CN103980813A - Cycloaliphatic epoxy polyurethane acrylate ultraviolet-curable coating and preparation method of ultraviolet-curable coating - Google Patents
Cycloaliphatic epoxy polyurethane acrylate ultraviolet-curable coating and preparation method of ultraviolet-curable coating Download PDFInfo
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- CN103980813A CN103980813A CN201410212211.1A CN201410212211A CN103980813A CN 103980813 A CN103980813 A CN 103980813A CN 201410212211 A CN201410212211 A CN 201410212211A CN 103980813 A CN103980813 A CN 103980813A
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Abstract
The invention discloses a modified cycloaliphatic epoxy polyurethane acrylate ultraviolet-curable coating. The coating comprises the following chemical components in percentage by weight: 40-85% of modified cycloaliphatic epoxy polyurethane acrylate prepolymer, 10-55% of activated monomer diluent, 0.5-5% of photoinitiator, 0.1-2% of leveling agent, and 0.1-5% of adhesion promoter, wherein the sum of weight percentage of the raw materials is 100%. The invention also discloses a preparation method of the modified cycloaliphatic epoxy polyurethane acrylate ultraviolet-curable coating. The coating disclosed by the invention has the characteristics of strong impact resistance, high adhesion and the like, shrinkage of the curing system is small and the flexibility of the cured film is good. The coating can be used as coating materials of various metal sheets.
Description
Technical field
The present invention relates to a kind of ultraviolet-curing paint and preparation method thereof, be specifically related to alicyclic epoxy urethane acrylate ultraviolet-curing paint of a kind of modification and preparation method thereof.
Background technology
Ultraviolet-curing paint is a kind of environmental protection, efficient, energy-conservation novel green coating, and it is mainly made up of ultraviolet curable resin, reactive monomer thinner, light trigger and various auxiliary agent.Under UV-irradiation, the light trigger in coating will generate free radical or ionic group, thereby cause the unsaturated double-bond of ultraviolet curable resin and reactive monomer thinner and cause chemical reaction, realize solidifying of coating.Compared with heat curing coating, ultraviolet-curing paint produces hardly volatile organic matter at solidification process and pollutes, and has avoided in traditional coating solidification process and serious exhaust emission; Meanwhile, in ultraviolet-curing paint solidification process, without heating, saved the energy expenditure of paint solidification process; In addition, UV-light paint solidification process equipment used floor space is little, and production efficiency is high.Therefore, the share of ultraviolet-curing paint in Coating Market increases gradually.
Although ultraviolet-curing paint has above-mentioned many advantages, but in a lot of Application Areass, the film performance of ultraviolet-curing paint has a certain distance compared with traditional heat curing coating, and wherein a very important reason is that ultraviolet-curing paint shrinking percentage in fast setting process is high.Research shows, can in fast setting process, eliminate a part of string stress with the molecule of fat ring texture, reduces the volumetric shrinkage of film.Therefore, patent 201110189918 discloses a kind of Alicyclic epoxy acrylate prepolymer to improve the string stress in paint solidification process, but this prepolymer is made by cycloaliphatic epoxy resin and acrylic or methacrylic acid direct reaction, this prepolymer molecular weight, film is more crisp.For this reason, this patent discloses ultraviolet-curing paint that a kind of alicyclic epoxy polyurethane acrylate prepolymer of modification is matrix resin and preparation method thereof, this coating is in keeping the original excellent properties of alicyclic epoxy urethane acrylate class coating, greatly improved its snappiness and sticking power, this coating can be used as the use of the topcoating of the sheet metals such as tinplate, galvanized sheet, stainless steel plate.
Summary of the invention
Technical problem: the object of this invention is to provide a kind of cycloaliphatic polyurethane acrylate ultraviolet light curable coating, this ultraviolet-curing paint has that curing system shrinking percentage is little, shock resistance is strong, cured film snappiness is good, sticking power high.
Another object of the present invention is to provide a kind of preparation method of cycloaliphatic polyurethane acrylate ultraviolet light curable coating of modification.
Technical scheme: the present invention is a kind of alicyclic epoxy urethane acrylate ultraviolet-curing paint, and the chemical composition of this ultraviolet-curing paint and weight percentage are:
The shared weight percentage sum of each raw material is 100%.
