CN103694812A - PVDF (Polyvinylidene Fluoride) fluorocarbon powder coating and preparation method thereof - Google Patents
PVDF (Polyvinylidene Fluoride) fluorocarbon powder coating and preparation method thereof Download PDFInfo
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- CN103694812A CN103694812A CN201310681612.7A CN201310681612A CN103694812A CN 103694812 A CN103694812 A CN 103694812A CN 201310681612 A CN201310681612 A CN 201310681612A CN 103694812 A CN103694812 A CN 103694812A
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Abstract
The invention relates to a PVDF (Polyvinylidene Fluoride) fluorocarbon powder coating and a preparation method thereof. The coating is prepared from the following raw materials: 50-80 parts of PVDF resin, 2-10 parts of epoxy resin, 2-10 parts of acrylic resin, 10-20 parts of inorganic pigment, 1-2 parts of benzoin, 1-3 parts of a flatting agent, 1-2 parts of an adhesion promoter, 1-3 parts of fluororubber and 1-5 parts of boric acid. The preparation method comprises the steps: tabletting after fusing and mixing the raw materials; then, crushing the obtained tablets into particles with the diameters of 0.5-1.5cm; next, placing the particles into a target jet mill and milling finely; and screening to obtain particles with particle sizes of less than or equal to 30 microns, thus obtaining the finished product of the PVDF fluorocarbon powder coating. The preparation method disclosed by the invention is low in fusing and mixing temperatures and free of solvents so as to achieve energy-saving and environment-friendly effects; the defect that fluorocarbon resin is not easy to crush is overcome by using the target jet mill.
Description
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Technical field
The invention belongs to coatings industry field, particularly a kind of PVDF fluorocarbon powder paint and preparation method thereof.
Background technology
PVDF is poly(vinylidene fluoride), PVDF fluorocarbon coating is the top product in metal current building coats, there is the most permanent confirmed weather resistance, and there is excellent resist chemical performance and excellent mechanical property, what nearly all senior metal building was all used is all fluororine-carbon coating.But current prevailing fluorocarbon coating is liquid, in prior art, also there is the research of PVDF fluorocarbon powder paint to be in the news out, for example, in the Chinese invention patent application that application number is 201010612222.0 PVDF is suspended in solvent, then by underpressure distillation, remove desolventizing and obtain PVDF powder coating; Application number is in 200910052569.1 Chinese invention patent application, PVDF to be suspended in solvent, then by the dry PVDF powder coating that obtains of spraying; But these class methods have still been used organic solvent in process of production, inevitably pollution on the environment also can consume a large amount of energy in the process that reclaims solvent.
Summary of the invention
The technical problem to be solved in the present invention is: PVDF fluorocarbon powder paint provide in a kind of preparation process not with an organic solvent, energy consumption being lower and preparation method thereof.
For solving the problems of the technologies described above, the invention provides following technical scheme:
A PVDF fluorocarbon powder paint, is comprised of following raw materials according:
PVDF resin 50-80 part;
Epoxy resin 2-10 part;
Acrylic resin 2-10 part;
Mineral dye 10-20 part;
St-yrax 1-2 part;
Flow agent 1-3 part;
Adhesion promoter 1-2 part;
Viton 1-3 part;
Boric acid 1-5 part.
Preferably, PVDF fluorocarbon powder paint of the present invention, is comprised of following raw materials according:
PVDF resin 60-80 part;
Epoxy resin 2-10 part;
Acrylic resin 2-10 part;
Mineral dye 15-20 part;
St-yrax 1-2 part;
Flow agent 1-3 part;
Adhesion promoter 1-2 part;
Viton 1-3 part;
Boric acid 1-3 part.
The present invention also provides a kind of preparation method of PVDF fluorocarbon powder paint, after comprising the steps: raw materials melt to mix, carry out compressing tablet, then be broken into the particle of diameter 0.5-1.5cm, particle is put into target formula airflow milling again and beaten carefully, the particle that screening obtains particle diameter≤30 μ m obtains finished product PVDF fluorocarbon powder paint.
Preferably, the temperature that described raw materials melt is mixed is between 100-120 ℃.
Preferably, the particle diameter of described finished product PVDF fluorocarbon powder paint is between 15-30 μ m.
Beneficial effect of the present invention is in formula, to have added boric acid, makes the melt mix temperature of PVDF fluorocarbon powder paint be reduced to 100-120 ℃ from original 240-260 ℃, has realized at a lower temperature the even mixing of raw material; In production process, need not use solvent, very environmental protection completely; Adopt target formula airflow milling to substitute pulverizer, overcome fluorocarbon resin and be difficult for the defect of pulverizing.
