CN103965710A - Special fluorocarbon coating for high-temperature baked type aluminum profiles and preparation method of fluorocarbon coating - Google Patents
Special fluorocarbon coating for high-temperature baked type aluminum profiles and preparation method of fluorocarbon coating Download PDFInfo
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- CN103965710A CN103965710A CN201410139387.9A CN201410139387A CN103965710A CN 103965710 A CN103965710 A CN 103965710A CN 201410139387 A CN201410139387 A CN 201410139387A CN 103965710 A CN103965710 A CN 103965710A
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- fluorocarbon coating
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Abstract
The invention discloses a special fluorocarbon coating for high-temperature baked type aluminum profiles and a preparation method of the fluorocarbon coating. The fluorocarbon coating comprises raw materials in percentage by weight as follows: 15-25% of PVDF (polyvinylidene fluoride) resin, 6-15% of thermoplastic acrylic resin, 1-5% of PMA (propylene glycol monomethyl ether acetate), 3-8% of isophorone, 1-6% of No.150 solvent oil, 10-20% of xylene, 3-5% of diethylene glycol diethylether, 2-5% of butyl acetate, 5-25% of cyclohexanone, 2-10% of diethyl phthalate, 0.5-3% of ethylene glycol monobutyl ether, 0.3-2% of n-butyl alcohol, 3-25% of pigment, 0.3-2% of high-molecular-weight polyester, 0.1-0.8% of bentonite and 0.1-0.7% of a fluorine-modified polyacrylate copolymer. The fluorocarbon coating is applicable to coating of various aluminum profiles, very high in adhesive force to the aluminum profiles and good in weather resistance and durability; secondly, the fluorocarbon coating is self-cleaning, that is, dust, oil stains and the like cannot adhere to the surface of the coating easily, and the coating becomes bright immediately when simply washed by rain or water. In addition, the fluorocarbon coating has a good anti-corrosion effect under polluting weather conditions such as acid rain, urban atmospheres, automobile exhaust and the like.
Description
Technical field
The invention belongs to coating processing technique field, specifically special-purpose fluorocarbon coating of a kind of high bake type aluminium section bar and preparation method thereof.
Background technology
The surface of aluminium section bar usually needs to apply a coating, and the coating that prior art is applied on aluminium section bar adopts the method paint film build of spraying at 25 ± 5 μ m, and 150 ℃, the baking of 30min constant temperature.The coating weathering resistance being applied on aluminium section bar of prior art is poor, not strong to the friction pull of aluminium section bar, occurs that coming off even appears in crackle.In addition the coating that, prior art is applied on aluminium section bar does not have preservative effect to acid rain, urban atmosphere, vehicle exhaust.
Fluorocarbon coating is a kind of new coating material that passes through modification on fluoro-resin basis, process, and its principal feature is in resin, to contain a large amount of C-F keys, has weathering resistance and the resistant to chemical media corrodibility of overlength.
PVDF resin is the chain crystalline polymer that take-CH2-CF2-is structural unit, and its molecular structure has asymmetry, and relative molecular mass is generally between 250000-1000000.There is excellent weather resistance, stain resistance, higher guarantor's look, bag photosensitiveness, fabulous chemical proofing and thermostability.
Summary of the invention
The object of the present invention is to provide special-purpose fluorocarbon coating of a kind of high bake type aluminium section bar and preparation method thereof.
Object of the present invention can be achieved through the following technical solutions:
The special-purpose fluorocarbon coating of high bake type aluminium section bar, is characterized in that, following raw materials by weight, consists of:
The weight percent of raw material of the present invention is more preferably:
The weight percent of raw material of the present invention is more preferably:
In fluorine modified polyacrylate multipolymer of the present invention, fluorine content is 22-24.6%.
Described pigment is titanium dioxide.
The present invention also discloses a kind of method of preparing the special-purpose fluorocarbon coating of high bake type aluminium section bar, it is characterized in that, comprises the following steps:
(1) by weight percentage PVDF resin, thermoplastic acrylic resin, 1-Methoxy-2-propyl acetate, isophorone, No. 150 solvent oils, dimethylbenzene, diethylene glycol ether, N-BUTYL ACETATE, pimelinketone, dimethyl phthalate, ethylene glycol mono—n—butylester, propyl carbinols are dropped into stirring tank successively, high-speed stirring 1-1.5h, until dissolve completely;
(2) in the stirring tank of step (1), add pigment, high molecular weight polyesters and wilkinite successively by weight percentage, high-speed stirring 15-20min, then be ground to fineness≤20 μ m with shredder;
(3) in the mixture of the most backward step (2), add fluorine modified polyacrylate multipolymer, high-speed stirring 10-15min.
