CN111205738B - Low-zinc anticorrosive composition compounded by graphene and flaky conductive material and application thereof - Google Patents
Low-zinc anticorrosive composition compounded by graphene and flaky conductive material and application thereof Download PDFInfo
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Abstract
The invention discloses a low-zinc anticorrosive composition compounded by graphene and a flaky conductive material and application thereof. The low-zinc anticorrosive composition comprises a resin matrix system, a high-purity carbon graphene material, a flaky conductive silicate material, zinc particles, a functional filler and an auxiliary agent. The high-purity carbon graphene material and the flaky conductive silicate material in the anticorrosive coating formed by the low-zinc anticorrosive composition are compounded into a micro-nano structure in a layer-by-layer overlapping manner, and form an electron transfer network with zinc particles. The invention not only realizes the layer-by-layer superposition of the high-purity carbon graphene material and the sheet conductive silicate material to form a compact physical barrier, but also is connected with zinc powder to form a conductive loop, thereby greatly improving the corrosion resistance of the coating, playing a longer role in protecting a steel substrate than a zinc-rich coating, having stronger anti-cracking mechanical property, improving the physical properties of the coating such as adhesive force, impact resistance and the like, and having good conductive performance and antistatic function.
Description
Technical Field
The invention relates to an anticorrosive coating, in particular to a low-zinc anticorrosive composition compounded by high-purity carbon graphene and sheet-shaped conductive silicate, a preparation method thereof, a coating formed by the composition and an application of the composition, and belongs to the technical field of protective materials.
Background
The use of organic coatings to protect steel from corrosion is a widely used protection method. The organic coating corrosion prevention consists of three mechanisms: 1) mechanical barrier, namely the coating layer blocks corrosive medium from invading the surface of the conductive material; 2) if the corrosion medium is soaked on the surface of the steel, zinc is sacrificed by zinc-containing particles of the coating to generate cathodic protection; 3) if localized corrosion begins to occur but the coating has a corrosion inhibiting effect, the corrosion cannot propagate. The coating in direct contact with steel is a primer, a large amount of zinc powder is needed to be contained to enable the zinc powder and the zinc powder to be in contact with the steel to form a conductive path, the potential of the zinc is lower than that of iron and is easy to lose electrons, the iron and the steel are protected from being corroded by losing electrons earlier than the iron in the presence of a corrosion medium, and the zinc becomes an anode. This mechanism is known as cathodic protection of sacrificial zinc powder. Since this mechanism is required to ensure that the zinc particles and the surface of the steel substrate have a conductive path, the composition of the coating is required to contain a high proportion of the zinc component.
The anti-corrosion protection of the steel structure by the international standard ISO 12944-2017 colored paint and varnish-protective paint system formulated by the ISO/TC35 colored paint and varnish technical Committee of Steel Structure anti-corrosion paint System SC14 division Committee is a paint technical index and test method aiming at the corrosion protection design of the steel structure by adopting the paint system and the coating layer and meeting the requirements of different corrosion environments and protection lives. The corrosive environment at high salinity coastal and offshore is defined as the protective requirement age of C5 of 15-25 years, and the requirement of neutral salt fog resistance of the coating in this document is 1440 hours. The hours of salt spray is an important index for evaluating the protection performance and the protection service life by an accelerated corrosion mode adopted by the paint corrosion prevention industry. In order to obtain a high corrosion protection effect, it is required that the zinc powder content is as high as possible. As in ISO12944 part 5: the protective coating system is defined by that the zinc-rich primer is defined in a dry paint film, and the mass content of zinc powder is not less than 80%. The high zinc content is defined to achieve adequate protection in harsh corrosive environments. However, the high zinc content makes the resin phase in the dry film of the coating very poor and often insufficient to cover the surface of the pigments and fillers, the structure of the paint film becomes loose and insufficient to provide good barrier effect, and this brings about a reduction in the mechanical properties of the paint film, a reduction in the impact resistance and easy cracking. In the commercial aspect, the high zinc content is also not beneficial to reducing the cost of the coating and protecting important strategic resources of the metallic zinc. The industry is making an effort to utilize zinc powder to the maximum extent to obtain the best anti-corrosion effect and mechanical properties through various technical approaches.
For example, patent publication No. CN109486343A discloses a powdered bimetallic coating using graphene and zinc and aluminum powders and a method for preparing the same, and the components of the technique are all solid powder components. The powder coating is used for a forming process which needs to melt the powder at high temperature, so that the powder coating can not be used for protecting large-sized steel structural parts and outdoor structural parts. The fields of application of powder coatings and liquid anticorrosive coatings are very different. For another example, CN108485476A discloses a zinc-olefin anticorrosive paint for steel structure corrosion protection, which adopts zinc powder as a flake material with the number of graphene layers being 30 or less, and the content of zinc powder is 0.01-28%, which is the content of ultra-low zinc. The definition of the standard of HG/T5573-2019 graphene zinc powder coating on graphene is that graphene materials are defined in 1-10 layers. Therefore, according to the current standard, the combination is not a strict graphene coating, the zinc content in a dry film is lower than 30%, and the requirement that the zinc content is more than 30% in the standard cannot be met. For another example, CN109762446A discloses a water-based epoxy graphene zinc anticorrosive paint, a preparation method and an application thereof, the invention uses water-based epoxy resin as a matrix, and graphene slurry and zinc powder are added to form a synergistic effect, but the used extender pigment includes any one or a combination of more than two of talcum powder, mica powder and precipitated barium sulfate. However, these pigments and fillers are insulators in the coating and do not participate in the establishment of a conductive network.
