CN101298530A - Fluorine carbon silver powder baking finish and preparation thereof, special diluting agent and use method thereof - Google Patents
Fluorine carbon silver powder baking finish and preparation thereof, special diluting agent and use method thereof Download PDFInfo
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- CN101298530A CN101298530A CNA2008100679229A CN200810067922A CN101298530A CN 101298530 A CN101298530 A CN 101298530A CN A2008100679229 A CNA2008100679229 A CN A2008100679229A CN 200810067922 A CN200810067922 A CN 200810067922A CN 101298530 A CN101298530 A CN 101298530A
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Abstract
The invention relates to a fluorocarbon aluminum powder baking paint which is made from components with following weight ratio: 40-50 of fluororesin, 15-25 of acrylic resin, 9-16 of amino resin, 0.3-1.0 of dispersant, 0.3-1.0 of wax powder, 0.05-0.15 of levelling agent, 5.5-8.5 of non-leafing aluminium paste, 3-8 of methyl isobutyl ketone, 6-12 of dimethylbenzene, and 3-8 of propylene glycol monoemethyl ether acetate. The preparation method is that: pre-disperse the aluminium paste, add the dispersant after the fluororesin, the acrylic resin and the amino resin are agitated at intermediate speed to be evenly mixed, add the wax powder after agitating, add the leveling agent, the dimethylbenzene, the methyl isobutyl ketone and the propylene glycol monomethyl ether acetate when agitating at high speed to be uniformly blended; add the pre-dispersed aluminium paste into the paint vehicle, continue to agitate until the aluminium paste is uniformly dispersed, then filter to obtain the fluorocarbon aluminum powder baking paint. The invention also relates to a special diluent and the using method. The paint has the advantages of baking at medium temperature with high efficiency and low energy consumption; weather resistance approximate to PVDF fluorocarbon paint; re-coating without special processing, excellent adhesion between coatings; high rigidity; contamination resistance; no need of acid catalyst, good storage stabilization; and wide option of color.
Description
Technical field
The present invention relates to a kind of fluorine-carbon-aluminum powder baking varnish and preparation method thereof, special diluting agent and using method, especially relate to a kind of middle temperature baking type fluorine carbon-aluminum powder baking varnish and preparation method thereof, special diluting agent and using method.
Background technology
Aluminum curtain wall plate for building surface is adopted the protection of PVDF type fluorocarbon silver paint more and is decorated, and PVDF type fluorine carbon lacquer has extraordinary outdoor weatherability, and reach more than 20 years outdoor working life.But because PVDF type fluorine carbon lacquer need be at high bake more than 230 ℃, energy consumption height, production cost height.The patent of invention that, application number disclosed on October 31st, 2007 is 200710111722, publication number is CN101063017A disclose a kind of freeway guardrail with in warm fluorocarbon baking varnish, there is lot of advantages aspects such as its performance, but thoroughly polishing during its recoat, otherwise serious film defect that can not levelling will appear, and interlayer adheres to not good, makes troubles to production.
Summary of the invention
When providing a kind of recoat, the technical problem to be solved in the present invention need not polish and the middle temperature baking type fluorine carbon-aluminum powder baking varnish of ply adhesion excellence and preparation method thereof, special diluting agent and using method.
For addressing the above problem, the invention provides a kind of fluorine-carbon-aluminum powder baking varnish, make by the component of following weight proportion:
Fluororesin 40-50
Acrylic resin 15-25
Aminoresin 9-16
Dispersion agent 0.3-1.0
Wax powder 0.3-1.0
Flow agent 0.05-0.15
Non-floating type aluminium-silver slurry 5.5-8.5
Methyl iso-butyl ketone (MIBK) 3-8
Dimethylbenzene 6-12
Propylene glycol methyl ether acetate 3-8,
Described fluoro-resin is that raw material carries out quarternary copolymerized making by trifluorochloroethylene, hydroxyl vinyl ether, vinyl acetate and aliphatics olefin(e) acid, fluorine content 〉=25%.