Whipping temp in step of the present invention (1), step (2) and step (3) is 20-35 ℃, and grinding temperature is 20-35 ℃.
Beneficial effect of the present invention: fluorocarbon coating of the present invention is applicable to various coatings of the aluminium profiles, very strong to aluminium section bar friction pull, there is good weather-proof weather resistance, next has self-cleaning property, be that dust, greasy dirt etc. are difficult to adhere at coating surface, rainy or water simply rinses, and light at once becomes.In addition, fluorocarbon coating of the present invention, for contaminative weather condition such as acid rain, urban atmosphere, vehicle exhausts, has good preservative effect.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Raw material of the present invention has sale on market.
PVDF resin, thermoplastic acrylic resin are bought from east, Shanghai fluorine chemical Science and Technology Ltd..
Fluorine modified polyacrylate multipolymer is bought the Chemical Co., Ltd. of setting sail from Guangzhou, and model is EFKA3777.
1-Methoxy-2-propyl acetate, isophorone, No. 150 solvent oils, dimethylbenzene, diethylene glycol ether, N-BUTYL ACETATE, pimelinketone, diethyl phthalate, ethylene glycol mono—n—butylester, propyl carbinols are bought from Chinese Petroleum Company.
Titanium dioxide is Dupont 902.
High molecular weight polyesters is bought Zi Jintuan chemical company limited.
Wilkinite is bought contented modest (Shanghai) chemical company limited.
Embodiment 1
The special-purpose fluorocarbon coating of high bake type aluminium section bar, is comprised of following raw materials by weight:
Preparation method of the present invention is: comprise the following steps:
(1) by weight percentage PVDF resin, thermoplastic acrylic resin, 1-Methoxy-2-propyl acetate, isophorone, No. 150 solvent oils, dimethylbenzene, diethylene glycol ether, N-BUTYL ACETATE, pimelinketone, dimethyl phthalate, ethylene glycol mono—n—butylester, propyl carbinols are dropped into stirring tank successively, high-speed stirring 1-1.5h, until dissolve completely;
(2) in the stirring tank of step (1), add pigment, high molecular weight polyesters and wilkinite successively by weight percentage, high-speed stirring 15-20min, then be ground to fineness≤20 μ m with shredder;
(3) in the mixture of the most backward step (2), add fluorine modified polyacrylate multipolymer, high-speed stirring 10-15min.
Whipping temp in step of the present invention (1), step (2) and step (3) is 20-35 ℃, and grinding temperature is 20-35 ℃.
Embodiment 2
The special-purpose fluorocarbon coating of high bake type aluminium section bar, is comprised of following raw materials by weight:
The preparation method of embodiment 2 is identical with embodiment 1.
Embodiment 3
The special-purpose fluorocarbon coating of high bake type aluminium section bar, is comprised of following raw materials by weight:
The preparation method of embodiment 3 is identical with embodiment 1.
Embodiment 4
The special-purpose fluorocarbon coating of high bake type aluminium section bar, is comprised of following raw materials by weight:
The preparation method of embodiment 4 is identical with embodiment 1.
Embodiment 5
The special-purpose fluorocarbon coating of high bake type aluminium section bar, is comprised of following raw materials by weight:
The preparation method of embodiment 5 is identical with embodiment 1.
The embodiment of the present invention, through test, has all obtained splendid coating performance, and its test result is on average as follows:
Table 1
| Performance | Index request | Test result | Commercially available existing similar paint performance |
| Surface drying (h) | ≤2 | 0.9 | 0.8-1 |
| Water tolerance (168h) | Without abnormal | Without abnormal | Without abnormal |
| Acid rain resistant (48h) | Without abnormal | Without abnormal | Without abnormal |
| Alkali resistance (168h) | Without abnormal | Without abnormal | Without abnormal |
| Sticking power | ≤1 | 0.2 | 1 |
| Contrast ratio | ≥0.93 | 0.96 | 0.92-0.95 |
| Abrasion resistance/time | ≥3000 | ≥3000 | ≥3000 |
| Salt tolerant atomization (h) | 1000 | ||
| Accelerate ageing-resistant (h) | 1000 |
Claims (7)
1. the special-purpose fluorocarbon coating of high bake type aluminium section bar, is characterized in that, following raw materials by weight, consists of:
2. the special-purpose fluorocarbon coating of high bake type aluminium section bar according to claim 1, is characterized in that, the weight percent of raw material more preferably:
3. the special-purpose fluorocarbon coating of high bake type aluminium section bar according to claim 2, is characterized in that, the weight percent of raw material more preferably:
4. according to the special-purpose fluorocarbon coating of the high bake type aluminium section bar described in claim 1 or 2 or 3, it is characterized in that, in described fluorine modified polyacrylate multipolymer, fluorine content is 22-24.6%.
