CN103396714A - Special varnish for vacuum plating - Google Patents
Special varnish for vacuum plating Download PDFInfo
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- CN103396714A CN103396714A CN2013102801688A CN201310280168A CN103396714A CN 103396714 A CN103396714 A CN 103396714A CN 2013102801688 A CN2013102801688 A CN 2013102801688A CN 201310280168 A CN201310280168 A CN 201310280168A CN 103396714 A CN103396714 A CN 103396714A
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- special varnish
- vinylformic acid
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Abstract
The invention relates to a special varnish for vacuum plating, which comprises the following components: 20-28wt% of acrylic resin, 20-27wt% of amino resin, 12-18wt% of epoxy resin, 2.5-3.5wt% of assistant and 20-35wt% of solvent. The special varnish for vacuum plating has excellent properties such as weather resistance, corrosion resistance, shock resistance and the like, also has the advantages of high film-forming thickness, high hardness, high wear resistance and the like, and is suitable for components which are for outside use and have high requirements for appearance and comprehensive properties of a coated film, for example, for painting the surfaces of automobiles, motorcycles and the like.
Description
Technical field
The invention belongs to the technical field of coating, more particularly, the present invention relates to the vacuum plating Special varnish of the excellent performances such as a kind of weathering resistance, corrosion-resistant and shock resistance.
Background technology
Body of a motor car, need to be at its top layer spraying multilayer organic coating for antirust and attractive in appearance.And along with the reach of science, also more and more higher to the performance requriements of these coating, require it to have good weathering resistance, oil-proofness and resistance to acids and bases and physical strength.
At present, varnish mainly comprise by two human subject resins respectively with the amino resin crosslinked varnish that solidify to form.Wherein a class is to be formed by vibrin and amino resin crosslinked curing mode; Another kind of is to be formed by acrylic resin and amino resin crosslinked curing mode.The coating surface glossiness of the varnish that is prepared by vibrin and amino resin crosslinked curing mode for the first kind is higher, and still, the sticking power between the metal primer of paint film and lower floor is poor; For the varnish that Equations of The Second Kind is prepared by acrylic resin and amino resin crosslinked curing mode, although the sticking power between the metal primer of paint film and lower floor is better, the coating surface glossiness is comparatively general.And by this two resinoid and the amino resin crosslinked varnish for preparing that solidifies, under some specific environment as under the effects such as oxygen, acid rain, degradation with aging is occurring easily, namely the weatherability of paint film and erosion resistance are all poor.
Summary of the invention
In order to solve above-mentioned technical problem of the prior art, the object of the present invention is to provide the vacuum plating Special varnish of the excellent performances such as a kind of weathering resistance, corrosion-resistant and shock resistance.
In order to realize the foregoing invention purpose, vacuum plating Special varnish of the present invention, comprise the acrylic resin of following component: 20-28wt%, the aminoresin of 20-27wt%, the epoxy resin of 12-18wt%, the auxiliary agent of 2.5-3.5wt% and the solvent of 20-35wt%.
Wherein, described acrylic resin is selected from one or more in (methyl) methyl acrylate, (methyl) vinylformic acid ethyl ester, (methyl) vinylformic acid propyl diester, (methyl) butyl acrylate cores, (methyl) Ethyl acrylate, (methyl) vinylformic acid (2-ethylhexyl) ester, (methyl) vinylformic acid n-octyl, (methyl) lauryl acrylate or (methyl) vinylformic acid stearyl.
Wherein, described aminoresin is methyl etherified melamine resin or methyl-etherified hexamethylol melamine resin.
Wherein, described auxiliary agent can come selectively to use as required, and for example described auxiliary agent is selected from least a in dispersion agent, defoamer or flow agent.
Wherein, described solvent is the mixture of methylcarbonate, diethyl carbonate, Methyl ethyl carbonate and Virahol.The present invention uses described mixed carbonate ester series solvent to substitute traditional organic solvent in described vacuum plating Special varnish, not only environmental protection, and can significantly improve the surface quality of coating, improve the solvent resistance of described metallic paint.
Compared with prior art, the present invention has following beneficial effect:
The excellent performances such as vacuum plating Special varnish weathering resistance of the present invention, corrosion-resistant and shock resistance, have in addition thickness, hardness is high and the wear resistance advantages of higher, be applicable to the parts that outdoor use appearance of film and over-all properties are had relatively high expectations, such as the application for surfaces such as automobile and motorcycles.
Embodiment
Vacuum plating Special varnish of the present invention comprises following component: acrylic resin: the Virahol of 20-28wt%, aminoresin: 20-27wt%, epoxy resin: 12-18wt%, flow agent: 1.5-2.5wt%, dispersion agent: 0.5-1.0wt%, methylcarbonate: 5-8wt%, diethyl carbonate: 5-8wt%, Methyl ethyl carbonate: 5-8wt% and surplus.
