CN112574651A - High-dyne-value baking varnish powder, preparation method thereof and baking varnish process - Google Patents
High-dyne-value baking varnish powder, preparation method thereof and baking varnish process Download PDFInfo
- Publication number
- CN112574651A CN112574651A CN202011364006.9A CN202011364006A CN112574651A CN 112574651 A CN112574651 A CN 112574651A CN 202011364006 A CN202011364006 A CN 202011364006A CN 112574651 A CN112574651 A CN 112574651A
- Authority
- CN
- China
- Prior art keywords
- powder
- percent
- baking varnish
- baking
- dyne
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a high-dyne-value baking varnish powder and a preparation method thereof, wherein the baking varnish powder comprises the following raw materials in percentage by mass: 28 to 32 percent of polyester resin, 28 to 32 percent of epoxy resin, 0.8 to 1.2 percent of flatting agent, 0.4 to 0.6 percent of brightener, 0.3 to 0.5 percent of benzoin, 1.8 to 2.6 percent of flatting agent, 28 to 32 percent of titanium dioxide, 3.4 to 4.4 percent of barium sulfate and 1.8 to 2.2 percent of modified acrylic acid. The high-dyne value baking varnish powder can improve the dyne value of a baking varnish layer, so that the surface tension of the baking varnish layer is improved, glue can be adhered to the baking varnish layer after being hydrated, and the problems that the adhesion between plates with the baking varnish layer cannot be realized due to the fact that the dyne value of the traditional baking varnish powder is low, the glue is difficult to adhere to the baking varnish layer, the device cost is high due to the fact that the plasma device is adopted to spray and damage the baking varnish layer structure, and the production cost is overhigh are solved.
Description
Technical Field
The invention relates to the technical field of powder formula, in particular to high-dyne-value baking varnish powder, a preparation method thereof and a baking varnish process.
Background
The baking finish technology is a paint spraying process in furniture manufacturing industry, and is mainly a process of spraying powder on metal polished to a certain roughness degree and baking and shaping at high temperature.
In the manufacturing process of furniture, glue is required to be coated on furniture plates after baking finish treatment, the adhesion between the plates is realized by utilizing the adhesion performance of the glue, or the plates and wood are adhered to form a clamping plate with high thickness and bearing capacity, and the adhesion of the baking finish layer of the glue and the plates is poor and the plates are easy to fall off because the Dyne value of most of powder manufactured by the traditional baking finish formula is about 30Dyne, so that the plates cannot be glued and assembled, and can fall off quickly even if the plates are barely glued. The surface structure of the baking paint layer is damaged through plasma spraying equipment, the roughness of glue adhesion is met, the purpose of splicing furniture through gluing plates can be achieved, equipment cost is high, investment is large, and high production cost is caused.
Therefore, there is a need to develop a baking varnish layer powder with improved surface tension and stable high dyne value, a preparation method thereof and a baking varnish process, which can solve the above technical problems.
Disclosure of Invention
The invention aims to provide high-dyne-value baking varnish powder, a preparation method thereof and a baking varnish process, which are used for solving the problems that the traditional baking varnish powder is low in dyne value, glue is difficult to adhere to a baking varnish layer, adhesion between plates with the baking varnish layer cannot be realized, the equipment cost is high due to the fact that a plasma equipment is adopted to spray and damage the baking varnish layer structure, and the production cost is overhigh.
In order to achieve the purpose, the invention provides high-dyne-value baking varnish powder and a preparation method thereof, and the specific embodiment is as follows:
the baking varnish powder with the high dyne value comprises the following raw materials in percentage by mass:
28 to 32 percent of polyester resin, 28 to 32 percent of epoxy resin, 0.8 to 1.2 percent of flatting agent, 0.4 to 0.6 percent of brightener, 0.3 to 0.5 percent of benzoin, 1.8 to 2.6 percent of flatting agent, 28 to 32 percent of titanium dioxide, 3.4 to 4.4 percent of barium sulfate and 1.8 to 2.2 percent of modified acrylic acid.
