CN102585689B - Voltage-withstand photo-cured anode oxidation coating, as well as preparation method and using method thereof - Google Patents
Voltage-withstand photo-cured anode oxidation coating, as well as preparation method and using method thereof Download PDFInfo
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Abstract
The application of the invention provides a voltage-withstand photo-cured anode oxidation coating, as well as a preparation method and a using method thereof. The coating comprises the following components in parts by weight: 25-40 parts of solvent type modified polyurethane acrylate, 5-15 parts of epoxy acrylate, 10-20 parts of polyurethane, 10-20 parts of dipentaerythritol hexaacrylate, 0-20 parts of trimethylolpropane triacrylate, 0.5-2 parts of polyether silane copolymer, 10-20 parts of mixed solvent, 3-6 parts of chloro-modified siloxane, 2-5 parts of butyl acetate, 3-6 parts of phosphate ester modified triacrylate, 1-3 parts of propyl-trimethyl silane coupling agent, 1-2 parts of 1-hydroxycyclohexyl phenyl ketone and 0.1-0.5 part of dibutyltin laurate. The coating has the characteristics of safety, environmental protection, easiness in construction, excellent adhesion force, high fullness, strong appearance decoration, water resistance, chemical resistance and the like of the photo-cured coating, can withstand voltage of 5KV, has low content of VOC (voltage organic compounds) and is of the environment-friendly coating with fast curing speed and high performances.
Description
Technical field
The present patent application relates to a kind of proof voltage photo-cured anode oxidation coating and preparation and application thereof, belongs to chemistry painting industry technical field.
Background technology
Anodic oxidation is the method for the aluminum alloy surface processing that at present fundamental sum is the most general, can be divided into common anode oxidation and hard anodizing.Painted the obtained look film of aluminium and aluminium alloy electrolysis has good wear-resisting, sun-proof, heat-resisting and solidity to corrosion, is widely used in the decoration corrosion protection of modern architecture aluminium section bar.In addition, the aluminium after antianode oxidation carries out electrolytic coloring, can improve decorative effect and commodity value.In coming 10 years, anodizing technology will be main surface treatment method, but Technology need improve constantly, to realize the hardness of oxidation rate and Geng Gao faster.
Coating on anodic oxidation material, mainly contains three kinds in the market, and the first is electrophoretic paint, and the second is five metals baking vanish, and the third is five metals polyurethane paint.
1, electrophoretic paint brief introduction:
Electrophoretic paint is as the coating of the low pollution of a class, province's energy, resource-saving, protection and non-corrosibility; there is smooth coating; the features such as water tolerance and chemical resistant properties are good; easily realize mechanize and the automatization of application industry; be applicable to complex-shaped; there are edge corner angle, hole Workpiece coating, are widely used at present the application of the handwares such as automobile, automatic vehicle, electromechanics, household electrical appliances.Electrophoretic paint can be divided into anode electrophoresis dope and cathode electrophoresis dope by being coated with piece pole; The ionic forms existing in water by film forming matter can be divided into anion electrophoresis coating and cation electrophoretic coating.
Electrophoretic painting can be realized complete mechanical, automatization, is applicable to a large amount of pipelinings; Electrophoretic paint permeability ratio is high, has higher electroconductibility simultaneously, and the utilization ratio of coating is high, environmental protection, production security are good.But, electrophoretic paint is generally only applicable to metallic surface, is not suitable on the discrepant alloy of electric conductivity, and the material of non-refractory generally can not adopt electrophoresis coating technique, at the bottom of electrophoresis chamber, be in 6 months regeneration period, so should not adopt electrophoretic painting to small serial production occasion; Electrophoretic paint requires there is powerful technical force as support, and color electrophoresis particularly will be accomplished the color effects of expection, is not professional, has certain difficulty when toning.
2, five metals baking vanish brief introduction:
Five metals baking vanish is to be sprayed onto treated workpiece surface by equipment, a class coating that could solidify through high temperature.It is divided into powder baking vanish and liquid baking vanish, and difference is that the former raw material is solid, powdery, and temperature is in 200 about degree, and in construction, the coating of super spray can recycling, and less wastage, adheres to great efforts; The latter is liquid, and temperature is in 150 degree left and right, and in spraying, the coating of super spray is not recyclable, and sticking power is slightly inferior.
