106 results about "Phenolic amine" patented technology

The application discloses a kind of ship super-long anticorrosion special nano powder coating, preparation method and application, belong to ship heavy anticorrosion material technical field.The preparation method of the ship super-long anticorrosion special nano powder coating is as follows: epoxy resin, graphene modified epoxy resin, core-shell structure ZnO@SiO2, modified 2,5-dimercapto-1,3,4-thiadiazole, borosilicate glass powder, flaky boron nitride, silane coupling agent modified silica, phenolic amine curing agent, 2-ethyl-4-methylimidazole, fumed silica, defoaming agent, ultraviolet absorber, high-temperature pigment are put into stirrer and stirred for 20-30min, then melt extrusion is carried out through double screw extruder, the extrusion temperature is 90-110 DEG C, grinds and sieves, and the ship super-long anticorrosion special nano powder coating is obtained.The coating prepared by the application has good anticorrosion performance and can be applied in the field of ship metal surface corrosion protection.

The invention discloses a polyurethane modified epoxy resin adhesive as well as a preparation method and application thereof, and the polyurethane modified epoxy resin adhesive is prepared from the following components in parts by mass: 7-10 parts of E51 type bisphenol A diglycidyl ether, 3.5 parts of a phenolic aldehyde amine T31 curing agent and 1-3 parts of synthetic polyurethane, the synthetic polyurethane is prepared from polyether triol, polyether amine, isophorone diisocyanate and glycerol carbonate, and a blending system of the synthetic polyurethane and bisphenol A diglycidyl ether is adopted to be subjected to covalent crosslinking with phenolic aldehyde amine T31, so that the adhesive has high toughness and strength guarantee; the synthetic polyurethane prepared by the method is obtained through simple, green and efficient solvent-free synthesis, and the synthesized product has certain fluidity at room temperature, so that the subsequent stirring preparation process of an adhesive is facilitated. And a solvent-free synthesis method is adopted, so that the use of a toxic organic solvent in the traditional polyurethane synthesis process is avoided, and the synthesis process is greener.

The invention relates to the technical field of coatings, in particular to a corrosion-resistant coating material and a preparation method thereof. The corrosion-resistant coating material comprises the following components in parts by mass: 80-100 parts of epoxy resin, 5-20 parts of a modified phenolic aldehyde amine curing agent, 2-5 parts of a waterproof agent, 5-10 parts of a corrosion inhibitor and 40-55 parts of a lubricant. The modified phenolic aldehyde amine curing agent is obtained by carrying out Mannich reaction on phenol, thymol, aliphatic polyamine and formaldehyde. The phenol provides a rigid benzene ring structure, and endows a cured product with good heat resistance and chemical resistance. Thymol improves the flexibility and adhesive force of the cured product and enhances the hydrophobicity of the cured product at the same time. The epoxy resin and the modified phenolic aldehyde amine curing agent are polymerized, the waterproof agent, the corrosion inhibitor and the lubricant are wrapped, and the obtained coating material has good adhesive force and corrosion resistance.

The invention discloses a quick-curing high-temperature-resistant anticorrosive coating for two-component packaging and a preparation method of the quick-curing high-temperature-resistant anticorrosive coating. The component A of the coating is composed of novolac epoxy resin, epoxy resin, a reactive diluent, an auxiliary agent, an anti-rust pigment, a filler, aluminum powder and a solvent; and the component B consists of phenolic aldehyde amine, alicyclic amine and a solvent. Compared with a traditional phenolic epoxy coating, the product has the advantages of being high in single-time film forming thickness, rapid in curing, resistant to abrasion, high in thermal stability, resistant to cold and hot impact, resistant to corrosion and the like.