Described fluoro-resin solid content is 50%, its number-average molecular weight 15000-30000, the resin liquid of hydroxyl value 20-30mgKOH/g, acid number≤3.
Described each composition weight proportioning is:
Fluoro-resin 42
Acrylic resin 18
Aminoresin 11
Dispersion agent 0.4
Wax powder 0.5
Flow agent 0.1
Non-floating type aluminium-silver slurry 7
Methyl iso-butyl ketone (MIBK) 6
Dimethylbenzene 10
Propylene glycol methyl ether acetate 5.
Described wax powder is PP wax or PTFE wax.
Described acrylic resin be can be miscible with described fluoro-resin arbitrary proportion the thermoset Hydroxylated acrylic resin.
Described aminoresin for to contain admittedly 〉=98% hexakis-methoxy methyl melamine resin.
Described dispersion agent is that the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight adds organo-siloxane interpolymer solution; Described flow agent is polyethers or polyester modification polydimethylsiloxane solution.
A kind of method for preparing described fluorine-carbon-aluminum powder baking varnish comprises the steps:
Step 1. aluminium-silver slurry pre-dispersed: according to weight proportion get non-floating type aluminium-silver slurry and with its etc. the dimethylbenzene of weight mix, stirring at low speed is to there not being the accumulative aluminum particle then;
Step 2. get fluoro-resin, acrylic resin, aminoresin in the component according to weight proportion, being low to moderate middling speed mixes, add dispersion agent again, middling speed stirs and adds the wax powder after 10-15 minute, and high-speed stirring 15 minutes, add flow agent, residue dimethylbenzene, methyl iso-butyl ketone (MIBK), propylene glycol methyl ether acetate then by weight ratio, be low to moderate middling speed and mix;
Step 3. pre-dispersed good aluminium-silver slurry in the described step 1 is joined under stirring at low speed in the paint vehicle that step 2 obtains, add and continue stirring at low speed 10-15 minute, filter and promptly obtain fluorine-carbon-aluminum powder baking varnish to being uniformly dispersed.
A kind of diluent of fluorine-carbon-aluminum powder baking varnish special use, mixed by the component of following weight ratio and to constitute:
Dimethylbenzene 60
Methyl iso-butyl ketone (MIBK) 20
Propylene glycol methyl ether acetate 15
DBE 5
A kind of method of using described fluorine-carbon-aluminum powder baking varnish and described diluent: fluorine-carbon-aluminum powder baking varnish and thinner are mixed by weight 1: 0.5～0.7, carry out spraying application then, sprayed and left standstill or air-dry 5-10 minute, 160 ℃ of bakings 30 minutes, promptly obtain the fluorine-carbon-aluminum powder baking varnish paint film then.
Fluorine-carbon-aluminum powder baking varnish of the present invention, the fluoro-resin in its component are reason and the basic places that guarantees that described fluorocarbon silver paint has excellent weather resistance; Acrylic resin be can be miscible with above-mentioned fluoro-resin arbitrary proportion the thermoset Hydroxylated acrylic resin, its adding has not only improved the physical and mechanical properties of filming, as shock resistance and snappiness, the more important thing is that fluoro-resin-aminoresin system recoatability is poor, interlayer does not have sticking power, the adding of acrylic resin makes it have good recoatability, and ply adhesion reaches 1 grade; Aminoresin is hexakis-methoxy methyl melamine resin, has good compatibility, and simultaneously because its functionality is 6, cross-linking reaction degree height, paint film have shock resistance, excellent flexibility and the anti-various chemical mediator of high rigidity, excellence.
The adding of wax powder has improved aligning of aluminium powder, gives the smooth property of coating surface excellence, has certain effect to preventing the aluminium powder sedimentation.Further adopt PP wax in the technical scheme, can bear high temperature more than 160 ℃; And PTFE wax powder cost is than PP wax height, but has higher temperature tolerance, better smooth property and wear resistance than PP wax powder.
