CN114656160A - High-light-transmission mildew-proof glass and preparation method thereof - Google Patents
High-light-transmission mildew-proof glass and preparation method thereof Download PDFInfo
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- CN114656160A CN114656160A CN202210277405.4A CN202210277405A CN114656160A CN 114656160 A CN114656160 A CN 114656160A CN 202210277405 A CN202210277405 A CN 202210277405A CN 114656160 A CN114656160 A CN 114656160A
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- 239000011521 glass Substances 0.000 title claims abstract description 87
- 238000002360 preparation method Methods 0.000 title abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 58
- 238000000576 coating method Methods 0.000 claims abstract description 58
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000002105 nanoparticle Substances 0.000 claims abstract description 34
- 229920005989 resin Polymers 0.000 claims abstract description 33
- 239000011347 resin Substances 0.000 claims abstract description 33
- 238000002834 transmittance Methods 0.000 claims abstract description 32
- 230000004888 barrier function Effects 0.000 claims abstract description 30
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 30
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 28
- 239000010703 silicon Substances 0.000 claims abstract description 28
- 229910052681 coesite Inorganic materials 0.000 claims abstract description 23
- 229910052906 cristobalite Inorganic materials 0.000 claims abstract description 23
- 229910052682 stishovite Inorganic materials 0.000 claims abstract description 23
- 229910052905 tridymite Inorganic materials 0.000 claims abstract description 23
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 22
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 229920002050 silicone resin Polymers 0.000 claims abstract description 17
- 230000000903 blocking effect Effects 0.000 claims abstract description 12
- 239000002344 surface layer Substances 0.000 claims abstract description 6
- 125000000524 functional group Chemical group 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- CTLDFURRFMJGON-UHFFFAOYSA-N dimethoxy-methyl-(3-piperazin-1-ylpropyl)silane Chemical compound CO[Si](C)(OC)CCCN1CCNCC1 CTLDFURRFMJGON-UHFFFAOYSA-N 0.000 claims description 32
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 26
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 claims description 16
- CPUDPFPXCZDNGI-UHFFFAOYSA-N triethoxy(methyl)silane Chemical compound CCO[Si](C)(OCC)OCC CPUDPFPXCZDNGI-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000003301 hydrolyzing effect Effects 0.000 claims description 9
- 230000002378 acidificating effect Effects 0.000 claims description 8
- 239000012046 mixed solvent Substances 0.000 claims description 7
- 238000005507 spraying Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 3
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 claims description 3
- 239000003607 modifier Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 11
- 230000006872 improvement Effects 0.000 description 7
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 230000003075 superhydrophobic effect Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- -1 functional group siloxane Chemical class 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004111 Potassium silicate Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- NJSVDVPGINTNGX-UHFFFAOYSA-N [dimethoxy(propyl)silyl]oxymethanamine Chemical compound CCC[Si](OC)(OC)OCN NJSVDVPGINTNGX-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001588 bifunctional effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- JJQZDUKDJDQPMQ-UHFFFAOYSA-N dimethoxy(dimethyl)silane Chemical compound CO[Si](C)(C)OC JJQZDUKDJDQPMQ-UHFFFAOYSA-N 0.000 description 1
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000001282 organosilanes Chemical class 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000004193 piperazinyl group Chemical group 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910052913 potassium silicate Inorganic materials 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Classifications
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Composite Materials (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Surface Treatment Of Glass (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides high-light-transmission mildew-proof glass and a preparation method thereof. The high-light-transmission mildew-proof glass comprises a glass base layer and a mildew-proof blocking coating coated on the surface layer of the glass base layer; the anti-mildew barrier coating comprises hydrophobic modified SiO with the mass ratio of (1.5-3):12Nanoparticles and silicone resins; the number of functional groups of the organic silicon resin is more than 2, and the organic silicon resin is used for realizing the SiO2Chemical attachment of nanoparticles to the glass substrate. According to the invention, a dense barrier coating is prepared on the glass surface through high-content hydrophobic modified silicon dioxide, so that high-efficiency barrier mildew resistance is realized, and meanwhile, the durability and light transmittance of the coating are improved through the modified organic silicon resin, so that the problem of light transmittance reduction caused by the dense coating is prevented.
Description
Technical Field
The invention relates to the technical field of functional glass, in particular to high-light-transmission mildew-proof glass and a preparation method thereof.