As a further improvement of the invention, the leveling agent is a mixture of 34% of fumed silica and 66% of methacrylate copolymer.
As a further improvement of the invention, the matting agent is a mixture of 60% of a hydroxy acrylic resin, 12% of dimercaptothiazolzincate and 28% of zinc stearate.
As a further improvement of the invention, the brightener is a mixture of methacrylic acid and acrylic resin copolymer.
A preparation method of high-dyne-value baking varnish powder comprises the following steps:
(1) respectively putting polyester resin, epoxy resin, a flatting agent, a brightening agent, benzoin, a flatting agent, titanium dioxide, barium sulfate and modified acrylic acid into a weighing device to weigh the mixture ratio within the weight ratio range;
(2) putting the weighed components in the step (1) into a turnover mixer, and uniformly stirring and mixing;
(3) putting the composition mixed in the step (2) into a double-screw extruder, and compressing and plasticizing the composition into a plasticized material;
(4) conveying the plasticized material subjected to compression plasticizing molding in the step (3) into a cooling water tank for cooling treatment;
(5) putting the plasticized material cooled in the step (4) into a roller crusher for crushing treatment to obtain a plasticized material packaged in particles;
(6) and (5) putting the particle converted plastic substance in the step (5) into a grinder to grind to obtain uniform powder.
As a further improvement of the invention, the rotation speed of the turnover mixer during mixing is 1200rpm/180 seconds.
As a further improvement of the invention, the twin-screw extruder is a four-temperature-zone twin-screw extruder, and the extrusion temperature of each temperature zone is 95 ℃, 105 ℃ and 50 ℃.
Further, the extrusion revolution of the twin-screw extruder was 450rpm, and the feeding revolution was 70 rpm.
As a further improvement of the invention, the grinder is a double-grinding disc grinder, the rotation speed of the main grinding disc is 104m/s, and the rotation speed of the auxiliary grinding disc is 26 m/s.
A powder paint baking process comprises the following steps of hanging, pre-treating, spraying powder, curing and hanging, and comprises the following specific steps:
(1) hanging: hanging the plate on a hook, a hanging rod or a clamp which is arranged in the baking varnish cavity;
(2) pretreatment: the method comprises the following steps of deoiling, washing, derusting, neutralizing, washing, surface conditioning, phosphating, washing, drying and coating the plate.
(3) Powder spraying: spraying the baking varnish powder in the board pretreated in the step (2) to ensure that the baking varnish powder is uniformly attached to the board;
(4) and (3) curing: baking and curing the plate in the step (3) at a high temperature to form a baking paint layer on the plate;
(5) hanging: and (4) taking the plate in the step (4) out of the hook, the hanging rod or the clamp in the paint baking chamber.
At present, the Dyne value of baking varnish powder prepared by the existing formula is about 30Dyne, so that the powder is attached to furniture plates by spraying, then the baking varnish layer after being baked and shaped at high temperature is subjected to surface tension cross-priming, and when glue is attached to the plates for gluing and assembling, the glue is not firmly attached due to the surface tension difference of the baking varnish layer, so that the gluing and assembling of the baking varnish plates cannot be realized.
In order to solve the problems, the enterprise scans the surface of the plate by adopting plasma equipment, destroys the surface structure of the baking paint layer and increases the roughness of the baking paint layer, so that glue can be firmly attached to the surface of the baking paint layer, the manufacturing cost of the plasma scanning equipment is high, the manufacturing cost of furniture is increased, and the large-scale production of products is not facilitated.
Compared with the prior art, the high-Dyne-value baking varnish powder and the preparation method thereof have the advantages that modified acrylic acid is added in the baking varnish powder formula as a tension auxiliary agent, the proportion of main components such as polyester resin, epoxy resin, barium sulfate and the like is adjusted, the original characteristics of the powder can be kept, the Dyne value of the powder after baking varnish treatment is increased to 32Dyne-34Dyne, the surface tension is improved, glue can be firmly glued on the baking varnish powder layer of a plate, the plasma scanning procedure before painting is reduced, the production efficiency is improved, the equipment investment is reduced, and the production cost is reduced.
