CN117229669A - UV-LED curing cationic composition and preparation method thereof - Google Patents
UV-LED curing cationic composition and preparation method thereof Download PDFInfo
- Publication number
- CN117229669A CN117229669A CN202311391856.1A CN202311391856A CN117229669A CN 117229669 A CN117229669 A CN 117229669A CN 202311391856 A CN202311391856 A CN 202311391856A CN 117229669 A CN117229669 A CN 117229669A
- Authority
- CN
- China
- Prior art keywords
- led curing
- cationic composition
- composition
- curing cationic
- led
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 54
- 125000002091 cationic group Chemical group 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000004593 Epoxy Substances 0.000 claims abstract description 33
- 150000001875 compounds Chemical class 0.000 claims abstract description 25
- 125000002723 alicyclic group Chemical group 0.000 claims abstract description 14
- 239000003085 diluting agent Substances 0.000 claims abstract description 12
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 239000002518 antifoaming agent Substances 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 claims description 12
- -1 glycidyl ester Chemical class 0.000 claims description 12
- 239000003999 initiator Substances 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000007639 printing Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 6
- 125000005520 diaryliodonium group Chemical group 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000049 pigment Substances 0.000 claims description 6
- 229920000570 polyether Polymers 0.000 claims description 6
- 125000005409 triarylsulfonium group Chemical group 0.000 claims description 6
- 239000013530 defoamer Substances 0.000 claims description 5
- 239000002270 dispersing agent Substances 0.000 claims description 5
- 125000003566 oxetanyl group Chemical group 0.000 claims description 5
- 239000012954 diazonium Substances 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- AHHWIHXENZJRFG-UHFFFAOYSA-N oxetane Chemical compound C1COC1 AHHWIHXENZJRFG-UHFFFAOYSA-N 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000009736 wetting Methods 0.000 claims description 4
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims description 3
- GYZLOYUZLJXAJU-UHFFFAOYSA-N diglycidyl ether Chemical compound C1OC1COCC1CO1 GYZLOYUZLJXAJU-UHFFFAOYSA-N 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000005286 illumination Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims 2
- 229940125773 compound 10 Drugs 0.000 claims 1
- ZLVXBBHTMQJRSX-VMGNSXQWSA-N jdtic Chemical compound C1([C@]2(C)CCN(C[C@@H]2C)C[C@H](C(C)C)NC(=O)[C@@H]2NCC3=CC(O)=CC=C3C2)=CC=CC(O)=C1 ZLVXBBHTMQJRSX-VMGNSXQWSA-N 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 12
- 238000000576 coating method Methods 0.000 abstract description 12
- 239000000853 adhesive Substances 0.000 abstract description 4
- 230000001070 adhesive effect Effects 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 4
- 230000005764 inhibitory process Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000012298 atmosphere Substances 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000001723 curing Methods 0.000 description 33
- 230000000052 comparative effect Effects 0.000 description 13
- ZYGHJZDHTFUPRJ-UHFFFAOYSA-N coumarin Chemical compound C1=CC=C2OC(=O)C=CC2=C1 ZYGHJZDHTFUPRJ-UHFFFAOYSA-N 0.000 description 10
- 239000000976 ink Substances 0.000 description 10
- 230000005281 excited state Effects 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000010963 304 stainless steel Substances 0.000 description 5
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 5
- 229960000956 coumarin Drugs 0.000 description 5
- 235000001671 coumarin Nutrition 0.000 description 5
- 230000005283 ground state Effects 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- YRHRIQCWCFGUEQ-UHFFFAOYSA-N thioxanthen-9-one Chemical class C1=CC=C2C(=O)C3=CC=CC=C3SC2=C1 YRHRIQCWCFGUEQ-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 150000001450 anions Chemical group 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000003623 enhancer Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000007641 inkjet printing Methods 0.000 description 2
- JUHDUIDUEUEQND-UHFFFAOYSA-N methylium Chemical compound [CH3+] JUHDUIDUEUEQND-UHFFFAOYSA-N 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 230000027756 respiratory electron transport chain Effects 0.000 description 2
- 238000007151 ring opening polymerisation reaction Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 239000004606 Fillers/Extenders Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000001023 inorganic pigment Substances 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000000016 photochemical curing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Abstract
The invention discloses a UV-LED curing cationic composition and a preparation method thereof, wherein the composition comprises the following components in percentage by weight based on 100% of the total mass of the composition: 20-80% of alicyclic epoxy compound, 10-70% of reactive diluent, 1-8% of photoinitiator, 0.1-2% of sensitizer, 10-30% of color paste and 2-5% of auxiliary agent. The UV-LED curing cationic composition has the beneficial effects that the UV-LED curing cationic composition is easier to surface dry in an air atmosphere due to the anaerobic polymerization inhibition effect in the curing process, has better adhesive force and better chemical resistance, effectively overcomes the defect of free radicals, is more suitable for curing low-viscosity thin-coating LEDs, has small curing shrinkage, is favorable for improving the adhesive force, and is suitable for metal substrates difficult to attach.
