CN111117309A - Nano sealing agent and preparation method thereof - Google Patents
Nano sealing agent and preparation method thereof Download PDFInfo
- Publication number
- CN111117309A CN111117309A CN202010012897.5A CN202010012897A CN111117309A CN 111117309 A CN111117309 A CN 111117309A CN 202010012897 A CN202010012897 A CN 202010012897A CN 111117309 A CN111117309 A CN 111117309A
- Authority
- CN
- China
- Prior art keywords
- parts
- agent
- weight
- nano
- film forming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention relates to the technical field of sealing agents, in particular to a nano sealing agent and a preparation method thereof. A nano sealing agent at least comprises the following components in parts by weight: 25-28 parts of film forming agent, 3-4 parts of solvent, 11-13 parts of stabilizer and 1-2 parts of cross-linking agent. The nano sealing agent is prepared by adopting the film forming agent, the solvent, the stabilizer, the cross-linking agent and the like, has better compatibility with a plating layer, does not damage metal and a metal plating layer, and can effectively improve the fingerprint resistance and the corrosion resistance of the plating layer by sealing the plating layer by adopting the nano sealing agent prepared by the invention.
Description
Technical Field
The invention relates to the technical field of sealing agents, in particular to a nano sealing agent and a preparation method thereof.
Background
The problem of corrosion of metals is widespread in various areas of national economy. From daily life to transportation, chemical industry, metallurgy, machinery, and from advanced science and technology to national defense industry, all places where metals are used have corrosion problems in different degrees, and the metal corrosion problem brings great economic loss to society. Corrosion of metals refers to the deterioration and destruction of metals by chemical and electrochemical interactions with the surrounding medium. Metal corrosion can be divided into chemical, electrochemical and physical corrosion. Chemical corrosion refers to damage caused by a purely chemical reaction between the metal surface and the non-electrolyte, and no current is generated during the corrosion process, since the transfer of electrons takes place directly between the metal and the oxidant, as do corrosion in dry gas and non-electrolyte solutions. Electrochemical corrosion refers to the electrochemical reaction between a metal surface and an electrolyte solution, and generally, the corrosion reaction performed according to an electrochemical mechanism has at least one anodic reaction and one cathodic reaction, and the electrochemical corrosion is the most common corrosion, and the corrosion of metals in acid, alkali, salt, and media such as atmosphere, seawater, soil, and the like all belong to the category. Physical corrosion refers to the damage of a metal caused by mere physical dissolution, which can occur in liquid metals.
At present, there are 4 main methods for preventing metal corrosion, the first is to improve the corrosion resistance of metal materials; the second is a coating method; the third is to treat the corrosive medium; the fourth is electrochemical protection. Of which the coating method is the simplest and straightforward one. Coating methods include four broad categories: coating, plating, spraying and chemical conversion coating. The electroplating process is a process of adhering a layer of metal or alloy coating on the surface of some metals by utilizing the electrolysis principle, such as electro-galvanizing, electro-nickelling, electro-gold and the like, and has the effects of preventing metal corrosion, improving the wear resistance of the metals, enabling the surface of metal products to be more attractive and the like. When corrosion occurs, the coating is corroded first, and the corrosion of the substrate is delayed.
In order to make the protective time of the plating layer on the metal surface to the substrate longer, passivation treatment is usually performed on the plating layer, and sealing treatment is usually performed after the passivation treatment of the plating layer, so that the technical requirements of high-end products in the manufacturing industry can be met. Aiming at the problems, the invention aims to provide a nano sealing agent and a preparation method thereof, and the nano sealing agent prepared by the invention is used for sealing a plating layer, so that the fingerprint resistance and the corrosion resistance of the plating layer can be effectively improved.
Disclosure of Invention
In order to solve the above problems, a first aspect of the present invention provides a nano sealant, which comprises at least the following components in parts by weight: 25-28 parts of film forming agent, 3-4 parts of solvent, 11-13 parts of stabilizer and 1-2 parts of cross-linking agent.
