52 results about "Phenolic amine" patented technology

The invention discloses a modified microfiltration membrane for enriching biological particles and a preparation method and application thereof, and belongs to the technical field of biological separation.The preparation method of the modified microfiltration membrane comprises the following steps that a mixed cellulose ester microfiltration membrane is provided and subjected to alkali liquor activating treatment; placing the activated membrane in a weakly alkaline buffer solution for balancing; the preparation method comprises the following steps: in a weakly alkaline buffer solution, firstly contacting the surface of the membrane with a tannic acid solution to carry out a first reaction, and then directly adding a polyethyleneimine solution to carry out a second reaction under the condition of not replacing a system, so as to form a phenol-amine cross-linked network on the surface of the membrane in situ; sodium cyanoborohydride is continuously added for reduction stabilization treatment, and the modified microporous filter membrane is obtained. The modified microporous filter membrane prepared by modifying the microporous filter membrane with tannic acid and polyethyleneimine can realize one-step synchronous enrichment of all negatively charged targets, and the problems of target loss, efficiency loss and the like caused by a multi-step process are avoided from the source.

The present application belongs to the technical field of protective coating, and relates to a protective coating with reverse enhanced adhesion, a preparation method and application thereof. The protective coating is composed of component A and component B. The preparation raw materials of component A include water-based epoxy resin emulsion, cashew phenol glycidyl ether, wetting penetrant and defoaming agent. The preparation raw materials of component B include phenolic amine curing agent, alicyclic amine curing agent, dopamine, 2,4,6-tris(dimethylaminomethyl)phenol and pigment filler. The dopamine and the phenolic amine curing agent and the alicyclic amine curing agent are grafted under the action of 2,4,6-tris(dimethylaminomethyl)phenol to form a modified curing agent. The coating has low requirements for surface treatment, high adhesion in dry and humid environments and presents the characteristics of "reverse enhanced adhesion".

The application discloses a kind of organic silicon modified amine epoxy curing agent and preparation method thereof, the curing agent structure is composed of organic silicon, phenol, amine structure, preparation method includes the following steps: (1) the phenolic compound of double bond substituent group, catalyst and hydrogen-containing silicone oil are stirred and mixed uniformly under 50~75 ℃ nitrogen atmosphere, then heated to 65~90 ℃ and react for 4~6h, then solvent is removed by evaporation to obtain organic silicon modified phenol;(2) polyamine, organic silicon modified phenol, aldehyde compound and solvent are mixed uniformly, stirred uniformly under 50~75 ℃ nitrogen atmosphere, then refluxed and react for 2~4h, after solvent is removed by evaporation to obtain organic silicon modified amine epoxy curing agent.The application solves the problem that the bonding performance of epoxy adhesive is poor in humid or underwater environment, effectively improves the bonding performance of epoxy adhesive in seawater, freshwater and other underwater environment, and provides technical support for the bonding and sealing of moisture-resistant and heat-resistant electronic packaging, deep-sea underwater marine equipment and facilities.

The application relates to the technical field of paint, in particular to a two-component epoxy strong-acid-and-strong-base-resistant heavy-duty paint and a preparation method thereof, which comprises a main paint and a curing agent, the main paint contains a compounded system of bisphenol A epoxy resin and bisphenol F epoxy resin, a composite diluent, a functional filler synergized by flaky glass flake and spherical filler, a silane coupling agent and a special anti-rust pigment; the curing agent is compounded by polyamide, phenolic amine, modified alicyclic amine and modified aliphatic amine, the paint has high solid content and low VOC, has strong adhesion to various substrates, has a bottom-surface-combined function in a single coating layer, is resistant to strong acid, strong base and extreme corrosive environment, is simple to construct, is fast to cure and has a long service life.

The invention discloses an oil pipeline plugging material and a preparation method and application thereof.The plugging material comprises epoxy resin, a curing agent, a reinforcing phase, a toughening agent and corrosion-resistant filler, the curing agent is a mixture of phenolic aldehyde amine T31 and 1, 2-dimethylimidazole, the reinforcing phase is a mixture of basalt fibers and gradient-size walnut shell powder, and the toughening agent is a mixture of phenolic aldehyde amine T31 and 1, 2-dimethylimidazole. And the corrosion-resistant filler adopts paraffin coated metal powder. The plugging material is remarkable in plugging effect, free of manual limited space operation, high in safety, simple in technological process and low in requirement for construction equipment, leakage point plugging work can be completed only by preparing a solution, injecting the solution into a leakage point through a glue injection gun and cooling and curing the leakage point at the room temperature, and cost is relatively low.