Drawings
FIG. 1 is a flow chart of the powder preparation method of the present invention;
FIG. 2 is a flow chart of the baking finish process of the present invention;
FIG. 3 is a dyne value test chart of the baking varnish powder of the present invention and the conventional baking varnish powder.
Detailed Description
The invention relates to a high-dyne-value baking varnish powder, a preparation method thereof and a baking varnish process, which are described by combining with the accompanying drawing.
The baking varnish powder with the high dyne value comprises the following raw materials in percentage by mass:
28 to 32 percent of polyester resin, 28 to 32 percent of epoxy resin, 0.8 to 1.2 percent of flatting agent, 0.4 to 0.6 percent of brightener, 0.3 to 0.5 percent of benzoin, 1.8 to 2.6 percent of flatting agent, 28 to 32 percent of titanium dioxide, 3.4 to 4.4 percent of barium sulfate and 1.8 to 2.2 percent of modified acrylic acid.
Wherein the leveling agent is a mixture consisting of 34% of fumed silica and 66% of methacrylate copolymer.
Wherein the flatting agent is a mixture consisting of 60% of hydroxy acrylic resin, 12% of dimercaptothiazole zincate and 28% of zinc stearate.
Wherein the brightening agent is a mixture of methacrylic acid and acrylic resin copolymer.
Wherein the benzoin is benzoin, and the CAS number is as follows: 119-53-9.
Wherein the epoxy resin CAS number is: 25036-25-3.
Example 1
The high-dyne-value baking varnish powder comprises the following components in percentage by weight:
referring to fig. 1, example 1 was prepared as follows:
(1) respectively putting polyester resin, epoxy resin, a flatting agent, a brightening agent, benzoin, a flatting agent, titanium dioxide, barium sulfate and modified acrylic acid into a weighing machine, and weighing to obtain components in weight ratio;
(2) putting the weighed components in the step (1) into a turnover mixer, and uniformly stirring and mixing;
(3) putting the composition mixed in the step (2) into a double-screw extruder, and compressing and plasticizing the composition into a plasticized material;
(4) conveying the plasticized material subjected to compression plasticizing molding in the step (3) into a cooling water tank for cooling treatment;
(5) putting the plasticized material cooled in the step (4) into a roller crusher for crushing treatment to obtain a plasticized material packaged in particles;
(6) and (5) putting the particle converted plastic substance in the step (5) into a grinder to grind to obtain uniform powder.
Wherein the rotation speed of the turnover type mixer during mixing is 1200rpm/180 seconds.
The double-screw extruder is a four-temperature-zone double-screw extruder, and the extrusion temperature of each temperature zone is 95 ℃, 105 ℃ and 50 ℃.
Further, the extrusion revolution of the twin-screw extruder was 450rpm, and the feeding revolution was 70 rpm.
The grinding machine is a double-millstone grinding machine, the rotating speed of a main millstone is 104m/s, and the rotating speed of an auxiliary millstone is 26 m/s.
Example 2
The preparation method is the same as that of example 1
Comparative example 1
The high-dyne-value baking varnish powder comprises the following components in percentage by weight:
the preparation method comprises the following steps:
(1) respectively putting polyester resin, epoxy resin, a flatting agent, a brightening agent, benzoin, a delustering agent, titanium dioxide and barium sulfate into a weighing machine, and weighing to obtain components in weight ratio;
(2) putting the weighed components in the step (1) into a turnover mixer, and uniformly stirring and mixing;
(3) putting the composition mixed in the step (2) into a double-screw extruder, and compressing and plasticizing the composition into a plasticized material;
(4) conveying the plasticized material subjected to compression plasticizing molding in the step (3) into a cooling water tank for cooling treatment;
(5) putting the plasticized material cooled in the step (4) into a roller crusher for crushing treatment to obtain a plasticized material packaged in particles;
(6) and (5) putting the particle converted plastic substance in the step (5) into a grinder to grind to obtain uniform powder.
