CN113004756A - PET (polyethylene terephthalate) primer for water-based UV (ultraviolet) coating as well as preparation method and application of PET primer - Google Patents
PET (polyethylene terephthalate) primer for water-based UV (ultraviolet) coating as well as preparation method and application of PET primer Download PDFInfo
- Publication number
- CN113004756A CN113004756A CN202110316215.4A CN202110316215A CN113004756A CN 113004756 A CN113004756 A CN 113004756A CN 202110316215 A CN202110316215 A CN 202110316215A CN 113004756 A CN113004756 A CN 113004756A
- Authority
- CN
- China
- Prior art keywords
- water
- coating
- pet
- primer
- aqueous
- 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
Classifications
-
- 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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
-
- 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
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- 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
- C09D5/002—Priming paints
-
- 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
- C09D7/20—Diluents or solvents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a PET (polyethylene terephthalate) primer for a water-based UV (ultraviolet) coating, and a preparation method and application thereof, and relates to the technical field of films, wherein the PET primer comprises the following raw materials in percentage by weight: 20-25% of water-based resin, 1-5% of film-forming additive, 0.01-3% of other additives and 67-78.99% of deionized water; wherein the tg point of the aqueous resin is 20-80 ℃. The formula is reasonably designed, the obtained primer is water-based, safe and environment-friendly, and the film coated with the primer coating can be well matched with a water-based UV coating for use, has good adhesive strength and meets the market demand.
Description
Technical Field
The invention relates to the technical field of films, in particular to a PET (polyethylene terephthalate) primer for a water-based UV (ultraviolet) coating, and a preparation method and application thereof.
Background
The BOPET film is a film material with excellent performance, and the excellent mechanical performance of the BOPET film enables the BOPET film to have wide application in the fields of packaging, electronics and the like. In practical use, the coating is often further coated and processed to meet the requirements of specific application scenes on the performance and appearance of the coating.
The BOPET surface is coated with various functional coatings in a wide range of applications, but the coatings coated in the prior art are mostly solvent-based coating materials, with the national requirement on environmental protection, the VOC control is more and more strict, and the VOC emission is reduced in the fields of coatings, printing ink and the like. The water-based UV coating is a good environment-friendly choice, but different from the oil-based UV coating, the water-based UV coating has higher surface tension and poorer wetting capability, the existing synthesis technology of water-based UV resin is not mature, and the problems of large curing shrinkage stress and unstable adhesive force of the water-based UV coating generally exist. The primer can improve the adhesive strength between the film and the UV coating by coating, and is widely applied, but the primer is generally suitable for oil-based UV coatings, and the primer which can be directly matched with a water-based UV coating has fewer related reports, and the development of the product is still very challenging.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides the PET primer for the water-based UV coating, and the preparation method and the application thereof.
The invention provides a PET (polyethylene terephthalate) primer for a water-based UV (ultraviolet) coating, which comprises the following raw materials in percentage by weight: 20-25% of water-based resin, 1-5% of film-forming additive, 0.01-3% of other additives and 67-78.99% of deionized water; wherein the tg point of the aqueous resin is 20-80 ℃.
In the present invention, the tg point of the aqueous resin is defined to be 20 to 80 ℃. In most cases, the film is difficult to form due to the high tg point, a film-forming aid with a higher proportion needs to be added, the film-forming aid is mostly an organic solvent, the VOC content is increased, and the tg point of the base coat is too high, which indicates that the hardness of the base coat is higher, while the surface coat is a water-based UV coating, the corrosion resistance is weak, and the problem of poor interlayer adhesion is easy to occur due to the matching of the surface coat and the hard base coat. When the tg point is too low, the paint film is soft and difficult to roll.
Preferably, the primer coating has a surface dyne value of greater than 50.
Preferably, the aqueous resin comprises at least one of an aqueous polyester resin and an aqueous polyurethane resin; preferably, the aqueous resin further includes an aqueous acrylic resin.
Preferably, the aqueous polyester resin comprises one or more of ST5870, MD1245, Z-760 and KG-0420, the aqueous polyurethane resin comprises one or more of ACO-25 and AP-301, and the aqueous acrylic resin comprises one or more of W-5030 and W-6061.
Preferably, the film forming auxiliary agent is one or more of ethylene glycol butyl ether, diethylene glycol ethyl ether, diethylene glycol butyl ether, dipropylene glycol methyl ether, diethylene glycol butyl ether and alcohol ester-12.
