Photocuring anti-doodling ink, and preparation method and anti-doodling coating layer thereof

Abstract

The invention provides a photocuring anti-doodling ink. The photocuring anti-doodling ink comprises, by weight, 1-10 parts of amide wax, 10-60 parts of an oligomer, 3-10 parts of a photoinitiator, 0.5-10 parts of an assistant, 0-40 parts of an active monomer, 0-20 parts of a filler and 0-40 parts of a pigment, wherein the molecules of the oligomer and the active monomer respectively contain an unsaturated double bond. A modified fluorine-containing or silicon-containing material is replaced with the inexpensive, easily-available and highly-safe amide wax, so a coating layer formed by UV radiation curing has a low surface tension and an excellent anti-doodling performance, and the ink has the advantages of simple and easily available raw materials, economical property, high efficiency, safety and environmental protection. The invention also provides a preparation method and the anti-doodling coating layer of the photocuring anti-doodling ink.

Description

technical field

[0001] The invention relates to the technical field of material chemistry, in particular to a photocurable anti-graffiti ink, a preparation method thereof, and an anti-graffiti coating. Background technique

[0002] Photocuring technology mainly includes ultraviolet light curing technology, which uses ultraviolet light (UV) as the energy provider required for material curing, firstly excites the photoinitiator in the material system, and then makes the photoactive oligomers and monomers in the system It is a technology that rapidly cross-links and polymerizes polymers to form polymers in an extremely short period of time, thereby transforming from a liquid coating to a solid coating. Since the commercial application of Bayer Company in the United States in the 1960s, UV curing technology has been widely used in the fields of coatings, inks, rapid prototyping, electronic products, and adhesives by virtue of its high efficiency, environmental protection, energy...

Examples

Embodiment 1

[0032] 1) Components:

[0033] Oligomer

Epoxy acrylate (liquid) 20g

Polyester acrylate (liquid) 15g

active monomer

Isobornyl Acrylate (Liquid) 20g

Photoinitiator

1-Hydroxycyclohexyl phenyl ketone 3g

Trimethylbenzoyl diphenylphosphine oxide 2g

Amide wax

Erucamide 5g

Auxiliary

(Defoamer, liquid) 1g

(leveling agent, liquid) 0.5g

pigment

Titanium dioxide 25g

filler

Calcium carbonate 8.5g

[0034] 2) Preparation method: under normal temperature and pressure conditions, in a container, after fully stirring and mixing the oligomers, active monomers and additives in the above components, slowly add them under stirring at 100-200 rpm After feeding the remaining raw materials, disperse for 30 minutes at a speed of 1000-1500 rpm until all materials are fully mixed, dissolved and evenly dispersed. Use a three-roll machine to grind the dispersed slurry twice to a fineness of ...

Embodiment 2

[0037] 1) Components

[0038]

[0039]

[0040]2) Preparation method: under normal temperature and pressure conditions, in a container, after fully stirring and mixing the oligomers, active monomers and additives in the above components, slowly add the remaining Raw materials, after feeding, disperse for 30 minutes at a speed of 1000-1500 rpm until all materials are fully mixed, dissolved and dispersed evenly. Grinding the dispersed slurry four times with a three-roll machine until the fineness is less than 5 microns, so as to obtain a UV curable black ink.

[0041] The test found that the ink can be cured rapidly under UV, and can form a black ink coating with low surface tension, and has remarkable anti-graffiti performance.

[0042] In this embodiment, by adding different photoinitiators, the ink can trigger free radical reactions for different wavelengths of ultraviolet light to cause cross-linking and curing, so that due to the influence of the penetration depth of...

Embodiment 3

[0044] 1) Components

[0045]

[0046]

[0047] 2) Preparation method: under normal temperature and pressure conditions, in a container, after fully stirring and mixing the oligomers, active monomers and additives except the thixotropic agent in the above components, at 100-200 rpm Slowly add the remaining raw materials at the speed of 1000-1500 rpm for 30 minutes until all the materials are fully mixed, dissolved and dispersed evenly after feeding all the raw materials. Grinding the dispersed slurry four times with a three-roll machine until the fineness is less than 5 microns to obtain a UV curable low surface tension anti-graffiti red ink.

technical field

[0001] The invention relates to the technical field of material chemistry, in particular to a photocurable anti-graffiti ink, a preparation method thereof, and an anti-graffiti coating. Background technique

[0002] Photocuring technology mainly includes ultraviolet light curing technology, which uses ultraviolet light (UV) as the energy provider required for material curing, firstly excites the photoinitiator in the material system, and then makes the photoactive oligomers and monomers in the system It is a technology that rapidly cross-links and polymerizes polymers to form polymers in an extremely short period of time, thereby transforming from a liquid coating to a solid coating. Since the commercial application of Bayer Company in the United States in the 1960s, UV curing technology has been widely used in the fields of coatings, inks, rapid prototyping, electronic products, and adhesives by virtue of its high efficiency, environmental protection, energy...

Examples

Embodiment 1

[0032] 1) Components:

[0033] Oligomer

Epoxy acrylate (liquid) 20g

Polyester acrylate (liquid) 15g

active monomer

Isobornyl Acrylate (Liquid) 20g

Photoinitiator

1-Hydroxycyclohexyl phenyl ketone 3g

Trimethylbenzoyl diphenylphosphine oxide 2g

Amide wax

Erucamide 5g

Auxiliary

(Defoamer, liquid) 1g

(leveling agent, liquid) 0.5g

pigment

Titanium dioxide 25g

filler

Calcium carbonate 8.5g

[0034] 2) Preparation method: under normal temperature and pressure conditions, in a container, after fully stirring and mixing the oligomers, active monomers and additives in the above components, slowly add them under stirring at 100-200 rpm After feeding the remaining raw materials, disperse for 30 minutes at a speed of 1000-1500 rpm until all materials are fully mixed, dissolved and evenly dispersed. Use a three-roll machine to grind the dispersed slurry twice to a fineness of ...

Embodiment 2

[0037] 1) Components

[0038]

[0039]

[0040]2) Preparation method: under normal temperature and pressure conditions, in a container, after fully stirring and mixing the oligomers, active monomers and additives in the above components, slowly add the remaining Raw materials, after feeding, disperse for 30 minutes at a speed of 1000-1500 rpm until all materials are fully mixed, dissolved and dispersed evenly. Grinding the dispersed slurry four times with a three-roll machine until the fineness is less than 5 microns, so as to obtain a UV curable black ink.

[0041] The test found that the ink can be cured rapidly under UV, and can form a black ink coating with low surface tension, and has remarkable anti-graffiti performance.

[0042] In this embodiment, by adding different photoinitiators, the ink can trigger free radical reactions for different wavelengths of ultraviolet light to cause cross-linking and curing, so that due to the influence of the penetration depth of...

Embodiment 3

[0044] 1) Components

[0045]

[0046]

[0047] 2) Preparation method: under normal temperature and pressure conditions, in a container, after fully stirring and mixing the oligomers, active monomers and additives except the thixotropic agent in the above components, at 100-200 rpm Slowly add the remaining raw materials at the speed of 1000-1500 rpm for 30 minutes until all the materials are fully mixed, dissolved and dispersed evenly after feeding all the raw materials. Grinding the dispersed slurry four times with a three-roll machine until the fineness is less than 5 microns to obtain a UV curable low surface tension anti-graffiti red ink.

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