CN116875096A - High impact-resistant inorganic coating and preparation method thereof - Google Patents
High impact-resistant inorganic coating and preparation method thereof Download PDFInfo
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- 238000000576 coating method Methods 0.000 title claims abstract description 91
- 239000011248 coating agent Substances 0.000 title claims abstract description 82
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 71
- 239000000843 powder Substances 0.000 claims abstract description 45
- 239000011787 zinc oxide Substances 0.000 claims abstract description 37
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000049 pigment Substances 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 6
- 235000014692 zinc oxide Nutrition 0.000 claims description 36
- 239000000463 material Substances 0.000 claims description 18
- 239000006255 coating slurry Substances 0.000 claims description 16
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 12
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 239000006121 base glass Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- 238000005496 tempering Methods 0.000 claims description 7
- 239000005995 Aluminium silicate Substances 0.000 claims description 6
- 229910052656 albite Inorganic materials 0.000 claims description 6
- 235000012211 aluminium silicate Nutrition 0.000 claims description 6
- 229910021538 borax Inorganic materials 0.000 claims description 6
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000395 magnesium oxide Substances 0.000 claims description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 6
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 6
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 6
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- 239000011265 semifinished product Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000004328 sodium tetraborate Substances 0.000 claims description 6
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 6
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 6
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 4
- 238000007650 screen-printing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- GXDVEXJTVGRLNW-UHFFFAOYSA-N [Cr].[Cu] Chemical compound [Cr].[Cu] GXDVEXJTVGRLNW-UHFFFAOYSA-N 0.000 claims description 3
- 235000010338 boric acid Nutrition 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 claims description 3
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 3
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 3
- 239000005457 ice water Substances 0.000 claims description 3
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 3
- 235000010215 titanium dioxide Nutrition 0.000 claims description 3
- 239000012463 white pigment Substances 0.000 claims description 3
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 claims 2
- 239000011521 glass Substances 0.000 abstract description 15
- 239000002253 acid Substances 0.000 abstract description 14
- 230000000052 comparative effect Effects 0.000 description 48
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 238000004040 coloring Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XUMBMVFBXHLACL-UHFFFAOYSA-N Melanin Chemical compound O=C1C(=O)C(C2=CNC3=C(C(C(=O)C4=C32)=O)C)=C2C4=CNC2=C1C XUMBMVFBXHLACL-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000011812 mixed powder Substances 0.000 description 2
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- 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
- 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
- C09D7/66—Additives characterised by particle size
- C09D7/67—Particle size smaller than 100 nm
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Abstract
The invention discloses a high impact resistant inorganic coating and a preparation method thereof, belonging to the technical field of inorganic coatings, wherein the inorganic coating comprises the following components in parts by weight: 51-68 parts of low-temperature inorganic powder, 1-4 parts of flaky alumina, 2-9 parts of nano zinc oxide and 25-43 parts of pigment. The invention can solve the problems of poor impact resistance, poor brightness of the surface of the coating and poor acid resistance of the inorganic coating; meanwhile, the problems of harmful raw materials to the environment, high preparation cost and the like are solved, the preparation method is efficient and environment-friendly, the cost is low, the impact resistance of the inorganic coating is effectively improved, and the method is widely applied to the fields of high impact resistance such as buildings, household appliances, automobile glass and the like.
Description
Technical Field
The invention relates to a high impact resistant inorganic coating and a preparation method thereof, belonging to the technical field of inorganic coatings.
Background
The inorganic coating is formed by uniformly attaching the slurry to the surface of an object by spraying, printing or other means, and firmly fixing the slurry to the surface of the object by high temperature, infrared or tempering and the like. The glass is printed on the glass in a screen printing mode and tempered at 680-720 ℃ to be melted with the matrix glass into a whole, so that the glass has the functions of decorating and covering objects on the rear side of the glass, has other special performances, and is widely applied to the fields of buildings, household appliances and automobile glass.
One of the main components of the high impact-resistant inorganic coating is low-temperature inorganic powder, and the pigment, the additive and the film forming agent are matched for use. The film forming agent is used for uniformly dispersing the low-temperature inorganic powder into slurry, coating the slurry on the base glass, gradually volatilizing the film forming agent in the toughening process, and finally firmly bonding the pigment, the additive and the like on the base glass by the low-temperature inorganic powder to form an inorganic coating. At this stage, the low temperature inorganic powder needs to have a relatively low temperature relative to the base glass to bond other inorganic powders during tempering and to present a relatively bright surface. The low-temperature inorganic powder has low temperature and good surface brightness of the coating, but has poor acid resistance and impact resistance, and cannot meet the impact requirement; the low-temperature inorganic powder has over high temperature, the surface of the coating is matt, the antifouling capacity is poor, the color is dark, and the required aesthetic property cannot be achieved. In addition, more impact-resistant inorganic coatings exist at the present stage, but many coating formulas contain halogen and lead which are harmful to the environment, bismuth oxide and the like with high cost, and most coatings with good performance have poor impact resistance. Therefore, the invention provides the high impact-resistant inorganic coating and the preparation method thereof, so that the surface of the coating has good brightness, good acid resistance and higher impact resistance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the high impact resistance inorganic coating and the preparation method thereof, which can solve the problems of poor impact resistance, poor brightness of the surface of the coating and poor acid resistance of the inorganic coating; meanwhile, the problems of harmful raw materials to the environment, high preparation cost and the like are solved.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the high impact resistance inorganic coating comprises the following components in parts by weight: 51-68 parts of low-temperature inorganic powder, 1-4 parts of flaky alumina, 2-9 parts of nano zinc oxide and 25-43 parts of pigment.
Preferably, the softening point of the low-temperature inorganic powder is 450-550 ℃ and the expansion coefficient is 7-8 multiplied by 10 -6 /℃。
Preferably, the low-temperature inorganic powder comprises the following components in parts by weight: 9-41 parts of quartz, 0-21 parts of kaolin, 0-28 parts of borax, 1-17 parts of boric acid, 0-17 parts of zinc oxide, 1-6 parts of zirconium oxide, 1-5 parts of magnesium oxide, 1-6 parts of barium oxide, 2-37 parts of albite, 0-14 parts of potassium oxide, 1-4 parts of aluminum oxide and 0-4 parts of titanium oxide.
Preferably, the radial dimension of the flaky alumina is 5-50 μm and the thickness is 100-500 nm.
Preferably, the particle size of the nano zinc oxide is 10-500 nm.
Preferably, the coloring material is a black coloring material or a white coloring material.
Preferably, the black pigment is one or more of manganese iron black, iron oxide black, copper chromium black, iron chromium black, cobalt black and carbon black.
Preferably, the white pigment is one or more of titanium white, zinc white and lithopone.
The invention also provides a preparation method of the high impact-resistant inorganic coating, which comprises the following steps:
(1) Preparing low-temperature inorganic powder: mixing quartz, kaolin, borax, boric acid, zinc oxide, zirconium oxide, magnesium oxide, barium oxide, albite, potassium oxide, aluminum oxide and titanium oxide according to the raw material composition, heating and roasting for 60min to form homogenized and washed molten liquid, placing the molten liquid into deionized ice water for water quenching to form inorganic slag, wet ball grinding for 3h, drying and screening to obtain low-temperature inorganic powder;
(2) Preparing inorganic coating slurry: mixing low-temperature inorganic powder, pigment, nano zinc oxide, flaky alumina and a film forming agent according to raw material components to form a mixed material, and sequentially carrying out coarse grinding and grinding on the mixed material to obtain inorganic coating slurry;
(3) And (3) preparing an inorganic coating: printing the inorganic coating slurry on the base glass in a screen printing mode, firstly drying to form an inorganic coating semi-finished product, and then tempering the inorganic coating semi-finished product for 100-400 s to obtain the high impact resistance inorganic coating.
Preferably, in step (1), the calcination temperature is 1000 to 1300 ℃.
Preferably, in step (1), the mesh screen is 300 mesh.
Preferably, in the step (3), the thickness of the base glass is 2 to 8mm.
Preferably, in the step (3), the drying temperature is 150-220 ℃, and the tempering temperature is 680-720 ℃.
The invention has the beneficial effects that:
1. the low-temperature inorganic powder provided by the invention has a lower softening point and expansion coefficient, and even if pigments with different expansion coefficients are added, the whole inorganic coating has a proper expansion coefficient, so that the mechanical strength of the inorganic coating is ensured.
2. The added nano zinc oxide has extremely small granularity and lower expansion coefficient, and further improves the brightness of the coating.
3. The added flaky alumina can greatly improve the mechanical strength of the coating, maintain a smaller expansion coefficient, and have a unique flaky structure in the impact process of the steel ball, so that the flaky alumina can be embedded into an inorganic coating to prevent crack growth, and further improve the impact resistance height of the inorganic coating.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The experimental methods in the following examples are all conventional methods unless otherwise specified, and the experimental reagents and materials involved are all conventional chemical reagents and materials unless otherwise specified.
The high impact resistant inorganic coating comprises the following components in parts by weight: 51-68 parts of low-temperature inorganic powder, 1-4 parts of flaky alumina, 2-9 parts of nano zinc oxide and 25-43 parts of pigment; wherein the softening point of the low-temperature inorganic powder is 450-550 ℃ and the expansion coefficient is 7-8 multiplied by 10 -6 a/DEG C; the low-temperature inorganic powder comprises the following components in parts by weight: 9-41 parts of quartz, 0-21 parts of kaolin, 0-28 parts of borax, 1-17 parts of boric acid, 0-17 parts of zinc oxide, 1-6 parts of zirconium oxide, 1-5 parts of magnesium oxide, 1-6 parts of barium oxide, 2-37 parts of albite, 0-14 parts of potassium oxide, 1-4 parts of aluminum oxide and 0-4 parts of titanium oxide; the coloring material is black coloring material or white coloring material.
The invention provides a preparation method of a high impact resistance inorganic coating, which comprises the following specific steps:
(1) Preparing low-temperature inorganic powder: according to the raw material composition, quartz, kaolin, borax, boric acid, zinc oxide, zirconium oxide, magnesium oxide, barium oxide, albite, potassium oxide, aluminum oxide and titanium oxide are accurately weighed and uniformly mixed to form mixed powder, after the muffle furnace temperature is increased to the corresponding firing temperature, the mixed powder is put into the muffle furnace and fired for 60 minutes at the corresponding firing temperature, after the solution is homogenized and clarified, uniform solution is formed, the solution is poured into deionized ice water to be water quenched to form inorganic slag, a high-speed ball mill is used, the inorganic slag is wet-ground for 3 hours by adding water, and then the inorganic slag is dried and passes through a 300-mesh sieve to obtain low-temperature inorganic powder;
(2) Preparing inorganic coating slurry: according to the raw material composition, accurately weighing low-temperature inorganic powder, pigment, nano zinc oxide, flaky alumina and film forming agent, uniformly stirring to form a mixed material, carrying out coarse grinding on the mixed material by a sand mill, and carrying out fine grinding by a three-roller mill to obtain the inorganic coating slurry.
(3) And (3) preparing an inorganic coating: printing the inorganic coating slurry on original glass with the thickness of 2-8 mm in a screen printing mode, drying in a high-temperature drying channel at 150-220 ℃ to obtain an inorganic coating semi-finished product, and tempering the glass printed with the inorganic coating semi-finished product at 680-720 ℃ for 100-400 s to obtain the high-impact-resistance inorganic coating.
Preparation of low-temperature inorganic powder
According to the composition, the formula in parts by weight and the firing temperature in the following table 1, according to the preparation method of the low-temperature inorganic powder of the invention, low-temperature inorganic powders IP-01, IP-02, IP-0103, IP-04 and IP-05 are obtained.
TABLE 1
The various performance parameters of the low temperature inorganic powders IP-01, IP-02, IP-0103, IP-04, IP-05 were tested as shown in Table 2 below.
TABLE 2
| IP-01 | IP-02 | IP-03 | IP-04 | IP-05 | |
| Softening temperature range (. Degree. C.) | 496～501 | 530～535 | 461～466 | 477～482 | 434～439 |
| Coefficient of expansion (. Times.10) -6 /℃) | 7.02 | 7.29 | 7.86 | 7.35 | 8.44 |
Examples 1 to 4 and comparative examples 1 to 6
According to the preparation method of the inorganic coating slurries of the present invention, the inorganic coating slurries of examples 1 to 4 and comparative examples 1 to 6 were obtained according to the compositions and contents shown in the following table 3, wherein: the black pigment is one or more of manganese iron black, iron oxide black, copper chromium black, iron chromium black, cobalt black and carbon black; according to the preparation method of the inorganic coating slurry of the present invention, the radial dimension of the flaky alumina is 5-50 μm and the thickness is 100-500 nm, the alumina used in comparative example 5 is spherical alumina, the particle diameter is 100-500 nm, the zinc oxide used in comparative example 6 is micrometer zinc oxide, and the particle diameter is 0.5-2 μm.
TABLE 3 Table 3
Examples 5 to 8 and comparative examples 7 to 12
According to the preparation method of the inorganic coating slurries of the present invention, the inorganic coating slurries of examples 1 to 4 and comparative examples 1 to 6 were obtained according to the compositions and contents shown in the following table 4, wherein: the white pigment is one or more of titanium white, zinc white and lithopone; according to the preparation method of the inorganic coating slurry of the present invention, the radial dimension of the flaky alumina is 5-50 μm and the thickness is 100-500 nm, the alumina used in comparative example 5 is spherical alumina, the particle diameter is 100-500 nm, the zinc oxide used in comparative example 6 is micrometer zinc oxide, and the particle diameter is 0.5-2 μm.
TABLE 4 Table 4
Examples 1 to 8 and comparative examples 1 to 12
Inorganic coating slurries prepared in examples 1 to 8 and comparative examples 1 to 12 according to the preparation method of the inorganic coating layer of the present invention, inorganic coating layers corresponding to examples 1 to 8 and comparative examples 1 to 12 were obtained, and 10 parts of each of the inorganic coating layers corresponding to examples 1 to 8 and comparative examples 1 to 12 was tested.
1. Gloss test: the coating surfaces of 1 part each of the inorganic coatings corresponding to examples 1 to 48 and comparative examples 1 to 5 were tested by a gloss meter (60 °).
2. Acid resistance test: 1 part each of the inorganic coatings corresponding to examples 1 to 8 and comparative examples 1 to 5 was immersed in 3.7% HCl at room temperature for 30 minutes, and each of the corresponding 1 part of the samples was compared with each other without immersing HCl.
3. Impact performance layer test: 8 parts of each of the inorganic coatings corresponding to examples 1 to 8 and comparative examples 1 to 4 are respectively placed on a steel frame with a rubber pad, a 500g steel ball is used for impacting the center point position of the glass surface, the impact is started from the height of 0.1m from the glass, the impact is continued by increasing the height by 0.1m when the impact is not broken once, the impact is continued until the glass is broken, and the height through which at least 6 pieces of 8 pieces of glass can pass is the impact-resistant height of the coating.
1. The properties of the corresponding inorganic coatings of examples 1 to 4 and comparative examples 1 to 6 are shown in Table 5 below.
TABLE 5
As can be seen from Table 5 above, the inorganic powders of examples 1 to 4 according to the present invention have softening temperatures and expansion coefficients within suitable ranges, and the nano zinc oxide and the flake aluminum oxide are added in different amounts according to the given proportions according to the present invention, and the inorganic coating to which the melanin is added has an impact resistance of not less than 1.5m, has a surface gloss superior to 30, has a bright surface, is free from discoloration after hydrochloric acid immersion, and has good acid resistance, as compared with comparative examples 1 to 6.
Specifically, the low-temperature inorganic powders of comparative example 1 and example 3 are different in proportion, but both have relatively low softening temperatures, and under the condition that the adding proportion of the inorganic powders is consistent, the inorganic powders of comparative example 1 or comparative example 7 cannot have good impact resistance effect due to the fact that the expansion coefficient of the inorganic powders of IP-05 is larger, so that the impact resistance height and acid resistance of the inorganic coating of comparative example 1 or comparative example 7 are obviously reduced, on the basis, the adding amount of alumina is increased in comparative example 2, the impact resistance and acid resistance of the inorganic coating of comparative example 2 are obviously improved, and the surface glossiness of the coating is poor.
Comparative example 3 the inorganic coating material of comparative example 1, with the nano zinc oxide removed, had a slightly reduced impact resistance but not a significant amount, indicating that zinc oxide provided a portion of the impact resistance, but the overall inorganic coating surface gloss was significantly reduced, indicating that the addition of nano zinc oxide contributed more to the coating surface brightness of the inorganic coating.
Comparative example 4 the inorganic coating of comparative example 4, compared to example 1, had a slight decrease in acid resistance and a substantial decrease in impact resistance, but was still relatively slightly higher, indicating that IP-01 having the appropriate expansion coefficient had a certain impact resistance, but the addition of the flake alumina greatly improved its impact resistance.
Comparative example 5 compared with example 1, the inorganic coating of comparative example 5 adopts spherical alumina, which cannot maintain high impact resistance, and the spherical alumina has high melting temperature and large granularity, which affects the heating and leveling of other local powder materials, resulting in poor glaze gloss.
Comparative example 6 compared with example 1, the inorganic coating of comparative example 5 also cannot maintain higher impact resistance due to the adoption of the micron zinc oxide, and the glaze gloss is poor due to the fact that the micron zinc oxide has high melting temperature and large granularity and affects the heating and leveling of other local powder materials.
2. The properties of the corresponding inorganic coatings of examples 5 to 8 and comparative examples 7 to 12 are shown in Table 6 below.
TABLE 6
As can be seen from Table 6 above, the inorganic powders of examples 1 to 4 according to the present invention have softening temperatures and expansion coefficients within suitable ranges, and the nano zinc oxide and the flake aluminum oxide are added in different amounts according to the given proportions according to the present invention, and the white pigment-added inorganic coating of the present invention has an impact resistance height of not less than 1.7m, has a surface gloss superior to 20, is free from pulverization after hydrochloric acid immersion, and has a good acid resistance, as compared with comparative examples 7 to 12.
Specifically, the low-temperature inorganic powders of comparative example 7 are different in proportion from that of example 7, but both have relatively low softening temperatures, and under the condition that the proportion of the inorganic powders added is consistent, the inorganic powders of comparative example 7 cannot have good impact resistance effect due to the fact that the expansion coefficient of the inorganic powders of IP-05 is larger, so that the impact resistance height and acid resistance of the inorganic coating of comparative example 7 are obviously reduced, on the basis, the addition amount of alumina is increased in comparative example 2 or comparative example 8, the impact resistance and acid resistance of the inorganic coating of comparative example 8 are obviously improved, and the surface gloss of the coating is poor.
Comparative example 9 the inorganic coating material of comparative example 9, with the nano zinc oxide removed, had a slightly reduced impact resistance but not a significant magnitude, indicating that zinc oxide provided a portion of the impact resistance effect, but the overall inorganic coating surface gloss was significantly reduced, indicating that the addition of nano zinc oxide contributed more to the coating surface brightness of the inorganic coating.
Comparative example 10 the inorganic coating of comparative example 4, compared to example 5, had a slight decrease in acid resistance and a substantial decrease in impact resistance, but was still relatively slightly higher, indicating that IP-01 having the appropriate expansion coefficient had a certain impact resistance, but the addition of the flake alumina greatly improved its impact resistance.
Comparative example 11 compared with example 5, the inorganic coating of comparative example 11 uses spherical alumina, which cannot maintain its high impact resistance, and the spherical alumina has high melting temperature and large particle size, which affects the heating and leveling of other powder locally, resulting in poor glaze gloss.
Comparative example 12 in comparison with example 5, the inorganic coating of comparative example 12 also cannot maintain its higher impact resistance due to the use of micro zinc oxide, and the micro zinc oxide has a high melting temperature and a large particle size, which affects the heating and leveling of other powders locally, resulting in poor glaze gloss.
In conclusion, the low-temperature inorganic powder prepared by the method has relatively low expansion coefficient, and the addition of the flaky alumina and the nano zinc oxide further reduces the expansion coefficient of the coating and increases the matching degree of the coating and the matrix glass; the flaky alumina has higher hardness and mechanical strength, and the unique appearance of the flaky alumina prevents crack growth in the impact process; the nano zinc oxide greatly increases the glossiness of the inorganic coating. The preparation process is efficient and environment-friendly, has low cost, can effectively ensure the acid resistance of the inorganic coating, has excellent surface brightness of the coating, effectively improves the shock resistance of the inorganic coating, and can meet the requirement that the glass is not broken after being impacted by 500g steel balls at a height of at least 1.5m after the inorganic coating is printed and tempered.
Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present invention and not for limiting the technical solution of the present invention, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the present invention may be modified or equivalently replaced without departing from the spirit and scope of the present invention, and any modification or partial replacement thereof should be included in the scope of the claims of the present invention.
Claims (10)
1. The high impact resistance inorganic coating is characterized by comprising the following components in parts by weight: 51-68 parts of low-temperature inorganic powder, 1-4 parts of flaky alumina, 2-9 parts of nano zinc oxide and 25-43 parts of pigment.
2. The high impact inorganic coating according to claim 1, wherein the low temperature inorganic powder has a softening point of 450 to 550 ℃ and an expansion coefficient of 7 to 8 x 10 -6 /℃。
3. The high impact inorganic coating according to claim 1, wherein the low temperature inorganic powder comprises the following components in parts by weight: 9-41 parts of quartz, 0-21 parts of kaolin, 0-28 parts of borax, 1-17 parts of boric acid, 0-17 parts of zinc oxide, 1-6 parts of zirconium oxide, 1-5 parts of magnesium oxide, 1-6 parts of barium oxide, 2-37 parts of albite, 0-14 parts of potassium oxide, 1-4 parts of aluminum oxide and 0-4 parts of titanium oxide.
4. The high impact inorganic coating according to claim 1, wherein the radial dimension of the flaky alumina is 5-50 μm and the thickness is 100-500 nm; the particle size of the nano zinc oxide is 10-500 nm.
5. A high impact inorganic coating according to claim 1, wherein the colorant is a black colorant or a white colorant.
6. The high impact inorganic coating according to claim 5, wherein the black pigment is one or more of manganese iron black, iron oxide black, copper chromium black, iron chromium black, cobalt black, and carbon black.
7. The high impact inorganic coating according to claim 5, wherein the white pigment is one or more of titanium white, zinc white, lithopone.
8. A process for the preparation of a high impact resistant inorganic coating according to any one of claims 1 to 7, characterized in that it comprises the following steps:
(1) Preparing low-temperature inorganic powder: mixing quartz, kaolin, borax, boric acid, zinc oxide, zirconium oxide, magnesium oxide, barium oxide, albite, potassium oxide, aluminum oxide and titanium oxide according to the raw material composition, heating and roasting for 60min to form homogenized and washed molten liquid, placing the molten liquid into deionized ice water for water quenching to form inorganic slag, wet ball grinding for 3h, drying and screening to obtain low-temperature inorganic powder;
(2) Preparing inorganic coating slurry: mixing low-temperature inorganic powder, pigment, nano zinc oxide, flaky alumina and a film forming agent according to raw material components to form a mixed material, and sequentially carrying out coarse grinding and grinding on the mixed material to obtain inorganic coating slurry;
(3) And (3) preparing an inorganic coating: printing the inorganic coating slurry on the base glass in a screen printing mode, firstly drying to form an inorganic coating semi-finished product, and then tempering the inorganic coating semi-finished product for 100-400 s to obtain the high impact resistance inorganic coating.
9. The method for producing a high impact-resistant inorganic coating according to claim 8, wherein in the step (1), the baking temperature is 1000 to 1300 ℃; the mesh screen was 300 mesh.
10. The method for producing a high impact-resistant inorganic coating according to claim 8, wherein in the step (3), the thickness of the base glass is 2 to 8mm; the drying temperature is 150-220 ℃, and the tempering temperature is 680-720 ℃.
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