CN108192463B - Aqueous nano polishing film coating agent, preparation method and application - Google Patents
Aqueous nano polishing film coating agent, preparation method and application Download PDFInfo
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- CN108192463B CN108192463B CN201711479212.2A CN201711479212A CN108192463B CN 108192463 B CN108192463 B CN 108192463B CN 201711479212 A CN201711479212 A CN 201711479212A CN 108192463 B CN108192463 B CN 108192463B
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- 238000005498 polishing Methods 0.000 title claims abstract description 83
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 68
- 239000007888 film coating Substances 0.000 title claims abstract description 44
- 238000009501 film coating Methods 0.000 title claims abstract description 44
- 238000002360 preparation method Methods 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- ARXJGSRGQADJSQ-UHFFFAOYSA-N 1-methoxypropan-2-ol Chemical compound COCC(C)O ARXJGSRGQADJSQ-UHFFFAOYSA-N 0.000 claims abstract description 22
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 22
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920003180 amino resin Polymers 0.000 claims abstract description 16
- 239000003755 preservative agent Substances 0.000 claims abstract description 16
- 230000002335 preservative effect Effects 0.000 claims abstract description 16
- 239000002270 dispersing agent Substances 0.000 claims abstract description 14
- 239000000080 wetting agent Substances 0.000 claims abstract description 14
- 239000002562 thickening agent Substances 0.000 claims abstract description 13
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 12
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 11
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 239000007822 coupling agent Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 239000004593 Epoxy Substances 0.000 claims abstract description 7
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 7
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 24
- 239000003822 epoxy resin Substances 0.000 claims description 16
- 229920000647 polyepoxide Polymers 0.000 claims description 16
- 239000004925 Acrylic resin Substances 0.000 claims description 14
- 229920000178 Acrylic resin Polymers 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 14
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 9
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 5
- 229920000570 polyether Polymers 0.000 claims description 5
- -1 polysiloxane Polymers 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 5
- MTEZSDOQASFMDI-UHFFFAOYSA-N 1-trimethoxysilylpropan-1-ol Chemical compound CCC(O)[Si](OC)(OC)OC MTEZSDOQASFMDI-UHFFFAOYSA-N 0.000 claims description 4
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims description 3
- HXLAEGYMDGUSBD-UHFFFAOYSA-N 3-[diethoxy(methyl)silyl]propan-1-amine Chemical compound CCO[Si](C)(OCC)CCCN HXLAEGYMDGUSBD-UHFFFAOYSA-N 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- 239000004640 Melamine resin Substances 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002736 nonionic surfactant Substances 0.000 claims description 3
- PKTOVQRKCNPVKY-UHFFFAOYSA-N dimethoxy(methyl)silicon Chemical compound CO[Si](C)OC PKTOVQRKCNPVKY-UHFFFAOYSA-N 0.000 claims 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 claims 1
- 229920006313 waterborne resin Polymers 0.000 claims 1
- 239000013035 waterborne resin Substances 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 description 34
- 238000000576 coating method Methods 0.000 description 31
- 229920002799 BoPET Polymers 0.000 description 13
- 239000010408 film Substances 0.000 description 10
- 239000013307 optical fiber Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 5
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229960002887 deanol Drugs 0.000 description 5
- 239000012972 dimethylethanolamine Substances 0.000 description 5
- 229920002635 polyurethane Polymers 0.000 description 5
- 239000004814 polyurethane Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000004971 Cross linker Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 150000007942 carboxylates Chemical class 0.000 description 2
- WHGNXNCOTZPEEK-UHFFFAOYSA-N dimethoxy-methyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](C)(OC)CCCOCC1CO1 WHGNXNCOTZPEEK-UHFFFAOYSA-N 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 229920001059 synthetic polymer Polymers 0.000 description 2
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 2
- VUWCWMOCWKCZTA-UHFFFAOYSA-N 1,2-thiazol-4-one Chemical class O=C1CSN=C1 VUWCWMOCWKCZTA-UHFFFAOYSA-N 0.000 description 1
