CN103756538A - Ultra-quick drying varnish used for automobiles - Google Patents
Ultra-quick drying varnish used for automobiles Download PDFInfo
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- CN103756538A CN103756538A CN201310683059.0A CN201310683059A CN103756538A CN 103756538 A CN103756538 A CN 103756538A CN 201310683059 A CN201310683059 A CN 201310683059A CN 103756538 A CN103756538 A CN 103756538A
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Abstract
The invention discloses an ultra-quick drying varnish used for automobiles. The ultra-quick drying varnish comprises a paint part and a curing agent part; the paint part comprises following ingredients, by weight, 60 to 80 parts of modified acrylic resin, 0.2 to 2 parts of an antifoaming agent, 0.2 to 2 parts of a levelling agent, 1 to 5 parts of a light stabilizer, 1 to 3 parts of an ultraviolet light absorber, and 15 to 35 parts of an organic solvent; the curing agent part is prepared from a curing agent and an organic solvent. Compared with common acrylic polyurethane paint, early stage reaction speed of the ultra-quick drying varnish at room temperature is quicker; and the ultra-quick drying varnish is capable of shortening construction period, so that construction efficiency of automobile repairing is increased, heat drying time is shortened, even heat drying is not needed, and energy consumption and labor hour are reduced. Compared with similar products of domestic and overseas, the ultra-quick drying varnish possesses pertinency, and clear directivity, and is capable of satisfying market demands.
Description
Technical field
The invention belongs to and relate to a kind of automotive varinishing enamel field, be specifically related to super rapid-drying varnish of a kind of car repair modified acrylic polyurethane and preparation method thereof.
Background technology
On January 20th, 2009, domestic product goes out the 1,000 ten thousand automobile in the current year, after the U.S. and Japan, becomes third place in the world and possesses the country that produces 1000 ten thousand automobiles per year.2008, Chinese automobile sales volume reached 938.05 ten thousand, than 2007, increased by 6.7%.Under the background of financial crisis, Chinese automobile volume of production and marketing still allows the world regard with special esteem, keeps good market temperature.But, with the U.S., to compare with Japan, the popularity rate of Chinese automobile is also quite low, only has at present 5% left and right.
Although Chinese automobile popularity rate cannot reach the height (environment of China probably also bears and do not come) as the U.S. but as long as Chinese automobile popularity rate increases by 1%, just can bring the automobile demand of 1,300 ten thousand in a short time.So huge data, have stimulated the nerve of world car production firm consumingly.Equally, the production firms of the automobile related products including car paint also go after like a flock of ducks, and found the factory one after another to China.By 2012, Chinese automobile volume of production and marketing exceeded 1,900 ten thousand, needed altogether 760,000 tons of left and right of car paint, and wherein new automobile lacquer is about 400,000 tons, approximately 150,000 tons of retouching paints, approximately 210,000 tons of component paint and PVC stone-impact-proof paints.
Along with national economy is visited end rise, estimate that domestic car market in 2013 will be better than the first two years.Automobile sales volume has a big increase between 5% to 10%, breaks through 20,000,000 high pointes and has no suspense.Within 2013, Chinese automobile recoverable amount chases after U.S. in super day, and private car crosses hundred million.At present, in car refinishing paint market, the market share of 75% left and right is captured by home brands, is mainly middle and low-end market, and the basic or external import paint in most advanced and sophisticated market is main.
Along with social fast development, people's life, rhythm of production are also in continuous quickening, simultaneously for energy-saving consumption-reducing, increase work efficiency, Auto repair shop all requires to improve the rate of drying of paint film, after constructing 6 hours, just can hand over car under standard temperature, than traditional product, raises the efficiency more than 2 times.
Summary of the invention
The object of the invention is on the basis of existing technology, provide a kind of ultrafast net gas automobile-used varnish, it has excellent ornamental, good weathering resistance and application property, outstanding quick-drying, is specially adapted to the application of car repair.
Object of the present invention can reach by following measures:
The automobile-used varnish of a kind of ultrafast net gas, it comprises coating part and curing agent part, wherein said coating part is formulated by the component of following weight parts: acrylic resin modified 60～80 parts, 0.2～2 part of defoamer, 0.2～2 part of flow agent, 1～5 part of photostabilizer, 1～3 part of UV light absorber, 15～35 parts of organic solvents; Described curing agent part is made into by solidifying agent and organic solvent.
In the present invention, coating part is preferably formulated by the component of following weight parts: acrylic resin modified 65～75 parts, and 0.5～1 part of defoamer, 0.5～1.5 part of flow agent, 3～4 parts of photostabilizers, 1.5～2 parts of UV light absorber, 20～30 parts of organic solvents.
Solidifying agent in curing agent part in the present invention and the weight ratio of organic solvent are 60～70:30～40.
