CN104152007A - Solvent-free UV vacuum spraying priming paint and preparation method thereof - Google Patents
Solvent-free UV vacuum spraying priming paint and preparation method thereof Download PDFInfo
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- CN104152007A CN104152007A CN201410412349.6A CN201410412349A CN104152007A CN 104152007 A CN104152007 A CN 104152007A CN 201410412349 A CN201410412349 A CN 201410412349A CN 104152007 A CN104152007 A CN 104152007A
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Abstract
The invention provides a solvent-free UV vacuum spraying priming paint and a preparation method thereof. The solvent-free UV vacuum spraying priming paint comprises the following ingredients: low viscosity epoxy acrylic resin, polyurethane acrylic resin, a functional monomer, a photoinitiator, an auxiliary agent and a filler powder. The simple and convenient preparation method comprises the following advantages: solid content is close to 100%, paint utilization rate is close to 100%, production loss can be effectively reduced, manpower can be saved by employing a vacuum spray coater for construction, zero discharge can be realized for harmful substance, health of operator can be effectively protected, and discharge is reduced. The paint has the advantages of high leveling effect, high filling property, high transparency, high hardness, high clunging and high rubbing property, the product after finishing the paint is durable, and the product quality and production efficiency can be increased.
Description
Technical field
The present invention relates to a kind of UV woodwork coating, particularly a kind of solvent-free UV vacuum spraying primer base and preparation method thereof.
Background technology
Vacuum spraying technology is a kind of up-to-date spraying technology, it can make machinery in the situation that having imitative type opening, utilize Venturi effect to obtain vacuum environment coating is carried out to atomization, workpiece is sprayed, wood furniture special-shaped line application at present mainly has gas spray gun spraying coating process as main taking traditional, the feature of spray gun spraying technique is that mist of oil can be diffused in air in a large number, cause the waste of paint, the utilization ratio of coating is approximately 25%-30%, environment is caused to severe contamination, harm operator's health, under lines cross-sectional shape complicated situation, need the angle of spray gun to carry out loaded down with trivial details adjustment, and can not ensure that each face quantity for spray is consistent, easily cause the sagging of coating at workpiece groove place, be difficult to workpiece surface to carry out disposable 360 degree sprayings, and vacuum spraying technology can effectively solve the above-mentioned numbness end that has gas spray gun spraying coating process, vacuum spraying technical matters can make coating recycle in the environment of sealing, utilization ratio is close to 100%, gas discharges after secondary filter, environment-protecting clean, no matter how complicated lines cross-sectional shape is, all can ensure each surface uniform spraying, can carry out disposable 360 degree sprayings to workpiece surface, the perfect adaptation of vacuum spraying technology and UV vacuum spraying coating can be saved a large amount of artificial, objectionable impurities approaches zero release, meet harsh environmental requirement, effectively protection operator ' s health and reduction discharge, but great majority are all solubilization formulation UV sprayed coatings on the market at present, VOC discharge is serious, do not reach the requirement of UV coating environmental protection, it is bad that minority UV vacuum spraying coating all has atomization, levelling property is poor, the features such as bad polishing.
Summary of the invention
Technical problem to be solved by this invention is to overcome the deficiencies in the prior art, a kind of solvent-free UV vacuum spraying primer base is provided, making it has good atomization at vacuum spraying machine, film after spraying is levelling fast, reach excellent minute surface filling effect, also should there is convenient and quick construction simultaneously, curing speed is fast, hardness is high, transparency is good, strong adhesion, the advantages such as easy polishing, use vacuum spray painting machine construction to allow coating obtain 100% utilization, one side reduces the comprehensive cost including labor force of factory and reaches the requirement of national environmental protection discharge, improve on the other hand product quality and working efficiency.
Another object of the present invention is to, the preparation method of above-mentioned solvent-free UV vacuum spraying primer base is provided, simple and convenient.
For achieving the above object and solve above technical problem, the present invention can be achieved through the following technical solutions: solvent-free UV vacuum spraying primer base of the present invention, it comprise component and weight percent as follows:
Further, solvent-free UV vacuum spraying primer base of the present invention also comprises auxiliary agent, and it accounts for the 0.7-1.1% of formula gross weight.
