CN115491100A - Surface protection spraying material for automobile coating and preparation method thereof - Google Patents

Surface protection spraying material for automobile coating and preparation method thereof Download PDF

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Publication number
CN115491100A
CN115491100A CN202211070823.2A CN202211070823A CN115491100A CN 115491100 A CN115491100 A CN 115491100A CN 202211070823 A CN202211070823 A CN 202211070823A CN 115491100 A CN115491100 A CN 115491100A
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parts
surface protection
emulsifier
automobile
epoxy resin
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CN202211070823.2A
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Chinese (zh)
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喻小飞
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Individual
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Individual
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/84—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with two or more stirrers rotating at different speeds or in opposite directions about the same axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/12—Maintenance of mixers using mechanical means
    • B01F35/123—Maintenance of mixers using mechanical means using scrapers for cleaning mixers
    • 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
    • C09D7/61—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
    • C09D7/65—Additives macromolecular
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/30—Mixing paints or paint ingredients, e.g. pigments, dyes, colours, lacquers or enamel

Abstract

The invention discloses a surface protection spraying material for automobile film coating and a preparation method thereof, wherein the surface protection spraying material comprises the following raw materials in parts by weight: 200-300 parts of epoxy resin, 100-200 parts of flexible polymer, 2-6 parts of maleic anhydride, 10-20 parts of fluororesin, 5-10 parts of nano material, 20-30 parts of diluent, 2-5 parts of emulsifier, 3-8 parts of curing agent and 2-6 parts of corrosion inhibitor. The flexible polymer improves the elasticity and toughness of a coated film after spraying, and the fluorine resin endows the fluorine-containing polymer with the characteristics of water resistance, oil resistance, stain resistance and the like, so that the coated film has a lotus leaf effect, the water repellency is improved, the nano material is combined to improve the suspension stability of the emulsion, the bonding strength between the coating and the substrate and the finish degree of a paint surface are improved, the water repellency is further improved, and the surface performance of the coated film is improved.

Description

Surface protection spraying material for automobile coating and preparation method thereof
Technical Field
The invention relates to the technical field of automobile surface coatings, in particular to a surface protection spraying material for automobile film coating and a preparation method thereof.
Background
The coating technology for the painted surface is the latest generation of vehicle paint protection technology in the world. In order to solve the problems, the inventor provides a surface protection spraying material for automobile coating and a preparation method thereof to solve the problems.
Disclosure of Invention
The coating aims to solve the problems that after the coating spraying material is cured, the surface of the coating has general elastic strength, and raindrops are adhered after rainwater is sprayed on the surface, so that the service life of the coating is short; the invention aims to provide a surface protection spraying material for automobile coating and a preparation method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme: a surface protection spraying material for automobile coating comprises the following raw materials in parts by weight: 200-300 parts of epoxy resin, 100-200 parts of flexible polymer, 2-6 parts of maleic anhydride, 10-20 parts of fluororesin, 5-10 parts of nano material, 20-30 parts of diluent, 2-5 parts of emulsifier, 3-8 parts of curing agent and 2-6 parts of anticorrosive agent.
In a preferred embodiment, the raw material composition comprises the following components in parts by weight: 240 parts of epoxy resin, 130 parts of flexible polymer, 3 parts of maleic anhydride, 13 parts of fluororesin, 6 parts of nano material, 24 parts of diluent, 3 parts of emulsifier, 4 parts of curing agent and 3 parts of anticorrosive agent.
In a preferred embodiment, the raw material composition comprises the following components in parts by weight: 260 parts of epoxy resin, 170 parts of flexible polymer, 5 parts of maleic anhydride, 18 parts of fluororesin, 7 parts of nano material, 27 parts of diluent, 5 parts of emulsifier, 6 parts of curing agent and 5 parts of corrosion inhibitor.
In a preferred embodiment, the epoxy resin is an alicyclic epoxy resin, the flexible polymer is one or more of ethyl acrylate, isooctyl acrylate and nitrile-butadiene rubber, the fluororesin is one or more of polytetrafluoroethylene, difluorochloroethylene and trifluoroethyl acrylate, and the nanomaterial is nano fumed silica.
In a preferred embodiment, the diluent comprises, by mass, 15% of n-butyl acetate, 15% of ethyl acetate, 10% of n-butanol, 10% of ethanol, 5% of acetone, 20% of benzene, and the balance xylene; the emulsifier is one or more of sodium dodecyl sulfate and sodium dodecyl benzene sulfonate; the curing agent is one or more of vinyl triamine, methylene dicyclohexyl amine and diethylaminopropylamine; the corrosion inhibitor is one or more of benzoic acid, dehydroacetic acid and methyl p-hydroxybenzoate.
A preparation method of a surface protection spraying material for automobile coating comprises the following steps:
s1, weighing an emulsifier according to a ratio, adding the emulsifier into deionized water, adding the emulsifier into an emulsifying device, quickly mixing, and sequentially adding epoxy resin, a flexible polymer, maleic anhydride, fluororesin, a nano material and a diluent in a vacuum state to quickly emulsify;
s2, taking out the emulsion, adding the emulsion into a reaction kettle, adding a curing agent and an anticorrosive agent, heating to 80-90 ℃, stirring, mixing, preserving heat, reacting for 1h, and filtering to obtain the surface protection spraying material for the automobile coating.
An embodiment of preferred, in step S1, emulsification device includes a jar body, the top joint top cap of the jar body, the top surface middle part fixed mounting of top cap has the motor, the bottom fixed mounting of top cap has the mount pad, install mixing mechanism on the mount pad, install drive mechanism between mixing mechanism and mount pad, one side of top cap is installed and is thrown the material mechanism, the fixed cover in bottom of the jar body has the discharging pipe, the fixed cover in lateral wall top of the jar body has the negative pressure pipe.
The preferred embodiment, all install the valve in negative pressure pipe and the discharging tube, throw the material mechanism and include throwing the material pipe, throw the fixed cup joint of material pipe on the overhead gage, throw the bottom of material pipe and install solenoid valve, throw the top screw thread of material pipe and install the blanking cover, and throw the sealing washer of the terminal surface fixed mounting of material pipe and laminating blanking cover, the fixed bleed valve that has cup jointed on the blanking cover.
An embodiment of preferred, the hybrid mechanism includes well core rod, it has well core rod to rotate the cover on the mount pad, the output shaft of well core rod's top fixed connection motor, a plurality of second blades of well core rod's outer wall fixed mounting, well core rod's bottom fixed mounting has a bottom scraper blade, the inner chamber bottom of the jar body of closely laminating of bottom scraper blade, the both sides outer wall of mount pad is equipped with the side bull stick, install drive mechanism between side bull stick and well core rod, the side bull stick is close to a plurality of first blades of one side fixed mounting of well core rod, two a plurality of side scrapers of one side outer wall fixed mounting of well core rod are kept away from to the side bull stick, the inner wall of the jar body of side scraper blade laminating.
An embodiment of preferred, the crisscross distribution of axis along the jar body is all followed to the side scraper blade on first blade and second blade and two side bull sticks, drive mechanism includes the turn trough, the outer wall of mount pad is opened there is the turn trough, rotate the joint change on the turn trough, two the outer wall of the top fixed connection change of side bull stick, the fixed hub connection has central gear on the well core rod, central gear rotates the middle part of joint at the mount pad, the mount pad internal rotation has cup jointed drive gear, drive gear's one side meshing central gear, the inner wall fixed mounting of change has the ring gear, ring gear meshing drive gear's opposite side.
Compared with the prior art, the invention has the beneficial effects that:
1. the flexible polymer improves the elasticity and toughness of the coated film after spraying, and the fluororesin endows the fluorine-containing polymer with the characteristics of water resistance, oil resistance, stain resistance and the like, so that the coated film has a lotus effect, the water repellency is improved, the nano material is combined with the nano material to improve the suspension stability of the emulsion, the bonding strength between the coating and the substrate and the finish degree of the paint surface are improved, the water repellency is further improved, and the surface performance of the coated film is improved;
2. the motor drives the central rod to rotate, the central rod drives the rotating ring to rotate through the central gear, the transmission gear and the toothed ring, so that the side rotating rods synchronously rotate, the rotating direction of the side rotating rods is opposite to that of the central rod, the first blades and the second blades which are distributed in a staggered mode move oppositely, the purpose of shearing a mixture is achieved, high-speed emulsification is achieved, the bottom scraper and the side scraper prevent materials from being adhered to the inner wall of the tank body, and the purpose of rapid emulsification and mixing is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the process of the present invention.
