CN105038447A - Powder coating with metal flashing effect, as well as preparation method and application method of powder coating - Google Patents
Powder coating with metal flashing effect, as well as preparation method and application method of powder coating Download PDFInfo
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- CN105038447A CN105038447A CN201510349086.3A CN201510349086A CN105038447A CN 105038447 A CN105038447 A CN 105038447A CN 201510349086 A CN201510349086 A CN 201510349086A CN 105038447 A CN105038447 A CN 105038447A
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Abstract
The invention belongs to the field of functional powder coating, and particularly relates to powder coating with a metal flashing effect, as well as a preparation method and an application method of the powder coating. The powder coating is prepared by combining a composition A, a composition B and a composition C, wherein the composition A comprises the following raw materials in percentage by weight: 26.0-35.0% of bisphenol A-type ethoxyline resin, 32.5-42.0% of carboxyl terminated polyester resin, 0.5-1.0% of a leveling agent, 0.3-0.6% of a degassing agent, 2.0-33.5% of one or more pigments and 10-20.0% of a filler; the composition B comprises the following raw materials in percentage by weight: 90-99% of the composition A and 1-10% of one or more metal pigments; the composition C comprises the following raw materials in percentage by weight: 77.3-80.3% of GMA-type acrylic resin, 18.2-21.2% of dodecanedioic acid, 0.5-1% of the leveling agent and 0.3-0.6% of the degassing agent. A double-layer coating film is formed after application of the powder coating, so that the powder coating is high in impact resistance and bending resistance. The invention further provides the preparation method and the application method of the powder coating.
Description
Technical field
The invention belongs to functional powder paint field, be specifically related to a kind of metallic travel powder coating and preparation method and application method thereof.
Background technology
Metallic travel powder coating is because wherein have employed the lamellar pigment of copper powder, aluminium powder, mica powder and so on and presenting the metallic luster of multicolour effect, for the Industrial Metal goods such as building materials, household electrical appliances, furniture and instrument provide bright and colourful decorative appearance.The use of lamellar pigment also brings the bad defect of rub resistance, and crux is just being that floating over film coated surface provides the lamellar pigment of metallic travel to damage to some extent and environmental attack by rubbing effect, easily occurs the phenomenon that film turns black.Usually need be coated with Clear coating in its face cap to be protected for this reason.Normal practice is coated with layer of transparent powder at metallic travel curing of coating back cover, again solidify to form dual-coating system.This processing method, workpiece need carry out twice application, twice baking and twice cooling, and man-hour, energy consumption, artificial consumption are all very large, and cost is high, and product competitiveness weakens.
Summary of the invention
For the deficiencies in the prior art, the object of this invention is to provide a kind of metallic travel powder coating, without the need to secondary application secondary baking, disposable application can form the double-deck film comprising flash metal luster coating and protectiveness cover Clear coating thereof; The present invention provides its preparation method and methods for using them simultaneously.
Metallic travel powder coating of the present invention, is composited by 3 components, and 3 components are made up of the raw material of following weight percentage respectively:
Component A:
B component:
Component A 90-99%;
Metallic pigment 1-10%;
Component C:
Wherein, bisphenol A type epoxy resin is preferably the E-12 that Anhui Hengyuan Chemical Co., Ltd. produces;
Terminal carboxyl polyester resin is preferably 6055 of Zhongfa Chemistry Co., Ltd., Hangzhou's production;
Flow agent is preferably the flow agent 588 that South Sea chemical inc produces.
Air release agent is preferably st-yrax.
GMA type acrylic resin is preferably the T308 that Dongguan Zhong Tian finishing material company limited produces.
Pigment optimization is one or more in permanent yellow, lemon orange, carbon black or Rutile type Titanium Dioxide.
Filler is preferably calcium carbonate.
Metallic pigment are preferably one or more in mica titanium nacreous material, flake-like aluminium powder pigment or flake copper pigment.
