CN100588691C - Coating for UV cured plastic and use - Google Patents
Coating for UV cured plastic and use Download PDFInfo
- Publication number
- CN100588691C CN100588691C CN200810142297A CN200810142297A CN100588691C CN 100588691 C CN100588691 C CN 100588691C CN 200810142297 A CN200810142297 A CN 200810142297A CN 200810142297 A CN200810142297 A CN 200810142297A CN 100588691 C CN100588691 C CN 100588691C
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- plastics
- coating
- acrylic resin
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- solidified paint
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Abstract
The invention relates to a UV cured coating used for plastics, and purposes thereof. The composition of the coating by the weight percent is as follows: 25 to 50 of hexa-functional polyurethane acrylic acid resin, 10 to 20 of trifunctional polyurethane acrylic acid resin, 10 to 20 of acrylic acid resin, 10 to 20 of trimethylolpropane 3-acrylic ester, 2 to 5 of N-methyl diethano lamine, 2 to 5 of UV absorbent, 0.4 to 13 of assistant, and 10 to 30 of mixed solvent. When the coating is used, the components are evenly mixed by the proportion and spray coated on plastic work pieces, and then curedby a UV curing machine. The coating of the invention can be used for coating of ABS and PC plastics. The coating is characterized by high hardness, good wear resistance, hard object scratching resistance, high lustrousness, no pollution to the environment, etc.
Description
[technical field]
The present invention relates to coating, the plastics that particularly relate to a kind of compliance with environmental protection requirements are coating material solidified with UV.
[background technology]
Plastics are used very extensive in current society, particularly plastics such as ABS are widely used in phone housing, notebook computer, camera, motorcycle part, cosmetic package etc.Along with the widespread use of plastics, the covering with paint of frosting is also increasing.The purpose that plastics are covered with paint, lacquer, colour wash, etc. is to improve its weathering resistance, chemical resistant properties and surface hardness, reduces insulating property, prevents adhesivity and dirt resistance, improve hand feel performance, and improve the artistic effect of decorating, make the frosting color abundanter, more satin is full, has stereoscopic sensation etc. more.Traditional plastics are covered with paint, lacquer, colour wash, etc. thermoplastic acrylic paints or the bicomponent polyurethane coatings of adopting more, and this class coating exists the wear resistance deficiency, damage resistant not, problems such as production efficiency is low, and chemical-resistant is poor, and environmental pollution is big.
[summary of the invention]
The present invention is intended to address the above problem, and a kind of hardness height of coating is provided, and wear resistance is good, and anti-hard thing scratches glossiness height, UV solidified paint for plastics free from environmental pollution.
The present invention also aims to provide the purposes of this coating.
For achieving the above object, the invention provides a kind of UV (ultraviolet ray) solidified paint for plastics, this coating consisting of by weight percentage:
Six functional polyurethanes acrylic resins 25～50
Trifunctional polyurethane acrylic resin 10～20
Acrylic resin 10～20
Viscoat 295 10～20
N methyldiethanol amine 2～5
UV light absorber 2～5
Auxiliary agent 0.4～13
Mixed solvent 10～30.
The preferred weight percent of this coating consists of:
Six functional polyurethanes acrylic resins 30
Trifunctional polyurethane acrylic resin 13
Acrylic resin 13
Viscoat 295 13
N methyldiethanol amine 3
UV light absorber 3
Auxiliary agent 10
Mixed solvent 15.
Described auxiliary agent is one or more the combination in flow agent, defoamer, dispersion agent, the matting agent.The weight percent content of this auxiliary agent in coating is:
Flow agent 0.2～1
Defoamer 0.2～1
Dispersion agent 0.2～1
Matting agent 5～10.
Described six functional polyurethanes acrylic resins are the aliphatic polyurethane acrylic resin, and its molecular weight is 800, and solid content is 100%, and elongation is 4%, and tensile strength is 9100Psi, and it can provide excellent hardness and wear resistance for coating.
The trifunctional polyurethane acrylic resin is the aliphatic polyurethane acrylic resin, and its molecular weight is 2000, and solid content is 100%.Elongation is 37%, and tensile strength is 4200Psi, and it can be coating certain impact resistance is provided.
Acrylic resin contains 25% tripropylene glycol diacrylate and 25% 1.6 hexanediyl esters, and its elongation is 52%, and tensile strength is 1900Psi, and it can be coating excellent sticking power is provided.
Described defoamer is broken bubble polymkeric substance and organopolysiloxane solution, and it can suppress and eliminate the steam bubble that produces in production or construction process; Described flow agent is an organosilicon, and specifically, it can be a kind of polyether-modified polydimethylsiloxane, and it is smooth wetting with the improvement ground that it can effectively promote the surface, prevents shrinkage cavity; Described dispersion agent is a kind of high molecular polyether polyols with reduced unsaturation, and it can make matting agent evenly arrange in coating, shortens jitter time; Described matting agent is a kind of aerosil powder, and particle diameter is 6～7 μ m, and handle with wax on the surface, and it can make coatingsurface obtain soft uniform gloss.
