 by quality, and the carboxyl amount in crosslinking and curing agent and the vibrin is suitable, pure flow agent 0.8-1.2, defoamer 0.2-0.6 and wax powder 0.6-1.2; Described fast response component prescription powder coating divides polyester resin 54-84 by quality, and the carboxyl amount in crosslinking and curing agent and the vibrin is suitable, pure flow agent 0.8-1.2, defoamer 0.2-0.6 and wax powder 0.6-1.2.
In the such scheme, extinction powder coating is to be done to mix by long response time component prescription powder coating and fast response component prescription powder coating to form, because product design, make, the factor of coating etc., be difficult to also guarantee that the powder utilization of powder coating component when application of two kinds of component prescriptions can reach consistent and not produce separation, reaching consistent powder utilization fully is a kind of perfect condition, and it is unrealistic, be the aberration of avoiding product to cause because of the difference of powder utilization, need when deisgn product, two kinds of speed component color coloured silks be adjusted to consistent basically, even the powdery components of two kinds of component prescriptions generation coating separation phenomenon also is unlikely to cause aberration like this, so just need adopt tinting pigment and pigment extender in the powdery components with two kinds of components prescriptions.
Embodiment
Further specify the present invention below by some embodiment, but the present invention is not subjected to any qualification of these embodiment.
Embodiment 1
Present embodiment is crosslinking and curing agent with the beta-hydroxy alkylamide, integral formula such as table 1, and the A that wherein fills a prescription is independently filling a prescription in the integral formula with prescription B, has constituted integral formula jointly by prescription A and prescription B.
Table 1 is that doing of filmogen mixed the delustring system formulation with polyester/beta-hydroxy alkylamide
The making of powder at the bottom of the long response time component prescription powder coating.By the respectively weighing of mass parts of raw material among the prescription A, after pre-mixing → extrude → cool off → operations such as coarse crushing, treat that fine powder is broken then.
The making of powder at the bottom of the fast response component prescription powder coating.By the respectively weighing of mass parts of raw material among the prescription B, treat that through pre-mixing → extrude → cool off → operations such as coarse crushing fine powder is broken then.
The production technique of above speed reactive component prescription powder coating is with the production technique of common thermosetting powder coating(s), and difference is little, and the common technology of industry is all known.Difference is subsequent handling.Broken for the postorder fine powder, two kinds of coarse reduction sheet stocks of speed can carry out common pulverizing in the ratio of about 1:1, also can carry out the broken back of carrying out again of fine powder respectively and mix.Because the blending ratio fluctuation by a small margin for speed two components does not have tangible influence for doing the final gloss that mixes extinction powder coating, advise usually that therefore the dried extinction powder that mixes adopts pulverizing production altogether, can reduce by one back like this and mix operation.After screening control meal content, packing is finished product; The gloss of final gained powder coating is about 20%.
Embodiment 2
Present embodiment is a crosslinking and curing agent with isocyanic acid three-glycidyl ester (TGIC), integral formula such as table 2, and the A that wherein fills a prescription is independently filling a prescription in the integral formula with prescription B, has constituted integral formula jointly by prescription A and prescription B.
Table 2 is that doing of filmogen mixed the delustring system formulation with polyester/TGIC
The making of powder at the bottom of the long response time component prescription powder coating.By the respectively weighing of mass parts of raw material among the prescription A, after pre-mixing → extrude → cool off → operations such as coarse crushing, treat that fine powder is broken then.
The making of powder at the bottom of the fast response component prescription powder coating.By the respectively weighing of mass parts of raw material among the prescription B, treat that through pre-mixing → extrude → cool off → operations such as coarse crushing fine powder is broken then.
The production technique of above speed reactive component prescription powder coating is with the production technique of common thermosetting powder coating(s), and difference is little, and industry common technician all know.Difference is subsequent handling.Broken for the postorder fine powder, two kinds of coarse reduction sheet stocks of speed can carry out common pulverizing in the ratio of about 1:1, also can carry out the broken back of carrying out again of fine powder respectively and mix.Because the blending ratio fluctuation by a small margin for speed two components does not have tangible influence for doing the final gloss that mixes extinction powder coating, advise usually that therefore the dried extinction powder that mixes adopts pulverizing production altogether, can reduce by one back like this and mix operation.After screening control meal content, packing is finished product; The gloss of final gained powder coating is about 20%.
Embodiment 3
Present embodiment is respectively the crosslinking and curing agent of slow fast response component with isocyanic acid three-glycidyl ester (TGIC) and beta-hydroxy alkylamide, integral formula such as table 3, the A that wherein fills a prescription is independently filling a prescription in the integral formula with prescription B, has constituted integral formula jointly by prescription A and prescription B.Need to prove, if isocyanic acid three-glycidyl ester (TGIC) and beta-hydroxy alkylamide are respectively the crosslinking and curing agent of speed reactive component, the similar table 3 of formulation composition, but the filmogen ratio need adjust, and other is basic identical, no longer explanation.
It is that doing of mixed curing agent mixed the extinction powder formulation for coating material that table 3 adopts TGIC and beta-hydroxy alkylamide
The making of powder at the bottom of the long response time component prescription powder coating.By the respectively weighing of mass parts of raw material among the prescription A, after pre-mixing → extrude → cool off → operations such as coarse crushing, treat that fine powder is broken then.
The making of powder at the bottom of the fast response component prescription powder coating.By the respectively weighing of mass parts of raw material among the prescription B, treat that through pre-mixing → extrude → cool off → operations such as coarse crushing fine powder is broken then.
The production technique of above speed reactive component is with the production technique of common thermosetting powder coating(s), and difference is little, and industry common technician all know.Difference is subsequent handling.Broken for the postorder fine powder, two kinds of coarse reduction sheet stocks of speed can carry out common pulverizing in the ratio of about 1:1, also can carry out the broken back of carrying out again of fine powder respectively and mix.Because the blending ratio fluctuation by a small margin for speed two components does not have tangible influence for doing the final gloss that mixes extinction powder coating, advise usually that therefore the dried extinction powder that mixes adopts pulverizing production altogether, can reduce by one back like this and mix operation.After screening control meal content, packing is finished product; The gloss of final gained powder coating is about 20%.
Claims (4)
1. extinction powder coating, it is characterized in that: it is done to mix by long response time component prescription powder coating and fast response component prescription powder coating and forms, wherein the content of long response time component prescription powder coating is 20-80%, the content of fast response component prescription powder coating is 80-20%, described long response time component prescription powder coating includes the vibrin of acid number 15-40mgKOH/g, crosslinking and curing agent, pure flow agent, defoamer and wax powder, described fast response component prescription powder coating includes the vibrin of acid number 45-100mgKOH/g, crosslinking and curing agent, pure flow agent, defoamer and wax powder.
2. extinction powder coating according to claim 1, it is characterized in that: the crosslinking and curing agent in described long response time component prescription powder coating and the fast response component prescription powder coating adopts isocyanic acid three-glycidyl ester or beta-hydroxy alkylamide, and wherein the carboxyl in the vibrin in isocyanic acid three-glycidyl ester or beta-hydroxy alkylamide and long response time component prescription powder coating and the fast response component prescription powder coating is in the ratio dosage of 1:1.
3. extinction powder coating according to claim 1 and 2, it is characterized in that: also include tinting pigment and pigment extender in the described long response time component prescription powder coating, the preferred acid number of the vibrin in the long response time component prescription powder coating is 22-28mgKOH/g, also include tinting pigment and pigment extender in the described fast response component prescription powder coating, the preferred acid number of the vibrin in the fast response component prescription powder coating is 50-80mgKOH/g.