Background
Water or moisture is easily adsorbed on the glass surface. Subsequently, water or moisture diffuses into the glass. The soluble silicate in the surface layer is hydrolyzed and destroyed. Firstly, sodium silicate, potassium silicate and the like are hydrolyzed and destroyed. Caustic soda (NaOH) formation and SiO separation2. Separated SiO2A silicone gel forms, forming a protective film on the glass surface, which prevents further attack. The caustic soda formed by hydrolysis reacts with carbon dioxide in the air to form sodium carbonate, which accumulates on the glass surface and forms soluble salts in the surface film. Due to its strong hygroscopic properties, it absorbs water and deliquesces, eventually forming lye droplets. When the ambient temperature, humidity changes, the concentration of these droplets also changes. If the concentrated alkali droplets come into contact with the glass for a long time, the gel-like silica film can be partially dissolved therein, so that severe local erosion of the glass surface occurs, resulting in the formation of spots.
In the prior art, a super-hydrophobic coating is constructed on the surface of glass, so that self-cleaning and mildew-proof effects are realized, and the corrosion damage of the surface layer of the glass is prevented. For example, patent CN108912754A discloses a superhydrophobic SiO2The preparation method and the application of the nano functional liquid are characterized in that silicon dioxide nano particles are modified by fluorine-free organic siloxane and then coated on a glass substrate, so that a super-hydrophobic surface structure with a contact angle of 164.4 degrees can be obtained, and the nano functional liquid has a certain mildew-proof effect. However, in this method, on one hand, the silica particles are directly coated on the surface of the glass, and the bonding strength between the two solids is low, so the durability is poor; on the other hand, the mere application of the silica nano functional liquid can obviously reduce the light transmittance of the glass and influence the use of the transparent glass. Therefore, how to simultaneously ensure the long-acting mildew-resistant effect and the light transmission of the glass is a problem to be solved urgently.
In view of the above, there is a need for an improved high-transmittance mildewproof glass and a method for manufacturing the same.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide high-light-transmission mildew-proof glass and a preparation method thereof. A layer of compact barrier coating is prepared on the surface of glass through high-content hydrophobic modified silicon dioxide, so that efficient barrier and mildew prevention are realized, meanwhile, the durability and light transmittance of the coating are improved through modified organic silicon resin, and the problem that the light transmittance is reduced due to the compact coating is solved.
In order to realize the aim, the invention provides high-light-transmission mildew-proof glass which comprises a glass substrate and a mildew-proof barrier coating coated on the surface layer of the glass substrate; the barrier mildew-proof coating comprises hydrophobic modified SiO with the mass ratio of (1.5-3) to 12Nanoparticles and silicone resins; the number of functional groups of the organic silicon resin is more than 2, and the organic silicon resin is used for realizing the SiO2Chemical attachment of nanoparticles to the glass substrate.
As a further development of the invention, the hydrophobically modified SiO2The modifier of the nano-particles is aminopropyl trimethoxy silane, mercaptopropyl trimethoxy silane or 3-piperazinylpropyl methyl dimethoxy silane.
As a further improvement of the invention, the organic silicon resin contains 3-piperazinylpropylmethyldimethoxysilane.
As a further improvement of the invention, the barrier and mildew-proof coating is obtained by spraying a barrier and mildew-proof coating on the surface of the glass substrate; the hydrophobic modified SiO in the mildew-resistant barrier coating2The mass content of the nano particles is 20% -40%, the total solid content of the mildew-resistant blocking coating is 30% -65%, and a solvent of the mildew-resistant blocking coating comprises n-butyl alcohol or formamide.
A preparation method of the high-light-transmission mildew-proof glass comprises the following steps:
s1, modifying hydrophobic SiO2Dispersing the nano particles in a mixed solvent consisting of n-butyl alcohol or formamide and water, then adding organic silicon resin, and uniformly mixing to obtain the mildew-resistant barrier coating;
s2, spraying the blocking mildew-proof coating on the surface of the glass substrate, and drying and curing to obtain the high-light-transmission mildew-proof glass.
As a further improvement of the invention, in step S1, the components of the silicone resin include methyltriethoxysilane and 3-piperazinylpropylmethyldimethoxysilane.
As a further improvement of the invention, the mass ratio of the methyl triethoxysilane to the 3-piperazinylpropylmethyldimethoxysilane is (70%: 30%) - (90%: 10%).
As a further improvement of the present invention, the preparation method of the silicone resin comprises: hydrolyzing methyl triethoxysilane for 1-2h under acidic condition, adding 3-piperazinylpropylmethyldimethoxysilane, and hydrolyzing for 1-2h under acidic condition to obtain organosilicon resin with network structure edge mainly containing 3-piperazinylpropylmethyldimethoxysilane.
As a further improvement of the present invention, in step S1, in step S1, the content of water in the mixed solvent is 5 wt% to 20 wt%.
As a further improvement of the invention, the light transmittance of the high-light-transmittance mildew-proof glass is 2-10% higher than that of the glass substrate.
The beneficial effects of the invention are:
1. according to the high-light-transmission mildew-proof glass and the preparation method thereof, a layer of compact barrier coating is prepared on the surface of the glass through high-content hydrophobic modified silicon dioxide, so that high-efficiency mildew resistance is realized, meanwhile, the durability and light transmittance of the coating are improved through the modified organic silicon resin, and the problem of light transmittance reduction caused by the compact coating is prevented.
2. Firstly, the invention is to SiO of the nano silica sol2The surface of the nano-particles is subjected to hydrophobic modification, and organosilane micromolecules with bifunctional groups are grafted on the nano-particles to obtain hydrophobic high-activity nano-SiO2The particles are linked with modified nano SiO by organic silicon resin (also being dual functional group siloxane)2The particles and the surface of the glass, thereby obviously improving the wear resistance and the barrier property of the coating and simultaneously ensuring the mildew resistance and the light transmittance of the glass.
3. The preferred SiO modified by 3-piperazinylpropylmethyldimethoxysilane in the invention2The organic silicon resin with the nano particles and the edges taking 3-piperazinylpropylmethyldimethoxysilane as the main components of the coating, so that the prepared glass coating has remarkably excellent compactness and light transmittance.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in detail below with reference to specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the scheme of the present invention are shown in the specific embodiments, and other details not closely related to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The high-light-transmission mildew-proof glass provided by the invention comprises a glass substrate and a mildew-proof barrier coating coated on the surface layer of the glass substrate; the mildew-resistant barrier coating comprises hydrophobic modified SiO with the mass ratio of (1.5-3):12Nanoparticles and silicone resins; the number of functional groups of the organic silicon resin is more than 2, and the organic silicon resin is used for realizing SiO2Chemical attachment of the nanoparticles to the glass substrate. By doing so, a high content of hydrophobically modified SiO2The nano particles endow the coating with high barrier property, hydrophobicity and wear resistance, so that the glass has good long-acting mildew resistance; silicone resin surface active groups as hydrophobically modified SiO2The bridge between the nano particles and the solid proportion plays a role in connection and solidification, improves the film forming property and transparency of the coating, and prevents excessive SiO2The nanoparticles cause a problem of lowering the light transmittance of the glass. Hydrophobically modified SiO2The mass ratio of the nanoparticles to the silicone resin is preferably (2-2.5): 1.
Hydrophobically modified SiO2The modifier of the nano-particles is aminopropyl trimethoxy silane, mercaptopropyl trimethoxy silane or 3-piperazinylpropyl methyldimethoxy silane, preferably 3-piperazinylpropyl methyldimethoxy silane, and the piperazino is not easy to be oxidized on one hand and has better heat resistance; on the other hand, the piperazinyl has good antibacterial and mildewproof effects. And the modified silicon dioxide refractive index and the glass substrateThe matching property of (A) is better, so that the light transmission of the coating is ensured.
Preferably, the silicone resin contains 3-piperazinylpropylmethyldimethoxysilane. The preparation method of the organic silicon resin comprises the following steps: hydrolyzing methyl triethoxysilane for 1-2h under acidic condition, adding 3-piperazinylpropylmethyldimethoxysilane, and hydrolyzing for 1-2h under acidic condition to obtain organosilicon resin with network structure edge mainly containing 3-piperazinylpropylmethyldimethoxysilane. The mass ratio of the methyltriethoxysilane to the 3-piperazinylpropylmethyldimethoxysilane is (70%: 30%) - (90%: 10%).