The preparation method of described metallic travel powder coating, comprises the following steps:
(1) preparation of component A: after bisphenol A type epoxy resin, terminal carboxyl polyester resin, flow agent, air release agent, pigment and filler are fully mixed, after melt extruding and cooling compressing tablet, crush and screen, obtain component A;
(2) preparation of B component: the component A that metallic pigment and step (1) prepare is determined to mix in mixer in nation, makes nation and determine metal powder, sieve to obtain B component;
(3) preparation of component C: after GMA type acrylic resin, dodecanedioic acid, flow agent and air release agent are fully mixed, after melt extruding and cooling compressing tablet, crush and screen, obtain component C;
(4) preparation of metallic travel powder coating: B component and component C are fully mixed, obtains metallic travel powder coating.
Component A is thermosetting polyester/epoxy mixed powder coating, and B component is nation's shaped metal flash effect powder coating, and component C is thermosetting acrylic resin cover transparent powder paint.
Wherein,
In step (1), the preparation method of component A is preferably: after bisphenol A type epoxy resin, terminal carboxyl polyester resin, flow agent, air release agent, pigment and filler fully being mixed, melt extrude at 80 ~ 105 DEG C in singe screw or twin screw extruder, after cooling compressing tablet, pulverize with micronizer mill, be separated through single-stage or multi-cyclone, obtain the powder particle of median size 15 ~ 40 μm with rotating screen or bolting.
In step (2), the preparation method of B component is preferably: the component A that metallic pigment and step (1) prepare determined to mix in mixer in nation, make nation and determine metal powder, with rotating screen or bolting.Compared to traditional metal powder dry mixing process, nation determines technique can make metal effect pigments and film forming matter bond together, and have metallic travel and stablize, batch aberration is little, there will not be piebald defect, and recycling powder such as directly can to use at the plurality of advantages.
In step (3), the preparation method of component C is preferably: after GMA type acrylic resin, dodecanedioic acid, flow agent and air release agent fully being mixed, melt extrude at 80 ~ 105 DEG C in singe screw or twin screw extruder, after cooling compressing tablet, pulverize with micronizer mill, be separated through single-stage or multi-cyclone, obtain the powder particle of median size 15 ~ 40 μm with rotating screen or bolting.
In step (4), B component and component C fully mix, and the mass ratio of B component and component C is 4-6:6-4.
The particle diameter of the metallic travel powder coating that step (4) prepares is 15-40 μm.
The application method of described metallic travel powder coating, first, adopts electrostatic spraying to be coated to pretreated metallic substrate surface the metallic travel powder coating prepared, is then cured, obtains double-deck film.The thickness of the double-deck film of gained is 30-60 μm.
Wherein, be cured as and be incubated 18-25min in channel-type hot air circulation drying tunnel, solidification value is 180-200 DEG C.In solidification process, because there is uncompatibility with B component in component C, and the proportion comparatively gently surface of emersion B component coating, the flash metal luster coating that after solidification, formation 30 ~ 60 μm is thick completely and cover Clear coating.
Compared with prior art, the present invention has following beneficial effect:
(1) the metallic travel powder coating for preparing of the present invention, polyester/epoxy mixed powder coating is combined with acrylic resin Clear paint, coordinate coated solidified technique, without the need to secondary application secondary baking, disposable application can form the double-deck film comprising flash metal luster coating and protectiveness cover Clear coating thereof; Reach and reduce coating decoration cost, save energy consumption, reduce the object of cost of labor.The film formed has good shock resistance and bending, is applicable to the application of the metallic substance such as the steel of the industries such as building materials, household electrical appliances, furniture, sports equipment and 3C Product, aluminium.
(2) the present invention provides its preparation method simultaneously, and technique is simple, be easy to realize.
(3) the present invention provides its application method simultaneously, electrostatic spraying is adopted to be coated to pretreated metallic substrate surface the metallic travel powder coating prepared, be set as in temperature being incubated 18-25min in the channel-type hot air circulation drying tunnel of 180-200 DEG C, in this process because there is uncompatibility with B component in component C, and the proportion comparatively gently surface of emersion B component coating, the double-deck film comprising flash metal luster coating and cover Clear coating that after solidification, formation 30-60 μm is thick completely.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
The all raw materials used in embodiment, except specified otherwise, are commercial.