Description
Technical Field
The invention relates to the technical field of photo-curing materials, in particular to a UV-LED curing cationic composition and a preparation method thereof.
Background
Compared with the traditional printing mode, the ink-jet printing technology is free from material limitation, plate making is not needed, the limitation of printing quantity is avoided, the flexibility is strong, the printing link is simplified, and the ink-jet printing technology has outstanding application advantages in the field of package printing. The stainless steel packaging material has the advantages of good corrosion resistance, strong heat resistance, strong acid and alkali resistance, sanitation and health, is widely applied to the industries of foods, home furnishings and medicines, and can be applied in more fields along with the increasing requirements of people on the packaging quality. Therefore, there is a need to develop UV inkjet inks for use on stainless steel materials and having excellent properties.
The existing free radical system UV ink-jet ink is widely applied, but has difficult surface drying and large curing shrinkage for curing low-viscosity thin-coating LED due to oxygen polymerization inhibition, and has poor adhesive force on a plurality of base materials, such as metal base materials, therefore, a UV-LED curing cationic composition and a preparation method thereof are required to be designed.
Disclosure of Invention
The invention aims to solve the problems, and designs a UV-LED curing cationic composition and a preparation method thereof.
The technical scheme of the invention for achieving the purpose is that the UV-LED curing cationic composition and the preparation method thereof are characterized in that the composition comprises the following components in percentage by weight, based on 100% of the total mass of the composition:
20 to 80 percent of alicyclic epoxy compound
10 to 70 percent of active diluent
1-8% of photoinitiator
0.1 to 2 percent of sense enhancing agent
Color paste 10% -30%
2-5% of auxiliary agent.
As a further description of the present technical solution, the cycloaliphatic epoxy compound is selected from one or more of TTA21, TTA26, TTA20, TTA22, TTA28, TTA800 of new materials science, ltd, jiangsu taier, most preferably one or more of cycloaliphatic epoxy compounds having a viscosity of less than 30mpa·s (25 ℃).
As a further description of the present technical solution, the reactive diluent is one or more of glycidyl ether type epoxy, glycidyl ester type epoxy, oxetane structure epoxy, vinyl ether, most preferably one or more of mono-functional, multi-functional oxetane structure epoxy.
As a further description of this embodiment, the photoinitiator is one or more of an aryldiazonium salt, a diaryliodonium salt, a triarylsulfonium salt, and an arylferrocenium salt, and most preferably the initiator anion moiety is one or more of PF6-, sbF6-, BF4, B (C6F 5) 4-.
As a further description of this embodiment, the photoinitiator is one or more of an aryldiazonium salt, a diaryliodonium salt, a triarylsulfonium salt, and an arylferrocenium salt, and most preferably the initiator anion moiety is one or more of PF6-, sbF6-, BF4, B (C6F 5) 4-.