The invention relates to the technical field of functional coatings, in particular to a graphene reinforced heavy-duty epoxy coating for a marine environment. The invention discloses a graphene-based epoxy resin coating which is prepared from the following raw materials in parts by weight: 60-80 parts of bisphenol A epoxy resin, 5-10 parts of aminated graphene-carbon nanotube composite powder, 3-6 parts of zinc-aluminum-cerium ternary composite phosphate, 3-6 parts of nano boron nitride / silicon dioxide core-shell particles, 15-25 parts of a polyamide-epoxy curing agent, 1-3 parts of a silane coupling agent KH-560 and 5-8 parts of cashew nut shell oil modified phenolic aldehyde amine. The anti-rust paint is prepared from the following components in parts by weight: 0.5-2 parts of carboxylated graphene quantum dots, 2-4 parts of organic montmorillonite, 0.1-0.5 part of a fluorocarbon surfactant, 8-15 parts of a composite anti-rust pigment and 10-20 parts of an organic solvent. The coating is excellent in corrosion resistance, capable of resisting marine corrosion for a long time, resistant to high temperature and resistant to cathodic disbonding, has the functions of aging tracing and biological adhesion resistance, is convenient to construct and stable in performance, and provides reliable protection for ocean engineering.

The invention discloses steel bridge deck pavement modified resin concrete and a pavement structure thereof, and belongs to the technical field of concrete preparation. The concrete is composed of a modified resin cementing material and aggregate, the modified resin cementing material consists of a main agent, a curing agent and an auxiliary agent; the main agent is modified bisphenol epoxy resin; the curing agent consists of a polyether amine curing agent, a modified phenolic aldehyde amine curing agent, an alicyclic amine curing agent, a curing accelerator and nano silicon dioxide; the aggregate is a compound of dried stone, filler, fiber and elastic particles; the auxiliary agent is composed of a defoaming agent, a flatting agent and an ultraviolet light absorber; the mass ratio of the main agent to the curing agent to the auxiliary agent is (50-110): (40-100): (1-3), and the mass of the modified resin cementing material accounts for 6-18% of the mass of the aggregate. The modified resin concrete is high in compressive strength and excellent in fatigue performance, and compared with common concrete, the modified resin concrete has higher strength and toughness and can bear larger load and impact force.

The invention discloses a lignin-based epoxy anticorrosive paint and a preparation method thereof. The anticorrosive paint is prepared by mixing a lignin-based epoxy anticorrosive paint component, a lignin-based phenolic amine curing agent and a diluent. According to the lignin-based epoxy anticorrosive paint disclosed by the invention, on one hand, a lignin epoxy resin acetylation modification method based on lipase is introduced, and the content of hydrophilic groups is reduced, so that formation of a compact lignin cross-linked network structure is promoted, and the barrier ability, heat resistance and aging resistance of an anticorrosive coating on a chemical medium are improved on the resin level; on the other hand, lignin and furfural are respectively used for partially replacing phenol and paraformaldehyde to prepare a lignin-based phenolic aldehyde amine curing agent with high chemical inertness, so that the protection effect of a coating in an extreme corrosion environment and the adhesive force to a metal base material are improved on the curing agent level. The lignin-based epoxy anticorrosive paint prepared by the invention has good corrosion resistance, aging resistance, thixotropy and adhesive force.

The invention relates to a preparation method of a high-viscosity epoxy midcoat curing agent, which mainly comprises the following steps: synthesizing phenolic aldehyde amine intermediates 1 and 2, modifying with epoxy resin E44 and cardanol, and finally adding a functional auxiliary agent for compounding. The paint has the characteristics of high viscosity, rapid curing, high hardness, flat surface and adjustable color and color retention, the raw material cost is remarkably reduced, the environmental protection requirement is met, the environmental pollution is avoided, and the resource utilization efficiency is improved; by optimizing a formula and a process, the problems that a traditional polyamide curing agent is low in curing speed, the surface of a phenolic amine curing agent absorbs moisture and becomes white and oil, and an acid curing agent is subjected to surface shrinkage, is prone to yellowing and is poor in adhesive force are solved, the surface drying time of a final product is 4-6 hours, the hard drying time is 12-24 hours, the shore hardness reaches 80 or above, and all properties reach the national standard; the epoxy floor is suitable for the field of high-strength and wear-resistant epoxy floors, and has both environmental protection and economic benefits.

