CN116218330B - Low-VOC (volatile organic compound) coating applied to mobile phone glass as well as preparation method and application thereof - Google Patents
Low-VOC (volatile organic compound) coating applied to mobile phone glass as well as preparation method and application thereof Download PDFInfo
- Publication number
- CN116218330B CN116218330B CN202310113645.5A CN202310113645A CN116218330B CN 116218330 B CN116218330 B CN 116218330B CN 202310113645 A CN202310113645 A CN 202310113645A CN 116218330 B CN116218330 B CN 116218330B
- Authority
- CN
- China
- Prior art keywords
- mobile phone
- phone glass
- low
- stirring
- voc coating
- 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.)
- Active
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 65
- 239000011248 coating agent Substances 0.000 title claims abstract description 63
- 239000011521 glass Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000012855 volatile organic compound Substances 0.000 title description 44
- 239000011347 resin Substances 0.000 claims abstract description 35
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 21
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims abstract description 13
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000843 powder Substances 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 10
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 9
- 230000008033 biological extinction Effects 0.000 claims abstract description 6
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 34
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000007921 spray Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 17
- 238000012360 testing method Methods 0.000 claims description 17
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 239000003085 diluting agent Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 7
- XLLIQLLCWZCATF-UHFFFAOYSA-N 2-methoxyethyl acetate Chemical compound COCCOC(C)=O XLLIQLLCWZCATF-UHFFFAOYSA-N 0.000 claims description 6
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims description 6
- 229920001225 polyester resin Polymers 0.000 claims description 5
- 239000004645 polyester resin Substances 0.000 claims description 5
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 229920000178 Acrylic resin Polymers 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 239000012258 stirred mixture Substances 0.000 claims description 3
- 239000002671 adjuvant Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000009987 spinning Methods 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 20
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 239000001038 titanium pigment Substances 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000004062 sedimentation Methods 0.000 abstract description 3
- 238000001179 sorption measurement Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 8
- 239000002245 particle Substances 0.000 description 6
- 238000005507 spraying Methods 0.000 description 5
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004533 oil dispersion Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/006—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character
- C03C17/008—Surface treatment of glass, not in the form of fibres or filaments, by coating with materials of composite character comprising a mixture of materials covered by two or more of the groups C03C17/02, C03C17/06, C03C17/22 and C03C17/28
- C03C17/009—Mixtures of organic and inorganic materials, e.g. ormosils and ormocers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/44—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the composition of the continuous phase
- C03C2217/445—Organic continuous phases
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/40—Coatings comprising at least one inhomogeneous layer
- C03C2217/43—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase
- C03C2217/46—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase
- C03C2217/47—Coatings comprising at least one inhomogeneous layer consisting of a dispersed phase in a continuous phase characterized by the dispersed phase consisting of a specific material
- C03C2217/475—Inorganic materials
- C03C2217/478—Silica
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
- C03C2217/78—Coatings specially designed to be durable, e.g. scratch-resistant
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/112—Deposition methods from solutions or suspensions by spraying
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Wood Science & Technology (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Composite Materials (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention particularly discloses a low VOC coating applied to mobile phone glass and a preparation method and application thereof. The coating comprises modified acrylic hyperbranched branched resin, a small amount of branched resin, a dispersing agent, titanium pigment, ethyl acetate, fumed silica, extinction powder, propylene glycol methyl ether acetate and an auxiliary agent. According to the invention, the modified acrylic hyperbranched branched resin is mixed with a small amount of branched resin, so that a compact three-dimensional grid structure can be formed, and the three-dimensional net structure with strong adsorption performance is formed in a system by utilizing the high specific surface area of the fumed silica, so that powder can be adsorbed in each three-dimensional grid unit, the VOC content in the paint can be effectively controlled, the stability of the paint is improved, the paint has stronger adhesive force, and the problems of sedimentation of titanium pigment and floating color and bloom of color paste in the color mixing process can be prevented.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to a low-VOC coating applied to mobile phone glass, a preparation method and application thereof.
