CN109663716A - A kind of aqueous coating process of powdery paints - Google Patents
A kind of aqueous coating process of powdery paints Download PDFInfo
- Publication number
- CN109663716A CN109663716A CN201811300120.8A CN201811300120A CN109663716A CN 109663716 A CN109663716 A CN 109663716A CN 201811300120 A CN201811300120 A CN 201811300120A CN 109663716 A CN109663716 A CN 109663716A
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- CN
- China
- Prior art keywords
- powdery paints
- aqueous coating
- coating process
- panel
- test plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2508/00—Polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2518/00—Other type of polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2520/00—Water-based dispersions
Abstract
The present invention relates to powder coating technology fields, more specifically, are related to a kind of aqueous coating process of powdery paints, powdery paints and water are uniformly mixed, be painted on test plate (panel) surface, solidify under step temperature.Coating process of the invention is dilution dispersing agent with water, avoids dust pollution, has environment friendly；Aqueous coating process of the invention can be sprayed and can be brushed, and can handle special-shaped workpiece, will not leave behind dead angle, and painting effect is good；Aqueous coating process of the invention is simple, and coating efficiency is high, easily controllable, is conducive to large-scale application.
Description
Technical field
The present invention relates to powder coating technology fields, more specifically, are related to a kind of aqueous coating process of powdery paints.
Background technique
Powdery paints is to be transferred on coated article with powdered, with solid powder paint existing for fine powder through drying
Roasting melting solidifies to the coating of film forming.The performance that powdery paints has film lasting, is greatly favored by consumers.
Powdery paints mainly uses electrostatic powder coating at present, to have atomization nozzle (being atomized coating) and arrester stage (hair
Raw electricity electric current) coating machine make paint particles, to applications charge, electric field is formed between electrode and coated article body, it is sharp
The coating with its electrostatic adsorption.
Electrostatic powder spraying is very big to the harm of construction personnel, even if wearing a gas mask when work, in such ring
Under border long-term work also can inhalation of dust, the tangible danger at pneumoconiosis；And excessively high that there is also dust is quick-fried for dust concentration in environment
Fried risk.In addition, since electrostatic spray is the coating by way of electrification, therefore it is mainly used in the material based on metal substrate
Expect coating, is difficult to use in the coating of other non-conducting materials.
Summary of the invention
The purpose of the present invention is to provide a kind of aqueous coating process of powdery paints that is environmental-friendly, saving raw material.
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of aqueous coating process of powdery paints, comprising the following steps: by powdery paints and water according to mass ratio be 1:(0.6-
1) ratio, addition mass fraction are 0.5-3% defoaming agent, and grinding stirs evenly, by film applicator by the paint spraying in test plate (panel)
On, solidified under step temperature, be cooled to room temperature, the aqueous coating of powdery paints is completed.
Further, the powdery paints includes polyester resin type, epoxide resin type, polyester-epoxy mixed type, polyurethane
Type, propenoic acid paint.
Further, the defoaming agent includes mineral oil antifoam agent, silicone oil emulsion defoaming agent, polyethers defoaming agent.
Further, the step temperature solidifies specifically includes the following steps: the test plate (panel) coated is dried at room temperature for
After 5-8min, dry 5-10min is put into air blast solidification case at 40-90 DEG C；It is continuously heating to 180-200 DEG C of solidification 12-
20min。
Compared with prior art, the advantageous effect of present invention is that:
The present invention provides a kind of aqueous coating process of powdery paints, are dilution dispersing agent with water, avoid dust pollution, have
There is environment friendly；Aqueous coating process of the invention can be sprayed and can be brushed, and can handle special-shaped workpiece, will not leave behind dead angle, coating effect
Fruit is good；Aqueous coating process of the invention is simple, and coating efficiency is high, easily controllable, is conducive to large-scale application.
Detailed description of the invention
Fig. 1 is the weight-loss curve figure of the aqueous coating process of the embodiment of the present invention 1；
Fig. 2 is the test plate (panel) SEM comparison diagram of the different coating process of the embodiment of the present invention 1；
Fig. 3 is the aqueous coating test plate (panel) SEM comparison diagram of the different defoaming agent additive amounts of 2-4 of the embodiment of the present invention；
Fig. 4 is aqueous coating and electrostatic spraying performance comparison in the embodiment of the present invention 1.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of aqueous coating process of powdery paints, comprising the following steps: by powdery paints and water according to mass ratio be 1:
The ratio of (0.6-1), addition mass fraction are 0.5-3% defoaming agent, and grinding stirs evenly, by film applicator by the paint spraying
On test plate (panel), solidified under step temperature, be cooled to room temperature, the aqueous coating of powdery paints is completed.The powdery paints packet
Include polyester resin type, epoxide resin type, polyester-epoxy mixed type, polyurethane-type, propenoic acid paint.The defoaming agent includes
Mineral oil antifoam agent, silicone oil emulsion defoaming agent, polyethers defoaming agent.The step temperature solidification stated will be specifically includes the following steps: will
After the test plate (panel) coated is dried at room temperature for 5-8min, dry 5-10min is put into air blast solidification case at 40-90 DEG C；After of continuing rising
Temperature is to 180-200 DEG C of solidification 12-20min.