The composition of mixed solvent and weight percent content are:
N-BUTYL ACETATE 20～40
Vinyl acetic monomer 20～40
Butanone 20～40
Ethylene glycol monobutyl ether 5～15
This coating is sprayed at described component on the plastics part after evenly by described mixed in use, solidifies with the UV photo solidification machine then.
The present invention also provides the purposes of UV solidified paint for plastics, and it can be used for the covering with paint of ABS, PC plastics.
Contribution of the present invention is that it efficiently solves traditional plastics and covers with paint, lacquer, colour wash, etc. the defective of using coating.UV photo-cured coating of the present invention does not contain volatile organic compounds (VOC), and free from environmental pollution, curing speed is fast, can be suitable for the covering with paint of plastics part in ambient cure, and not produce thermal distortion, the production efficiency height, save the energy, cured product performance good, be suitable for high-speed automated production.Because this coating is by ultraviolet light polymerization, its energy expenditure is about 1/5 of traditional drying-type heat curing coating.Because the cross-linking density behind the UV paint solidification is much higher than hot baking type coating, so the hardness height of coating, wear resistance is good, and anti-hard thing scratches the glossiness height.
[embodiment]
The following example does not constitute any limitation the present invention further explanation of the present invention and explanation.
Embodiment 1～4 is as shown in table 1:
Table 1
| Component | Embodiment 1 (weight %) | Embodiment 2 (weight %) | Embodiment 3 (weight %) | Embodiment 4 (weight %) |
| Six sense aliphatic polyurethane acrylic resins (Eb1290 type) | 25 | 30 | 20 | 25 |
| Trifunctional aliphatic polyurethane acrylic resin (Eb264 type) | 20 | 15 | 20 | 15 |
| Acrylic resin (Eb745 type) | 10 | 10 | 10 | 10 |
| Viscoat 295 (TMPTA type) | 10 | 10 | 8 | 8 |
| Flow agent (polyether-modified dimethyl siloxane) (BYK333 type) | 0.5 | 0.5 | 0.5 | 0.5 |
| Defoamer (froth breaking polymkeric substance and polysiloxane solution) (BYK141 type) | 0.5 | 0.5 | 0.5 | 0.5 |
| Dispersion agent (high molecular urethane) (EFKA4050 type) | / | / | 0.5 | 0.5 |
| Matting agent (aerosil) (Acematt-OK500 type) | / | / | 6 | 6 |
| Benzophenone | 4 | 4 | 4 | 4 |
| N methyldiethanol amine | 4 | 4 | 4 | 4 |
| Mixed solvent (N-BUTYL ACETATE: vinyl acetic monomer: butanone: ethylene glycol monobutyl ether=30: 30: 30: 10) | 26 | 26 | 27 | 27 |
This coating adds each component of arbitrary proportioning of embodiment in the table 1 1～4 in the container in described ratio in use, is sprayed on the PC plastics after mixing under agitation condition, 60 ℃ of bakings 3 minutes, uses 600mj/cm then
2The UV photo solidification machine is cured, and obtains coating.Its performance such as table 2:
Table 2
| Example 1 | Example 2 | Example 3 | Example 4 | |
| The last sticking power of PC | 5B | 5B | 5B | 5B |
| RCA | 600 | 800 | 400 | 600 |
| 60 degree gloss | 92％ | 92％ | 25％ | 25％ |
| Pencil hardness | H | 2H | H | 2H |
| MEK wipes formula | 200 | 250 | 150 | 200 |
| The wipes of alcohol formula | 400 | 500 | 300 | 400 |
Claims (8)
1, a kind of UV solidified paint for plastics is characterized in that, its consisting of by weight percentage:
Six functional polyurethanes acrylic resins 25～50
Trifunctional polyurethane acrylic resin 10～20
Acrylic resin 10～20
Viscoat 295 10～20
N methyldiethanol amine 2～5
UV light absorber 2～5
Auxiliary agent 0.4～13
Mixed solvent 10～30,
Described acrylic resin contains 25% tripropylene glycol diacrylate and 25% 1.6 hexanediyl esters, and its elongation is 52%, and tensile strength is 1900Psi.
2, UV solidified paint for plastics as claimed in claim 1 is characterized in that, its consisting of by weight percentage:
Six functional polyurethanes acrylic resins 30
Trifunctional polyurethane acrylic resin 13
Acrylic resin 13
Viscoat 295 13
N methyldiethanol amine 3
UV light absorber 3
Auxiliary agent 10
Mixed solvent 15.
3, UV solidified paint for plastics as claimed in claim 1 is characterized in that, described auxiliary agent is one or more the combination in flow agent, defoamer, dispersion agent, the matting agent.
4, UV solidified paint for plastics as claimed in claim 3 is characterized in that, the weight percent content of described auxiliary agent in coating is:
Flow agent 0.2～1
Defoamer 0.2～1
Dispersion agent 0.2～1
Matting agent 5～10.
5, UV solidified paint for plastics as claimed in claim 1 is characterized in that, described six functional polyurethanes acrylic resins are the aliphatic polyurethane acrylic resin, its molecular weight is 800, solid content is 100%, and elongation is 4%, and tensile strength is 9100Psi; Described trifunctional polyurethane acrylic resin is the aliphatic polyurethane acrylic resin, and its molecular weight is 2000, and solid content is 100%.Elongation is 37%, and tensile strength is 4200Psi.
6, UV solidified paint for plastics as claimed in claim 3 is characterized in that, described defoamer is an organosilicon, and described flow agent is an organosilicon, and described dispersion agent is a urethane; Described matting agent is an aerosil.
7, UV solidified paint for plastics as claimed in claim 1 is characterized in that the composition of described mixed solvent and weight percent content are:
N-BUTYL ACETATE 20～40
Vinyl acetic monomer 20～40
Butanone 20～40
Ethylene glycol monobutyl ether 5～15
8, UV solidified paint for plastics as claimed in claim 1 is characterized in that, this coating is sprayed at described component on the plastics part after evenly by described mixed in use, solidifies with the UV photo solidification machine then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810142297A CN100588691C (en) | 2008-08-11 | 2008-08-11 | Coating for UV cured plastic and use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810142297A CN100588691C (en) | 2008-08-11 | 2008-08-11 | Coating for UV cured plastic and use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101338088A CN101338088A (en) | 2009-01-07 |
| CN100588691C true CN100588691C (en) | 2010-02-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810142297A Expired - Fee Related CN100588691C (en) | 2008-08-11 | 2008-08-11 | Coating for UV cured plastic and use |
Country Status (1)
| Country | Link |
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| CN (1) | CN100588691C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102206457B (en) * | 2010-03-31 | 2014-09-17 | 东莞市佩琦涂料有限公司 | Wear resistant and chemical resistant rubber oil |
| CN102558927A (en) * | 2011-07-01 | 2012-07-11 | 深圳市美丽华油墨涂料有限公司 | UV cured metallic paint for plastics |
| CN102533067B (en) * | 2011-07-01 | 2014-09-10 | 深圳市美丽华油墨涂料有限公司 | Ultraviolet (UV) cured plastic coating |
| CN102898940A (en) * | 2012-11-14 | 2013-01-30 | 无锡卡秀堡辉涂料有限公司 | Solvent-based coating for preventing black coffee pollution and production method thereof |
| CN104140724B (en) * | 2014-07-23 | 2016-06-08 | Ppg涂料(天津)有限公司 | Multilayer coating system, painting method and the substrate through its coating |
| CN105505092A (en) * | 2015-12-25 | 2016-04-20 | 澳达树熊涂料(惠州)有限公司 | Odorless and wear-resisting smooth UV (ultraviolet) matt finish paint coating and preparation method thereof |
| CN106957597B (en) * | 2017-04-17 | 2020-03-24 | 深圳市美丽华油墨涂料有限公司 | UV curing coating and preparation method and application thereof |
| CN107118684A (en) * | 2017-06-13 | 2017-09-01 | 深圳市美丽华油墨涂料有限公司 | A kind of coating material solidified and preparation method thereof the applications of anti-soil type UV |
| CN109181447A (en) * | 2018-08-15 | 2019-01-11 | 东莞市佩琦涂料有限公司 | A kind of optical curing of UV coating and preparation method thereof |
| CN113683911B (en) * | 2021-08-23 | 2022-09-27 | 昆山大世界油墨涂料有限公司 | Ultraviolet light hardening type matte gloss oil capable of being subjected to plastic absorption and preparation method and application thereof |
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2008
- 2008-08-11 CN CN200810142297A patent/CN100588691C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101338088A (en) | 2009-01-07 |
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Address after: 518103, Guangdong, Baoan District, Fuyong Shenzhen street, Fung Tong Avenue and Yonghe Road intersection Patentee after: Shenzhen beautiful Polytron Technologies Inc Address before: At the junction of 518103 Guangdong city of Shenzhen province Baoan District Fuyong Zhen Feng Tong Road and Yonghe Road (Beverly industrial park opposite) Patentee before: Shenzhen Meilihua Ink & Coating Co., Ltd. |
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Granted publication date: 20100210 Termination date: 20190811 |