Background
Along with the formal release of the national standard 'low-volatile organic compound content coating product technical requirement', the environment-friendly coating has positive effects in promoting the technical progress of the coating industry, popularizing the use of the environment-friendly coating, limiting and eliminating the coating product with high VOC (volatile organic compounds, volatile organic compound) content, improving the production and construction working environment, strengthening the environmental supervision and management and the like. After standard implementation, the method is expected to be beneficial to promoting transformation and upgrading of the coating industry and large-scale development of the coating industry, and improving the international competitiveness of domestic coating enterprises.
The solid content of the existing spraying coating applied to the mobile phone glass is generally between 40 and 50, and about 100 to 150 percent of diluent is required to be added for spraying, so that VOC exceeds 700g/L after dilution, VOC is easy to exceed standard, and the environment is not protected; the existing spraying paint of the mobile phone glass is generally prepared by adopting polyester resin, so that the chemical resistance is poor basically under the condition of ensuring the adhesive force, and a layer of cover base color needs to be added to meet the chemical resistance.
Disclosure of Invention
In order to solve the technical problems, the invention provides a low VOC coating applied to mobile phone glass, which comprises the following components in percentage by weight:
Wherein the solid content of the modified acrylic hyperbranched branched resin is 60%, and the branched resin with a small amount of branches is a sheet-shaped full solid resin.
Preferably, the modified acrylic hyperbranched branched resin is a mid-island formed NK-850A hydroxy acrylic resin.
Preferably, the branched chain resin with a small amount of branches is GK150 saturated polyester resin spun by east ocean.
Preferably, the titanium dioxide is rutile titanium dioxide, in particular DuPont Ti-Pure-R-900.
Preferably, the fumed silica is Desoxel R972.
Preferably, the matting powder is one of Nipsil E-1011, tosoh SILICA, japan or Grace lace SYLOIDC803, U.S.A.
Preferably, the adjuvant comprises a levelling agent.
The invention also provides a preparation method of the low VOC coating applied to the mobile phone glass, which is used for preparing the low VOC coating applied to the mobile phone glass and at least comprises the following steps:
S1, sequentially adding modified acrylic hyperbranched branched resin, a small amount of branched resin, a dispersing agent, butyl acetate and ethylene glycol methyl ether acetate into a reaction kettle, and stirring in the adding process until stirring is uniform, wherein the stirring speed is 800-1000r/min, and the stirring time is 5-10min;
S2, adding fumed silica and titanium dioxide, and stirring until stirring is uniform in the adding process, wherein the stirring speed is 800-1000r/min;
S3, dispersing the uniformly stirred mixture at a high speed until the mixture is uniformly dispersed, wherein the dispersing speed is 1000-1200r/min, and the dispersing time is 10-20min;
s4, cooling the dispersed mixture, grinding the cooled mixture until the grinding fineness is qualified, adding the extinction powder again, uniformly stirring, and performing a spray board test after the mixture fineness reaches the preset fineness at the stirring rotating speed of 800-1200 r/min;
S5, adding an auxiliary agent according to the test effect of the spray plate, uniformly stirring, and packaging until the spray plate is tested to be qualified, wherein the stirring speed is 800-1200r/min, so that the low-VOC coating applied to the mobile phone glass is obtained.
The invention also provides an application of the low VOC coating applied to the mobile phone glass, wherein the low VOC coating applied to the mobile phone glass or the prepared low VOC coating applied to the mobile phone glass is applied to electronic products, and the specific process is as follows: the low-VOC coating applied to the mobile phone glass is quantitatively mixed with the curing agent and the diluent, and then the uniformly mixed mixture is added into a spray gun to spray the coating on the mobile phone glass, wherein the weight part ratio of the low-VOC coating to the curing agent to the diluent is 100:5-8:45-55, and the diluent comprises 35-50% of ethyl acetate, 35-50% of butyl acetate and 10-30% of propylene glycol methyl ether acetate by weight percent.
Preferably, the curing agent is TAKENATETM D-110N from Mitsui chemical Co.