FIG. 2 is a schematic view of the emulsifying device of the present invention.
FIG. 3 is a schematic cross-sectional view of an emulsifying device according to the present invention.
FIG. 4 is a schematic cross-sectional view of the mounting seat of the present invention.
In the figure: 1. a tank body; 2. a top cover; 3. a mounting seat; 4. a motor; 5. a mixing mechanism; 51. a side rotating rod; 52. a center pole; 53. a first blade; 54. a second blade; 55. a side flight; 56. a bottom squeegee; 6. a transmission mechanism; 61. rotating the groove; 62. rotating the ring; 63. a sun gear; 64. a transmission gear; 65. a toothed ring; 7. a discharge pipe; 8. a negative pressure tube; 9. a feeding mechanism; 91. a feeding pipe; 92. an electromagnetic valve; 93. blocking the cover; 94. air release valve
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: as shown in figures 1-4, the invention provides a surface protection spraying material for automobile coating, which comprises the following raw materials in parts by weight: 240 parts of epoxy resin, 130 parts of flexible polymer, 3 parts of maleic anhydride, 13 parts of fluororesin, 6 parts of nano material, 24 parts of diluent, 3 parts of emulsifier, 4 parts of curing agent and 3 parts of anticorrosive agent.
Furthermore, the epoxy resin is alicyclic epoxy resin, the flexible polymer is ethyl acrylate, the fluororesin is polytetrafluoroethylene, and the nano material is nano fumed silica.
Further, the diluent comprises, by mass, 15% of n-butyl acetate, 15% of ethyl acetate, 10% of n-butanol, 10% of ethanol, 5% of acetone, 20% of benzene, and the balance xylene; the emulsifier is sodium dodecyl sulfate; the curing agent is vinyl triamine; the corrosion inhibitor is benzoic acid.
A preparation method of a surface protection spraying material for automobile coating comprises the following steps:
s1, weighing an emulsifier according to a ratio, adding the emulsifier into deionized water, adding the emulsifier into an emulsifying device, quickly mixing, and sequentially adding epoxy resin, a flexible polymer, maleic anhydride, fluororesin, a nano material and a diluent in a vacuum state to quickly emulsify;
s2, taking out the emulsion, adding the emulsion into a reaction kettle, adding a curing agent and an anticorrosive agent, heating to 80-90 ℃, stirring, mixing, preserving heat, reacting for 1 hour, and filtering to obtain the surface protection spraying material for the automobile coating.
According to the technical scheme, the epoxy resin, the flexible polymer, the maleic anhydride, the fluororesin and the nano material are emulsified and heated to react to obtain the spraying material, the flexible polymer improves the elasticity and toughness of a sprayed coating, and the fluororesin endows the fluorine-containing polymer with the characteristics of water resistance, oil resistance, stain resistance and the like, so that the coating has a lotus effect, the water-repellent property is improved, the suspension stability of the emulsion is improved by combining the nano material, the bonding strength between the coating and the substrate and the finish of the paint surface are improved, and the water repellency is further improved.
Further, in step S1, the emulsifying device comprises a tank body 1, a top cover 2 is clamped at the top of the tank body 1, a motor 4 is fixedly mounted in the middle of the top surface of the top cover 2, a mounting seat 3 is fixedly mounted at the bottom of the top cover 2, a mixing mechanism 5 is mounted on the mounting seat 3, a transmission mechanism 6 is mounted between the mixing mechanism 5 and the mounting seat 3, a feeding mechanism 9 is mounted on one side of the top cover 2, a discharging pipe 7 is fixedly sleeved at the bottom of the tank body 1, and a negative pressure pipe 8 is fixedly sleeved at the top of the side wall of the tank body 1.
Through above-mentioned technical scheme, throw the material through throwing material mechanism 9, guarantee the negative pressure vacuum nature in the jar body 1, motor 4 makes mixing mechanism 5 carry out the fly-cutting of opposite direction in succession to the material and mixes through passing through drive mechanism 6, improves emulsification speed.
Further, all install the valve in negative pressure pipe 8 and discharging pipe 7, throw material mechanism 9 and include throwing material pipe 91, throw material pipe 91 fixed cover and connect on top cap 2, throw the bottom of material pipe 91 and install solenoid valve 92, throw the top screw thread of material pipe 91 and install blanking cap 93, and throw the top terminal surface fixed mounting of material pipe 91 and have the sealing washer of laminating blanking cap 93, fixed cover on the blanking cap 93 has connect bleed valve 94.
Through the technical scheme, the negative pressure pipe 8 is used for providing negative pressure, so that air during emulsification is discharged, material oxidation during emulsification is avoided, when the electromagnetic valve 92 is closed, the air release valve 94 is opened, air pressure in the feeding pipe 91 is balanced with the outside, then the blocking cover 93 is opened, so that materials are added, the blocking cover 93 is closed, and the electromagnetic valve 92 is opened, so that the materials are put into the tank.
Further, mixing mechanism 5 includes well core rod 52, it has well core rod 52 to rotate the cover on mount pad 3, well core rod 52's top fixed connection motor 4's output shaft, a plurality of second blades 54 of well core rod 52's outer wall fixed mounting, well core rod 52's bottom fixed mounting has bottom scraper 56, bottom scraper 56 closely laminates the inner chamber bottom of the jar body 1, the both sides outer wall of mount pad 3 is equipped with side bull stick 51, install drive mechanism 6 between side bull stick 51 and well core rod 52, side bull stick 51 is close to a plurality of first blades 53 of one side fixed mounting of well core rod 52, two side bull sticks 51 keep away from a plurality of side scrapers 55 of one side outer wall fixed mounting of well core rod 52, side scraper 55 laminates the inner wall of the jar body 1.
Further, the crisscross distribution of axis along jar body 1 is all followed to side scraper blade 55 on first blade 53 and second blade 54 and two side bull sticks 51, drive mechanism 6 includes a rotating groove 61, the outer wall of mount pad 3 is opened there is a rotating groove 61, rotate joint change ring 62 on the rotating groove 61, the top fixed connection change ring 62's of two side bull sticks 51 outer wall, fixed the cup jointing has central gear 63 on well core rod 52, central gear 63 rotates the joint at the middle part of mount pad 3, the internal rotation of mount pad 3 has cup jointed drive gear 64, one side meshing central gear 63 of drive gear 64, the inner wall fixed mounting of change ring 62 has ring gear 65, ring gear 65 meshes the opposite side of drive gear 64.
Through the technical scheme, the motor 4 drives the central rod 52 to rotate, the central rod 52 drives the rotating ring 62 to rotate through the central gear 63, the transmission gear 64 and the toothed ring 65, so that the side rotating rods 51 synchronously rotate, the rotating direction of the side rotating rods 51 is opposite to that of the central rod 52, the first blades 53 and the second blades 54 which are distributed in a staggered mode oppositely move, the purpose of shearing a mixture is achieved, high-speed emulsification is achieved, and the bottom scraper 56 and the side scraper 55 avoid materials from being adhered to the inner wall of the tank body 1.
Example 2: as shown in figures 1-4, the invention provides a surface protection spraying material for automobile coating, which comprises the following raw materials in parts by weight: 260 parts of epoxy resin, 170 parts of flexible polymer, 5 parts of maleic anhydride, 18 parts of fluororesin, 7 parts of nano material, 27 parts of diluent, 5 parts of emulsifier, 6 parts of curing agent and 5 parts of corrosion inhibitor.
Furthermore, the epoxy resin is alicyclic epoxy resin, the flexible polymer is isooctyl acrylate, the fluororesin is polyvinyl difluoride, and the nano material is nano fumed silica.
Further, the diluent comprises, by mass, 15% of n-butyl acetate, 15% of ethyl acetate, 10% of n-butanol, 10% of ethanol, 5% of acetone, 20% of benzene, and the balance xylene; the emulsifier is sodium dodecyl benzene sulfonate; the curing agent is methylene dicyclohexylamine; the corrosion inhibitor is dehydroacetic acid.