Preferably, described vacuum plating Special varnish comprises following component: the Virahol of (methyl) methyl acrylate: 20-28wt%, methyl etherified melamine resin: 20-27wt%, bisphenol A type epoxy resin: 12-18wt%, flow agent: 1.5-2.5wt%, dispersion agent: 0.5-1.0wt%, methylcarbonate: 5-8wt%, diethyl carbonate: 5-8wt%, Methyl ethyl carbonate: 5-8wt% and surplus.
Vacuum plating Special varnish of the present invention can be used by known coating processes such as hydraulic spraying, aerial spraying.The thickness of solidified coating is generally about 40um.The temperature that drying is cured is about 150 ℃, and the time is about 30min.
Raw materials used in embodiment, unless otherwise indicated, be the coating industrial goods, can buy from market.Related equipment is the coatings industry conventional equipment.At embodiments of the invention, in the mode of hand spray, apply, coupons adopts tinplate, adopt No. 500 sand paperings, rust cleaning and tin coating, it is of a size of 50 * 120 * (0.2-0.3) mm and (or adopts steel plate, be of a size of 70 * 150 * (0.6-0.8) mm.While passing through the execution conditions of hand spray in an embodiment of the present invention, the described processing parameter of employing table 2 applies.
The technical parameter of table 1 vacuum plating Special varnish of the present invention
| Project | Index | The method of inspection |
| Paint film appearance and color | Paint film is smooth, and is smooth | Range estimation |
| Non-volatile matter, % >= | 65 | GB/T6751-1986 |
| Viscosity, s | 60-70 | GB/T1723-1993 |
| Fineness, μ m≤ | 5 | GB/1724-1989 |
| Cross cut test≤ | 1 grade | GB/T9286-1998 |
| Hardness >= | 3H | GB/T6739-1996 |
| Snappiness, mm≤ | 1 | GB/T1731-1993 |
| Shock-resistance, cm | 50 | GB/T1732-1993 |
| Humidity resistance, 240h | Without abnormal | GB/T1740-1979 |
| Salt fog resistance, 720h | Without abnormal | GB/T1771-1991 |
Table 2 hand spray parameter
| Execution conditions | Hand spray |
| Thinner | Conventional thinner |
| Thinning ratio, % | 15-20 |
| Working viscosity, s | 17-20 |
| Spray pressure, MPa | 0.6-0.8 |
| Spray distance, cm | 15-20 |
| Flow time, min | ＞10 |
| Drying conditions | 150±2℃×30min |
The formula of the described metallic paint of embodiment 1-2 (S1-S2) and the proportioning of comparative example 1-2 are as shown in table 3.
Table 3
| Component | Material name | S1 | S2 | D1 | D2 |
| Acrylic resin | Methyl methacrylate | 20 | 28 | 20 | 28 |
| Aminoresin | Methyl etherified melamine resin | 27 | 20 | 27 | 20 |
| Epoxy resin | Bisphenol A type epoxy resin | 15 | 15 | 15 | 15 |
| Flow agent | EFKA-3777 | 1.5 | 2.5 | 1.5 | 2.5 |
| Dispersion agent | BYK-141 | 1.0 | 0.5 | 1.0 | 0.5 |
| Methylcarbonate | Methylcarbonate | 6 | 7 | 0 | 0 |
| Diethyl carbonate | Diethyl carbonate | 6 | 7 | 0 | 0 |
| Methyl ethyl carbonate | Methyl ethyl carbonate | 7 | 6 | 0 | 0 |
| Virahol | Virahol | Surplus | Surplus | 0 | 0 |
| Water | Water | 0 | 0 | Surplus | Surplus |
Tack according to GB/T9286-1998 cross cut test test S1-S2 and D1-D2; According to GB/T1771-1991 test salt fog resistance, test the time that it starts to occur the visible rusty stain of naked eyes.Test result is as shown in table 4.
Table 4
| Project | S1 | S2 | D1 | D2 |
| Cross cut test, level | 0 | 0 | 2 | 2 |
| Anti-machine oil, h | 1200 | 1500 | 500 | 400 |
For the ordinary skill in the art, be to be understood that and can without departing from the scope of the present disclosure, can adopt to be equal to and replace or equivalent transformation form enforcement above-described embodiment.Protection scope of the present invention is not limited to the specific embodiment of embodiment part, as long as no the embodiment that breaks away from invention essence, within all being interpreted as having dropped on the protection domain of requirement of the present invention.
Claims (6)
1. a vacuum plating Special varnish, is characterized in that comprising the acrylic resin of following component: 20-28wt%, the aminoresin of 20-27wt%, the auxiliary agent of 2.5-3.5wt%, the solvent of 20-35wt%.