Compared with the prior art, the low-VOC coating applied to the mobile phone glass, the preparation method and the application thereof provided by the invention have the advantages that the modified acrylic hyperbranched branched resin and a small amount of branched resin are adopted and mixed, the mixed resin can form a compact three-dimensional grid structure, and then the three-dimensional grid structure with strong adsorption performance is formed in the system by utilizing the high specific surface area of the fumed silica, so that powder can be adsorbed in each three-dimensional grid unit, the VOC content in the coating can be effectively controlled, the stability of the coating is improved, the coating has stronger adhesive force, and the problems of sedimentation and color paste floating in the color mixing process can be prevented.
Drawings
FIG. 1 is a flow chart of a method for preparing a low VOC coating for mobile phone glass according to the present invention.
Detailed Description
In order to make the technical scheme of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
The low VOC coating applied to the mobile phone glass provided by the invention comprises the following components in percentage by weight:
Wherein the solid content of the modified acrylic hyperbranched branched resin is 60%, and the branched resin with a small amount of branches is a sheet-shaped full solid resin.
In the embodiment, the modified acrylic hyperbranched branched resin is NK-850A hydroxyl acrylic resin formed by medium islands, and the hydroxyl acrylic resin can provide good chemical resistance and water resistance for a paint film; the branched chain resin with a small amount of branches is GK150 saturated polyester resin spun by east ocean, and the saturated polyester resin can provide good adhesive force on mobile phone glass; the dispersing agent is deflocculating dispersing agent, and the dispersing agent is used for dispersing pigment and filler particles to the minimum particle size; the titanium dioxide is rutile titanium dioxide, in particular to DuPont Ti-Pure-R-900; the fumed silica is Degussa R972; the extinction powder is one of Nipsil E-1011 of Tosoh SILICA Co., ltd., japan or Grace lace SYLOIDC803 of America, wherein the particle size of the extinction powder is selected according to the paint feeling effect and the dyne value; the auxiliary agent comprises a leveling agent, such as byk333,333, which can improve the problem of oil dispersion caused by slight uncleanness of the surface of the factor material; meanwhile, the auxiliary agent also comprises other auxiliary agents besides the leveling agent, such as a dispersing agent (byk s) for controlling flocculation, which can effectively improve the aggregation problem of dust points and pigment fillers in the spraying process of the coating.
In the embodiment, the modified acrylic hyperbranched branched resin and a small amount of branched resin are adopted and mixed, the mixed resin can form a compact three-dimensional grid structure, and then the high specific surface area of the fumed silica is utilized to form a three-dimensional net structure with strong adsorption performance in the system, so that powder can be adsorbed in each three-dimensional grid unit, the VOC content in the paint can be effectively controlled, the stability of the paint is improved, the paint has stronger adhesive force, and the problems of sedimentation of titanium pigment and floating color of color paste in the color mixing process can be prevented.
As shown in fig. 1, the invention further provides a preparation method of the low-VOC paint applied to the mobile phone glass, which is used for preparing the low-VOC paint applied to the mobile phone glass, and at least comprises the following steps:
S1, sequentially adding modified acrylic hyperbranched branched resin, a small amount of branched resin, a dispersing agent, butyl acetate and ethylene glycol methyl ether acetate into a reaction kettle, and stirring in the adding process until stirring is uniform, wherein the stirring speed is 800-1000r/min, and the stirring time is 5-10min;
in this step, the dispersant is a deflocculating dispersant, which functions to disperse the pigment filler particles to a minimum particle size.
S2, adding fumed silica and titanium dioxide, and stirring until stirring is uniform in the adding process, wherein the stirring speed is 800-1000r/min;
S3, dispersing the uniformly stirred mixture at a high speed until the mixture is uniformly dispersed, wherein the dispersing speed is 1000-1200r/min, and the dispersing time is 10-20min;
s4, cooling the dispersed mixture, grinding the cooled mixture until the grinding fineness is qualified, adding the extinction powder again, uniformly stirring, and performing a spray board test after the mixture fineness reaches the preset fineness at the stirring rotating speed of 800-1200 r/min;
in the step, the grinding fineness of the cooled mixture is less than or equal to 15 mu m, and the mixture is qualified; the preset fineness value before the spray plate test is 20 μm.
S5, adding an auxiliary agent according to the test effect of the spray plate, uniformly stirring, and packaging until the spray plate is tested to be qualified, wherein the stirring speed is 800-1200r/min, so that the low-VOC coating applied to the mobile phone glass is obtained.
In this embodiment, the spray board test effect is determined based on whether oil dispersion exists and whether particles are generated, and the spray board test effect can be obtained by spraying after continuous stirring or adding a little more auxiliary agent, wherein the total amount of the auxiliary agent is not more than 1% of the total amount. The specific technical effects of the low VOC coating for mobile phone glass prepared by the preparation method are detailed above and will not be repeated here.
The invention also provides an application of the low VOC coating applied to the mobile phone glass, wherein the low VOC coating applied to the mobile phone glass or the prepared low VOC coating applied to the mobile phone glass is applied to the mobile phone glass, and the specific process is as follows: the low-VOC coating applied to the mobile phone glass is quantitatively mixed with the curing agent and the diluent, and then the uniformly mixed mixture is added into a spray gun to spray the coating on the mobile phone glass, wherein the weight part ratio of the low-VOC coating to the curing agent to the diluent is 100:5-8:45-55, and the diluent comprises 35-50% of ethyl acetate, 35-50% of butyl acetate and 10-30% of propylene glycol methyl ether acetate by weight percent.
In this example, the curing agent is TAKENATETM D-110N from Mitsui chemical Co. The low-VOC coating applied to the mobile phone glass or the prepared low-VOC coating applied to the mobile phone glass is applied to a cover plate of the mobile phone glass back cover, which needs to be decorated by color matching, and has excellent chemical resistance, water resistance and adhesion performance under the condition of meeting the low VOC.
In order to further understand the working principle and the effective technical effects of the present invention, the following description is made with a series of specific embodiments based on the preparation method of the low VOC coating applied to the mobile phone glass and the application method of the low VOC coating applied to the mobile phone glass in the present invention.
In this example, 5 examples and 1 comparative example are described, and table 1 shows the weight part ratio table of each raw material in 5 examples and 1 comparative example, and table 2 shows the test result table of the paint performance prepared by the raw material ratio in 5 examples and 1 comparative example.
Table 1 weight part ratio table of each raw material in examples and comparative examples
The low VOC coating applied to the mobile phone glass prepared in the examples 1-5 and the comparative example 1 is coated on a cover plate of the mobile phone glass back cover, which needs color matching decoration, based on the application method of the low VOC coating applied to the mobile phone glass.
Table 2 table of the results of the performance test of the coatings prepared by the raw material ratios of examples and comparative examples
In Table 2, fineness test is referred to GB/T1724-1979 paint fineness determination method; OD value test reference GB/T1726-1979 (89) coating hiding power assay; adhesion test criteria reference GBT1720-79 paint film adhesion assay; film thickness testing instrument: mitutoyo Sanfeng flake micrometer No.293-240-30, japan; alcohol resistance test instrument: alcohol abrasion resistance testing machine.
As can be seen from Table 2, the comparative examples 1 to 5 have a higher covering power than the comparative examples, because the titanium pigment content of the examples is improved; from the test results of examples 1-5, as the content of the modified acrylic hyperbranched branched resin in the whole system is improved, the OD value and the adhesive force of a paint film of the paint are improved, but the uniformity of the paint film is reduced, and the main reason is that the modified acrylic hyperbranched branched resin can gather more powder so as to improve the OD value of the paint film; meanwhile, the modified acrylic hyperbranched branched resin has more contact points with materials to form more chemical bonds, so that the adhesion performance of a paint film is improved; because the modified acrylic hyperbranched branched resin has uneven structural distribution, more titanium dioxide is generated in partial areas, and less titanium dioxide is generated in partial areas, so that the uniformity degree of a paint film is influenced, and therefore, the embodiment 1 is the best performance ratio.
In conclusion, the low VOC coating applied to the mobile phone glass provided by the invention has excellent chemical resistance, water resistance and adhesion while meeting the low VOC requirement.
The low VOC coating applied to the mobile phone glass, the preparation method and the application thereof are described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the core concepts of the invention. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (8)
1. The low VOC coating for the mobile phone glass is characterized by comprising the following components in percentage by weight:
The solid content of the modified acrylic hyperbranched branched resin is 60%, a small amount of branched resin is flaky full solid resin, the modified acrylic hyperbranched branched resin is NK-850A hydroxyl acrylic resin formed by medium island formation, and the small amount of branched resin is GK150 saturated polyester resin of east ocean spinning.
2. The low VOC coating for glass for mobile phones of claim 1, wherein the titanium dioxide is rutile titanium dioxide, dupont Ti-Pure-R-900.
3. The low VOC coating for mobile phone glass according to claim 2, wherein the fumed silica is decurser R972.
4. The low VOC coating for mobile phone glass according to claim 3, wherein the matting powder is one of Nipsil E-1011, of SILICA corporation, eastern japan or GRACE lace SYLOIDC 803.
5. The low VOC coating for mobile phone glass according to claim 4, wherein the adjuvant comprises a leveling agent.
6. A method for preparing a low VOC coating for mobile phone glass, characterized in that the method is used for preparing the low VOC coating for mobile phone glass according to any one of claims 1-5, at least comprising the following steps:
S1, sequentially adding modified acrylic hyperbranched branched resin, a small amount of branched resin, a dispersing agent, butyl acetate and ethylene glycol methyl ether acetate into a reaction kettle, and stirring in the adding process until stirring is uniform, wherein the stirring speed is 800-1000r/min, and the stirring time is 5-10min;
S2, adding fumed silica and titanium dioxide, and stirring until stirring is uniform in the adding process, wherein the stirring speed is 800-1000r/min;
S3, dispersing the uniformly stirred mixture at a high speed until the mixture is uniformly dispersed, wherein the dispersing speed is 1000-1200r/min, and the dispersing time is 10-20min;
s4, cooling the dispersed mixture, grinding the cooled mixture until the grinding fineness is qualified, adding the extinction powder again, uniformly stirring, and performing a spray board test after the mixture fineness reaches the preset fineness at the stirring rotating speed of 800-1200 r/min;
S5, adding an auxiliary agent according to the test effect of the spray plate, uniformly stirring, and packaging until the spray plate is tested to be qualified, wherein the stirring speed is 800-1200r/min, so that the low-VOC coating applied to the mobile phone glass is obtained.
7. Application of the low-VOC coating applied to the mobile phone glass, which is characterized in that the low-VOC coating applied to the mobile phone glass or the low-VOC coating applied to the mobile phone glass prepared in the method of claim 6 is applied to the mobile phone glass, and the specific process is as follows: the low-VOC coating applied to the mobile phone glass is quantitatively mixed with the curing agent and the diluent, and then the uniformly mixed mixture is added into a spray gun to spray the coating on the mobile phone glass, wherein the weight part ratio of the low-VOC coating to the curing agent to the diluent is 100:5-8:45-55, and the diluent comprises 35-50% of ethyl acetate, 35-50% of butyl acetate and 10-30% of propylene glycol methyl ether acetate by weight percent.
8. The use of a low VOC coating for mobile phone glass according to claim 7, wherein the curing agent is TAKENATETM D-110N from mitsubishi chemical corporation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310113645.5A CN116218330B (en) | 2023-02-15 | 2023-02-15 | Low-VOC (volatile organic compound) coating applied to mobile phone glass as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310113645.5A CN116218330B (en) | 2023-02-15 | 2023-02-15 | Low-VOC (volatile organic compound) coating applied to mobile phone glass as well as preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116218330A CN116218330A (en) | 2023-06-06 |
| CN116218330B true CN116218330B (en) | 2024-05-21 |
Family
ID=86576274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310113645.5A Active CN116218330B (en) | 2023-02-15 | 2023-02-15 | Low-VOC (volatile organic compound) coating applied to mobile phone glass as well as preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116218330B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964399A (en) * | 2019-12-13 | 2020-04-07 | 湖南太子化工涂料有限公司 | Nano composite coating and preparation method thereof |
| CN114133845A (en) * | 2021-12-15 | 2022-03-04 | 上海立邦长润发涂料有限公司 | LED spraying white primer and preparation method thereof |
| CN115044263A (en) * | 2022-07-12 | 2022-09-13 | 浙江天女集团制漆有限公司 | Photoaging-resistant hydroxyl acrylic resin coating and preparation method thereof |
| CN115637079A (en) * | 2021-07-19 | 2023-01-24 | 广州立邦涂料有限公司 | Low-VOC amino baking varnish composition, preparation method and application thereof |
-
2023
- 2023-02-15 CN CN202310113645.5A patent/CN116218330B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110964399A (en) * | 2019-12-13 | 2020-04-07 | 湖南太子化工涂料有限公司 | Nano composite coating and preparation method thereof |
| CN115637079A (en) * | 2021-07-19 | 2023-01-24 | 广州立邦涂料有限公司 | Low-VOC amino baking varnish composition, preparation method and application thereof |
| CN114133845A (en) * | 2021-12-15 | 2022-03-04 | 上海立邦长润发涂料有限公司 | LED spraying white primer and preparation method thereof |
| CN115044263A (en) * | 2022-07-12 | 2022-09-13 | 浙江天女集团制漆有限公司 | Photoaging-resistant hydroxyl acrylic resin coating and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116218330A (en) | 2023-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105820737B (en) | A kind of automobile using aqueous double-component floating coating of excellent performance and preparation method thereof | |
| CN101191029B (en) | Primer composition for metal substrate and its preparation method and multilayer coat | |
| CN101775245B (en) | Multifunctional putty | |
| CN106497377A (en) | Two-component waterborne polyurethane industrial paint with excellent physical properties and preparation method thereof | |
| CN103483995B (en) | A kind of PE gloss varnish and preparation method thereof | |
| CN103480557B (en) | Environment-friendly spraying method for construction | |
| CN106349920A (en) | Environment-friendly curtaining odor-removing PU matted varnish and preparation method thereof | |
| CN110028862A (en) | A kind of compound super hydrophobic coating of modified Nano and preparation method thereof | |
| CN109735193A (en) | Resistance to long-acting heavy-duty aqueous epoxy zinc-enriched paint based on graphene and preparation method thereof | |
| CN103409059B (en) | A kind of Polyurethane crack lacquer and preparation method thereof | |
| CN107903778A (en) | A kind of PU showerings matte varnish and preparation method thereof | |
| CN104497814A (en) | Aldehyde-ketone resin modified unsaturated polyester primer and preparation method thereof | |
| CN116218330B (en) | Low-VOC (volatile organic compound) coating applied to mobile phone glass as well as preparation method and application thereof | |
| CN110003746A (en) | A kind of mono-component aqueous varnish of high rigidity and preparation method thereof | |
| CN112063274B (en) | Unsaturated polyester primer and preparation method thereof | |
| CN104497840A (en) | Sanding-free PU (polyurethane) high-fullness white-finish varnish applicable to melamine substrates and preparation method thereof | |
| CN111363407A (en) | Printing ink for 3.5D high-tensile mobile phone composite board and application | |
| CN103725144A (en) | Anticorrosive paint and preparation method thereof | |
| CN105885696A (en) | Aqueous coating for electrostatic spraying | |
| CN115304976A (en) | Environment-friendly exterior wall texture coating with self-cleaning function and preparation method thereof | |
| CN107573840A (en) | A kind of special high solid low VOC polyurethane lacquers of woodenware and its preparation and application | |
| CN115491115A (en) | Water-based bi-component graphene solid-color paint for electrostatic coating | |
| CN109161323A (en) | A kind of aqueous thick-film type is from poly- paint of dry two-component third and preparation method thereof | |
| CN108690424A (en) | A kind of Vehicular multifunctional water paint and preparation method thereof | |
| CN112080195A (en) | Wool felt resistant two-component water-based paint 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |