WO2017063406A1 - 一种铝合金压铸件缺陷修补剂 - Google Patents

一种铝合金压铸件缺陷修补剂 Download PDF

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Publication number
WO2017063406A1
WO2017063406A1 PCT/CN2016/089455 CN2016089455W WO2017063406A1 WO 2017063406 A1 WO2017063406 A1 WO 2017063406A1 CN 2016089455 W CN2016089455 W CN 2016089455W WO 2017063406 A1 WO2017063406 A1 WO 2017063406A1
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component
epoxy resin
bisphenol
optional
agent
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PCT/CN2016/089455
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English (en)
French (fr)
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王金娥
邵聪
赖晓明
杨洪亮
谭海丰
张晓辉
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中兴通讯股份有限公司
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Publication of WO2017063406A1 publication Critical patent/WO2017063406A1/zh

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • 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
    • C09D5/10—Anti-corrosive paints containing metal dust
    • C09D5/103—Anti-corrosive paints containing metal dust containing Al
    • 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
    • C09D5/24—Electrically-conducting 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
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • 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
    • C09D7/65—Additives macromolecular
    • 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
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • 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

Definitions

  • This application relates to, but is not limited to, the field of chemical materials.
  • Aluminum alloy die-casting parts may have defects such as pores, shrinkage holes, blisters, cracks, etc., which affect the electromagnetic shielding performance and appearance of the communication device housing, resulting in the scrapping of the die-cast housing and the increase in production cost.
  • the manufacturer will use some repairing measures to remedy the defects of die-casting parts.
  • the main component of the existing aluminum alloy die-casting defect repairing agent is amine-cured epoxy resin mixed with a small amount of aluminum flakes, which can fill the pores and sand holes. Patching can improve the appearance of the communication device housing, but it has the following disadvantages:
  • the repairing agent made of conductive silver powder or silver-coated copper powder and epoxy resin has good electrical and thermal conductivity, but its appearance is not good, especially under high temperature conditions, silver is oxidized, and the color is yellowish and dark, and Die-cast aluminum substrates have large differences in appearance color, and also have problems of high temperature shrinkage and poor toughness, and the repair effect is also poor.
  • the present application provides a defect repairing agent for aluminum alloy die-casting parts.
  • the aluminum alloy die-casting part defect repairing agent of the present application is mainly composed of two components, and is a paste-like and general-purpose type.
  • the aluminum alloy die-casting defect repairing agent of the present application can be used for filling pores, shrinkage cavities, blisters and cracks of different sizes of castings, and the working temperature can reach -60 ° C to 210 ° C at high temperature.
  • the present application provides an aluminum alloy die casting defect repairing agent, which can be made from a raw material comprising the following first component and second component:
  • the first component can be made from the following components: polypropylene glycol diglycidyl ether, fluorescent whitening agent, antioxidant, silver-coated copper powder, non-floating aluminum powder, optional nano silica modified double a phenolic F type epoxy resin and optionally a bisphenol A type epoxy resin;
  • the second component can be made from the following components: methylcyclohexanediamine, optional spirocyclic diamine, bisphenol A type epoxy resin, optional liquid petroleum resin, and coupling agent.
  • the mass ratio of the first component to the second component may be from 7:1 to 8:1. Those skilled in the art will appreciate that such ratios can be reasonably selected based on actual conditions and desired technical effects.
  • the mass ratio of the polypropylene glycol diglycidyl ether, the fluorescent whitening agent, the antioxidant, the copper-coated copper powder and the non-floating aluminum powder may be from 2 to 3:00 05 to 1:0.3 to 0.5. : 48 to 52: 8 to 10. Those skilled in the art will appreciate that such ratios can be reasonably selected based on actual conditions and desired technical effects.
  • the first component is made of the following components: polypropylene glycol diglycidyl ether, fluorescent whitening agent, antioxidant, silver-coated copper powder, non-floating aluminum powder, nanometer Silica-modified bisphenol F-type epoxy resin and bisphenol A-type epoxy resin.
  • the mass ratio of the nano silica modified bisphenol F type epoxy resin to the bisphenol A type epoxy resin may be from 10 to 12:25 to 30. Those skilled in the art will appreciate that such ratios can be reasonably selected based on actual conditions and desired technical effects.
  • the polypropylene glycol diglycidyl ether, the fluorescent whitening agent, and the antioxidant The ratio of the total weight of the chemical agent, the silver-coated copper powder and the non-floating aluminum powder to the mass of the nano-silica modified bisphenol F-type epoxy resin and the total weight of the bisphenol A-type epoxy resin may be It is 58.305 to 66.5:35 to 42. Those skilled in the art will appreciate that such ratios can be reasonably selected based on actual conditions and desired technical effects.
  • the first component is calculated based on the total weight of the first component
  • the following components are prepared: polypropylene glycol diglycidyl ether 2% to 3%, fluorescent whitening 0.005% to 1%, optional nano silica modified bisphenol F epoxy resin 10% to 12%, optional bisphenol A epoxy resin 25% to 30%, antioxidant 0.3% to 0.5% , silver-coated copper powder 48% to 52%, non-floating aluminum powder 8% to 10%.
  • the polypropylene glycol diglycidyl ether is an epoxy group reactive diluent, for example, polypropylene glycol diglycidyl ether having an epoxy equivalent of 310 g/eq to 330 g/eq can be used for participating in the crosslinking reaction, and reducing The viscosity of the system serves as a solvent for pre-dissolving the optical brightener.
  • polypropylene glycol diglycidyl ether described herein can be a commercial product.
  • the optical brightener may be selected from the group consisting of 2,5-bis-(5-tert-butyl-2-benzoxazolyl)thiophene (OB), 2.2'-(4, One or more of 4'-distyryl-) bisbenzoxazole (OB1), 4,4-bis(5-methyl-2-benzoxazolyl)stilbene (KSN) .
  • the function of the fluorescent whitening agent is to eliminate the yellow color of the silver-coated copper powder, improve the whiteness of the aluminum alloy die-casting defect repairing agent, and improve the appearance of repairing.
  • the fluorescent whitening agent may be a fluorescent dye such as a fluorescent dye having a chemical composition of 2,5-bis(5-tert-butyl-2-benzoxazole)thiophene (OB).
  • OB 2,5-bis(5-tert-butyl-2-benzoxazole)thiophene
  • the antioxidant may be one or more selected from the group consisting of epoxy-specific high-efficiency antioxidant grades V76-P, V78-P, V85-P.
  • the role of the antioxidant is to reduce the oxidation and yellowing of the epoxy resin under room temperature and high temperature conditions, and to improve the aging resistance of the repair agent.
  • the main component of the antioxidant may be a phosphite (such as an antioxidant having a rating of V76-P).
  • the silver-coated copper powder may be a sheet copper having a silver plating layer. Powder, which acts as a conductive and thermally conductive filler in the system.
  • the flake copper powder may have a particle diameter of 400 mesh and a silver content of 25 wt%.
  • the non-floating aluminum powder may be a surface-treated sheet-like aluminum powder which functions to provide a color appearance such that the color of the repair agent is close to the color of the aluminum alloy.
  • the aluminum flakes may have a particle size of 1000 mesh.
  • the nano silica modified bisphenol F type epoxy resin may be a nano silica enhanced standard bisphenol F type epoxy resin, which is a film forming substance in the system, and The curing agent is crosslinked, and since the nano silica is contained therein, the toughness of the cured product can be improved, and the notched impact strength can be improved.
  • the nano-silica reinforced standard bisphenol F-type epoxy resin may have a nano silica content of 40% by weight and an epoxy equivalent weight of from 265 g/eq to 300 g/eq.
  • nano silica modified bisphenol F type epoxy resin described in the present application may be a commercially available product.
  • the bisphenol A type epoxy resin used to prepare the first component is a system main film-forming substance, which is cross-linked with a curing agent to provide strength of the material, optionally epoxy equivalent. It is from 182 g/eq to 190 g/eq.
  • the bisphenol A type epoxy resin described in the present application may be a commercially available product.
  • the composition comprises: methylcyclohexanediamine 35%-40%, bisphenol A Type epoxy resin 20%-25%, coupling agent 0.5%-1%, optional spirobiamine 20%-25%, optional liquid petroleum resin 15%-20%.
  • the methylcyclohexanediamine (for example, N,N'-dimethyl-1,2-cyclohexanediamine) may be a main component of a curing agent, which is crosslinked with an epoxy resin to form a high strength. Three-dimensional materials.
  • the spirobiamine functions to improve the cured product properties of methylcyclohexanediamine, improve toughness and reduce shrinkage, and increase the notched impact strength of the cured product.
  • the spirobiamine may be a flexible curing agent, for example, a chemical composition of 3,9-bis(3-aminopropylidene)-2,4,8,10-tetraoxaspiro[5, 5] Softness of undecane, fatty amine, alicyclic amine, aromatic amine, acid anhydride, etc. Sex curing agent.
  • the bisphenol A type epoxy resin used to prepare the second component may be a main film-forming substance of the system, which is cross-linked with a curing agent to provide strength of the material, optionally epoxy.
  • the equivalent weight is from 182 g/eq to 190 g/eq; its function is to pre-react with an amine curing agent to form an intermediate product, improve the compatibility of component one and component two, and improve the appearance of the cured product of the final product.
  • the liquid petroleum resin may be a phenolic hydroxyl group-containing polyolefin resin, optionally having a hydroxyl group content of 7.0 wt% to 7.4 wt%, which functions as a modifier to increase the curing speed of the system. And to improve the water resistance and flexibility of the cured product.
  • liquid petroleum resin described herein may be a commercially available product.
  • the coupling agent may be one or more selected from the group consisting of ⁇ -aminopropyltrimethoxysilane and ⁇ -aminopropyltriethoxysilane.
  • the coupling agent acts to improve the adhesion of the repair agent on the substrate.
  • the present application provides a method of preparing the above aluminum alloy die casting defect repairing agent, and the method may include:
  • the first component and the second component are mixed and stirred uniformly to obtain the defect repairing agent.