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 description 1
- NOWKCMXCCJGMRR-UHFFFAOYSA-N Aziridine Chemical compound C1CN1 NOWKCMXCCJGMRR-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229960000510 ammonia Drugs 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000005543 nano-size silicon particle Substances 0.000 description 1
- 231100000344 non-irritating Toxicity 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 229920000548 poly(silane) polymer Polymers 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 229960004418 trolamine Drugs 0.000 description 1
- 239000008096 xylene Substances 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Laminated Bodies (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a water-based nano polishing film coating agent, a preparation method and application thereof. The water-based nano polishing film coating agent comprises the following raw materials in percentage by weight: 20-35% of water-based resin, 0.3-0.5% of pH regulator, 0.1-0.2% of aminosilane coupling agent, 0.1-0.25% of epoxy silane coupling agent, 0.2-0.3% of dispersant, 0.2-0.3% of wetting agent, 0.15-0.25% of defoaming agent, 0.5-1% of propylene glycol methyl ether, 1-2% of isopropanol, 0.2-0.4% of flatting agent, 1-2% of anti-white water, 0.2-0.5% of preservative, 0.3-0.6% of thickening agent, 4-6% of water-based amino resin, 1-2% of water-based cross-linking agent, 40-51% of water-based nano silica sol and the balance of deionized water. The aqueous nano polishing film coating agent is an aqueous healthy environment-friendly new material, is easy to coat, and can be used for preparing a polishing film with high polishing rate, long service life and high adhesive force of a grinding layer.
Description
Technical Field
The invention relates to the technical field of polishing materials, and particularly relates to a water-based nano polishing film coating agent, and a preparation method and application thereof.
Background
Ultra-precision grinding and polishing have a wide market, for example, in the information industry, chips, magnetic disks and magnetic heads on computers, magnetic drums on video recorders, photosensitive drums, optical disks and laser heads of copiers, ink jet heads of ink jet printers and the like all need ultra-precision processing to meet the requirements of product performance; in civil products, ultra-precise grinding and polishing are required for small and ultra-small imaging devices such as miniature video cameras, pinhole cameras and the like. The optical fiber connector is one of the most important passive optical devices constituting an optical fiber system, and requires lower insertion loss and higher return loss in performance so as to improve the reliability of the optical fiber transmission system. The grinding and polishing of optical fiber connectors play a key role in improving the optical performance of the optical fiber connectors.
Currently, most coating agents are compositions of a non-reactive organopolysiloxane, an organic solvent, and a curing catalyst. However, among these coating agents, non-reactive organic polysilanes and organic solvents are volatile and escape with time, are not flammable and explosive, pollute the environment, and are difficult to apply, and polishing films prepared from these coating agents have poor properties (e.g., polishing rate, lifetime, adhesion of polishing layer, etc.).
Disclosure of Invention
The invention aims to solve the technical problem of providing a water-based nano polishing film coating agent, a preparation method and application thereof.
In order to solve the technical problems, the technical scheme of the invention is as follows:
in a first aspect, the invention provides an aqueous nano polishing film coating agent, which comprises the following raw materials in percentage by weight: 20-35% of water-based resin, 0.3-0.5% of pH regulator, 0.1-0.2% of aminosilane coupling agent, 0.1-0.25% of epoxy silane coupling agent, 0.2-0.3% of dispersant, 0.2-0.3% of wetting agent, 0.15-0.25% of defoaming agent, 0.5-1% of propylene glycol methyl ether, 1-2% of isopropanol, 0.2-0.4% of flatting agent, 1-2% of anti-white water, 0.2-0.5% of preservative, 0.3-0.6% of thickening agent, 4-6% of water-based amino resin, 1-2% of water-based cross-linking agent, 40-51% of water-based nano silica sol and the balance of deionized water.
Preferably, the water-based resin is selected from one or more of modified acrylic resin and water-based epoxy resin.
Further preferably, the aqueous resin comprises a modified acrylic resin and an aqueous epoxy resin, wherein the weight ratio of the modified acrylic resin to the aqueous epoxy resin is 5: 1.
