CN114752297A - Special light sensitive coating and preparation method thereof - Google Patents
Special light sensitive coating and preparation method thereof Download PDFInfo
- Publication number
- CN114752297A CN114752297A CN202210411659.0A CN202210411659A CN114752297A CN 114752297 A CN114752297 A CN 114752297A CN 202210411659 A CN202210411659 A CN 202210411659A CN 114752297 A CN114752297 A CN 114752297A
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- Prior art keywords
- water
- coating
- inductive
- light
- acrylic resin
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/29—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for multicolour effects
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
A light sensitive coating comprises 25-40% of polyurethane acrylate prepolymer, 5-10% of water-absorbing acrylic resin microcapsules, 1-5% of reactive dispersant, 10-20% of photosensitive powder, 1-10% of photoinitiator and the balance of water; the dispersant is a reactive dispersant which is acrylamide sulfonate; the water-absorbing acrylic resin microcapsule has a core-shell structure, wherein the shell is made of high polymer resin, and the core is made of water-absorbing acrylic resin.
Description
Technical Field
The invention relates to a light-sensitive coating and a preparation method thereof.
Background
The light-sensitive paint generally refers to a paint which does not change color and fall off under the irradiation of a fluorescent lamp or a strong light at normal temperature, can keep certain physical and mechanical properties and presents another color after being irradiated by sunlight. The coating can be applied to the field of cosmetics, special performance is given to the packing material, and the coating can attract attention of people when being used in some special products, so that the degree of the products receiving the silky drinks is improved. Meanwhile, through the adjustment of the formula of the coating, the light-sensitive coating has a plurality of good properties such as weather resistance, so that the product can be used in a wider natural area.
Due to the requirement of environmental protection and the concept of green, most of the existing light-sensitive coatings are aqueous systems, components such as resin, light-sensitive materials and the like need to be dispersed in water, and the light-sensitive materials are easy to agglomerate after the dispersion systems are dried, so that the light-sensitive color-changing performance is influenced. Meanwhile, the reversibility of the light-sensitive coating is often low in efficiency, and the reversibility is low in efficiency due to lack of sufficient oxidation, so that the reversible color-changing performance of the light-sensitive coating needs to be improved.
Disclosure of Invention
The invention aims to provide a special light sensitive coating which can improve the reversible color changing performance of the light sensitive coating.
The invention is realized by the following technical scheme:
a light sensitive coating comprises 25-40% of polyurethane acrylate prepolymer, 5-10% of water-absorbing acrylic resin microcapsule, 1-5% of reactive dispersant, 10-20% of photosensitive powder, 1-10% of photoinitiator and the balance of water;
the method is characterized in that: the dispersant is a reactive dispersant which is acrylamide sulfonate;
the water-absorbing acrylic resin microcapsule has a core-shell structure, wherein the shell is made of high polymer resin, and the core is made of water-absorbing acrylic resin.
Furthermore, the light-sensitive coating has an auxiliary agent toner with the content of 5-10%.
Further, the toner is an organic pigment or an inorganic pigment.
Further, the initiator is a water-soluble initiator.
Further, the photosensitive powder is a furanone pigment or a spiropyran pigment.
Further, the preparation process of the water-absorbing acrylic resin microcapsule comprises the following steps:
putting a certain amount of water-absorbent resin, cyclohexane and petroleum ether into a three-neck flask;
weighing butyl acrylate prepolymer, adding the butyl acrylate prepolymer into an ethyl acetate solvent, and sequentially carrying out ultrasonic oscillation dispersion and water bath heating treatment to obtain a wall material solution;
adding the wall material solution into the three-neck flask, reacting for 50 minutes at 90 ℃, and then reducing the reaction temperature to 70 ℃;
slowly adding a mixture of butyl acrylate containing azobisisobutyronitrile and acrylic acid, continuously reacting for a period of time at 70 ℃, cooling the device, and collecting a sample.
The invention also aims to provide a preparation method of the light-sensitive coating, which comprises the following steps:
(1) adding the required parts of water solvent, resin, prepolymer, microcapsule and reactive dispersant into a container for high-speed dispersion;
(2) dispersing and mixing a reaction dispersing agent, a photosensitive toner and a water solvent to obtain a dispersion liquid;
(3) Adding a pigment to carry out color matching on the product to form a finished coating product;
(4) and packaging the finished coating and the photoinitiator separately, and mixing before use.
The scheme of the invention can realize the following technical effects:
1. after the photosensitive coating disclosed by the invention is formed into a film, the water absorption performance of the water-absorbent acrylic resin microcapsule can be improved, so that the reversible color change effect of photosensitive powder is improved.
2. The water-absorbing acrylic resin microcapsule of the light-sensitive coating slows down the water absorption saturation, and improves the effective reversible color-changing period of the coating; the water absorption speed can be changed by adjusting the proportion of the core shell of the microcapsule, and the controllability is improved.
3. The photosensitive coating disclosed by the invention uses the reactive dispersant, and the reactive dispersant can participate in a curing reaction, so that photosensitive powder is uniformly dispersed, and the photochromic performance is improved.
4. The light-sensitive coating disclosed by the invention does not use an industrial solvent or a large amount of diluted monomers, and is excellent in environmental protection performance.
Detailed Description
In the examples, the raw materials are all commercially available
Example 1
A special light sensitive coating comprises 30% of polyurethane acrylate prepolymer, 5% of water-absorbing acrylic resin microcapsule, 1% of reactive dispersant, 20% of photosensitive powder, 1% -10% of photoinitiator and the balance of water;
The method is characterized in that: the dispersant is a reactive dispersant which is acrylamide sulfonate;
the water-absorbing acrylic resin microcapsule has a core-shell structure, wherein the shell is made of high polymer resin, and the core is made of water-absorbing acrylic resin.
Further, the light-sensitive coating has an auxiliary agent toner with the content of 8%.
Further, the toner is an organic pigment or an inorganic pigment.
Further, the initiator is a water-soluble initiator.
Further, the photosensitive powder is a furanone pigment or a spiropyran pigment.
Further, the preparation process of the water-absorbing acrylic resin microcapsule comprises the following steps:
putting a certain amount of super absorbent resin, cyclohexane and petroleum ether into a three-neck flask;
weighing butyl acrylate prepolymer, adding the butyl acrylate prepolymer into an ethyl acetate solvent, and sequentially carrying out ultrasonic oscillation dispersion and water bath heating treatment to obtain a wall material solution;
adding the wall material solution into the three-neck flask, reacting for 50 minutes at 90 ℃, and then reducing the reaction temperature to 70 ℃;
slowly adding a mixture of butyl acrylate containing azobisisobutyronitrile and acrylic acid, continuously reacting for a period of time at 70 ℃, cooling the device, and collecting a sample.
The preparation method of the light-sensitive coating comprises the following steps:
(1) adding the required parts of water solvent, resin, prepolymer, microcapsule and reactive dispersant into a container for high-speed dispersion;
(2) dispersing and mixing a reaction dispersing agent, a photosensitive toner and a water solvent to obtain a dispersion liquid;
(3) adding pigment to carry out color matching on the product to form a finished coating product;
(4) and packaging the finished coating and the photoinitiator separately, and mixing before use.
The preparation process of the coating finished product comprises the following steps: coating the light sensation coating liquid composition on one surface of a PET film, drying in an oven for 5min at 80 ℃, curing the dried coating through an LED light source, and controlling the thickness of a photochromic coating layer to be 4-6 mu m to obtain a coating finished product.
Testing and evaluation
Storage stability of the light-sensitive coating: and (3) after the prepared photochromic coating is stored at room temperature in a dark place for 3-6 months, observing the storage stability of the coating, and recording the time for which the coating keeps dispersion stability and does not precipitate.
The method for testing yellowing resistance of the coating comprises the following steps: and (3) irradiating the prepared finished coating product by ultraviolet rays in an ultraviolet testing instrument for 300 hours, 500 hours and 2000 hours, and testing the yellowing degree of the finished coating product.
The test result of the paint obtained in the example 1 shows that the storage stability reaches 6 months, and the yellowing resistance time reaches 2000 h.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A light sensitive coating comprises 25-40% of polyurethane acrylate prepolymer, 5-10% of water-absorbing acrylic resin microcapsules, 1-5% of reactive dispersant, 10-20% of photosensitive powder, 1-10% of photoinitiator and the balance of water;
the method is characterized in that: the dispersant is a reactive dispersant which is acrylamide sulfonate;
the water-absorbing acrylic resin microcapsule has a core-shell structure, wherein the shell is made of high polymer resin, and the core is made of water-absorbing acrylic resin.
2. The photo-inductive paint according to claim 1, wherein the photo-inductive paint has an auxiliary toner in an amount of 5 to 10%.
3. A light-inductive paint as claimed in claim 2, wherein the toner is an organic pigment or an inorganic pigment.
4. A photo-inductive coating as claimed in claim 1, wherein the initiator is a water-soluble initiator.
5. The light-inductive paint as claimed in claim 1, wherein the photosensitive powder is a furanone-based pigment or a spiropyran-based pigment.
6. The light-inductive paint as claimed in claim 1, wherein the preparation process of the water-absorbent acrylic resin microcapsule comprises the following steps:
putting a certain amount of water-absorbent resin, cyclohexane and petroleum ether into a three-neck flask;
weighing butyl acrylate prepolymer, adding the butyl acrylate prepolymer into an ethyl acetate solvent, and sequentially carrying out ultrasonic oscillation dispersion and water bath heating treatment to obtain a wall material solution;
adding the wall material solution into the three-neck flask, reacting for 50 minutes at 90 ℃, and then reducing the reaction temperature to 70 ℃;
slowly adding a mixture of butyl acrylate containing azobisisobutyronitrile and acrylic acid, continuously reacting for a period of time at 70 ℃, cooling the device, and collecting a sample.