Embodiment
Embodiment 1
In container, add 60 kilograms of PVDF resins, 5 kilograms of epoxy resin E12; 5 kilograms of acrylic resins; 15 kilograms of titanium dioxides; 1 kilogram of st-yrax; 2 kilograms of Bi Ke BYK-307 flow agents; 1 kilogram of Germany Bi Ke BYK-4510 adhesion promoter; 1 kilogram of 2 kilograms of fluororubber 246s and boric acid, raw material is after 120 ℃ of left and right melting mixing, carry out compressing tablet, then be broken into the particle of diameter 0.5-1.5cm, particle being put into the KSBR-200 type target formula airflow milling of Chengdu Kun Sen micro-nano Science and Technology Ltd. production beats carefully again, the particle that screening obtains particle diameter≤30 μ m obtains finished product PVDF fluorocarbon powder paint, and performance test is as shown in table 1:
The fluorocarbon powder paint film performance table with test results of table 1. embodiment 1
This powder coating adopts electrostatic gun, is applied to metallic surface, and through 240 ℃ of bakings in 10 minutes, gained coating is carried out salt-fog resistant test and reached 5000 hours (JIS K5400-9.1), and resistance to 10% hydrochloric acid has no adverse reaction for 20 minutes.
Embodiment 2
In container, add 65 kilograms of PVDF resins, 5 kilograms of epoxy resin E14; 5 kilograms of acrylic resins; 18 kilograms of cobalt greens; 1 kilogram of st-yrax; 2 kilograms of Bi Ke BYK-310 flow agents; 1 kilogram of Germany Bi Ke BYK-4510 adhesion promoter; 2 kilograms of 3 kilograms of fluororubber 26s and boric acid, raw material is after 110 ℃ of left and right melting mixing, carry out compressing tablet, then be broken into the particle of diameter 1-1.5cm, particle being put into target formula airflow milling beats carefully again, screening obtains particle diameter and obtains finished product PVDF fluorocarbon powder paint at the particle of 15-30 μ m, and performance test is as shown in table 2:
The fluorocarbon powder paint film performance table with test results of table 2. embodiment 2
This powder coating adopts electrostatic gun, is applied to metallic surface, and through 240 ℃ of bakings in 10 minutes, gained coating is carried out salt-fog resistant test (JIS K5400-9.1) and reached 5000 hours, and resistance to 10% hydrochloric acid has no adverse reaction for 20 minutes.
Embodiment 3
In container, add 80 kilograms of PVDF resins, 8 kilograms of epoxy resin E20; 8 kilograms of acrylic resins; 20 kilograms of cobalt greens; 1 kilogram of st-yrax; 2 kilograms of BD-3232 flow agents; 2 kilograms of Germany Bi Ke BYK-4510 adhesion promoters; 3 kilograms of 1 kilogram of inclined to one side fluoroether rubber and boric acid, raw material is after 100 ℃ of left and right melting mixing, carry out compressing tablet, then be broken into the particle of diameter 0.5-1cm, particle being put into target formula airflow milling beats carefully again, screening obtains particle diameter and obtains finished product PVDF fluorocarbon powder paint at the particle of 15-20 μ m, and performance test is as shown in table 3:
The fluorocarbon powder paint film performance table with test results of table 3. embodiment 3
This powder coating adopts electrostatic gun, is applied to metallic surface, and through 240 ℃ of bakings in 10 minutes, gained coating is carried out salt-fog resistant test (JIS K5400-9.1) and reached 5000 hours, and resistance to 10% hydrochloric acid has no adverse reaction for 20 minutes.
The raw material using in the present invention, unless dated especially, refer on market and can purchase the general goods obtaining.
More than show and only described principal character of the present invention and main points.Those skilled in the art should understand, and the present invention is not restricted to the described embodiments.Do not departing under the prerequisite of inventive point and protection domain, the present invention also has various variations, and these changes and improvements all will fall in the scope of protection of present invention.
Claims (5)
1. a PVDF fluorocarbon powder paint, is characterized in that being comprised of following raw materials according:
PVDF resin 50-80 part;
Epoxy resin 2-10 part;
Acrylic resin 2-10 part;
Mineral dye 10-20 part;
St-yrax 1-2 part;
Flow agent 1-3 part;
Adhesion promoter 1-2 part;
Viton 1-3 part;
Boric acid 1-5 part.
2. PVDF fluorocarbon powder paint as claimed in claim 1, is characterized in that being comprised of following raw materials according:
PVDF resin 60-80 part;
Epoxy resin 2-10 part;
Acrylic resin 2-10 part;
Mineral dye 15-20 part;
St-yrax 1-2 part;
Flow agent 1-3 part;
Adhesion promoter 1-2 part;
Viton 1-3 part;
Boric acid 1-3 part.
3. the preparation method of a PVDF fluorocarbon powder paint as claimed in claim 1 or 2, after it is characterized in that comprising the steps: raw materials melt is mixed, carry out compressing tablet, then be broken into the particle of diameter 0.5-1.5cm, particle is put into target formula airflow milling again and beaten carefully, the particle that screening obtains particle diameter≤30 μ m obtains finished product PVDF fluorocarbon powder paint.