Wherein the rotation speed of the turnover type mixer during mixing is 1200rpm/180 seconds.
The double-screw extruder is a four-temperature-zone double-screw extruder, and the extrusion temperature of each temperature zone is 95 ℃, 105 ℃ and 50 ℃.
Further, the extrusion revolution of the twin-screw extruder was 450rpm, and the feeding revolution was 70 rpm.
The grinding machine is a double-millstone grinding machine, the rotating speed of a main millstone is 104m/s, and the rotating speed of an auxiliary millstone is 26 m/s.
Referring to fig. 2, the powder manufactured in example 1, example 2 and comparative example 1 is subjected to a baking finish treatment on a board by using the same baking finish process, and comprises the following steps:
(1) hanging: hanging the plate on a hook, a hanging rod or a clamp which is arranged in the baking varnish cavity;
(2) pretreatment: the method comprises the following steps of (1) carrying out oil removal, water washing, rust removal, neutralization, water washing, surface conditioning, phosphating, water washing, drying, coating and the like on a plate;
(3) powder spraying: spraying the baking varnish powder obtained in the embodiment 1 on the board pretreated in the step (2) so that the baking varnish powder is uniformly attached to the board;
(4) and (3) curing: baking and curing the plate in the step (3) at a high temperature to form a baking paint layer on the plate;
(5) hanging: and (4) taking the plate in the step (4) out of the hook, the hanging rod or the clamp in the paint baking chamber.
1dyne value test of plate baking varnish layer
1.1 test subjects
Sheets using the powder stoving varnish prepared in example 1 and comparative example 1
1.2 test procedure
Marking off the baking varnish layer of the plate by adopting a dyne pen
The process comprises the following steps: pen for determining dyne
Dyne value test of baking varnish layer
Analysis of results
(1) Determining a dyne pen: the experimental plate is marked by a dyne pen with a dyne value from low to high, the marking is a uniform continuous line with the length of 20-40cm, and the line is changed into a water bead (spherical shape) within 2 seconds until the marking is changed, so that the dyne pen used in the last test is the dyne pen suitable for the dyne value of the plate baking finish layer.
(2) And (3) testing the dyne value of the baking varnish layer: and respectively marking lines on the upper part, the middle part and the lower part of the experimental plate at different positions of the baking paint layer of the plate by using the determined dyne pens with the same dyne value, wherein the marking lines are uniform continuous lines with the length of 20-40 cm.
(3) And (4) analyzing results:
1. a uniform continuous line indicating that the dyne value of the baking varnish layer has reached or is higher than the dyne value of the dyne pen;
2. forming droplets (poor or no wetting) indicating that the dyne value of the bake coat layer is lower than the dyne value of the dyne pen;
3. ink diffusion, meaning that the dyne value of the baked lacquer layer is much higher than that of the dyne pen.
1.3 test results
As can be seen from Table 1, the Dyne value of each plate was maintained in the range of 31 + -1 Dyne when the powder of comparative example 1 was used for baking finish, and the Dyne value of each plate was maintained in the range of 33 + -1 Dyne when the powder of example 1 was used for baking finish, the powder of example 1 had a higher Dyne value than the powder of comparative example 1, and the tension in the surface of the baking finish layer when the powder of example 1 was used for baking finish was greater, facilitating the hinging of glue on the baking finish layer.
Table 1dyne pen test data
Where, + represents an error range of positive 2.
Referring to fig. 3, the left side is a panel that was baked with the powder of comparative example 1 and the right side is a panel that was baked with the powder of example 1.
Adopting a Dyne pen with a Dyne value of 34Dyne to scribe the plate, and adopting the powder of comparative example 1 to carry out fast shrinkage on lines on the plate to form drop-shaped water beads, wherein the Dyne value of a baking varnish layer on the surface of the plate is less than that of the Dyne pen; the lines on the panel painted with the powder of example 1 were uniform and continuous, indicating that the dyne value of the paint layer on the panel surface reached or exceeded the dyne value of the dyne pen.