Fluorine-carbon-aluminum powder baking varnish of the present invention can be applicable to aluminium sheet, electrolytic zinc-coated steel sheet and general steel plate, has following advantage:
1. middle temperature baking is enhanced productivity, and significantly cuts down the consumption of energy;
2. selected aminoresin and acrylic resin all have good weather, and the fluorocarbon baking varnish paint film cross-linking density height with fluoro-resin collocation preparation has the weathering resistance near PVDF type fluorine carbon lacquer;
3. the hardness height can reach more than the Chinese pencil 3H wear resistance, shock resistance excellence;
4. resistance to crocking excellence.
5. all can stand the toning that pigment slurry that 170 ℃ of high temperature, weathering resistancies reach 5 grades all can be used for described fluorine-carbon-aluminum powder baking varnish, and comparing PVDF type fluorine carbon lacquer needs at high bake more than 230 ℃, and the color selectivity is widened greatly.
6. because the adding of acrylic resin has changed workability, do not need to do any particular processing when making recoat, normal position does not need polishing, ply adhesion excellence.
7. do not need acid catalyst, stability in storage is good.
Embodiment
Each component of the present invention all adopts currently available products, and each component that embodiment 1～3 selects and weight and part component model can be but listed product type in being not limited to show as shown in Table 1.
Wherein, fluoro-resin JF-2X is that raw material carries out quarternary copolymerized making by trifluorochloroethylene, alkyl vinyl ether, vinyl acetate and aliphatics olefin(e) acid, its number-average molecular weight 15000-30000, solid content is 50%, fluorine content 〉=25%, hydroxyl value 20-30mgKOH/g resin liquid, acid number≤3.
Described Hydroxylated acrylic resin can be miscible with described fluoro-resin arbitrary proportion, and solid content is 50%.
Described aminoresin Cymel303 and MR603 are admittedly and contain 〉=98% hexakis-methoxy methyl melamine resin.
Table one
Dispersant B YK-P104S is that the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight adds organo-siloxane interpolymer solution; Flow agent BYK310 is polyethers or polyester modification polydimethylsiloxane solution.Non-floating type aluminium-silver slurry also can adopt commercially available various product except the listed model of table one, and its surface effect can satisfy customer requirement and get final product.
Below in conjunction with specific embodiment technical scheme of the present invention is described.
Embodiment 1
Prepare fluorine-carbon-aluminum powder baking varnish master lacquer of the present invention:
Get each component according to " embodiment 1 " listed weight in the table one, the preparation method is according to following steps:
Step 1: aluminium-silver slurry pre-dispersed: get non-floating type aluminium-silver slurry and etc. the dimethylbenzene of weight mix, stirring at low speed is to there not being the accumulative aluminum particle, and is standby.
Step 2: get fluoro-resin, acrylic resin, aminoresin in the component according to weight proportion, being low to moderate middling speed mixes, add dispersion agent again, middling speed stirs and adds the wax powder after 10-15 minute, and high-speed stirring 15 minutes, add flow agent, residue dimethylbenzene, methyl iso-butyl ketone (MIBK), propylene glycol methyl ether acetate then by weight, be low to moderate middling speed and mix.
Step 3: pre-dispersed good aluminium-silver slurry in the above-mentioned steps one is joined under stirring at low speed in the paint vehicle that step 2 obtains, add and continue stirring at low speed 10-15 minute to being uniformly dispersed, 100 mesh filter screens filter and promptly obtain fluorine-carbon-aluminum powder baking varnish.