The utility model discloses an anti-radiation high and low temperature vacuum motor, and particularly relates to the field of high and low temperature vacuum motors, the anti-radiation high and low temperature vacuum motor comprises a high and low temperature vacuum motor shell, a stator, a rotor and a rotating shaft, the stator is installed on the side wall of the inner cavity of the high and low temperature vacuum motor shell, and the rotating shaft is transversely arranged at the center of the inner cavity of the high and low temperature vacuum motor shell. A rotor is arranged on the outer diameter surface of the rotating shaft, a bearing is arranged on the contact face of the rotating shaft and the high-low temperature vacuum motor shell, and a sealing assembly is arranged on one side of the bearing. A high-low temperature vacuum motor is generally applied to fields with extremely strict environmental requirements, such as space flight and aviation and nuclear industry. Through the radiation-resistant ceramic layer, the lead-boron polyethylene plate, the nickel-based alloy layer and the modified phenolic aldehyde amine epoxy anticorrosive coating in the radiation-resistant layer in the high-low temperature vacuum motor shell, the effects of preventing the internal structure of the motor from being damaged and preventing the performance from being reduced and even losing efficacy are achieved, and through the structure, high-energy particles and radiation are prevented from penetrating through the motor shell to damage the interior of the motor. And the effect of preventing radiation is effectively achieved.

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 invention relates to the field of encapsulating material preparation, and particularly discloses a high-performance electronic encapsulating material and a preparation method thereof. The high-performance electronic encapsulating material is prepared from the following raw materials in parts by weight: 10-12 parts of modified epoxy resin, 6-8 parts of polymethylphenylsiloxane, 1-3 parts of a phenolic aldehyde amine curing agent, 2-4 parts of spherical silicon dioxide, 0.5-1 part of a silane coupling agent, 3-5 parts of silicalite, 5-7 parts of hexagonal boron nitride, 0.5-1 part of a curing accelerator and 2-4 parts of propylene glycol monomethyl ether. The composition disclosed by the invention can be used for packaging electronic components and has the advantages of high temperature resistance and good heat-conducting property.

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 invention discloses an underwater construction and underwater curing anticorrosive coating which comprises a component A and a component B. The component A comprises the following components in parts by mass: 65-85 parts of epoxy resin, 20-45 parts of an MS polymer, 10-30 parts of a diluent and 10-25 parts of an auxiliary agent; and the component B contains 90-105 parts of a modified phenolic aldehyde amine underwater curing agent, 1-3 parts of a curing accelerator and 1-5 parts of an organic tin catalyst. The MS polymer and the epoxy / modified phenolic aldehyde amine can be independently cross-linked to form a toughened full-interpenetrating network; the anticorrosive paint does not contain an organic solvent, is free of segregation, whitening and sagging when encountering water, has good tolerance to low-treatment surfaces, can be directly constructed underwater and cured underwater, is simple and efficient to apply, has the one-time film-forming thickness reaching the millimeter level, and is suitable for long-acting protection of large-scale maritime work facilities.

The present invention provides a curing agent, a two-component paint and coating and their application, belonging to the technical field of heavy-duty anti-corrosion coatings. The curing agent provided by the present invention is prepared from the following raw materials in parts by mass: 60 to 85 parts of a phenolic amine curing agent, 5 to 20 parts of diethylenetriamine and 5 to 20 parts of a hydroxymethyl urea compound. The present invention introduces a hydroxymethyl urea compound into the curing agent. The carbonyl group of the hydroxymethyl urea compound has a strong electron-withdrawing effect, resulting in the adjacent secondary amine group hardly participating in the epoxy curing reaction at room temperature. When hydrogen ions in the immersion environment penetrate into the interior of the coating, the hydrogen on the secondary amine group of the introduced hydroxymethyl urea compound will undergo a dehydration self-polymerization reaction with the hydroxymethyl group of the hydroxymethyl urea compound to form a macromolecular product, which effectively prevents the corrosion of hydrogen ions and fills the internal gaps of the coating to prevent further corrosion of the coating by water, hydrogen ions and salts, thereby achieving the purpose of acid corrosion resistance.

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 relates to the technical field of leaking stoppage materials, and particularly discloses an underwater fast-curing modified epoxy resin leaking stoppage material and a preparation method thereof. A polyether chain segment, a phenolic skeleton and a lignin skeleton are introduced through the lignin-based phenolic amine curing agent, and curing of epoxy resin is promoted through phenolic hydroxyl groups. In the traditional plugging technology, the modified epoxy resin for reinforcement is difficult to cure under the conditions of low temperature and flowing water, but the underwater fast-curing modified epoxy resin plugging material can overcome the adverse effect of the underwater environment on the curing effect, and a cured body with relatively good strength and flexibility can be obtained, so that the defects in the related technology are overcome, and the underwater fast-curing modified epoxy resin plugging material has good application prospects. And the leaking stoppage requirement is fully met.