7. A process for preparing a photosensitive coating as claimed in any one of claims 1 to 6, which comprises:
(1) adding required amounts of water solvent, resin, prepolymer, microcapsule and reactive dispersant into a container, and dispersing at high speed;
(2) dispersing and mixing a reaction dispersing agent, a photosensitive toner and a water solvent to obtain a dispersion liquid;
(3) adding pigment to carry out color matching on the product to form a finished coating product;
(4) and packaging the finished coating and the photoinitiator separately, and mixing before use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411659.0A CN114752297B (en) | 2022-04-19 | 2022-04-19 | Special light-sensitive coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411659.0A CN114752297B (en) | 2022-04-19 | 2022-04-19 | Special light-sensitive coating and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114752297A true CN114752297A (en) | 2022-07-15 |
| CN114752297B CN114752297B (en) | 2023-06-13 |
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| CN202210411659.0A Active CN114752297B (en) | 2022-04-19 | 2022-04-19 | Special light-sensitive coating and preparation method thereof |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985531A (en) * | 2010-03-17 | 2011-03-16 | 上海宏盾防伪材料有限公司 | Photosensitive coating and preparation method thereof and photosensitive film made by utilizing same |
| WO2012075293A2 (en) * | 2010-12-01 | 2012-06-07 | Isp Investments Inc. | Hydrogel microcapsules |
| CN104927485A (en) * | 2015-06-12 | 2015-09-23 | 西安理工大学 | Water-based UV ink for ink jet printing and preparing method thereof |
| US20160145449A1 (en) * | 2013-06-26 | 2016-05-26 | Momentive Performance Materials Gmbh | Photocurable coating composition and its use |
| CN106000248A (en) * | 2016-05-30 | 2016-10-12 | 常熟理工学院 | Preparation method of controllable-expansion superwater absorbent resin microcapsules |
| WO2017186155A1 (en) * | 2016-04-29 | 2017-11-02 | 上海创始实业（集团）有限公司 | Superabsorbent thermochromic resin and preparation method therefor |
| CN107325603A (en) * | 2017-07-14 | 2017-11-07 | 张家港康得新光电材料有限公司 | A kind of aqueous photochromic coating, nail polish and ornament materials |
| CN109504195A (en) * | 2018-11-26 | 2019-03-22 | 江苏万宝瑞达高新技术有限公司 | A kind of protection layer for paint and preparation method thereof suitable for thermosensitive film |
| CN109535952A (en) * | 2018-11-22 | 2019-03-29 | 中国石油大学(北京) | A kind of ability of reverse photochromism coating and preparation method thereof |
| CN109880509A (en) * | 2019-01-29 | 2019-06-14 | 张家港康得新光电材料有限公司 | Aqueous allochroic paint and its painting membrane product |
| CN110804381A (en) * | 2019-12-03 | 2020-02-18 | 郑州鸿盛数码科技股份有限公司 | Primer liquid suitable for printing non-absorbent printing medium by using water-based pigment ink, preparation method and application |
-
2022
- 2022-04-19 CN CN202210411659.0A patent/CN114752297B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985531A (en) * | 2010-03-17 | 2011-03-16 | 上海宏盾防伪材料有限公司 | Photosensitive coating and preparation method thereof and photosensitive film made by utilizing same |
| WO2012075293A2 (en) * | 2010-12-01 | 2012-06-07 | Isp Investments Inc. | Hydrogel microcapsules |
| US20160145449A1 (en) * | 2013-06-26 | 2016-05-26 | Momentive Performance Materials Gmbh | Photocurable coating composition and its use |
| CN104927485A (en) * | 2015-06-12 | 2015-09-23 | 西安理工大学 | Water-based UV ink for ink jet printing and preparing method thereof |
| WO2017186155A1 (en) * | 2016-04-29 | 2017-11-02 | 上海创始实业（集团）有限公司 | Superabsorbent thermochromic resin and preparation method therefor |
| CN106000248A (en) * | 2016-05-30 | 2016-10-12 | 常熟理工学院 | Preparation method of controllable-expansion superwater absorbent resin microcapsules |
| CN107325603A (en) * | 2017-07-14 | 2017-11-07 | 张家港康得新光电材料有限公司 | A kind of aqueous photochromic coating, nail polish and ornament materials |
| CN109535952A (en) * | 2018-11-22 | 2019-03-29 | 中国石油大学(北京) | A kind of ability of reverse photochromism coating and preparation method thereof |
| CN109504195A (en) * | 2018-11-26 | 2019-03-22 | 江苏万宝瑞达高新技术有限公司 | A kind of protection layer for paint and preparation method thereof suitable for thermosensitive film |
| CN109880509A (en) * | 2019-01-29 | 2019-06-14 | 张家港康得新光电材料有限公司 | Aqueous allochroic paint and its painting membrane product |
| CN110804381A (en) * | 2019-12-03 | 2020-02-18 | 郑州鸿盛数码科技股份有限公司 | Primer liquid suitable for printing non-absorbent printing medium by using water-based pigment ink, preparation method and application |
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| Publication number | Publication date |
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| CN114752297B (en) | 2023-06-13 |
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