When this varnish is used, first, second component be mixed in proportion and stir or be adjusted to the viscosity needing, then can construct by the method for spraying.Wherein the weight ratio of coating part and curing agent part is 3～5:1, preferably 4:1.
Resin in the present invention adopts acrylic resin modified SETALUX 1280SS-60, is liquid under its normal temperature.
Defoamer in the present invention is organically-modified silica alkane defoamer, preferably adopts AFCONA2045.
Flow agent in the present invention is silicone based flow agent, preferably adopts BYK-306.
Photostabilizer in the present invention is hindered amine type light stabilizer, preferably adopts HALPS 292.
UV light absorber in the present invention is liquid hydroxybenzotriazole type UV light absorber, preferably adopts UV1130.
Solidifying agent in the present invention is HDI tripolymer, preferably adopts Bayer3390.
Organic solvent (comprising the organic solvent in coating part and curing agent part) in the present invention is selected from multiple in dimethylbenzene, positive butyl ester and PMA.Further, organic solvent is mixed by weight 4～6:2～4:2 by dimethylbenzene, positive butyl ester and PMA.Most preferred, in organic solvent, the weight ratio of dimethylbenzene, positive butyl ester and PMA is 5:3:2.
The preparation method of the automobile-used varnish of ultrafast net gas of the present invention is as follows:
Coating part is formulated by the following method: (1) mixes modified hydroxyl acrylic resin, flow agent, photostabilizer, UV light absorber and organic solvent; (2) in step (1) gained liquid, add while stirring defoamer, high speed dispersion fully mixes it;
Solidifying agent is formulated by the following method: solidifying agent is mixed with organic solvent.
During construction, first above-mentioned component second is mixed by formula ratio with component first, then according to construction requirement more further adjusting viscosity to working viscosity, be then evenly sprayed on workpiece to be coated with.
The present invention is super, and rapid-drying varnish has following characteristics:
(1) coating employing of the present invention is acrylic resin modified, can give ornamental, the rapid drying of paint film excellence under the coordinated of other each components of the present invention, and excellent weathering resistance;
(2) coating of the present invention possesses good snappiness under the cooperation of each component, can prevent paint film cracking, comes off;
(3) coating of the present invention has outstanding moisture resistance under the cooperation of each component, place in distilled water after 10 days, paint film without variable color, the phenomenon such as bubble, come off, and water-intake rate is less than 1%.
(4) coating of the present invention has good application property, and film Air drying, surface drying soon, are not stained with dirt, greatly shortens time of drying.
(5) doing solid work of coating of the present invention is not more than 4hr, and resistance to artificial accelerated aging (UVA) 800 hours is without chalk masking.
Coating of the present invention compared with common acroleic acid polyurethane coating, at normal temperatures its early stage speed of response faster, shortened construction period, thereby improved the operating efficiency of car repair, reduce the heated baking time, even do not need heated baking, thereby saved energy consumption and man-hour.The present invention has more specific aim, clear and definite compared to similar products at home and abroad directive property, more can fit the demand in market.
Embodiment
Below in conjunction with embodiment, the present invention will be further described.
The organic solvent adopting in following each example or mixed solvent mix by weight 5:3:2 by dimethylbenzene, positive butyl ester and PMA.Coating part is called for short component second, and curing agent part is called for short component first.Acrylic resin modified employing SETALUX1280SS-60.Organically-modified silica alkane defoamer adopts AFCONA2045.Silicone based flow agent adopts BYK-306.Hindered amine type light stabilizer adopts HALPS 292.UV light absorber adopts UV1130.Solidifying agent adopts Bayer3390.
Embodiment 1
The super rapid-drying varnish component second of the present embodiment comprises (weight part, lower same): 65 parts acrylic resin modified, 0.5 part of organic-silicon-modified silicone antifoam agent, 1 part of silicone based flow agent, 3 parts of photostabilizers, 1.5 parts of UV light absorber, the mixed solvent of 30 parts of dimethylbenzene, positive butyl ester and PMA.
Its preparation method is: (1) is acrylic resin modified by 65 parts, 1 part of silicone based flow agent, 3 parts of photostabilizers, 1.5 parts of UV light absorber, the mixed solvent of 30 parts of dimethylbenzene, positive butyl ester and PMA joins in container, with high speed dispersor dispersion 20-30 minute, it is mixed, stir speed (S.S.) is controlled at 800～1200 revs/min.(2)) 0.5 part of organic-silicon-modified silicone antifoam agent is joined in (1) of stirring, continue high speed dispersion 20-30 minute, paint vehicle is mixed, obtain the coating part second of product of the present invention.
Component first method for making: in proportion 40 parts of 60 parts, HDI solidifying agent and above-mentioned dimethylbenzene, positive butyl ester and PMA mixed solvents are stirred, obtain curing agent part first.