4. extinction powder coating according to claim 1 and 2, it is characterized in that: described long response time component prescription powder coating divides polyester resin 56-86 by quality, carboxyl amount in crosslinking and curing agent and the vibrin is suitable, pure flow agent 0.8-1.2, defoamer 0.2-0.6 and wax powder 0.6-1.2; Described fast response component prescription powder coating divides polyester resin 54-84 by quality, and the carboxyl amount in crosslinking and curing agent and the vibrin is suitable, pure flow agent 0.8-1.2, defoamer 0.2-0.6 and wax powder 0.6-1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010551056 CN102002308A (en) | 2010-11-19 | 2010-11-19 | Extinction powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010551056 CN102002308A (en) | 2010-11-19 | 2010-11-19 | Extinction powder coating |
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|---|---|
| CN102002308A true CN102002308A (en) | 2011-04-06 |
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| CN 201010551056 Pending CN102002308A (en) | 2010-11-19 | 2010-11-19 | Extinction powder coating |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277067A (en) * | 2011-05-24 | 2011-12-14 | 上海元方涂料有限公司 | Thermosetting weather-resistant low-temperature solidifying powder |
| WO2012034507A1 (en) * | 2010-09-13 | 2012-03-22 | Akzo Nobel Powder Coatings (Ningbo) Co. Ltd. | Superdurable powder coating composition |
| CN102585672A (en) * | 2012-02-21 | 2012-07-18 | 太仓立崴涂装材料有限公司 | Powder paint with high surface hardness |
| CN102719180A (en) * | 2012-07-04 | 2012-10-10 | 佛山市顺德区伊诗德新材料科技有限公司 | Preparation method of polyester resin capable of being used for outdoor dry mixed extinction powder coating |
| CN103319993A (en) * | 2013-04-26 | 2013-09-25 | 安徽美佳新材料股份有限公司 | Matt dry-mixing powder coating material and production method thereof |
| CN104046214A (en) * | 2014-07-07 | 2014-09-17 | 广东华江粉末科技有限公司 | Energy-saving environment-friendly low-gloss polyester acrylate powder paint for aluminum profile and preparation method thereof |
| CN108641560A (en) * | 2018-04-27 | 2018-10-12 | 江门市力昌新材料有限公司 | A kind of high metal pigment content zero diopter powdery paints and preparation method thereof |
| CN112126325A (en) * | 2020-10-13 | 2020-12-25 | 常熟方塔塑粉有限公司 | Preparation method of solvent-free 100% solid matt coil steel powder coating |
| CN114621617A (en) * | 2020-12-08 | 2022-06-14 | 梧州市泽和高分子材料有限公司 | Extinction auxiliary agent for beta-hydroxyalkylamide powder coating |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101067066A (en) * | 2006-05-05 | 2007-11-07 | 罗门哈斯公司 | Acid functional phosphorus-containing polyester powder compositions and powder coatings made therefrom |
| CN101432376A (en) * | 2005-12-15 | 2009-05-13 | 杜邦强力涂料法国有限公司 | Low gloss coil powder coating composition for coil coating |
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2010
- 2010-11-19 CN CN 201010551056 patent/CN102002308A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101432376A (en) * | 2005-12-15 | 2009-05-13 | 杜邦强力涂料法国有限公司 | Low gloss coil powder coating composition for coil coating |
| CN101067066A (en) * | 2006-05-05 | 2007-11-07 | 罗门哈斯公司 | Acid functional phosphorus-containing polyester powder compositions and powder coatings made therefrom |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012034507A1 (en) * | 2010-09-13 | 2012-03-22 | Akzo Nobel Powder Coatings (Ningbo) Co. Ltd. | Superdurable powder coating composition |
| CN102277067A (en) * | 2011-05-24 | 2011-12-14 | 上海元方涂料有限公司 | Thermosetting weather-resistant low-temperature solidifying powder |
| CN102585672A (en) * | 2012-02-21 | 2012-07-18 | 太仓立崴涂装材料有限公司 | Powder paint with high surface hardness |
| CN102719180A (en) * | 2012-07-04 | 2012-10-10 | 佛山市顺德区伊诗德新材料科技有限公司 | Preparation method of polyester resin capable of being used for outdoor dry mixed extinction powder coating |
| CN103319993A (en) * | 2013-04-26 | 2013-09-25 | 安徽美佳新材料股份有限公司 | Matt dry-mixing powder coating material and production method thereof |
| CN104046214A (en) * | 2014-07-07 | 2014-09-17 | 广东华江粉末科技有限公司 | Energy-saving environment-friendly low-gloss polyester acrylate powder paint for aluminum profile and preparation method thereof |
| CN108641560A (en) * | 2018-04-27 | 2018-10-12 | 江门市力昌新材料有限公司 | A kind of high metal pigment content zero diopter powdery paints and preparation method thereof |
| CN112126325A (en) * | 2020-10-13 | 2020-12-25 | 常熟方塔塑粉有限公司 | Preparation method of solvent-free 100% solid matt coil steel powder coating |
| CN114621617A (en) * | 2020-12-08 | 2022-06-14 | 梧州市泽和高分子材料有限公司 | Extinction auxiliary agent for beta-hydroxyalkylamide powder coating |
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Application publication date: 20110406 |