  • the preparing the first component can include:
  • Optional nano silica modified bisphenol F type epoxy resin, optional bisphenol A type epoxy tree Mixing the lipid, the antioxidant and the fluorescent whitening agent solution, and stirring the mixture to obtain a first component mixture preliminary material;
  • Silver-coated copper powder and non-floating aluminum powder are added to the first component mixture preliminary material, stirred, and uniformly mixed to obtain a first component.
  • the optional nano silica modified bisphenol F type epoxy resin, optionally a bisphenol A type epoxy resin, an antioxidant, and an optical brightener solution are mixed, Stirring the mixture to obtain the first component mixture may include:
  • the heating temperature may be from 40 ° C to 60 ° C.
  • the treatment time of the agitation treatment may be from 5 min to 10 min.
  • the silver-coated copper powder and the non-floating aluminum powder may be added to the first component mixture preliminary material, continue to be agitated, and optionally, the processing time of the stirring treatment is continued. It can be from 25min to 35min.
  • the preparing the first component may further include:
  • the silver-coated copper powder, the non-floating aluminum powder, and the first component mixture preliminary material which have been uniformly stirred are subjected to vacuum defoaming treatment, and bubbles therein are removed, thereby preparing the first component.
  • the treatment time of the vacuum defoaming treatment may be from 5 min to 10 min.
  • the mass ratio of the first component to the second component may be from 7:1 to 8:1. Those skilled in the art will appreciate that such ratios can be reasonably selected based on actual conditions and desired technical effects.
  • the mass ratio of the polypropylene glycol diglycidyl ether, the fluorescent whitening agent, the antioxidant, the copper-coated copper powder and the non-floating aluminum powder may be from 2 to 3:00 05 to 1:0.3 to 0.5. : 48 to 52: 8 to 10. Those skilled in the art will appreciate that such ratios can be reasonably selected based on actual conditions and desired technical effects.
  • the first component is made of the following components: polypropylene glycol diglycidyl ether, fluorescent whitening agent, antioxidant, silver-coated copper powder, non-floating aluminum powder, nanometer Silica-modified bisphenol F-type epoxy resin and bisphenol A-type epoxy resin.
  • the mass ratio of the nano silica modified bisphenol F type epoxy resin to the bisphenol A type epoxy resin may be from 10 to 12:25 to 30. Those skilled in the art will appreciate that such ratios can be reasonably selected based on actual conditions and desired technical effects.
  • the total weight of the polypropylene glycol diglycidyl ether, the fluorescent whitening agent, the antioxidant, the copper-coated copper powder and the non-floating aluminum powder and the nano silica modified bisphenol F type epoxy resin may range from 58.305 to 66.5:35 to 42. Those skilled in the art will appreciate that such ratios can be reasonably selected based on actual conditions and desired technical effects.
  • the first component is calculated based on the total weight of the first component
  • the following components are prepared: polypropylene glycol diglycidyl ether 2% to 3%, fluorescent whitening 0.005% to 1% agent, 0.3% to 0.5% antioxidant, 48% to 52% copper powder, 8% to 10% non-floating aluminum powder, optional nano silica modified bisphenol F ring Oxygen resin 10%-12% and optional bisphenol A type epoxy resin 25%-30%.
  • polypropylene glycol diglycidyl ether 2% to 3%
  • fluorescent whitening 0.005% to 1% agent 0.3% to 0.5% antioxidant
  • 48% to 52% copper powder
  • copper powder 8% to 10% non-floating aluminum powder
  • optional nano silica modified bisphenol F ring Oxygen resin 10%-12% and optional bisphenol A type epoxy resin 25%-30% Those skilled in the art will appreciate that such percentage values can be reasonably selected based on actual conditions and desired technical effects.
  • the polypropylene glycol diglycidyl ether is an epoxy group reactive diluent, for example, polypropylene glycol diglycidyl ether having an epoxy equivalent of 310 g/eq to 330 g/eq can be used for participating in the crosslinking reaction, and reducing The viscosity of the system serves as a solvent for pre-dissolving the optical brightener.
  • polypropylene glycol diglycidyl ether described herein can be a commercial product.
  • the optical brightener may be selected from the group consisting of 2.5-bis-(5-tert-butyl-2-benzoxazolyl)thiophene (OB), 2.2'-(4,4' One or more of -distyryl-)bisbenzoxazole (OB1), 4,4-bis(5methyl-2-benzoxazolyl)stilbene (KSN).
  • OB 2.5-bis-(5-tert-butyl-2-benzoxazolyl)thiophene
  • OB1 2.2'-(4,4' One or more of -distyryl-)bisbenzoxazole
  • KSN 4,4-bis(5methyl-2-benzoxazolyl)stilbene
  • the function of the fluorescent whitening agent is to eliminate the yellow color of the silver-coated copper powder, improve the whiteness of the aluminum alloy die-casting defect repairing agent, and improve the appearance of repairing.
  • the optical brightener may be a fluorescent dye such as a fluorescent dye having a chemical composition of 2.5-bis-(5-tert-butyl-2-benzoxazolyl)thiophene (OB).
  • OB 2.5-bis-(5-tert-butyl-2-benzoxazolyl)thiophene
  • the antioxidant may be one or more selected from the group consisting of epoxy-specific high-efficiency antioxidant grades V76-P, V78-P, V85-P.
  • the role of the antioxidant is to reduce the oxidation and yellowing of the epoxy resin under room temperature and high temperature conditions, and to improve the aging resistance of the repair agent.
  • the main component of the antioxidant may be a phosphite (such as an antioxidant having a rating of V76-P).
  • the silver-coated copper powder may be a sheet-like copper powder having a silver plating layer, which functions as a conductive and thermally conductive filling in the system.
  • the flake copper powder may have a particle diameter of 400 mesh and a silver content of 25 wt%.
  • the non-floating aluminum powder may be a surface-treated sheet-like aluminum powder which functions to provide a color appearance such that the color of the repair agent is close to the color of the aluminum alloy.
  • the aluminum flakes may have a particle size of 1000 mesh.
  • the nano silica modified bisphenol F type epoxy resin may be a nano silica enhanced standard bisphenol F type epoxy resin, which is a film forming substance in the system, and The curing agent is crosslinked, and since the nano silica is contained therein, the toughness of the cured product can be improved, and the notched impact strength can be improved.
  • the nano-silica reinforced standard bisphenol F-type epoxy resin may have a nano silica content of 40% by weight and an epoxy equivalent weight of from 265 g/eq to 300 g/eq.
  • nano silica modified bisphenol F type epoxy resin described in the present application may be a commercially available product.
  • the bisphenol A type epoxy resin used to prepare the first component is a system main film-forming substance, which is cross-linked with a curing agent to provide strength of the material, optionally epoxy equivalent. It is from 182 g/eq to 190 g/eq.
  • the bisphenol A type epoxy resin described in the present application may be a commercially available product.
  • the preparation of the second component may comprise:
  • a liquid petroleum resin and a coupling agent are added to the second mixture of the second component and stirred uniformly to obtain the second component.
  • the methylcyclohexanediamine and spirobiamine may be heated to a temperature of from 90 ° C to 100 ° C, followed by stirring.
  • the stirring speed of the stirring treatment may be from 190 r/min to 210 r/min.
  • the agitation time of the agitation treatment may be from 5 min to 10 min.
  • the first mixture of the second component may be cooled to 40 ° C to 60 ° C, and then the bisphenol A type epoxy resin may be dropwise added thereto with stirring.
  • the bisphenol A type epoxy resin may be added dropwise over a period of 50 minutes to 60 minutes.
  • the stirring speed of the stirring treatment may be from 190 r/min to 210 r/min.
  • the second mixture of the second component is incubated at a temperature of 40 ° C to 60 ° C for 4 h to 5 h, and the liquid petroleum resin and the coupling agent are added to the second component of the second component. In the mixture, it was stirred.
  • the stirring speed of the stirring treatment may be from 190 r/min to 210 r/min.
  • the stirring time of the stirring treatment may be from 10 min to 15 min.
  • the composition comprises: methylcyclohexanediamine 35% to 40%, bisphenol A
  • the epoxy resin is 20% to 25%
  • the coupling agent is 0.5% to 1%
  • the optional spirobiamine is 20% to 25%
  • the optional liquid petroleum resin is 15% to 20%.
  • methylcyclohexanediamine for example, N,N'-dimethyl-1,2-cyclohexanediamine
  • the main component of the agent which is crosslinked with an epoxy resin, can form a high-strength three-dimensional material.
  • the spirobiamine functions to improve the cured product properties of methylcyclohexanediamine, improve toughness and reduce shrinkage, and increase the notched impact strength of the cured product.
  • the spirobiamine may be a flexible curing agent, for example, a chemical composition of 3,9-bis(3-aminopropylidene)-2,4,8,10-tetraoxaspiro[5, 5] undecane, 3,9-bis(3-aminopropylidene)-2,4,8,10-tetraoxaspiro[5,5]undecane, fatty amine, alicyclic amine, aromatic
  • a flexible curing agent such as an amine or an acid anhydride.
  • the bisphenol A type epoxy resin used to prepare the second component may be a main film-forming substance of the system, which is cross-linked with a curing agent to provide strength of the material, optionally epoxy.
  • the equivalent weight is from 182 g/eq to 190 g/eq; its function is to pre-react with an amine curing agent to form an intermediate product, improve the compatibility of component one and component two, and improve the appearance of the cured product of the final product.
  • the liquid petroleum resin may be a phenolic hydroxyl group-containing polyolefin resin, optionally having a hydroxyl group content of 7.0 wt% to 7.4 wt%, which functions as a modifier to increase the curing speed of the system. And to improve the water resistance and flexibility of the cured product.
  • liquid petroleum resin described herein may be a commercially available product.
  • the coupling agent may be one or more selected from the group consisting of ⁇ -aminopropyltrimethoxysilane and ⁇ -aminopropyltriethoxysilane.
  • the coupling agent acts to improve the adhesion of the repair agent on the substrate.
  • the first component and the second component are mixed and stirred uniformly to thereby obtain the aluminum alloy die casting defect repairing agent, optionally, the first component and the second component.