During use, component second and component first are by weight the proportioning mixing and stirring of 4:1 and be adjusted to working viscosity, be sprayed on tinplate and sheet glass, place in thermostatic constant wet chamber's (23 ± 2 ℃, 50 ± 5%) and dry and select the corresponding adjusting time by technical indicator, record all technical in Table 1.
Embodiment 2
The super rapid-drying varnish component second of the present embodiment comprises (weight part, lower same): 70 parts acrylic resin modified, 1 part of organic-silicon-modified silicone antifoam agent, 1 part of silicone based flow agent, 3 parts of photostabilizers, 1.5 parts of UV light absorber, the mixed solvent of 25 parts of dimethylbenzene, positive butyl ester and PMA.
Its preparation method is: (1) is acrylic resin modified by 70 parts, 1 part of silicone based flow agent, 3 parts of photostabilizers, 1.5 parts of UV light absorber, the mixed solvent of 25 parts of dimethylbenzene, positive butyl ester and PMA joins in container, with high speed dispersor dispersion 20-30 minute, it is mixed, stir speed (S.S.) is controlled at 800～1200 revs/min.(2)) 1 part of organic-silicon-modified silicone antifoam agent is joined in (1) of stirring, continue high speed dispersion 20-30 minute, paint vehicle is mixed, obtain the coating part second of product of the present invention.
Component first method for making: in proportion 35 parts of 65 parts, HDI solidifying agent and above-mentioned dimethylbenzene, positive butyl ester and PMA mixed solvents are stirred, obtain curing agent part first.
During use, component second and component first are by weight the proportioning mixing and stirring of 4:1 and be adjusted to working viscosity, be sprayed on tinplate and sheet glass, place in thermostatic constant wet chamber's (23 ± 2 ℃, 50 ± 5%) and dry and select the corresponding adjusting time by technical indicator, record all technical in Table 1.
Embodiment 3
The super rapid-drying varnish component second of the present embodiment comprises (weight part, lower same): 75 parts acrylic resin modified, 1 part of organic-silicon-modified silicone antifoam agent, 1 part of silicone based flow agent, 4 parts of photostabilizers, 2 parts of UV light absorber, the mixed solvent of 20 parts of dimethylbenzene, positive butyl ester and PMA.
Its preparation method is: (1) is acrylic resin modified by 75 parts, 1 part of silicone based flow agent, 4 parts of photostabilizers, 2 parts of UV light absorber, the mixed solvent of 20 parts of dimethylbenzene, positive butyl ester and PMA joins in container, with high speed dispersor dispersion 20-30 minute, it is mixed, stir speed (S.S.) is controlled at 800～1200 revs/min.(2)) 1 part of organic-silicon-modified silicone antifoam agent is joined in (1) of stirring, continue high speed dispersion 20-30 minute, paint vehicle is mixed, obtain the coating part second of product of the present invention.
Component first method for making: in proportion 30 parts of 70 parts, HDI solidifying agent and above-mentioned dimethylbenzene, positive butyl ester and PMA mixed solvents are stirred, obtain curing agent part first.
During use, component second and component first are by weight the proportioning mixing and stirring of 4:1 and be adjusted to working viscosity, be sprayed on tinplate and sheet glass, place in thermostatic constant wet chamber's (23 ± 2 ℃, 50 ± 5%) and dry and select the corresponding adjusting time by technical indicator, record all technical in Table 1.
Comparative example 1
The formula and the preparation method that adopt embodiment 1, change resin into Hydroxylated acrylic resin Desmophen A870BA by SETALUX1280SS-60, and test its correlated performance data, the results are shown in Table 2.
With reference to the countries concerned or industry standard, above specific embodiment is carried out to Performance Detection, result is as table 1
Table 1
Table 2
| Test item | SETALUX?1280?SS-60 | Desmophen?A870BA |
| Film thickness um | 18-21 | 17-20 |
| / 30 points of pencil hardnesss of 80 degree | F | 2B |
| / 30 points of pendulum-rocker hardnesss of 80 degree | 0.88 | 0.78 |
| / 30 points of pencil hardnesss of 50 degree | 2B | 5B |
| / 30 points of pendulum-rocker hardnesss of 50 degree | 0.62 | 0.42 |
| Surface drying time/25 degree min | 5 | 13 |
| Do solid work time/25 degree HR | 2.5 | 7 |
Claims (10)
1. the automobile-used varnish of ultrafast net gas, it is characterized in that it comprises coating part and curing agent part, wherein said coating part is formulated by the component of following weight parts: acrylic resin modified 60～80 parts, 0.2～2 part of defoamer, 0.2～2 part of flow agent, 1～5 part of photostabilizer, 1～3 part of UV light absorber, 15～35 parts of organic solvents; Described curing agent part is made into by solidifying agent and organic solvent.