Disclosure of Invention
The invention mainly aims to provide a graphene and flaky conductive material compounded low-zinc anticorrosive composition and a preparation method thereof, so that zinc powder can play a role in a conductive and barrier network formed by a graphene compounded flaky conductive material to the greatest extent to improve the corrosion resistance and the mechanical property.
The invention also aims to provide application of the low-zinc anticorrosion composition compounded by the graphene and the flaky conductive material.
In order to achieve the purpose, the technical scheme adopted by the invention comprises the following steps:
the embodiment of the invention provides a graphene and sheet-shaped conductive material compounded low-zinc anticorrosive composition, which comprises the following components in percentage by solid dry film: the composite material comprises a resin matrix system, a high-purity carbon graphene material, a sheet-shaped conductive silicate material, zinc particles, a functional filler and an auxiliary agent.
In some embodiments, the low zinc preservative composition comprises the following components in mass percent, calculated on a solid dry film basis: 10-30% of a resin matrix system, 0.1-2% of a high-purity carbon graphene material, 2-10% of a sheet conductive silicate material, 25-70% of zinc particles, 2-35% of a functional filler and 0.5-3% of an auxiliary agent.
In some embodiments, the graphene material has a carbon content of 90wt% or more and has 1 to 10 layers.
The embodiment of the invention also provides an anticorrosive coating formed by the low-zinc anticorrosive composition compounded by the graphene and the sheet-shaped conductive material, wherein the high-purity carbon graphene material and the sheet-shaped conductive silicate material are overlapped layer by layer to form a micro-nano structure, and form an electron transfer network with zinc particles.
The embodiment of the invention also provides a preparation method of an anticorrosive coating formed by the low-zinc anticorrosive composition compounded by the graphene and the flaky conductive material, which comprises the following steps: uniformly mixing a resin matrix system, a high-purity carbon graphene material, a sheet-shaped conductive silicate material, zinc particles, a functional filler, an auxiliary agent and a solvent, and then removing the solvent to obtain the anticorrosive coating.
The embodiment of the invention also provides an anti-corrosion system which comprises a primer, a middle paint and a finish paint, wherein the primer is selected from the low-zinc anti-corrosion composition compounded by the graphene and the flaky conductive material.
The embodiment of the invention also provides application of the low-zinc anticorrosive composition or anticorrosive coating or anticorrosive system compounded by the graphene and the flaky conductive material in the field of anticorrosion, conduction or antistatic of the surface of the substrate.
For example, the embodiment of the present invention also provides a method for preventing corrosion of a substrate surface, which includes: and applying the low-zinc anticorrosive composition compounded by the graphene and the sheet-shaped conductive material to the surface of the substrate to form an anticorrosive coating.
Compared with the prior art, the invention has the beneficial effects that:
1) the low-zinc anti-corrosion composition containing graphene and sheet conductive silicate provided by the invention can be used for a primer for an anti-corrosion coating system to be in contact with the surface of steel, provides more excellent anti-corrosion performance and stronger anti-cracking mechanical performance compared with the traditional zinc-rich primer, improves the physical properties of the coating such as adhesive force, impact resistance and the like, and has good conductive performance and an anti-static function;
2) according to the invention, the high-purity carbon graphene and the flaky filler are laminated layer by layer to form a good micro-nano combination, so that the corrosion of water, oxygen and a corrosive medium is prevented, and the conductive components and zinc powder particles are connected into a conductive loop, so that the metal zinc can fully exert the cathode protection effect, the corrosion resistance of the coating is greatly improved, and the steel substrate is protected for a longer time, and the high-purity carbon graphene separated by adopting a safe and environment-friendly mechanical intercalation has the carbon content of more than 90wt%, so that the introduction of oxygen-containing groups is reduced, and the existence of hydrophilic groups is reduced, so that the foaming problem of the coating is solved, and the protective coating with higher conductivity and better corrosion resistance is prepared;
3) in the field of corrosion prevention, the composition can be used for protecting steel structure equipment and facilities, such as rail transit, bridge airports, wind power and thermal power energy fields, marine engineering equipment, petroleum storage equipment (oil pipes and oil tanks), oil and gas pipelines, chemical equipment and factory halls, high-rise building steel structures, drinking water facilities, garbage treatment equipment and the like, and the antistatic and heat-conducting functions can be widely applied to the fields of electric conduction and static prevention of various industrial departments such as petroleum, chemical engineering, building materials, electronics, electromechanics, communication, automobiles, paper making, textile, packaging, printing, ships, ceramics, aerospace, weapons and the like.
Detailed Description
Aiming at the defects of the existing anticorrosive paint, the inventor of the invention provides a technical scheme of the invention through long-term research and massive practice, wherein a high-purity carbon graphene material and a flaky conductive non-metal silicate mineral filler are compounded into an anticorrosive composition containing zinc powder to protect the surface of steel from being rusted and used as a primer. The technical solution, its implementation and principles, etc. will be further explained as follows.
An aspect of embodiments of the present invention provides a low zinc anti-corrosion composition including graphene and a sheet-like conductive silicate, the low zinc anti-corrosion composition including, based on a solid dry film: the composite material comprises a resin matrix system, a high-purity carbon graphene material, a sheet-shaped conductive silicate material, zinc particles, a functional filler and an auxiliary agent.