A preparation method of a surface protection spraying material for automobile coating comprises the following steps:
s1, weighing an emulsifier according to a ratio, adding the emulsifier into deionized water, adding the emulsifier into an emulsifying device, quickly mixing, and sequentially adding epoxy resin, a flexible polymer, maleic anhydride, fluororesin, a nano material and a diluent in a vacuum state to quickly emulsify;
s2, taking out the emulsion, adding the emulsion into a reaction kettle, adding a curing agent and an anticorrosive agent, heating to 80-90 ℃, stirring, mixing, preserving heat, reacting for 1h, and filtering to obtain the surface protection spraying material for the automobile coating.
Further, in step S1, the emulsifying device comprises a tank body 1, a top cover 2 is clamped at the top of the tank body 1, a motor 4 is fixedly mounted in the middle of the top surface of the top cover 2, a mounting seat 3 is fixedly mounted at the bottom of the top cover 2, a mixing mechanism 5 is mounted on the mounting seat 3, a transmission mechanism 6 is mounted between the mixing mechanism 5 and the mounting seat 3, a feeding mechanism 9 is mounted on one side of the top cover 2, a discharging pipe 7 is fixedly sleeved at the bottom of the tank body 1, and a negative pressure pipe 8 is fixedly sleeved at the top of the side wall of the tank body 1.
Further, all install the valve in negative pressure pipe 8 and the discharging pipe 7, throw material mechanism 9 and including throwing material pipe 91, throw material pipe 91 fixed cup joint on top cap 2, throw the bottom of material pipe 91 and install solenoid valve 92, throw the top screw thread of material pipe 91 and install blanking cap 93, and throw the top end fixed mounting of material pipe 91 and have the sealing washer of laminating blanking cap 93, fixed cup joint has bleed valve 94 on the blanking cap 93.
Further, mixing mechanism 5 includes well core rod 52, it has well core rod 52 to rotate to cup joint on the mount pad 3, well core rod 52's top fixed connection motor 4's output shaft, a plurality of second blades 54 of well core rod 52's outer wall fixed mounting, well core rod 52's bottom fixed mounting has bottom scraper 56, bottom scraper 56 closely laminates the inner chamber bottom of the jar body 1, the both sides outer wall of mount pad 3 is equipped with the side bull stick 51, install drive mechanism 6 between side bull stick 51 and well core rod 52, a plurality of first blades 53 of one side fixed mounting that side bull stick 51 is close to well core rod 52, a plurality of side scrapers 55 of one side outer wall fixed mounting that well core rod 52 were kept away from to two side bull sticks 51, the side scraper 55 laminates the inner wall of the jar body 1.
Further, the crisscross distribution of axis along jar body 1 is all followed to side scraper blade 55 on first blade 53 and second blade 54 and two side bull sticks 51, drive mechanism 6 includes a rotating groove 61, the outer wall of mount pad 3 is opened there is a rotating groove 61, rotate joint change ring 62 on the rotating groove 61, the top fixed connection change ring 62's of two side bull sticks 51 outer wall, fixed the cup jointing has central gear 63 on well core rod 52, central gear 63 rotates the joint at the middle part of mount pad 3, the internal rotation of mount pad 3 has cup jointed drive gear 64, one side meshing central gear 63 of drive gear 64, the inner wall fixed mounting of change ring 62 has ring gear 65, ring gear 65 meshes the opposite side of drive gear 64.
