CN116426153A - Anticorrosive section bar, frame, solar module, support and photovoltaic system - Google Patents

Anticorrosive section bar, frame, solar module, support and photovoltaic system Download PDF

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CN116426153A
CN116426153A CN202310299146.XA CN202310299146A CN116426153A CN 116426153 A CN116426153 A CN 116426153A CN 202310299146 A CN202310299146 A CN 202310299146A CN 116426153 A CN116426153 A CN 116426153A
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coating
corrosion
base material
graphene
thickness
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陈水林
刘亚锋
王建
黄晓
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Risen Energy Co Ltd
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Risen Energy Co Ltd
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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
    • 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
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • 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
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C18/00—Alloys based on zinc
    • C22C18/04—Alloys based on zinc with aluminium as the next major constituent
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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Abstract

The invention discloses an anti-corrosion section bar, a frame, a solar cell module, a bracket and a photovoltaic system, which belong to the technical field of metal corrosion protection, wherein the anti-corrosion section bar comprises a base material, an alloy plating layer and an anti-corrosion coating layer which are sequentially arranged on the surface of the base material from inside to outside, the anti-corrosion coating layer comprises a bottom coating and a top coating, and at least 5% of graphene with 2-5 layers is contained in the bottom coating and the top coating layer according to weight percentage. The beneficial effects of the invention are as follows: the alloy coating and the anti-corrosion coating are combined for corrosion prevention of the surface of the substrate, wherein the anti-corrosion coating adopts a base coat and a top coat, and at least 5% of 2-5 layers of graphene are contained in the anti-corrosion coating, so that the anti-corrosion coating has good anti-corrosion performance, meanwhile, the paint film adhesive force is improved, and the double-layer anti-corrosion structure formed by combining the graphene anti-corrosion coating and the alloy coating greatly reduces the paint film thickness and the spraying processing difficulty, so that the anti-corrosion coating is particularly suitable for frames of solar cell modules and supports of photovoltaic systems.

Description

Anticorrosive section bar, frame, solar module, support and photovoltaic system
Technical Field
The invention relates to the technical field of metal corrosion protection, in particular to an anti-corrosion section bar, a frame, a solar cell module, a bracket and a photovoltaic system.
Background
The outdoor weatherability of steel is relatively poor, and long-time outdoor use influences life. In order to improve the service life of the steel, the surface of the steel is generally subjected to corrosion prevention treatment, and at present, two corrosion prevention methods are generally available, namely, an alloy layer such as hot galvanizing, aluminizing, alloy plating and the like is plated on the surface of the steel; and secondly, coating a layer of coating such as paint, powder and the like on the surface of the steel.
The steel material with alloy layer on the surface has exposed steel metal body in the processing and cutting part, is easy to corrode in wet environment, and has high outdoor use coating thickness requirement of 275-660 g/m 2 The high-thickness coating is easy to crack and peel off, the manufacturing cost is high, the alloy coating is seriously discolored and blackened to cause poor appearance after long-term outdoor application, the product popularization is influenced, the customer acceptance is low, and the alloy coating is only suitable for some low-end products without appearance requirements; in addition, the alloy coating has certain conductivity, and when the alloy coating is used for electric equipment installed in a power station, the alloy coating steel needs insulation treatment in the production and use processes, so that potential safety hazards exist.
The steel with the surface coated with the coating is more used indoors, has no long-term anti-corrosion effect in outdoor use, is generally discolored, discolored and pulverized, and even falls off, even if some coatings can be used outdoors for a certain period of time, certain requirements are met on the thickness, the thickness is required to be 120-240 mu m, and the poor coatings are required to be frequently repaired in outdoor use.
The conventional steel after corrosion protection treatment has the following problems: (1) The environment weather resistance of the steel is poor, oxidation, rust and appearance quality problems are commonly existed in long-term outdoor use, and the service life of the steel is influenced; (2) The fracture surface and the hole site in the steel processing process, the surface scratch, gouge and other wound parts are easy to corrode when used outdoors; (3) The anti-corrosion structure of the independent coating or the coating has high requirements on the thickness of the coating and the coating, and not only has the problems of cracking and falling in production, but also has high cost; (4) The surface of the steel is easy to conduct, and when the product is installed, produced and used in a power station, the electric shock risk exists; (5) The outer surface of the steel wire treated by the independent coating has black spots and oxides which are difficult to remove, and the appearance quality is affected.
