CN112341599A - Ultraviolet-curing matte resin and preparation method thereof - Google Patents

Ultraviolet-curing matte resin and preparation method thereof Download PDF

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Publication number
CN112341599A
CN112341599A CN202011348027.1A CN202011348027A CN112341599A CN 112341599 A CN112341599 A CN 112341599A CN 202011348027 A CN202011348027 A CN 202011348027A CN 112341599 A CN112341599 A CN 112341599A
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nco
matte
reaction kettle
diisocyanate
temperature
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邹庆鹏
谢灯咨
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Guangdong Libang Changrunfa Science And Technology Material Co ltd
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Guangdong Libang Changrunfa Science And Technology Material Co ltd
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
    • C08G18/7671Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40High-molecular-weight compounds
    • C08G18/42Polycondensates having carboxylic or carbonic ester groups in the main chain
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67Unsaturated compounds having active hydrogen
    • C08G18/671Unsaturated compounds having only one group containing active hydrogen
    • C08G18/672Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/67Unsaturated compounds having active hydrogen
    • C08G18/671Unsaturated compounds having only one group containing active hydrogen
    • C08G18/672Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen
    • C08G18/673Esters of acrylic or alkyl acrylic acid having only one group containing active hydrogen containing two or more acrylate or alkylacrylate ester groups
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    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
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    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72Polyisocyanates or polyisothiocyanates
    • C08G18/74Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7614Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • C09D175/14Polyurethanes having carbon-to-carbon unsaturated bonds

Abstract

The invention provides ultraviolet curing matte resin which comprises the following components in parts by weight: 60-80 parts of polyester polyol, 10-20 parts of diisocyanate, 0-0.1 part of polymerization inhibitor, 0-0.1 part of antioxidant, 0-0.1 part of catalyst and 10-30 parts of hydroxyl acrylate. The ultraviolet light curing matte resin is synthesized by using polyester polyol, diisocyanate and hydroxyl acrylate as main reactants, the double bond density of the synthetic resin is reduced by using large molecular weight polyester polyol, and the matte powder is suspended on the surface of a coating by using a monomer, so that the gloss is reduced on two aspects, and the synthesized resin has excellent matte performance. The invention also provides a preparation method of the ultraviolet curing matte resin.

Description

Ultraviolet-curing matte resin and preparation method thereof
Technical Field
The invention relates to the technical field of paint production, in particular to ultraviolet curing matte resin and a preparation method thereof.
Background
The ultraviolet curing is a process of initiating the polymerization and crosslinking of resin containing active functional groups into insoluble and infusible solid coating films by converting a photoinitiator in a liquid UV material into free radicals or cations under the medium-short wave irradiation of ultraviolet light. The ultraviolet curing technology is widely applied to the fields of coatings, printing ink, adhesives and the like because of the advantages of high efficiency, economy, energy conservation, wide applicability and environmental friendliness.
In recent years, for the use purpose and the environmental demand, the furniture decorated by the matte coating is popular with the consumers because the furniture can reduce the light pollution and meet the modern aesthetic requirements. The coating with the matte performance is generally obtained by adding matte powder on the basis of an ultraviolet curing coating. This coating is a low gloss coating, and the paint film obtained by curing it has a soft, not strong, and therefore soft appearance.
Chinese patent with publication number CN107936818A discloses an ultraviolet-curing solvent-free spray-coating matte finish paint, which comprises the following components in percentage by weight: 5-25% of nine-functional-group hyperbranched polyurethane acrylate resin, 5-20% of modified epoxy acrylate resin, 10.8-26% of auxiliary agent, 3-6% of photoinitiator and 30-60% of UV reactive diluent. The matte finish paint of the patent provides high reaction rate by introducing nine-functional group hyperbranched polyurethane, and improves weather resistance by matching with modified epoxy acrylate resin. Obviously, the nine-functional hyperbranched polyurethane used in the method needs an additional preparation process, and the gloss is outstanding after curing, so that the matte performance of the polyurethane is still to be verified.
Therefore, how to provide a resin which can be cured by ultraviolet light and has matte performance is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides an ultraviolet light-cured matte resin, which uses polyester polyol, diisocyanate and hydroxyl acrylate as main reactants to synthesize an ultraviolet light-curable matte resin, reduces the double bond density of the synthetic resin by using large molecular weight polyester polyol, suspends matte powder on the surface of a coating by using a monomer, reduces gloss in two aspects, and enables the synthetic resin to have excellent matte performance. The invention also provides a preparation method of the ultraviolet curing matte resin.
In order to achieve the purpose, the invention provides the following technical scheme:
the ultraviolet curing matte resin comprises the following components in parts by weight:
Figure BDA0002800521570000021
according to the further description of the technical scheme of the invention, the molecular weight of the polyester polyol resin is 2000-5000.
According to a further description as an embodiment of the present invention, the diisocyanate is at least one of isophorone diisocyanate, toluene diisocyanate, or diphenylmethane diisocyanate.
According to a further description as the technical solution of the present invention, the antioxidant is at least one of 2, 6-di-tert-butylphenol, hydroquinone or triphenyl phosphite.
According to a further elaboration as a solution according to the invention, the catalyst is dibutyltin dilaurate.
According to a further description as an embodiment of the present invention, the hydroxy acrylate is at least one of hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate, or pentaerythritol triacrylate.
The invention also provides a preparation method of the ultraviolet curing matte resin, which comprises the following steps:
s1, sequentially adding diisocyanate, a catalyst, a polymerization inhibitor and an antioxidant into a reaction kettle in parts by weight, and heating to 40-50 ℃;
s2, dripping polyester polyol into the reaction kettle, stirring, and slowly heating to 55-65 ℃;
s3, after the polyester polyol is completely dripped, keeping the temperature of the reaction kettle at 60-65 ℃, detecting after 1 hour to determine whether the NCO% is reduced to a half of an initial value, and continuing to preserve heat if the NCO% is too high;
s4, dropwise adding part of the uniformly mixed hydroxyl acrylate, and controlling the temperature of the reaction kettle to slowly rise but not to exceed 90 ℃;
s5, preserving heat at 85-88 ℃, measuring NCO% after 0.5h, adding the rest hydroxyl acrylic ester when the NCO% is less than or equal to 0.5%, continuing preserving heat at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
s6, turning the kettle, adding the monomers and the matte powder in proportion, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
Further, in S4, the dropping operation of the hydroxyacrylate was completed within 30 min.
Based on the technical scheme, the invention has the following technical effects:
(1) according to the ultraviolet-curing matte resin provided by the invention, polyester polyol, diisocyanate and hydroxyl acrylate are used as main reactants to synthesize the ultraviolet-curing matte resin, the double bond density of the synthetic resin is reduced by using large molecular weight polyester polyol, and the matte powder is suspended on the surface of a coating by using a monomer, so that the gloss is reduced on two aspects, and the synthetic resin has excellent matte performance.
(2) The preparation method of the ultraviolet curing matte resin provided by the invention is simple to operate, can prepare the ultraviolet curing matte resin with better comprehensive performance by optimizing components and adopting a temperature programming process, can be used in the fields of spraying, roller coating, curtain coating and the like, has low price and can achieve good matte effect, and the gloss can be reduced to about 5 ℃ only by adding 3-5 points of matte powder.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the specific embodiments illustrated. The invention provides a preferred embodiment. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example 1
The ultraviolet curing matte resin comprises the following components in parts by weight:
Figure BDA0002800521570000031
the molecular weight of the polyester polyol resin is 2000-5000.
The diisocyanate is at least one of isophorone diisocyanate, toluene diisocyanate or diphenylmethane diisocyanate.
The antioxidant is at least one of 2, 6-di-tert-butylphenol, hydroquinone or triphenyl phosphite.
The catalyst is dibutyltin dilaurate.
The hydroxy acrylate is at least one of hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate or pentaerythritol triacrylate.
The preparation method of the ultraviolet curing matte resin comprises the following steps:
s1, sequentially adding diisocyanate, a catalyst, a polymerization inhibitor and an antioxidant into a reaction kettle in parts by weight, and heating to 40-50 ℃;
s2, dripping polyester polyol into the reaction kettle, stirring, and slowly heating to 55-65 ℃;
s3, after the polyester polyol is completely dripped, keeping the temperature of the reaction kettle at 60-65 ℃, detecting whether the NCO% is reduced to a half of an initial value after 1 hour, and continuing to keep the temperature if the NCO% is too high;
s4, dropwise adding part of the uniformly mixed hydroxyl acrylate, and controlling the temperature of the reaction kettle to slowly rise but not to exceed 90 ℃;
s5, preserving heat at 85-88 ℃, measuring NCO% after 0.5h, adding the rest hydroxyl acrylic ester when the NCO% is less than or equal to 0.5%, continuing preserving heat at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
s6, turning the kettle, adding the monomers and the matte powder in proportion, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
In S4, the dropping operation of the hydroxyacrylate was completed within 30 min.
Example 2
An ultraviolet light curing matte resin is prepared according to the following steps:
step 1): putting 222.3g of isophorone diisocyanate, 0.15g of dibutyltin dilaurate, 0.3g of p-hydroxyanisole and 0.1g of 2, 6-di-tert-butyl-4-methylphenol into a reaction kettle in sequence, and heating to 40-50 ℃;
step 2): dripping 1000g of polyester diol with molecular weight of 2000 into a reaction kettle, stirring, and slowly heating to 65 ℃;
step 3): after the polyester polyol is dripped, the temperature of the reaction kettle is kept at 60-65 ℃, after 1 hour, the NCO% is detected to determine whether to be reduced to a half of an initial value, and if the NCO% is too high, the temperature is kept continuously;
step 4): dripping 117g of pentaerythritol triacrylate and 87g of hydroxyethyl acrylate which are uniformly mixed, finishing dripping within 30min, and controlling the temperature of a reaction kettle to slowly rise but not exceed 90 ℃;
step 5): keeping the temperature at 85-88 ℃, after 0.5h, when the NCO% is measured and the NCO% is less than or equal to 0.5%, adding the rest 20g of hydroxyethyl acrylate, keeping the temperature at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
step 6): and (3) transferring to a kettle, using the monomer, the matte powder and the dispersant BYK2008 according to the proportion of 10-30% of the monomer, 3-10% of the matte powder and 0.1-2% of the dispersant, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
Example 3
An ultraviolet light curing matte resin is prepared according to the following steps:
step 1): 250.24g of diphenylmethane diisocyanate, 0.15g of dibutyltin dilaurate, 0.3g of p-hydroxyanisole and 0.1g of 2, 6-di-tert-butyl-4-methylphenol are sequentially added into a reaction kettle, and the temperature is raised to 40-50 ℃;
step 2): dripping 1000g of polyester diol with molecular weight of 2000 into a reaction kettle, stirring, and slowly heating to 65 ℃;
step 3): after the polyester polyol is dripped, the temperature of the reaction kettle is kept at 60-65 ℃, after 1 hour, the NCO% is detected to determine whether to be reduced to a half of an initial value, and if the NCO% is too high, the temperature is kept continuously;
step 4): dripping 117g of pentaerythritol triacrylate and 87g of hydroxyethyl acrylate which are uniformly mixed, finishing dripping within 30min, and controlling the temperature of a reaction kettle to slowly rise but not exceed 90 ℃;
step 5): keeping the temperature at 85-88 ℃, after 0.5h, when the NCO% is measured and the NCO% is less than or equal to 0.5%, adding the rest 20g of hydroxyethyl acrylate, keeping the temperature at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
step 6): and (3) transferring to a kettle, using the monomer, the matte powder and the dispersant BYK2008 according to the proportion of 10-30% of the monomer, 3-10% of the matte powder and 0.1-2% of the dispersant, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
Example 4
An ultraviolet light curing matte resin is prepared according to the following steps:
step 1): 174.16g of toluene diisocyanate, 0.15g of dibutyltin dilaurate, 0.3g of p-hydroxyanisole and 0.1g of 2, 6-di-tert-butyl-4-methylphenol are sequentially added into a reaction kettle, and the temperature is raised to 40-50 ℃;
step 2): dripping 1000g of polyester diol with molecular weight of 2000 into a reaction kettle, stirring, and slowly heating to 65 ℃;
step 3): after the polyester polyol is dripped, the temperature of the reaction kettle is kept at 60-65 ℃, after 1 hour, the NCO% is detected to determine whether to be reduced to a half of an initial value, and if the NCO% is too high, the temperature is kept continuously;
step 4): dripping 117g of pentaerythritol triacrylate and 87g of hydroxyethyl acrylate which are uniformly mixed, finishing dripping within 30min, and controlling the temperature of a reaction kettle to slowly rise but not exceed 90 ℃;
step 5): keeping the temperature at 85-88 ℃, after 0.5h, when the NCO% is measured and the NCO% is less than or equal to 0.5%, adding the rest 20g of hydroxyethyl acrylate, keeping the temperature at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
step 6): and (3) transferring to a kettle, using the monomer, the matte powder and the dispersant BYK2008 according to the proportion of 10-30% of the monomer, 3-10% of the matte powder and 0.1-2% of the dispersant, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
Example 5
An ultraviolet light curing matte resin is prepared according to the following steps:
step 1): putting 222.3g of isophorone diisocyanate, 0.2g of dibutyltin dilaurate, 0.25g of p-hydroxyanisole and 0.13g of 2, 6-di-tert-butyl-4-methylphenol into a reaction kettle in sequence, and heating to 40-50 ℃;
step 2): dropping 2000g of polyester diol with the molecular weight of 4000 into a reaction kettle, stirring, and slowly heating to 65 ℃;
step 3): after the polyester polyol is dripped, the temperature of the reaction kettle is kept at 60-65 ℃, after 1 hour, the NCO% is detected to determine whether to be reduced to a half of an initial value, and if the NCO% is too high, the temperature is kept continuously;
step 4): dripping 117g of pentaerythritol triacrylate and 87g of hydroxyethyl acrylate which are uniformly mixed, finishing dripping within 30min, and controlling the temperature of a reaction kettle to slowly rise but not exceed 90 ℃;
step 5): keeping the temperature at 85-88 ℃, after 0.5h, when the NCO% is measured and the NCO% is less than or equal to 0.5%, adding the rest 20g of hydroxyethyl acrylate, keeping the temperature at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
step 6): and (3) transferring to a kettle, using the monomer, the matte powder and the dispersant BYK2008 according to the proportion of 10-30% of the monomer, 3-10% of the matte powder and 0.1-2% of the dispersant, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
Example 6
An ultraviolet light curing matte resin is prepared according to the following steps:
step 1): 250.24g of diphenylmethane diisocyanate, 0.15g of dibutyltin dilaurate, 0.3g of p-hydroxyanisole and 0.1g of 2, 6-di-tert-butyl-4-methylphenol are sequentially added into a reaction kettle, and the temperature is raised to 40-50 ℃;
step 2): dropping 2000g of polyester diol with the molecular weight of 4000 into a reaction kettle, stirring, and slowly heating to 65 ℃;
step 3): after the polyester polyol is dripped, the temperature of the reaction kettle is kept at 60-65 ℃, after 1 hour, the NCO% is detected to determine whether to be reduced to a half of an initial value, and if the NCO% is too high, the temperature is kept continuously;
step 4): dripping 117g of pentaerythritol triacrylate and 87g of hydroxyethyl acrylate which are uniformly mixed, finishing dripping within 30min, and controlling the temperature of a reaction kettle to slowly rise but not exceed 90 ℃;
step 5): keeping the temperature at 85-88 ℃, after 0.5h, when the NCO% is measured and the NCO% is less than or equal to 0.5%, adding the rest 20g of hydroxyethyl acrylate, keeping the temperature at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
step 6): and (3) transferring to a kettle, using the monomer, the matte powder and the dispersant BYK2008 according to the proportion of 10-30% of the monomer, 3-10% of the matte powder and 0.1-2% of the dispersant, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
Example 7
An ultraviolet light curing matte resin is prepared according to the following steps:
step 1): 174.16g of toluene diisocyanate, 0.15g of dibutyltin dilaurate, 0.3g of p-hydroxyanisole and 0.1g of 2, 6-di-tert-butyl-4-methylphenol are sequentially added into a reaction kettle, and the temperature is raised to 40-50 ℃;
step 2): dropping 2000g of polyester diol with the molecular weight of 4000 into a reaction kettle, stirring, and slowly heating to 65 ℃;
step 3): after the polyester polyol is dripped, the temperature of the reaction kettle is kept at 60-65 ℃, after 1 hour, the NCO% is detected to determine whether to be reduced to a half of an initial value, and if the NCO% is too high, the temperature is kept continuously;
step 4): dripping 117g of pentaerythritol triacrylate and 87g of hydroxyethyl acrylate which are uniformly mixed, finishing dripping within 30min, and controlling the temperature of a reaction kettle to slowly rise but not exceed 90 ℃;
step 5): keeping the temperature at 85-88 ℃, after 0.5h, when the NCO% is measured and the NCO% is less than or equal to 0.5%, adding the rest 20g of hydroxyethyl acrylate, keeping the temperature at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
step 6): and (3) transferring to a kettle, using the monomer, the matte powder and the dispersant BYK2008 according to the proportion of 10-30% of the monomer, 3-10% of the matte powder and 0.1-2% of the dispersant, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
Example 8
An ultraviolet light curing matte resin is prepared according to the following steps:
step 1): putting 222.3g of isophorone diisocyanate, 0.15g of dibutyltin dilaurate, 0.3g of p-hydroxyanisole and 0.1g of 2, 6-di-tert-butyl-4-methylphenol into a reaction kettle in sequence, and heating to 40-50 ℃;
step 2): dripping 1000g of polyester diol with molecular weight of 2000 into a reaction kettle, stirring, and slowly heating to 65 ℃;
step 3): after the polyester polyol is dripped, the temperature of the reaction kettle is kept at 60-65 ℃, after 1 hour, the NCO% is detected to determine whether to be reduced to a half of an initial value, and if the NCO% is too high, the temperature is kept continuously;
step 4): dripping 117g of pentaerythritol triacrylate and 87g of hydroxyethyl acrylate which are uniformly mixed, finishing dripping within 30min, and controlling the temperature of a reaction kettle to slowly rise but not exceed 90 ℃;
step 5): keeping the temperature at 85-88 ℃, after 0.5h, when the NCO% is measured and the NCO% is less than or equal to 0.5%, adding the rest 20g of hydroxyethyl acrylate, keeping the temperature at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
step 6): and (3) transferring to a kettle, using the monomer, the matte powder and the dispersant BYK2008 according to the proportion of 10-30% of the monomer, 3-10% of the matte powder and 0.1-2% of the dispersant, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
Comparative example 1
Conventional uv curable matte resins.
The uv curable matte resins of examples 2 to 8, and the conventional uv curable matte resin of comparative example 1 were examined. The test results are shown in Table 1.
Table 1 test table for the properties of the uv curable matte resins of examples 2 to 8, and the conventional uv curable matte resin of comparative example 1
Figure BDA0002800521570000081
As can be seen from the test results in table 1, the uv curable matte resins provided in examples 2 to 8, which are synthesized by using polyester polyol, diisocyanate and hydroxy acrylate as main reactants, have uv curable matte resins, reduce the double bond density of the synthetic resins by using large molecular weight polyester polyol, suspend the matte powder on the surface of the coating layer by using monomers, and reduce gloss in two aspects, so that the synthesized resins have excellent matte properties. The ultraviolet-curable matte resin can be applied to the fields of spraying, roller coating, curtain coating and the like, has low price and good matte effect, and can reduce the gloss to about 5 degrees only by adding 3-5 points of matte powder. In addition, the resin also has good adhesive force and performance.
The foregoing is merely exemplary and illustrative of the structures of the present invention, which are described in some detail and detail, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications are possible without departing from the inventive concept, and such obvious alternatives fall within the scope of the invention.

Claims (8)

1. The ultraviolet light curing matte resin is characterized by comprising the following components in parts by weight:
Figure FDA0002800521560000011
2. the ultraviolet-curable matte resin according to claim 1, wherein the polyester polyol resin has a molecular weight of 2000-5000.
3. The UV-curable matte resin according to claim 1, wherein the diisocyanate is at least one of isophorone diisocyanate, toluene diisocyanate or diphenylmethane diisocyanate.
4. The uv-curable matte resin according to claim 1, wherein the antioxidant is at least one of 2, 6-di-tert-butylphenol, hydroquinone or triphenyl phosphite.
5. The uv-curable matte resin according to claim 1, wherein the catalyst is dibutyltin dilaurate.
6. The uv-curable matte resin according to claim 1, wherein the hydroxy acrylate is at least one of hydroxyethyl acrylate, hydroxyethyl methacrylate, hydroxypropyl acrylate or pentaerythritol triacrylate.
7. The preparation method of the ultraviolet light curing matte resin as claimed in any one of claims 1 to 6, which is characterized by comprising the following steps:
s1, sequentially adding diisocyanate, a catalyst, a polymerization inhibitor and an antioxidant into a reaction kettle in parts by weight, and heating to 40-50 ℃;
s2, dripping polyester polyol into the reaction kettle, stirring, and slowly heating to 55-65 ℃;
s3, after the polyester polyol is completely dripped, keeping the temperature of the reaction kettle at 60-65 ℃, detecting after 1 hour to determine whether the NCO% is reduced to a half of an initial value, and continuing to preserve heat if the NCO% is too high;
s4, dropwise adding part of the uniformly mixed hydroxyl acrylate, and controlling the temperature of the reaction kettle to slowly rise but not to exceed 90 ℃;
s5, preserving heat at 85-88 ℃, measuring NCO% after 0.5h, adding the rest hydroxyl acrylic ester when the NCO% is less than or equal to 0.5%, continuing preserving heat at 85-88 ℃ for 1h, confirming that the NCO% is less than or equal to 0.1%, and cooling;
s6, turning the kettle, adding the monomers and the matte powder in proportion, and dispersing for 30min at 2500rpm by using a high-speed dispersion machine.
8. The production method according to claim 1, wherein the dropping of the hydroxyacrylate in S4 is completed within 30 min.
CN202011348027.1A 2020-11-26 2020-11-26 Ultraviolet-curing matte resin and preparation method thereof Pending CN112341599A (en)

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN115569089A (en) * 2022-11-09 2023-01-06 郑州圣莱特空心微珠新材料有限公司 Matte nail polish gel and preparation method thereof

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JP2007284480A (en) * 2006-04-12 2007-11-01 Kansai Paint Co Ltd Two-pack type water-based coating composition
CN105694651A (en) * 2014-11-28 2016-06-22 合众(佛山)化工有限公司 A preparing method of water-based self-crosslinking acrylic acid modified polyurethane matte resin
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JP2007284480A (en) * 2006-04-12 2007-11-01 Kansai Paint Co Ltd Two-pack type water-based coating composition
CN105694651A (en) * 2014-11-28 2016-06-22 合众(佛山)化工有限公司 A preparing method of water-based self-crosslinking acrylic acid modified polyurethane matte resin
CN106833357A (en) * 2017-01-16 2017-06-13 哈尔滨工业大学无锡新材料研究院 A kind of ultraviolet light cured burnished paint and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115569089A (en) * 2022-11-09 2023-01-06 郑州圣莱特空心微珠新材料有限公司 Matte nail polish gel and preparation method thereof
CN115569089B (en) * 2022-11-09 2024-03-19 郑州圣莱特空心微珠新材料有限公司 Matte nail polish adhesive and preparation method thereof

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Application publication date: 20210209