2. the automobile-used varnish of ultrafast net gas according to claim 1, it is characterized in that described coating part is formulated by the component of following weight parts: acrylic resin modified 65～75 parts, 0.5～1 part of defoamer, 0.5～1.5 part of flow agent, 3～4 parts of photostabilizers, 1.5～2 parts of UV light absorber, 20～30 parts of organic solvents.
3. the automobile-used varnish of ultrafast net gas according to claim 1, is characterized in that solidifying agent in described curing agent part and the weight ratio of organic solvent are 60～70:30～40.
4. the automobile-used varnish of ultrafast net gas according to claim 1, the weight ratio that it is characterized in that described coating part and curing agent part is 3～5:1.
5. the automobile-used varnish of ultrafast net gas according to claim 1 and 2, is characterized in that described acrylic resin modified SETALUX 1280 SS-60 of being.
6. the automobile-used varnish of ultrafast net gas according to claim 1 and 2, is characterized in that described defoamer is organically-modified silica alkane defoamer; Described flow agent is silicone based flow agent; Described photostabilizer is hindered amine type light stabilizer; Described UV light absorber is liquid hydroxybenzotriazole type UV light absorber.
7. the automobile-used varnish of ultrafast net gas according to claim 6, is characterized in that described defoamer is organically-modified silica alkane defoamer AFCONA2045; Described flow agent is silicone based flow agent BYK-306; Described photostabilizer is hindered amine type light stabilizer HALPS 292; Described UV light absorber is UV1130.
8. according to the automobile-used varnish of ultrafast net gas described in claim 1,2 or 3, it is characterized in that described organic solvent is selected from multiple in dimethylbenzene, positive butyl ester and PMA; Described solidifying agent is HDI tripolymer.
9. the automobile-used varnish of ultrafast net gas according to claim 8, is characterized in that described organic solvent is mixed by weight 4～6:2～4:2 by dimethylbenzene, positive butyl ester and PMA; Described solidifying agent is HDI tripolymer Bayer3390.
10. the automobile-used varnish of ultrafast net gas according to claim 1 and 2, is characterized in that described coating part is formulated by the following method: (1) mixes modified hydroxyl acrylic resin, flow agent, photostabilizer, UV light absorber and organic solvent; (2) in step (1) gained liquid, add while stirring defoamer, high speed dispersion fully mixes it; Described solidifying agent is formulated by the following method: solidifying agent is mixed with organic solvent.
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| CN201310683059.0A CN103756538A (en) | 2013-12-12 | 2013-12-12 | Ultra-quick drying varnish used for automobiles |
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Cited By (8)
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| CN105925169A (en) * | 2016-04-15 | 2016-09-07 | 惠州市德莱仕科技有限公司 | Low-energy UV-curing automotive refinishing paint as well as application and usage method thereof |
| CN106243968A (en) * | 2016-10-09 | 2016-12-21 | 广州福田新狮涂料有限公司 | A kind of coating varnish and preparation method thereof |
| CN106700779A (en) * | 2016-12-19 | 2017-05-24 | 广东科迪新材料科技有限公司 | High-glossiness antistatic type automobile refinishing paint containing graphene modified resin |
| CN108047924A (en) * | 2017-12-06 | 2018-05-18 | 浙江树人学院（浙江树人大学） | It is a kind of to strengthen weather-proof coating varnish and preparation method and application |
| CN108178973A (en) * | 2017-11-27 | 2018-06-19 | 雅图高新材料有限公司 | A kind of very fast automobile multifunctional floating coating and preparation method thereof |
| CN109679449A (en) * | 2018-12-17 | 2019-04-26 | 西北工业大学 | The preparation method of metal parts, surface varnish and surface varnish |
| CN109722156A (en) * | 2018-12-28 | 2019-05-07 | 东来涂料技术（上海）股份有限公司 | A kind of quick-dry type car refinishing paint bloom varnish and preparation method thereof |
| CN115926556A (en) * | 2022-12-21 | 2023-04-07 | 芜湖春风新材料有限公司 | Selective electroplated part protective varnish for automobile air inlet grille and preparation method and use method thereof |
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| CN109722156A (en) * | 2018-12-28 | 2019-05-07 | 东来涂料技术（上海）股份有限公司 | A kind of quick-dry type car refinishing paint bloom varnish and preparation method thereof |
| CN115926556A (en) * | 2022-12-21 | 2023-04-07 | 芜湖春风新材料有限公司 | Selective electroplated part protective varnish for automobile air inlet grille and preparation method and use method thereof |
| CN115926556B (en) * | 2022-12-21 | 2023-11-07 | 芜湖春风新材料有限公司 | Protective varnish for selective electroplated part of automobile air inlet grille, preparation method and use method |
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Effective date of abandoning: 20170908 |