Described reactive monomer thinner is the combination with one or more acrylate-based compounds or these compounds.
Described light trigger is one or more in alpha-hydroxyalkyl benzophenone class, benzil class, α-amine alkylbenzene ketone, acylphosphine oxide.
Described flow agent is esters of acrylic acid flow agent.
Described adhesion promoter is one or more in Organophosphonate oligomers or titanate coupling agent.
The alicyclic epoxy polyurethane acrylate prepolymer of described modification is to be made by the cycloaliphatic epoxy resin grafted polyurethane acrylate after modification containing two epoxide group structures.
The alicyclic epoxy polyurethane acrylate prepolymer of described modification is made by cycloaliphatic epoxy resin grafted polyurethane acrylate after modification.The structural formula of this cycloaliphatic epoxy resin is as shown in A-E.
The preparation method of the alicyclic epoxy urethane acrylate ultraviolet-curing paint of modification of the present invention comprises the following steps:
Step 1: urethane acrylate synthetic
In reactor, add isophorone diisocyanate, MEHQ and dibutyl tin laurate, the MEHQ adding and the weight of dibutyl tin laurate are respectively 0.05-0.5% and the 0.1-1% of isophorone diisocyanate weight, by constant temperature of reaction system at 23-27 DEG C, under whipped state, slowly add wherein vinylformic acid hydroxyl value, its molar weight adding is 1-1.1:1 with the ratio of isophorone diisocyanate molar weight, then be warming up to continuation reaction at 28-32 DEG C and stop after 0.5-1.5 hour, obtain urethane acrylate;
Step 2: the preparation of the cycloaliphatic epoxy resin of modification
In reactor, add a certain amount of MALEIC ANHYDRIDE and dibasic alcohol polymkeric substance according to the mol ratio of 1-1.1:1, and to add weight be the MEHQ of reactant gross weight 0.05-0.3%, be warming up to 65-85 DEG C, under certain stirring velocity, react 0.5-3 hour, make cis-butenedioic anhydride dibasic alcohol polymkeric substance monoesters, then system temperature is risen to 90-110 DEG C, under nitrogen protection, slowly adding cycloaliphatic epoxy resin and the weight of metering is the triethylamine of epoxy resin 0.1-0.5%, stopped reaction after stirring reaction 2-8 hour, cooling discharge, make the cycloaliphatic epoxy resin of modification,
Step 3: the preparation of the alicyclic epoxy polyurethane acrylate prepolymer of modification
The urethane acrylate monomer that adds a certain amount of step 1 to make in reactor, be warming up to 40-60 DEG C, under nitrogen protection, cycloaliphatic epoxy resin and weight to the modification that adds in system the step 2 of metering to make are respectively the dibutyl tin laurate of system gross weight 0.1-0.5% and the MEHQ of 0.05-0.3%, stopped reaction after stirring reaction 1-8 hour, makes the cycloaliphatic polyurethane acrylic ester prepolymer of modification;
Step 4: the preparation of the alicyclic epoxy urethane acrylate ultraviolet-curing paint of modification
To the alicyclic epoxy polyurethane acrylate prepolymer of the modification that adds in cleaning vessel step 3 to make, described reactive monomer thinner, light trigger, flow agent, adhesion promoter, its weight percentage is respectively 40-85%, 10-55%, 0.5-5%, 0.1-2% and 0.1-5%, and the shared weight percentage sum of each raw material is 100%.Said mixture mixes and obtains the alicyclic epoxy urethane acrylate ultraviolet-curing paint of modification at 30-70 DEG C.
As preferably, the weight of the MEHQ that step 1 adds is the 0.05-0.5% of isophorone diisocyanate weight; The weight of the dibutyl tin laurate adding is the 0.1-1% of isophorone diisocyanate weight,
As preferably, the dibasic alcohol polymkeric substance that step 2 adds is polyoxyethylene glycol or polypropylene glycol, and its molecular weight is 200-2000,
As preferably, in the cycloaliphatic epoxy resin molecular structure that step 2 adds, should there are two epoxide groups,
As preferably, the cycloaliphatic epoxy resin of what step 2 added have two epoxide groups, its molecular structure as shown in A-E,
As preferably, the mole number of the cycloaliphatic epoxy resin that step 2 adds is 1-2:1 with the ratio of cis-butenedioic anhydride dibasic alcohol polymkeric substance monoesters mole number.