At present, the research on corrosion prevention of steel products is carried out by adopting alloy plating layers and coating layers to be combined, for example, the invention patent application with publication number of CN113481453A discloses a multi-system protective layer steel bar and a preparation method thereof, the steel bar comprises a steel matrix of a core part, a hot dip galvanized aluminum alloy coating layer and a resin-based outer coating layer, the aluminum content of the hot dip galvanized aluminum alloy coating layer is 0.1-10wt%, the aluminum content of the hot dip galvanized aluminum alloy coating layer comprises zinc aluminum magnesium, zinc aluminum silicon or zinc aluminum zirconium series plating layers, the thickness of the resin-based coating layer is 50-400 mu m, and the alloy plating layers and the resin-based outer coating layers are combined.
The invention patent application with the publication number of CN110054924A discloses a high corrosion-resistant antistatic color coated steel plate and a manufacturing method thereof, wherein the high corrosion-resistant antistatic color coated steel plate comprises a substrate, a passivation layer, a front surface coating and/or a back surface coating, the front surface coating comprises a primer and a finish paint, the finish paint is a composite coating which is formed by polyester paint or polyvinyl fluoride paint and has the thickness range of 8-35 mu m, and the weight percentage of the nano graphene to the finish paint is 0.1-2.0%; the thickness of the nano graphene sheet in the composite coating is 0.7-1.2 nm, the sheet diameter is 1-5 mu m, and the substrate is one of a hot galvanized plate, a hot galvanized aluminum plate, a hot aluminized zinc plate or a zinc-aluminum-magnesium alloy coated steel plate. The anti-static performance of the color plate is improved, the corrosion resistance of the coating is improved, and the problem that the anti-static performance is negatively related to the corrosion resistance is solved. However, the outdoor weather resistance of the steel is poor, the steel cannot be used for a long time, the service life is insufficient, and the like.
Disclosure of Invention
In order to overcome the problems of poor outdoor weather resistance, short service life, high production cost, high appearance quality and the like of steel in the prior art, the invention provides an anti-corrosion profile, which comprises a base material, an alloy plating layer and an anti-corrosion coating layer, wherein the alloy plating layer and the anti-corrosion coating layer are sequentially arranged on the surface of the base material from inside to outside, the anti-corrosion coating layer comprises a base coat and a top coat, and at least 5% of graphene with 2-5 layers is contained in the base coat and the top coat according to weight percentage.
The alloy coating and the anti-corrosion coating are combined for corrosion prevention of the surface of the substrate, wherein the anti-corrosion coating adopts a bottom coating and a top coating, and at least 5% of 2-5 layers of graphene are contained in the anti-corrosion coating, so that the anti-corrosion coating has good anti-corrosion performance, and meanwhile, the paint film adhesive force is improved, and the double-layer anti-corrosion structure formed by combining the graphene anti-corrosion coating and the alloy coating greatly reduces the thickness of the paint film and the spraying processing difficulty.
Here, the graphene with 2-5 layers is used, the internal pores of the coating layer are filled by utilizing the characteristics of the nano size of the graphene, and a good material isolation layer is formed in the thickness direction of the coating layer, so that the coating layer has good paint film compactness, and the aim of improving the anti-corrosion performance is fulfilled.
The lamellar structure characteristics of the graphene and the strong adsorption effect on the polymer are utilized, so that the polymer is wrapped outside the graphene, and an ordered lamellar structure is formed by stacking layers, so that the structural pores of the resin after solidification are less, the resin is more tightly combined, the adhesive force of a paint film is improved, and meanwhile, the paint layer taking the graphene with the lamellar structure as a framework can have thinner thickness and a more stable film forming structure.
The amino resin and the graphene cooperate to ensure that the coating layer after film formation has good hardness and paint film adhesive force, so that the overall thickness of the coating layer is greatly reduced while the corrosion resistance of the coating layer is ensured, the coating layer is effectively prevented from falling off, and the damage of external collision to the steel surface is reduced.