4. the preparation method of PVDF fluorocarbon powder paint as claimed in claim 3, is characterized in that the temperature of described raw materials melt mixing is between 100-120 ℃.
5. the preparation method of PVDF fluorocarbon powder paint as claimed in claim 3, is characterized in that the particle diameter of finished product PVDF fluorocarbon powder paint is between 15-30 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310681612.7A CN103694812A (en) | 2013-12-13 | 2013-12-13 | PVDF (Polyvinylidene Fluoride) fluorocarbon powder coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310681612.7A CN103694812A (en) | 2013-12-13 | 2013-12-13 | PVDF (Polyvinylidene Fluoride) fluorocarbon powder coating and preparation method thereof |
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| CN103694812A true CN103694812A (en) | 2014-04-02 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105368184A (en) * | 2015-11-25 | 2016-03-02 | 安徽圣德建材科技有限公司 | Antibacterial polyvinylidene fluoride powder coating |
| CN105368183A (en) * | 2015-11-24 | 2016-03-02 | 安徽省金盾涂料有限责任公司 | Weather-resistant PVDF fluorocarbon powder coating |
| CN105802365A (en) * | 2014-12-31 | 2016-07-27 | 江苏考普乐新材料有限公司 | Production method and equipment for PVDF fluorocarbon coating |
| CN106543816A (en) * | 2016-12-07 | 2017-03-29 | 厦门市三和泰科技有限公司 | A kind of preparation method of PVDF fluorocarbon powder paints |
| CN106700757A (en) * | 2015-08-03 | 2017-05-24 | 中山市凯德美塑料粉末有限公司 | Fluorocarbon powder coating used for aluminum sections, and preparation method thereof |
| CN107603362A (en) * | 2017-09-01 | 2018-01-19 | 广东依斯特新材料有限公司 | A kind of PVDF fluorocarbon powder paints and preparation method thereof |
| CN108695402A (en) * | 2018-05-30 | 2018-10-23 | 苏州中来光伏新材股份有限公司 | A kind of solar cell backboard and preparation method thereof |
| US20220212295A1 (en) * | 2019-05-29 | 2022-07-07 | Alfa Laval Corporate Ab | Method for joining metal parts |
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| CN102140283A (en) * | 2011-04-14 | 2011-08-03 | 常州市双辉化工有限公司 | Preparation method for super-weatherability powder coating |
| CN102153082A (en) * | 2011-04-25 | 2011-08-17 | 福建省将乐县乐洪活性炭有限公司 | Method for preparing wood activated carbon by phosphoric acid method |
| EP2402402A1 (en) * | 2010-06-29 | 2012-01-04 | Spring Color S.R.L. | Powdered material for the arts or the building industry |
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| EP2402402A1 (en) * | 2010-06-29 | 2012-01-04 | Spring Color S.R.L. | Powdered material for the arts or the building industry |
| CN102140283A (en) * | 2011-04-14 | 2011-08-03 | 常州市双辉化工有限公司 | Preparation method for super-weatherability powder coating |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105802365A (en) * | 2014-12-31 | 2016-07-27 | 江苏考普乐新材料有限公司 | Production method and equipment for PVDF fluorocarbon coating |
| CN106700757A (en) * | 2015-08-03 | 2017-05-24 | 中山市凯德美塑料粉末有限公司 | Fluorocarbon powder coating used for aluminum sections, and preparation method thereof |
| CN105368183A (en) * | 2015-11-24 | 2016-03-02 | 安徽省金盾涂料有限责任公司 | Weather-resistant PVDF fluorocarbon powder coating |
| CN105368184A (en) * | 2015-11-25 | 2016-03-02 | 安徽圣德建材科技有限公司 | Antibacterial polyvinylidene fluoride powder coating |
| CN106543816A (en) * | 2016-12-07 | 2017-03-29 | 厦门市三和泰科技有限公司 | A kind of preparation method of PVDF fluorocarbon powder paints |
| CN106543816B (en) * | 2016-12-07 | 2019-06-04 | 厦门市三和泰科技有限公司 | A kind of preparation method of PVDF fluorocarbon powder paint |
| CN107603362A (en) * | 2017-09-01 | 2018-01-19 | 广东依斯特新材料有限公司 | A kind of PVDF fluorocarbon powder paints and preparation method thereof |
| CN107603362B (en) * | 2017-09-01 | 2020-06-16 | 广东依斯特新材料有限公司 | PVDF fluorocarbon powder coating and preparation method thereof |
| CN108695402A (en) * | 2018-05-30 | 2018-10-23 | 苏州中来光伏新材股份有限公司 | A kind of solar cell backboard and preparation method thereof |
| US20220212295A1 (en) * | 2019-05-29 | 2022-07-07 | Alfa Laval Corporate Ab | Method for joining metal parts |
| US11738414B2 (en) * | 2019-05-29 | 2023-08-29 | Alfa Laval Corporate Ab | Method for joining metal parts |
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Application publication date: 20140402 |