In some embodiments, the low zinc preservative composition comprises the following components in mass percent, calculated on a solid dry film basis: 10-30% of a resin matrix system, 0.1-2% of a high-purity carbon graphene material, 2-10% of a sheet conductive silicate material, 25-70% of zinc particles, 2-35% of a functional filler and 0.5-3% of an auxiliary agent.
In some embodiments, the high-purity carbon graphene material is high-purity carbon, that is, a graphene material with a carbon content of 90wt% or more and 1-10 layers, and is a nanocarbon material dispersed in a liquid medium.
Further, the graphene material is in a solid powder state, or is added into a solution to be dispersed to form graphene dispersion slurry.
In some embodiments, the sheet-like conductive silicate material is a sheet-like conductive non-metal silicate mineral filler, including, but not limited to, mica powder, quartz sand, glass flake, etc., which are surface-coated with conductive antimony-doped and/or aluminum-doped tin dioxide.
When the anticorrosive composition disclosed by the invention forms a coating or a paint film, the two flaky conductive media of the graphene material and the flaky conductive silicate material are cooperatively compounded at a micro-nano scale and form an electronic transfer network with zinc powder, so that electrochemical cathode protection covering a full coating is provided for a steel substrate, and meanwhile, a dense physical barrier is formed by filling the nano-scale two-dimensional structure of the graphene into gaps of a flaky conductive filler with a relatively large scale, so that the anticorrosive performance of the coating is further improved.
Further, the sheet diameter range of the sheet-shaped conductive silicate material is 10-50 μm.
In some embodiments, the resin matrix system includes waterborne, solventborne, and solventless epoxy systems, waterborne inorganic silicate systems, or solventborne inorganic silicate systems.
Further, the anticorrosive composition of the present invention may use a solvent-based, aqueous or solvent-free epoxy resin, a solvent or an aqueous inorganic silicic acid resin as a base system.
Further, the epoxy resin contained in the resin matrix system includes any one or a combination of two or more of bisphenol a epoxy resin, bisphenol F epoxy resin, novolac epoxy resin, and the like, but is not limited thereto.
Further, the resin matrix system comprises an epoxy resin system and/or an aqueous epoxy resin dispersion emulsified in water, preferably comprising a bisphenol a based epoxy resin and an inorganic silicate system emulsified in water.
Further, the resin matrix system further includes a curing agent, preferably including any one or a combination of two or more of an aliphatic polyamine curing agent, an aromatic polyamine curing agent, a polyamide curing agent, a modified phenol-aldehyde amine curing agent, a tertiary amine curing agent, and the like, but not limited thereto.
In some embodiments, the low zinc corrosion inhibiting composition comprises 25 to 70 wt%, preferably 30 to 60wt% zinc particles. In the anticorrosive composition, the using amount of zinc particles can be greatly reduced to 25-70% of the weight of a dry film of the composition, or more optimized to 30-60%, the anticorrosive performance is greatly improved, the salt spray resistance is over 3000 hours, and the mechanical cracking resistance of the paint film is improved. The chemical properties of the composition coating are stable, and the physical properties of the coating, such as adhesion, impact resistance, hardness, wear resistance and the like, are improved.
In some embodiments, the zinc particles employ zinc powder having a metallic zinc content of 90 to 99 wt.%, preferably 95 to 99 wt.%.
Further, the shape of the zinc powder comprises a sphere or a sheet, and the particle size is 300-1000 meshes, preferably 325-600 meshes.
In some embodiments, the morphology of the functional filler is spherical or irregular, preferably spherical SiO2Any one or a combination of two or more of spherical ceramic powder, spherical silica powder, spherical polymer beads, and the like, but not limited thereto.
In some embodiments, the adjuvant includes any one or a combination of two of a thickener (e.g., selected from organobentonite, polyamide wax, etc.), a wetting and dispersing agent (e.g., selected from unsaturated polyamides, modified polysiloxane carboxylic acid polymers, etc.), and the like, but is not limited thereto.
Wherein, in some more specific preferred embodiments, the graphene and sheet-like conductive silicate containing low zinc corrosion protection composition comprises the following components in weight percent based on the total solid weight of the composition:
1) 10-30% of a resin matrix system: selected from water-borne, solvent-borne and solventless epoxy resins, the inorganic resin being a water-borne or solvent-borne inorganic silicate system;
2) 0.1-2% of high-purity carbon graphene material, wherein the graphene is 1-10 layers of graphene material with carbon content more than 90 wt%;
3) 2-10% of sheet conductive silicate material, coating antimony-doped or aluminum-doped conductive inorganic silicate material, such as conductive mica powder, conductive quartz powder and conductive glass flake;
4) 25-70% of zinc powder, and spherical or flaky zinc powder with 90-99% of metal zinc content;
5) 2-35% of spherical functional filler, spherical SiO2Spherical ceramic powder, spherical silica powder, spherical polymer beads, etc.;
6) 0.5-3% of an auxiliary agent.
The anticorrosive composition can be used for a primer for contacting an anticorrosive coating system and the surface of steel, and the formed coating can provide more excellent anticorrosive performance than the traditional zinc-rich primer and stronger anti-cracking mechanical performance, and has good conductive performance and antistatic function.
The embodiment of the invention also provides an anticorrosive coating formed by the low-zinc anticorrosive composition compounded by the graphene and the sheet-shaped conducting material, wherein the high-purity graphene material and the sheet-shaped conducting silicate material in the anticorrosive coating are overlapped layer by layer to form a micro-nano structure, and form an electron transfer network with zinc particles.
Furthermore, when the thickness of the anticorrosive coating is 80-110 mu m, the salt spray resistance is more than 3000 hours.
Further, when the thickness of the anti-corrosion coating is 300 μm, the anti-cracking performance is not cracked for more than 50 times after the accelerated anti-cracking (NACE TM 0404-2004) from-20 ℃ to 60 ℃ under high and low temperature, and the volume resistivity of the conductivity of the anti-corrosion coating measured by GBT 1410-2006 in a salt fog environment is 1.0x10 after 1500 hours9And the adhesion between the anticorrosive coating and the base material is more than 8.0MPa, and the impact resistance is more than 55 cm.
Furthermore, the content of zinc particles in the anticorrosive coating is 25-70 wt%, and preferably 30-60 wt%.
Another aspect of the embodiments of the present invention also provides a method for preparing an anticorrosive coating formed of a low-zinc anticorrosive composition in which the aforementioned graphene and a sheet-like conductive material are compounded, including: uniformly mixing a resin matrix system, a high-purity carbon graphene material, a sheet-shaped conductive silicate material, zinc particles, a functional filler, an auxiliary agent and a solvent, and then removing the solvent to obtain the anticorrosive coating.
Further, the solvent may be any one or a combination of two or more of xylene, n-butanol, isobutanol, benzyl alcohol, and the like, but is not limited thereto.
The preparation method adopts the high-conductivity graphene material, combines other flaky conductive fillers, and is assisted by a specific proportion and a specific formula, so that the graphene can be uniformly dispersed in the coating, the good micro-nano combination formed by the overlapping of the graphene and the flaky fillers is realized, the erosion of water, oxygen and corrosive media is prevented, and the conductive components and zinc powder particles of the coating are connected into a conductive loop, so that the metal zinc can fully exert the cathode protection effect, the corrosion resistance of the coating is greatly improved, and the steel substrate is protected for a longer time.
In another aspect of the embodiments of the present invention, there is also provided an anticorrosion system comprising a primer, a middle paint and a top paint, wherein the primer is selected from the low-zinc anticorrosion composition compounded by the graphene and the flaky conductive material.
Furthermore, the intermediate paint or the finish paint takes any one or the combination of more than two of epoxy resin, phenolic resin, polyurethane, polyurea, acrylic ester, fluorocarbon resin and the like as a matrix.
In another aspect of the embodiment of the invention, the application of the low-zinc anticorrosion composition or the anticorrosion coating or the anticorrosion system compounded by the graphene and the flaky conductive material in the field of anticorrosion, electric conduction or static prevention of the surface of the substrate is also provided.
Further, the base material includes a steel material, but is not limited thereto.
Further, the substrate includes, but is not limited to, a rail transit device, a bridge airport device, a wind-power thermal-power energy device, a marine facility, an oil storage device (such as an oil pipe or an oil tank, etc.), an oil and gas pipeline, a chemical plant, a factory building, a high-rise building steel structure, a drinking water facility, or a garbage disposal device.
For example, another aspect of an embodiment of the present invention also provides a method for preventing corrosion of a surface of a substrate, including: and applying the low-zinc anticorrosive composition compounded by the graphene and the sheet-shaped conductive material to the surface of the substrate to form an anticorrosive coating.
Further, the substrate surface corrosion prevention method comprises the following steps: and applying the low-zinc anti-corrosion composition compounded by the graphene and the flaky conductive material to the surface of the substrate at least in a coating or spraying manner.
Further, the base material includes a steel material, but is not limited thereto.
Further, the substrate includes, but is not limited to, a rail transit device, a bridge airport device, a wind-power thermal-power energy device, a marine facility, an oil storage device (such as an oil pipe or an oil tank, etc.), an oil and gas pipeline, a chemical plant, a factory building, a high-rise building steel structure, a drinking water facility, or a garbage disposal device.
The anticorrosive composition of the invention is directly coated or sprayed on the surface of steel, so that the steel and the structure and equipment made of the steel can be effectively and permanently prevented from being corroded by the environment. The paint can be matched with intermediate paint or finish paint which takes epoxy resin, phenolic resin, polyurethane, polyurea, acrylic ester and fluorocarbon resin as matrixes to form an anti-corrosion system, and is used for corrosion protection of bridges, rail transit, petroleum and petrochemical facilities, thermal power and wind power, structures of coasts and gulfs, offshore oil platforms, marine structures, offshore facilities and the like.
The design principle and the characteristics of the invention may lie in: the anticorrosive composition utilizes a high-purity carbon graphene material, a conductive flaky filler and zinc powder to jointly form a nano-micron conductive and physical barrier network. The sheet diameter of graphene is generally 10 microns and the sheet diameter of a sheet conductive inorganic silicate material is 10-30 microns, the graphene and the sheet conductive inorganic silicate material are fully overlapped, meanwhile, a nanoscale two-dimensional structure of the graphene is filled into gaps of a relatively large-scale sheet conductive filler to form a compact structure, an excellent physical barrier effect is achieved, a conductive network is comprehensively formed on zinc powder particles of the coating, an insulating primer is endowed with a static electricity conducting function, the zinc powder in the coating can comprehensively participate in a cathode protection reaction, and a micro-nano combined sheet mechanism enables a coating film to have firm water resistance and oxygen and corrosion medium invasion, so that the corrosion resistance is greatly improved, and the effect of high zinc content can be achieved even in a low-content zinc powder composition. When the zinc content of the coating is 30 wt%, the salt spray resistance of the coating can reach or exceed that of the existing similar coating when the zinc content of a solid film is 75 wt%. In the field of corrosion prevention, the anticorrosive composition can be used for protecting steel structure equipment and facilities, such as rail transit, bridge airports, the field of wind power and thermal power energy, petroleum storage equipment (oil pipes and oil tanks), oil and gas pipelines, chemical equipment and factory halls, high-rise building steel structures, drinking water facilities, garbage treatment equipment and the like. The function of static electricity prevention and heat conduction can be widely applied to the fields of electricity conduction and static electricity prevention of various industrial departments such as petroleum, chemical engineering, building materials, electronics, electromechanics, communication, automobiles, papermaking, textiles, packaging, printing, ships, ceramics, aerospace, weapons and the like.
In conclusion, by the technical scheme, the low-zinc anticorrosive composition can be used for the primer contacting an anticorrosive coating system and the surface of steel, provides more excellent anticorrosive performance and stronger anti-cracking mechanical performance compared with the traditional zinc-rich primer, improves the physical properties of the coating such as adhesive force, impact resistance and the like, and has good conductive performance and antistatic function.
The technical solution of the present invention is further explained below with reference to several examples, but the present invention is not limited thereto. It is to be understood, however, that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with one another to form new or preferred embodiments. Not to be reiterated herein, but to the extent of space.
The test methods described in the following examples are all conventional methods unless otherwise specified; the reagents and materials are commercially available, unless otherwise specified.
The ratios used in the following examples are shown, for example, in table 1 below:
table 1 ratio of the amounts used in the examples
Component B is a commercially available polyamide curing agent.
Comparative example 4
This comparative example is substantially the same as example 1 except that: the high purity graphene in example 2 was changed to redox graphene.
Comparative example 5
This comparative example is substantially the same as example 3 except that: the high purity graphene in example 3 was changed to redox graphene.
Preparation of example 1
The specific preparation process of the component A comprises the following steps:
1) 15g of epoxy resin 901 (75% solids) was added to a vessel with a stirrer;
2) adding 2.5g of solvent xylene, and stirring at the rotating speed of 500r/min for 5 min;
3) adding 1.2g of thickening agent into the resin solution obtained in the step 2) under stirring;
4) adding 0.3g of wetting dispersant into the resin solution obtained in the step 3) under stirring;
5) adding 10g of graphene slurry into the mother liquor 2 obtained in the step 4) under stirring;
6) adding 5g of flaky conductive filler into the material obtained in the step 5) under stirring;
7) adding 30g of zinc powder into the material obtained in the step 6), stirring at 3000r/min for 10min,
8) adding 34g of functional filler into the material obtained in the step 7), stirring at 3000r/min for 20min,
9) adding 2g of solvent into the material obtained in the step 8), stirring, and stirring at 500r/min for 10min to obtain the component A.
And mixing the component A with the component B, and then removing the solvent xylene to obtain the graphene and sheet conductive material compounded low-zinc anticorrosive composition.
The preparation of examples 2-3 corresponds essentially to example 1.
Example 4
The graphene and sheet-like conductive material composite low-zinc anticorrosive composition provided in the embodiment is a solid dry filmThe composition comprises the following components in percentage by mass: 30% of bisphenol F epoxy resin, 2% of high-purity carbon graphene powder, 8% of mica powder with surface coated with conductive aluminum-doped tin dioxide, 25% of zinc powder and 25% of spherical SiO21% of polyamide wax, 2% of unsaturated polybasic amide and 7% of tertiary amine curing agent.
The preparation method of the low-zinc anticorrosive composition comprises the following steps: the bisphenol F epoxy resin, the high-purity carbon graphene powder, the mica powder with the surface coated with the conductive aluminum-doped stannic oxide, the zinc powder and the spherical SiO in the proportion are mixed2The low-zinc anticorrosive composite is prepared by uniformly mixing polyamide wax, unsaturated polybasic amide, tertiary amine curing agent and solvent n-butyl alcohol, and then removing the n-butyl alcohol.
Example 5
The graphene and sheet-like conductive material compounded low-zinc anticorrosive composition provided in the embodiment comprises the following components in percentage by mass based on a solid dry film: 20% of phenolic epoxy resin, 0.1% of high-purity carbon graphene powder, 4.4% of quartz powder coated with conductive aluminum-doped tin dioxide, 35% of zinc powder, 35% of spherical ceramic powder, 0.5% of modified polysiloxane carboxylic acid polymer and 15% of modified phenolic aldehyde amine curing agent.
The preparation method of the low-zinc anticorrosive composition comprises the following steps: uniformly mixing the phenolic epoxy resin, the high-purity carbon graphene powder, the quartz powder with the surface coated with the conductive aluminum-doped tin dioxide, the zinc powder, the spherical ceramic powder, the modified polysiloxane carboxylic acid polymer, the modified phenol aldehyde amine curing agent and the solvent isobutanol according to the proportion, and then removing the isobutanol to obtain the graphene and flaky conductive material composite low-zinc anticorrosive composition.
Example 6
The graphene and sheet-like conductive material compounded low-zinc anticorrosive composition provided in the embodiment comprises the following components in percentage by mass based on a solid dry film: 10% of phenolic epoxy resin, 1% of high-purity carbon graphene powder, 10% of glass flakes of tin dioxide with conductive aluminum doped on the surface, 40% of zinc powder, 35% of spherical silicon micropowder, 2% of organic bentonite and 2% of aromatic polyamine curing agent.