The invention provides a biomass adhesive and a preparation method thereof. The biomass adhesive comprises an elastomer modified epoxy resin adhesive component A and a biomass phenolic amine curing agent component B, compared with a conventional modification method of directly adding an external plasticizer, the preparation method of the elastomer modified epoxy resin comprises the following steps: pre-polymerizing elastomers such as rubber and a functional monomer, and carrying out ring-opening reaction on the pre-polymerized elastomers and the functional monomer and epoxy groups in liquid glycidyl ether epoxy resin to generate a sea-island structure prepolymer molecule with a preliminary prototype; the modification method can significantly improve the toughness and impact resistance of the prepared epoxy resin adhesive. The elongation at break of the biomass adhesive is larger than 100%, the impact strength can reach 180 KJ / m < 2 >, and the biomass adhesive has the advantages of being high in bonding strength, resistant to corrosion, high in structural strength after curing and the like and has wide application prospects and market potential.

The invention discloses an epoxy splicing adhesive for a low-temperature wind power mixing tower. The epoxy splicing adhesive comprises a component A and a component B. The component A comprises bisphenol A type epoxy resin, bisphenol F type epoxy resin, a reactive diluent, a functional cross-linking agent, an epoxy coupling agent, a thixotropic agent, a flexibilizer, titanium dioxide and filler, and the functional cross-linking agent comprises an olefin cross-linking agent, a functional olefin monomer and a polymerization inhibitor. The component B comprises a phenolic aldehyde amine curing agent, an accelerant, a thixotropic agent, a cross-linking initiator, an amino coupling agent, carbon black and filler; the cross-linking initiator comprises a functional olefin monomer cross-linking agent, an initiator and an initiation accelerant. On one hand, starting from a resin system, the problems of high viscosity and easy crystallization of epoxy resin at low temperature are solved; on the other hand, starting from the design of a curing system, the reaction activity of the epoxy splicing adhesive in a subzero environment is improved, and the epoxy splicing adhesive has good early strength and low-temperature toughness and meets the requirements for fixing and bonding performance of the wind power mixed tower prefabricated duct piece at low temperature.

The invention discloses a gutta-percha modified second-order reaction epoxy adhesive and a preparation method thereof, the epoxy adhesive is composed of a component A and a component B. The component A comprises epoxidized gutta-percha, liquid epoxy resin, a reactive diluent, an auxiliary agent and the like, and the component B comprises a cardanol modified phenolic aldehyde amine curing agent, a modified polyamide curing agent, vegetable oleic acid, an auxiliary agent and the like. The gutta-percha modified second-order reaction epoxy adhesive disclosed by the invention has the characteristics of second-order reaction characteristic, high flexibility, high bonding strength, greenness, environment friendliness, reproducibility and the like, and is suitable for waterproof bonding between steel and concrete base planes of roads, bridges and the like and asphalt pavement layers.

The composition for a coating material according to one embodiment of the present disclosure includes an epoxy resin, a curing agent resin, and a diluting solvent, the curing agent resin including two or more types selected from the group consisting of a polyamide resin, an amide adduct resin, a phenolic amine, and a phenolic amide, and the total content of the diluting solvent in the composition for a coating material is 5 to 20 wt%.

This invention discloses a solvent-free epoxy drinking water paint, relating to the field of coating technology. By weight, it comprises the following components: 100 parts epoxy resin, 12-16 parts silane-modified quaternary ammonium salt, 8-12 parts reactive diluent, 15-20 parts pigments and fillers, 3-4 parts additives, 30-38 parts phenolic amine curing agent, 10-14 parts polyetheramine D230 curing agent, and 2-5 parts accelerator DMP-30. This invention exhibits good adhesion, improved antibacterial properties, and a long-lasting antibacterial effect.

This invention discloses a method for preparing a p-phenylenediamine-functionalized natural graphite-based graphene-like carbon antistatic epoxy self-leveling surface paint. The method includes the following steps: First, natural graphite-like graphene carbon is prepared. p-phenylenediamine is used to functionalize the surface of the graphene-like carbon, which serves as a conductive medium and dispersant. This carbon is then uniformly mixed with epoxy resin to form a p-phenylenediamine-functionalized graphene-like carbon material dispersion. Functional additives, pigments, and fillers are added, and the mixture is dispersed at high speed until homogeneous, completing component B. Then, phenolic amine epoxy curing agent component A is added, and the mixture undergoes reaction and curing to form a paint film, finally yielding the p-phenylenediamine-functionalized natural graphite-based graphene-like carbon antistatic epoxy self-leveling surface paint. The material prepared using this invention exhibits good antistatic properties and is simple to apply and inexpensive. It has broad application prospects in the coating of floors in workshops and venues requiring cleaning and antistatic properties, such as those in the pharmaceutical, electronics, instrumentation, textile, daily chemical, and food industries.

This invention relates to the field of anti-corrosion coating technology, and discloses a low-temperature and moisture-resistant graphene substrate-surface integrated coating and its preparation process. The coating consists of components A and B; component A contains 20-30 parts of mixed epoxy resin, 2-5 parts of reactive diluent, 0.5-2 parts of functionalized rGO powder, 0.2-0.6 parts of pyrene- or naphthalene-containing superdispersant, 5-12 parts of zinc phosphate, 8-15 parts of flake mica powder, and 3-8 parts of mixed solvent; component B is 40-55 parts of cashew phenolic amine curing agent; the grinding fineness of component A is 20-30 μm. The preparation process sequentially includes static pre-impregnation and aging, staged resin coating, high-flow-rate circulating sand milling, and application compounding. This invention utilizes a hydrophobic repulsion mechanism at the interface and a π-π non-covalent anchoring resistance mechanism to achieve single-coat thick coating application in environments of -5~5℃ and RH>85%, with a surface drying time of ≤12.5h, wet adhesion of ≥5.0MPa, and salt spray corrosion diffusion of ≤1.2mm after 2000h. It completely solves the problems of low-temperature flash corrosion, graphene flocculation, and multi-coat application, and is suitable for corrosion protection in marine engineering and polar facilities.

The application discloses a polypeptide or protein elution coating and a preparation method and application thereof, and belongs to the technical field of biological and medical materials. The method comprises the following steps: performing first incubation on a substrate by using a mixed solution to form an adhesive gel coating on the surface of the substrate, wherein the mixed solution is obtained by mixing polyphenol and polypeptide or protein in an acidic solution system; and performing second incubation on the adhesive gel coating by using a polyamine or polythiol alkaline solution, and in-situ chemical cross-linking of the adhesive gel coating is realized through phenolamine chemistry, so that a solid coating with a highly phenolamine network structure wrapping polypeptide or protein is obtained. The method realizes preparation of a functional polypeptide or protein elution coating with adjustable and controllable multi-scene application, the polypeptide or protein elution coating formed through the above method has the characteristics of wide-spectrum modification, is independent of the material quality of the substrate, and has the stability of chemical structure.

The invention relates to the technical field of high polymer materials, and discloses a fiberboard material and a preparation method thereof.The preparation method comprises the following steps that epoxy resin, an epoxy flame retardant and cardanol modified polyphenylene sulfide are added into a mixing machine and stirred for 30-40 min at the temperature of 40-50 DEG C, then esterified straw is added, stirring continues for 20-30 min, a premix is obtained, and the fiberboard material is obtained; adding a phenolic aldehyde amine curing agent into the premix, quickly stirring for 3-5 minutes, paving on a mold, performing hot pressing for 20-30 minutes at the pressure of 8-15 MPa and the temperature of 100-120 DEG C, molding, cooling and demolding to obtain the fiberboard material. The fiberboard material prepared by the invention has good water resistance, stain resistance, oil resistance and flame retardance.

The invention discloses a high-temperature-resistant pneumatic hose and a preparation method thereof, and relates to the technical field of hoses. Polyurethane is modified by adding sulfhydrylated silicon carbide, so that the wear resistance of polyurethane is enhanced. The epoxy coating is prepared by using the novolac epoxy resin, the talcum powder, the dodecafluoroheptyl methacrylate and the cashew nut oil modified phenol amine curing agent as main raw materials, the surface of the pneumatic hose is coated with the epoxy coating, a high-temperature-resistant coating is formed after curing, and the high-temperature-resistant performance of the pneumatic hose is improved. According to the invention, 3-mercaptopropyltrimethoxysilane is used for modifying silicon carbide, and at the moment, a mercapto group on the silicon carbide and dodecafluoroheptyl methacrylate in the epoxy coating can be subjected to a mercapto-olefin click reaction, so that the coating is more firmly attached to the surface of the pneumatic hose; therefore, the wear resistance and the high temperature resistance of the pneumatic hose are enhanced.