Preferably, the thickness of each layer in the graphene is 0.30-0.40 nm, the total thickness is 0.7-2.0 nm, and the sheet diameter is 5-20 mu m; the number of layers of graphene is preferably 4, the total thickness is preferably 1.3 to 1.6nm, and the sheet diameter is preferably 10 to 20. Mu.m.
Preferably, the top coat comprises the following components in percentage by weight: 5-10% of 2-5 layers of graphene, 40-60% of hydroxy acrylic resin, 15-30% of amino resin, 10-20% of high wear-resistant auxiliary agent and the balance of filler and pigment.
The graphene surface coating formula system is composed of graphene, hydroxy acrylic resin, amino resin and high wear-resistant auxiliary agent, the high wear-resistant auxiliary agent is added to enable the surface coating to have good wear resistance and anti-skid property, the surface friction coefficient is more than 0.6, and the problems of dislocation, inclination, scratch and the like caused by sliding of products in the processes of packaging, transportation, turnover and stacking are solved.
Preferably, the high wear resistance aid is a methylene polymer.
Preferably, the primer comprises the following components in percentage by weight: 5-10% of 2-5 layers of graphene, 30-40% of epoxy resin, 15-25% of amino resin and the balance of filler and pigment.
The graphene primer coating formula system composed of graphene, epoxy resin and amino resin is adopted, and the hydrophobic characteristic of graphene is utilized and added into the coating to prevent water molecules from contacting a metal matrix or a metal coating, so that an anti-corrosion effect is achieved; the electrons lost by Fe in the paint are transferred to the surface of the paint layer by utilizing the excellent conductivity of the graphene, so that Fe precipitation is avoided, and the electrochemical corrosion speed is reduced.
Preferably, the alloy coating comprises the following components in percentage by weight: 6.0 to 13.0 percent of aluminum, 2.0 to 4.0 percent of magnesium, 0.1 to 2.0 percent of silicon, 0.1 to 2.0 percent of trace elements and the balance of zinc.
The zinc-aluminum-magnesium alloy coating has high adhesiveness and low conductivity, has the function of isolating corrosive medium, prevents further corrosion of metal, reduces corrosion speed and greatly improves the corrosion resistance of the whole metal surface.
Preferably, the thickness of the alloy coating is not less than 15 μm, and the gram weight is not less than 90g/m 2 。
Preferably, the thickness of the primer coat is 15-25 μm, the thickness of the top coat is 15-25 μm, and the total thickness of the anticorrosive coating is 30-50 μm.
The steel anticorrosion structure can realize super-strong anticorrosion effect only by being coated on the surface of the steel substrate, and the specific shape of the steel structure is not particularly required, wherein a plurality of common steel structures such as plate-shaped steel, rod-shaped steel or tubular steel are listed, namely the substrate can be a sheet-shaped, tubular or rod-shaped steel substrate.
The invention also provides a frame, which adopts the anti-corrosion profile.
The invention also provides a solar cell module, which comprises the frame and a lamination piece arranged on the frame.
The invention also provides a bracket which adopts the anti-corrosion profile.
The invention also provides a photovoltaic system comprising the bracket and one or more solar cell modules arranged on the bracket.
When the steel substrate is subjected to corrosion prevention treatment, if bending, welding and other forming processing are not needed, a layer of alloy plating layer can be directly plated on the surface of the steel substrate, then punching, cutting and other processing are performed on the steel substrate, and then the special corrosion prevention coating is formed by spraying the base coat and the top coat, spraying the base coat and baking and solidifying the base coat at two times and high temperature.
When the steel substrate is used for a solar cell module bracket and/or a frame, forming treatment may be needed to enable the steel substrate to be in a required mounting structure, the steel substrate can be bent or welded into a specific shape, then a layer of alloy plating is plated on the surface of the steel substrate, after punching, cutting and other processing is carried out on the steel substrate, the special anti-corrosion coating is formed by spraying the base coat and the top coat, and then carrying out two spraying and two high-temperature baking and curing.