As further description of the technical scheme, the sensitizer is one or more of anthracene, coumarin and thioxanthone compounds, and most preferred sensitizer is one or more of anthracene, coumarin and thioxanthone enhancers which can be excited by light radiation in the wave band of 350-420 nm.
As further description of the technical scheme, the color paste is self-made cationic color paste and comprises 30-70% of alicyclic epoxy compound, 10-70% of oxetane epoxy, 10-50% of pigment, 1-10% of wetting dispersant and 0.1-0.5% of defoamer. Stirring, dispersing and grinding the components at room temperature and normal pressure until the maximum diameter of the solid powder is less than 1 micron.
As a further description of the technical scheme, the auxiliary agent comprises a leveling agent and a defoaming agent, wherein the types commonly used in the field can be adopted, and the most preferred leveling agent is one or more of BYK373, BYK315, BYK325, BYK331, BYK333, BYK310, BYK307 and BYK300, and the defoaming agent is one or more of polyether defoaming agent, organosilicon defoaming agent and polyether modified organosilicon defoaming agent.
A method of preparing a UV-LED curing cationic composition comprising the steps of:
step one: mixing the alicyclic epoxy compound, the reactive diluent, the initiator, the inductance increasing agent and the auxiliary agent in a light-proof or yellow light environment at room temperature and normal pressure, and stirring until the solid compound is completely dissolved;
step two: and (3) filtering the product obtained in the step (A), and obtaining the UV-LED curing cationic composition which is gloss oil and can be used in ink jet, and forming a curing film through spraying the gloss oil onto a material and curing by illumination, so that a good protection effect is achieved.
As further description of the technical scheme, the UV-LED curing cationic composition further comprises color paste, based on the second step, the color paste is added into the gloss oil obtained in the second step, and the gloss oil is stirred, dispersed at high speed and filtered to obtain the UV-LED curing cationic composition ink which can be used for ink jet and is colored in a mode of being sprayed on the surface of a printing material without an intermediate medium.
The ultraviolet-light-emitting diode (UV-LED) curing cationic composition has the beneficial effects that the energy is absorbed by the sensitizer under the radiation of an LED light source, the excited sensitizer molecules are complexed with the ground-state photoinitiator molecules to form an excited-state compound, internal electron transfer occurs to the excited-state compound, the sensitizer molecules are transited back to the ground state, the photoinitiator molecules reach the excited state, so that the decomposition generates a carbon cation active center, epoxy resin and a monomer are initiated to carry out ring-opening polymerization, and a curing film is formed by crosslinking.
Detailed Description
Firstly, the design of the invention is initially described, the existing free radical system UV ink-jet ink is widely applied, but because of oxygen polymerization inhibition, the ultraviolet curing cationic composition is difficult to dry particularly for low-viscosity thin-coating LED curing, has large curing shrinkage and has poor adhesion on a plurality of substrates, such as metal substrates, and therefore, the invention designs a UV-LED curing cationic composition and a preparation method thereof.
The invention will be described in detail below, a UV-LED curing cationic composition and a method for preparing the same, the composition comprising, based on 100% of the total mass of the composition, the following composition in weight percent:
20 to 80 percent of alicyclic epoxy compound
10 to 70 percent of active diluent
1-8% of photoinitiator
0.1 to 2 percent of sense enhancing agent
Color paste 10% -30%
2-5% of auxiliary agent.
Wherein the alicyclic epoxy compound is selected from one or more of TTA21, TTA26, TTA20, TTA22, TTA28 and TTA800 of Jiangsu Taier New Material technology Co., ltd, and most preferably one or more of alicyclic epoxy compounds with viscosity of less than 30 mPa.s (25 ℃).
The reactive diluent is one or more of glycidyl ether type epoxy, glycidyl ester type epoxy, oxetane structure epoxy and vinyl ether, and most preferably one or more of monofunctional and polyfunctional oxetane structure epoxy.