Preferably, the aqueous amino resin is a melamine resin which is low methylated or completely methylated.
Preferably, the leveling agent is one or more of a polyether siloxane copolymer solution, an organic modified polysiloxane solution and a nonionic surfactant solution.
Preferably, the aminosilane coupling agent is selected from one or more of 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane and 3-aminopropylmethyldiethoxysilane.
Preferably, the epoxy silane coupling agent is selected from one or more of 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane, and 3-glycidoxypropylmethyldimethoxysilane.
Preferably, the particle size of the silica sol is 40-200 nanometers, and the solid content is 30-40%.
In a second aspect, the present invention provides a method for preparing the aqueous nano-polishing film coating agent according to the first aspect, comprising the steps of:
mixing the water-based epoxy resin and the pH regulator at the rotating speed of 100-300 r/min, stirring for 5-15 minutes at the rotating speed of 200-500 r/min, sequentially adding a dispersing agent, a wetting agent, propylene glycol methyl ether, isopropanol, a leveling agent, white water prevention water, an antifoaming agent, a coupling agent, water-based amino resin, a water-based cross-linking agent and deionized water, stirring for 10-40 minutes at the high speed of 800-1500 r/min, adding a preservative, a water-based nano silica sol and a thickening agent, and stirring for 10-40 minutes at the rotating speed of 800-1500 r/min to obtain the water-based nano polishing film coating agent.
In a third aspect, the present invention provides a use of the aqueous nano polishing film coating agent according to the first aspect in preparing a polishing film.
Compared with the prior art, the invention has the beneficial effects that:
the water-based nano polishing film coating agent is prepared by taking water as a diluent, does not use any material containing an organic solvent, is non-flammable and non-explosive, does not contain benzene, toluene, xylene, formaldehyde, free TDI and toxic heavy metal, is non-toxic and non-irritating, is harmless to a human body, does not pollute the environment, is a water-based healthy and environment-friendly new material, is easy to coat, and can be used for preparing a polishing film with high polishing rate, long service life and high adhesive force of a grinding layer.
The waterborne nano polishing film coating agent disclosed by the invention is prepared by uniformly coating the waterborne nano polishing film coating agent and a PET (polyethylene terephthalate) film with a corona value of 48 dynes on a 45-70-micrometer PET film through a 8-12-micrometer coating cylinder by a coating machine, baking the waterborne nano polishing film coating agent and the PET film for 1-3 minutes by an oven at 100-120 ℃, die-cutting the waterborne nano polishing film coating agent into required shapes and sizes, and the waterborne nano polishing film coating agent is used for final polishing of optical fiber connectors and optical fiber arrays and can also be used for ultra-precision processing of precision optical devices. After the polishing film prepared by the aqueous nano polishing film coating agent is polished, the surface of a polished device becomes very smooth and even a mirror surface, and the surface of the device has no bad phenomena of pits, scratches, foreign matter adhesion and the like.
Detailed Description
The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In a first aspect, the invention provides an aqueous nano polishing film coating agent, which comprises the following raw materials in percentage by weight: 20-35% of water-based resin, 0.3-0.5% of pH regulator, 0.1-0.2% of aminosilane coupling agent, 0.1-0.25% of epoxy silane coupling agent, 0.2-0.3% of dispersant, 0.2-0.3% of wetting agent, 0.15-0.25% of defoaming agent, 0.5-1% of propylene glycol methyl ether, 1-2% of isopropanol, 0.2-0.4% of flatting agent, 1-2% of anti-white water, 0.2-0.5% of preservative, 0.3-0.6% of thickening agent, 4-6% of water-based amino resin, 1-2% of water-based cross-linking agent, 40-51% of water-based nano silica sol and the balance of deionized water.
In a specific embodiment of the invention, the aqueous resin is selected from one or more of modified acrylic resin and aqueous epoxy resin.