It can be seen that the surface tension of the baked paint layer baked with the powder of example 1 was greater than that of the baked paint layer baked with the powder of comparative example 1.
The test result shows that the addition of the modified acrylic acid in the formula of the powder plays a role in increasing the dyne value of the powder, so that the surface tension of the baking paint layer prepared from the powder baking paint is improved, and the glue can be firmly adsorbed.
According to the high-Dyne-value baking varnish powder, the preparation method and the baking varnish process, modified acrylic acid is added in the baking varnish powder formula to serve as a tension auxiliary agent, the proportion of main components such as polyester resin, epoxy resin and barium sulfate is adjusted, the original characteristics of the powder can be kept, the Dyne value of the powder after baking varnish treatment can be increased to reach the range of 32Dyne-34Dyne, and the surface tension is improved. The problem of traditional baking finish powder dyne value low for glue is difficult to bond on the baking finish layer, can't realize the bonding between the panel that possesses the baking finish layer, and the mode that adopts plasma equipment spraying to destroy the baking finish layer structure equipment cost is high, leads to manufacturing cost too high is effectively solved.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. The high-dyne-value baking varnish powder is characterized by comprising the following raw materials in percentage by mass:
28 to 32 percent of polyester resin, 28 to 32 percent of epoxy resin, 0.8 to 1.2 percent of flatting agent, 0.4 to 0.6 percent of brightener, 0.3 to 0.5 percent of benzoin, 1.8 to 2.6 percent of flatting agent, 28 to 32 percent of titanium dioxide, 3.4 to 4.4 percent of barium sulfate and 1.8 to 2.2 percent of modified acrylic acid.
2. The high-dyne-value baking varnish powder body as claimed in claim 1, wherein the leveling agent is a mixture consisting of 34% of fumed silica and 66% of methacrylate copolymer.
3. The high-dyne baking varnish powder of claim 1, wherein the flatting agent is a mixture of 60% of hydroxy acrylic resin, 12% of dimercaptothiazolzincate and 28% of zinc stearate.
4. The high dyne-number baking varnish powder of claim 1, wherein the brightener is a mixture of methacrylic acid and acrylic resin copolymer.
5. The method for preparing high-dyne-value baking varnish powder according to claim 1, characterized by comprising the following steps:
(1) respectively putting polyester resin, epoxy resin, a flatting agent, a brightening agent, benzoin, a flatting agent, titanium dioxide, barium sulfate and modified acrylic acid into a weighing device to weigh the mixture ratio within the weight ratio range;
(2) putting the weighed components in the step (1) into a turnover mixer, and uniformly stirring and mixing;
(3) putting the composition mixed in the step (2) into a double-screw extruder, and compressing and plasticizing the composition into a plasticized material;
(4) conveying the plasticized material subjected to compression plasticizing molding in the step (3) into a cooling water tank for cooling treatment;
(5) putting the plasticized material cooled in the step (4) into a roller crusher for crushing treatment to obtain a plasticized material packaged in particles;
(6) and (5) putting the particle converted plastic substance in the step (5) into a grinder to grind to obtain uniform powder.
6. The method of claim 5, wherein the rotation speed of the tumbling mixer is 1200rpm/180 seconds at the time of mixing.
7. The method according to claim 5, wherein the twin-screw extruder is a four-temperature zone twin-screw extruder, and the extrusion temperature in each temperature zone is 95 degrees Celsius, 105 degrees Celsius, and 50 degrees Celsius, respectively.
8. The method of claim 7, wherein the twin-screw extruder has an extrusion revolution of 450rpm and a feeding revolution of 70 rpm.
9. The method according to claim 5, wherein the mill is a double-disc mill, the rotation speed of the main disc is 104m/s, and the rotation speed of the auxiliary disc is 26 m/s.
10. The powder baking finish process according to claim 1, comprising hanging up, pre-treating, spraying powder, curing and hanging down, and the specific steps are as follows:
(1) hanging: hanging the plate on a hook, a hanging rod or a clamp which is arranged in the baking varnish cavity;
(2) pretreatment: the method comprises the following steps of deoiling, washing, derusting, neutralizing, washing, surface conditioning, phosphating, washing, drying and coating the plate.
