CN104789103A - Water-based photocuring paint for 3C electronic industry and preparation method thereof - Google Patents
Water-based photocuring paint for 3C electronic industry and preparation method thereof Download PDFInfo
- Publication number
- CN104789103A CN104789103A CN201510219523.XA CN201510219523A CN104789103A CN 104789103 A CN104789103 A CN 104789103A CN 201510219523 A CN201510219523 A CN 201510219523A CN 104789103 A CN104789103 A CN 104789103A
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- Prior art keywords
- water
- radiation curable
- curable coating
- applicable
- waterborne radiation
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention belongs to the field of preparation of paints, and particularly relates to a water-based photocuring paint suitable for 3C electronic industry and a preparation method thereof. The preparation method comprises the following steps: adding a water-based photocuring polyurethane resin and a water-based photocuring polyester resin into a stirring kettle, adding deionized water, a film-forming assistant, water-based wax, a water-based defoaming agent and a wetting agent, stirring uniformly, adding DMEA (dimethylethanolamine) to regulate the pH value of the system to 7.5-8, adding modified water-based aluminum slurry, finally adding a water-based photoinitiator, and stirring uniformly to obtain the water-based photocuring paint.
Description
Technical field
The invention belongs to coating preparation field, be particularly a kind ofly applicable to waterborne radiation curable coating of 3C electron trade and preparation method thereof.
Background technology
Along with the development of information age, 3C electronic product has occupied irreplaceable status in life, the increase year by year of 3C electronic product, brings the tremendous development of relevant 3C coating, and current 3C coating is mainly with solvent based coating, and solvent-borne type photo-cured coating is main, but along with the enhancing of people's environmental consciousness, solvent based coating can not meet the needs of people gradually, its some problems existed, have impact on its application and popularization, mainly contain:
(1) reactive thinner is irritant to the skin of people, mucous membrane and eyes, some frowziness;
(2), during the larger application of oligopolymer viscosity, when particularly spraying, a large amount of reactive thinner be added, sometimes also will add organic solvent, dangerous, also contaminate environment;
(3) photocuring system mainly radical photopolymerization, because of oxygen inhibition, polymerization not exclusively, still residual activity thinner in solidified coating.Therefore traditional photo-curing material is not suitable for printing and the application of the wrapping material of food sanitation product, a photocuring product is not also had to obtain the license of FDA (Food and Drug Adminstration) (FDA) at present;
(4) the photocuring prices of raw and semifnished materials are more expensive;
(5) owing to adopting radical photopolymerization system curing speed to solidify rear volumetric shrinkage soon greatly, the sticking power between film and base material is affected;
(6) colored light-curing system, because pigment is to the absorption of light, reflection and scattering, affects curing speed, makes solidification difficulty;
(7) oiliness photo-curing material, coating apparatus and cleaning container need use organic solvent,
Wherein, what attract people's attention most is reactive thinner and the infringement of volatile organic matter to human body and the pollution of environment.
In order to overcome these disadvantages, a kind of new photocuring system---aqueous photo-curing system is arisen at the historic moment.The advantage of traditional photocuring technology and water-borne coatings, ink technology is inherited and developed to aqueous photo-curing system, become the field that of photocuring technology research and development is very active, and obtained practical application.
Waterborne radiation curable coating combines the features of the coating material solidified and water-borne coatings of traditional UV, has following advantages relative to conventional oil-based photo-curing material:
(1) water is that most convenient obtains, the most cheap raw material, replaces reactive thinner to dilute oligopolymer, be easy to regulate viscosity, can realize non-reactive diluent formula with water;
(2) problems such as VOC, pungency and stink are not just had without reactive thinner;
(3) applicable various coating equipment, especially to spraying safety;
(4) can avoid due to by the solidification volumetric shrinkage caused by reactive thinner;
(5) shallow layer coating can be realized, reduce costs;
(6) coating equipment and container can the cleanings of use scavenging solution.
Waterborne Radiation Curing Material among other advantages, a very outstanding advantage is also had to be exactly solve the contradiction between the hardness of conventional curing coating and snappiness: from the relationship analysis of molecular structure and performance, to only have the material of high molecular weight just can have high rigidity and high-flexibility.Tradition photo-cured coating can not use the oligopolymer of high molecular weight, adds a large amount of low relative molecular mass reactive thinner simultaneously, is therefore difficult to take into account hardness and snappiness.And the oligopolymer of the waterborne radiation curable coating aqueous dispersion that to be relative molecular mass high, its viscosity and high molecular relative molecular mass have nothing to do, and it is only relevant with solid content, thus the oligopolymer of high molecular weight can be used in waterborne radiation curable coating, again without the reactive thinner of low relative molecular mass, thus overcome the contradiction that photo-cured coating high rigidity and high-flexibility can not take into account.
Summary of the invention
The object of the invention is to: provide a kind of waterborne radiation curable coating being applicable to 3C electron trade, each component of coating is calculated as by weight:
Above-mentioned modified water-soluble aluminium paste is for adopting passivation addition method, carry out modification to water-based aluminium paste to obtain, modified technique is: properties-correcting agent 2 weight part, pure water 10 weight part are added KDD water-based aluminium paste (WAG69110) 10 weight part after mixing, passivation 1 hour
Wherein, above-mentioned properties-correcting agent develops voluntarily for the present inventor, and concrete preparation process is: adopt methacrylic acid, polyoxyethylene glycol, HEMA and P
2o
5a polymer phosphoric acid ester of Reactive Synthesis properties-correcting agent: by methacrylic acid 1 weight part, polyoxyethylene glycol 1 weight part, HEMA 2 weight part and P
2o
51 weight part mixes, and reacts 4.5 hours at 75 DEG C.
As preferably: above-mentioned aqueous photo-curing polyurethane resin is the waterborne polyurethane resin CN9245 of Sartomer Guangzhou Chemical Co., Ltd., and aqueous photo-curing vibrin is the aqueous polyester resin XP2733 of Bayer AG,
Above-mentioned water-borne wax is Keim-Additec water-borne wax D-814, water-based defoamer is DOW CORNING water-based defoamer DC-65, wetting agent is Hope's chemistry water-based substrate wetting agents HP-855, thickening material is the water-based thickener R-7160 of Jinan moonlight Science and Technology Development Co., Ltd., and water-soluble photoinitiator is 819-DW.
Present invention also offers a kind of preparation method of above-mentioned waterborne radiation curable coating, first in stirring tank, add aqueous photo-curing polyurethane resin and aqueous photo-curing vibrin, add deionized water, film coalescence aid BCS, water-borne wax, water-based defoamer, wetting agent again, stir, and to add DMEA regulation system pH be 7.5 ~ 8, add modified water-soluble aluminium paste again, finally add water-soluble photoinitiator, stir and obtain waterborne radiation curable coating.
Beneficial effect of the present invention is: after the present invention fully solves and adds aluminium paste in environmental protection and photocuring paint film property problem and in aqueous photo-curing system, add the problem of aluminium powder oxidation; Occur in view of having oxidizing reaction after add aluminium powder in aqueous photo-curing system thus cause film to lose metal-like; we introduce passivation addition method; by adopting properties-correcting agent, passivation is carried out to water-based aluminium paste; fully be adsorbed on aluminium-silver slurry particle surface after can dissolving in water and form a protective layer; thus reach the effect stoping aluminium-silver slurry oxidation, fully solve the problem of the metal-like variation that coating caused because of adding of aluminium paste.
Embodiment
Embodiment 1
Be applicable to a waterborne radiation curable coating for 3C electron trade, each component of coating is calculated as by weight:
Modified water-soluble aluminium paste is adopt passivation addition method to carry out modification to water-based aluminium paste to obtain,
Modified technique is: properties-correcting agent 2 weight part, deionized water 10 weight part are added KDD water-based aluminium paste WAG69110 10 weight part after mixing, passivation 1 hour,
Above-mentioned properties-correcting agent is for adopting methacrylic acid, polyoxyethylene glycol, HEMA and P
2o
5a polymer phosphoric acid ester properties-correcting agent of Reactive Synthesis is (by methacrylic acid 1 weight part, polyoxyethylene glycol 1 weight part, HEMA 2 weight part and P
2o
51 weight part mixes, and reacts 4.5 hours at 75 DEG C).
The preparation technology of above-mentioned waterborne radiation curable coating (when adding DMEA, regulates pH to be 7.5) as shown in specification sheets; Film forming properties is as shown in table 1, and (film-forming technique is: coating 80 DEG C of preheatings 5 minutes after spray coating, with high voltage mercury lamp with 500mj/cm
2energy carries out drying, lower same).
Contrast experiment 1
Adopt " the waterborne polyurethane resin CN9245 of Sartomer Guangzhou Chemical Co., Ltd. " in " the aqueous polyurethane DR-U024 of Changxing Chemical Industry Co Ltd " alternate embodiment 1, all the other each component, content and preparation technologies thereof are identical with embodiment 1, and the film forming properties of the waterborne radiation curable coating obtained is as shown in table 1.
Contrast experiment 2
Adopt " the aqueous polyester resin XP2733 of Bayer AG " in " the aqueous polyester resin UCECOAT6558 of cyanogen specialization work (Shanghai) Co., Ltd. " alternate embodiment 1, all the other each component, content and preparation technologies thereof are identical with embodiment 1, and the film forming properties of the waterborne radiation curable coating obtained is as shown in table 1.
Contrast experiment 3
Adopt " the water-soluble photoinitiator 819-DW " in " water-soluble photoinitiator 1173 " replacement embodiment 1, all the other each component, content and preparation technologies thereof are identical with embodiment 1, and the film forming properties of the waterborne radiation curable coating obtained is as shown in table 1.
Contrast experiment 4
Adopt " the water-soluble photoinitiator 819-DW " in " water-soluble photoinitiator 184 " replacement embodiment 1, all the other each component, content and preparation technologies thereof are identical with embodiment 1, and the film forming properties of the waterborne radiation curable coating obtained is as shown in table 1.
Contrast experiment 5
Adopt " the water-soluble photoinitiator 819-DW " in " water-soluble photoinitiator 2959 " replacement embodiment 1, all the other each component, content and preparation technologies thereof are identical with embodiment 1, and the film forming properties of the waterborne radiation curable coating obtained is as shown in table 1.
Contrast experiment 6 (during batching, any modification not being done to water-based aluminium paste)
Be applicable to a waterborne radiation curable coating for 3C electron trade, each component of coating is calculated as by weight:
The preparation technology of above-mentioned waterborne radiation curable coating (when adding DMEA, regulates pH to be 7.5) as shown in specification sheets; Film forming properties is as shown in table 1, and (film-forming technique is: coating 80 DEG C of preheatings 5 minutes after spray coating, with high voltage mercury lamp with 500mj/cm
2energy carries out drying).
Table 1
Contrast experiment 7:
On the basis of embodiment 1, each component ratio in formula system adjusts by we, specifically asks for an interview table 2; Rete (film-forming technique as described in Example 1) detected result asks for an interview table 3.
Table 2
(note: in upper table, the modification preparation technology of modified water-soluble aluminium paste as described in Example 1.)
Table 3
As can be seen from each performance formula of upper table: aluminium paste affects the appearance effect of coating very little, but aluminium paste amount too much causes ultraviolet light by paint film, thus to cause paint film deep layer to solidify, and then affects its performance requriements; In waterborne polyurethane resin amount situation on the high side, appearance effect is had a certain impact, because its hardness is high, shrink large during reaction, in the test in later stage, have the phenomenon of cracking; Initiator is on the low side, and reaction cannot be complete, and finally affect the Essential Performance Requirements of paint film, initiator is on the high side, adds the cost of formula in performance outward appearance each side under requiring the condition met.We are from the appearance effect of product, the performance of paint film and the cost consideration of formula for this reason, the formula of final preferred embodiment 1.
Claims (10)
1. be applicable to a waterborne radiation curable coating for 3C electron trade, it is characterized in that: each component of described waterborne radiation curable coating is calculated as by weight,
2. be applicable to the waterborne radiation curable coating of 3C electron trade as claimed in claim 1, it is characterized in that: described modified water-soluble aluminium paste is adopt passivation addition method to carry out modification to water-based aluminium paste to obtain,
Described modified technique is, properties-correcting agent 2 weight part, deionized water 10 weight part is added KDD water-based aluminium paste WAG69110 10 weight part after mixing, passivation 1 hour,
Described properties-correcting agent is for adopting methacrylic acid, polyoxyethylene glycol, HEMA and P
2o
5a polymer phosphoric acid ester properties-correcting agent of Reactive Synthesis.
3. be applicable to the waterborne radiation curable coating of 3C electron trade as claimed in claim 1, it is characterized in that: described aqueous photo-curing polyurethane resin is the waterborne polyurethane resin CN9245 of Sartomer Guangzhou Chemical Co., Ltd..
4. be applicable to the waterborne radiation curable coating of 3C electron trade as claimed in claim 1, it is characterized in that: described aqueous photo-curing vibrin is the aqueous polyester resin XP2733 of Bayer AG.
5. be applicable to the waterborne radiation curable coating of 3C electron trade as claimed in claim 1, it is characterized in that: described water-borne wax is Keim-Additec water-borne wax D-814.
6. be applicable to the waterborne radiation curable coating of 3C electron trade as claimed in claim 1, it is characterized in that: described water-based defoamer is DOW CORNING water-based defoamer DC-65.
7. be applicable to the waterborne radiation curable coating of 3C electron trade as claimed in claim 1, it is characterized in that: described wetting agent is Hope's chemistry water-based substrate wetting agents HP-855.
8. be applicable to the waterborne radiation curable coating of 3C electron trade as claimed in claim 1, it is characterized in that: described thickening material is the water-based thickener R-7160 of Jinan moonlight.
9. be applicable to the waterborne radiation curable coating of 3C electron trade as claimed in claim 1, it is characterized in that: described water-soluble photoinitiator is 819-DW.