Preferably, the other auxiliary agent is at least one of a silicone surfactant, an acetylene glycol surfactant, and a metal oxide dispersion.
The invention also provides a preparation method of the PET primer for the water-based UV coating, which comprises the following steps:
s1, adding a proper amount of deionized water into the water-based resin, and uniformly stirring to obtain water-based resin slurry;
s2, adding the rest deionized water into the film-forming aid, and uniformly stirring to obtain film-forming aid slurry;
and S3, adding the film-forming aid sizing material and other aids into the aqueous resin slurry under the stirring state, stirring and filtering to obtain the PET primer for the aqueous UV coating.
Preferably, the temperature is controlled at 15-30 ℃ throughout the conditioning process.
The invention also provides the application of the PET primer for the water-based UV coating, which is to add the cross-linking agent into the PET primer for the water-based UV coating, mix, coat the mixture on a PET film, directly coat the water-based UV coating on the surface of the PET film after drying, and obtain the water-based UV coating after preheating and ultraviolet curing treatment.
Preferably, the cross-linking agent is one or more of waterborne amino resin, carbodiimide, aziridine, epoxy organosiloxane and blocked isocyanate cross-linking agent; preferably, drying is carried out at 120-140 ℃ for 1-5 min.
Different from the primer matched with the solvent-based UV coating, when the primer matched with the water-based UV coating is designed, the interlayer adhesion between the primer and the surface water-based UV must be considered besides the adhesion between the primer and the PET. Although the solvent type has the problems, the solvent type UV resin has more stable adhesive force, and can be matched with a proper diluent to increase the biting ability of the top coating to the primary coating and improve the adhesive force. However, the aqueous system has low solvent content, weak biting ability and large resin curing shrinkage, which increases the difficulty of interlayer adhesion, so that a more reasonable formula is required to be designed, and the interlayer adhesion between the primer and the aqueous UV coating is optimized while the adhesion of the primer to the base film is considered.
The formula is reasonably designed, the obtained primer is water-based, safe and environment-friendly, and the film coated with the primer coating can be well matched with a water-based UV coating for use, has good adhesive strength and meets the market demand.
Detailed Description
The technical solution of the present invention will be described in detail below with reference to specific examples.
Example 1
1. Preparation of aqueous primer
S1, filtering the following waterborne polyester resin by using a 200-mesh and 300-mesh filter screen: adding 20 parts by weight of ST5870(TOYOBO) and 5 parts by weight of MD1245(TOYOBO) into a vat, adding 25 parts by weight of deionized water, and uniformly stirring at 600r/min of 300-;
s2, taking a small cylinder, adding 2 parts by weight of ethylene glycol butyl ether, 2 parts by weight of diethylene glycol ethyl ether and 5 parts by weight of deionized water, and uniformly stirring;
s3, adding surfactant BYK-3490.01 parts by weight, zirconium dioxide dispersion liquid 1.5 parts by weight, mixture in a small cylinder and 39.49 parts by weight of deionized water into the mixture in a large cylinder under the stirring state of 300-600r/min, and continuing stirring for 10 minutes by 500-600 r/min;
and S4, filtering the mixture by using a 300-mesh filter screen to obtain the water-based PET primer.
The temperature must be controlled within 15-30 ℃ during the whole preparation process.
2. Preparation of the coating
The water-borne base coat prepared above and Cymel 327 were mixed in the following ratio of 100: 3, filtering the mixture by a 200-mesh filter screen, coating the mixture on a PET film by using an anilox roller, drying the PET film at the temperature of 130 ℃ for 5min, coating a water-based UV coating, preheating to remove water, and curing by ultraviolet irradiation to obtain the water-based UV coating.
3. Performance testing
The test method comprises the following steps: fixing the sample on a flat plate, printing the UV coating layer to face upwards, sticking a 3M600 adhesive tape on the coating layer, compacting the adhesive tape and the UV coating layer by using a thumb, and then quickly peeling off at an angle of 180 degrees, wherein the surface does not obviously fall off, and the product is qualified.
Tests show that the water-based UV coating coated on the PET not coated with the water-based base coating can be easily pulled off by using a 3M600 adhesive tape, and the water-based UV coating coated on the PET coated with the water-based base coating has good adhesive force and is not easy to fall off.
Example 2
1. Preparation of aqueous primer
S1, filtering the following waterborne acrylic resin and waterborne polyurethane resin by using a 200-mesh and 300-mesh filter screen: 12 parts of ACO-25(DIC) and 8 parts of W-5030 (Mitsui chemical) are added into a vat, 30 parts of deionized water is added, and the mixture is uniformly stirred at 600r/min of 300-;
s2, taking a small cylinder, adding 2 parts by weight of diethylene glycol butyl ether, 2 parts by weight of dipropylene glycol methyl ether and 5 parts by weight of deionized water, and uniformly stirring;
s3, adding the surfactant tego 2700.01 weight parts, the aluminum oxide dispersion liquid 1 weight part, the mixture in the small cylinder and the deionized water 39.99 weight parts into the mixture in the large cylinder under the stirring state of 300-600r/min, and continuing stirring for 10 minutes at 500-600 r/min;
and S4, filtering the mixture by using a 300-mesh filter screen to obtain the water-based PET primer.
The temperature must be controlled within 15-30 ℃ during the whole preparation process.
2. Preparation of the coating
The water-based primer prepared above and SV-02 (riqing textile) were mixed in the following ratio of 100: 2, filtering the mixture through a 200-mesh filter screen, coating the mixture on a PET film through an anilox roller, drying the PET film at the temperature of 120 ℃ for 1min, coating a water-based UV coating, and performing preheating dehydration and ultraviolet irradiation curing to obtain the water-based UV coating.
3. Performance testing
The test method comprises the following steps: the same as in example 1.
Tests show that the water-based UV coating coated on the PET not coated with the water-based base coating can be easily pulled off by using a 3M600 adhesive tape, and the water-based UV coating coated on the PET coated with the water-based base coating has good adhesive force and is not easy to fall off.
Example 3
1. Preparation of aqueous primer
S1, filtering the following waterborne acrylic resin and polyester resin by using a 200-mesh and 300-mesh filter screen: AP-301(DIC)16 weight parts and W-6061 (Mitsui chemical) 6 weight parts are added into a vat, 28 weight parts of deionized water are added, and the mixture is uniformly stirred at 600r/min of 300-;
s2, taking a small cylinder, adding 2 parts by weight of diethylene glycol ethyl ether, 0.5 part by weight of dipropylene glycol butyl ether and 6.5 parts by weight of deionized water, and uniformly stirring;
s3, adding Tego41000.01 parts by weight of surfactant, 1 part by weight of zirconium dioxide dispersion liquid, 39.99 parts by weight of mixture in a small cylinder and 39.99 parts by weight of deionized water into the mixture in a large cylinder under the stirring state of 300-600r/min, and continuing stirring for 10 minutes by 500-600 r/min;
and S4, filtering the mixture by using a 300-mesh filter screen to obtain the water-based PET primer.
The temperature must be controlled within 15-30 ℃ during the whole preparation process.
2. Preparation of the coating
The water-based primer prepared above and MP-200 (Meiji chart) were mixed in the following ratio of 100: 1, filtering the mixture by a 200-mesh filter screen, coating the mixture on a PET film by using an anilox roller, drying the PET film at the temperature of 130 ℃ for 3min, coating a water-based UV coating, preheating to remove water, and curing the coating by ultraviolet irradiation to obtain the water-based UV coating.
3. Performance testing
The test method comprises the following steps: the same as in example 1.
Tests show that the water-based UV coating coated on the PET not coated with the water-based base coating can be easily pulled off by using a 3M600 adhesive tape, and the water-based UV coating coated on the PET coated with the water-based base coating has good adhesive force and is not easy to fall off.
Example 4
1. Preparation of aqueous primer
S1, filtering the following waterborne polyester resin by using a 200-mesh and 300-mesh filter screen: 15 parts of Z-760(GOO CHEMICAL) and 10 parts of KG-0420(TOYOBO) are added into a vat, 25 parts of deionized water are added, and the mixture is uniformly stirred at 600r/min of 300-;
s2, taking a small cylinder, adding 3 parts by weight of diethylene glycol ethyl ether, 1 part by weight of dipropylene glycol butyl ether and 5 parts by weight of deionized water, and uniformly stirring;
s3, adding Tego41000.01 parts by weight of surfactant, 1 part by weight of zirconium dioxide dispersion liquid, 39.99 parts by weight of mixture in a small cylinder and 39.99 parts by weight of deionized water into the mixture in a large cylinder under the stirring state of 300-600r/min, and continuing stirring for 10 minutes by 500-600 r/min;
and S4, filtering the mixture by using a 300-mesh filter screen to obtain the water-based PET primer.
The temperature must be controlled within 15-30 ℃ during the whole preparation process.
2. Preparation of the coating
The water-based primer prepared above and Cymel 325 were mixed in the following ratio of 100: 2, filtering the mixture through a 200-mesh filter screen, coating the mixture on a PET film through an anilox roller, drying the PET film at the temperature of 140 ℃ for 5min, coating a water-based UV coating, and performing preheating, dewatering and ultraviolet irradiation curing to obtain the water-based UV coating.
3. Performance testing
The test method comprises the following steps: the same as in example 1.
Tests show that the water-based UV coating coated on the PET not coated with the water-based base coating can be easily pulled off by using a 3M600 adhesive tape, and the water-based UV coating coated on the PET coated with the water-based base coating has good adhesive force and is not easy to fall off.
Example 5
1. Preparation of aqueous primer
S1, filtering the following waterborne polyester resin by using a 200-mesh and 300-mesh filter screen: 15 parts of Z-760(GOO CHEMICAL) and 10 parts of KG-0420(TOYOBO) are added into a large jar, 25 parts of deionized water are added, and the mixture is uniformly stirred at 600r/min of 300-;
s2, taking a small cylinder, adding 3 parts by weight of diethylene glycol ethyl ether, 1 part by weight of diethylene glycol butyl ether and 5 parts by weight of deionized water, and uniformly stirring;
s3, adding Tego41000.01 parts by weight of surfactant, 1 part by weight of zirconium dioxide dispersion liquid, 39.99 parts by weight of mixture in a small cylinder and 39.99 parts by weight of deionized water into the mixture in a large cylinder under the stirring state of 300-600r/min, and continuing stirring for 10 minutes by 500-600 r/min;
and S4, filtering the mixture by using a 300-mesh filter screen to obtain the water-based PET primer.
The temperature must be controlled within 15-30 ℃ during the whole preparation process.
2. Preparation of the coating
The waterborne primer prepared above and XP2706(Covestro) were mixed as follows, 100: 3, filtering the mixture by a 200-mesh filter screen, coating the mixture on a PET film by using an anilox roller, drying the PET film at the temperature of 140 ℃ for 5min, coating a water-based UV coating, and carrying out preheating dehydration and ultraviolet irradiation curing to obtain the water-based UV coating.
3. Performance testing
The test method comprises the following steps: the same as in example 1.
Tests show that the water-based UV coating coated on the PET not coated with the water-based base coating can be easily pulled off by using a 3M600 adhesive tape, and the water-based UV coating coated on the PET coated with the water-based base coating has good adhesive force and is not easy to fall off.
Comparative example
1. Preparation of aqueous primer
S1, filtering the following waterborne polyester resin by using a 200-mesh and 300-mesh filter screen: 25 parts by weight of Z-687(GOO CHEMICAL, tg 110 ℃) is added into a large jar, 25 parts by weight of deionized water is added, and the mixture is uniformly stirred at 600r/min of 300-;
s2, taking a small cylinder, adding 5 parts by weight of diethylene glycol ethyl ether, 2 parts by weight of diethylene glycol butyl ether and 7 parts by weight of deionized water, and uniformly stirring;
s3, adding Tego41000.01 parts by weight of surfactant, 1 part by weight of zirconium dioxide dispersion liquid, the mixture in the small cylinder and 35.99 parts by weight of deionized water into the mixture in the large cylinder under the stirring state of 300-600r/min, and continuing stirring for 10 minutes by 500-600 r/min;
and S4, filtering the mixture by using a 300-mesh filter screen to obtain the water-based PET primer.
The temperature must be controlled within 15-30 ℃ during the whole preparation process.
2. Preparation of the coating
The waterborne primer prepared above and XP2706(Covestro) were mixed as follows, 100: 3, filtering the mixture by a 200-mesh filter screen, coating the mixture on a PET film by using an anilox roller, drying the PET film at the temperature of 140 ℃ for 5min, coating a water-based UV coating, and carrying out preheating dehydration and ultraviolet irradiation curing to obtain the water-based UV coating.
3. Performance testing
The test method comprises the following steps: the same as in example 1.
Tests show that when the water-based UV coating is coated on the PET coated with the water-based primer coating, the UV coating and the primer coating obviously drop after being pulled for 2 times by using a 3M adhesive tape.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The PET primer coating for the water-based UV coating is characterized by comprising the following raw materials in percentage by weight: 20-25% of water-based resin, 1-5% of film-forming additive, 0.01-3% of other additives and 67-78.99% of deionized water; wherein the tg point of the aqueous resin is 20-80 ℃.
2. The PET primer coating for water-based UV coating according to claim 1, characterized in that the primer coating has a surface dyne value of more than 50.
3. The PET primer for aqueous UV coating according to claim 1 or 2, wherein the aqueous resin comprises at least one of an aqueous polyester-based resin, an aqueous polyurethane-based resin; preferably, the aqueous resin further includes an aqueous acrylic resin.
4. The PET primer for water-based UV coating according to claim 3, wherein the water-based polyester resin comprises one or more of ST5870, MD1245, Z-760 and KG-0420, the water-based polyurethane resin comprises one or more of ACO-25 and AP-301, and the water-based acrylic resin comprises one or more of W-5030 and W-6061.
5. The PET primer for the water-based UV coating according to claim 1, wherein the film forming aid is one or more of ethylene glycol butyl ether, diethylene glycol ethyl ether, diethylene glycol butyl ether, dipropylene glycol methyl ether, diethylene glycol butyl ether, and alcohol ester-12.
6. The PET primer coating agent for aqueous UV coating according to claim 1, wherein the other auxiliary agent is at least one of silicone surfactant, acetylene glycol surfactant and metal oxide dispersion.
7. A preparation method of the PET primer for the water-based UV coating, which is based on any one of claims 1-6, is characterized by comprising the following steps:
s1, adding a proper amount of deionized water into the water-based resin, and uniformly stirring to obtain water-based resin slurry;
s2, adding the rest deionized water into the film-forming aid, and uniformly stirring to obtain film-forming aid slurry;
and S3, adding the film-forming aid sizing material and other aids into the aqueous resin slurry under the stirring state, stirring and filtering to obtain the PET primer for the aqueous UV coating.
8. The method for preparing the PET primer coating for the water-based UV coating according to claim 7, wherein the temperature is controlled to be 15-30 ℃ during the whole preparation process.
9. The use of the PET primer coating agent for the water-based UV coating, which is prepared according to any one of claims 1 to 6 or by the method of any one of claims 7 to 8, is characterized in that a cross-linking agent is added into the PET primer coating agent for the water-based UV coating, the PET primer coating agent is mixed and coated on a PET film, the PET film is directly coated with the water-based UV coating material after being dried, and the water-based UV coating layer is obtained through preheating and ultraviolet curing treatment.
10. The use of the PET primer coating agent for the water-based UV coating according to claim 9, wherein the cross-linking agent is one or more of water-based amino resin cross-linking agents, carbodiimide cross-linking agents, aziridine cross-linking agents, epoxy organosiloxane cross-linking agents and blocked isocyanate cross-linking agents; preferably, drying is carried out at 120-140 ℃ for 1-5 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316215.4A CN113004756A (en) | 2021-03-24 | 2021-03-24 | PET (polyethylene terephthalate) primer for water-based UV (ultraviolet) coating as well as preparation method and application of PET primer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110316215.4A CN113004756A (en) | 2021-03-24 | 2021-03-24 | PET (polyethylene terephthalate) primer for water-based UV (ultraviolet) coating as well as preparation method and application of PET primer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113004756A true CN113004756A (en) | 2021-06-22 |
Family
ID=76406650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110316215.4A Pending CN113004756A (en) | 2021-03-24 | 2021-03-24 | PET (polyethylene terephthalate) primer for water-based UV (ultraviolet) coating as well as preparation method and application of PET primer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113004756A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113583529A (en) * | 2021-08-09 | 2021-11-02 | 海南必凯水性新材料有限公司 | Aqueous coating liquid, preparation method thereof and application of aqueous coating liquid in UV ink printing |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888161A (en) * | 2012-10-23 | 2013-01-23 | 上海维凯化学品有限公司 | Environment-friendly water-based high-adhesion PET (polyethylene terephthalate) precoat coating composition as well as preparation method and application |
| CN103409046A (en) * | 2013-08-20 | 2013-11-27 | 广东新供销天保再生资源发展有限公司 | Water-based PET (polyethylene terephthalate) undercoat paint, and preparation method and application thereof |
| CN108997899A (en) * | 2018-05-17 | 2018-12-14 | 天津宝兴威科技股份有限公司 | A kind of aqueous PET bottom-coating and preparation method thereof |
| CN112341659A (en) * | 2020-11-12 | 2021-02-09 | 常州百佳年代薄膜科技股份有限公司 | Primer, preparation method, raw material formula, coating process and BOPET film |
-
2021
- 2021-03-24 CN CN202110316215.4A patent/CN113004756A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888161A (en) * | 2012-10-23 | 2013-01-23 | 上海维凯化学品有限公司 | Environment-friendly water-based high-adhesion PET (polyethylene terephthalate) precoat coating composition as well as preparation method and application |
| CN103409046A (en) * | 2013-08-20 | 2013-11-27 | 广东新供销天保再生资源发展有限公司 | Water-based PET (polyethylene terephthalate) undercoat paint, and preparation method and application thereof |
| CN108997899A (en) * | 2018-05-17 | 2018-12-14 | 天津宝兴威科技股份有限公司 | A kind of aqueous PET bottom-coating and preparation method thereof |
| CN112341659A (en) * | 2020-11-12 | 2021-02-09 | 常州百佳年代薄膜科技股份有限公司 | Primer, preparation method, raw material formula, coating process and BOPET film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113583529A (en) * | 2021-08-09 | 2021-11-02 | 海南必凯水性新材料有限公司 | Aqueous coating liquid, preparation method thereof and application of aqueous coating liquid in UV ink printing |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101407656B (en) | Environment-friendly type moldable aqueous transfer coating, preparation and use thereof | |
| CN101191029B (en) | Primer composition for metal substrate and its preparation method and multilayer coat | |
| CN112300687B (en) | 3C water-based high-gloss UV finish paint and preparation method and construction process thereof | |
| CN108997925B (en) | Colored dual-curing UV (ultraviolet) coating for automotive upholstery | |
| CN107083150B (en) | A kind of UV coating for automobile interiors and its preparation method and application | |
| CN114163880B (en) | Composite water-based high-temperature amino baking paint and preparation method thereof | |
| CN107057545A (en) | Applied in aqueous dual-component acroleic acid polyurethane and preparation method thereof | |
| CN103409046A (en) | Water-based PET (polyethylene terephthalate) undercoat paint, and preparation method and application thereof | |
| CN108841240B (en) | Mirror silver ink and preparation method and product thereof | |
| CN107245293B (en) | Acrylic acid modified chlorinated rubber water-based paint suitable for marine environment and preparation method thereof | |
| CN103254685A (en) | Ink for surface of finish paint and preparation method thereof | |
| CN112940597B (en) | Water-based secondary hydroxyl acrylic polyurethane finish paint for wet spraying process and preparation method thereof | |
| CN115873485B (en) | Water-based low-temperature double-component polyurethane primer-topcoat silver paint and preparation method thereof | |
| CN108047912B (en) | Super-weather-resistant low-VOC (volatile organic compound) bus colored paint and preparation method thereof | |
| CN112920698A (en) | Printable water-based transfer coating and preparation method thereof | |
| CN113004756A (en) | PET (polyethylene terephthalate) primer for water-based UV (ultraviolet) coating as well as preparation method and application of PET primer | |
| CN109321049A (en) | Coating composition and preparation method thereof for solar energy backboard | |
| CN111349385A (en) | Polishing-free water-based primer surfacer matched with ceramic finish and preparation method thereof | |
| CN103666179A (en) | VOC (volatile organic compound)-free epoxy modified water-borne PU (polyurethane) finish paint and preparation method thereof | |
| CN111117399A (en) | Environment-friendly water-based electrosilvering-imitating coating and preparation method thereof | |
| CN111087847A (en) | Electroplating coating silk-screen printing ink and preparation method thereof | |
| CN110746875A (en) | Waterborne polyurethane finish paint and preparation method thereof | |
| CN111978829B (en) | Ultra-yellowing-resistant high-hardness UV full-bright transparent finish paint and preparation method thereof | |
| CN111205683B (en) | UV dual-curing corrugated paint and preparation method thereof | |
| CN112111191B (en) | PET (polyethylene terephthalate) heat transfer water-based ink without release agent and preparation method 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210622 |
|
| RJ01 | Rejection of invention patent application after publication |