Firstly, hydrolyzing methyl triethoxysilane for a certain time to form a certain crosslinked resin network, and then adding 3-piperazinylpropylmethyldimethoxysilane to allow the main hydrolysis condensation to exist at the edge of the network structure; and because the addition amount of the 3-piperazinylpropylmethyldimethoxysilane is less than that of the methyltriethoxysilane, the organic silicon resin also contains more active alkoxy groups, so that the organic silicon resin can be conveniently used as a bonding bridge between silicon dioxide and glass.
The blocking mildew-proof coating is obtained by spraying a blocking mildew-proof coating on the surface of a glass substrate; hydrophobic modified SiO in mildew-resistant barrier coating2The mass content of the nano particles is 20-40%, preferably 30-35%; the total solid content of the mildew-resistant barrier coating is 30-65%, preferably 40-60%; the solvent of the mildew-proof blocking coating comprises n-butyl alcohol or formamide. The addition of n-butyl alcohol or formamide can effectively improve the hydrophobic modified SiO2The dispersibility and permeability of the nano-particles, thereby improving the light transmittance of the coating. In the coating material, auxiliary agents such as hardening agent, curing agent, film-forming agent and the like can also be added.
A preparation method of any one of the high-light-transmission mildew-proof glass comprises the following steps:
s1, modifying hydrophobic SiO2Dispersing the nano particles in a mixed solvent consisting of n-butyl alcohol or formamide and water, then adding organic silicon resin, and uniformly mixing to obtain the mildew-resistant barrier coating; the volume ratio of the n-butanol or formamide to the water is (70%: 30%) - (90%:10％)。
s2, spraying the blocking mildew-proof coating on the surface of the glass substrate, and drying and curing to obtain the high-light-transmission mildew-proof glass.
In step S1, the content of water in the mixed solvent is 5 wt% to 20 wt% in step S1.
The light transmittance of the high-light-transmittance mildew-proof glass is 2% -10% higher than that of the glass substrate. This is because the barrier coating of the present invention provides anti-reflection on the glass surface, thereby increasing the light transmittance of the glass.
Example 1
The high-light-transmittance mildew-proof glass is prepared by the following steps:
s1, modifying hydrophobic SiO2Dispersing the nano particles in a mixed solvent consisting of n-butyl alcohol and water (the volume ratio is 85%: 15%), then adding organic silicon resin, a hardening agent and a curing agent, and uniformly mixing to obtain the mildew-resistant barrier coating;
wherein, the hydrophobic modified SiO in the mildew-proof coating is blocked2The mass content of the nano particles is 30%, the content of the organic silicon resin is 15%, and the total solid content is 50%. Hydrophobically modified SiO2The nano-particles are SiO modified by 3-piperazinylpropylmethyldimethoxysilane2A nanoparticle; the silicone resin is prepared by the following steps:
hydrolyzing methyl triethoxysilane for 1h under acidic condition, adding 3-piperazinylpropylmethyldimethoxysilane, and hydrolyzing for 2h under acidic condition to obtain organosilicon resin with network structure edge mainly containing 3-piperazinylpropylmethyldimethoxysilane. The mass ratio of the methyl triethoxysilane to the 3-piperazinylpropylmethyldimethoxysilane is 80%: 20 percent.
S2, spraying the blocking mildew-proof coating on the surface of the glass substrate, and drying and curing to obtain the high-light-transmission mildew-proof glass.
Examples 2 to 5
Compared with the embodiment 1, the high-light-transmittance mildewproof glass is different in that the hydrophobic modified SiO2The contents of nanoparticles and silicone resin are shown in table 1, the others are about the same as in example 1, and the contents are not repeated hereThe description is given.
The mildew resistance was tested according to the standard GBT 1741-2007.
Table 1 preparation conditions and test results for examples 1-5
As can be seen from Table 1, the coating with low porosity and high dense barrier property is prepared by controlling the content and the proportion of the silicon dioxide and the organic silicon resin, so that the light transmittance and the mildew resistance of the glass are improved.
Example 6
Compared with the embodiment 1, the high-light-transmittance mildewproof glass is different in that the hydrophobic modified SiO2The nano particles are SiO modified by amino propyl trimethoxy silane2A nanoparticle; the rest is substantially the same as that of embodiment 1, and will not be described herein.
Examples 7 to 8
Compared with the embodiment 1, the high-light-transmission mildew-proof glass is characterized in that the mass ratio of methyl triethoxysilane to 3-piperazinylpropylmethyldimethoxysilane in the organic silicon resin is 70% in sequence: 30% (example 7) and 90%: 10% (example 8). The rest is substantially the same as that of embodiment 1, and will not be described herein.