The working principle is as follows: weighing an emulsifier according to a ratio, adding the emulsifier into deionized water, adding the emulsifier into an emulsifying device, quickly mixing, and sequentially adding epoxy resin, a flexible polymer, maleic anhydride, fluororesin, a nano material and a diluent in a vacuum state to quickly emulsify; taking the emulsion out, adding the emulsion into a reaction kettle, adding a curing agent and an anticorrosive agent, heating to 80-90 ℃, stirring, mixing, carrying out heat preservation reaction for 1h, filtering to obtain a surface protection spraying material for automobile coating, feeding the material through a feeding mechanism 9 to ensure the negative pressure vacuum property in the tank body 1, enabling a mixing mechanism 5 to carry out continuous rapid cutting and mixing on the material through a transmission mechanism 6 to improve the emulsifying speed, enabling a negative pressure pipe 8 to provide negative pressure so as to discharge air during emulsification and avoid the oxidation of the material during emulsification, when an electromagnetic valve 92 is closed, opening a vent valve 94 so that the air pressure in a feeding pipe 91 is balanced with the outside, then opening a blocking cover 93 so as to add the material, then closing the blocking cover 93, opening the electromagnetic valve 92 so that the material is fed, driving a central rod 52 to rotate by the motor 4, driving the central rod 52 to rotate through a central gear 63, a transmission gear 64 and a toothed ring 65 so as to enable a side rotating rod 51 to synchronously rotate, enabling the side rotating rod 51 to rotate in a direction opposite to enable a first blade 53 and a second blade 54 which are distributed to achieve the opposite movement, thereby achieving the purposes of improving the high-speed emulsion coating, improving the stability of the emulsion coating, and improving the stability of the coating of the emulsion coating, and improving the adhesion of the high-speed emulsion coating, and the adhesion of the emulsion coating, and the high-resistant nano emulsion coating, and the high-resistant coating, and the high-speed emulsion coating.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. The surface protection spraying material for automobile coating is characterized by comprising the following raw materials in parts by weight: 200-300 parts of epoxy resin, 100-200 parts of flexible polymer, 2-6 parts of maleic anhydride, 10-20 parts of fluororesin, 5-10 parts of nano material, 20-30 parts of diluent, 2-5 parts of emulsifier, 3-8 parts of curing agent and 2-6 parts of corrosion inhibitor.
2. The surface protection spray coating material for automobile coating according to claim 1, wherein the material composition comprises the following raw materials in parts by weight: 240 parts of epoxy resin, 130 parts of flexible polymer, 3 parts of maleic anhydride, 13 parts of fluororesin, 6 parts of nano material, 24 parts of diluent, 3 parts of emulsifier, 4 parts of curing agent and 3 parts of anticorrosive agent.
3. The surface protection spray coating material for automobile coating according to claim 1, wherein the material composition comprises the following raw materials in parts by weight: 260 parts of epoxy resin, 170 parts of flexible polymer, 5 parts of maleic anhydride, 18 parts of fluororesin, 7 parts of nano material, 27 parts of diluent, 5 parts of emulsifier, 6 parts of curing agent and 5 parts of corrosion inhibitor.
4. The surface protection spray coating material for automobile coating according to claim 1, wherein the epoxy resin is alicyclic epoxy resin, the flexible polymer is one or more of ethyl acrylate, isooctyl acrylate and nitrile butadiene rubber, the fluororesin is one or more of polytetrafluoroethylene, difluorochloroethylene and trifluoroethyl acrylate, and the nanomaterial is nano fumed silica.
5. The surface-protecting spray coating material for automobile coating according to claim 1, wherein the diluent comprises, by mass, n-butyl acetate 15%, ethyl acetate 15%, n-butanol 10%, ethanol 10%, acetone 5%, benzene 20%, and the balance xylene; the emulsifier is one or more of sodium dodecyl sulfate and sodium dodecyl benzene sulfonate; the curing agent is one or more of vinyl triamine, methylene dicyclohexyl amine and diethylamino propylamine; the corrosion inhibitor is one or more of benzoic acid, dehydroacetic acid and methyl p-hydroxybenzoate.
6. A preparation method of a surface protection spraying material for automobile coating is characterized by comprising the following steps:
s1, weighing an emulsifier according to a ratio, adding the emulsifier into deionized water, adding the emulsifier into an emulsifying device, quickly mixing, and sequentially adding epoxy resin, a flexible polymer, maleic anhydride, fluororesin, a nano material and a diluent in a vacuum state to quickly emulsify;
s2, taking out the emulsion, adding the emulsion into a reaction kettle, adding a curing agent and an anticorrosive agent, heating to 80-90 ℃, stirring, mixing, preserving heat, reacting for 1h, and filtering to obtain the surface protection spraying material for the automobile coating.