Embodiment 1
Metallic travel powder coating described in the present embodiment, is composited by 3 components, and 3 components are made up of the raw material of following weight percentage respectively:
Component A:
B component:
Component A 94.5%;
Flake copper pigment 2.0%;
Mica titanium nacreous material 3.5%;
Component C:
Preparation method is as follows:
(1) preparation of component A: by E-12,6055, after flow agent 588, st-yrax, permanent yellow, lemon orange, carbon black, Rutile type Titanium Dioxide and calcium carbonate fully mixes, melt extrude at 100 DEG C in twin screw extruder, after cooling compressing tablet, pulverize with micronizer mill, be separated through multi-cyclone, obtaining the powder particle of median size 15 ~ 40 μm with rotating screen screening, is component A.
(2) preparation of B component: flake copper pigment and mica titanium nacreous material are determined to mix in mixer in nation with the component A that step (1) prepares, make nation and determine metal powder, with bolting, remove more than 40 μm large particulate matters, obtain B component.
(3) preparation of component C: after T308, dodecanedioic acid, flow agent 588 and st-yrax mixer are fully mixed, melt extrude at 100 DEG C in twin screw extruder, cooling compressing tablet, pulverize with micronizer mill, be separated through multi-cyclone, obtaining the finished product powder particle of median size 15 ~ 40 μm with rotating screen screening, is component C.
(4) preparation of metallic travel powder coating: by B component and component C in mass ratio for 5:5 adds in dry-mixed machine, runs mixed mode 10min, makes metallic travel powder coating.
Application method is as follows:
The electrostatic spraying used for powder coating that step (4) obtains is coated to pretreated surface of steel plate, with the channel-type hot air circulation drying tunnel baking 18min of 200 DEG C, in this process because there is uncompatibility with B component in component C, and the proportion comparatively gently surface of emersion B component coating, form the double-deck film comprising flash metal luster coating and protective cover Clear coating thereof completely after solidification.The performance test results of film is in table 1.
Embodiment 2
Metallic travel powder coating described in the present embodiment, is composited by 3 components, and 3 components are made up of the raw material of following weight percentage respectively:
Component A:
B component:
Component A 94.5%;
Flake-like aluminium powder pigment 1.0%;
Mica titanium nacreous material 4.5%;
Component C:
Preparation method is as follows:
(1) preparation of component A: by E-12,6055, after flow agent 588, st-yrax, carbon black, Rutile type Titanium Dioxide and calcium carbonate fully mixes, melt extrude at 90 DEG C in single screw extrusion machine, after cooling compressing tablet, pulverize with micronizer mill, be separated through single stage cyclone, obtaining the powder particle of median size 15 ~ 40 μm with rotating screen screening, is component A.
(2) preparation of B component: flake-like aluminium powder pigment and mica titanium nacreous material are determined to mix in mixer in nation with the component A that step (1) prepares, make nation and determine metal powder, with bolting, remove more than 40 μm large particulate matters, obtain B component.
(3) preparation of component C: after T308, dodecanedioic acid, flow agent 588 and st-yrax mixer are fully mixed, melt extrude at 90 DEG C in single screw extrusion machine, cooling compressing tablet, pulverize with micronizer mill, be separated through multi-cyclone, obtaining the finished product powder particle of median size 15 ~ 40 μm with rotating screen screening, is component C.
(4) preparation of metallic travel powder coating: by B component and component C in mass ratio for 4:6 adds in dry-mixed machine, runs mixed mode 15min, makes metallic travel powder coating.
Application method is as follows:
The electrostatic spraying used for powder coating that step (4) obtains is coated to pretreated surface of steel plate, with the channel-type hot air circulation drying tunnel baking 25min of 180 DEG C, in this process because there is uncompatibility with B component in component C, and the proportion comparatively gently surface of emersion B component coating, form the double-deck film comprising flash metal luster coating and protective cover Clear coating thereof completely after solidification.The performance test results of film is in table 1.