The photoinitiator is one or more of aryl diazonium salt, diaryl iodonium salt, triarylsulfonium salt and aryl ferrocenium salt, and most preferably the anionic part of the initiator is one or more of PF6-, sbF6-, BF4 and B (C6F 5) 4-.
The photoinitiator is one or more of aryl diazonium salt, diaryl iodonium salt, triarylsulfonium salt and aryl ferrocenium salt, and most preferably the anionic part of the initiator is one or more of PF6-, sbF6-, BF4 and B (C6F 5) 4-.
The sensitizer is one or more of anthracene, coumarin and thioxanthone compounds, and most preferably one or more of anthracene, coumarin and thioxanthone enhancers which can be excited by light radiation in the wave band of 350-420 nm.
The color paste is self-made cationic color paste, and comprises 30-70% of alicyclic epoxy compound, 10-70% of oxetane epoxy, 10-50% of pigment, 1-10% of wetting dispersant and 0.1-0.5% of defoamer. Stirring, dispersing and grinding the components at room temperature and normal pressure until the maximum diameter of the solid powder is less than 1 micron.
The auxiliary agent comprises a leveling agent and a defoaming agent, wherein the leveling agent can be one or more of BYK373, BYK315, BYK325, BYK331, BYK333, BYK310, BYK307 and BYK300 which are most preferred in the prior art, and the defoaming agent is one or more of polyether defoaming agent, organosilicon defoaming agent and polyether modified organosilicon defoaming agent.
The following describes in detail the preparation of a UV-LED curable cationic composition, a method for preparing a UV-LED curable cationic composition comprising the steps of:
step one: mixing the alicyclic epoxy compound, the reactive diluent, the initiator, the inductance increasing agent and the auxiliary agent in a light-proof or yellow light environment at room temperature and normal pressure, and stirring until the solid compound is completely dissolved;
step two: and (3) filtering the product obtained in the step (A), and obtaining the UV-LED curing cationic composition which is gloss oil and can be used in ink jet, and forming a curing film through spraying the gloss oil onto a material and curing by illumination, so that a good protection effect is achieved.
The UV-LED curing cationic composition further comprises color paste, based on the second step, the color paste is added into the gloss oil obtained in the second step, stirring is carried out, high-speed dispersion is carried out, filtering is carried out, and the UV-LED curing cationic composition ink can be used for ink jet and is colored in a mode of being sprayed onto the surface of a printing material, and an intermediate medium is not needed.
The invention is further illustrated below with reference to examples.
The following examples and comparative examples are not intended to be limiting with respect to the equipment and conditions used in the present invention, and unless otherwise indicated, all the technical means used in the examples are conventional means known to those skilled in the art.
The sources of cycloaliphatic epoxy compounds and diluents used in the examples and comparative examples are shown below in Table 1:
the sources of photoinitiators and extenders used for the examples and comparative examples are as follows, table 2:
the photoinitiator, coumarin and anthracene type sensitizer are all from Changzhou powerful electronic new material Co., ltd; thioxanthones are available from Zhejiang Sail New Material Co.
The defoamer, the leveling agent and the dispersing agent are all selected from Pick in Germany, and the pigment is selected from inorganic pigment or organic pigment, which are all conventional commercial products in the field.
Examples 1 to 9
The cationic compositions of examples 1 to 9 were formulated with the mass percent compositions shown in table 3 below.