Comparative example 1
Compared with the example 1, the high-light-transmittance mildewproof glass is different in that 3-piperazinylpropylmethyldimethoxysilane in the organic silicon resin is replaced by dimethyldimethoxysilane. The rest is substantially the same as embodiment 1, and will not be described herein.
Comparative example 2
A highly light-transmitting mold-proof glass, which is different from example 1 in that a silicone resin is prepared by the following steps: and simultaneously adding methyl triethoxysilane and 3-piperazinylpropylmethyldimethoxysilane into the reaction system, and carrying out hydrolysis reaction for 2h to obtain the organic silicon resin.
Table 2 preparation conditions and test results of comparative examples 1-2 of examples 6-8
| Examples | Light transmittance (%) | Coating porosity (%) | Mildew resistance rating |
| Example 6 | 87.71 | 8.4 | 1 |
| Example 7 | 87.62 | 9.1 | 2 |
| Example 8 | 87.29 | 9.5 | 2 |
| Comparative example 1 | 86.52 | 10.8 | 3 |
| Comparative example 2 | 86.42 | 10.5 | 2 |
As can be seen from Table 2, when the type and content of the nitrogen-containing silane used in the silica or silicone resin were varied, the light transmittance and mold resistance were decreased to various degrees, wherein the mold resistance was greatly affected by 3-piperazinylpropylmethyldimethoxysilane in the silicone resin. When methyltriethoxysilane and 3-piperazinylpropylmethyldimethoxysilane are simultaneously added to the reaction system, the porosity of the coating is increased and the light transmittance and the mildew resistance are reduced due to the change of the network structure.
In conclusion, according to the high-light-transmission mildew-proof glass and the preparation method thereof provided by the invention, a layer of compact barrier coating is prepared on the surface of the glass through high-content hydrophobic modified silicon dioxide, so that high-efficiency mildew-proof barrier is realized, meanwhile, the durability and light transmittance of the coating are improved through the modified organic silicon resin, and the problem that the light transmittance is reduced due to the compact coating is prevented. Preferably 3-piperazinylpropylmethyldimethoxysilane-modified SiO2The organic silicon resin with the nano particles and the edges taking 3-piperazinylpropylmethyldimethoxysilane as the main components of the coating, so that the prepared glass coating has remarkably excellent compactness and light transmittance.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. The high-light-transmission mildew-proof glass is characterized by comprising a glass substrate and a mildew-proof barrier coating coated on the surface layer of the glass substrate; the barrier mildew-proof coating comprises hydrophobic modified SiO with the mass ratio of (1.5-3):12Nanoparticles and silicone resins; the number of functional groups of the organic silicon resin is more than 2, and the organic silicon resin is used for realizing the SiO2Chemical attachment of nanoparticles to the glass substrate.
2. The high clarity of claim 1The light mildew-proof glass is characterized in that the hydrophobic modified SiO2The modifier of the nano-particles is aminopropyl trimethoxy silane, mercaptopropyl trimethoxy silane or 3-piperazinylpropyl methyl dimethoxy silane.
3. The high-transparency mildew-proof glass according to claim 1, wherein the silicone resin contains 3-piperazinylpropylmethyldimethoxysilane.
4. The high-light-transmission mildew-proof glass according to claim 1, wherein the barrier mildew-proof coating is obtained by spraying a barrier mildew-proof paint on the surface of the glass substrate; the hydrophobic modified SiO in the mildew-resistant barrier coating2The mass content of the nano particles is 20-40%, the total solid content of the mildew-resistant blocking coating is 30-65%, and the solvent of the mildew-resistant blocking coating comprises n-butyl alcohol or formamide.
5. A method for preparing the high light-transmission mildew-proof glass according to any one of claims 1 to 4, which is characterized by comprising the following steps:
s1, modifying hydrophobic SiO2Dispersing the nano particles in a mixed solvent consisting of n-butyl alcohol or formamide and water, then adding organic silicon resin, and uniformly mixing to obtain the mildew-resistant barrier coating;
s2, spraying the blocking mildew-proof coating on the surface of the glass substrate, and drying and curing to obtain the high-light-transmission mildew-proof glass.
6. The method for preparing high light transmittance mildewproof glass in accordance with claim 5, wherein in the step S1, the components of the silicone resin comprise methyltriethoxysilane and 3-piperazinylpropylmethyldimethoxysilane.