And (3) carrying out two spraying and two high-temperature baking and curing to obtain steel materials in specific shapes for forming the bracket or the frame, assembling the steel materials for forming the frame and the lamination piece to form a solar cell module, assembling the steel materials for forming the bracket to obtain the bracket, and mounting one or more solar cell modules on the bracket to form the photovoltaic system.
The beneficial effects are that:
the technical scheme of the invention has the following beneficial effects:
(1) The alloy coating and the anti-corrosion coating are combined for corrosion prevention of the surface of the substrate, wherein the anti-corrosion coating adopts a bottom coating and a top coating, and at least 5% of 2-5 layers of graphene are contained in the anti-corrosion coating, so that the anti-corrosion coating has good anti-corrosion performance, and meanwhile, the paint film adhesive force is improved, and the double-layer anti-corrosion structure formed by combining the graphene anti-corrosion coating and the alloy coating greatly reduces the thickness of the paint film and the spraying processing difficulty.
(2) The primer coating and the top coating in the anti-corrosion coating are prepared by mixing the multi-component resin and the graphene material according to different modes, so that the adhesive force and the anti-corrosion performance of a paint film are improved, and the special coating is solidified on a steel structure of a coating through two spraying and two high-temperature baking, so that the anti-corrosion coating has a super weather-resistant anti-corrosion effect and is attractive in appearance.
(3) The amino resin and the graphene cooperate to ensure that the coating layer after film formation has good hardness and paint film adhesive force, so that the overall thickness of the coating layer is greatly reduced while the corrosion resistance of the coating layer is ensured, the coating layer is effectively prevented from falling off, and the damage of external collision to the steel surface is reduced.
(4) The product anticorrosion structure can be invalid when the steel surface is used for at most 10-15 years in the open air after common anticorrosion treatment, and the service life of the steel in the open air can reach 25-30 years by adopting the double-layer structure of combining an alloy plating layer and a special anticorrosion coating.
(5) The thickness of a single paint film is generally 120-240 mu m, the special anti-corrosion coating is adopted to optimize the thickness of the paint film to 30-50 mu m, the thickness of the paint film is reduced while the anti-corrosion performance is ensured, the material cost is reduced, the manufacturing cost is reduced by about 30%, and the special anti-corrosion coating also has good decorative performance and excellent appearance quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a preferred sheet structural steel layer structure of the present invention;
FIG. 2 is a schematic view of the structure of a steel layer of a preferred tubular structure according to the present invention;
FIG. 3 is a schematic view of a steel layer structure of a preferred rod-like structure according to the present invention.
In the figure, 1, a substrate; 2. alloy plating; 3. an anti-corrosion coating; 31. priming; 32. and (5) surface coating.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
According to the embodiment, the combination of the alloy coating and the anti-corrosion coating is used for corrosion prevention of the surface of the substrate, wherein the anti-corrosion coating adopts a base coat and a top coat, and at least 5% of 2-5 layers of graphene is contained in the anti-corrosion coating, so that the anti-corrosion coating has good anti-corrosion performance, meanwhile, the adhesive force of a paint film is improved, and the double-layer anti-corrosion structure formed by combining the graphene anti-corrosion coating and the alloy coating greatly reduces the thickness of the paint film and the spraying processing difficulty. The specific implementation mode is as follows:
As shown in fig. 1-3, the steel comprises a substrate 1 and a double-layer structure attached to the surface of the substrate, and the steel anticorrosion structure can achieve a super-strong anticorrosion effect only by coating on the surface of the steel substrate, and the specific shape of the steel structure is not particularly required, the substrate 1 can be a sheet-shaped steel substrate, a tubular substrate or a rod-shaped substrate, the double-layer structure sequentially comprises an alloy coating 2 and an anticorrosion coating 3 from inside to outside, the anticorrosion coating 3 comprises a bottom coating 31 and a top coating 32, and the bottom coating 31 and the top coating 32 both contain at least 5% of 2-5 layers of graphene according to weight percentage.
When the steel substrate is subjected to corrosion prevention treatment, firstly, a layer of alloy coating 2 is plated on the surface of the steel substrate, then, the steel substrate is subjected to processing such as punching, cutting and the like, then, a special corrosion prevention coating is formed by spraying a base coat 31 and a surface coat 32 and carrying out two-time spraying and two-time high-temperature baking and curing, so that the corrosion prevention problem of wound parts such as fracture surfaces and hole sites, scratches, gouges and scratches on the surface and the like in the steel processing process can be effectively solved.
Wherein, use 2 ~ 5 layers of graphene of 5%, utilize the characteristics of graphene nanometer size to fill the inside hole of coating layer, and form good material isolation layer in coating layer thickness direction moreover, make the coating layer have good film compactness to reach the purpose that improves the anticorrosive performance.
The lamellar structure characteristics of the graphene and the strong adsorption effect on the polymer are utilized, so that the polymer is wrapped outside the graphene, an ordered lamellar structure is formed by stacking the graphene layer by layer, structural pores of the resin after solidification are less, the resin is more tightly combined, the adhesive force of a paint film is improved, and meanwhile, a paint layer taking the graphene with the lamellar structure as a framework can have thinner thickness and a more stable film forming structure.
The amino resin and the graphene cooperate to ensure that the coating layer after film formation has good hardness and paint film adhesive force, so that the overall thickness of the coating layer is greatly reduced while the corrosion resistance of the coating layer is ensured, the coating layer is effectively prevented from falling off, and the damage of external collision to the steel surface is reduced.
The number of layers and the sheet diameter of the graphene also directly influence the overall structure of the coating layer, such as the shape quality of a layered structure, the adhesive force of a paint film and the like, wherein the thickness of each layer of the graphene is 0.30-0.40 nm, the total thickness is 0.7-2.0 nm, and the sheet diameter is 5-20 mu m; the number of layers of graphene is preferably 4, the total thickness is preferably 1.3 to 1.6nm, and the sheet diameter is preferably 10 to 20. Mu.m.
Because the top coat is directly contacted with the external environment, the characteristics of wear resistance, skid resistance, water resistance and the like of the top coat need to be considered, and the top coat comprises the following components in percentage by weight: 5-10% of 2-5 layers of graphene, 40-60% of hydroxy acrylic resin, 15-30% of amino resin, 10-20% of high wear-resistant auxiliary agent and the balance of filler and pigment. Here, after the surface coating is sprayed, the surface is baked and solidified by adopting high-temperature organic resin, and insulation treatment is performed, so that electric leakage and electric shock risks are prevented, and the installation of the power station also has the effect of lightning protection.
The hydroxyl acrylic resin is high molecular weight resin, has good ageing and corrosion resistance, but has certain limitation, and the graphene can further improve the upper limit of the performance; the water resistance and neutral salt fog are more than 2 times of that of the conventional hydroxy acrylic resin; the amino resin can improve the hardness of the film formed on the surface, the hardness strength is determined according to the content, the film formed surface is not uniform enough in dispersion, graphene is added, the graphene is a C sheet with C atoms orderly distributed in a hexagonal lattice form, the structure is very stable, the film is not easy to deform under the action of external force, and the impact resistance and hardness performance are improved; the graphene layer-to-layer lubrication effect is good, the graphene lamellar structure can divide the coating into a plurality of cells, so that the internal stress of the coating is effectively reduced, the flexibility, impact resistance and wear resistance of the coating are improved, the graphene lamellar structure is overlapped and staggered layer by layer, a complex network shielding structure can be formed in the coating, infiltration, water infiltration and diffusion of corrosive media can be effectively inhibited, and the physical barrier property and water resistance of the coating are improved.
The graphene surface coating formula system is composed of graphene, hydroxy acrylic resin, amino resin and high wear-resistant auxiliary agent, the high wear-resistant auxiliary agent is added to enable the surface coating to have good wear resistance and skid resistance, the surface friction coefficient is more than 0.45, and the problems of dislocation, inclination, scratch and the like caused by sliding of products in the processes of packaging, transportation, turnover and stacking are solved; meanwhile, the combination of graphene, hydroxy acrylic resin and amino resin also improves the compactness of a paint film.
As a preferred embodiment, the high abrasion resistance aid is a methylene polymer.