Embodiment 3
Metallic travel powder coating described in the present embodiment, is composited by 3 components, and 3 components are made up of the raw material of following weight percentage respectively:
Component A:
B component:
Component A 95.5%;
Mica titanium nacreous material 4.5%;
Component C:
Preparation method is as follows:
(1) preparation of component A: by E-12,6055, after flow agent 588, st-yrax, carbon black and calcium carbonate fully mixes, melt extrude at 80 DEG C in twin screw extruder, after cooling compressing tablet, pulverize with micronizer mill, be separated through single stage cyclone, obtaining the powder particle of median size 15 ~ 40 μm with rotating screen screening, is component A.
(2) preparation of B component: the component A that mica titanium nacreous material and step (1) prepare determined to mix in mixer in nation, make nation and determine metal powder, with bolting, removes more than 40 μm large particulate matters, obtains B component.
(3) preparation of component C: after T308, dodecanedioic acid, flow agent 588 and st-yrax mixer are fully mixed, melt extrude at 80 DEG C in twin screw extruder, cooling compressing tablet, pulverize with micronizer mill, be separated through multi-cyclone, obtaining the finished product powder particle of median size 15 ~ 40 μm with rotating screen screening, is component C.
(4) preparation of metallic travel powder coating: by B component and component C in mass ratio for 6:4 adds in dry-mixed machine, runs mixed mode 12min, makes metallic travel powder coating.
Application method is as follows:
The electrostatic spraying used for powder coating that step (4) obtains is coated to pretreated surface of steel plate, with the channel-type hot air circulation drying tunnel baking 20min of 195 DEG C, in this process because there is uncompatibility with B component in component C, and the proportion comparatively gently surface of emersion B component coating, form the double-deck film comprising flash metal luster coating and protective cover Clear coating thereof completely after solidification.The performance test results of film is in table 1.
The performance test results of the metallic travel powder coating film that table 1 embodiment 1-3 prepares
| Thickness, μm | 60 ° of gloss | Impact | Folding test | |
| Reference standard | ISO 2808-2007 | GB/T1743-1979 | GB/T1732-1993 | GB/T6742-2007 |
| Embodiment 1 | 30～60 | >90 | 50cm·kg | 1mm |
| Embodiment 2 | 30～60 | >90 | 50cm·kg | 1mm |
| Embodiment 3 | 30～60 | >90 | 50cm·kg | 1mm |
Claims (7)
1. a metallic travel powder coating, is characterized in that: be composited by component A, B component and component C, and 3 components are made up of the raw material of following weight percentage respectively:
Component A:
B component:
Component A 90-99%;
Metallic pigment 1-10%;
Component C:
2. a preparation method for metallic travel powder coating according to claim 1, is characterized in that: comprise the following steps:
(1) preparation of component A: after bisphenol A type epoxy resin, terminal carboxyl polyester resin, flow agent, air release agent, pigment and filler are fully mixed, after melt extruding and cooling compressing tablet, crush and screen, obtain component A;
(2) preparation of B component: the component A that metallic pigment and step (1) prepare is determined to mix in mixer in nation, makes nation and determine metal powder, sieve to obtain B component;
(3) preparation of component C: after GMA type acrylic resin, dodecanedioic acid, flow agent and air release agent are fully mixed, after melt extruding and cooling compressing tablet, crush and screen, obtain component C;
(4) preparation of metallic travel powder coating: B component and component C are fully mixed, obtains metallic travel powder coating.
3. the preparation method of metallic travel powder coating according to claim 2, is characterized in that: in step (4), B component and component C fully mix, and the mass ratio of B component and component C is 4-6:6-4.
4. the preparation method of metallic travel powder coating according to claim 2, is characterized in that: the particle diameter of the metallic travel powder coating that step (4) prepares is 15-40 μm.
5. the application method of a metallic travel powder coating according to claim 1, it is characterized in that: first, adopt electrostatic spraying to be coated to pretreated metal sheet surface the metallic travel powder coating prepared, be then cured, obtain double-deck film.