| Examples | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| TTA21 | / | / | / | 20 | / | / | 20 | 10 | |
| TTA22 | 50 | / | / | / | / | / | / | / | |
| TTA28 | / | 60 | 60 | 40 | 40 | 50 | 20 | 30 | 30 |
| TTA800 | / | / | / | / | / | 10 | 30 | 10 | 15.6 |
| TR-TCM201 | 20 | / | 10 | 30 | 10 | 10 | 20 | 10 | 20 |
| TR-TCM101 | 10 | 20 | 10 | / | 10 | 10 | 10 | 10 | / |
| XY-692 | / | / | / | 10 | / | / | / | ||
| TR-PAG20101 | / | / | / | / | / | / | / | 4 | 8 |
| TR-PAG30408 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | / | / |
| TR-PSS306 | / | / | / | / | / | / | / | 0.6 | 1 |
| ITX | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | / | / |
| Black color paste | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 |
| BYK333 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| BYK055 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
Comparative examples 1 to 3
Cationic compositions of comparative examples 1 to 3 were formulated with the mass percent compositions shown in Table 4 below
The preparation method of the cationic composition in the above examples and comparative examples is the same, and includes the following steps
Step one: and under the conditions of light shielding or yellow light and normal pressure at room temperature, mixing the alicyclic epoxy compound, the reactive diluent, the initiator, the sense enhancing agent and the auxiliary agent, stirring until the solid compound is completely dissolved, and filtering the product to obtain the composition gloss oil.
Step two: if the pigment is needed to be added, the gloss oil obtained in the step one is added with color paste, stirred, dispersed at high speed and filtered to obtain the UV-LED curing cationic composition ink.
The cationic compositions prepared in the above examples and comparative examples were subjected to cure speed, adhesion, and resistance to chemical changes.
Curing speed
The testing method comprises the following steps: the coating is coated on 304 stainless steel by a 5um bar roller, exposed under a curing machine with a 395nm LED light source, and the minimum energy required by the surface drying of the coating is compared.
Evaluation criteria: the lower the energy required for the coating to set up, the faster the cure speed.
Adhesion force
The testing method comprises the following steps: the glass is rolled on 304 stainless steel by a 5um bar roller, exposed under a curing machine with 395nm LED light source (5000 mJ/cm < 2 >), completely cured, left at room temperature for 1 day and 7 days, and subjected to a cross-cut test according to the specification of GB/T9286-2021.
Evaluation criteria: judging the adhesion level according to the surface falling condition, wherein the level 0 is that the scribing edge is smooth, and no marks fall off at the scribing edge and the intersection point; the level 1 is that the small piece falls off at the cross point of the scribing line, and the total falling area cannot be obviously more than 5%; the level 2 is that the edges of the scribing lines and the crossing points are provided with small pieces to fall off, and the total falling-off area is between 5 and 15 percent; the level 3 is that the edges and the intersections of the scribing lines are provided with flaking falling off, and the falling off area is between 15 and 35 percent; the level 4 is that the edges and the intersections of the scribing lines are provided with flaking falling off, and the falling off area is between 35 and 65 percent; grade 5 is a degree of shedding exceeding grade 4.
Resistance to chemical transformation
The testing method comprises the following steps: the coating is coated on 304 stainless steel by a 5um bar roller, the coating is exposed under a curing machine with 395nm LED light source (5000 mJ/cm < 2 >), after the coating is completely cured, the coating is placed for 1 day at room temperature, and a 95% ethanol-resistant wiping test is carried out according to the specification of GB/T23989-2009, and a solvent-resistant wiping instrument is loaded with 1kg and has the rotating speed of 60rpm.
Evaluation criteria: the number of wiping times is 100, the coating is qualified without fading and bottomless, and is represented by OK, otherwise, the coating is unqualified, and is represented by NG.
The test results of the examples and comparative examples were obtained according to the above test methods and determination criteria as follows.
Examples 2 and 3 have better adhesion of the cured product to the 304 stainless steel material than the comparative examples, and from the above results, it is clear that TTA28 plays a key role in the cationic composition described above, contributing to improving adhesion of the cured product to the 304 stainless steel substrate, and that examples 5 and 6 have faster curing speed and both adhesion and chemical resistance than the comparative examples, with example 6 having the best overall performance.
| Comparative example 1 | Comparative example 2 | Comparative example 2 | |
| Energy of surface drying (mJ/cm) 2 ) | 3200 | 1500 | 1800 |
| Adhesive force (1 day) | 5 | 5 | 5 |
| Resistance to chemical transformation | OK | OK | OK |
According to the UV-LED curing cationic composition, under the radiation of an LED light source, the energy is absorbed by the inductive agent, the excited inductive agent molecules are complexed with the photoinitiator molecules in a ground state to form an excited state compound, internal electron transfer occurs in the excited state compound, the inductive agent molecules are transited back to the ground state, the photoinitiator molecules reach the excited state, so that the decomposition generates a carbon cation active center, epoxy resin and a monomer are initiated to carry out ring-opening polymerization, and a curing film is formed by crosslinking.