5. according to the special-purpose fluorocarbon coating of the high bake type aluminium section bar described in claim 1 or 2 or 3, it is characterized in that, described pigment is titanium dioxide.
6. a preparation method for the special-purpose fluorocarbon coating of the high bake type aluminium section bar as described in claim 1 or 2 or 3, is characterized in that, comprises the following steps:
(1) by weight percentage PVDF resin, thermoplastic acrylic resin, 1-Methoxy-2-propyl acetate, isophorone, No. 150 solvent oils, dimethylbenzene, diethylene glycol ether, N-BUTYL ACETATE, pimelinketone, dimethyl phthalate, ethylene glycol mono—n—butylester, propyl carbinols are dropped into stirring tank successively, high-speed stirring 1-1.5h, until dissolve completely;
(2) in the stirring tank of step (1), add pigment, high molecular weight polyesters and wilkinite successively by weight percentage, high-speed stirring 15-20min, then be ground to fineness≤20 μ m with shredder;
(3) in the mixture of the most backward step (2), add fluorine modified polyacrylate multipolymer, high-speed stirring 10-15min.
7. the preparation method of the special-purpose fluorocarbon coating of high bake type aluminium section bar according to claim 6, is characterized in that, the whipping temp in described step (1), step (2) and step (3) is 20-35 ℃, and grinding temperature is 20-35 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139387.9A CN103965710A (en) | 2014-04-08 | 2014-04-08 | Special fluorocarbon coating for high-temperature baked type aluminum profiles and preparation method of fluorocarbon coating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410139387.9A CN103965710A (en) | 2014-04-08 | 2014-04-08 | Special fluorocarbon coating for high-temperature baked type aluminum profiles and preparation method of fluorocarbon coating |
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| CN103965710A true CN103965710A (en) | 2014-08-06 |
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| CN201410139387.9A Pending CN103965710A (en) | 2014-04-08 | 2014-04-08 | Special fluorocarbon coating for high-temperature baked type aluminum profiles and preparation method of fluorocarbon coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085150A (en) * | 2016-06-10 | 2016-11-09 | 洪其祥 | A kind of aqueous high wear-resistant low luster coating and preparation method thereof |
Citations (5)
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|---|---|---|---|---|
| WO1995021216A1 (en) * | 1994-02-04 | 1995-08-10 | E.I. Du Pont De Nemours And Company | Primer composition and use of the same composition for coating metal surfaces with a fluororesin |
| CN1702128A (en) * | 2004-05-24 | 2005-11-30 | 上海振华造漆厂 | Environment-friendly type nontoxic fluorine contained coating for coiled material |
| CN101235240A (en) * | 2008-03-10 | 2008-08-06 | 常州新刚高丽化工有限公司 | Fluorocarbon dope and producing method thereof |
| CN101824251A (en) * | 2010-05-07 | 2010-09-08 | 杭州美多乐化工有限公司 | Polyvinylidene fluoride type fluorocarbon resin super weather-resistant coating and production method thereof |
| CN103232772A (en) * | 2013-04-18 | 2013-08-07 | 佛山科学技术学院 | PVDF varnish, heat-insulation energy-saving fluorocarbon paint, and preparation methods thereof |
-
2014
- 2014-04-08 CN CN201410139387.9A patent/CN103965710A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995021216A1 (en) * | 1994-02-04 | 1995-08-10 | E.I. Du Pont De Nemours And Company | Primer composition and use of the same composition for coating metal surfaces with a fluororesin |
| CN1702128A (en) * | 2004-05-24 | 2005-11-30 | 上海振华造漆厂 | Environment-friendly type nontoxic fluorine contained coating for coiled material |
| CN101235240A (en) * | 2008-03-10 | 2008-08-06 | 常州新刚高丽化工有限公司 | Fluorocarbon dope and producing method thereof |
| CN101824251A (en) * | 2010-05-07 | 2010-09-08 | 杭州美多乐化工有限公司 | Polyvinylidene fluoride type fluorocarbon resin super weather-resistant coating and production method thereof |
| CN103232772A (en) * | 2013-04-18 | 2013-08-07 | 佛山科学技术学院 | PVDF varnish, heat-insulation energy-saving fluorocarbon paint, and preparation methods thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085150A (en) * | 2016-06-10 | 2016-11-09 | 洪其祥 | A kind of aqueous high wear-resistant low luster coating and preparation method thereof |
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