  • the mass ratio of the points is 7:1 to 8:1.
  • the aluminum alloy die-casting defect repairing agent of the present application can be applied to the repair of pores, shrinkage holes, blisters and cracks of different size die-casting parts, and has strong adhesion to aluminum alloy substrates, and is applied to cold-rolled steel sheets, galvanized steel sheets and magnesium.
  • Metal substrates such as alloys also exhibit excellent adhesion and are suitable for a wide range of applications.
  • the aluminum alloy die-casting defect repairing agent of the present application has the function of conductive heat conduction function, and the repairing agent of the present application does not affect the electromagnetic shielding function and heat conduction of the aluminum alloy die-casting communication device housing compared with the existing aluminum alloy die-casting defect repairing agent.
  • the aluminum alloy die-casting defect repairing agent of the present application has good thermal conductivity and fast heat dissipation, and can make The repaired aluminum alloy die casting is not affected by the temperature rise generated during operation.
  • the aluminum alloy die-casting defect repairing agent of the present application has good high temperature resistance and low high temperature shrinkage. Under high temperature conditions, color change and heat shrinkage do not occur at the repairing position.
  • the aluminum alloy die-casting defect repairing agent of the present application has good impact resistance, and is also excellent in acid and alkali resistance and corrosion resistance.
  • the aluminum alloy die-casting defect repairing agent of the present application has a part of non-floating aluminum powder and fluorescent whitening agent added in the formulation, so that the repairing position has a better color appearance, and the color of the substrate is similar, and the color is also cured after high temperature curing. No change, no yellowing.
  • the preparation method of the aluminum alloy die-casting defect repairing agent of the present application is simple and quick, and the first component and the second component can be prepared by uniformly mixing, and does not need long-time curing, and is very suitable for designing a small package to be carried and constructed according to common articles. .
  • the reagents and raw materials used in the examples of the present application are all commercially available, and the instruments used are conventional commercially available instruments. In different embodiments, the same reagent source is the same.
  • polypropylene glycol diglycidyl ether (producer is Guangzhou Yifu Chemical Materials Co., Ltd.) 2.5%, fluorescent whitening agent (2,5-di (5-tert-butylbenzone) Oxazole-2'-)thiophene, the manufacturer is Shanghai Hongshun Biotechnology Co., Ltd.) 0.01%, nano silica modified bisphenol F epoxy resin (manufacturer is Shenzhen Chuchuang Applied Materials Co., Ltd., brand ICAM 8650 11%, bisphenol A epoxy resin (producer is East China University of Science and Technology Huachang Polymer Co., Ltd.) 27.5%, antioxidant (the main component is phosphite, the manufacturer is Guangzhou Zhiyi Chemical Co., Ltd., grade: V76-P) 0.4%, silver-coated copper powder (producer is Huizhou Tenghui Technology Co., Ltd.) 49.59% And non-floating aluminum powder (producer is Zhengzhou
  • methylcyclohexanediamine (manufacturer is Ningxia Dongke Petrochemical Co., Ltd.) 37.8%, spirodiamine (3,9-bis(3-aminopropylidene)-2 , 4,8,10-tetraoxaspiro[5,5]undecane, produced by Ningxia Dongke Petrochemical Co., Ltd.) 22.5%, bisphenol A epoxy resin (producer is Huachang, East China University of Science and Technology) Polymer Co., Ltd.) 22%, liquid petroleum resin (brand name is LS500 of Lutger, Germany) 17%, ⁇ -aminopropyltrimethoxysilane (manufacturer is Nanjing Lithium Chemical Co., Ltd.) 0.7%.
  • the silver-coated copper powder and the non-floating aluminum powder are added into the first component mixture through the feeding port of the vacuum mixer, and the revolution speed of the vacuum mixer is adjusted to be 50 r/min, and the auto-transmission speed is 900 r/min. Stirring treatment for 30 min;
  • the vacuum pump was turned on to defoam the mixture in vacuum stirring and the mixture for 7 min, wherein the vacuum degree of the vacuum pump was -0.097 MPa;
  • the vacuum pump was turned off, stirring was stopped, and deflation was performed to prepare a first component.
  • the second component second mixture is incubated at 50 ° C for 4.5 h, and then the liquid petroleum resin and ⁇ -ammonia Propyltrimethoxysilane was added to the second component second mixture and stirred at a rate of 200 r/min for 12 min to prepare a second component.
  • the prepared first component and the second component were uniformly mixed, wherein the mass ratio of the first component to the second component was 7.5:1, thereby obtaining an aluminum alloy die-casting defect repairing agent.
  • the performance of the repair agent was measured after curing at 25 ° C for 7 days as follows:
  • Adhesion 12MPa, GB/T 5210; Shore hardness (A): 89, GB/T 2411; Tensile strength: 17MPa, ASTM D 638; Compressive strength: 82MPa, ASTM D 695; Notched impact strength: 42J/m , ASTM D 256; volume resistivity: 2 ⁇ 10 -4 ⁇ ⁇ m, GB / T 15662; thermal conductivity: 12.7W / (m ⁇ K), GB / T 10297; volume shrinkage (190 ° C, 30min): 0.9 %; ISO 3521; aging test (120 ° C, 6 h): the color change is less than 2, and the standard GB/T 1766 is judged.
  • the test substrate is an aluminum alloy plate, and the test standards are the latest standards corresponding to the standards.
  • polypropylene glycol diglycidyl ether (producer is Guangzhou Yifu Chemical Materials Co., Ltd.) 2%, fluorescent whitening agent (2,5-di (5-tert-butylbenzone) Oxazole-2'-)thiophene, the manufacturer is Shanghai Hongshun Biotechnology Co., Ltd.) 0.005%, nano silica modified bisphenol F epoxy resin (manufacturer is Shenzhen Chuangchuang Applied Materials Co., Ltd., brand ICAM 8650 12%, bisphenol A epoxy resin (producer is East China University of Science and Technology Huachang Polymer Co., Ltd.) 25%, antioxidant (main component is phosphite, Guangzhou Zhiyi Chemical Co., Ltd., grade: V76-P 0.5%, silver-coated copper powder (producer is Huizhou Tenghui Technology Co., Ltd.) 50.495% and non-floating aluminum powder (producer is Zhengzhou Aerospace Aluminum Co.
  • methylcyclohexanediamine manufactured by Ningxia Dongke Petrochemical Co., Ltd.
  • spirodiamine (3,9-bis(3-aminopropylidene)-2 , 4,8,10-tetraoxaspiro[5,5]undecane, produced by Ningxia Dongke Petrochemical Co., Ltd.) 25%
  • bisphenol A epoxy resin producer is Huachang, East China University of Science and Technology) Polymer Co., Ltd.
  • liquid petroleum resin brand is German National Lütger's LS500
  • ⁇ -aminopropyltrimethoxysilane producer is Nanjing Liansil Chemical Co., Ltd. 0.5%.
  • the silver-coated copper powder and the non-floating aluminum powder are added into the first component mixture through the feeding port of the vacuum mixer, and the revolution speed of the vacuum mixer is adjusted to 55 r/min, and the auto-transmission speed is 850 r/min. Stirring treatment for 35 min;
  • the vacuum pump was turned on to defoam the mixture in vacuum stirring and the mixture for 10 min, wherein the vacuum degree of the vacuum pump was -0.095 MPa;
  • the vacuum pump was turned off, stirring was stopped, and deflation was performed to prepare a first component.
  • the second component second mixture was incubated at 40 ° C for 5 h, and liquid petroleum resin and ⁇ -aminopropyltrimethoxysilane were added to the second component second mixture at a speed of 205 r/min. Stir for 10 min to prepare a second component.
  • the prepared first component and the second component were uniformly mixed, wherein the mass ratio of the first component to the second component was 7:1, thereby obtaining an aluminum alloy die-casting defect repairing agent.
  • the performance of the repair agent was measured after curing at 25 ° C for 7 days as follows:
  • Adhesion 13.5MPa, GB/T 5210; Shore hardness (A): 85, GB/T 2411; Tensile strength: 16.5MPa, ASTM D 638; Compressive strength: 78MPa, ASTM D 695; Notched impact strength: 45J /m, ASTM D 256; volume resistivity: 2.2 ⁇ 10 -4 ⁇ ⁇ m, GB / T 15662; thermal conductivity: 11.9W / (m ⁇ K), GB / T 10297; volume shrinkage (190 ° C, 30 min) : 0.9%; ISO 3521; aging test (120 ° C, 6 h): the color change is less than 2, and the standard GB/T 1766 is judged.
  • the test substrate is an aluminum alloy plate, and the test standards are the latest standards corresponding to the standards.
  • polypropylene glycol diglycidyl ether (producer is Guangzhou Yifu Chemical Materials Co., Ltd.) 3%, fluorescent whitening agent (2,5-di (5-tert-butylbenzone) Oxazole-2'-)thiophene, produced by Shanghai Hongshun Biotechnology Co., Ltd.) 0.7%, nano-silica modified bisphenol F-type epoxy resin (manufacturer is Shenzhen Chuchuang Applied Materials Co., Ltd., brand ICAM 8650 10%, bisphenol A epoxy resin (producer is East China University of Science and Technology Huachang Polymer Co., Ltd.) 30%, antioxidant (the main component is phosphite, the manufacturer is Guangzhou Zhiyi Chemical Co., Ltd., grade: V76-P) 0.3%, silver-coated copper powder (producer is Huizhou Tenghui Technology Co., Ltd.) 48%, non-floating aluminum powder (manufacturer is Zhengzhou Aerospace
  • methylcyclohexanediamine (manufacturer is Ningxia Dongke Petrochemical Co., Ltd.) 40%, spirodiamine (3,9-bis(3-aminopropylidene)-2 , 4,8,10-tetraoxaspiro[5,5]undecane, produced by Ningxia Dongke Petrochemical Co., Ltd.) 20%, bisphenol A epoxy resin (producer is Huachang, East China University of Science and Technology) Polymer Co., Ltd.) 23%, liquid petroleum resin (brand name is LS500 of Lutger, Germany) 16.5%, ⁇ -aminopropyltriethoxysilane (manufacturer is Nanjing Lithium Chemical Co., Ltd.) 0.5%.
  • the silver-coated copper powder and the non-floating aluminum powder are added into the first component mixture through the feeding port of the vacuum mixer, and the revolution speed of the vacuum mixer is adjusted to 40 r/min, and the auto-transmission speed is 1000 r/min. Stirring treatment for 33 min;
  • the vacuum pump was turned on to defoam the mixture in vacuum stirring and the mixture for 8 min, wherein the vacuum degree of the vacuum pump was -0.0955 MPa;
  • the vacuum pump was turned off, stirring was stopped, and gas was released to obtain a first component.
  • the second component second mixture was incubated at 55 ° C for 5 h, and liquid petroleum resin and ⁇ -aminopropyltriethoxysilane were added to the second component second mixture at a rate of 190 r/min. The mixture was stirred for 15 min to prepare a second component.
  • the prepared first component and the second component were uniformly mixed, wherein the mass ratio of the first component to the second component was 8:1, thereby obtaining an aluminum alloy die-casting defect repairing agent.
  • the performance of the repair agent was measured after curing at 25 ° C for 7 days as follows:
  • Adhesion 12.4MPa, GB/T 5210; Shore hardness (A): 86, GB/T 2411; Tensile strength: 15.2MPa, ASTM D 638; Compressive strength: 82MPa, ASTM D 695; Notched impact strength: 42J /m, ASTM D 256; volume resistivity: 2.5 ⁇ 10 -4 ⁇ ⁇ m, GB / T 15662; heat conduction Coefficient: 9.5W / (m ⁇ K), GB / T 10297; volume shrinkage (190 ° C, 30min): 1.0%; ISO 3521; aging test (120 ° C, 6h): color change is less than 2, the standard GB / T 1766.
  • the test substrate is an aluminum alloy plate, and the test standards are the latest standards corresponding to the standards.
  • polypropylene glycol diglycidyl ether producer is Guangzhou Yifu Chemical Materials Co., Ltd.
  • fluorescent whitening agent (2,5-di (5-tert-butylbenzone) Oxazole-2'-)thiophene, produced by Shanghai Hongshun Biotechnology Co., Ltd.
  • nano-silica modified bisphenol F-type epoxy resin manufactured by Shanghai Hongshun Biotechnology Co., Ltd.
  • nano-silica modified bisphenol F-type epoxy resin manufactured by Shanghai Hongshun Biotechnology Co., Ltd.
  • nano-silica modified bisphenol F-type epoxy resin manufactured by Shanghai Hongshun Biotechnology Co., Ltd.
  • nano-silica modified bisphenol F-type epoxy resin manufactured by Shanghai Hongshun Biotechnology Co., Ltd.
  • nano-silica modified bisphenol F-type epoxy resin manufactured by Shanghai Hongshun Biotechnology Co., Ltd.
  • nano-silica modified bisphenol F-type epoxy resin manufactured by Shanghai Hongshun Biotechnology Co., Ltd.
  • methylcyclohexanediamine (manufacturer is Ningxia Dongke Petrochemical Co., Ltd.) 36.5%, spirodiamine (3,9-bis(3-aminopropylidene)-2 , 4,8,10-tetraoxaspiro[5,5]undecane, produced by Ningxia Dongke Petrochemical Co., Ltd.) 22.5%, bisphenol A epoxy resin (producer is Huachang, East China University of Science and Technology) Polymer Co., Ltd.) 25%, liquid petroleum resin (brand LS500 from Lutger, Germany) 15%, ⁇ -aminopropyltriethoxysilane (manufacturer is Nanjing Lithium Chemical Co., Ltd.) 1%.
  • the silver-clad copper powder and the non-floating aluminum powder are added into the first component mixture through the feeding port of the vacuum mixer, and the revolution speed of the vacuum mixer is adjusted to be 60 r/min, and the auto-transmission speed is 800 r/min. Stirring treatment for 25 min;
  • the vacuum pump was turned on to defoam the mixture in vacuum stirring and the mixture for 5 min, wherein the vacuum degree of the vacuum pump was -0.099 MPa;
  • the vacuum pump was turned off, stirring was stopped, and gas was released to obtain a first component.
  • the second component second mixture was incubated at 60 ° C for 4 h, and liquid petroleum resin and ⁇ -aminopropyltriethoxysilane were added to the second component second mixture at a rate of 210 r/min. The mixture was stirred for 10 min to prepare a second component.
  • the prepared first component and the second component were uniformly mixed, wherein the mass ratio of the first component to the second component was 7.8:1, thereby obtaining an aluminum alloy die-casting defect repairing agent.
  • the performance of the repair agent was measured after curing at 25 ° C for 7 days as follows:
  • Adhesion 12.5MPa, GB/T 5210; Shore hardness (A): 87, GB/T 2411; Tensile strength: 16.9MPa, ASTM D 638; Compressive strength: 84MPa, ASTM D 695; Notched impact strength: 41J /m, ASTM D 256; volume resistivity: 1.8 ⁇ 10 -4 ⁇ ⁇ m, GB / T 15662; thermal conductivity: 13.5W / (m ⁇ K), GB / T 10297; volume shrinkage (190 ° C, 30 min) : 0.8%; ISO 3521; aging test (120 ° C, 6 h): the color change is less than 2, and the standard GB/T 1766 is judged.
  • the test substrate is an aluminum alloy plate, and the test standards are the latest standards corresponding to the standards.
  • the repairing agent prepared by the above embodiment of the present application has electrical conductivity, It has the characteristics of high temperature resistance, good toughness, low temperature shrinkage, high temperature aging and no yellowing. Therefore, it can solve the problems of non-conductivity, yellowing, shrinkage and toughness which are common in the repairing agents currently available in the market.
  • the aluminum alloy die-casting defect repairing agent provided by the embodiment of the present application can be used for filling pores, shrinkage cavities, blisters and cracks of castings of different sizes, and the working temperature can reach -60 ° C to 210 ° C, and does not change color under high temperature conditions. Black, consistent with the color of the die-casting aluminum alloy substrate; high bonding strength with the base metal, no shrinkage at high temperature after curing; high workability, good thixotropic; acid and alkali resistance, corrosion resistance; conductive and thermal conductivity.

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Abstract

一种铝合金压铸件缺陷修补剂，由包括以下第一组分和第二组分的原料制得：第一组分由包括以下的成分制得：聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉、非浮型铝粉、任选的纳米二氧化硅改性双酚F型环氧树脂和任选的双酚A型环氧树脂；第二组分由包括以下的成分制得：甲基环己二胺、任选的螺环二胺、双酚A型环氧树脂、任选的液体石油树脂和偶联剂。

Description

一种铝合金压铸件缺陷修补剂 技术领域
本申请涉及但不限于化学材料领域。
背景
铝合金压铸件会存在气孔、缩孔、砂眼、裂纹等缺陷，影响通讯设备壳体的电磁屏蔽性能和外观，导致压铸壳体报废，生产成本提高。
生产厂家对于压铸件缺陷会采用一些修补措施进行补救，市场上现有铝合金压铸件缺陷修补剂的主要成分是掺有少量片状铝粉的胺固化环氧树脂，可以对气孔、砂眼进行填充修补，能改善通讯设备壳体外观，但存在以下不足：
1、不具有导电功能，只具有一定的外观修补功能，修补后会在一定程度上影响通讯设备壳体的电磁屏蔽功能；
2、导热性不好，修补后的通讯设备壳体，散热性会受到影响，壳体关键部位在设备工作时会有超出允许的温升；
3、耐高温性能不好，高温条件下，修补位置会发生黄变，并发生不同程度的收缩，修补位置出现小凹坑，影响修补外观；
4、韧性差，冷热冲击易开裂，产生裂纹。
而采用导电银粉或者银包铜粉和环氧树脂制成的修补剂，虽然具有较好的导电导热功能，但其外观不佳，尤其在高温条件下银发生氧化，颜色发黄发暗，和压铸铝基材外观颜色有较大的差异，而且也存在高温收缩和韧性差的问题，修补效果也欠佳。
发明概述
本申请内容概述如下。本概述并非是为了限制本申请权利要求的保护范围。
针对以上所述现有修补剂的不足，本申请提供了一种铝合金压铸件缺陷修补剂，本申请的铝合金压铸件缺陷修补剂主要由两种组分构成，为膏状、通用型。如本申请的实施例所展示的，本申请的铝合金压铸件缺陷修补剂可用于不同尺寸的铸件气孔、缩孔、砂眼、裂纹的填补，工作温度可达-60℃到210℃，在高温条件下不变色、不发黑，与压铸铝合金基体颜色一致；与基体金属结合强度高，固化后高温下不收缩；施工性高，触变性好；耐酸碱、耐腐蚀；具有导电、导热性能。
具体地，在一方面，本申请提供了一种铝合金压铸件缺陷修补剂，所述缺陷修补剂可由包括以下第一组分和第二组分的原料制得：
所述第一组分可由包括以下的成分制得：聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉、非浮型铝粉、任选的纳米二氧化硅改性双酚F型环氧树脂和任选的双酚A型环氧树脂；
所述第二组分可由包括以下的成分制得：甲基环己二胺、任选的螺环二胺、双酚A型环氧树脂、任选的液体石油树脂和偶联剂。
在以上或其他实施方式中，所述第一组分和所述第二组分的质量之比可以为7:1到8:1。本领域技术人员将理解的是，这样的比值可以根据实际情况及所期望的技术效果来合理地选择。
在以上或其他实施方式中，聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉和非浮型铝粉的质量之比可以为2到3:0005到1:0.3到0.5:48到52:8到10。本领域技术人员将理解的是，这样的比值可以根据实际情况及所期望的技术效果来合理地选择。
在以上或其他实施方式中，其中所述第一组分可由包括以下的成分制得：聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉、非浮型铝粉、纳米二氧化硅改性双酚F型环氧树脂和双酚A型环氧树脂。
在以上或其他实施方式中，所述纳米二氧化硅改性双酚F型环氧树脂和双酚A型环氧树脂的质量之比可以为10到12:25到30。本领域技术人员将理解的是，这样的比值可以根据实际情况及所期望的技术效果来合理地选择。
在以上或其他实施方式中，聚丙二醇二缩水甘油醚、荧光增白剂、抗氧 化剂、银包铜粉和非浮型铝粉的总重量与所述纳米二氧化硅改性双酚F型环氧树脂和双酚A型环氧树脂的总重量之间的质量之比可以为58.305到66.5:35到42。本领域技术人员将理解的是，这样的比值可以根据实际情况及所期望的技术效果来合理地选择。
在以上或其他实施方式中，其中基于所述第一组分的总重量计算，所述第一组分可由包括以下的成分制得：聚丙二醇二缩水甘油醚2％到3％、荧光增白剂0.005％到1％、任选的纳米二氧化硅改性双酚F环氧树脂10％到12％、任选的双酚A环氧树脂25％到30％、抗氧化剂0.3％到0.5％、银包铜粉48％到52％、非浮型铝粉8％到10％。本领域技术人员将理解的是，这样的百分数值可以根据实际情况及所期望的技术效果来合理地选择。
其中，所述聚丙二醇二缩水甘油醚为环氧基团活性稀释剂，例如可使用规格为环氧当量310g/eq到330g/eq的聚丙二醇二缩水甘油醚，用来参与交联反应，减低体系粘度并作为预溶解荧光增白剂的溶剂。本领域技术人员将理解的是，本申请所述的聚丙二醇二缩水甘油醚可以为市售产品。
在以上或其他实施方式中，所述荧光增白剂可以为选自2,5-双-(5-叔丁基-2-苯并恶唑基)噻吩(OB)、2.2’-(4,4’-二苯乙烯基-)双苯并噁唑(OB1)、4,4-双(5甲基-2-苯并恶唑基)二苯乙烯(KSN)中的一种或更多种。其中，荧光增白剂的作用是消除银包铜粉的黄色，提高铝合金压铸件缺陷修补剂的白度，改善修补外观。
在以上或其他实施方式中，所述荧光增白剂可以为荧光染料，例如化学成分为2,5-双(5-叔丁基-2-苯并恶唑)噻吩(OB)的荧光染料。
在以上或其他实施方式中，所述抗氧化剂可以为选自环氧树脂专用高效抗氧化剂牌号为V76-P、V78-P、V85-P中的一种或更多种。其中，抗氧化剂的作用是减少环氧树脂在室温和高温条件下的的氧化、黄变，改善修补剂耐老化性能。
在以上或其他实施方式中，所述抗氧化剂的主要成分可以为亚磷酸酯(例如牌号为V76-P的抗氧化剂)。
在以上或其他实施方式中，所述银包铜粉可以为具有银电镀层的片状铜 粉，其在体系中起导电、导热填充作用。可选地，所述片状铜粉的粒径可以为400目，含银量可以为25wt％。
在以上或其他实施方式中，所述非浮型铝粉可以为经过表面处理的片状铝粉，其作用是提供颜色外观，使修补剂颜色与铝合金颜色接近。可选择地，片状铝粉的粒径可以为1000目。
在以上或其他实施方式中，所述纳米二氧化硅改性双酚F型环氧树脂可以为纳米二氧化硅增强的标准双酚F型环氧树脂，其在体系中是成膜物质，与固化剂交联，由于其中含有纳米二氧化硅可以提高固化物的韧性，提高缺口冲击强度。可选地，纳米二氧化硅增强的标准双酚F型环氧树脂的纳米二氧化硅含量可以为40wt％，环氧当量可以为：265g/eq到300g/eq。
其中，本领域技术人员将理解的是，本申请所述的纳米二氧化硅改性双酚F型环氧树脂可以为市售产品。
在以上或其他实施方式中，用于制备第一组分的所述双酚A型环氧树脂为体系主要成膜物质，与固化剂交联反应，提供材料的强度，可选地环氧当量为182g/eq到190g/eq。
其中，本领域技术人员将理解的是，本申请所述的双酚A型环氧树脂可以为市售产品。
在以上或其他实施方式中，其中基于所述第二组分的总重量计算，所述第二组分可由包括以下的成分制得：甲基环己二胺35％-40％、双酚A型环氧树脂20％-25％、偶联剂0.5％-1％、任选的螺环二胺20％-25％、任选的液体石油树脂15％-20％。本领域技术人员将理解的是，这样的百分数值可以根据实际情况及所期望的技术效果来合理地选择。