As a preferable technical scheme, the film forming agent is at least one selected from epoxy resin, acrylic resin, polyacrylamide, polyvinylpyrrolidone, polyurethane, nano silica sol and silane coupling agent.
As a preferable technical scheme, the film forming agent contains 19-20 parts by weight of nano silica sol and 6-8 parts by weight of silane coupling agent.
As a preferable technical scheme, the average particle size of the nano silica sol is less than 20 nm.
In a preferred embodiment, the silane coupling agent is at least one selected from the group consisting of 3-aminopropyltrimethoxysilane, 3- (2, 3-glycidoxy) propyltrimethoxysilane, 3- (methacryloyloxy) propyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, and aminopropylmethyldiethoxysilane.
As a preferable technical solution, the solvent is at least one selected from the group consisting of polyethylene glycol, 1, 2-propylene glycol, isopropyl alcohol, acetone, methyl ethyl methyl ketone, methyl ethyl ketone, and butyl glycol ether.
In a preferred embodiment, the stabilizer is at least one selected from potassium pyrophosphate, sodium pyrophosphate, methanol, ethanol and propanol.
As a preferable technical scheme, the stabilizer contains 6-7 parts by weight of methanol and 5-6 parts by weight of ethanol.
As a preferred technical scheme, the cross-linking agent is selected from at least one of trimethylol melamine, triethanolamine, aziridine, trimethylolpropane and tri (ethyl acetoacetoxy) aluminum.
The second aspect of the invention provides a preparation method of a nano sealant, which at least comprises the following steps: mixing and stirring the film forming agent, the solvent, the stabilizer, the cross-linking agent and the water uniformly.
Has the advantages that: the nano sealing agent is prepared by adopting the film forming agent, the solvent, the stabilizer, the cross-linking agent and the like, has better compatibility with a plating layer, does not damage metal and a metal plating layer, and can effectively improve the fingerprint resistance and the corrosion resistance of the plating layer by sealing the plating layer by adopting the nano sealing agent prepared by the invention.
Detailed Description
The technical features in the technical solutions provided by the present invention are further clearly and completely described below with reference to the specific embodiments, but the scope of protection of the present invention is not limited thereto.
"preferred", "more preferred", and the like, in the present invention, refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
The invention provides a nano sealant, which at least comprises the following components in parts by weight: 25-28 parts of film forming agent, 3-4 parts of solvent, 11-13 parts of stabilizer and 1-2 parts of cross-linking agent.
In a preferred embodiment, at least the following ingredients are included in parts by weight: 26.5 parts of film forming agent, 3.5 parts of solvent, 12 parts of stabilizing agent and 1.5 parts of crosslinking agent.
In a preferred embodiment, the film forming agent is selected from at least one of epoxy resin, acrylic resin, polyacrylamide, polyvinylpyrrolidone, polyurethane, nano silica sol, and silane coupling agent.
In a more preferred embodiment, the film-forming agent is a nano silica sol, a silane coupling agent.
In a preferred embodiment, the film forming agent comprises 19-20 parts by weight of nano silica sol and 6-8 parts by weight of silane coupling agent.
In a more preferred embodiment, the film forming agent comprises 19.5 parts by weight of nano silica sol and 7 parts by weight of silane coupling agent.
Silica sols are dispersions of nanoscale silica particles in water or a solvent. Due to SiO in the silica sol2Contains a large amount of water and hydroxyl groups, so that the silica sol can also be expressed as mSiO2.nH2O。
In a preferred embodiment, the concentration of the nanosilica sol is 30 wt%.
In a preferred embodiment, the nanosilica sol has an average particle size of less than 20 nm.
In a preferred embodiment, the nanosilica sol has an average particle size of greater than 7 nm.
In a more preferred embodiment, the nanosilica sol has an average particle size of 10 nm.
The nano silica sol was purchased from Whitert nanotechnology, Inc., Guangdong.
The applicant finds through a large number of experiments that when the sealing agent is prepared by adopting the specific film forming agent, the specific solvent, the specific stabilizer and the specific crosslinking agent, the prepared nano sealing agent has good sealing performance, and particularly for galvanized parts and nickel-plated parts, when the nano sealing agent prepared by the method is used for sealing a plating layer, the fingerprint resistance of the plating layer can be improved, and meanwhile, the corrosion resistance of the plating layer can be improved. The reason for this is probably that under specific conditions, the sealant has good fluidity and moderate viscosity, and can effectively penetrate into the surface of the coating to fill the pores and cracks of the surface layer, and meanwhile, because the existence of active groups in the system makes the bonding strength between the sealant and the coating higher, which is beneficial to forming a uniform and compact colloidal state sealing film layer.
In a preferred embodiment, the silane coupling agent is selected from at least one of 3-aminopropyltrimethoxysilane, 3- (2, 3-glycidoxy) propyltrimethoxysilane, 3- (methacryloyloxy) propyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, aminopropylmethyldiethoxysilane.
In a more preferred embodiment, the silane coupling agent is 3- (2, 3-glycidoxy) propyltrimethoxysilane, vinyltriethoxysilane.
In a preferred embodiment, the 3- (2, 3-glycidoxy) propyltrimethoxysilane is 4-5 parts by weight, and the vinyltriethoxysilane is 2-3 parts by weight.
In a more preferred embodiment, the 3- (2, 3-glycidoxy) propyltrimethoxysilane is 4.5 parts and the vinyltriethoxysilane is 2.5 parts by weight.
The CAS number of the 3- (2, 3-epoxypropoxy) propyl trimethoxy silane is 2530-83-8.
The CAS number of the vinyltriethoxysilane is 78-08-0.
In a preferred embodiment, the solvent is selected from at least one of polyethylene glycol, 1, 2-propylene glycol, isopropyl alcohol, acetone, methyl ethyl methyl ketone, methyl ethyl ketone, and butyl glycol ether.
In a more preferred embodiment, the solvent is ethylene glycol butyl ether.
The CAS number of the ethylene glycol butyl ether is 111-76-2.
In a preferred embodiment, the stabilizer is selected from at least one of potassium pyrophosphate, sodium pyrophosphate, methanol, ethanol, propanol.
In a more preferred embodiment, the stabilizer is methanol, ethanol.
In a preferred embodiment, the stabilizer comprises 6 to 7 parts by weight of methanol and 5 to 6 parts by weight of ethanol.
In a more preferred embodiment, the stabilizer comprises 6.5 parts by weight of methanol and 5.5 parts by weight of ethanol.
In a preferred embodiment, the crosslinking agent is selected from at least one of trimethylolmelamine, triethanolamine, aziridine, trimethylolpropane, and tris (ethylacetoacetato) aluminum.
In a more preferred embodiment, the crosslinking agent is tris (ethylacetoacetato) aluminum.
The CAS number for tris (ethylacetoacetato) aluminum is 15306-17-9.
The second aspect of the invention provides a preparation method of a nano sealant, which at least comprises the following steps: mixing the film forming agent, the solvent, the stabilizer, the cross-linking agent and water, and stirring uniformly.
In a preferred embodiment, the preparation method of the nano-sealant at least comprises the following steps: mixing 25-28 parts of film forming agent, 3-4 parts of solvent, 11-13 parts of stabilizer, 1-2 parts of cross-linking agent and 57-58 parts of water by weight, and uniformly stirring.
In a more preferred embodiment, the preparation method of the nano-blocking agent at least comprises the following steps: and (2) mixing 26.5 parts by weight of film forming agent, 3.5 parts by weight of solvent, 12 parts by weight of stabilizer, 1.5 parts by weight of cross-linking agent and 57.5 parts by weight of water, and uniformly stirring.
Hereinafter, the present invention will be described in more detail by way of examples, but it should be understood that these examples are merely illustrative and not restrictive. In addition, all the raw materials are commercially available if not particularly limited.
Examples
Example 1
The embodiment 1 of the invention provides a nano sealant which comprises the following components in parts by weight: 26.5 parts of film forming agent, 3.5 parts of solvent, 12 parts of stabilizing agent and 1.5 parts of crosslinking agent.
The film forming agent is nano silica sol and a silane coupling agent.
The film forming agent contains 19.5 parts by weight of nano silica sol and 7 parts by weight of silane coupling agent.
The concentration of the nano silica sol is 30 wt%.
The average grain diameter of the nano silica sol is 10 nm.
The silane coupling agent is 3- (2, 3-epoxypropoxy) propyl trimethoxy silane or vinyl triethoxy silane.
4.5 parts of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane and 2.5 parts of vinyl triethoxy silane.
The solvent is ethylene glycol butyl ether.
The stabilizer is methanol or ethanol.
The stabilizer contains 6.5 parts by weight of methanol and 5.5 parts by weight of ethanol.
The cross-linking agent is tri (ethyl acetoacetoxy) aluminum.
The embodiment 1 of the invention also provides a preparation method of the nano sealant, which comprises the following steps: and (2) mixing 26.5 parts by weight of film forming agent, 3.5 parts by weight of solvent, 12 parts by weight of stabilizer, 1.5 parts by weight of cross-linking agent and 57.5 parts by weight of water, and uniformly stirring.
Example 2
The embodiment 2 of the invention provides a nano sealant which comprises the following components in parts by weight: 25 parts of film forming agent, 3 parts of solvent, 11 parts of stabilizer and 1 part of crosslinking agent.
The film forming agent is nano silica sol and a silane coupling agent.
The film forming agent contains 19 parts by weight of nano silica sol and 6 parts by weight of silane coupling agent.
The concentration of the nano silica sol is 30 wt%.
The average grain diameter of the nano silica sol is 8 nm.
The silane coupling agent is 3- (2, 3-epoxypropoxy) propyl trimethoxy silane or vinyl triethoxy silane.
4 parts of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane and 2 parts of vinyl triethoxy silane.
The solvent is ethylene glycol butyl ether.
The stabilizer is methanol or ethanol.
The stabilizer contains 6 parts by weight of methanol and 5 parts by weight of ethanol.
The cross-linking agent is tri (ethyl acetoacetoxy) aluminum.
The embodiment 2 of the invention also provides a preparation method of the nano sealant, which comprises the following steps: mixing 25 parts of film forming agent, 3 parts of solvent, 11 parts of stabilizer, 1 part of cross-linking agent and 57 parts of water by weight, and uniformly stirring.
Example 3
The embodiment 3 of the invention provides a nano sealant which comprises the following components in parts by weight: 28 parts of film forming agent, 4 parts of solvent, 13 parts of stabilizer and 2 parts of crosslinking agent.
The film forming agent is nano silica sol and a silane coupling agent.
The film forming agent contains 20 parts by weight of nano silica sol and 8 parts by weight of silane coupling agent.
The concentration of the nano silica sol is 30 wt%.
The average grain diameter of the nano silica sol is 15 nm.
The silane coupling agent is 3- (2, 3-epoxypropoxy) propyl trimethoxy silane or vinyl triethoxy silane.
5 parts of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane and 3 parts of vinyl triethoxy silane.
The solvent is ethylene glycol butyl ether.
The stabilizer is methanol or ethanol.
The stabilizer contains 7 parts by weight of methanol and 6 parts by weight of ethanol.
The cross-linking agent is tri (ethyl acetoacetoxy) aluminum.
The embodiment 1 of the invention also provides a preparation method of the nano sealant, which comprises the following steps: and (3) mixing and uniformly stirring 28 parts of film forming agent, 4 parts of solvent, 13 parts of stabilizer, 2 parts of cross-linking agent and 58 parts of water by weight.
Example 4
Embodiment 4 of the present invention provides a nano sealing agent, which comprises the following components in parts by weight: 26.5 parts of film forming agent, 3.5 parts of solvent, 12 parts of stabilizing agent and 1.5 parts of crosslinking agent.
The film forming agent is nano silica sol and a silane coupling agent.
The film forming agent contains 19.5 parts by weight of nano silica sol and 7 parts by weight of silane coupling agent.
The concentration of the nano silica sol is 30 wt%.
The average grain diameter of the nano silica sol is 25 nm.
The silane coupling agent is 3- (2, 3-epoxypropoxy) propyl trimethoxy silane or vinyl triethoxy silane.
4.5 parts of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane and 2.5 parts of vinyl triethoxy silane.
The solvent is ethylene glycol butyl ether.
The stabilizer is methanol or ethanol.
The stabilizer contains 6.5 parts by weight of methanol and 5.5 parts by weight of ethanol.
The cross-linking agent is tri (ethyl acetoacetoxy) aluminum.
Embodiment 4 of the present invention also provides a preparation method of a nano sealant, including the following steps: and (2) mixing 26.5 parts by weight of film forming agent, 3.5 parts by weight of solvent, 12 parts by weight of stabilizer, 1.5 parts by weight of cross-linking agent and 57.5 parts by weight of water, and uniformly stirring.
Example 5
The embodiment 5 of the invention provides a nano sealant which comprises the following components in parts by weight: 26.5 parts of film forming agent, 3.5 parts of solvent, 12 parts of stabilizing agent and 1.5 parts of crosslinking agent.
The film forming agent is nano silica sol and a silane coupling agent.
The film forming agent contains 19.5 parts by weight of nano silica sol and 7 parts by weight of silane coupling agent.
The concentration of the nano silica sol is 30 wt%.
The average grain diameter of the nano silica sol is 2 nm.
The silane coupling agent is 3- (2, 3-epoxypropoxy) propyl trimethoxy silane or vinyl triethoxy silane.
4.5 parts of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane and 2.5 parts of vinyl triethoxy silane.
The solvent is ethylene glycol butyl ether.
The stabilizer is methanol or ethanol.
The stabilizer contains 6.5 parts by weight of methanol and 5.5 parts by weight of ethanol.
The cross-linking agent is tri (ethyl acetoacetoxy) aluminum.
Embodiment 5 of the present invention also provides a method for preparing a nano sealant, comprising the following steps: and (2) mixing 26.5 parts by weight of film forming agent, 3.5 parts by weight of solvent, 12 parts by weight of stabilizer, 1.5 parts by weight of cross-linking agent and 57.5 parts by weight of water, and uniformly stirring.
Example 6
Embodiment 6 of the present invention provides a nano sealing agent, which comprises the following components in parts by weight: 26.5 parts of film forming agent, 3.5 parts of solvent, 12 parts of stabilizing agent and 1.5 parts of crosslinking agent.
The film forming agent is nano silica sol and a silane coupling agent.
The film forming agent contains 19.5 parts by weight of nano silica sol and 7 parts by weight of silane coupling agent.
The concentration of the nano silica sol is 30 wt%.
The average grain diameter of the nano silica sol is 10 nm.
The silane coupling agent is 3- (2, 3-epoxypropoxy) propyl trimethoxy silane.
The solvent is ethylene glycol butyl ether.
The stabilizer is methanol or ethanol.
The stabilizer contains 6.5 parts by weight of methanol and 5.5 parts by weight of ethanol.
The cross-linking agent is tri (ethyl acetoacetoxy) aluminum.
Embodiment 6 of the present invention also provides a method for preparing a nano sealant, comprising the following steps: and (2) mixing 26.5 parts by weight of film forming agent, 3.5 parts by weight of solvent, 12 parts by weight of stabilizer, 1.5 parts by weight of cross-linking agent and 57.5 parts by weight of water, and uniformly stirring.
Example 7
Embodiment 7 of the present invention provides a nano sealing agent, which comprises the following components in parts by weight: 26.5 parts of film forming agent, 3.5 parts of solvent, 12 parts of stabilizing agent and 1.5 parts of crosslinking agent.
The film forming agent is nano silica sol and a silane coupling agent.
The film forming agent contains 19.5 parts by weight of nano silica sol and 7 parts by weight of silane coupling agent.
The concentration of the nano silica sol is 30 wt%.
The average grain diameter of the nano silica sol is 10 nm.
The silane coupling agent is vinyl triethoxysilane.
The solvent is ethylene glycol butyl ether.
The stabilizer is methanol or ethanol.
The stabilizer contains 6.5 parts by weight of methanol and 5.5 parts by weight of ethanol.
The cross-linking agent is tri (ethyl acetoacetoxy) aluminum.
Embodiment 7 of the present invention also provides a method for preparing a nano sealant, comprising the following steps: and (2) mixing 26.5 parts by weight of film forming agent, 3.5 parts by weight of solvent, 12 parts by weight of stabilizer, 1.5 parts by weight of cross-linking agent and 57.5 parts by weight of water, and uniformly stirring.
Example 8
Embodiment 8 of the present invention provides a nano sealing agent, which comprises the following components, by weight: 26.5 parts of film forming agent, 3.5 parts of solvent, 12 parts of stabilizing agent and 1.5 parts of crosslinking agent.
The film forming agent is nano silica sol and a silane coupling agent.
The film forming agent contains 19.5 parts by weight of nano silica sol and 7 parts by weight of silane coupling agent.
The concentration of the nano silica sol is 30 wt%.
The average grain diameter of the nano silica sol is 10 nm.
The silane coupling agent is 3- (2, 3-epoxypropoxy) propyl trimethoxy silane or vinyl triethoxy silane.
4.5 parts of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane and 2.5 parts of vinyl triethoxy silane.
The solvent is ethylene glycol butyl ether.
The stabilizer is methanol.
The cross-linking agent is tri (ethyl acetoacetoxy) aluminum.
Embodiment 8 of the present invention also provides a method for preparing a nano sealant, comprising the following steps: and (2) mixing 26.5 parts by weight of film forming agent, 3.5 parts by weight of solvent, 12 parts by weight of stabilizer, 1.5 parts by weight of cross-linking agent and 57.5 parts by weight of water, and uniformly stirring.
Example 9
Embodiment 9 of the present invention provides a nano sealing agent, which comprises the following components in parts by weight: 26.5 parts of film forming agent, 3.5 parts of solvent, 12 parts of stabilizing agent and 1.5 parts of crosslinking agent.
The film forming agent is nano silica sol and a silane coupling agent.
The film forming agent contains 19.5 parts by weight of nano silica sol and 7 parts by weight of silane coupling agent.
The concentration of the nano silica sol is 30 wt%.
The average grain diameter of the nano silica sol is 10 nm.
The silane coupling agent is 3- (2, 3-epoxypropoxy) propyl trimethoxy silane or vinyl triethoxy silane.
4.5 parts of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane and 2.5 parts of vinyl triethoxy silane.
The solvent is ethylene glycol butyl ether.
The stabilizer is ethanol.
The cross-linking agent is tri (ethyl acetoacetoxy) aluminum.
Embodiment 9 of the present invention also provides a method for preparing a nano sealant, including the steps of: and (2) mixing 26.5 parts by weight of film forming agent, 3.5 parts by weight of solvent, 12 parts by weight of stabilizer, 1.5 parts by weight of cross-linking agent and 57.5 parts by weight of water, and uniformly stirring.
Performance evaluation
And (3) immersing the passivated and washed galvanized part and the nickel-plated part into the nano sealing agent prepared in the examples 1-9 for 30s, then taking out, firstly, sucking the redundant sealing agent on the surface by using filter paper, and then, baking for 30min at 150 ℃.
1. Fingerprint resistance
The coating layer after the treatment with the sealer was pressed with a finger, and the trace of the fingerprint on the coating layer was visually observed to evaluate the fingerprint resistance. And (4) judging the standard: good-no trace; poor-marked.
2. Corrosion resistance
And (3) performing a neutral salt spray test on the plating layer treated by the sealant according to GB/T10125-.
The results are shown in Table 1.
TABLE 1 results of the Performance test of the nano-sealants prepared in examples 1-9
According to experimental results, the nano sealing agent prepared by the method is used for sealing the plating layer, so that the fingerprint resistance and the corrosion resistance of the plating layer can be effectively improved.
The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. The use of some numerical ranges in the claims also includes sub-ranges within their range, and variations in these ranges are also to be construed as being covered by the appended claims where possible.
Claims (10)
1. The nano sealing agent is characterized by at least comprising the following components in parts by weight: 25-28 parts of film forming agent, 3-4 parts of solvent, 11-13 parts of stabilizer and 1-2 parts of cross-linking agent.
2. The nano-scale blocking agent according to claim 1, wherein the film forming agent is at least one selected from epoxy resin, acrylic resin, polyacrylamide, polyvinylpyrrolidone, polyurethane, nano-silica sol, and silane coupling agent.
3. The nano sealing agent as claimed in claim 2, wherein the film forming agent comprises 19-20 parts by weight of nano silica sol and 6-8 parts by weight of silane coupling agent.
4. The nanosealing agent of claim 3, wherein the nanosilicon sol has an average particle size of less than 20 nm.
5. The nano-scale blocking agent according to claim 3, wherein the silane coupling agent is at least one selected from the group consisting of 3-aminopropyltrimethoxysilane, 3- (2, 3-glycidoxy) propyltrimethoxysilane, 3- (methacryloyloxy) propyltrimethoxysilane, vinyltrimethoxysilane, vinyltriethoxysilane, and aminopropylmethyldiethoxysilane.
6. The nano-sealer according to claim 1, wherein the solvent is at least one selected from the group consisting of polyethylene glycol, 1, 2-propylene glycol, isopropyl alcohol, acetone, methyl ethyl ketone, and butyl glycol ether.
7. The nano-scale blocking agent of claim 1, wherein the stabilizing agent is selected from at least one of potassium pyrophosphate, sodium pyrophosphate, methanol, ethanol, propanol.
8. The nano-scale blocking agent according to claim 7, wherein the stabilizer comprises 6 to 7 parts by weight of methanol and 5 to 6 parts by weight of ethanol.
9. The nano-blocking agent of claim 1, wherein the cross-linking agent is selected from at least one of trimethylolmelamine, triethanolamine, aziridine, trimethylolpropane, and tris (ethylacetoacetato) aluminum.
10. A process for the preparation of a nanosealing agent as claimed in any of claims 1 to 9, characterized in that it comprises at least the following steps: mixing and stirring the film forming agent, the solvent, the stabilizer, the cross-linking agent and the water uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010012897.5A CN111117309A (en) | 2020-01-07 | 2020-01-07 | Nano sealing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010012897.5A CN111117309A (en) | 2020-01-07 | 2020-01-07 | Nano sealing agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111117309A true CN111117309A (en) | 2020-05-08 |
Family
ID=70488351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010012897.5A Withdrawn CN111117309A (en) | 2020-01-07 | 2020-01-07 | Nano sealing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111117309A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777879A (en) * | 2020-05-20 | 2020-10-16 | 德锡化学(山东)有限公司 | Water-soluble high-temperature-resistant sealing agent and preparation method thereof |
| CN112961517A (en) * | 2021-03-31 | 2021-06-15 | 安徽瑞合铁路紧固件科技有限公司 | Preparation method of nano sealing agent for railway fastener processing |
| CN113234344A (en) * | 2021-05-13 | 2021-08-10 | 中山市富日印刷材料有限公司 | Low-VOC (volatile organic compound) environment-friendly printing ink cleaning agent and preparation method thereof |
| CN113502520A (en) * | 2021-06-30 | 2021-10-15 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for electroplated copper layer and hole sealing method |
| CN113549905A (en) * | 2021-06-30 | 2021-10-26 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for chemical nickel plating layer and hole sealing method |
| CN116640510A (en) * | 2023-06-27 | 2023-08-25 | 青岛普泰纳米新材料科技有限公司 | Corrosion-resistant water-soluble galvanization sealing agent and preparation method and use method thereof |
-
2020
- 2020-01-07 CN CN202010012897.5A patent/CN111117309A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111777879A (en) * | 2020-05-20 | 2020-10-16 | 德锡化学(山东)有限公司 | Water-soluble high-temperature-resistant sealing agent and preparation method thereof |
| CN112961517A (en) * | 2021-03-31 | 2021-06-15 | 安徽瑞合铁路紧固件科技有限公司 | Preparation method of nano sealing agent for railway fastener processing |
| CN113234344A (en) * | 2021-05-13 | 2021-08-10 | 中山市富日印刷材料有限公司 | Low-VOC (volatile organic compound) environment-friendly printing ink cleaning agent and preparation method thereof |
| CN113502520A (en) * | 2021-06-30 | 2021-10-15 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for electroplated copper layer and hole sealing method |
| CN113549905A (en) * | 2021-06-30 | 2021-10-26 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for chemical nickel plating layer and hole sealing method |
| CN113502520B (en) * | 2021-06-30 | 2023-01-31 | 惠州市安泰普表面处理科技有限公司 | Sealing agent suitable for electroplated copper layer and hole sealing method |
| CN116640510A (en) * | 2023-06-27 | 2023-08-25 | 青岛普泰纳米新材料科技有限公司 | Corrosion-resistant water-soluble galvanization sealing agent and preparation method and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111117309A (en) | Nano sealing agent and preparation method thereof | |
| CN110157296B (en) | Graphite-like phase carbon nitride/epoxy resin corrosion-resistant coating and preparation method and application thereof | |
| WO2020000559A1 (en) | Silane/graphene oxide composite passivation solution and preparation method therefor and application thereof | |
| ES2939587T3 (en) | Procedure for coating metal surfaces of substrates and objects coated according to this procedure | |
| CN108103489A (en) | A kind of complexing nano film forming agent | |
| CN102703892A (en) | Microarc-oxidized coating silylation fluid and hole sealing method thereby | |
| CN101899657B (en) | Chromium-free passivating treatment agent and method for preparing same | |
| CN100535198C (en) | Surface treatment method for improving corrosion stability of magnesium alloy | |
| CN102390936A (en) | Method for preparing corrosion-resisting and self-cleaning coating | |
| CN109402699A (en) | A kind of aluminum alloy surface acid resistance corrosion function ceramic membrane preparation process | |
| CN108102447A (en) | A kind of preparation method and its usage of silica doped modified protective coating | |
| CN108129885A (en) | Hydroxyl graphene is modified coating sealer and preparation method thereof | |
| EP3153552A1 (en) | Anti-corrosion coating | |
| CN111235620A (en) | Electrophoresis coating process for vehicle frame | |
| CN110527995B (en) | Application of MXene/silane surface composite silane film in metal corrosion protection | |
| CN109338430B (en) | Preparation method of silane/epoxy resin-GO-silane multilayer protective film covering metal surface | |
| CN113402977A (en) | Composite antifouling paint capable of controllably releasing cuprous oxide and preparation method thereof | |
| CN104278260B (en) | A kind of silanization treating agent for aluminum alloy surface and preparation method thereof | |
| CN104419297A (en) | Anti-corrosion dope for protecting magnesium alloy and preparation method thereof | |
| CN113698848A (en) | Water-based nanosheet composite coating and preparation method and application thereof | |
| CN109252200A (en) | A kind of aluminum alloy die casting surface treatment method | |
| CN115558915B (en) | Magnesium alloy high corrosion-resistant hydrophobic sealing agent and preparation method thereof | |
| CN114958056B (en) | Ti 3 C 2 T x @ZnAl-MoO 4 LDH composite corrosion inhibitor, preparation method thereof and composite coating | |
| CN114806347B (en) | Anticorrosive paint and preparation method thereof | |
| CN113046689B (en) | Super-hydrophobic corrosion-resistant aluminum alloy for biomedical treatment and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200508 |