As preferably, the mole number of the urethane acrylate monomer that step 3 adds is 0.3-0.9:1 with the ratio of the cycloaliphatic epoxy resin institute hydroxyl mole number of added modification.
Beneficial effect: the present invention has prepared a kind of alicyclic epoxy urethane acrylate ultraviolet-curing paint of modification, coating prepared by the present invention has that curing system shrinking percentage is little, shock resistance is strong, cured film snappiness is good, sticking power high, can, at fast setting under UV-irradiation, be applicable to the topcoating as various sheet metals.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
Embodiment mono-:
Step 1: urethane acrylate synthetic
In the reactor that whipping appts, temperature controlling system are housed, add 222kg isophorone diisocyanate, 5kg MEHQ, 11kg dibutyl tin laurate, after mixing, be warming up to 25 DEG C, under whipped state, slowly add 130kg Propylene glycol monoacrylate, then be warming up to 30 DEG C, react discharging after 1 hour, make urethane acrylate.
Step 2: the preparation of the cycloaliphatic epoxy resin of modification
Whipping appts is being housed, in the reactor of temperature controlling system, add 98kg MALEIC ANHYDRIDE and 200kg polyoxyethylene glycol (molecular-weight average is 200), and add 0.5kg stopper MEHQ, be warming up to 75 DEG C, under whipped state, react stopped reaction after 1.5 hours, obtain cis-butenedioic anhydride polyoxyethylene glycol monoesters, then system temperature is risen to 100 DEG C, under nitrogen protection, slowly add 504kg cycloaliphatic epoxy resin---3, 4-epoxycyclohexyl manthanoate, and 1.5kg triethylamine, stirring reaction is stopped reaction after 4 hours, cooling discharge, make the cycloaliphatic epoxy resin of modification.
Step 3: the preparation of the alicyclic epoxy polyurethane acrylate prepolymer of modification
The urethane acrylate monomer that adds 1067kg step 1 to make in the reactor that whipping appts, temperature controlling system are housed; be warming up to 50 DEG C; under nitrogen protection; to cycloaliphatic epoxy resin and 6kg dibutyl tin laurate and the 3kg MEHQ of the modification that adds in system 1002kg step 2 to make; stirring reaction is stopped reaction after 4 hours, makes the cycloaliphatic polyurethane acrylic ester prepolymer of modification.
Step 4: the preparation of the alicyclic epoxy urethane acrylate ultraviolet-curing paint of modification
To alicyclic epoxy polyurethane acrylate prepolymer, 26.8kg isobornyl acrylate, 3kgIrgacure184 light trigger, 0.2kgTEGOWet500 base material wetting agent and the 0.1kg adhesion promoter of the modification that adds in cleaning vessel 70kg step 3 to make, at 40 DEG C, be stirred to completely and mix.
The coating that above-mentioned preparation is completed is coated on tinplate, is placed under the ultraviolet lamp that power is 1KW, irradiates 5 seconds apart from lamp source 30cm, completes paint solidification, and gained paint film property is measured as shown in table 1.
Embodiment bis-:
Step 1: urethane acrylate synthetic
Identical with embodiment 1.
Step 2: the preparation of the cycloaliphatic epoxy resin of modification
Whipping appts is being housed, in the reactor of temperature controlling system, add 98kg MALEIC ANHYDRIDE and 800kg polyoxyethylene glycol (molecular-weight average is 800), and add 1.4kg stopper MEHQ, be warming up to 85 DEG C, under whipped state, react stopped reaction after 1 hour, obtain cis-butenedioic anhydride polyoxyethylene glycol monoesters, then system temperature is risen to 110 DEG C, under nitrogen protection, slowly add 166kg cycloaliphatic epoxy resin---two ((3, 4-epoxycyclohexyl) methyl) adipic acid ester, and 0.5kg triethylamine, stopped reaction after 2 hours after stirring reaction, cooling discharge, make the cycloaliphatic epoxy resin of modification.
Step 3: the preparation of the alicyclic epoxy polyurethane acrylate prepolymer of modification
The urethane acrylate monomer that adds 845kg step 1 to make in the reactor that whipping appts, temperature controlling system are housed; be warming up to 60 DEG C; under nitrogen protection; to cycloaliphatic epoxy resin and 6kg dibutyl tin laurate and the 3kg MEHQ of the modification that adds in system 1064kg step 2 to make; stirring reaction is stopped reaction after 1 hour, makes the cycloaliphatic polyurethane acrylic ester prepolymer of modification.
Step 4: the preparation of the alicyclic epoxy urethane acrylate ultraviolet-curing paint of modification
To alicyclic epoxy polyurethane acrylate prepolymer, the 56.9kg1 of the modification that adds in cleaning vessel 40kg step 3 to make, 6-hexylene glycol double methacrylate, 1kgIrgacure187 light trigger, 0.1kgTEGOWet500 base material wetting agent and 2kg adhesion promoter are stirred to completely and mix at 50 DEG C.
The coating that above-mentioned preparation is completed is coated on tinplate, is placed under the ultraviolet lamp that power is 1KW, irradiates 5 seconds apart from lamp source 30cm, completes paint solidification, and gained paint film property is measured as shown in table 1.
Embodiment tri-:
Step 1: urethane acrylate synthetic
Identical with embodiment 1.
Step 2: the preparation of the cycloaliphatic epoxy resin of modification
Whipping appts is being housed, in the reactor of temperature controlling system, add 98kg MALEIC ANHYDRIDE and 400kg polypropylene glycol (molecular-weight average is 400), and add 0.7kg stopper MEHQ, be warming up to 65 DEG C, under whipped state, react stopped reaction after 3 hours, obtain cis-butenedioic anhydride polypropylene glycol monoesters, then system temperature is risen to 90 DEG C, under nitrogen protection, slowly add 202kg cycloaliphatic epoxy resin---titanium dioxide double cyclopentenyl ether, and 0.6kg triethylamine, 8 hours stopped reaction of stirring reaction, cooling discharge, make the cycloaliphatic epoxy resin of modification.
Step 3: the preparation of the alicyclic epoxy polyurethane acrylate prepolymer of modification
The urethane acrylate monomer that adds 422kg step 1 to make in the reactor that whipping appts, temperature controlling system are housed; be warming up to 40 DEG C; under nitrogen protection; to cycloaliphatic epoxy resin and 3.4kg dibutyl tin laurate and the 1.7kg MEHQ of the modification that adds in system 700kg step 2 to make; 8 hours stopped reaction of stirring reaction, make the cycloaliphatic polyurethane acrylic ester prepolymer of modification.
Step 4: the preparation of the alicyclic epoxy urethane acrylate ultraviolet-curing paint of modification
To alicyclic epoxy polyurethane acrylate prepolymer, 21.8kg pentaerythritol triacrylate, 5kgIrgacure187 light trigger, 0.2kgTEGOWet500 base material wetting agent and the 3kg adhesion promoter of the modification that adds in cleaning vessel 70kg step 3 to make, at 70 DEG C, be stirred to completely and mix.
The coating that above-mentioned preparation is completed is coated on tinplate, is placed under the ultraviolet lamp that power is 1KW, irradiates 5 seconds apart from lamp source 30cm, completes paint solidification, and gained paint film property is measured as shown in table 1.
The coating property of table 1 embodiment mono-～embodiment tri-
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each integral part all available prior art realized.
Claims (8)
1. an alicyclic epoxy urethane acrylate ultraviolet-curing paint, is characterized in that the chemical composition of this ultraviolet-curing paint and weight percentage are:
The shared weight percentage sum of each raw material is 100%.
2. alicyclic epoxy urethane acrylate ultraviolet-curing paint according to claim 1, is characterized in that: described reactive monomer thinner is the combination with one or more acrylate-based compounds or these compounds.
3. alicyclic epoxy urethane acrylate ultraviolet-curing paint according to claim 1, is characterized in that: described light trigger is one or more in alpha-hydroxyalkyl benzophenone class, benzil class, α-amine alkylbenzene ketone, acylphosphine oxide.
4. alicyclic epoxy urethane acrylate ultraviolet-curing paint according to claim 1, is characterized in that: described flow agent is esters of acrylic acid flow agent.
5. alicyclic epoxy urethane acrylate ultraviolet-curing paint according to claim 1, is characterized in that: described adhesion promoter is one or more in Organophosphonate oligomers or titanate coupling agent.
6. alicyclic epoxy urethane acrylate ultraviolet-curing paint according to claim 1, is characterized in that: the alicyclic epoxy polyurethane acrylate prepolymer of described modification is to be made by the cycloaliphatic epoxy resin grafted polyurethane acrylate after modification containing two epoxide group structures.
7. alicyclic epoxy urethane acrylate ultraviolet-curing paint according to claim 1, is characterized in that: the alicyclic epoxy polyurethane acrylate prepolymer of described modification is made by cycloaliphatic epoxy resin grafted polyurethane acrylate after modification.
8. a preparation method who prepares the alicyclic epoxy urethane acrylate ultraviolet-curing paint as described in claim 1,2,3,4,5 or 6, is characterized in that: the method comprises the following steps:
Step 1: urethane acrylate synthetic
In reactor, add isophorone diisocyanate, MEHQ and dibutyl tin laurate, the MEHQ adding and the weight of dibutyl tin laurate are respectively 0.05-0.5% and the 0.1-1% of isophorone diisocyanate weight, by constant temperature of reaction system at 23-27 DEG C, under whipped state, slowly add wherein vinylformic acid hydroxyl value, its molar weight adding is 1-1.1:1 with the ratio of isophorone diisocyanate molar weight, then be warming up to continuation reaction at 28-32 DEG C and stop after 0.5-1.5 hour, obtain urethane acrylate;
Step 2: the preparation of the cycloaliphatic epoxy resin of modification
In reactor, add a certain amount of MALEIC ANHYDRIDE and dibasic alcohol polymkeric substance according to the mol ratio of 1-1.1:1, and to add weight be the MEHQ of reactant gross weight 0.05-0.3%, be warming up to 65-85 DEG C, under certain stirring velocity, react 0.5-3 hour, make cis-butenedioic anhydride dibasic alcohol polymkeric substance monoesters, then system temperature is risen to 90-110 DEG C, under nitrogen protection, slowly adding cycloaliphatic epoxy resin and the weight of metering is the triethylamine of epoxy resin 0.1-0.5%, stopped reaction after stirring reaction 2-8 hour, cooling discharge, make the cycloaliphatic epoxy resin of modification,
Step 3: the preparation of the alicyclic epoxy polyurethane acrylate prepolymer of modification
The urethane acrylate monomer that adds a certain amount of step 1 to make in reactor, be warming up to 40-60 DEG C, under nitrogen protection, cycloaliphatic epoxy resin and weight to the modification that adds in system the step 2 of metering to make are respectively the dibutyl tin laurate of system gross weight 0.1-0.5% and the MEHQ of 0.05-0.3%, stopped reaction discharging after stirring reaction 1-8 hour, makes the cycloaliphatic polyurethane acrylic ester prepolymer of modification;
Step 4: the preparation of the alicyclic epoxy urethane acrylate ultraviolet-curing paint of modification
To the alicyclic epoxy polyurethane acrylate prepolymer of the modification that adds in cleaning vessel step 3 to make, described reactive monomer thinner, light trigger, flow agent, adhesion promoter, its weight percentage is respectively 40-85%, 10-55%, 0.5-5%, 0.1-2% and 0.1-5%, and the shared weight percentage sum of each raw material is 100%.Said mixture mixes and obtains the alicyclic epoxy urethane acrylate ultraviolet-curing paint of modification at 30-70 DEG C.
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| CN104293164A (en) * | 2014-10-13 | 2015-01-21 | 东南大学 | Oleic acid modified aliphatic epoxy polyurethane acrylic ester ultraviolet curing coating and preparation method thereof |
| CN104610871A (en) * | 2014-12-19 | 2015-05-13 | 长飞光纤光缆股份有限公司 | Radiation curing coating |
| CN104765251A (en) * | 2014-11-06 | 2015-07-08 | 青岛科技大学 | High-toughness photosensitive resin for 3D printing and preparation method thereof. |
| CN104774549A (en) * | 2015-01-19 | 2015-07-15 | 长飞光纤光缆股份有限公司 | Optical coating and application thereof |
| CN105086916A (en) * | 2015-08-05 | 2015-11-25 | 天津沃尔提莫新材料技术有限公司 | High-light-transmittance UV-moisture dual-curing adhesive |
| CN106626613A (en) * | 2016-12-23 | 2017-05-10 | 青岛海尔特种钢板研制开发有限公司 | Precoated metal plate and manufacturing method thereof |
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| CN108063255A (en) * | 2017-11-17 | 2018-05-22 | 合肥国轩高科动力能源有限公司 | Modified polyacrylic acid type negative electrode binder |
| CN108409953A (en) * | 2018-03-29 | 2018-08-17 | 广州市嵩达新材料科技有限公司 | A kind of epoxy acrylic resin of three-functionality-degree and its preparation method and application |
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| CN104293164A (en) * | 2014-10-13 | 2015-01-21 | 东南大学 | Oleic acid modified aliphatic epoxy polyurethane acrylic ester ultraviolet curing coating and preparation method thereof |
| CN104765251A (en) * | 2014-11-06 | 2015-07-08 | 青岛科技大学 | High-toughness photosensitive resin for 3D printing and preparation method thereof. |
| CN105733421B (en) * | 2014-12-09 | 2018-12-21 | 比亚迪股份有限公司 | A kind of ultraviolet solidifying protection paint and preparation method thereof |
| CN107001570A (en) * | 2014-12-17 | 2017-08-01 | 巴斯夫欧洲公司 | The coating composition of radiation-hardenable based on chain growth and the polyurethane being crosslinked |
| CN107001570B (en) * | 2014-12-17 | 2021-05-07 | 巴斯夫欧洲公司 | Radiation-curable coating compositions based on chain-extended and crosslinked polyurethanes |
| CN104610871A (en) * | 2014-12-19 | 2015-05-13 | 长飞光纤光缆股份有限公司 | Radiation curing coating |
| WO2016095560A1 (en) * | 2014-12-19 | 2016-06-23 | 长飞光纤光缆股份有限公司 | Radiation curable coating |
| WO2016115899A1 (en) * | 2015-01-19 | 2016-07-28 | 长飞光纤光缆股份有限公司 | Optical coating and application thereof |
| CN104774549A (en) * | 2015-01-19 | 2015-07-15 | 长飞光纤光缆股份有限公司 | Optical coating and application thereof |
| CN105086916B (en) * | 2015-08-05 | 2017-10-17 | 天津沃尔提莫新材料技术股份有限公司 | A kind of double curing adhesives of high printing opacity UV moistures |
| CN105086916A (en) * | 2015-08-05 | 2015-11-25 | 天津沃尔提莫新材料技术有限公司 | High-light-transmittance UV-moisture dual-curing adhesive |
| CN106626613A (en) * | 2016-12-23 | 2017-05-10 | 青岛海尔特种钢板研制开发有限公司 | Precoated metal plate and manufacturing method thereof |
| CN109666324A (en) * | 2017-10-17 | 2019-04-23 | 无锡海特圣大光电材料科技有限公司 | A kind of tinplate UV cationic curing white primer and preparation method thereof |
| CN108063255B (en) * | 2017-11-17 | 2021-01-08 | 合肥国轩高科动力能源有限公司 | Modified polyacrylic acid type negative electrode binder |
| CN108063255A (en) * | 2017-11-17 | 2018-05-22 | 合肥国轩高科动力能源有限公司 | Modified polyacrylic acid type negative electrode binder |
| CN108409953A (en) * | 2018-03-29 | 2018-08-17 | 广州市嵩达新材料科技有限公司 | A kind of epoxy acrylic resin of three-functionality-degree and its preparation method and application |
| CN108409953B (en) * | 2018-03-29 | 2020-03-27 | 广州市嵩达新材料科技有限公司 | Tri-functionality epoxy acrylic resin and preparation method and application thereof |
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