其中，所述甲基环己二胺(例如N,N'-二甲基-1,2-环己二胺)可以为固化剂主要成分，其与环氧树脂交联，可以形成高强度的三维材料。
在以上或其他实施方式中，所述螺环二胺的作用是改进甲基环己二胺的固化物性能，提高韧性并减少收缩，提高固化物缺口冲击强度。可选地，所述螺环二胺可以为柔性固化剂，例如化学成分为3,9-二(3-氨基亚丙基)-2,4,8,10-四氧杂螺环[5,5]十一烷、脂肪胺、脂环胺、芳香胺、酸酐等的柔 性固化剂。
在以上或其他实施方式中，用于制备第二组分的所述双酚A型环氧树脂可以为体系主要成膜物质，与固化剂交联反应，提供材料的强度，可选地环氧当量为182g/eq到190g/eq；其作用是与胺类固化剂进行预反应，生成中间产物，提高组分一和组分二的相容性，改善最终产品固化物的外观。
在以上或其他实施方式中，所述液体石油树脂可以是含酚羟基的聚烯烃树脂，可选地羟基含量为7.0wt％到7.4wt％，其作用是作为改性剂以提高体系的固化速度且提高固化物的耐水性和柔韧性。
其中，本领域技术人员将理解的是，本申请所述的液体石油树脂可以为市售产品。
在以上或其他实施方式中，所述偶联剂可以为选自γ-氨丙基三甲氧基硅烷、γ-氨丙基三乙氧基硅烷中的一种或更多种。
其中，所述偶联剂的作用是提高修补剂在基材上的附着力。
另一方面，本申请提供制备上述铝合金压铸件缺陷修补剂的方法，所述方法可以包括：
将包含聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉、非浮型铝粉、任选的纳米二氧化硅改性双酚F型环氧树脂和任选的双酚A型环氧树脂的原料进行混合搅拌处理，制得第一组分；
将甲基环己二胺、双酚A型环氧树脂、偶联剂、任选的螺环二胺和任选的液体石油树脂进行混合搅拌处理，制得第二组分；
将第一组分和第二组分混合，搅拌均匀，以获得所述缺陷修补剂。
其中，当各成分混合均匀、整体颜色均匀时，认为第一组分的制备已经完成。当各成分混合均匀且粘稠度均匀时，认为第二组分的制备已经完成。
在以上或其他实施方式中，其中第一组分的制备可以包括：
将荧光增白剂加入到聚丙二醇二缩水甘油醚中，搅拌均匀，制得荧光增白剂溶液；
将任选的纳米二氧化硅改性双酚F型环氧树脂、任选的双酚A型环氧树 脂、抗氧化剂和荧光增白剂溶液混合，对其进行搅拌处理，得到第一组分混合物初料；
将银包铜粉和非浮型铝粉加入所述第一组分混合物初料中，对其进行搅拌处理，使其混合均匀，制得第一组分。
在以上或其他实施方式中，所述的将任选的纳米二氧化硅改性双酚F型环氧树脂、任选的双酚A型环氧树脂、抗氧化剂和荧光增白剂溶液混合，对其进行搅拌处理，得到第一组分混合物初料可以包括：
将任选的纳米二氧化硅改性双酚F型环氧树脂、任选的双酚A型环氧树脂、抗氧化剂和荧光增白剂溶液加入到真空搅拌机中，在加热条件下进行搅拌处理。
在以上或其他实施方式中，所述加热温度可以为40℃到60℃。
在以上或其他实施方式中，所述搅拌处理的处理时间可以为5min到10min。
在以上或其他实施方式中，可以将银包铜粉和非浮型铝粉加入所述第一组分混合物初料中，继续对其进行搅拌处理，并且可选地，继续搅拌处理的处理时间可以为25min到35min。
在以上或其他实施方式中，所述制得第一组分还可以包括：
对已经搅拌均匀的银包铜粉、非浮型铝粉和第一组分混合物初料进行真空脱泡处理，脱去其中的气泡，从而制得所述第一组分。
在以上或其他实施方式中，所述真空脱泡处理的处理时间可以为5min到10min。
在以上或其他实施方式中，所述第一组分和所述第二组分的质量之比可以为7:1到8:1。本领域技术人员将理解的是，这样的比值可以根据实际情况及所期望的技术效果来合理地选择。
在以上或其他实施方式中，聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉和非浮型铝粉的质量之比可以为2到3:0005到1:0.3到0.5:48到52:8到10。本领域技术人员将理解的是，这样的比值可以根据实际情况及所期望的技术效果来合理地选择。
在以上或其他实施方式中，其中所述第一组分可由包括以下的成分制得：聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉、非浮型铝粉、纳米二氧化硅改性双酚F型环氧树脂和双酚A型环氧树脂。
在以上或其他实施方式中，所述纳米二氧化硅改性双酚F型环氧树脂和双酚A型环氧树脂的质量之比可以为10到12:25到30。本领域技术人员将理解的是，这样的比值可以根据实际情况及所期望的技术效果来合理地选择。
在以上或其他实施方式中，聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉和非浮型铝粉的总重量与纳米二氧化硅改性双酚F型环氧树脂和双酚A型环氧树脂的总重量之间的质量之比可以为58.305到66.5:35到42。本领域技术人员将理解的是，这样的比值可以根据实际情况及所期望的技术效果来合理地选择。
在以上或其他实施方式中，其中基于所述第一组分的总重量计算，所述第一组分可由包括以下的成分制得：聚丙二醇二缩水甘油醚2％到3％、荧光增白剂0.005％到1％、抗氧化剂0.3％到0.5％、银包铜粉48％到52％、非浮型铝粉8％到10％，任选的纳米二氧化硅改性双酚F型环氧树脂10％-12％和任选的双酚A型环氧树脂25％-30％。本领域技术人员将理解的是，这样的百分数值可以根据实际情况及所期望的技术效果来合理地选择。
其中，所述聚丙二醇二缩水甘油醚为环氧基团活性稀释剂，例如可使用规格为环氧当量310g/eq到330g/eq的聚丙二醇二缩水甘油醚，用来参与交联反应，减低体系粘度并作为预溶解荧光增白剂的溶剂。本领域技术人员将理解的是，本申请所述的聚丙二醇二缩水甘油醚可以为市售产品。
在以上或其他实施方式中，所述荧光增白剂可以为选自2.5-双-(5-叔丁基-2-苯并恶唑基)噻吩(OB)、2.2’-(4,4’-二苯乙烯基-)双苯并噁唑(OB1)、4,4-双(5甲基-2-苯并恶唑基)二苯乙烯(KSN)中的一种或更多种。其中，荧光增白剂的作用是消除银包铜粉的黄色，提高铝合金压铸件缺陷修补剂的白度，改善修补外观。
在以上或其他实施方式中，所述荧光增白剂可以为荧光染料，例如化学成分为2.5-双-(5-叔丁基-2-苯并恶唑基)噻吩(OB)的荧光染料。
在以上或其他实施方式中，所述抗氧化剂可以为选自环氧树脂专用高效抗氧化剂牌号为V76-P、V78-P、V85-P中的一种或更多种。其中，抗氧化剂的作用是减少环氧树脂在室温和高温条件下的的氧化、黄变，改善修补剂耐老化性能。
在以上或其他实施方式中，所述抗氧化剂的主要成分可以为亚磷酸酯(例如牌号为V76-P的抗氧化剂)。
在以上或其他实施方式中，所述银包铜粉可以为具有银电镀层的片状铜粉，其在体系中起导电、导热填充作用。可选地，所述片状铜粉的粒径可以为400目，含银量可以为25wt％。
在以上或其他实施方式中，所述非浮型铝粉可以为经过表面处理的片状铝粉，其作用是提供颜色外观，使修补剂颜色与铝合金颜色接近。可选择地，片状铝粉的粒径可以为1000目。
在以上或其他实施方式中，所述纳米二氧化硅改性双酚F型环氧树脂可以为纳米二氧化硅增强的标准双酚F型环氧树脂，其在体系中是成膜物质，与固化剂交联，由于其中含有纳米二氧化硅可以提高固化物的韧性，提高缺口冲击强度。可选地，纳米二氧化硅增强的标准双酚F型环氧树脂的纳米二氧化硅含量可以为40wt％，环氧当量可以为：265g/eq到300g/eq。
其中，本领域技术人员将理解的是，本申请所述的纳米二氧化硅改性双酚F型环氧树脂可以为市售产品。
在以上或其他实施方式中，用于制备第一组分的所述双酚A型环氧树脂为体系主要成膜物质，与固化剂交联反应，提供材料的强度，可选地环氧当量为182g/eq到190g/eq。
其中，本领域技术人员将理解的是，本申请所述的双酚A型环氧树脂可以为市售产品。
在以上或其他实施方式中，第二组分的制备可以包括：
将甲基环己二胺和螺环二胺混合搅拌均匀，制得第二组分的第一混合物；
将双酚A型环氧树脂滴加至所述第二组分的第一混合物中，搅拌均匀， 制得第二组分的第二混合物；
将液体石油树脂和偶联剂加入所述第二组分的第二混合物中，搅拌均匀，得到所述第二组分。
在以上或其他实施方式中，可以将所述甲基环己二胺和螺环二胺加热至90℃到100℃，再对其进行搅拌处理。
在以上或其他实施方式中，所述搅拌处理的搅拌速度可以为190r/min到210r/min。
在以上或其他实施方式中，所述搅拌处理的搅拌时间可以为5min到10min。
在以上或其他实施方式中，可以将所述第二组分的第一混合物冷却至40℃到60℃，然后在搅拌下将所述双酚A型环氧树脂滴加至其中。
在以上或其他实施方式中，可以在50min到60min的时间内将所述双酚A型环氧树脂滴加完。
在以上或其他实施方式中，所述搅拌处理的搅拌速度可以为190r/min到210r/min。
在以上或其他实施方式中，将第二组分的第二混合物在40℃到60℃的温度下保温4h到5h，再将液体石油树脂和偶联剂加入所述第二组分的第二混合物中，对其进行搅拌处理。
在以上或其他实施方式中，所述搅拌处理的搅拌速度可以为190r/min到210r/min。
在以上或其他实施方式中，所述搅拌处理的搅拌时间可以为10min到15min。
在以上或其他实施方式中，其中基于所述第二组分的总重量计算，所述第二组分可由包括以下的成分制得：甲基环己二胺35％到40％、双酚A型环氧树脂20％到25％、偶联剂0.5％到1％，任选的螺环二胺20％-25％、任选的液体石油树脂15％-20％。本领域技术人员将理解的是，这样的百分数值可以根据实际情况及所期望的技术效果来合理地选择。
其中，所述甲基环己二胺(例如N,N'-二甲基-1,2-环己二胺)可以为固化 剂主要成分，其与环氧树脂交联，可以形成高强度的三维材料。
在以上或其他实施方式中，所述螺环二胺的作用是改进甲基环己二胺的固化物性能，提高韧性并减少收缩，提高固化物缺口冲击强度。可选地，所述螺环二胺可以为柔性固化剂，例如化学成分为3,9-二(3-氨基亚丙基)-2,4,8,10-四氧杂螺环[5,5]十一烷、3,9-二(3-氨基亚丙基)-2,4,8,10-四氧杂螺环[5,5]十一烷、脂肪胺、脂环胺、芳香胺、酸酐等的柔性固化剂。
在以上或其他实施方式中，用于制备第二组分的所述双酚A型环氧树脂可以为体系主要成膜物质，与固化剂交联反应，提供材料的强度，可选地环氧当量为182g/eq到190g/eq；其作用是与胺类固化剂进行预反应，生成中间产物，提高组分一和组分二的相容性，改善最终产品固化物的外观。
在以上或其他实施方式中，所述液体石油树脂可以是含酚羟基的聚烯烃树脂，可选地羟基含量为7.0wt％到7.4wt％，其作用是作为改性剂以提高体系的固化速度且提高固化物的耐水性和柔韧性。
其中，本领域技术人员将理解的是，本申请所述的液体石油树脂可以为市售产品。
在以上或其他实施方式中，所述偶联剂可以为选自γ-氨丙基三甲氧基硅烷、γ-氨丙基三乙氧基硅烷中的一种或更多种。
其中，所述偶联剂的作用是提高修补剂在基材上的附着力。
在以上或其他实施方式中，将所述第一组分和第二组分混合，搅拌均匀，从而制得所述铝合金压铸件缺陷修补剂，可选地，第一组分和第二组分的质量之比为7:1到8:1。
其中，本申请的铝合金压铸件缺陷修补剂可适用于不同尺寸压铸件的气孔、缩孔、砂眼和裂纹的修补，对铝合金基材附着力强，对冷轧钢板、镀锌钢板、镁合金等金属基材也表现出优异的附着力，适用范围广。
本申请的铝合金压铸件缺陷修补剂具有导电导热功能的功能，相比现有铝合金压铸缺陷修补剂，本申请的修补剂不会影响铝合金压铸件通讯设备壳体的电磁屏蔽功能和导热功能。
本申请的铝合金压铸件缺陷修补剂具有很好的导热性，散热快，可以使 所修补的铝合金压铸件不受在工作过程中产生的温升的影响。
本申请的铝合金压铸件缺陷修补剂耐高温性能好，高温收缩率低，在高温条件下，修补位置不会发生颜色变化和热收缩。
本申请的铝合金压铸件缺陷修补剂抗冲击性能好，耐酸碱、耐腐蚀等性能也表现优异。
本申请的铝合金压铸件缺陷修补剂由于在配方中添加了部分非浮型铝粉、荧光增白剂，使修补位置具有更好的颜色外观，与基材颜色相近，在高温固化后颜色也不发生变化，不变黄。
本申请的铝合金压铸件缺陷修补剂的制备方法简单快捷，第一组分和第二组分混合均匀就可制得，无需长时间的固化，非常适合设计成小包装按普通物品携带和施工。
在阅读并理解了附图和具体实施方式后，可以明白其他方面。
发明详述
以下对本申请的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅是说明性的和示例性的，并不由此以任何方式限制本申请权利要求的保护范围。
除非另有说明，本申请实施例所用到的试剂、原料均为市售商品，所用到的仪器均为常规市售仪器。在不同的实施例中，相同的试剂来源相同。
实施例1
1、按照如下质量比备料：
基于第一组分的总重量计算，聚丙二醇二缩水甘油醚(生产商为广州市一夫化工物资有限公司)2.5％、荧光增白剂(2,5-二(5-叔丁基苯并恶唑-2’-)噻吩，生产商为上海弘顺生物科技有限公司)0.01％、纳米二氧化硅改性双酚F型环氧树脂(生产商为深圳初创应用材料有限公司，牌号为ICAM 8650)11％、双酚A型环氧树脂(生产商为华东理工大学华昌聚合物有限公司)27.5％、抗氧化剂(主要成分为亚磷酸酯，生产商为广州志一化工有限公司，牌号：V76-P)0.4％、银包铜粉(生产商为惠州市腾辉科技有限公司)49.59％ 及非浮型铝粉(生产商为郑州宇航铝业有限公司)9％；
基于第二组分的总重量计算，甲基环己二胺(生产商为宁夏东科石化有限公司)37.8％、螺环二胺(3，9-二(3-氨基亚丙基)-2，4，8，10-四氧杂螺环[5，5]十一烷，生产商为宁夏东科石化有限公司)22.5％、双酚A型环氧树脂(生产商为华东理工大学华昌聚合物有限公司)22％、液体石油树脂(牌号为德国吕特格公司的LS500)17％、γ-氨丙基三甲氧基硅烷(生产商为南京联硅化工有限公司)0.7％。
2、制备第一组分：
将荧光增白剂加入到聚丙二醇二缩水甘油醚中，搅拌均匀，制得荧光增白剂溶液；
将纳米二氧化硅改性双酚F型环氧树脂、双酚A型环氧树脂、抗氧化剂和荧光增白剂溶液加入到真空搅拌机中，启动真空搅拌机的加热水浴，将釜内温度加热到50℃，开启真空搅拌机对其进行搅拌处理7min，制得第一组分混合物初料，其中真空搅拌机的公转速度为40r/min，自传速度为500r/min；
将银包铜粉和非浮型铝粉通过真空搅拌机的加料口加入所述第一组分混合物初料中，调整真空搅拌机的公转速度为50r/min，自传速度为900r/min，对其进行搅拌处理30min；
30min后，开启真空泵对真空搅拌及中的混合料进行脱泡处理7min，其中真空泵的真空度为-0.097MPa；
关闭真空泵，停止搅拌，放气，从而制得第一组分。
3、制备第二组分：
将甲基环己二胺和螺环二胺加入反应釜中，将其加热至95℃，并在200r/min的速度下搅拌8min，制得第二组分第一混合物；
调节反应釜的温度至40℃，将第二组分第一混合物冷却至40℃，在200r/min的速度下边搅拌边向其中滴加双酚A环氧树脂，50min内滴完，制得第二组分第二混合物；
将第二组分第二混合物在50℃下保温4.5h，再将液体石油树脂和γ-氨 丙基三甲氧基硅烷加入所述第二组分第二混合物中，并在200r/min的速度下搅拌12min，制得第二组分。
4、制备铝合金压铸缺陷修补剂：
将制备的第一组分和第二组分混合均匀，其中第一组分和第二组分的质量之比为7.5：1，从而获得铝合金压铸缺陷修补剂。
在25℃，操作时间(50g混合物)：28分钟，表干时间：90分钟；
修补剂修补缺陷后，25℃，固化7天后测得修补剂的性能如下：
附着力：12MPa，GB/T 5210；邵氏硬度(A)：89，GB/T 2411；拉伸强度：17MPa，ASTM D 638；压缩强度：82MPa，ASTM D 695；缺口冲击强度：42J/m，ASTM D 256；体积电阻率：2×10-4Ω·m,GB/T 15662；导热系数：12.7W/(m·K),GB/T 10297；体积收缩率(190℃，30min)：0.9％；ISO3521；老化试验(120℃，6h)：变色小于2级，评判标准GB/T 1766。
试验用底材为铝合金板，测试标准均为对应标准的最新标准。
实施例2
1、按照如下质量比备料：
基于第一组分的总重量计算，聚丙二醇二缩水甘油醚(生产商为广州市一夫化工物资有限公司)2％、荧光增白剂(2,5-二(5-叔丁基苯并恶唑-2’-)噻吩，生产商为上海弘顺生物科技有限公司)0.005％、纳米二氧化硅改性双酚F型环氧树脂(生产商为深圳初创应用材料有限公司，牌号为ICAM 8650)12％、双酚A型环氧树脂(生产商为华东理工大学华昌聚合物有限公司)25％、抗氧化剂(主要成分为亚磷酸酯，广州志一化工有限公司，牌号：V76-P)0.5％、银包铜粉(生产商为惠州市腾辉科技有限公司)50.495％及非浮型铝粉(生产商为郑州宇航铝业有限公司)10％；
基于第二组分的总重量计算，甲基环己二胺(生产商为宁夏东科石化有限公司)35％、螺环二胺(3，9-二(3-氨基亚丙基)-2，4，8，10-四氧杂螺环[5，5]十一烷,生产商为宁夏东科石化有限公司)25％、双酚A型环氧树脂(生产商为华东理工大学华昌聚合物有限公司)20％、液体石油树脂(牌号为德 国吕特格公司的LS500)19.5％、γ-氨丙基三甲氧基硅烷(生产商为南京联硅化工有限公司)0.5％。
2、制备第一组分：
将荧光增白剂加入到聚丙二醇二缩水甘油醚中，搅拌均匀，制得荧光增白剂溶液；
将纳米二氧化硅改性双酚F型环氧树脂、双酚A型环氧树脂、抗氧化剂和荧光增白剂溶液加入到真空搅拌机中，启动真空搅拌机的加热水浴，将釜内温度加热到40℃，开启真空搅拌机对其进行搅拌处理8min，制得第一组分混合物初料，其中真空搅拌机的公转速度为50r/min，自传速度为400r/min；
将银包铜粉和非浮型铝粉通过真空搅拌机的加料口加入所述第一组分混合物初料中，调整真空搅拌机的公转速度为55r/min，自传速度为850r/min，对其进行搅拌处理35min；
35min后，开启真空泵对真空搅拌及中的混合料进行脱泡处理10min，其中真空泵的真空度为-0.095MPa；
关闭真空泵，停止搅拌，放气，从而制得第一组分。
3、制备第二组分：
将甲基环己二胺和螺环二胺加入反应釜中，将其加热至90℃，并在210r/min的速度下搅拌7min，制得第二组分第一混合物；
调节反应釜的温度至40℃，将第二组分第一混合物冷却至40℃，在210r/min的速度下边搅拌边向其中滴加双酚A环氧树脂，50min内滴完，制得第二组分第二混合物；
将第二组分第二混合物在40℃下保温5h，再将液体石油树脂和γ-氨丙基三甲氧基硅烷加入所述第二组分第二混合物中，并在205r/min的速度下搅拌10min，制得第二组分。
4、制备铝合金压铸缺陷修补剂：
将制备的第一组分和第二组分混合均匀，其中第一组分和第二组分的质量之比为7：1，从而获得铝合金压铸缺陷修补剂。
在25℃，操作时间(50g混合物)：28分钟，表干时间：85分钟；
修补剂修补缺陷后，25℃，固化7天后测得修补剂的性能如下：
附着力：13.5MPa，GB/T 5210；邵氏硬度(A)：85，GB/T 2411；拉伸强度：16.5MPa，ASTM D 638；压缩强度：78MPa，ASTM D 695；缺口冲击强度：45J/m，ASTM D 256；体积电阻率：2.2×10-4Ω·m,GB/T 15662；导热系数：11.9W/(m·K),GB/T 10297；体积收缩率(190℃，30min)：0.9％；ISO3521；老化试验(120℃，6h)：变色小于2级，评判标准GB/T 1766。
试验用底材为铝合金板，测试标准均为对应标准的最新标准。
实施例3
1、按照如下质量比备料：
基于第一组分的总重量计算，聚丙二醇二缩水甘油醚(生产商为广州市一夫化工物资有限公司)3％、荧光增白剂(2,5-二(5-叔丁基苯并恶唑-2’-)噻吩，生产商为上海弘顺生物科技有限公司)0.7％、纳米二氧化硅改性双酚F型环氧树脂(生产商为深圳初创应用材料有限公司，牌号为ICAM 8650)10％、双酚A型环氧树脂(生产商为华东理工大学华昌聚合物有限公司)30％、抗氧化剂(主要成分为亚磷酸酯，生产商为广州志一化工有限公司，牌号：V76-P)0.3％、银包铜粉(生产商为惠州市腾辉科技有限公司)48％、非浮型铝粉(生产商为郑州宇航铝业有限公司)8％；
基于第二组分的总重量计算，甲基环己二胺(生产商为宁夏东科石化有限公司)40％、螺环二胺(3，9-二(3-氨基亚丙基)-2，4，8，10-四氧杂螺环[5，5]十一烷，生产商为宁夏东科石化有限公司)20％、双酚A型环氧树脂(生产商为华东理工大学华昌聚合物有限公司)23％、液体石油树脂(牌号为德国吕特格公司的LS500)16.5％、γ-氨丙基三乙氧基硅烷(生产商为南京联硅化工有限公司)0.5％。
2、制备第一组分：
将荧光增白剂加入到聚丙二醇二缩水甘油醚中，搅拌均匀，制得荧光增白剂溶液；
将纳米二氧化硅改性双酚F型环氧树脂、双酚A型环氧树脂、抗氧化剂和荧光增白剂溶液加入到真空搅拌机中，启动真空搅拌机的加热水浴，将釜内温度加热到45℃，开启真空搅拌机对其进行搅拌处理10min，获得第一组分混合物初料，其中真空搅拌机的公转速度为45r/min，自传速度为550r/min；
将银包铜粉和非浮型铝粉通过真空搅拌机的加料口加入所述第一组分混合物初料中，调整真空搅拌机的公转速度为40r/min，自传速度为1000r/min，对其进行搅拌处理33min；
33min后，开启真空泵对真空搅拌及中的混合料进行脱泡处理8min，其中真空泵的真空度为-0.0955MPa；
关闭真空泵，停止搅拌，放气，制得第一组分。
3、制备第二组分：
将甲基环己二胺和螺环二胺加入反应釜中，将其加热至100℃，并在205r/min的速度下搅拌5min，制得第二组分第一混合物；
调节反应釜的温度至55℃，将第二组分第一混合物冷却至55℃，在205r/min的速度下边搅拌边向其中滴加双酚A环氧树脂，60min内滴完，制得第二组分第二混合物；
将第二组分第二混合物在55℃下保温5h，再将液体石油树脂和γ-氨丙基三乙氧基硅烷加入所述第二组分第二混合物中，并在190r/min的速度下搅拌15min，制得第二组分。
4、制备铝合金压铸缺陷修补剂：
将制备的第一组分和第二组分混合均匀，其中第一组分和第二组分的质量之比为8：1，从而获得铝合金压铸缺陷修补剂。
在25℃，操作时间(50g混合物)：28分钟，表干时间：85分钟；
修补剂修补缺陷后，25℃，固化7天后测得修补剂的性能如下：
附着力：12.4MPa，GB/T 5210；邵氏硬度(A)：86，GB/T 2411；拉伸强度：15.2MPa，ASTM D 638；压缩强度：82MPa，ASTM D 695；缺口冲击强度：42J/m，ASTM D 256；体积电阻率：2.5×10-4Ω·m,GB/T 15662；导热 系数：9.5W/(m·K),GB/T 10297；体积收缩率(190℃，30min)：1.0％；ISO3521；老化试验(120℃，6h)：变色小于2级，评判标准GB/T 1766。
试验用底材为铝合金板，测试标准均为对应标准的最新标准。
实施例4
1、按照如下质量比备料：
基于第一组分的总重量计算，聚丙二醇二缩水甘油醚(生产商为广州市一夫化工物资有限公司)2.3％、荧光增白剂(2,5-二(5-叔丁基苯并恶唑-2’-)噻吩，生产商为上海弘顺生物科技有限公司)1％、纳米二氧化硅改性双酚F型环氧树脂(生产商为深圳初创应用材料有限公司，牌号为ICAM 8650)10.16％、双酚A型环氧树脂(生产商为华东理工大学华昌聚合物有限公司)26％、抗氧化剂(主要成分为亚磷酸酯，生产商为广州志一化工有限公司，牌号：V76-P)0.4％、银包铜粉(生产商为惠州市腾辉科技有限公司)52％及非浮型铝粉(生产商为郑州宇航铝业有限公司)8.5％；
基于第二组分的总重量计算，甲基环己二胺(生产商为宁夏东科石化有限公司)36.5％、螺环二胺(3，9-二(3-氨基亚丙基)-2，4，8，10-四氧杂螺环[5，5]十一烷，生产商为宁夏东科石化有限公司)22.5％、双酚A型环氧树脂(生产商为华东理工大学华昌聚合物有限公司)25％、液体石油树脂(牌号为德国吕特格公司的LS500)15％、γ-氨丙基三乙氧基硅烷(生产商为南京联硅化工有限公司)1％。
2、制备第一组分：
将荧光增白剂加入到聚丙二醇二缩水甘油醚中，搅拌均匀，制得荧光增白剂溶液；
将纳米二氧化硅改性双酚F型环氧树脂、双酚A型环氧树脂、抗氧化剂和荧光增白剂溶液加入到真空搅拌机中，启动真空搅拌机的加热水浴，将釜内温度加热到60℃，开启真空搅拌机对其进行搅拌处理5min，制得第一组分混合物初料，其中真空搅拌机的公转速度为30r/min，自传速度为600r/min；
将银包铜粉和非浮型铝粉通过真空搅拌机的加料口加入所述第一组分混合物初料中，调整真空搅拌机的公转速度为60r/min，自传速度为800r/min，对其进行搅拌处理25min；
25min后，开启真空泵对真空搅拌及中的混合料进行脱泡处理5min，其中真空泵的真空度为-0.099MPa；
关闭真空泵，停止搅拌，放气，制得第一组分。
3、制备第二组分：
将甲基环己二胺和螺环二胺加入反应釜中，将其加热至100℃，并在190r/min的速度下搅拌10min，制得第二组分第一混合物；
调节反应釜的温度至60℃，将第二组分第一混合物冷却至60℃，在190r/min的速度下边搅拌边向其中滴加双酚A环氧树脂，55min内滴完，制得第二组分第二混合物；
将第二组分第二混合物在60℃下保温4h，再将液体石油树脂和γ-氨丙基三乙氧基硅烷加入所述第二组分第二混合物中，并在210r/min的速度下搅拌10min，制得第二组分。
4、制备铝合金压铸缺陷修补剂：
将制备的第一组分和第二组分混合均匀，其中第一组分和第二组分的质量之比为7.8：1，从而获得铝合金压铸缺陷修补剂。
在25℃，操作时间(50g混合物)：28分钟，表干时间：85分钟；
修补剂修补缺陷后，25℃，固化7天后测得修补剂的性能如下：
附着力：12.5MPa，GB/T 5210；邵氏硬度(A)：87，GB/T 2411；拉伸强度：16.9MPa，ASTM D 638；压缩强度：84MPa，ASTM D 695；缺口冲击强度：41J/m，ASTM D 256；体积电阻率：1.8×10-4Ω·m,GB/T 15662；导热系数：13.5W/(m·K),GB/T 10297；体积收缩率(190℃，30min)：0.8％；ISO3521；老化试验(120℃，6h)：变色小于2级，评判标准GB/T 1766。
试验用底材为铝合金板，测试标准均为对应标准的最新标准。
由上述性能参数可知，本申请的上述实施例制备的修补剂具有导电性、 耐高温、韧性好、高温收缩率小、高温老化不变黄等特性，因此能够解决了目前市面常见的修补剂所存在的不导电、高温后变黄、收缩、韧性差等的问题。
在此处所述的本申请实施例的物料、操作和配置上可以进行变动，而不背离如本申请权利要求中所限定的本申请的原理和范围。虽然可以以许多不同形式来使本申请具体化，但是此处详细描述本申请的一些实施方案。本公开内容是本申请的的示例，且并不规定为使本申请限于所示的具体实施方案。此外，本申请包括此处所述的各种实施方案的一些或全部的任意可能的组合。在本申请中或在任一个引用的专利、引用的专利申请或其它引用的资料中任何地方所提及的所有专利、专利申请和其它引用资料据此通过引用以其整体并入。
以上公开内容规定为说明性的而不是穷尽性的。对于本领域技术人员来说，本说明书将暗示许多变化和可选择方案。所有这些可选择方案和变化规定为被包括在本权利要求的范围内，其中术语“包括”以及“包含”意思均是“包括，但不限于”。本领域技术人员应认识到此处所述的实施方案的其它等效变换，这些等效变换也规定为由本权利要求所包括。
在此完成了对本申请可选择的实施方案的描述。本领域技术人员可认识到此处所述的实施方案的其它等效变换，这些等效变换规定为由附于本文的权利要求所包括。
工业实用性
本申请实施方式提供的铝合金压铸件缺陷修补剂可用于不同尺寸的铸件气孔、缩孔、砂眼、裂纹的填补，工作温度可达-60℃到210℃，在高温条件下不变色、不发黑，与压铸铝合金基体颜色一致；与基体金属结合强度高，固化后高温下不收缩；施工性高，触变性好；耐酸碱、耐腐蚀；具有导电、导热性能。

Claims (12)

  1. 一种铝合金压铸件缺陷修补剂，所述缺陷修补剂由包括以下第一组分和第二组分的原料制得：
    所述第一组分由包括以下的成分制得：聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉、非浮型铝粉、任选的纳米二氧化硅改性双酚F型环氧树脂和任选的双酚A型环氧树脂；
    所述第二组分由包括以下的成分制得：甲基环己二胺、双酚A型环氧树脂、偶联剂、任选的螺环二胺和任选的液体石油树脂。
  2. 根据权利要求1所述的修补剂，其中所述第一组分和所述第二组分的质量之比为7:1到8:1。
  3. 如权利要求1所述的修补剂，其中所述第一组分由包括以下的成分制得：聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉、非浮型铝粉、纳米二氧化硅改性双酚F型环氧树脂和双酚A型环氧树脂。
  4. 根据权利要求1所述的修补剂，其中所述第二组分由包括以下的成分制得：甲基环己二胺、双酚A型环氧树脂、偶联剂、螺环二胺和液体石油树脂。
  5. 如权利要求3所述的修补剂，其中聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉和非浮型铝粉的总重量与纳米二氧化硅改性双酚F型环氧树脂和双酚A型环氧树脂的总重量之间的比率为58.305到66.5:35到42。
  6. 如权利要求1所述的修补剂，其中基于所述第一组分的总重量计算，所述第一组分由包括以下的成分制得：聚丙二醇二缩水甘油醚2％到3％、荧光增白剂0.005％到1％、任选的纳米二氧化硅改性双酚F环氧树脂10％到12％、任选的双酚A环氧树脂25％到30％、抗氧化剂0.3％到0.5％、银包铜粉48％到52％、非浮型铝粉8％到10％。
  7. 如权利要求1所述的修补剂，其中基于所述第二组分的总重量计算，所述第二组分由包括以下的成分制得：甲基环己二胺35％到40％、任选的螺环二胺20％到25％、双酚A型环氧树脂20％到25％、任选的液体石油树脂 15％到20％、偶联剂0.5％到1％。
  8. 一种制备铝合金压铸件缺陷修补剂的方法，所述方法包括：
    将包含聚丙二醇二缩水甘油醚、荧光增白剂、抗氧化剂、银包铜粉、非浮型铝粉、任选的纳米二氧化硅改性双酚F型环氧树脂和任选的双酚A型环氧树脂的原料进行混合搅拌处理，制得第一组分；
    将甲基环己二胺、双酚A型环氧树脂、偶联剂、任选的螺环二胺和任选的液体石油树脂进行混合搅拌处理，制得第二组分；
    将所述第一组分和所述第二组分混合，搅拌均匀以获得所述缺陷修补剂。
  9. 如权利要求8所述的方法，其中所述第一组分和所述第二组分的质量之比为7:1到8:1。
  10. 如权利要求8所述的方法，其中所述第一组分的制备包括：
    将荧光增白剂加入到聚丙二醇二缩水甘油醚中，搅拌均匀，制得荧光增白剂溶液；
    将任选的纳米二氧化硅改性双酚F型环氧树脂、任选的双酚A型环氧树脂、抗氧化剂和荧光增白剂溶液混合，对其进行搅拌处理，得到第一组分混合物初料；
    将银包铜粉和非浮型铝粉加入所述第一组分混合物初料中，对其进行搅拌处理，使其混合均匀，制得第一组分。
  11. 如权利要求10所述的方法，其中基于所述第一组分的总重量计算，所述第一组分由包括以下的成分制得：聚丙二醇二缩水甘油醚2％到3％、荧光增白剂0.005％到1％、任选的纳米二氧化硅改性双酚F环氧树脂10％到12％、任选的双酚A环氧树脂25％到30％、抗氧化剂0.3％到0.5％、导电银包铜粉48％到52％、非浮型铝粉8％到10％。
  12. 如权利要求8所述的方法，其中基于所述第二组分的总重量计算，所述第二组分由包括以下的成分制得：甲基环己二胺35％到40％、任选的螺环二胺20％到25％、双酚A环氧树脂20％到25％、任选的液体石油树脂15％到20％、偶联剂0.5％到1％。
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