2. vacuum plating Special varnish according to claim 1, is characterized in that described acrylic resin is selected from least a in (methyl) methyl acrylate, (methyl) vinylformic acid ethyl ester, (methyl) vinylformic acid propyl diester, (methyl) butyl acrylate cores, (methyl) Ethyl acrylate, (methyl) vinylformic acid (2-ethylhexyl) ester, (methyl) vinylformic acid n-octyl, (methyl) lauryl acrylate or (methyl) vinylformic acid stearyl.
3. vacuum plating Special varnish according to claim 1 and 2, is characterized in that described aminoresin is methyl etherified melamine resin or methyl-etherified hexamethylol melamine resin.
4. vacuum plating Special varnish according to claim 1 and 2, is characterized in that described auxiliary agent is dispersion agent and flow agent.
5. vacuum plating Special varnish according to claim 1, is characterized in that comprising following component: the Virahol of acrylic resin: 20-28wt%, aminoresin: 20-27wt%, epoxy resin: 12-18wt%, flow agent: 1.5-2.5wt%, dispersion agent: 0.5-1.0wt%, methylcarbonate: 5-8wt%, diethyl carbonate: 5-8wt%, Methyl ethyl carbonate: 5-8wt% and surplus.
6. vacuum plating Special varnish according to claim 1, it is characterized in that described vacuum plating Special varnish, comprise following component: the Virahol of (methyl) methyl acrylate: 20-28wt%, methyl etherified melamine resin: 20-27wt%, bisphenol A type epoxy resin: 12-18wt%, flow agent: 1.5-2.5wt%, dispersion agent: 0.5-1.0wt%, methylcarbonate: 5-8wt%, diethyl carbonate: 5-8wt%, Methyl ethyl carbonate: 5-8wt% and surplus.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310280168.8A CN103396714B (en) | 2013-07-05 | 2013-07-05 | Vacuum plating special varnish |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310280168.8A CN103396714B (en) | 2013-07-05 | 2013-07-05 | Vacuum plating special varnish |
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| CN103396714A true CN103396714A (en) | 2013-11-20 |
| CN103396714B CN103396714B (en) | 2015-10-14 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104448984A (en) * | 2014-11-21 | 2015-03-25 | 无锡市虎皇漆业有限公司 | Thermosetting acrylic acid finishing paint and preparation method thereof |
| CN108912884A (en) * | 2018-06-19 | 2018-11-30 | 界首市创新门窗有限公司 | A kind of alum gate column anticorrosive paint |
| CN108944828A (en) * | 2018-06-12 | 2018-12-07 | 广西速道汽车维修服务有限公司 | A kind of method of restoring automobile wheel hub scratch |
| CN110041796A (en) * | 2019-04-02 | 2019-07-23 | 安徽省欣雨环卫机械有限公司 | A kind of electronic automobile-used acid and alkali-resistance coating of environmental sanitation and preparation method thereof |
| CN111454656A (en) * | 2020-04-29 | 2020-07-28 | 杭州临安兴旺电镀有限公司 | Environment-friendly electroplating paint and preparation method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009028689A (en) * | 2007-07-30 | 2009-02-12 | Nippon Paint Co Ltd | Coat forming method |
| CN101445690B (en) * | 2008-12-23 | 2011-02-16 | 湖南湘江关西涂料有限公司 | Acrylic-amino finish varnish for automobile external coating |
| CN101538441B (en) * | 2009-01-24 | 2011-05-04 | 江苏考普乐新材料股份有限公司 | Improved amino baking varnish inverse emulsion, preparation method thereof, and method for preparing baking varnish coating by using improved amino baking varnish inverse emulsion |
-
2013
- 2013-07-05 CN CN201310280168.8A patent/CN103396714B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104448984A (en) * | 2014-11-21 | 2015-03-25 | 无锡市虎皇漆业有限公司 | Thermosetting acrylic acid finishing paint and preparation method thereof |
| CN108944828A (en) * | 2018-06-12 | 2018-12-07 | 广西速道汽车维修服务有限公司 | A kind of method of restoring automobile wheel hub scratch |
| CN108912884A (en) * | 2018-06-19 | 2018-11-30 | 界首市创新门窗有限公司 | A kind of alum gate column anticorrosive paint |
| CN110041796A (en) * | 2019-04-02 | 2019-07-23 | 安徽省欣雨环卫机械有限公司 | A kind of electronic automobile-used acid and alkali-resistance coating of environmental sanitation and preparation method thereof |
| CN111454656A (en) * | 2020-04-29 | 2020-07-28 | 杭州临安兴旺电镀有限公司 | Environment-friendly electroplating paint and preparation method thereof |
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| CN103396714B (en) | 2015-10-14 |
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