Further, in this embodiment, the aqueous resin includes a modified acrylic resin and an aqueous epoxy resin, wherein the weight ratio of the modified acrylic resin to the aqueous epoxy resin is 5: 1.
Further, in this embodiment, the modified acrylic resin is a commander SK6517 aqueous hydroxyl acrylic resin, and the aqueous epoxy resin is a commander SK2130 aqueous self-emulsifying epoxy ester resin.
In a specific embodiment of the invention, the aqueous amino resin is a low methylated or fully methylated melamine resin.
Further, in this embodiment, the aqueous amino resin is aqueous amino resin 325 by cyante corporation.
In a specific embodiment of the invention, the preservative is an isothiazolinone derivative preservative.
Further, in this embodiment, the preservative is cronhas preservative lxe.
In a specific embodiment of the invention, the defoaming agent is selected from one or more of polysiloxane polyether copolymer (containing silicon dioxide or not containing silicon dioxide), polyether and modified organosilicon mixture.
Further, in this embodiment, the defoamer is a diegafoamx 810.
In a specific embodiment of the present invention, the dispersant is one or more selected from a block copolymer, a polyvalent carboxylate polymer, and a synthetic polymer.
Further, in this embodiment, the dispersant is dispersant SN-5040.
In a specific embodiment of the present invention, the wetting agent is selected from one or more of block polymer, multivalent carboxylate polymer and synthetic polymer.
Further, in this embodiment, the wetting agent is the wetting agent BYK-Disperbyk 180.
In a specific embodiment of the invention, the leveling agent is one or more of a polyether siloxane copolymer solution, an organic modified polysiloxane solution and a nonionic surfactant solution.
Further, in this embodiment, the leveling agent is a leveling agent TEGO 410.
In a specific embodiment of the invention, the pH regulator is selected from one or more of ammonia, triethanolamine, 2-amino-2-methyl-1-propanol, and dimethylethanolamine.
In a specific embodiment of the invention, the aminosilane coupling agent is selected from one or more of 3-aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane and 3-aminopropylmethyldiethoxysilane.
In a specific embodiment of the present invention, the epoxysilane coupling agent is selected from one or more of 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropyltriethoxysilane, and 3-glycidoxypropylmethyldimethoxysilane.
In one embodiment of the invention, the crosslinker is preferably an aziridine crosslinker.
Further, in this embodiment, the crosslinker is a Huarun TAIC crosslinker.
In a specific embodiment of the present invention, the thickener is a polyurethane thickener.
In a specific embodiment of the invention, the silica sol has a particle size of 40 to 200 nm and a solid content of 30 to 40%.
In a second aspect, the present invention provides a method for preparing the aqueous nano-polishing film coating agent according to the first aspect, comprising the steps of:
mixing the water-based epoxy resin and the pH regulator at the rotating speed of 100-300 r/min, stirring for 5-15 minutes at the rotating speed of 200-500 r/min, sequentially adding a dispersing agent, a wetting agent, propylene glycol methyl ether, isopropanol, a leveling agent, white water prevention water, an antifoaming agent, a coupling agent, water-based amino resin, a water-based cross-linking agent and deionized water, stirring for 10-40 minutes at the high speed of 800-1500 r/min, adding a preservative, a water-based nano silica sol and a thickening agent, and stirring for 10-40 minutes at the rotating speed of 800-1500 r/min to obtain the water-based nano polishing film coating agent.
In a third aspect, the present invention provides a use of the aqueous nano polishing film coating agent according to the first aspect in preparing a polishing film.
The present invention is further illustrated by the following examples. "parts" in the following examples represent parts by weight.