7. The method for preparing high-transmittance mildew-resistant glass according to claim 6, wherein the mass ratio of the methyltriethoxysilane to the 3-piperazinylpropylmethyldimethoxysilane is (70%: 30%) - (90%: 10%).
8. The method for preparing the high-light-transmission mildew-proof glass according to claim 6, wherein the method for preparing the silicone resin comprises the following steps: hydrolyzing methyl triethoxysilane for 1-2h under acidic condition, adding 3-piperazinylpropylmethyldimethoxysilane, and hydrolyzing for 1-2h under acidic condition to obtain organosilicon resin with network structure edge mainly containing 3-piperazinylpropylmethyldimethoxysilane.
9. The method for preparing high light transmittance mildewproof glass according to claim 5, wherein in the step S1, in the step S1, the content of water in the mixed solvent is 5 to 20 weight percent.
10. The method for preparing the high-light-transmission mildew-proof glass according to claim 5, wherein the light transmittance of the high-light-transmission mildew-proof glass is 2-10% higher than that of the glass substrate.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115947545A (en) * | 2022-12-22 | 2023-04-11 | 东莞南玻太阳能玻璃有限公司 | Anti-reflection coating liquid, photovoltaic coated glass and preparation method of photovoltaic coated glass |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108912867A (en) * | 2018-06-25 | 2018-11-30 | 东南大学 | A kind of environmental protection high transparency super hydrophobic coating and its preparation method and application |
| CN109370418A (en) * | 2018-09-29 | 2019-02-22 | 武汉疏能新材料有限公司 | A kind of super hydrophobic coating, coating and its preparation method and application |
| CN109627980A (en) * | 2018-12-24 | 2019-04-16 | 雅思汀娜（北京）科技有限公司 | A kind of normal temperature solidified hydrophobic film coating liuqid and preparation method thereof and hydrophobic plated film |
| CN109734325A (en) * | 2019-02-20 | 2019-05-10 | 邹玉 | A kind of preparation method of super-hydrophobic antifog glass |
| CN110002767A (en) * | 2019-04-28 | 2019-07-12 | 湖南邦弗特新材料技术有限公司 | A kind of preparation method of the hydrophobic film of high transparency for photovoltaic glass |
| CN112368346A (en) * | 2018-07-02 | 2021-02-12 | 赢创运营有限公司 | Surface coating composition with long durability |
| TW202124586A (en) * | 2019-10-15 | 2021-07-01 | 德商漢高股份有限及兩合公司 | One-component moisture-curable silicone compositions |
-
2022
- 2022-03-18 CN CN202210277405.4A patent/CN114656160B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108912867A (en) * | 2018-06-25 | 2018-11-30 | 东南大学 | A kind of environmental protection high transparency super hydrophobic coating and its preparation method and application |
| CN112368346A (en) * | 2018-07-02 | 2021-02-12 | 赢创运营有限公司 | Surface coating composition with long durability |
| CN109370418A (en) * | 2018-09-29 | 2019-02-22 | 武汉疏能新材料有限公司 | A kind of super hydrophobic coating, coating and its preparation method and application |
| CN109627980A (en) * | 2018-12-24 | 2019-04-16 | 雅思汀娜（北京）科技有限公司 | A kind of normal temperature solidified hydrophobic film coating liuqid and preparation method thereof and hydrophobic plated film |
| CN109734325A (en) * | 2019-02-20 | 2019-05-10 | 邹玉 | A kind of preparation method of super-hydrophobic antifog glass |
| CN110002767A (en) * | 2019-04-28 | 2019-07-12 | 湖南邦弗特新材料技术有限公司 | A kind of preparation method of the hydrophobic film of high transparency for photovoltaic glass |
| TW202124586A (en) * | 2019-10-15 | 2021-07-01 | 德商漢高股份有限及兩合公司 | One-component moisture-curable silicone compositions |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115947545A (en) * | 2022-12-22 | 2023-04-11 | 东莞南玻太阳能玻璃有限公司 | Anti-reflection coating liquid, photovoltaic coated glass and preparation method of photovoltaic coated glass |
| CN115947545B (en) * | 2022-12-22 | 2024-03-26 | 东莞南玻太阳能玻璃有限公司 | Anti-reflection and anti-reflection coating liquid, photovoltaic coated glass and preparation method thereof |
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