According to the present invention, described low sticky epoxy acrylic resin is the low sticky epoxy acrylic resin of UV that reacts synthetic by bisphenol A epoxide resin and acroleic acid esterification, and preferably long profit is sent out the YTM2100 of chemical industry.
According to the present invention, described polyurethane acrylic resin is by by the first chain extending reaction of aromatic diisocyanate and polyether glycol, a kind of flexible poly urethane acrylate resin that contain two functional groups synthetic with crylic acid hydroxy ester esterification again, and preferably long profit is sent out the YTM4200 of chemical industry.
According to the present invention, described functional monomer is one or more the mixture in Viscoat 295 (TMPTA), tripropylene glycol diacrylate (TPGDA), methacrylic acid-13-hydroxyl ethyl ester (HEMA), preferably the related products of Changxing, Taiwan chemical industry.
According to the present invention, described light trigger is the mixture of 2-hydroxy-2-methyl-1-phenyl-1-acetone (1173) and benzophenone and reactive amines, preferably BASF or Tianjin day scientific and technological related products for a long time.
According to the present invention, described auxiliary agent comprises the dispersion agent, defoamer, the flow agent of 0.2-0.3% and the anti-settling agent of 0.2-0.4% of 0.1-0.2% that account for formula gross weight 0.2%.
According to the present invention, described dispersion agent is modified polyurethane superpolymer, be selected from 4010 of EFKA company, described defoamer is not for containing organosilyl polymer-type defoamer, be selected from the BYK1794 of Bi Ke chemical company, described flow agent, for containing propenyl functional group 2 methyl polysiloxanes, is selected from the BYK3575 of Bi Ke chemical company, described anti-settling agent is hydrophobic type aerosil, is selected from the R972 of goldschmidt chemical corporation.
According to the present invention, described filling powder comprises talcum powder, the transparent powder of 5-10% and the polishing powder of 1-2% of the 5-10% that accounts for formula gross weight.
According to the present invention, described talcum powder is 1250 order talcum powder, is selected from sweet osmanthus board 1250 talcum powder; Described transparent powder is 1500 order transparent powders, is selected from golden monkey board TM-1500 transparent powder; Described polishing powder is Zinic stearas, is selected from the pure Zinic stearas TV-B of Zhong Kai company.
The preparation method who the invention provides a kind of above-mentioned solvent-free UV vacuum spraying primer base, it comprises the steps:
Step 1, takes each component by weight percentage: low sticky epoxy acrylic resin 25～32%, polyurethane acrylic resin 2～4%, functional monomer 41～49%, light trigger 5～7%, auxiliary agent 0.7-1.1%, filling powder 11-22%;
Step 2, drops into described low sticky epoxy acrylic resin, polyurethane acrylic resin and functional monomer to disperse in cylinder, with high speed dispersor middling speed dispersion 10～15 minutes,
Step 3, drops into described auxiliary agent in described dispersion cylinder, uses high speed dispersor high speed dispersion 10～15 minutes;
Step 4, drops into described filling powder in described dispersion cylinder, high speed dispersion 20～30 minutes;
Step 5, drops into described light trigger in described dispersion cylinder, uses high speed dispersor high speed dispersion 10～15 minutes, and 120 order filter-cloth filterings, to obtain final product.
Preferably, the rotating speed of the high speed dispersor of described step 2 is 600～800 revs/min; The rotating speed of the high speed dispersor of described step 3, step 4 and step 5 is 1200～1500 revs/min.
Solvent-free UV vacuum spraying spraying primer base of the present invention, have the following advantages: 100% solid content does not have volatile matter discharge to meet environmental requirement, on vacuum spraying machine, construction has good atomization, and coating can obtain 100% utilization, and the film after spraying obtains quick levelling and reaches excellent minute surface filling effect, onepot coating allows construction become convenient and swift, it is fast that while coating of the present invention also has curing speed concurrently, and hardness is high, and transparency is good, strong adhesion, the advantages such as easy polishing.
Embodiment
Below in conjunction with specific embodiment explanation the present invention, but following examples are only for the present invention is described but not for limiting the scope of the invention.
The starting material component of embodiment 1～4 and formulation by weight (unit: kg) are as shown in table 1.