Prepare supporting thinner:
1. dimethylbenzene 60
2. methyl iso-butyl ketone (MIBK) 20
3. propylene glycol methyl ether acetate 15
4.DBE 5
According to above weight proportion, above-mentioned four kinds of solvents are added in the production container, stirring at low speed 5-10 minute, 400 mesh filter screens filtered, and packed, and promptly obtained the diluent of described fluorine-carbon-aluminum powder baking varnish.
Using method: described fluorine-carbon-aluminum powder baking varnish and described thinner were mixed by weight 1: 0.7, carry out spraying application then, sprayed and left standstill or air-dry 5-10 minute, 160 ℃ of bakings 30 minutes, promptly obtain the fluorine-carbon-aluminum powder baking varnish paint film then.
Traditional performance detected result (build 20-26 μ m) is shown in " embodiment 1 " corresponding data in the table two.
Embodiment 2
With each listed composition weight of " embodiment 2 " in the table one, repeat the foregoing description 1 described method (only each composition weight changes), prepare fluorine-carbon-aluminum powder baking varnish master lacquer; The component, proportioning and the preparation method that repeat thinner among the embodiment 1 prepare thinner; To lead the lacquer and thinner mixed according to 1: 0.6, then according to embodiment 1 described method construct with drying after obtain the fluorine-carbon-aluminum powder baking varnish paint film.
Traditional performance detected result (build 20-26 μ m) is shown in " embodiment 2 " corresponding data in the table two.
Embodiment 3
With " embodiment 3 " listed each composition weight in the table one, repeat embodiment 1 described method (only each composition weight changes), prepare fluorine-carbon-aluminum powder baking varnish master lacquer; The component, proportioning and the preparation method that repeat thinner among the embodiment 1 prepare thinner; To lead the lacquer and thinner mixed according to 1: 0.5, then according to embodiment 1 described method construct with drying after obtain the fluorine-carbon-aluminum powder baking varnish paint film.
Traditional performance detected result (build 20-26 μ m) is shown in " embodiment 3 " corresponding data in the table two.
Table two
| Sequence number | Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| 1 | Sticking power | 1 grade | 1 grade | 1 grade |
| 2 | Hardness (Chinese pencil) | 3H | 3H | 3H |
| 3 | Snappiness (≤mm) | 1 | 1 | 1 |
| 4 | Shock resistance (〉=cm) | Positive and negative 50 | Positive and negative 50 | Positive and negative 50 |
| 5 | MEK wiping (100 times) | Coating surface slightly abrades, and is not show-through | Coating surface slightly abrades, and is not show-through | Coating surface slightly abrades, and is not show-through |
| 6 | Resistance to crocking (red symbol pen) | Leave no trace | Leave no trace | Leave no trace |
| 7 | Recoatability (two coating film total thickness are 35-45 μ m) | Recoat is accessible, ply adhesion≤1 grade, multiple layer snappiness≤2 mm, square impact 〉=50 cm | Recoat is accessible, ply adhesion≤1 grade, multiple layer snappiness≤2 mm, square impact 〉=50 cm | Recoat is accessible, ply adhesion≤1 grade, multiple layer snappiness≤2 mm, square impact 〉=50 cm |
Claims (10)
1. fluorine-carbon-aluminum powder baking varnish, make by the component of following weight proportion:
Fluororesin 40-50
Acrylic resin 15-25
Aminoresin 9-16
Dispersion agent 0.3-1.0
Wax powder 0.3-1.0
Flow agent 0.05-0.15
Non-floating type aluminium-silver slurry 5.5-8.5
Methyl iso-butyl ketone (MIBK) 3-8
Dimethylbenzene 6-12
Propylene glycol methyl ether acetate 3-8,
Described fluoro-resin is that raw material carries out quarternary copolymerized making by trifluorochloroethylene, hydroxyl vinyl ether, vinyl acetate and aliphatics olefin(e) acid, fluorine content 〉=25%.
2. fluorine-carbon-aluminum powder baking varnish according to claim 1 is characterized in that, described fluoro-resin solid content is 50%, its number-average molecular weight 15000-30000, the resin liquid of hydroxyl value 20-30mgKOH/g, acid number≤3.