The invention relates to the technical field of powder coatings, in particular to a bio-based epoxy resin anticorrosive powder coating and a preparation method thereof. The problem that in the prior art, high bio-based content and corrosion resistance of a powder coating cannot be considered at the same time is solved. The powder coating is prepared from modified epoxy resin, rosin-based epoxy resin, a modified bio-based phenolic aldehyde amine curing agent and titanate modified composite filler, rigid-tough balance of the coating is realized through a long-chain structure of dimer acid and a rigid framework of rosin; the amino-terminated silicon oil modified curing agent is utilized to endow the surface of the coating with low surface energy hydrophobic property; graphene is loaded on biochar, and an in-situ grafting technology in a step-by-step temperature control extrusion process is combined, so that a compact anti-corrosion barrier is constructed; the preparation method solves the problems of high brittleness and poor water resistance of bio-based coatings, and is suitable for heavy-duty anticorrosion fields of pipelines, marine facilities and the like.

The present application relates to the technical field of additives for metalworking fluids, in particular a phenolamine additive, as well as its manufacturing process and application. The phenolamine additive comprises a compound of formula (1), a compound of formula (2), a compound of formula (3), a compound of formula (4), and a compound of formula (5). The present invention is characterized by good antimicrobial activity and high stability, and it does not produce precipitates or deposits when used in metalworking fluids.

The application relates to the field of high polymer materials and discloses a preparation method of a high-strength ultrahigh molecular weight polyethylene fiber composite material, which comprises the following steps: (1) pretreatment of ultrahigh molecular weight polyethylene fiber; (2) phenol amine co-deposition modification; (3) metal ion modification; (4) three-way weaving of the ultrahigh molecular weight polyethylene fiber; and (5) preparation of the composite material. The ultrahigh molecular weight polyethylene fiber is modified by using catechol and 1,6-hexanediamine for coating, and metal ions are combined with the fiber through coordination bond action, the composite material prepared by the method has good interfacial bonding strength between the ultrahigh molecular weight polyethylene fiber and the matrix material, and the composite material has excellent mechanical properties. In addition, the composite material also has excellent antibacterial property.

The application relates to the technical field of ship anticorrosive coating, and discloses a high-efficiency energy-saving ship section shell outfitting and coating integrated process, which comprises the following steps: preparing component A containing bisphenol A type epoxy resin and other raw materials; using acetylacetone to dynamically seal the phenolic hydroxyl group of cashew nut shell oil modified phenolic amine, adding ketimine and polyamide wax micro powder to prepare component B; mixing the two components in a high-pressure airless spraying machine, maintaining the pipeline working pressure at 15.0-20.0 MPa; spraying the mixed coating after the mixed coating flows through an inline heater and is heated to 43-47 DEG C, using pressure drop to cause adiabatic expansion, making acetylacetone flash vaporization to unseal the catalytic sites, and absorbing latent heat to reconstruct the thixotropic network. The application solves the problems of slow crosslinking and curing, easy water absorption and whitening of paint film in a low-temperature and high-humidity environment, and gel blocking in the pipeline of the spraying equipment, realizes the combination of long pot life in the equipment and rapid setting and curing of the film on the surface of the base material.

This invention relates to a low-temperature, fast-drying modified phenolic amine curing agent, its preparation method, and its application. The raw material components of this low-temperature, fast-drying modified phenolic amine curing agent consist of a phenol source, an amine source, an aldehyde source, a modifier, and a solvent. The phenol source includes cashew phenol and phenol; the amine source is selected from one or more of triethylenetetramine, diethylenetriamine, and isophorone diamine; the aldehyde source is formaldehyde solution; the modifier is a silane coupling agent; and the solvent is selected from one or more of xylene, n-butanol, and propylene glycol methyl ether. This low-temperature, fast-drying modified phenolic amine curing agent, its preparation method, and its application have the advantages of low-temperature, fast drying, promotion of nano-ceramic dispersion, and a wide applicable temperature range.