Table 1
Wherein, the present invention adopts urethane acrylate, low sticky epoxy acrylic resin, functional monomer Viscoat 295 (TMPTA), tripropylene glycol diacrylate (TPGDA), methacrylic acid-13-hydroxyl ethyl ester (HEMA), in this coating system as film forming matter.Low sticky epoxy acrylic resin adopts long profit to send out the YTM2100 of chemical industry, it is high-solid lower-viscosity resin, viscosity only has 5000mpa.s left and right, in the present invention as matrix resin, can reach the vacuum spraying low viscous requirement of constructing, film has very high hardness and endurance simultaneously, what urethane acrylate the present invention adopted is the snappiness aromatic urethane CALCIUM ACRYLATE containing two functional groups, it has good snappiness, improve the fragility of low sticky epoxy acrylic resin as assisted resin, adopt different functional groups monomer complex just to take into account diluting power, curing speed, the various requirements such as sticking power, it is modified polyurethane superpolymer that the present invention adopts dispersion agent, select 4010 of EFKA company, it can allow filling powder in system have good dispersion and prevent the flocculation of powder precipitation, coating store and construction process in for anti-settling sag prevention, the present invention adds appropriate hydrophobic type aerosil, be selected from the R972 of goldschmidt chemical corporation, coating all can produce bubble in production and construction process, the existence of bubble can cause film to produce defect, need defoamer to improve, defoamer can provide good defoaming effect, prevent the generation of paint film defect, the present invention adopts defoamer for not containing organosilyl polymer-type defoamer, select the BYK1794 of BYK company, in formulation for coating material, add appropriate flow agent, can improve coating flow leveling, in the present invention, flow agent adopts containing propenyl functional group dimethyl polysiloxane, select the up-to-date leveling auxiliary agent for radiation curing of Bi Ke chemical company
light trigger can absorb ultraviolet energy, produce radical, cause again coating oligopolymer and monomer, realize polymerization, crosslinked, make system be cross-linked film forming, it is that 2-hydroxy-2-methyl-1-phenyl-1-acetone (1173) and benzophenone and reactive amines are used in conjunction with that the present invention adopts light trigger, can allow system of the present invention evenly solidify comprehensively, in system of the present invention, transparent powder and talcum powder mainly provide fillibility and transparency, the appropriate interpolation of polishing powder Zinic stearas can effectively improve sanding property, coating store and construction process in for anti-settling sag prevention, the present invention adds appropriate aerosil anti-settling agent.
The preparation method of above-mentioned solvent-free UV vacuum spraying spraying primer base, it comprises the steps:
Step 1, takes each component by weight percentage: low sticky epoxy acrylic resin 25～32%, polyurethane acrylic resin 2～4%, functional monomer 41～49%, light trigger 5～7%, auxiliary agent 0.7-1.1%, filling powder 11-22%;
Wherein, described auxiliary agent comprises the dispersion agent, defoamer, the flow agent of 0.2-0.3% and the anti-settling agent of 0.2-0.4% of 0.1-0.2% that account for formula gross weight 0.2%; Described filling powder comprises the talcum powder, the transparent powder of 5-10% and the polishing powder of the 1-2% composition that account for formula gross weight 5-10%;
Step 2, by described low sticky epoxy acrylic resin, polyurethane acrylic resin and functional monomer, dropped into and disperses in cylinder, with high speed dispersor middling speed dispersion 10～15 minutes;
Step 3, drops into described dispersion agent, defoamer, flow agent and anti-settling agent successively in described dispersion cylinder, uses high speed dispersor high speed dispersion 10～15 minutes;
Step 4, drops into described talcum powder, transparent powder and polishing powder in described dispersion cylinder, high speed dispersion 20～30 minutes successively;
Step 5, drops into described light trigger in described dispersion cylinder, uses high speed dispersor high speed dispersion 10～15 minutes, and 120 order filter-cloth filterings, to obtain final product.
Preferably, the rotating speed of the high speed dispersor of described step 2 is 600～800 revs/min; Step 3, step 4 and step 5, the rotating speed of high speed dispersor be 1200～1500 revs/min.
After testing, the solvent-free UV vacuum spraying primer base of embodiment 1～4 preparation, is the transparent liquid of oyster white, and solid content is 98～99wt%, and viscosity is 23～28 (25 DEG C of condition Xia Yan field cups of temperature (being coated with-2 glasss) surveys), fineness≤50um.Adopt vacuum spraying machine to carry out spraying application, special-shaped line, with after the application of solvent-free UV vacuum spraying primer base, carries out photocuring, and coating atomization performance is good, non-volatile deposits yields, good leveling property, paint film transparency is high, and hardness is high, sticking power is good, and drying property is good, easily sanding and not scab paper.Solvent-free UV vacuum spraying primer base coating of the present invention should be avoided UV-light or direct irradiation of sunlight in the time storing, and the required UV-light energy of semicure is 200 scholar 50mj/m
2, entirely solidifying required UV-light energy is 400 scholar 50mj/m
2.
The embodiment 1～4 of table 1 makes described solvent-free UV vacuum spraying primer base by above-mentioned preparation method and sprays the transparent coating performance obtaining in table 2 by vacuum spray painting machine again.
Table 2 Physical properties of coating film test result
Can find out from table 1-table 2, film after the solvent-free UV vacuum spraying primer base construction of above-described embodiment 1-4 has the following advantages: 100% solid content does not have volatile matter discharge to meet environmental requirement, on vacuum spraying machine, construction has good atomization, coating can obtain 100% utilization, film after spraying obtains quick levelling and reaches excellent smooth smooth filling effect, onepot coating allows construction become convenient and swift, it is fast that while coating of the present invention also has curing speed concurrently, hardness is good, transparency is good, strong adhesion, the advantages such as easy polishing.
The present invention is not limited to above-mentioned embodiment, if various changes of the present invention or modification are not departed to the spirit and scope of the present invention, if within these changes and modification belong to claim of the present invention and equivalent technologies scope, the present invention is also intended to comprise these changes and modification.
Claims (10)
1. a solvent-free UV vacuum spraying primer base, is characterized in that, it comprise component and weight percent as follows:
2. solvent-free UV vacuum spraying primer base as claimed in claim 1, is characterized in that: described low sticky epoxy acrylic resin is the low sticky epoxy acrylic resin of UV that reacts synthetic by bisphenol A epoxide resin and acroleic acid esterification.
3. solvent-free UV vacuum spraying primer base as claimed in claim 1, is characterized in that: described polyurethane acrylic resin be by aromatic diisocyanate and the first chain extending reaction of polyether glycol, again with the UV light-cured polyurethane acrylic resin of synthetic a kind of two senses of crylic acid hydroxy ester esterification.
4. solvent-free UV vacuum spraying primer base as claimed in claim 1, is characterized in that: described functional monomer is one or more the mixture in Viscoat 295, tripropylene glycol diacrylate, methacrylic acid-13-hydroxyl ethyl ester.
5. solvent-free UV vacuum spraying primer base as claimed in claim 1, is characterized in that: described light trigger is the mixture of 2-hydroxy-2-methyl-1-phenyl-1-acetone and benzophenone and reactive amines.
6. solvent-free UV vacuum spraying primer base as claimed in claim 1, is characterized in that: also comprise auxiliary agent, it accounts for the 0.7-1.1% of formula gross weight.
7. solvent-free UV vacuum spraying primer base as claimed in claim 6, is characterized in that: described auxiliary agent comprises and accounts for the dispersion agent of formula gross weight 0.2%, defoamer, the flow agent of 0.2-0.3% and the anti-settling agent of 0.2-0.4% of 0.1-0.2%.
8. solvent-free UV vacuum spraying primer base as claimed in claim 1, is characterized in that: described filling powder comprises the talcum powder, the transparent powder of 5-10% and the polishing powder of 1-2% that account for formula gross weight 5-10%.
9. a preparation method for solvent-free UV vacuum spraying primer base, is characterized in that, its step is as follows successively:
Step 1, takes each component by weight percentage: low sticky epoxy acrylic resin 25～32%, polyurethane acrylic resin 2～4%, functional monomer 41～49%, light trigger 5～7%, auxiliary agent 0.7-1.1%, filling powder 11-22%;
Step 2, dropped into described low sticky epoxy acrylic resin, polyurethane acrylic resin and functional monomer to disperse in cylinder, with high speed dispersor middling speed dispersion 10～15 minutes;
Step 3, drops into described auxiliary agent in described dispersion cylinder, uses high speed dispersor high speed dispersion 10～15 minutes;
Step 4, drops into described filling powder in described dispersion cylinder, high speed dispersion 20～30 minutes;
Step 5, drops into described light trigger in described dispersion cylinder, uses high speed dispersor high speed dispersion 10～15 minutes, and 120 order filter-cloth filterings, to obtain final product.
10. the preparation method of solvent-free UV vacuum spraying primer base as claimed in claim 9, is characterized in that:
The rotating speed of the high speed dispersor of described step 2 is 600～800 revs/min; Described step 3, step 4
And the rotating speed of the high speed dispersor of step 5 is 1200～1500 revs/min.
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| CN201410412349.6A CN104152007A (en) | 2014-08-20 | 2014-08-20 | Solvent-free UV vacuum spraying priming paint and preparation method thereof |
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| CN201410412349.6A CN104152007A (en) | 2014-08-20 | 2014-08-20 | Solvent-free UV vacuum spraying priming paint and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567063A (en) * | 2015-04-24 | 2016-05-11 | 湖南省金海科技有限公司 | Ultraviolet curable coating for low energy curing and preparation method of ultraviolet curable coating |
| CN106634459A (en) * | 2016-11-22 | 2017-05-10 | 天长市金陵电子有限责任公司 | UV-curing electrostatic spraying paint |
| CN106752752A (en) * | 2017-01-12 | 2017-05-31 | 广东美涂士建材股份有限公司 | Timber sweeps coating and preparation method thereof and construction technology with solvent-free UV hands |
| CN107384139A (en) * | 2017-08-10 | 2017-11-24 | 合肥市田源精铸有限公司 | A kind of solvent-free rust-proof top-coat for metal |
| CN107446467A (en) * | 2017-08-22 | 2017-12-08 | 佛山市高明福隆斯新材料科技有限公司 | A kind of solvent-free airless spraying UV furniture priming paint |
| CN111269640A (en) * | 2020-04-15 | 2020-06-12 | 山东和秀新材料有限公司 | UV (ultraviolet) curing coating for wood board and preparation method thereof |
| CN112680057A (en) * | 2020-12-11 | 2021-04-20 | 安徽扬子地板股份有限公司 | Floor surface decorative material and preparation method thereof |
| CN114149739A (en) * | 2021-12-23 | 2022-03-08 | 中紫光源科技(广州)股份有限公司 | UVC curing process for paint |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105567063A (en) * | 2015-04-24 | 2016-05-11 | 湖南省金海科技有限公司 | Ultraviolet curable coating for low energy curing and preparation method of ultraviolet curable coating |
| CN105567063B (en) * | 2015-04-24 | 2018-08-24 | 湖南省金海科技有限公司 | A kind of ultraviolet-curing paint of Lower Energy Consumption Curing and preparation method thereof |
| CN106634459A (en) * | 2016-11-22 | 2017-05-10 | 天长市金陵电子有限责任公司 | UV-curing electrostatic spraying paint |
| CN106752752A (en) * | 2017-01-12 | 2017-05-31 | 广东美涂士建材股份有限公司 | Timber sweeps coating and preparation method thereof and construction technology with solvent-free UV hands |
| CN106752752B (en) * | 2017-01-12 | 2019-06-14 | 广东美涂士建材股份有限公司 | Timber sweeps coating and preparation method thereof and construction technology with solvent-free UV hand |
| CN107384139A (en) * | 2017-08-10 | 2017-11-24 | 合肥市田源精铸有限公司 | A kind of solvent-free rust-proof top-coat for metal |
| CN107446467A (en) * | 2017-08-22 | 2017-12-08 | 佛山市高明福隆斯新材料科技有限公司 | A kind of solvent-free airless spraying UV furniture priming paint |
| CN111269640A (en) * | 2020-04-15 | 2020-06-12 | 山东和秀新材料有限公司 | UV (ultraviolet) curing coating for wood board and preparation method thereof |
| CN112680057A (en) * | 2020-12-11 | 2021-04-20 | 安徽扬子地板股份有限公司 | Floor surface decorative material and preparation method thereof |
| CN114149739A (en) * | 2021-12-23 | 2022-03-08 | 中紫光源科技(广州)股份有限公司 | UVC curing process for paint |
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