7. The method for preparing the surface protection spraying material for automobile film coating according to claim 6, wherein in step S1, the emulsifying device comprises a tank body (1), the top of the tank body (1) is connected with a top cover (2) in a clamping manner, the motor (4) is fixedly installed in the middle of the top surface of the top cover (2), the mounting seat (3) is fixedly installed at the bottom of the top cover (2), the mixing mechanism (5) is installed on the mounting seat (3), a transmission mechanism (6) is installed between the mixing mechanism (5) and the mounting seat (3), a feeding mechanism (9) is installed at one side of the top cover (2), a discharge pipe (7) is fixedly sleeved at the bottom of the tank body (1), and a negative pressure pipe (8) is fixedly sleeved at the top of the side wall of the tank body (1).
8. The method for preparing the surface protection spraying material for automobile coating according to claim 7, wherein valves are respectively installed in the negative pressure pipe (8) and the discharge pipe (7), the feeding mechanism (9) comprises a feeding pipe (91), the feeding pipe (91) is fixedly sleeved on the top cover (2), an electromagnetic valve (92) is installed at the bottom of the feeding pipe (91), a blocking cover (93) is installed at the top of the feeding pipe (91) through a thread, a sealing ring attached to the blocking cover (93) is fixedly installed on the top end face of the feeding pipe (91), and a release valve (94) is fixedly sleeved on the blocking cover (93).
9. The method for preparing the surface protection spray coating material for coating the automobile according to claim 1, wherein the mixing mechanism (5) comprises a center rod (52), the mounting base (3) is rotatably sleeved with the center rod (52), the top of the center rod (52) is fixedly connected with the output shaft of the motor (4), the outer wall of the center rod (52) is fixedly provided with a plurality of second blades (54), the bottom of the center rod (52) is fixedly provided with a bottom scraper (56), the bottom scraper (56) is tightly attached to the bottom of the inner cavity of the tank body (1), the outer walls of two sides of the mounting base (3) are provided with side rotating rods (51), a transmission mechanism (6) is arranged between the side rotating rods (51) and the center rod (52), one side of the side rotating rods (51) close to the center rod (52) is fixedly provided with a plurality of first blades (53), one side outer wall of the two side rotating rods (51) far away from the center rod (52) is fixedly provided with a plurality of side scrapers (55), and the side scrapers (55) are attached to the inner wall of the tank body (1).
10. The method for preparing the surface protection spray coating material for automobile film coating according to claim 9, wherein the first blade (53), the second blade (54) and the side scrapers (55) on the two side rotating rods (51) are distributed along the axis of the tank body (1) in a staggered manner, the transmission mechanism (6) comprises a rotating groove (61), the outer wall of the mounting seat (3) is provided with the rotating groove (61), the rotating groove (61) is rotatably clamped with the rotating ring (62), the tops of the two side rotating rods (51) are fixedly connected with the outer wall of the rotating ring (62), the central rod (52) is fixedly sleeved with the central gear (63), the central gear (63) is rotatably clamped in the middle of the mounting seat (3), the mounting seat (3) is rotatably sleeved with the transmission gear (64), one side of the transmission gear (64) is engaged with the central gear (63), the inner wall of the rotating ring (62) is fixedly provided with the toothed ring (65), and the toothed ring (65) is engaged with the other side of the transmission gear (64).
CN202211070823.2A 2022-09-02 2022-09-02 Surface protection spraying material for automobile coating and preparation method thereof Pending CN115491100A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107163645A (en) * 2017-06-14 2017-09-15 合肥市旺友门窗有限公司 A kind of aluminum alloy doors and windows wear-resistant paint and preparation method thereof
CN112555155A (en) * 2020-12-08 2021-03-26 合肥墨研涡旋科技有限公司 Self-lubricating wear-resistant gasket for electric scroll compressor and preparation method thereof
CN216936033U (en) * 2022-03-17 2022-07-12 河南宝固建材科技有限公司 Synthetic reation kettle of polycarboxylic acids high performance water-reducing agent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107163645A (en) * 2017-06-14 2017-09-15 合肥市旺友门窗有限公司 A kind of aluminum alloy doors and windows wear-resistant paint and preparation method thereof
CN112555155A (en) * 2020-12-08 2021-03-26 合肥墨研涡旋科技有限公司 Self-lubricating wear-resistant gasket for electric scroll compressor and preparation method thereof
CN216936033U (en) * 2022-03-17 2022-07-12 河南宝固建材科技有限公司 Synthetic reation kettle of polycarboxylic acids high performance water-reducing agent

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Application publication date: 20221220