The above technical solution only represents the preferred technical solution of the present invention, and some changes that may be made by those skilled in the art to some parts of the technical solution represent the principles of the present invention, and the technical solution falls within the scope of the present invention.
Claims (10)
1. A UV-LED curing cationic composition, characterized in that it comprises the following composition in weight percentage, based on 100% of the total mass of the composition:
20 to 80 percent of alicyclic epoxy compound
10 to 70 percent of active diluent
1-8% of photoinitiator
0.1 to 2 percent of sense enhancing agent
Color paste 10% -30%
2-5% of auxiliary agent.
2. A UV-LED curing cationic composition according to claim 1, wherein said cycloaliphatic epoxy compound is selected from one or more of TTA21, TTA26, TTA20, TTA22, TTA28, TTA800, new materials science and technology limited.
3. The UV-LED curing cationic composition of claim 1, wherein the reactive diluent is one or more of a glycidyl ether type epoxy, a glycidyl ester type epoxy, an oxetane structure epoxy, a vinyl ether.
4. The UV-LED curing cationic composition of claim 1, wherein the photoinitiator is one or more of aryl diazonium salts, diaryl iodonium salts, triarylsulfonium salts, and aryl ferrocenium salts.
5. The UV-LED curing cationic composition of claim 1, wherein the photoinitiator is one or more of aryl diazonium salts, diaryl iodonium salts, triarylsulfonium salts, and aryl ferrocenium salts.
6. The UV-LED curing cationic composition of claim 1, wherein said sensate is one or more of anthracene, coumarin, thioxanthone compounds.
7. The UV-LED curing cationic composition of claim 1, wherein the color paste is a self-made cationic color paste comprising 30% -70% of alicyclic epoxy compound, 10% -70% of oxetane epoxy, 10% -50% of pigment, 1% -10% of wetting dispersant and 0.1% -0.5% of defoamer, and the alicyclic epoxy compound, oxetane epoxy, pigment, wetting dispersant and defoamer are stirred, dispersed and ground at room temperature and normal pressure until the maximum diameter of the solid powder is less than 1 micron.
8. The UV-LED curing cationic composition of claim 1, wherein the auxiliary comprises a leveling agent and an antifoaming agent, the leveling agent being one or more of BYK373, BYK315, BYK325, BYK331, BYK333, BYK310, BYK307, BYK300, the antifoaming agent being one or more of polyether antifoaming agent, silicone antifoaming agent, polyether modified silicone antifoaming agent.
9. A method of preparing a UV-LED curing cationic composition comprising the steps of:
step one: mixing the alicyclic epoxy compound, the reactive diluent, the initiator, the inductance increasing agent and the auxiliary agent in a light-proof or yellow light environment at room temperature and normal pressure, and stirring until the solid compound is completely dissolved;
step two: and (3) filtering the product obtained in the step (A), and obtaining the UV-LED curing cationic composition which is gloss oil and can be used in ink jet, and forming a curing film through spraying the gloss oil onto a material and curing by illumination, so that a good protection effect is achieved.