(3) Powder spraying: spraying the baking varnish powder in the board pretreated in the step (2) to ensure that the baking varnish powder is uniformly attached to the board;
(4) and (3) curing: baking and curing the plate in the step (3) at a high temperature to form a baking paint layer on the plate;
(5) hanging: and (4) taking the plate in the step (4) out of the hook, the hanging rod or the clamp in the paint baking chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011364006.9A CN112574651A (en) | 2020-11-27 | 2020-11-27 | High-dyne-value baking varnish powder, preparation method thereof and baking varnish process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011364006.9A CN112574651A (en) | 2020-11-27 | 2020-11-27 | High-dyne-value baking varnish powder, preparation method thereof and baking varnish process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112574651A true CN112574651A (en) | 2021-03-30 |
Family
ID=75123959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011364006.9A Pending CN112574651A (en) | 2020-11-27 | 2020-11-27 | High-dyne-value baking varnish powder, preparation method thereof and baking varnish process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112574651A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080003368A1 (en) * | 2003-05-19 | 2008-01-03 | Basf Corporation | Particulate coatings having improved chip resistance, uv durability, and color stability |
| CN103160185A (en) * | 2013-02-22 | 2013-06-19 | 安徽华辉塑业科技有限公司 | Matte epoxy/ polyester powder coating and preparation method thereof |
| CN105419584A (en) * | 2015-12-25 | 2016-03-23 | 哈尔滨市南岗区鑫马建材商店 | Polyester powder coating having high stability and preparation method |
| CN105925144A (en) * | 2016-06-30 | 2016-09-07 | 高海燕 | Low-temperature-curing powder paint and preparation method thereof |
| EP3192841A1 (en) * | 2016-01-15 | 2017-07-19 | PPG Industries Ohio, Inc. | A thermoset coating composition comprising a thermoset resin and a thermoplastic resin |
| CN107353822A (en) * | 2017-07-27 | 2017-11-17 | 深圳市联星服装辅料有限公司 | A kind of water-based stoving paint and its baking finish process for clothes metal button |
| CN108504254A (en) * | 2018-05-11 | 2018-09-07 | 佛山市上利丰装饰材料有限公司 | The preparation method of powdery paints for plastic wood sheet surface |
| CN108976987A (en) * | 2018-06-28 | 2018-12-11 | 江苏华光新材料科技有限公司 | Hydrophobic anti-corrosive powder paint and preparation method thereof |
| CN110819214A (en) * | 2018-08-09 | 2020-02-21 | 山东瑞丰高分子材料股份有限公司燕崖分公司 | Preparation method of ultralow-temperature fast-curing powder coating resin for medium-density board |
| CN111303730A (en) * | 2020-02-17 | 2020-06-19 | 安徽华辉塑业科技股份有限公司 | Weather-resistant strong antistatic powder coating on high-speed rail and preparation method thereof |
| CN111748267A (en) * | 2020-07-14 | 2020-10-09 | 福州环宇工艺品有限公司 | Enamel-like paint and preparation method of enamel-like product |
| CN111849316A (en) * | 2020-08-12 | 2020-10-30 | 湖南连心科技有限公司 | Heat-storage-resistant powder coating and preparation method thereof |
-
2020
- 2020-11-27 CN CN202011364006.9A patent/CN112574651A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080003368A1 (en) * | 2003-05-19 | 2008-01-03 | Basf Corporation | Particulate coatings having improved chip resistance, uv durability, and color stability |
| CN103160185A (en) * | 2013-02-22 | 2013-06-19 | 安徽华辉塑业科技有限公司 | Matte epoxy/ polyester powder coating and preparation method thereof |
| CN105419584A (en) * | 2015-12-25 | 2016-03-23 | 哈尔滨市南岗区鑫马建材商店 | Polyester powder coating having high stability and preparation method |
| EP3192841A1 (en) * | 2016-01-15 | 2017-07-19 | PPG Industries Ohio, Inc. | A thermoset coating composition comprising a thermoset resin and a thermoplastic resin |
| CN105925144A (en) * | 2016-06-30 | 2016-09-07 | 高海燕 | Low-temperature-curing powder paint and preparation method thereof |