3. fluorine-carbon-aluminum powder baking varnish according to claim 1 is characterized in that, described each composition weight proportioning is:
Fluoro-resin 42
Acrylic resin 18
Aminoresin 11
Dispersion agent 0.4
Wax powder 0.5
Flow agent 0.1
Non-floating type aluminium-silver slurry 7
Methyl iso-butyl ketone (MIBK) 6
Dimethylbenzene 10
Propylene glycol methyl ether acetate 5.
4. according to each described fluorine-carbon-aluminum powder baking varnish of claim 1～3, it is characterized in that described wax powder is PP wax or PTFE wax.
5. according to each described fluorine-carbon-aluminum powder baking varnish of claim 1～3, it is characterized in that, described acrylic resin be can be miscible with described fluoro-resin arbitrary proportion the thermoset Hydroxylated acrylic resin.
6. according to each described fluorine-carbon-aluminum powder baking varnish of claim 1～3, it is characterized in that, described aminoresin for to contain admittedly 〉=98% hexakis-methoxy methyl melamine resin.
7. according to each described fluorine-carbon-aluminum powder baking varnish of claim 1～3, it is characterized in that described dispersion agent is that the unsaturated polycarboxylic acid polymkeric substance of lower molecular weight adds organo-siloxane interpolymer solution; Described flow agent is polyethers or polyester modification polydimethylsiloxane solution.
8. a method for preparing described fluorine-carbon-aluminum powder baking varnish comprises the steps:
Step 1. aluminium-silver slurry pre-dispersed: according to weight proportion get non-floating type aluminium-silver slurry and with its etc. the dimethylbenzene of weight mix, stirring at low speed is to there not being the accumulative aluminum particle then;
Step 2. get fluoro-resin, acrylic resin, aminoresin in the component according to weight proportion, being low to moderate middling speed mixes, add dispersion agent again, middling speed stirs and adds the wax powder after 10-15 minute, and high-speed stirring 15 minutes, add flow agent, residue dimethylbenzene, methyl iso-butyl ketone (MIBK), propylene glycol methyl ether acetate then by weight ratio, be low to moderate middling speed and mix;
Step 3. pre-dispersed good aluminium-silver slurry in the described step 1 is joined under stirring at low speed in the paint vehicle that step 2 obtains, add and continue stirring at low speed 10-15 minute, filter and promptly obtain fluorine-carbon-aluminum powder baking varnish to being uniformly dispersed.
9. the diluent of a fluorine-carbon-aluminum powder baking varnish special use, mixed by the component of following weight ratio and to constitute:
Dimethylbenzene 60
Methyl iso-butyl ketone (MIBK) 20
Propylene glycol methyl ether acetate 15
DBE 5。
10. method of using described fluorine-carbon-aluminum powder baking varnish and the described diluent of claim 9: fluorine-carbon-aluminum powder baking varnish and thinner 1: 0.5～0.7 are mixed by weight, carry out spraying application then, sprayed and left standstill or air-dry 5-10 minute, 160 ℃ of bakings 30 minutes, promptly obtain the fluorine-carbon-aluminum powder baking varnish paint film then.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101906860A (en) * | 2010-07-09 | 2010-12-08 | 嘉兴市中法金属表面处理有限公司 | Aluminum silver wall decoration material and manufacturing process thereof |