The invention belongs to the technical field of gene engineering, and particularly relates to an acyltransferase gene and application thereof. The invention provides an acyltransferase gene and application thereof. The nucleotide sequence of the acyltransferase gene HOVUSG0796800 is as shown in SEQ ID NO. 1 (sequence identifier number 1). Results of the invention show that the expression quantity of HOVUSG0796800 is significantly increased after a silicon fertilizer is applied, and the gene has significant positive correlation with the content of coumaroyl agmatine, the content of feruloyl tyramine, the content of feruloyl putrescine and the content of coumaroyl tyramine. In-vitro enzyme activity experiments prove that the gene can effectively regulate and control synthesis of the phenol amine substances. Therefore, the HOVUSG0796800 gene has an important function in plant phenol amine metabolism, and has a good application prospect in the aspects of enhancing crop stress resistance and improving plant quality.

The invention discloses a phenolic aldehyde amine epoxy curing agent synthesized based on paraformaldehyde and a preparation method of the phenolic aldehyde amine epoxy curing agent. The phenolic aldehyde amine epoxy curing agent is prepared from the following components in percentage by mass: 10-20% of low-molecular fatty amine, 15-30% of paraformaldehyde, 35-55% of monohydric phenol and 15-20% of organic alcohol. Paraformaldehyde (the content is greater than or equal to 92%) is used as a solid, is safe to store and transport and does not contain water, so that the yield of wastewater of a finished product is reduced. Performance detection shows that the cured product has the characteristics of quick drying and high hardness, has toughness and impact resistance similar to those of a polyamide curing agent, is also suitable for being used at low temperature in the north under a normal-temperature curing condition, has good curing performance, and is mainly suitable for epoxy floor coatings, building structural adhesives and the like.

The present application relates to the technical field of high polymer coating, and discloses an anti-adhesion steel formwork coating and a preparation method thereof, the coating is prepared by mixing and curing an A agent and a B agent; the A agent contains, in terms of weight parts, 100 parts of bisphenol A type liquid epoxy resin, 10-15 parts of long-chain aliphatic mono-epoxy active diluent, 5-8 parts of mixed solvent, 0.8-2.0 parts of zinc acetylacetone and 0.05-0.15 parts of copper acetylacetone; and the B agent is 45-64 parts of siloxane modified phenolic amine prepolymer. By covalently anchoring the siloxane chain segment in the crosslinked network, the loss of the anti-adhesion substance is avoided; the coordination steric hindrance effect of zinc ions is used to inhibit the initial reaction heat release, thereby prolonging the pot life; the long-chain aliphatic diluent constructs a hydrophobic shielding layer to block the penetration of strong alkali ions, thereby improving the saponification life; and the dynamic color change mechanism of the copper acetylacetone provides an intuitive indication for material mixing and dry state.

The invention relates to the technical field of demulsifiers, in particular to a low-temperature demulsifier for crude oil dehydration and a preparation method and application thereof. The demulsifying agent is prepared from the following components: a hyperbranched polyether modified dendritic phenol amine demulsifying agent, polyether modified polysiloxane, linear diol block polyether, tall oil fatty acid diethanolamide, diethylene glycol monobutyl ether, aromatic solvent oil S-150 and isopropanol. The preparation method comprises the following steps: adding the aromatic solvent oil S-150 and the isopropanol according to the proportion, and stirring for 10-20 minutes; then adding a hyperbranched polyether modified dendritic phenol amine demulsifier, heating and stirring, then cooling to room temperature, continuously adding linear diol block polyether, and stirring; finally, sequentially adding polyether modified polysiloxane, tall oil fatty acid diethanolamide and diethylene glycol monobutyl ether; and continuously stirring to obtain the crude oil dehydration low-temperature demulsifier. The crude oil low-temperature demulsifier prepared in the invention has good universality, and has a good demulsification effect on different crude oils at a low temperature.

The invention provides a high-toughness water-resistant epoxy dry-hanging adhesive as well as a preparation method and application thereof, and belongs to the technical field of dry-hanging adhesives. The high-toughness water-resistant epoxy dry hanging adhesive comprises a component A and a component B which are independently packaged, and the component A comprises epoxy resin, polyurethane modified epoxy resin, a stabilizer, an active diluent and a first filler; and the component B comprises the following components: a phenolic aldehyde amine curing agent, a hydrophobic curing agent, an accelerant, a flexibilizer, a non-active diluent, an adhesion promoter and a second filler. The high-toughness water-resistant epoxy dry-hanging adhesive provided by the invention is good in impact strength and high in bending elastic modulus, and has relatively high bonding performance under the condition of soaking in water or hot water, the impact strength can reach 14 KJ / m < 2 > or above, the bending elastic modulus reaches 5500 MPa or above, and after soaking treatment or hydrothermal treatment, the tensile strength and the compression-shear strength are basically the same as those before soaking.