Example 1
The preparation method of the water-based nano polishing film coating agent provided by the embodiment of the invention comprises the following steps:
gradually adding 25 parts of water-based commander SK2130 epoxy resin and 5 parts of water-based commander SK6517 acrylic resin into a dispersion cylinder at the rotating speed of 200r/min, uniformly stirring at the rotating speed of 300r/min, then adding 0.3 part of dimethylethanolamine to adjust the pH value to 7, stirring at the rotating speed of 300r/min for 10 minutes, sequentially adding 0.2 part of dispersant SN-50400.2, 0.1 part of wetting agent Disperbyk1800.3, 1 part of propylene glycol methyl ether, 2 parts of isopropanol, 4100.2 parts of flatting agent, 2 parts of white water prevention agent, 0.2 part of defoaming agent Foamex8100.2, 0.2 part of 3-glycidoxypropyltrimethoxysilane, 0.1 part of 3-aminopropyltrimethoxysilane, 55 parts of amino resin, 1 part of TAIC crosslinking agent and 16.8 parts of deionized water, stirring at the rotating speed of 1000r/min for 20 minutes, adding lxe 0.2.2 parts of Rohm Haas preservative, water-based nano silica sol (the particle size is 40 nanometers 328, 30 percent of solid content) 40 parts and polyurethane thickener 0.5 part, and stirring for 20 minutes at the rotating speed of 1000r/min to obtain the aqueous nano polishing film coating agent.
The corona value of the PET film reaches 48 dynes, the aqueous nano polishing film coating agent obtained in the embodiment is added into a coating machine for coating, the oven temperature of the coating machine is set to be 120 ℃, the coating machine is preheated for 10 minutes, a coating plate with 12 micrometers is used for coating the PET film with the thickness of 70 micrometers (the machine speed is 40m/min), after the coating is finished, the PET film coated with the aqueous nano polishing agent is stored in a constant temperature chamber with the temperature of 45 ℃, and the test result after 48 hours is shown in Table 1.
Example 2
The preparation method of the water-based nano polishing film coating agent provided by the embodiment of the invention comprises the following steps:
gradually adding 25 parts of water-based commander SK2130 epoxy resin and 5 parts of water-based commander SK6517 acrylic resin into a dispersion cylinder at the rotating speed of 200r/min, uniformly stirring at the rotating speed of 300r/min, adding 0.3 part of dimethylethanolamine to adjust the pH value to 7, stirring at the rotating speed of 300r/min for 10 minutes, sequentially adding SN-50400.2 parts of dispersing agent, disperbyk1800.3 parts of wetting agent, 1 part of propylene glycol methyl ether, 2 parts of isopropanol, 4100.2 parts of TEflatting agent GO, 2 parts of white water-proof agent, Foamex 8100.2 parts of defoaming agent, 0.2 part of 3-glycidyl ether oxypropyl trimethoxy silane, 0.1 part of 3-aminopropyl trimethoxy silane, 3255 parts of amino resin, 2 parts of TAIC crosslinking agent and 15.8 parts of deionized water, stirring at the rotating speed of 1000r/min for 20 minutes at a high speed, adding lxe 0.2.2 parts of Romen Haas preservative, 40 parts of water-based nano silicon sol (with the particle size of 40 nanometers and 40 percent of solid content) and 40 parts of water at the, 0.5 part of polyurethane thickener is stirred for 20 minutes at the rotating speed of 1000r/min to obtain the aqueous nano polishing film coating agent.
The corona value of the PET film reaches 48 dynes, the prepared aqueous nano polishing film coating agent is added into a coating machine for coating, the oven temperature of the coating machine is set to be 120 ℃, the coating machine is preheated for 10 minutes, a coating plate with the thickness of 12 micrometers is used for coating the PET film with the thickness of 70 micrometers (the machine speed is 40m/min), after the coating is finished, the PET film coated with the aqueous nano polishing agent is stored in a constant temperature chamber with the temperature of 45 ℃, and the test result after 48 hours is shown in table 1.
Example 3
The preparation method of the water-based nano polishing film coating agent provided by the embodiment of the invention comprises the following steps:
gradually adding 25 parts of water-soluble general SK2130 epoxy resin and 5 parts of water-soluble general SK6517 acrylic resin into a dispersion cylinder at the rotating speed of 200r/min, uniformly stirring at the rotating speed of 300r/min, adding 0.3 part of dimethylethanolamine to adjust the pH value to 7, stirring at the rotating speed of 300r/min for 10 minutes, and then sequentially adding SN-50400.2 parts of dispersing agent, disperbyk1800.3 parts of wetting agent, 1 part of propylene glycol methyl ether, 2 parts of isopropanol, 4100.2 parts of TEleveling agent GO, 2 parts of white water prevention agent, Foamex 8100.2 parts of defoaming agent, 0.2 part of 3-glycidyl ether oxypropyltrimethoxysilane and 3-aminopropyltrimethoxysilane: 0.1 part of water-based nano polishing film coating agent, 3255 parts of amino resin, 2 parts of TAIC cross-linking agent and 0.8 part of deionized water, stirring at a high speed of 1000r/min for 20 minutes, adding lxe 0.2.2 parts of preservative Rohm and Haas preservative, 45 parts of water-based nano silica sol (with the grain diameter of 40 nanometers and the solid content of 40 percent) and 0.5 part of polyurethane thickening agent, and stirring at a speed of 1000r/min for 20 minutes to obtain the water-based nano polishing film coating agent.
The corona value of the PET film reaches 48 dynes, the aqueous nano polishing film coating agent obtained in the embodiment is added into a coating machine for coating, the oven temperature of the coating machine is set to be 120 ℃, the coating machine is preheated for 10 minutes, a coating plate with the thickness of 12 micrometers is used for coating a PET optical film with the thickness of 70 micrometers (the machine speed is 40m/min), after the coating is finished, the PET film coated with the aqueous nano polishing agent is stored in a constant temperature chamber with the temperature of 45 ℃, and the test result after 48 hours is shown in table 1.
Example 4
The preparation method of the water-based nano polishing film coating agent provided by the embodiment of the invention comprises the following steps:
gradually adding 25 parts of water-based commander SK2130 epoxy resin and 5 parts of water-based commander SK6517 acrylic resin into a dispersion cylinder at the rotating speed of 200r/min, uniformly stirring at the rotating speed of 300r/min, adding 0.3 part of dimethylethanolamine to adjust the pH value to 7, stirring at the rotating speed of 300r/min for 10 minutes, sequentially adding SN-50400.2 parts of dispersing agent, disperbyk1800.3 parts of wetting agent, 1 part of propylene glycol methyl ether, 2 parts of isopropanol, 4100.2 parts of TEflatting agent GO, 2 parts of white water prevention agent, Foamex 8100.2 parts of defoaming agent, 0.2 part of 3-glycidyl ether oxypropyl trimethoxy silane, 0.1 part of 3-aminopropyl trimethoxy silane, 3255 parts of amino resin, 2 parts of TAIC crosslinking agent and 10.8 parts of deionized water, stirring at the rotating speed of 1000r/min for 20 minutes at a high speed, adding lxe 0.2.2 parts of preservative, and water-based nano silica gel (the particle size of 40 nm, 30 percent of solid content) 45 parts and polyurethane thickener 0.5 part, and stirring for 20 minutes at the rotating speed of 1000r/min to obtain the aqueous nano polishing film coating agent.
The corona value of the PET film reaches 48 dynes, the aqueous nano polishing film coating agent obtained in the embodiment is added into a coating machine for coating, the oven temperature of the coating machine is set to be 120 ℃, the coating machine is preheated for 10 minutes, a coating plate with the thickness of 12 micrometers is used for coating the PET film with the thickness of 70 micrometers (the machine speed is 40m/min), after the coating is finished, the PET film coated with the aqueous nano polishing agent is stored in a constant temperature chamber with the temperature of 45 ℃, and the polishing test results after 48 hours are shown in table 1.
TABLE 1 statistics of test results
And (3) analyzing a detection result: the polishing film obtained in example 1 had a slightly low polishing rate, but had a long life and a good adhesion to the polishing layer. This is because the silica sol (having a solid content of 30%) has a low solid content, resulting in a low content of polishing powder, a long polishing time, a small amount of polishing powder falling off from the polishing substrate, and a naturally low polishing rate.
In example 2, the amount of silica sol added was not changed, but the solid content of silica sol (solid content: 40%) was increased, so that the amount of polishing powder attached to the polishing film was increased, and the polishing efficiency was improved.
In example 3, the amount of silica sol (having a solid content of 40%) added was increased, and the polishing powder contained in the polishing film was also increased, and during the polishing process, the amount of the polishing powder falling was increased, the adhesion was decreased, and the life was also decreased, but the polishing efficiency was increased to 92%. In example 4, the amount of silica sol added was the same as in example 3, but the silica sol used in example 4 had a low solid content, only 30% of the solid content, and the polishing powder was reduced, so that the adhesion of the aqueous nano-polishing film coating agent was improved and the life thereof was increased, but the polishing rate of the resulting polishing film was also decreased.
The embodiments of the present invention have been described in detail, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (6)
1. An aqueous nano polishing film coating agent, which is characterized in that: comprises the following raw materials in percentage by weight: 20-35% of water-based resin, 0.3-0.5% of pH regulator, 0.1-0.2% of aminosilane coupling agent, 0.1-0.25% of epoxy silane coupling agent, 0.2-0.3% of dispersant, 0.2-0.3% of wetting agent, 0.15-0.25% of defoaming agent, 0.5-1% of propylene glycol methyl ether, 1-2% of isopropanol, 0.2-0.4% of flatting agent, 1-2% of anti-white water, 0.2-0.5% of preservative, 0.3-0.6% of thickening agent, 4-6% of water-based amino resin, 1-2% of water-based cross-linking agent, 40-51% of water-based nano silica sol and the balance of deionized water; the aqueous amino resin is melamine resin which is low methylated or completely methylated; the waterborne resin comprises modified acrylic resin and waterborne epoxy resin, wherein the weight ratio of the modified acrylic resin to the waterborne epoxy resin is 5: 1;
the method for preparing the aqueous nano polishing film coating agent comprises the following steps:
mixing the water-based epoxy resin and the pH regulator at the rotating speed of 100-300 r/min, stirring for 5-15 minutes at the rotating speed of 200-500 r/min, sequentially adding a dispersing agent, a wetting agent, propylene glycol methyl ether, isopropanol, a leveling agent, white water prevention water, an antifoaming agent, a coupling agent, water-based amino resin, a water-based cross-linking agent and deionized water, stirring for 10-40 minutes at the high speed of 800-1500 r/min, adding a preservative, a water-based nano silica sol and a thickening agent, and stirring for 10-40 minutes at the rotating speed of 800-1500 r/min to obtain the water-based nano polishing film coating agent.
2. The aqueous nano-polishing film coating agent according to claim 1, characterized in that: the leveling agent is one or more of polyether siloxane copolymer solution, organic modified polysiloxane solution and nonionic surfactant solution.
3. The aqueous nano-polishing film coating agent according to claim 1, characterized in that: the amino silane coupling agent is selected from one or more of 3-aminopropyl trimethoxy silane, 3-aminopropyl triethoxy silane and 3-aminopropyl methyl diethoxy silane.
4. The aqueous nano-polishing film coating agent according to claim 1, characterized in that: the epoxy silane coupling agent is selected from one or more of 3-glycidyl ether oxypropyl trimethoxy silane, 3-glycidyl ether oxypropyl triethoxy silane and 3-glycidyl ether oxypropyl methyl dimethoxy silane.
5. The aqueous nano-polishing film coating agent according to claim 1, characterized in that: the particle size of the silica sol is 40-200 nanometers, and the solid content is 30-40%.
6. Use of the aqueous nano polishing film coating agent according to any one of claims 1 to 5 for preparing a polishing film.
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| CN111015535B (en) * | 2019-12-04 | 2021-04-23 | 东莞金太阳研磨股份有限公司 | Precise polishing film with special structure and preparation method thereof |
| CN112321632B (en) * | 2020-10-27 | 2023-10-03 | 湖北新蓝天新材料股份有限公司 | Silane copolymer for aqueous system and preparation method thereof |
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