10. be applicable to the preparation method of the waterborne radiation curable coating of 3C electron trade as claimed in claim 1, it is characterized in that: described preparation method is, first in stirring tank, add aqueous photo-curing polyurethane resin and aqueous photo-curing vibrin, add deionized water, film coalescence aid BCS, water-borne wax, water-based defoamer, wetting agent again, stir, and to add DMEA regulation system pH be 7.5 ~ 8, add modified water-soluble aluminium paste again, finally add water-soluble photoinitiator, stir and obtain waterborne radiation curable coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510219523.XA CN104789103B (en) | 2015-04-30 | 2015-04-30 | A kind of 3C used in electronic industry waterborne radiation curable coating and preparation method thereof |
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| CN201510219523.XA CN104789103B (en) | 2015-04-30 | 2015-04-30 | A kind of 3C used in electronic industry waterborne radiation curable coating and preparation method thereof |
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| CN104789103A true CN104789103A (en) | 2015-07-22 |
| CN104789103B CN104789103B (en) | 2016-11-16 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106519841A (en) * | 2016-11-08 | 2017-03-22 | 江苏巨珩新材料科技有限公司 | Flowable carbon fiber and magnalium alloy type water-soluble colored nanometer UV coating and preparation method thereof |
| CN106752785A (en) * | 2017-01-17 | 2017-05-31 | 湖南松井新材料有限公司 | Aqueous UV silver powder coatings and preparation method thereof |
| CN112480806A (en) * | 2020-10-30 | 2021-03-12 | 东莞市大兴化工有限公司 | Ultraviolet-hardening water-based paint and preparation method and application thereof |
| CN112724820A (en) * | 2021-01-19 | 2021-04-30 | 重庆瑞恩涂料有限公司 | Water-based colored light-cured paint and preparation method thereof |
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| CN101633813A (en) * | 2008-07-22 | 2010-01-27 | 上海富臣化工有限公司 | Composite ultraviolet curing waterborne wood coating and production method thereof |
| CN102827538A (en) * | 2012-09-17 | 2012-12-19 | 上海富臣化工有限公司 | Water-based ultraviolet (UV) shower coating matt white paint |
| CN103289012A (en) * | 2013-06-24 | 2013-09-11 | 上海诺恰化工有限公司 | Preparation method of water-borne coating additive for oily aluminum paste and water-borne coating prepared from water-borne coating auxiliary |
-
2015
- 2015-04-30 CN CN201510219523.XA patent/CN104789103B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001064577A (en) * | 1999-08-27 | 2001-03-13 | Sanyu Paint Kk | Topcoating material and its curing method |
| CN101633813A (en) * | 2008-07-22 | 2010-01-27 | 上海富臣化工有限公司 | Composite ultraviolet curing waterborne wood coating and production method thereof |
| CN102827538A (en) * | 2012-09-17 | 2012-12-19 | 上海富臣化工有限公司 | Water-based ultraviolet (UV) shower coating matt white paint |
| CN103289012A (en) * | 2013-06-24 | 2013-09-11 | 上海诺恰化工有限公司 | Preparation method of water-borne coating additive for oily aluminum paste and water-borne coating prepared from water-borne coating auxiliary |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106519841A (en) * | 2016-11-08 | 2017-03-22 | 江苏巨珩新材料科技有限公司 | Flowable carbon fiber and magnalium alloy type water-soluble colored nanometer UV coating and preparation method thereof |
| CN106752785A (en) * | 2017-01-17 | 2017-05-31 | 湖南松井新材料有限公司 | Aqueous UV silver powder coatings and preparation method thereof |
| CN106752785B (en) * | 2017-01-17 | 2019-05-17 | 长沙松润新材料有限公司 | Aqueous UV silver powder coating and preparation method thereof |
| CN112480806A (en) * | 2020-10-30 | 2021-03-12 | 东莞市大兴化工有限公司 | Ultraviolet-hardening water-based paint and preparation method and application thereof |
| CN112724820A (en) * | 2021-01-19 | 2021-04-30 | 重庆瑞恩涂料有限公司 | Water-based colored light-cured paint and preparation method thereof |
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|---|---|
| CN104789103B (en) | 2016-11-16 |
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Address after: 3200 Jintan Road, Changzhou, Jiangsu Province Patentee after: Changzhou Haoyang New Material Technology Co.,Ltd. Address before: 213002, No. 256, Xin Zhong Road, Gou Nan industrial complex, Hutang Town, Wujin District, Jiangsu, Changzhou Patentee before: CHANGZHOU HAOYANG AQUEOUS NEW MATERIALS Co.,Ltd. |
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Address after: 213000 No. 9, Longhu Road, Jintan District, Changzhou City, Jiangsu Province Patentee after: Changzhou Haoyang Waterbome New Material Co.,Ltd. Address before: 9 Longhu Road, Jintan District, Changzhou City, Jiangsu Province 213200 Patentee before: Changzhou Haoyang New Material Technology Co.,Ltd. |