The preparation method of the low-zinc anticorrosive composition comprises the following steps: uniformly mixing the phenolic epoxy resin, the high-purity carbon graphene powder, the glass flake with the surface coated with the conductive aluminum-doped tin dioxide, the zinc powder, the spherical silicon micropowder, the organic bentonite, the aromatic polyamine curing agent and the solvent benzyl alcohol according to the proportion, and then removing the benzyl alcohol to obtain the low-zinc anticorrosive composition compounded by the graphene and the flaky conductive material.
The specific procedures for the above examples 4-6 are essentially the same as in example 1.
Test example 1
Test panels were prepared according to HG/T3668-2009 and the component a composite obtained according to the above preparation process was coated. The component A and the component B are prepared according to the following steps of 90: 10 by weight ratio, and then sprayed onto a carbon steel plate (size 150x70x3mm) sanded to a surface roughness SA2.5, with a dry film thickness of 90 ± 10 microns. Salt spray test sample plates coated with the coatings of examples 1-3 and comparative examples 1-5 were subjected to corrosion testing in accordance with GB/T1771-2007. The salt spray tested samples were tested as described in HG/T3668-2009. If the unidirectional propagation of the scratches of the paint film exceeds 2.0mm, blistering, rusting, cracking or peeling occur at the positions without scratches, and the paint film is judged to be invalid. Otherwise, the coating is effective. The test results of the neutral salt spray corrosion are shown in table 2.
Table 2 test results of neutral salt spray corrosion
Test example 2
The representative anticorrosive compositions of examples and comparative examples (such as comparative examples 1-3 and examples 2-3) are coated on a 150x70x3mm carbon steel plate to test the volume resistivity of the coating, so as to characterize the conductivity of the coating film. The conductivity is opposite to the resistivityThe relationship of the ratio. The national military standard GJB3007-97 static standard defines the antistatic material, wherein the volume resistivity of the electrostatic dissipative material is 1x104-1x1011Cm. the volume resistivity of the graphene-containing, conductive silicate filler-containing or mixed two compositions in different stages of salt spray test is in this range, which meets the requirements of making static dissipative materials, and the test results are shown in table 3.
TABLE 3 bulk resistivity (Ω. cm) of the coating film before and during the salt spray test
The results of the various tests on the anticorrosive compositions of the above-mentioned control examples and examples are explained in detail below according to tables 2 and 3:
the formulation of the anticorrosive composition of comparative example 1 was high-purity graphene, which contained no flaky conductive inorganic silicate filler, no blistering and no peeling off of the panel surface, flow rust at the scratch, pitting rust at 1500 hours after the salt spray test, and salt spray resistance of 1500 hours.
The corrosion inhibiting compositions of examples 1, 2 and 3, which contain high purity graphene and a platelet-shaped conductive silicate filler, did not foam or flake off during the salt spray test for up to 3000 hours, and the scratch remained substantially free of tarnishing, although the three examples used different amounts of zinc powder, which was superior to the other controls. The volume resistivity value was also lower than that of the other comparative examples. The combination of the two components shows the optimal anticorrosion effect, and the protective effect of the coating is still effective when the salt spray lasts for 3000 hours.
The anticorrosive composition of comparative example 2, which contained the conductive silicate filler in a flake form but no graphene, was observed to have much flow rust at the scratch at an early stage of the salt spray test, and corrosion protection failed at 1500 hours of the salt spray test.
The corrosion inhibiting composition of comparative example 3 was graphene-free, free of flaky conductive silicate filler, and the zinc powder content was the standard for conventional zinc rich primers. In 1500 hours of salt spray, the unilateral scratch is expanded to 1.0 mm. And when the salt spray lasts 3000 hours, the single-side scratch expansion corrosion is larger than 2.0mm, and the corrosion protection is invalid.
Comparative examples 4 and 5 are high-purity carbon graphene prepared by using redox method instead of the mechanical method of examples 2 and 3. The other compositions and proportions are kept unchanged. But both composition coated panels showed a uniform distribution of bubbles at the non-scratch sites early in the salt spray test. Therefore, the two comparative examples lose the protective effect in 720 hours. The graphene is oxidized and reduced by the method of the SP2And (3) carrying out strong acid oxidation on the hybridized graphene to enable the surface of the graphene to have functional groups such as carboxyl, hydroxyl and the like. Thereby becoming graphene oxide. These oxygen-containing groups, carboxyl and hydroxyl, are hydrophilic and can absorb moisture and electrolyte liquid during corrosion, so that bubbles are formed in the coating and the substrate, and the material cannot provide corrosion resistance in design.
The inventors also tested various properties of the anticorrosive compositions obtained in examples 4 to 6 and the formed anticorrosive coatings, and the test results thereof were substantially identical to those of the anticorrosive compositions prepared in examples 1 to 3. Therefore, the verification results of the above examples and comparative examples show that the claimed protection is a high-purity carbon-containing graphene, which is added with a sheet-like conductive silicate filler to an anticorrosive composition containing zinc powder, and shows more excellent protection effect than that of graphene added alone or by a redox method, and also provides effective protection for carbon steel in 3000 hours of salt spray, and the compositions can be used in a severe corrosive environment such as C5, and have volume resistivity lower than 1x1011Omega cm, can also be used for leading the application scene of static.
The aspects, embodiments, features and examples of the present invention should be considered as illustrative in all respects and not intended to be limiting of the invention, the scope of which is defined only by the claims. Other embodiments, modifications, and uses will be apparent to those skilled in the art without departing from the spirit and scope of the claimed invention.
The use of headings and chapters in this disclosure is not meant to limit the disclosure; each section may apply to any aspect, embodiment, or feature of the disclosure.