Embodiment 1
It takes polyester-epoxy mixed powder coating 20g to be placed in a beaker, is added 14g water (siliceous fat liquor defoaming agent 1.5%), grinds
Mill stirs evenly to arrive aqueous coating process.
The loss on drying curve of the coating is investigated with thermogravimetric, as shown in Figure 1, it can be seen that the drying of coating occurs mainly in
40-90℃。
Coating is in use, pass through film applicator (219 model fixture film applicator of BGD) for the paint spraying with a thickness of 0.3mm
Tinplate on.The aqueous one piece of test plate (panel) installing of applying is directly placed into air blast solidification case in 180 DEG C of solidification 15min, obtain as
Cured aqueous coating test plate (panel) shown in Fig. 2 a；The aqueous another piece of test plate (panel) installed that apply solidifies under step temperature system, specifically
Steps are as follows: the test plate (panel) that will be coated, and is placed on 40 DEG C or so of the dry 8min of environment ventilation；Dried test plate (panel) is placed on 70 DEG C
Air blast solidification case dries 9min；180 DEG C of solidification 15min are warming up to, cured aqueous coating test plate (panel) as shown in Figure 2 b is obtained.It is right
Than finding out, Fig. 2 a SEM figure can be seen that the aqueous coating test plate (panel) of direct hot setting is rough and spininess eye, and Fig. 2 b rank
The aqueous coating test plate (panel) surface of terraced temperature-curable is smooth clean and tidy without obvious pinprick, apparent with electrostatic spraying test plate (panel) shown in Fig. 2 c
Performance does not have significant difference, shows that aqueous coating has feasibility.A is the aqueous coating test plate (panel) SEM of direct hot setting in Fig. 2
Figure, b are the cured aqueous coating test plate (panel) SEM figure of step temperature, and c is electrostatic spraying test plate (panel) SEM figure.
The cured aqueous coating test plate (panel) (Fig. 2 b) of step temperature in embodiment 1 and electrostatic spraying test plate (panel) (Fig. 2 c) are carried out
Main performance comparison mainly includes the detection in terms of coating hardness, adhesive force, glossiness and impact resistance, and test result is such as
Shown in Fig. 4, the two meets the requirement in " thermosetting powder coating chemical industry standard " (HG/T 2006-2006).
Embodiment 2
It takes polyester-epoxy mixed powder coating 20g to be placed in a beaker, 14g water is added, wherein silicone oil emulsion antifoam content is
0%, grinding stirs evenly, and by film applicator, (219 model fixture film applicator of BGD, Guangzhou style are limited up to Laboratory Instruments articles
Company) coating series are painted on respectively on the tinplate with a thickness of 0.3mm, the test plate (panel) coated is dried at room temperature for 5-
After 8min, dry 5-10min is put into air blast solidification case at 40-90 DEG C；It is continuously heating to 180-200 DEG C of solidification 12-
20min is cooled to room temperature and obtains such as coating test plate (panel) in Fig. 3 a.
Embodiment 3
It takes polyester-epoxy mixed powder coating 20g to be placed in a beaker, 14g water is added, wherein silicone oil emulsion antifoam content is
0.5%, grinding stirs evenly, and by film applicator, (219 model fixture film applicator of BGD, Guangzhou style have up to Laboratory Instruments articles
Limit company) coating series are painted on respectively on the tinplate with a thickness of 0.3mm, the test plate (panel) coated is dried at room temperature for 5-
After 8min, dry 5-10min is put into air blast solidification case at 40-90 DEG C；It is continuously heating to 180-200 DEG C of solidification 12-
20min is cooled to room temperature and obtains such as coating test plate (panel) in Fig. 3 b.
Embodiment 4
It takes polyester-epoxy mixed powder coating 20g to be placed in a beaker, 14g water is added, wherein silicone oil emulsion antifoam content is
3%, grinding stirs evenly, and by film applicator, (219 model fixture film applicator of BGD, Guangzhou style are limited up to Laboratory Instruments articles
Company) coating series are painted on respectively on the tinplate with a thickness of 0.3mm, the test plate (panel) coated is dried at room temperature for 5-
After 8min, dry 5-10min is put into air blast solidification case at 40-90 DEG C；It is continuously heating to 180-200 DEG C of solidification 12-
20min is cooled to room temperature and solidifies under the step temperature system of embodiment 1, obtains such as coating test plate (panel) in Fig. 3 c.
The test plate (panel) SEM figure that defoaming agent is not added shown in Fig. 3 a can be seen that apparently there is obvious pin hole, bubble and scratch, and Fig. 3 b
It is smooth with test plate (panel) surface shown in Fig. 3 c, without obvious pin hole.
Only presently preferred embodiments of the present invention is explained in detail above, but the present invention is not limited to above-described embodiment,
Within the knowledge of a person skilled in the art, it can also make without departing from the purpose of the present invention each
Kind variation, various change should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of aqueous coating process of powdery paints, which comprises the following steps: by powdery paints and water according to matter
Amount is 0.5-3% defoaming agent than the ratio for 1:(0.6-1), addition mass fraction, and grinding stirs evenly, should by film applicator
Paint spraying is solidified under step temperature on test plate (panel), is cooled to room temperature, and the aqueous coating of powdery paints is completed.
2. a kind of aqueous coating process of powdery paints according to claim 1, it is characterised in that: the powdery paints packet
Include polyester resin type, epoxide resin type, polyester-epoxy mixed type, polyurethane-type, propenoic acid paint.
3. a kind of aqueous coating process of powdery paints according to claim 1, it is characterised in that: the defoaming agent includes
Mineral oil antifoam agent, silicone oil emulsion defoaming agent, polyethers defoaming agent.
4. a kind of aqueous coating process of powdery paints according to claim 1, which is characterized in that the step temperature
After solidifying specifically includes the following steps: the test plate (panel) coated is dried at room temperature for 5-8min, it is put into air blast solidification case in 40-90
Dry 5-10min at DEG C；It is continuously heating to 180-200 DEG C of solidification 12-20min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811300120.8A CN109663716A (en) | 2018-11-02 | 2018-11-02 | A kind of aqueous coating process of powdery paints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811300120.8A CN109663716A (en) | 2018-11-02 | 2018-11-02 | A kind of aqueous coating process of powdery paints |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109663716A true CN109663716A (en) | 2019-04-23 |
Family
ID=66141805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811300120.8A Pending CN109663716A (en) | 2018-11-02 | 2018-11-02 | A kind of aqueous coating process of powdery paints |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109663716A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112778890A (en) * | 2020-12-30 | 2021-05-11 | 江苏变色龙微粉技术有限公司 | Water-based base material, water-based paint and powder coating repairing method |
| CN112778891A (en) * | 2020-12-30 | 2021-05-11 | 江苏变色龙微粉技术有限公司 | Aqueous base material, aqueous coating material and coating method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1202914A (en) * | 1995-11-03 | 1998-12-23 | 巴斯福涂料股份公司 | Aqueous powder paint dispersions |
| CN1450131A (en) * | 2003-04-24 | 2003-10-22 | 武汉材料保护研究所 | Heating protection coating for desalling of alloy steel |
| CN1777655A (en) * | 2003-03-26 | 2006-05-24 | 阿托特希德国有限公司 | Powder coating and process for the preparation of thin layers in the manufacture of printed circuit boards |
| US20070231580A1 (en) * | 2006-03-30 | 2007-10-04 | Martin Louis Holliday | Process for the preparation of powder coatings on heat-sensitive substrates |
| US20100203329A1 (en) * | 2001-06-04 | 2010-08-12 | Adzima Leonard J | Powder coated roving for making structural composites |
| CN103483895A (en) * | 2013-08-26 | 2014-01-01 | 广州擎天材料科技有限公司 | Powder paint capable of increasing coating rate for dead angle of metal workpiece and preparation method of powder paint |
| CN105797929A (en) * | 2016-04-07 | 2016-07-27 | 太仓吉达喷涂有限公司 | Coating method for multifunctional water-based metallized coating |
| US20180273770A1 (en) * | 2017-03-21 | 2018-09-27 | Fuji Xerox Co., Ltd. | Powdered paint and electrostatic powder coating method |
-
2018
- 2018-11-02 CN CN201811300120.8A patent/CN109663716A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1202914A (en) * | 1995-11-03 | 1998-12-23 | 巴斯福涂料股份公司 | Aqueous powder paint dispersions |
| US20100203329A1 (en) * | 2001-06-04 | 2010-08-12 | Adzima Leonard J | Powder coated roving for making structural composites |
| CN1777655A (en) * | 2003-03-26 | 2006-05-24 | 阿托特希德国有限公司 | Powder coating and process for the preparation of thin layers in the manufacture of printed circuit boards |
| CN1450131A (en) * | 2003-04-24 | 2003-10-22 | 武汉材料保护研究所 | Heating protection coating for desalling of alloy steel |
| US20070231580A1 (en) * | 2006-03-30 | 2007-10-04 | Martin Louis Holliday | Process for the preparation of powder coatings on heat-sensitive substrates |
| CN103483895A (en) * | 2013-08-26 | 2014-01-01 | 广州擎天材料科技有限公司 | Powder paint capable of increasing coating rate for dead angle of metal workpiece and preparation method of powder paint |
| CN105797929A (en) * | 2016-04-07 | 2016-07-27 | 太仓吉达喷涂有限公司 | Coating method for multifunctional water-based metallized coating |
| US20180273770A1 (en) * | 2017-03-21 | 2018-09-27 | Fuji Xerox Co., Ltd. | Powdered paint and electrostatic powder coating method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112778890A (en) * | 2020-12-30 | 2021-05-11 | 江苏变色龙微粉技术有限公司 | Water-based base material, water-based paint and powder coating repairing method |
| CN112778891A (en) * | 2020-12-30 | 2021-05-11 | 江苏变色龙微粉技术有限公司 | Aqueous base material, aqueous coating material and coating method |
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