10. The method for preparing the UV-LED curing cationic composition according to claim 9, wherein the UV-LED curing cationic composition further comprises color paste, the color paste is added into the gloss oil obtained in the second step, stirring, dispersing at high speed and filtering are carried out, and the UV-LED curing cationic composition ink is obtained, can be used for inkjet, is colored by spraying on the surface of a printing material, and does not need an intermediate medium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311391856.1A CN117229669A (en) | 2023-10-25 | 2023-10-25 | UV-LED curing cationic composition and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311391856.1A CN117229669A (en) | 2023-10-25 | 2023-10-25 | UV-LED curing cationic composition and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117229669A true CN117229669A (en) | 2023-12-15 |
Family
ID=89089484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311391856.1A Pending CN117229669A (en) | 2023-10-25 | 2023-10-25 | UV-LED curing cationic composition and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117229669A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144140A (en) * | 2019-06-23 | 2019-08-20 | 珠海君奥新材料科技有限公司 | Suitable for the cured mixing photocuring ink jet ink composition of LED light and mixing machine |
| CN116009356A (en) * | 2022-12-15 | 2023-04-25 | 珠海天威新材料股份有限公司 | Ultraviolet radiation curing cationic composition, preparation method thereof and digital ink-jet printing method |
-
2023
- 2023-10-25 CN CN202311391856.1A patent/CN117229669A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110144140A (en) * | 2019-06-23 | 2019-08-20 | 珠海君奥新材料科技有限公司 | Suitable for the cured mixing photocuring ink jet ink composition of LED light and mixing machine |
| CN116009356A (en) * | 2022-12-15 | 2023-04-25 | 珠海天威新材料股份有限公司 | Ultraviolet radiation curing cationic composition, preparation method thereof and digital ink-jet printing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107286740B (en) | UV-LED offset printing ink and preparation method thereof | |
| CN107216715B (en) | UV-LED ink-jet character printing ink and preparation method thereof | |
| EP2041230B1 (en) | A printing ink | |
| US20070112094A1 (en) | Printing ink | |
| CN108359312B (en) | High-temperature-resistant UV-LED ink-jet printing solder resist ink and preparation method and application thereof | |
| CN107778979B (en) | PET and PI film universal insulating matte black electronic gravure ink and preparation method thereof | |
| CN101386765B (en) | Epoxy priming lacquer and method of use thereof | |
| CN111607289B (en) | Ultraviolet curing ink-jet printing ink with double curing mechanisms and preparation method thereof | |
| CN108219589B (en) | UV-LED ink-jet printing solder resist ink and preparation method and application thereof | |
| CN107207888A (en) | Light-cured type ink jet printing white ink composition | |
| CN109852143B (en) | UV-LED ink-jet printing black character ink and preparation method thereof | |
| CN112126356B (en) | Modified rosin resin for ultraviolet curing ink and preparation method thereof | |
| CN116009356A (en) | Ultraviolet radiation curing cationic composition, preparation method thereof and digital ink-jet printing method | |
| CN111349359A (en) | Ultraviolet-cured silk-screen printing metal ink and preparation method thereof | |
| CN113072837A (en) | UV-LED two-piece can high-flexibility offset printing ink and preparation method thereof | |
| CN102898878A (en) | Low-cost high-adhesive-force electron beam radiation curing paint and preparation method thereof | |
| CN112341866B (en) | Photosensitive spray-type conductive ink and preparation method and application thereof | |
| CN111892858B (en) | Lithographic offset printing ink fountain UV gloss oil capable of realizing local laser transfer and lithographic offset printing method | |
| CN117229669A (en) | UV-LED curing cationic composition and preparation method thereof | |
| CN103045007B (en) | LED-UV (Light Emitting Diode-Ultraviolet) silk-screen printing ink composition and preparation method of ink composition | |
| CN106590174B (en) | Degradable gravure UV anti-counterfeiting ink and application thereof to gold and silver card paper | |
| CN117363162A (en) | Low-viscosity rapid UV-LED curing cationic composition and preparation method thereof | |
| CN108641478A (en) | A kind of rapid draing LED light UV curing ink-jet and preparation method thereof | |
| CN111909118B (en) | Oxetane compound, photocurable composition, ink and use thereof | |
| CN114479550A (en) | Photocuring gold-printable glass printing ink and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |