CN115403996A - UV external texture spraying glue and application method thereof - Google Patents

UV external texture spraying glue and application method thereof Download PDF

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Publication number
CN115403996A
CN115403996A CN202211076646.9A CN202211076646A CN115403996A CN 115403996 A CN115403996 A CN 115403996A CN 202211076646 A CN202211076646 A CN 202211076646A CN 115403996 A CN115403996 A CN 115403996A
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CN
China
Prior art keywords
texture
coating
shower
external
glue
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
Application number
CN202211076646.9A
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Chinese (zh)
Inventor
赖忠财
陶林华
莫智权
陶萱兰
刘袆兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huizhou Quanshengde New Material Co ltd
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Huizhou Quanshengde New Material Co ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Huizhou Quanshengde New Material Co ltd filed Critical Huizhou Quanshengde New Material Co ltd
Priority to CN202211076646.9A priority Critical patent/CN115403996A/en
Publication of CN115403996A publication Critical patent/CN115403996A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04Coating
    • 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/63Additives non-macromolecular organic
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2333/00Characterised 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
    • C08J2333/04Characterised 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
    • C08J2333/06Characterised 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 of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C08J2333/10Homopolymers or copolymers of methacrylic acid esters
    • C08J2333/12Homopolymers or copolymers of methyl methacrylate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04Polyurethanes
    • C08J2475/14Polyurethanes having carbon-to-carbon unsaturated bonds

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses UV external texture shower coating glue which comprises, by weight, 35-50% of an oligomer, 5-10% of an active monomer, 2-3% of a free radical type photoinitiator, 2-3% of an auxiliary agent and 50-65% of a solvent. The invention also provides an application method of the UV external texture shower coating glue. The invention has the beneficial effects that: the UV outer texture glue coating can be subjected to LED pre-curing, the tensile property is good, and high-pressure forming can be performed.

Description

UV external texture spraying glue and application method thereof
[ technical field ] A
The invention relates to the technical field of UV (ultraviolet) glue, in particular to UV external texture shower coating glue and an application method thereof.
[ background of the invention ]
The UV outer texture spraying glue with high wear resistance and good toughness has the advantages of wear resistance, scratch resistance and good toughness, and has remarkable advantages and potential on the decoration of shells of products such as mobile phones, notebook computers, household appliances and automobiles. The spray coating surface is smooth, the spray coating thickness is thin (3-6 microns), and the wear resistance is good. But the folded surface of the finished product is easy to crack, the surface can not be provided with textures, the surface texture sand effect can not be achieved, and the outer surface of the product is decorated singly.
[ summary of the invention ]
The invention discloses UV external texture shower coating glue and an application method thereof, which can solve the technical problems related to the background technology.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the UV external texture shower coating glue comprises, by weight, 35-50% of an oligomer, 5-10% of an active monomer, 2-3% of a free radical type photoinitiator, 2-3% of an auxiliary agent and 50-65% of a solvent.
As a preferred improvement of the invention, the oligomer is urethane acrylate.
As a preferred refinement of the invention, the reactive monomer is a 6-functional monomer DPHA.
As a preferred improvement of the present invention, the free radical photoinitiator is selected from 1-hydroxycyclohexyl phenyl ketone, diphenyl- (2,4,6-trimethylbenzoyl) phosphine oxide.
As a preferable improvement of the invention, the auxiliary agent is one or more of gamma-aminopropyltriethoxysilane, gamma- (2,3-glycidoxy) propyltrimethoxysilane, gamma- (methacryloyloxy) propyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane and vinyl trimethoxysilane.
As a preferable improvement of the invention, the solvent is one or more of butyl acetate, methyl isobutyl ketone and 1,1,3-trimethylcyclohexenone (isophorone).
The invention also provides an application method of the UV external texture shower coating glue, which comprises the following steps:
step one, preparation: cleaning the acrylic surface of the composite board by using butyl acetate;
step two, curtain coating and baking: spraying UV external texture glue on the acrylic surface of the cleaned composite board, and then baking for 8min at the temperature of 55-70 ℃;
step three, embossing the membrane arranging sheet: coating UV external texture on the acrylic surface of the composite board, coating the coating glue, pasting the texture, grinding, and then carrying out vacuum rubbing or rolling and defoaming;
step four, LED pre-curing: the energy is 200-500mJ/cm 2 The LED lamp pre-cures the UV external texture shower coating glue;
step five, demolding: tearing the texture film;
and step six, high-pressure forming, and secondary reinforcing by using a mercury lamp.
The invention has the beneficial effects that: the UV outer texture glue coating can be subjected to LED pre-curing, the tensile property is good, and high-pressure forming can be performed.
[ detailed description ] A
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides UV external texture shower coating glue which comprises, by weight, 35-50% of an oligomer, 5-10% of an active monomer, 2-3% of a free radical type photoinitiator, 2-3% of an auxiliary agent and 50-65% of a solvent.
The oligomer is urethane acrylate. The oligomer is the most key component of the UV external texture shower coating, the type, functionality and molecular weight of the oligomer determine the basic properties of the UV external texture shower coating, such as toughness, hardness, transparency, curing shrinkage, abrasion resistance, adhesion and other properties, the oligomer with functionality of 6 or more and larger molecular weight is selected as a main body together with 2-3 functional resin with good tensile property, and the oligomer has lower shrinkage, high hardness and good adhesion with a base material in the curing reaction process after being combined. Such as: the organic-inorganic hybrid resins 601X-35 of Changxing company, UT-3520EA and 1700B synthesized in Japan, UN-901T, UN-3320-HC, UN-3320-HA, UN-7700 and UN-900PEP of Nissan Kogyo. Finally, 601X-35, UN-900PEP, UN-901T, UN-3320-HC and the like are preferable.
The active monomer is a 6-functional monomer DPHA, is used for adjusting the viscosity of a baked system and is beneficial to clear and full texture rubbing.
The free radical type photoinitiator is selected from 1-hydroxycyclohexyl phenyl ketone and diphenyl- (2,4,6-trimethyl benzoyl) phosphine oxide (TPO), wherein diphenyl- (2,4,6-trimethyl benzoyl) phosphine oxide (TPO) is used for LED deep curing, and ultraviolet light is absorbed to initiate curtaining, crosslinking and curing; the 1-hydroxycyclohexyl phenyl ketone (184) photoinitiator has the function of curing the surface of a mercury lamp, and secondary reinforcement is carried out on the mercury lamp after high-pressure molding, so that the performance and the wear resistance are improved.
The auxiliary agent is one or more of gamma-aminopropyltriethoxysilane, gamma- (2,3-glycidoxy) propyltrimethoxysilane, gamma- (methacryloyloxy) propyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane and vinyl trimethoxysilane. The auxiliary agent has the functions of improving the water drop angle of the spray coating and improving the smoothness of the surface.
The solvent is one or more of butyl acetate, methyl isobutyl ketone and 1,1,3-trimethylcyclohexenone (isophorone). The solvent is used for controlling the solid content of the UV external texture coating glue, controlling the coating thickness, biting and eroding the acrylic surface and promoting the adhesion of the coating glue to the acrylic surface.
The invention provides a preparation method of UV external texture shower coating glue, which comprises the following steps:
adding a photoinitiator and part of solvent into a stainless steel barrel, stirring for dissolving, adding the oligomer, the active monomer, the auxiliary agent and the rest solvent, mixing and stirring uniformly, dispersing at high speed by a dispersion machine, filtering and packaging to obtain the UV external texture shower coating glue.
The invention also provides an application method of the UV external texture shower coating glue, which comprises the following steps:
step one, preparation: cleaning the acrylic surface of the composite board by using butyl acetate;
step two, curtain coating and baking: spraying UV external texture glue on the acrylic surface of the cleaned composite board, and then baking for 8min at the temperature of 55-70 ℃;
step three, embossing the membrane arranging sheet: coating UV external texture on the acrylic surface of the composite board, coating the coating glue, pasting the texture, grinding, and then carrying out vacuum rubbing or rolling and defoaming;
step four, LED pre-curing: the energy is 200-500mJ/cm 2 The LED lamp pre-cures the UV external texture shower coating glue;
step five, demolding: tearing the texture membrane;
and step six, high-pressure forming, and secondary reinforcing by using a mercury lamp.
The detection of the relevant performance of the ultraviolet curing transfer printing adhesive is as follows:
1. the adhesion test method comprises the following steps: the molded workpiece is balanced and placed on a horizontal table, a hundred-grid knife is used for cutting a 1mm grid, the hundred grids are pulled for three times by using No. 3M and No. 610 adhesive tapes, and the pulled part is less than 5 percent of each small grid, so that the molded workpiece is qualified.
And (4) judging a result: each cell dropped less than 1%.
2. Wear resistance:
the test method comprises the following steps: the product is placed on a horizontal desktop in a balanced manner, the surface is kept clean, the weight is 1000gf, the rigid velvet is wear-resistant and can move back and forth by 500 g, the product is not worn, and the texture is visible.
And (4) judging a result: 500 go back and forth without missing the bottom and the texture is visible.
3. Hardness:
the test method comprises the following steps: preparing a sample with the film thickness of 22 +/-2 microns, placing the sample on a flat and horizontal table board, fixing the pencil by using a fixer from the hardest pencil to form an angle of 45 degrees with the surface of the sample, keeping the pencil point direction away from an operator, and scratching the pencil in the direction away from the operator for about 6.5mm till a certain pencil cannot be scratched to scratch a paint film, wherein the pencil hardness is the hardness of the film forming surface.
And (5) judging a result: hardness 3H showed no scratch, and 6H showed scratch.
4. Bending:
the test method comprises the following steps: the product is placed into a bending tester, and is bent forward and backward at 30 degrees without cracks, and the large surface at 60 degrees has no cracks.
And (4) judging a result: the front and back are bent by 30 degrees and 60 degrees and are both OK.
The invention has the beneficial effects that: the UV outer texture glue coating can be subjected to LED pre-curing, the tensile property is good, and high-pressure forming can be performed.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and embodiments, which are fully applicable to various fields of endeavor for which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described without departing from the generic concept as defined by the claims and the equivalents thereof.

Claims (7)

1. The UV external texture shower coating glue is characterized by comprising, by weight, 35-50% of oligomer, 5-10% of active monomer, 2-3% of free radical type photoinitiator, 2-3% of auxiliary agent and 50-65% of solvent.
2. The UV outer texture shower coating of claim 1 wherein the oligomer is urethane acrylate.
3. The UV external texture shower gel of claim 1, wherein the reactive monomer is a 6 functional monomer DPHA.
4. The UV external texture shower gel of claim 1, wherein the free radical photoinitiator is selected from the group consisting of 1-hydroxycyclohexyl phenyl ketone, diphenyl- (2,4,6-trimethylbenzoyl) phosphine oxide.
5. The UV external texture shower coating according to claim 1, wherein the auxiliary agent is one or more of gamma-aminopropyltriethoxysilane, gamma- (2,3-glycidoxy) propyltrimethoxysilane, gamma- (methacryloyloxy) propyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropylmethyldimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltrimethoxysilane and vinyltrimethoxysilane.
6. The UV external texture shower gel coating of claim 1 wherein the solvent is one or more of butyl acetate, methyl isobutyl ketone, 1,1,3-trimethylcyclohexenone (isophorone).
7. A method of applying the UV outer texture shower coating according to any one of claims 1 to 6, comprising the steps of:
step one, preparation: cleaning the acrylic surface of the composite board by using butyl acetate;
step two, curtain coating and baking: spraying UV external texture spraying glue on the acrylic surface of the cleaned composite board, and then baking for 8min at the temperature of 55-70 ℃;
step three, embossing the membrane arranging sheet: coating UV external texture on the acrylic surface of the composite board, coating the coating glue, pasting the texture, grinding, and then carrying out vacuum rubbing or rolling and defoaming;
step four, LED pre-curing: the energy is 200-500mJ/cm 2 The LED lamp pre-cures the UV external texture shower coating glue;
step five, demolding: tearing the texture membrane;
and step six, high-pressure forming, and secondary reinforcing by using a mercury lamp.
CN202211076646.9A 2022-09-05 2022-09-05 UV external texture spraying glue and application method thereof Pending CN115403996A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211076646.9A CN115403996A (en) 2022-09-05 2022-09-05 UV external texture spraying glue and application method thereof

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Application Number Priority Date Filing Date Title
CN202211076646.9A CN115403996A (en) 2022-09-05 2022-09-05 UV external texture spraying glue and application method thereof

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102925063A (en) * 2012-11-26 2013-02-13 临邑县鲁晶化工有限公司 Ultraviolet curing transfer glue
CN111334242A (en) * 2020-04-29 2020-06-26 东莞市贝特利新材料有限公司 Ultraviolet curing transfer adhesive for 3D molding and preparation method thereof
CN113858668A (en) * 2021-08-23 2021-12-31 通达(石狮)科技有限公司 Production process of composite board mobile phone rear cover with texture on front surface
CN115044301A (en) * 2022-06-29 2022-09-13 惠州市全胜德新材料有限公司 High-wear-resistance ultraviolet curing transfer adhesive for outer texture and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102925063A (en) * 2012-11-26 2013-02-13 临邑县鲁晶化工有限公司 Ultraviolet curing transfer glue
CN111334242A (en) * 2020-04-29 2020-06-26 东莞市贝特利新材料有限公司 Ultraviolet curing transfer adhesive for 3D molding and preparation method thereof
CN113858668A (en) * 2021-08-23 2021-12-31 通达(石狮)科技有限公司 Production process of composite board mobile phone rear cover with texture on front surface
CN115044301A (en) * 2022-06-29 2022-09-13 惠州市全胜德新材料有限公司 High-wear-resistance ultraviolet curing transfer adhesive for outer texture and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
余宗萍: "淋涂UV固化涂料的消光探讨" *
聂俊;肖鸣;何勇;: "光固化涂料研究进展" *

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Application publication date: 20221129

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