Throughout this specification, where a composition is described as having, containing, or comprising specific components or where a process is described as having, containing, or comprising specific process steps, it is contemplated that the composition of the present teachings also consist essentially of, or consist of, the recited components, and the process of the present teachings also consist essentially of, or consist of, the recited process steps.
Unless specifically stated otherwise, use of the terms "comprising", "including", "having" or "having" is generally to be understood as open-ended and not limiting.
It should be understood that the order of steps or the order in which particular actions are performed is not critical, so long as the teachings of the invention remain operable. Further, two or more steps or actions may be performed simultaneously.
In addition, the inventors of the present invention have also made experiments with other materials, process operations, and process conditions described in the present specification with reference to the above examples, and have obtained preferable results.
While the invention has been described with reference to illustrative embodiments, it will be understood by those skilled in the art that various other changes, omissions and/or additions may be made and substantial equivalents may be substituted for elements thereof without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed for carrying out this invention, but that the invention will include all embodiments falling within the scope of the appended claims. Moreover, unless specifically stated any use of the terms first, second, etc. do not denote any order or importance, but rather the terms first, second, etc. are used to distinguish one element from another.
Claims (16)
1. The graphene and sheet-shaped conductive material compounded low-zinc anticorrosive composition is characterized by comprising the following components in percentage by mass based on a solid dry film: 10-30% of a resin matrix system, 0.1-2% of a high-purity carbon graphene material, 2-10% of a sheet conductive silicate material, 25-70% of zinc particles, 2-35% of a functional filler and 0.5-3% of an auxiliary agent; the high-purity carbon graphene material is a graphene material which is obtained by mechanical intercalation separation, contains more than 90wt% of carbon and has 1-10 layers; the sheet diameter of the high-purity carbon graphene material is less than 10 microns; the sheet conductive silicate material is selected from any one or the combination of more than two of mica powder with surface coated with conductive antimony-doped and/or aluminum-doped stannic oxide, quartz powder with surface coated with conductive antimony-doped and/or aluminum-doped stannic oxide and glass flakes with surface coated with conductive antimony-doped and/or aluminum-doped stannic oxide; the sheet diameter of the sheet-shaped conductive silicate material is 10-30 mu m; the zinc particles are zinc powder with the metal zinc content of 90-99 wt%, the shape of the zinc powder is selected from spherical or flaky, and the particle size of the zinc powder is 300-1000 meshes.
2. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 1, characterized in that: the graphene material is in a solid powder state or graphene dispersion slurry.
3. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 1, characterized in that: the resin matrix system is selected from a water-based epoxy resin system, a solvent-free epoxy resin system, a water-based inorganic silicate system or a solvent-based inorganic silicate system.
4. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 3, characterized in that: the epoxy resin contained in the resin matrix system is selected from any one or the combination of more than two of bisphenol A epoxy resin, bisphenol F epoxy resin and novolac epoxy resin.
5. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 3, characterized in that: the resin matrix system also comprises a curing agent, wherein the curing agent is selected from any one or the combination of more than two of aliphatic polyamine curing agents, aromatic polyamine curing agents, polyamide curing agents, modified phenolic aldehyde amine curing agents and tertiary amine curing agents.
6. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 5, characterized in that: the content of the curing agent in the low-zinc anticorrosive composition is 2-15 wt%.
7. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 1, characterized in that: the low-zinc anticorrosive composition comprises 30-60 wt% of zinc particles.
8. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 7, characterized in that: the zinc particles are made of zinc powder with the metal zinc content of 95-99 wt%.
9. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 8, characterized in that: the particle size of the zinc powder is 325-600 meshes.
10. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 1, characterized in that: the shape of the functional filler is spherical or irregular.
11. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 10, characterized in that: the functional filler is spherical SiO2Any one of spherical ceramic powder, spherical silicon micropowder and spherical high polymer microbeadsOne or a combination of two or more.
12. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 1, characterized in that: the auxiliary agent is selected from a thickening agent and/or a wetting and dispersing agent.
13. The graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to claim 12, characterized in that: the thickening agent is selected from any one or the combination of two of organic bentonite and polyamide wax, and the wetting and dispersing agent is selected from any one or the combination of two of unsaturated polybasic amide and modified polysiloxane carboxylic acid polymer.
14. An anti-corrosion system comprising a primer, an intermediate coat and a top coat, characterized in that: the primer is selected from the low-zinc anticorrosion composition compounded by the graphene and the sheet-shaped conductive material according to any one of claims 1 to 13; the intermediate paint or the finish paint takes any one or the combination of more than two of epoxy resin, phenolic resin, polyurethane, polyurea, polyacrylate and fluorocarbon resin as a matrix.
15. Use of the graphene and sheet-like conductive material composited low-zinc anticorrosive composition according to any one of claims 1 to 13 or the anticorrosive system according to claim 14 in the field of anticorrosion, electric conduction or antistatic of a surface of a substrate, which is a steel material.
16. A method of preserving a surface of a substrate, comprising:
applying the graphene and sheet-shaped conductive material composite low-zinc anticorrosive composition according to any one of claims 1 to 13 to a surface of a substrate to form an anticorrosive coating.