The primer is positioned between the top coating and the alloy coating, has good contact performance with the alloy coating, and has the effect of delaying the chemical corrosion of the metal surface, and the primer comprises the following components in percentage by weight: 5-10% of 2-5 layers of graphene, 30-40% of epoxy resin, 15-25% of amino resin and the balance of filler and pigment.
The epoxy resin is used as a connecting layer with a coating, the effects of corrosion resistance and adhesive force are emphasized, the graphene has high specific surface area, so that the graphene has strong surface adsorption force and large surface energy, and can form a net structure when the coating is dried, thereby enhancing the adsorption effect of the coating and a substrate, enabling the coating to be more compact, improving the adhesive force of the coating to the substrate, and simultaneously being beneficial to improving the impact resistance of the coating.
The graphene primer coating formula system composed of graphene, epoxy resin and amino resin is adopted, and the hydrophobic characteristic of graphene is utilized and added into the coating to prevent water molecules from contacting a metal matrix or a metal coating, so that an anti-corrosion effect is achieved; the electrons lost by Fe in the paint are transferred to the surface of the paint layer by utilizing the excellent conductivity of the graphene, so that Fe precipitation is avoided, and the electrochemical corrosion speed is reduced.
As a preferred embodiment, the alloy coating comprises the following components in percentage by weight: 6.0 to 13.0 percent of aluminum, 2.0 to 4.0 percent of magnesium, 0.1 to 2.0 percent of silicon, 0.1 to 2 percent of trace elements and the balance of zinc.
As a preferred embodiment, the thickness of the alloy plating layer is not less than 15 μm, and the gram weight is not less than 90g/m 2 。
As a preferred embodiment, the primer coating has a thickness of 15 to 25 μm, the topcoat has a thickness of 15 to 25 μm, and the corrosion-preventing coating has a total thickness of 30 to 50 μm.
The embodiment also provides a frame, and the anti-corrosion profile is adopted.
The embodiment also provides a solar cell module, which comprises the frame and a lamination piece arranged on the frame.
The embodiment also provides a bracket, which adopts the anti-corrosion profile.
The embodiment also provides a photovoltaic system, which comprises the bracket and one or more solar cell modules arranged on the bracket.
The advantageous effects of the steel material according to the present embodiment in terms of corrosion resistance and the like will be further reviewed by several sets of examples and comparative examples.
Embodiment one:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.2g/m 2 。
Embodiment two:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 6.8% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 8.2 percent of 2-5 layers of graphene, 35 percent of epoxy resin, 20 percent of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.1g/m 2 。
Embodiment III:
in the embodiment, the steel comprises a base material, an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a tubular steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to punching, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and curing the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 8.5% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 8.5% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.2g/m 2 。
Embodiment four:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a rod-shaped steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 8.8% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.1g/m 2 。
Fifth embodiment:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 5% of 2-5 layers of graphene, 50% of hydroxyl acrylic resin, 20% of amino resin, 15% of high-wear-resistance auxiliary agent and the balance of filler and pigment, wherein the high-wear-resistance auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 5% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon and 1.0% of trace elements, the balance being zinc alloy coating with a thickness of 18 mu m and a gram weight of 98.2g/m 2 。
Example six:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 10% of 2-5 layers of graphene, 50% of hydroxyl acrylic resin, 20% of amino resin, 15% of high-wear-resistance auxiliary agent and the balance of filler and pigment, wherein the high-wear-resistance auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 10% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon and 1.0% of trace elements, the balance being zinc alloy coating with a thickness of 18 mu m and a gram weight of 98.1g/m 2 。
Embodiment seven:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 0.70nm, and the sheet diameter is 6 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.0g/m 2 。
Example eight:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.05nm, and the sheet diameter is 6 μm.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum and 3.0% of magnesium 1.0 percent of silicon, 1.0 percent of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.0g/m 2 。
Example nine:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.65nm, and the sheet diameter is 12 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.2g/m 2 。
Example ten:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 15 μm, the thickness of the top coat is 15 μm, and the total thickness of the corrosion-resistant coating is 30 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 14.0nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.2g/m 2 。
Example eleven:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coating is 25 μm, the thickness of the top coating is 25 μm, and the total thickness of the corrosion-resistant coating is 50 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 14.0nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.1g/m 2 。
Embodiment twelve:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 6.0% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.3g/m 2 。
Embodiment thirteen:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 13% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.0g/m 2 。
Comparative example one:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 4.0% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 4.0% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.0g/m 2 。
Comparative example two:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 12.0% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 12.0% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18um, and the gram weight is 98.2g/m 2 。
Comparative example three:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of single-layer graphene, 50% of hydroxyl acrylic resin, 20% of amino resin, 15% of high-wear-resistance auxiliary agent and the balance of filler and pigment, wherein the high-wear-resistance auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of single-layer graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of the graphene is 0.35nm, and the sheet diameter is 6 μm.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.1g/m 2 。
Comparative example four:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 6-layer graphene, 50% of hydroxyl acrylic resin, 20% of amino resin, 15% of high-wear-resistance auxiliary agent and the balance of filler and pigment, wherein the high-wear-resistance auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 6-layer graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 2.1nm, and the sheet diameter is 12 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.0g/m 2 。
Comparative example five:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 12 μm, the thickness of the top coat is 12 μm, and the total thickness of the corrosion-resistant coating is 24 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0%Silicon, 1.0 percent of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.2g/m 2 。
Comparative example six:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 30 μm, the thickness of the top coat is 30 μm, and the total thickness of the corrosion-resistant coating is 60 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 9.5% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.1g/m 2 。
Comparative example seven:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 5.0% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.1g/m 2 。
Comparative example eight:
in the embodiment, the steel comprises a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the base material is a platy steel base material, the anti-corrosion coating comprises a bottom coating and a top coating, when the steel base material is subjected to anti-corrosion treatment, the surface of the steel base material is plated with the alloy plating layer, then the steel base material is subjected to perforation, cutting and other processing, and then the special anti-corrosion coating is formed by spraying the bottom coating and the top coating, spraying the two layers and baking and solidifying the steel base material at high temperature.
The surface coating comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 50% of hydroxy acrylic resin, 20% of amino resin, 15% of high wear-resistant auxiliary agent and the balance of filler and pigment, wherein the high wear-resistant auxiliary agent is a methylene polymer.
The base coat comprises the following components in percentage by weight: 7.3% of 2-5 layers of graphene, 35% of epoxy resin, 20% of amino resin and the balance of filler and pigment. The thickness of the primer coat is 20 μm, the thickness of the top coat is 20 μm, and the total thickness of the corrosion-resistant coating is 40 μm.
The thickness of each layer of graphene is 0.35nm, the total thickness is 1.4nm, and the sheet diameter is 8 mu m.
The alloy coating comprises the following components in percentage by weight: 14.0% of aluminum, 3.0% of magnesium, 1.0% of silicon, 1.0% of trace elements and the balance of zinc, wherein the thickness of the alloy coating is 18 mu m, and the gram weight is 98.1g/m 2 。
The steel obtained in the thirteen groups of examples and the eight groups of comparative examples and adopting a common outdoor anti-corrosion coating is subjected to corrosion resistance, ultraviolet and UV aging resistance, paint film adhesion, paint film compactness, hardness, wear resistance and other tests, wherein the corrosion resistance adopts the 8-level corrosion resistance test of the highest standard salt spray in IEC61701 to carry out a salt spray corrosion resistance test on the steel, and the ultraviolet radiation amount of the ultraviolet and UV aging resistance test is 1050kWh/m 2 The wet heat resistance test was DH3000 hours wet heat test, and the test results are shown in Table 1.
TABLE 1 test results of corrosion protection, aging resistance and wet heat resistance
Figure BDA0004144320140000231
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Figure BDA0004144320140000241
As shown in table 1, the steels in the examples and the comparative examples pass through the neutral salt spray test for more than 2000 hours, and the highest standard salt spray 8-level corrosion resistance test in the photovoltaic industry standard IEC61701 has no obvious poor appearance and no corrosion phenomenon; the anti-ultraviolet and UV aging can reach more than 1000kwH, and the surface of the steel is free from falling off and cracking after test, and only has slight fading; the heat-moisture-resistant DH test can reach 3000H hours in the CGC third-party organization test, and has no appearance defect.