6. the application method of metallic travel powder coating according to claim 5, is characterized in that: be cured as and be incubated 18-25min in channel-type hot air circulation drying tunnel, and solidification value is 180-200 DEG C.
7. the application method of metallic travel powder coating according to claim 5, is characterized in that: the thickness of double-deck film is 30-60 μm.
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| CN201510349086.3A CN105038447A (en) | 2015-06-23 | 2015-06-23 | Powder coating with metal flashing effect, as well as preparation method and application method of powder coating |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219193A (en) * | 2015-11-12 | 2016-01-06 | 蚌埠开恒电子有限公司 | A kind of environment-friendly antirust powder coating and preparation method thereof |
| CN105969058A (en) * | 2016-06-03 | 2016-09-28 | 杭州千姿塑粉有限公司 | Thermosetting powder paint and processing technology thereof |
| CN107337986A (en) * | 2017-06-21 | 2017-11-10 | 浙江绿能塑粉有限公司 | A kind of low separation bonding flash silver powdery paints and preparation method thereof |
| CN108084841A (en) * | 2017-12-04 | 2018-05-29 | 浙江捷宇新材料科技股份有限公司 | A kind of acidproof alkaline simulating golden colour powdery paints and preparation method thereof |
| CN108373765A (en) * | 2018-02-06 | 2018-08-07 | 佛山市南海嘉多彩粉末涂料有限公司 | A kind of bonding metal-effect powder paint |
| CN110540793A (en) * | 2019-10-24 | 2019-12-06 | 江南载福粉末涂料（张家港）有限公司 | High-silver-flashing corrosion-resistant powder coating |
| CN111423791A (en) * | 2020-03-12 | 2020-07-17 | 瀚森新材料(南京)有限公司 | Powder coating with weaving texture effect and metal section bar using same |
| CN114231067A (en) * | 2021-12-28 | 2022-03-25 | 厦门国丽静电粉末有限公司 | Powder coating with good insulating property and preparation method thereof |
| CN115160907A (en) * | 2017-04-07 | 2022-10-11 | Ppg工业俄亥俄公司 | Coating composition, dielectric coating formed therefrom and method of preparing dielectric coating |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105219193A (en) * | 2015-11-12 | 2016-01-06 | 蚌埠开恒电子有限公司 | A kind of environment-friendly antirust powder coating and preparation method thereof |
| CN105969058A (en) * | 2016-06-03 | 2016-09-28 | 杭州千姿塑粉有限公司 | Thermosetting powder paint and processing technology thereof |
| CN115160907A (en) * | 2017-04-07 | 2022-10-11 | Ppg工业俄亥俄公司 | Coating composition, dielectric coating formed therefrom and method of preparing dielectric coating |
| CN115160907B (en) * | 2017-04-07 | 2024-02-23 | Ppg工业俄亥俄公司 | Coating composition, dielectric coating formed therefrom and method of preparing dielectric coating |
| CN107337986A (en) * | 2017-06-21 | 2017-11-10 | 浙江绿能塑粉有限公司 | A kind of low separation bonding flash silver powdery paints and preparation method thereof |
| CN108084841A (en) * | 2017-12-04 | 2018-05-29 | 浙江捷宇新材料科技股份有限公司 | A kind of acidproof alkaline simulating golden colour powdery paints and preparation method thereof |
| CN108373765A (en) * | 2018-02-06 | 2018-08-07 | 佛山市南海嘉多彩粉末涂料有限公司 | A kind of bonding metal-effect powder paint |
| CN110540793A (en) * | 2019-10-24 | 2019-12-06 | 江南载福粉末涂料（张家港）有限公司 | High-silver-flashing corrosion-resistant powder coating |
| CN111423791A (en) * | 2020-03-12 | 2020-07-17 | 瀚森新材料(南京)有限公司 | Powder coating with weaving texture effect and metal section bar using same |
| CN114231067A (en) * | 2021-12-28 | 2022-03-25 | 厦门国丽静电粉末有限公司 | Powder coating with good insulating property and preparation method thereof |
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Application publication date: 20151111 |