Five metals baking vanish hardness is high, and chemical property is excellent, but color is not easy control, and small workpiece construction is inconvenient.
3, five metals polyurethane paint:
Five metals polyurethane paint is that the paint vehicle by lipid acid urethane resin, pigment, auxiliary agent, solvent composition is hydroxyl component and the two-component air-dry coating that is another component by isocyanic ester.
Five metals polyurethane paint is easy to construction, but sticking power is poorer than electrophoretic paint and baking vanish, and glossiness is poor simultaneously, cannot compare with UV.
Summary of the invention
The present patent application is for the existing above-mentioned weak point of coating being applied at present on anodic oxidation material, and a kind of proof voltage photo-cured anode oxidation coating and preparation and application thereof are provided.
Described proof voltage photo-cured anode oxidation coating is to using solvent-borne type modified urethane acrylate as main raw material, be equipped with polyurethane(s), dipentaerythritol acrylate, Viscoat 295 and epoxy acrylate, and add a small amount of flow agent, coupling agent, light trigger, insulation auxiliary agent, siccative, phosphoric acid ester and appropriate solvent, under suitable technique, be prepared from.
One of object of the present patent application is to provide a kind of proof voltage photo-cured anode oxidation coating, and specifically, described coating, comprises the various components of following weight parts:
1) solvent-borne type modified urethane acrylate 25-40 part; 2) epoxy acrylate 5-15 part; 3) polyurethane(s) 10-20 part; 4) dipentaerythritol acrylate 10-20 part; 5) Viscoat 295 0-20 part; 6) polyether silane multipolymer 0.5-2 part; 7) mixed solvent 10-20 part; 8) chlorine modified siloxane 3-6 part; 9) butylacetate 2-5 part; 10) phosphoric acid fat modification triacrylate 3-6 part; 11) oxypropyl trimethyl silane coupling agent 1-3 part; 12) 1-hydroxy-cyclohexyl phenyl ketone 1-2 part; 13) dibutyl tin laurate 0.1-0.5 part.
Further, described mixed solvent comprises the various components of following weight part:
1) ethyl acetate 10-30 part; 2) toluene 20-30 part;
3) hexone 10-20 part; 4) butylacetate 20-30 part;
5) ethylene glycol ether acetate 10-20 part.
Further, this mixed solvent can be used as the diluent of above-mentioned coating.
Various components in coating described in the present patent application, comprise that solvent-borne type modified urethane acrylate, epoxy acrylate, polyurethane(s), dipentaerythritol acrylate, Viscoat 295, polyether silane multipolymer, chlorine modified siloxane, butylacetate, phosphoric acid fat modification triacrylate, oxypropyl trimethyl silane coupling agent, 1-hydroxy-cyclohexyl phenyl ketone, dibutyl tin laurate are all the common product in chemistry painting industry field, all can be by commercially available acquisition.Common commercially available solvent-borne type modified urethane acrylate comprise Changxing 6071, the UV20515 of 6175-3 and You Ji; Common commercially available chlorine modified siloxane comprises heavy triumphant XD-A-078 and XD-A-40.
Solvent-borne type modified urethane acrylate is with the feature of light-cured resin and thermoplastic resin, fine to five metals material sticking power, and physical and chemical performance is superior simultaneously; Polyurethane(s) can reduce curing of coating and shrink, and improves film adhesive, the coating of polyurethane(s) low price, thereby reduction simultaneously cost; The good leveling property of dipentaerythritol acrylate and Viscoat 295, fullness ratio is high, is conducive to improve levelling and the fullness ratio of filming; Phosphate modified triacrylate, is adhesion promoter, quick solidifying, and hardness is higher, and metal base adheres to promotion obviously, and water tolerance, xanthochromia are better than similar other products; Oxypropyl trimethyl silane coupling agent, under hot conditions, can form a large amount of stable hydrogen bonds with material, and follow-up stable sticking power and water-fast endurance are provided for filming, and good with polyurethane acroleic acid fat consistency.
The preparation method of the proof voltage photo-cured anode oxidation coating described in the present patent application also provides, comprises following step:
1) premix disperses:
Get clean painting cylinder, according to the weight part of each component, solvent-borne type modified urethane acrylate, epoxy acrylate, polyurethane(s), dipentaerythritol acrylate, Viscoat 295 and phosphoric acid fat modification triacrylate are added to painting cylinder, with high speed dispersor, with 600-800rpm, stir 10-15 minute, be stirred to uniform liquid mixture;
2) dissolving of light trigger:
According to the weight part of each component, 1-hydroxy-cyclohexyl phenyl ketone is mixed with butylacetate, with high speed dispersor, with 600-800rpm, stir 10-15 minute, stir, then add step 1) in the liquid mixture that makes, then with 600-800rpm, stir 10-15 minute with high speed dispersor;
3) auxiliary agent adds:
Polyether silane multipolymer, chlorine modified siloxane, dibutyl tin laurate, oxypropyl trimethyl silane coupling agent and the mixed solvent of getting required weight part by, with high speed dispersor, with 600-800rpm, stir 5-10 minute, stir, then add in aforesaid liquid mixture, with high speed dispersor, with 600-800rpm, stir 10-15 minute again, be not more than 15um to fineness, with 500 order filter-cloth filterings, pack.
The present patent application also provides the preparation method of above-mentioned mixed solvent, specifically comprises: after described component is mixed by required weight part, with high speed dispersor, with 600-800rpm, stir 5-10 minute.
The using method of the proof voltage photo-cured anode oxidation coating described in the present invention also provides, comprises following step: ground pre-treatment → electrostatic precipitation → spraying anodic oxidation coating → photocuring → high temperature adds roasting → packing, and processing condition are as follows,
(1) ground pre-treatment:
Applicable ground comprises alloy, water power plating, stainless steel, anodic oxidation material; Before spraying, with clean cotton, dip Virahol or alcohol is wiped the pollutent on ground, and electrostatic precipitation, standby;
(2) spraying operation parameter setting and step:
A) construction environment: temperature 15-35 ℃, relative humidity 40-75%;
B) application mode: aerial spraying, can adopt hand spray or time variable control machine automatic coating;
C) device parameter: gravity type boat davit or suct formula spray gun; Bore 1.0-1.5mm; Air pressure 0.3-0.4mPa; Spray distance 15-20cm;
D) before construction by main body: solidifying agent: thinner=20: 1: (10-30) mix up oil, working viscosity be take and is adjusted to 9.5 ± 0.5s as the best;
E) solidify rear film thickness: individual layer should not exceed 25 μ m;
F) drying conditions: UV is crossed in 60 ℃ of bakings for 5 minutes, and (UV energy is at 600mj/cm
2-1200mj/cm
2), then put into 120 ℃ of-150 ℃ of temperature and add roasting 20-40min.
Described proof voltage photo-cured anode oxidation coating can be used for the external coating of the materials such as alloy, water power plating, stainless steel, anodic oxidation, after suitable construction and being dried, can form the paint film with excellent adhesive attraction and proof voltage, play the effect of anti-electrostatic and decoration.This coating has photo-cured coating safety and environmental protection, is easy to the features such as construction, sticking power is excellent, fullness ratio is high, decorative appearance is strong, water-fast, chemical resistant properties is good, and proof voltage can reach 5KV, and low VOC is that a kind of environmental protection, curing speed are fast, high-performance coating.
At present common anodic oxidation coating is substantially all electrophoretic paint or baking vanish, and electrophoretic paint generally can only be for five metals material, and application is limited by cost on miniature workpiece; When baking vanish is applied on anodic oxidation material, it is larger that the construction of powder baking vanish drops into, although that liquid baking vanish drops into is little, fullness ratio and the glossiness of paint film are not high enough; And pure photo-cured coating poor adhesive force on anodic oxidation material is applied limited.
Coating described in the present patent application is to take photocuring as main mixed type coating, has following advantage:
1. solved the application shortcoming of three class coating described in background technology, this coating paint film transparent good, fullness ratio is high, glossiness sense and ornamental strong, sticking power is good;
2. contrast electrophoretic paint, this coating can be covered with paint, lacquer, colour wash, etc. in resistant to elevated temperatures plastic rubber substrate, as PC, PMMA etc., can realize the quick production of plastic cement and the compound workpiece of five metals, simultaneously by actual demand, adjusts the proof voltage ability of paint film;
Curing speed fast, be applicable to high-speed production lines, efficiency is high;
4. film performance is good, has good friction resistant, anti-solvent, antipollution, and endurance and antiseptic property are superior;
5. pollute less, VOC is low, be conducive to environment protection;
6. save floor space, the various coating equipments of photo-cured coating are compact, convenient to operation, are easy to realize the production automation, greatly save occupation area of equipment.
Concrete embodiment
Below in conjunction with concrete embodiment; proof voltage photo-cured anode oxidation coating and preparation and application thereof described in the present patent application are described; object is better to understand the technology contents described in the present patent application for the public; rather than the restriction to described technology contents; in fact; in the principle with identical or approximate; to the increase and decrease of described formulation for coating material and replacement; and in preparation and application; the improvement of processing condition; take and realize identical effect as object, all within the present patent application technical scheme required for protection.
Embodiment 1
Described coating comprises following component:
1) solvent-borne type modified urethane acrylate is 25 parts; 2) epoxy acrylate is 10 parts;
3) polyurethane(s) is 20 parts; 4) dipentaerythritol acrylate is 10 parts;
5) polyether silane multipolymer is 0.5 part; 6) mixed solvent is 10 parts;
7) chlorine modified siloxane is 3 parts; 8) butylacetate is 2 parts;
9) phosphoric acid fat modification triacrylate is 6 parts; 10) oxypropyl trimethyl silane coupling agent is 1 part;
11) 1-hydroxy-cyclohexyl phenyl ketone is 2 parts; 12) dibutyl tin laurate is 0.3 part.
Further, described mixed solvent comprises the various components of following weight part:
1) ethyl acetate is 10 parts; 2) toluene is 30 parts;
3) hexone is 10 parts; 4) butylacetate is 30 parts;
5) ethylene glycol ether acetate is 10 parts.
Preparation process, comprises following step:
1) premix disperses:
Get clean painting cylinder, according to the weight part of each component, solvent-borne type modified urethane acrylate, epoxy acrylate, polyurethane(s), dipentaerythritol acrylate, Viscoat 295 and phosphoric acid fat modification triacrylate are added to painting cylinder, with high speed dispersor, with 600rpm, stir 15 minutes, be stirred to uniform liquid mixture;
2) dissolving of light trigger:
According to the weight part of each component, 1-hydroxy-cyclohexyl phenyl ketone is mixed with butylacetate, with high speed dispersor, with 800rpm, stir 10 minutes, stir, then add step 1) in the liquid mixture that makes, then stir 15 minutes with 600rpm with high speed dispersor;
3) auxiliary agent adds:
Polyether silane multipolymer, chlorine modified siloxane, dibutyl tin laurate, oxypropyl trimethyl silane coupling agent and the mixed solvent of getting required weight part by, with high speed dispersor, with 600rpm, stir 10 minutes, stir, then add in aforesaid liquid mixture, with high speed dispersor, with 800rpm, stir 10 minutes again, be not more than 15um to fineness, with 500 order filter-cloth filterings, pack.
Embodiment 2
1) solvent-borne type modified urethane acrylate is 40 parts; 2) epoxy acrylate is 5 parts;
3) polyurethane(s) is 20 parts; 4) dipentaerythritol acrylate is 20 parts;
5) Viscoat 295 is 20 parts; 6) polyether silane multipolymer is 0.5 part;
7) mixed solvent is 20 parts; 8) chlorine modified siloxane is 6 parts; 9) butylacetate is 2 parts;
10) phosphoric acid fat modification triacrylate is 6 parts; 11) oxypropyl trimethyl silane coupling agent is 1 part;
12) 1-hydroxy-cyclohexyl phenyl ketone is 2 parts; 13) dibutyl tin laurate is 0.1 part.
Further, described mixed solvent comprises the various components of following weight part:
1) ethyl acetate is 30 parts; 2) toluene is 20 parts;
3) hexone is 20 parts; 4) butylacetate is 20 parts;
5) ethylene glycol ether acetate is 20 parts.
Preparation process, comprises following step:
1) premix disperses:
Get clean painting cylinder, according to the weight part of each component, solvent-borne type modified urethane acrylate, epoxy acrylate, polyurethane(s), dipentaerythritol acrylate, Viscoat 295 and phosphoric acid fat modification triacrylate are added to painting cylinder, with high speed dispersor, with 800rpm, stir 10 minutes, be stirred to uniform liquid mixture;
2) dissolving of light trigger:
According to the weight part of each component, 1-hydroxy-cyclohexyl phenyl ketone is mixed with butylacetate, with high speed dispersor, with 600rpm, stir 15 minutes, stir, then add step 1) in the liquid mixture that makes, then stir 10 minutes with 800rpm with high speed dispersor;
3) auxiliary agent adds:
Polyether silane multipolymer, chlorine modified siloxane, dibutyl tin laurate, oxypropyl trimethyl silane coupling agent and the mixed solvent of getting required weight part by, with high speed dispersor, with 800rpm, stir 10 minutes, stir, then add in aforesaid liquid mixture, with high speed dispersor, with 600rpm, stir 15 minutes again, be not more than 15um to fineness, with 500 order filter-cloth filterings, pack.
Embodiment 3
One of object of the present patent application is to provide a kind of proof voltage photo-cured anode oxidation coating, and specifically, described coating, comprises the various components of following weight parts:
1) solvent-borne type modified urethane acrylate is 340 parts; 2) epoxy acrylate is 15 parts;
3) polyurethane(s) is 15 parts; 4) dipentaerythritol acrylate is 16 parts;
5) Viscoat 295 is 10 parts; 6) polyether silane copolymer 1 part;
7) mixed solvent is 14 parts; 8) chlorine modified siloxane is 4 parts; 9) butylacetate is 3 parts;
10) phosphoric acid fat modification triacrylate is 4 parts; 11) oxypropyl trimethyl silane coupling agent is 2 parts;
12) 1-hydroxy-cyclohexyl phenyl ketone is 1.5 parts; 13) dibutyl tin laurate is 0.2 part.
Further, described mixed solvent comprises the various components of following weight part:
1) ethyl acetate is 20 parts; 2) toluene is 25 parts;
3) hexone is 15 parts; 4) butylacetate is 26 parts;
5) ethylene glycol ether acetate is 14 parts.
The preparation method of the proof voltage photo-cured anode oxidation coating described in the present patent application also provides, comprises following step:
1) premix disperses:
Get clean painting cylinder, according to the weight part of each component, solvent-borne type modified urethane acrylate, epoxy acrylate, polyurethane(s), dipentaerythritol acrylate, Viscoat 295 and phosphoric acid fat modification triacrylate are added to painting cylinder, with high speed dispersor, with 700rpm, stir 12 minutes, be stirred to uniform liquid mixture;
2) dissolving of light trigger:
According to the weight part of each component, 1-hydroxy-cyclohexyl phenyl ketone is mixed with butylacetate, with high speed dispersor, with 700rpm, stir 13 minutes, stir, then add step 1) in the liquid mixture that makes, then stir 12 minutes with 700rpm with high speed dispersor;
3) auxiliary agent adds:
Polyether silane multipolymer, chlorine modified siloxane, dibutyl tin laurate, oxypropyl trimethyl silane coupling agent and the mixed solvent of getting required weight part by, with high speed dispersor, with 700rpm, stir 7 minutes, stir, then add in aforesaid liquid mixture, with high speed dispersor, with 700rpm, stir 12 minutes again, be not more than 15um to fineness, with 500 order filter-cloth filterings, pack.
Embodiment 4
Table-1 working conditions
Embodiment test result:
The performance of coating described in table-2 embodiment 1-3
● in above test result, √ represents that test passes passes through, * represent not pass through.
Claims (3)
1. a proof voltage photo-cured anode oxidation coating, is characterized in that, described coating comprises the various components of following weight parts:
1) Changxing 6175-325-40 part; 2) epoxy acrylate 5-15 part; 3) polyurethane(s) 10-20 part; 4) dipentaerythritol acrylate 10-20 part; 5) Viscoat 295 0-20 part; 6) polyether silane multipolymer 0.5-2 part; 7) mixed solvent 10-20 part; 8) chlorine modified siloxane 3-6 part; 9) butylacetate 2-5 part; 10) phosphoric acid fat modification triacrylate 3-6 part; 11) oxypropyl trimethyl silane coupling agent 1-3 part; 12) 1-hydroxy-cyclohexyl phenyl ketone 1-2 part; 13) dibutyl tin laurate 0.1-0.5 part.
2. coating according to claim 1, is characterized in that, described mixed solvent comprises the various components of following weight part:
1) ethyl acetate 10-30 part; 2) toluene 20-30 part; 3) hexone 10-20 part; 4) butylacetate 20-30 part; 5) ethylene glycol ether acetate 10-20 part.
3. the preparation method of proof voltage photo-cured anode oxidation coating claimed in claim 1, is characterized in that, described method comprises following step:
1) premix disperses:
Get clean painting cylinder, according to the weight part of each component, Changxing 6175-3, epoxy acrylate, polyurethane(s), dipentaerythritol acrylate, Viscoat 295 and phosphoric acid fat modification triacrylate are added to painting cylinder, with high speed dispersor, with 600-800rpm, stir 10-15 minute, be stirred to uniform liquid mixture;
2) dissolving of light trigger:
According to the weight part of each component, 1-hydroxy-cyclohexyl phenyl ketone is mixed with butylacetate, with high speed dispersor, with 600-800rpm, stir 10-15 minute, stir, then add in the liquid mixture that step 1) makes, then with 600-800rpm, stir 10-15 minute with high speed dispersor;
3) auxiliary agent adds:
Get polyether silane multipolymer, chlorine modified siloxane, dibutyl tin laurate, oxypropyl trimethyl silane coupling agent and the mixed solvent of required weight part, with high speed dispersor, with 600-800rpm, stir 5-10 minute, stir, then add above-mentioned steps 2) in the liquid mixture that obtains, with high speed dispersor, with 600-800rpm, stir 10-15 minute again, be not more than 15 μ m to fineness, with 500 order filter-cloth filterings, pack.
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| CN103614051A (en) * | 2013-10-12 | 2014-03-05 | 安徽蓝润自动化仪表有限公司 | Circuit board yellowing resistance paint and preparation method thereof |
| CN103881557B (en) * | 2014-02-26 | 2015-11-04 | 金甲化工企业(中山)有限公司 | A kind of coloured UV coating |
| CN108676125B (en) * | 2018-06-05 | 2020-04-28 | 南雄市瑞晟化学工业有限公司 | Organic silicon graft modified glass ultraviolet curing resin |
| CN109306240B (en) * | 2018-09-30 | 2021-01-01 | 卡秀万辉(无锡)高新材料有限公司 | Photocuring colored coating capable of repairing defects of anode material |
| CN116254046B (en) * | 2023-03-09 | 2024-05-10 | 金万正(广东)新材料有限公司 | UV (ultraviolet) coating |
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| EP1350816A1 (en) * | 2000-11-30 | 2003-10-08 | Mitsubishi Rayon Co., Ltd. | Active energy ray curable composition for coating optical disk and optical disk |
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| CN101638554A (en) * | 2009-05-06 | 2010-02-03 | 佛山市顺德区希贵光固化材料有限公司 | Ultraviolet curing coating |
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| JPS6181402A (en) * | 1984-09-28 | 1986-04-25 | Toshiba Corp | Photosetting composition |
| KR20090073588A (en) * | 2007-12-31 | 2009-07-03 | (주)노루페인트 | Uv-curing putty paint for repairing a vehicle and method of forming the putty layer |
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| EP1350816A1 (en) * | 2000-11-30 | 2003-10-08 | Mitsubishi Rayon Co., Ltd. | Active energy ray curable composition for coating optical disk and optical disk |
| CN1803942A (en) * | 2005-12-26 | 2006-07-19 | 中国化工建设总公司常州涂料化工研究院 | Ultraviolet curing coating for metal plating surface protection |
| CN101638554A (en) * | 2009-05-06 | 2010-02-03 | 佛山市顺德区希贵光固化材料有限公司 | Ultraviolet curing coating |
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Denomination of invention: Voltage resistant UV curable anodic oxidation coating and its preparation and application method Effective date of registration: 20221209 Granted publication date: 20140115 Pledgee: Bank of China Limited Shenzhen Shangbu Sub branch Pledgor: Shenzhen Giantechem Technology Co.,Ltd. Registration number: Y2022980026573 |
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