The application discloses an isocyanate-modified phenolic amine curing agent and a preparation method and application thereof, and the preparation method comprises the following steps: synthesizing a phenolic amine curing agent; adding a fatty acid to perform an amidation reaction; and isocyanate modification. In the preparation process, the unreacted small-molecule amine in the system is removed by using the fatty acid reaction, and then isocyanate modification treatment is performed, so that the activity of the reaction after the isocyanate is added is effectively reduced, the reaction condition is more moderate and controllable, no gel or explosive polymerization phenomenon is generated, the prepared curing agent not only has a low-temperature rapid curing performance, but also effectively improves the tensile strength and elongation at break of the cured epoxy resin and the flexibility and impact strength of an epoxy resin paint film, and has excellent use performance and strong practicability.

The invention relates to the technical field of functional adsorption film materials and seawater resource utilization, in particular to a phenol-amine synergistic functional polyphenylenediamine adsorption material, a preparation method of the phenol-amine synergistic functional polyphenylenediamine adsorption material, an adsorption film and application of uranium extraction from seawater. Phenolic hydroxyl groups and amino groups are introduced into a formed polyphenylenediamine structure through a phenol-amine functional compound to construct various coordination active sites, so that the coordination capability of the material to uranyl ions is improved, and the adsorption capability of the adsorption material to uranyl ions is remarkably enhanced. And a dialdehyde compound is adopted as a cross-linking agent to carry out cross-linking treatment on the phenol-amine functional compound modified polyphenylenediamine material, so that a more stable cross-linked network is established between material particles and between polymeric chains. The obtained adsorption material or adsorption film has the advantages of being stable in structure, good in operation stability and high in uranium adsorption capacity, is applied to extraction of uranium from seawater, and can achieve excellent uranium adsorption capacity and high uranium selectivity.

The application discloses a kind of polyphenol-amine system construction controllable ordered mesoporous material and its preparation method and application.The mesoporous material of the application includes nitrogen-doped mesoporous carbon ball, and the nitrogen-doped mesoporous carbon ball is obtained by carbonizing treatment to mesoporous small ball;The nitrogen-doped mesoporous carbon ball includes skeleton structure, and the skeleton structure includes porous structure;The nitrogen-doped mesoporous carbon ball includes the following components: carbon, oxygen, optional nitrogen and / or sulfur.The mesoporous material of the application has similar activity with natural enzyme, and can be applied as biomimetic enzyme.The mesoporous material of the application has simple preparation process, mild condition, controllable cost, and has the potential of industrial production.

This invention discloses a total phenolic amine from bee pollen, its preparation method, and its application in alleviating zearalenone (ZEA) toxicity, belonging to the field of agricultural technology. The total phenolic amines extracted from bee pollen by this invention can reduce the bioaccumulation of ZEA and alleviate organ pathological damage; it can inhibit lipid peroxidation by activating the Nrf2 / GPX4 signaling pathway, upregulate BTB core protein, and restore the integrity of the barrier function; furthermore, TPP can regulate sex hormone balance, reverse the ZEA-induced decrease in testosterone levels and abnormal increase in estradiol, thereby comprehensively alleviating the toxic effects of ZEA.

The present application relates to the technical field of powder coating, in particular to a bio-based epoxy resin anticorrosive powder coating and a preparation method thereof.The present application overcomes the problem that high bio-based content and corrosion resistance cannot be considered in the prior art.The powder coating of the present application is composed of modified epoxy resin, rosin-based epoxy resin, modified bio-based phenolic amine curing agent and titanate modified composite filler;the long chain structure of dimer acid and the rigid skeleton of rosin are used to achieve the rigid and tough balance of the coating;the curing agent modified by amino-terminated silicone oil is used to endow the coating surface with low surface energy and hydrophobic characteristics;the biochar loaded graphene and the in-situ grafting technology in the step temperature control extrusion process are combined to build a dense anticorrosive barrier;the problem of large brittleness and poor water resistance of bio-based coating is solved, and the present application is suitable for heavy anti-corrosion fields such as pipelines and marine facilities.