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268196A (en) * | 2011-06-03 | 2011-12-07 | 杭州弗沃德精细化工有限公司 | Preparation method of conductive powder with antimony-doped tin oxide (ATO) coated transparent sheet core material |
| CN103319919A (en) * | 2013-04-23 | 2013-09-25 | 宁波墨西科技有限公司 | Mica and graphene co-modified inorganic coating material and use method thereof |
| CN104387911A (en) * | 2014-12-01 | 2015-03-04 | 湖南东博墨烯科技有限公司 | Graphene-based nanometer zero-valent iron coating and preparation method thereof |
| CN105623473A (en) * | 2016-03-25 | 2016-06-01 | 信和新材料股份有限公司 | Zinc-containing graphene anti-corrosive primer based on graphene dispersoid |
| CN106905819A (en) * | 2017-03-31 | 2017-06-30 | 哈尔滨工业大学（威海） | A kind of aqueous epoxide resin paint |
| CN107201071A (en) * | 2016-05-20 | 2017-09-26 | 南京长江涂料有限公司 | A kind of graphene sheet Conductive mica oil tank static electricity conductive anticorrosive paint and preparation method thereof |
| CN108070310A (en) * | 2017-12-10 | 2018-05-25 | 中海油常州涂料化工研究院有限公司 | A kind of graphene is modified zinc powder anti-corrosion primer and preparation method thereof |
| CN108329793A (en) * | 2017-12-10 | 2018-07-27 | 中海油常州涂料化工研究院有限公司 | A kind of graphene is modified rust resisting pigment anti-corrosion primer and preparation method thereof |
| KR101937975B1 (en) * | 2018-09-28 | 2019-01-11 | 한승호 | Paint composition containing graphene oxide for preventing corrosion of an iron structure and improving water repellency, corrosion proof and long-term duability of a concrete structure and process for forming a coating layer containing graphene oxide using the same |
| CN109233565A (en) * | 2018-08-22 | 2019-01-18 | 潍坊鼎盛化学工业有限公司 | A kind of heavy antisepsis graphene modified epoxy zinc-rich paint and preparation method thereof |
| CN109608994A (en) * | 2018-12-27 | 2019-04-12 | 石家庄市油漆厂 | Graphene anticorrosive paint and preparation method thereof applied to marine settings |
| CN109971313A (en) * | 2019-04-16 | 2019-07-05 | 江苏碳谷二维世界科技有限公司 | A kind of carbon nanomaterial modified epoxy zinc rich primer and preparation method thereof |
| CN110229545A (en) * | 2019-06-13 | 2019-09-13 | 浙江安吉朝辉新材料有限公司 | A kind of aqueous inorganic zinc silicate coating and its production technology |
| CN110804388A (en) * | 2019-10-11 | 2020-02-18 | 中航百慕新材料技术工程股份有限公司 | Inorganic alkene zinc coating and preparation method and application thereof |
-
2020
- 2020-03-06 CN CN202010155006.1A patent/CN111205738B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102268196A (en) * | 2011-06-03 | 2011-12-07 | 杭州弗沃德精细化工有限公司 | Preparation method of conductive powder with antimony-doped tin oxide (ATO) coated transparent sheet core material |
| CN103319919A (en) * | 2013-04-23 | 2013-09-25 | 宁波墨西科技有限公司 | Mica and graphene co-modified inorganic coating material and use method thereof |
| CN104387911A (en) * | 2014-12-01 | 2015-03-04 | 湖南东博墨烯科技有限公司 | Graphene-based nanometer zero-valent iron coating and preparation method thereof |
| CN105623473A (en) * | 2016-03-25 | 2016-06-01 | 信和新材料股份有限公司 | Zinc-containing graphene anti-corrosive primer based on graphene dispersoid |
| CN107201071A (en) * | 2016-05-20 | 2017-09-26 | 南京长江涂料有限公司 | A kind of graphene sheet Conductive mica oil tank static electricity conductive anticorrosive paint and preparation method thereof |
| CN106905819A (en) * | 2017-03-31 | 2017-06-30 | 哈尔滨工业大学（威海） | A kind of aqueous epoxide resin paint |
| CN108070310A (en) * | 2017-12-10 | 2018-05-25 | 中海油常州涂料化工研究院有限公司 | A kind of graphene is modified zinc powder anti-corrosion primer and preparation method thereof |
| CN108329793A (en) * | 2017-12-10 | 2018-07-27 | 中海油常州涂料化工研究院有限公司 | A kind of graphene is modified rust resisting pigment anti-corrosion primer and preparation method thereof |
| CN109233565A (en) * | 2018-08-22 | 2019-01-18 | 潍坊鼎盛化学工业有限公司 | A kind of heavy antisepsis graphene modified epoxy zinc-rich paint and preparation method thereof |
| KR101937975B1 (en) * | 2018-09-28 | 2019-01-11 | 한승호 | Paint composition containing graphene oxide for preventing corrosion of an iron structure and improving water repellency, corrosion proof and long-term duability of a concrete structure and process for forming a coating layer containing graphene oxide using the same |
| CN109608994A (en) * | 2018-12-27 | 2019-04-12 | 石家庄市油漆厂 | Graphene anticorrosive paint and preparation method thereof applied to marine settings |
| CN109971313A (en) * | 2019-04-16 | 2019-07-05 | 江苏碳谷二维世界科技有限公司 | A kind of carbon nanomaterial modified epoxy zinc rich primer and preparation method thereof |
| CN110229545A (en) * | 2019-06-13 | 2019-09-13 | 浙江安吉朝辉新材料有限公司 | A kind of aqueous inorganic zinc silicate coating and its production technology |
| CN110804388A (en) * | 2019-10-11 | 2020-02-18 | 中航百慕新材料技术工程股份有限公司 | Inorganic alkene zinc coating and preparation method and application thereof |
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