| CN102161853A (en) * | 2011-05-31 | 2011-08-24 | 杭州立威化工涂料有限公司 | Technical manufacturing process for low-temperature curing amino baking finish |
| CN102533010A (en) * | 2012-01-16 | 2012-07-04 | 雅泰实业集团有限公司 | Weather-resistant paint |
| CN104449107A (en) * | 2014-11-24 | 2015-03-25 | 无锡市虎皇漆业有限公司 | High temperature baking type PVDF coating and preparation method thereof |
| CN105199507A (en) * | 2014-06-29 | 2015-12-30 | 江苏飞翔涂料实业总公司 | Baking varnish paint |
| CN105400319A (en) * | 2015-11-27 | 2016-03-16 | 安徽锦洋氟化学有限公司 | Waterborne fluorocarbon metal baking paint for hull surface |
| CN106189584A (en) * | 2016-07-18 | 2016-12-07 | 天长市巨龙车船涂料有限公司 | A kind of high hard highlighted antitheft door special-purpose metal paint |
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| CN107523200A (en) * | 2017-07-28 | 2017-12-29 | 苏州健雄职业技术学院 | Automotive thermoplastic's plastic fittings coating and its preparation method and application |
| CN111205717A (en) * | 2020-02-28 | 2020-05-29 | 厦门红彩化工有限公司 | High-hardness silver flashing baking paint and preparation method thereof |
| CN115895351A (en) * | 2022-12-01 | 2023-04-04 | 安徽江锐新材料有限公司 | Wet-spraying high-film-thickness FEVE fluorocarbon baking paint and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101906860A (en) * | 2010-07-09 | 2010-12-08 | 嘉兴市中法金属表面处理有限公司 | Aluminum silver wall decoration material and manufacturing process thereof |
| CN101906860B (en) * | 2010-07-09 | 2012-11-07 | 嘉兴市中法金属表面处理有限公司 | Aluminum silver wall decoration material and manufacturing process thereof |
| CN102161853A (en) * | 2011-05-31 | 2011-08-24 | 杭州立威化工涂料有限公司 | Technical manufacturing process for low-temperature curing amino baking finish |
| CN102533010A (en) * | 2012-01-16 | 2012-07-04 | 雅泰实业集团有限公司 | Weather-resistant paint |
| CN102533010B (en) * | 2012-01-16 | 2015-03-18 | 雅泰实业集团有限公司 | Weather-resistant paint |
| CN105199507A (en) * | 2014-06-29 | 2015-12-30 | 江苏飞翔涂料实业总公司 | Baking varnish paint |
| CN104449107A (en) * | 2014-11-24 | 2015-03-25 | 无锡市虎皇漆业有限公司 | High temperature baking type PVDF coating and preparation method thereof |
| CN105400319A (en) * | 2015-11-27 | 2016-03-16 | 安徽锦洋氟化学有限公司 | Waterborne fluorocarbon metal baking paint for hull surface |
| CN106189584A (en) * | 2016-07-18 | 2016-12-07 | 天长市巨龙车船涂料有限公司 | A kind of high hard highlighted antitheft door special-purpose metal paint |
| CN107151492A (en) * | 2017-05-02 | 2017-09-12 | 安徽康瑞高科新材料技术工程有限公司 | A kind of imitative anodic oxidation coating and preparation method thereof |
| CN107523200A (en) * | 2017-07-28 | 2017-12-29 | 苏州健雄职业技术学院 | Automotive thermoplastic's plastic fittings coating and its preparation method and application |
| CN111205717A (en) * | 2020-02-28 | 2020-05-29 | 厦门红彩化工有限公司 | High-hardness silver flashing baking paint and preparation method thereof |
| CN115895351A (en) * | 2022-12-01 | 2023-04-04 | 安徽江锐新材料有限公司 | Wet-spraying high-film-thickness FEVE fluorocarbon baking paint and preparation method thereof |
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Address after: 518103 No. 42 Qiaotang Road, Qiaotou Community, Fuyong Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN GRANDLAND ENVIRONMENTAL-FRIENDLY PAINT CO.,LTD. Address before: 518003 Luohu District, Shenzhen City, Guangdong Province, 1003 along Hebei Road Patentee before: SHENZHEN GRANDLAND ENVIRONMENTAL-FRIENDLY PAINT CO.,LTD. |
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Granted publication date: 20100616 |