| CN107353822A (en) * | 2017-07-27 | 2017-11-17 | 深圳市联星服装辅料有限公司 | A kind of water-based stoving paint and its baking finish process for clothes metal button |
| CN108504254A (en) * | 2018-05-11 | 2018-09-07 | 佛山市上利丰装饰材料有限公司 | The preparation method of powdery paints for plastic wood sheet surface |
| CN108976987A (en) * | 2018-06-28 | 2018-12-11 | 江苏华光新材料科技有限公司 | Hydrophobic anti-corrosive powder paint and preparation method thereof |
| CN110819214A (en) * | 2018-08-09 | 2020-02-21 | 山东瑞丰高分子材料股份有限公司燕崖分公司 | Preparation method of ultralow-temperature fast-curing powder coating resin for medium-density board |
| CN111303730A (en) * | 2020-02-17 | 2020-06-19 | 安徽华辉塑业科技股份有限公司 | Weather-resistant strong antistatic powder coating on high-speed rail and preparation method thereof |
| CN111748267A (en) * | 2020-07-14 | 2020-10-09 | 福州环宇工艺品有限公司 | Enamel-like paint and preparation method of enamel-like product |
| CN111849316A (en) * | 2020-08-12 | 2020-10-30 | 湖南连心科技有限公司 | Heat-storage-resistant powder coating and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100423439B1 (en) | Anti finger resin solution and method for manufacturing anti finger steel sheet using the solution | |
| JP5106855B2 (en) | Modified powder, liquid composition containing the modified powder, molded article, and method for producing modified powder | |
| US9186812B2 (en) | Fiber composite manufacturing system with anti-bonding coatings | |
| CN105234850A (en) | Abrasive paper production process and coating adhesive formula | |
| CN106566472B (en) | A kind of Preparation method and use of abrasive air Jet Polishing amino film plastics abrasive material | |
| CN101284959A (en) | Atomic ash special for wood decoration | |
| CN112157601B (en) | Flexible polishing leather for grinding mobile phone glass and preparation process and application thereof | |
| KR20150035989A (en) | Process for manufacturing a filled polymeric materials with modified filler particles | |
| CN107571165B (en) | A kind of ceramic microcrystalline corundum vulcan fibre coated abrasive tool and its manufacturing method | |
| CN112574651A (en) | High-dyne-value baking varnish powder, preparation method thereof and baking varnish process | |
| TW201823031A (en) | Low-gloss sheet and molded product thereof meeting a requirement for low gloss even if a molding process has been conducted | |
| KR20150035988A (en) | Process for manufacturing coated filler particles | |
| Akhtarkhavari et al. | Adhesion and durability of latex paint on wood fiber reinforced polyethylene | |
| CN106670009B (en) | Method and device for coating liquid adhesive on surfaces of rubber particles | |
| CN110370694A (en) | A kind of production technology of seamless rubber ball | |
| CN114106617B (en) | Putty for vehicles and preparation method and application thereof | |
| CN110982386B (en) | Toughened and hardened epoxy resin powder anticorrosive paint and preparation method thereof | |
| CN109294413A (en) | A kind of door and window aluminium section bar surface powder electrostatic coating method | |
| CN108264825A (en) | The preparation method of the impact resistance powdery paints of aluminum products | |
| CN105797941A (en) | After-treatment method of added material manufacturing nylon part | |
| CN112300671A (en) | High-friction-coefficient powder coating and preparation method thereof | |
| CN105602419A (en) | Artistic powder coating with stripe effect and preparation method thereof | |
| CN107177227B (en) | UV putty, preparation method thereof and application of UV putty in spraying of wood powder coating | |
| CN110304861A (en) | A kind of quartz of high compactness and preparation method thereof | |
| CN105017888A (en) | Universal plastic primer for automobile and preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210330 |