The paint film adhesion is tested by using a hundred-grid method and a solvent wiping method in the ISO 2409-2020 standard, the paint film compactness is tested by boiling water for 24 hours, the paint film hardness is tested by using the GB/T6739-2006 standard, the wear resistance is tested by using a 1mm steel plate, after the paint film is loaded with 1000g of the paint, the rotation speed is 60-90 per minute, the rotation speed is 5000 r, and the test results are shown in Table 2.
TABLE 2 paint film adhesion, paint film compactibility, paint film hardness and wear resistance test results
Figure BDA0004144320140000251
As shown in Table 2, in examples one to thirteen, the hardness of the steel paint film is basically more than 3H, the adhesive force reaches 0 level, and the steel paint film has excellent adhesive force; after 24 hours of water boiling, the surface of the steel has no foaming and fading phenomenon, the surface of the steel has no paint film falling off after 5000 revolutions, and the paint film loss is less than 0.03g.
The steel material of example one and the common coating steel material were subjected to wear resistance test, using a 1mm steel plate, and after 1000g of the steel material was loaded, the wear amounts at 1000 rpm, 2000 rpm, 3000 rpm, 4000 rpm and 5000 rpm were counted, and the results are shown in table 3.
Table 3 comparison of the results of the abrasion resistance test of the steels in example one with the ordinary coated steels
Figure BDA0004144320140000252
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Figure BDA0004144320140000261
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. The anti-corrosion profile is characterized by comprising a base material, and an alloy plating layer and an anti-corrosion coating which are sequentially arranged on the surface of the base material from inside to outside, wherein the anti-corrosion coating comprises a bottom coating and a top coating, and the bottom coating and the top coating both contain at least 5% of 2-5 layers of graphene according to weight percentage.
2. The anticorrosive profile according to claim 1, wherein each layer of graphene has a thickness of 0.30-0.40 nm, a total thickness of 0.7-2.0 nm, and a sheet diameter of 5-20 μm.
3. An anti-corrosion profile according to claim 1, wherein the top coating comprises the following components in weight percent: 5-10% of 2-5 layers of graphene, 40-60% of hydroxy acrylic resin, 15-30% of amino resin, 10-20% of high wear-resistant auxiliary agent and the balance of filler and pigment.
4. A corrosion protection profile according to claim 3, characterized in that the high wear resistance auxiliary agent is a methylene polymer.
5. An anti-corrosion profile according to claim 1, wherein the primer comprises the following components in weight percent: 5-10% of 2-5 layers of graphene, 30-40% of epoxy resin, 15-25% of amino resin and the balance of filler and pigment.
6. An anti-corrosion profile according to claim 1, wherein the alloy coating comprises the following components in weight percent: 6.0 to 13.0 percent of aluminum, 2.0 to 4.0 percent of magnesium, 0.1 to 2.0 percent of silicon, 0.1 to 2.0 percent of trace elements and the balance of zinc.
7. An anticorrosive profile according to claim 1, characterized in that the thickness of the alloy coating is not less than 15 μm and the single-sided grammage is not less than 90g/m 2 。
8. An anti-corrosion profile according to claim 1, wherein the primer coating has a thickness of 15-25 μm, the top coating has a thickness of 15-25 μm, and the anti-corrosion coating has a total thickness of 30-50 μm.
9. An anti-corrosion profile according to claim 1, wherein the substrate is a sheet, tube or rod shaped steel substrate.
10. A frame, characterized in that a corrosion protection profile according to any one of claims 1-9 is used.
11. A solar cell module comprising the bezel of claim 10 and a laminate mounted on the bezel.
12. A stent characterized in that a corrosion protection profile according to any one of claims 1-9 is used.
13. A photovoltaic system comprising the bracket of claim 12 and one or more solar cell modules mounted on the bracket.
CN202310299146.XA 2023-03-24 2023-03-24 Anticorrosive section bar, frame, solar module, support and photovoltaic system Pending CN116426153A (en)

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