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 provides a histone demethylase gene HOVUSG0811000 related to powdery mildew resistance and an application of the histone demethylase gene HOVUSG0811000 related to powdery mildew resistance. The nucleotide sequence of the HOVUSG0811000 is as shown in SEQ ID NO. 1 (sequence identifier number 1). It is found for the first time that HOVUSG0811000 improves the resistance of highland barley to powdery mildew by regulating phenol amine metabolism, and the HOVUSG0811000 has a good application prospect in construction of powdery mildew resistant plant varieties.

The invention relates to the technical field of coating preparation, in particular to a preparation method of kerosene-resistant antibacterial static conductive coating. The invention relates to a preparation method of a kerosene-resistant antibacterial static conductive coating. The kerosene-resistant antibacterial static conductive coating comprises a component A raw material and a component B raw material, the component A is prepared from the following raw materials: novolac epoxy resin, toughened modified resin, a reactive diluent, an auxiliary agent, polyhexamethylene biguanide, an anti-rust filler and a solvent; and the component B comprises the following raw materials: a toughening phenolic aldehyde amine curing agent and an alicyclic amine curing agent. The preparation method of the kerosene-resistant antibacterial static conductive coating has the advantages that the phenomena of bubbling and shedding are avoided, the coating has a protection effect and stable salt spray resistance and surface resistivity, and the static conductive requirement is met. The antibacterial rate is increased, the surface pollution is effectively inhibited, the green chemical industry standard is met, the adhesive force of the coating is improved, the wear resistance is improved, and high toughness can be kept in a low-temperature state.

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 invention relates to the technical field of paint, in particular to hollow glass bead high-solid epoxy intermediate paint and a preparation method thereof.The intermediate paint is composed of a component A and a component B. The component A comprises bisphenol A type epoxy resin, hollow glass beads subjected to surface treatment through a silane coupling agent, pigment filler and auxiliaries; the component B is a phenolic aldehyde amine curing agent, the component A and the component B are mixed for use according to the mass ratio of (7-9): 1, hollow glass beads with the specific gravity being 0.9-1.2 g / cm < 2 > are selected, the formula and the technology are optimized, the high-solid epoxy intermediate paint which is low in specific gravity, high in actual volume solid content, thick in paint film and low in cost is successfully prepared, the product can effectively reduce the number of construction paths, labor hours and cost are saved, and the cost is reduced. And meanwhile, the coating has excellent adhesive force, wear resistance and corrosion resistance, and is particularly suitable for the field of heavy-duty coating of steel structures such as bridges and the like.

The invention provides a full-temperature-range MS epoxy hybrid sealant and a preparation method thereof.The full-temperature-range MS epoxy hybrid sealant comprises a component A and a component B. The component A comprises a silane modified polyether polymer, an antioxidant, a first filler, a silane coupling agent and an epoxy curing agent, the silane modified polyether polymer comprises a 3-isocyanate propyl trimethoxy silane terminated polyether polymer, the first filler comprises hydrophobic fumed silica, the silane coupling agent comprises a secondary amino silane coupling agent, and the epoxy curing agent comprises a phenolic aldehyde amine curing agent; the component B comprises epoxy resin, a second filler, an accelerant and a catalyst, and the second filler comprises silica powder. The aging resistance and the elastic adhesive property of the adhesive can adapt to various severe environments such as long-term damp and heat resistance, high and low temperature impact resistance and water resistance and the requirement for high bonding strength, and the adhesive can be used for bonding and sealing in the manufacturing process of a new energy battery box.

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.

The present application discloses a heavy-duty anti-corrosion water-based epoxy glass flake anti-corrosion coating and a preparation method thereof, belonging to the field of anti-corrosion coatings. The coating is a two-component coating, wherein component A consists of a water-based phenolic epoxy emulsion, a water-based epoxy resin dispersion, glass flakes, an anti-rust pigment, titanium dioxide, a wetting dispersant, a film-forming aid, a silane coupling agent, a rheological aid, a substrate wetting agent, an anti-flash rust agent and water; and component B consists of a cardanol-modified phenolic amine water-based curing agent, a modified fatty amine water-based curing agent, a modified polyamide water-based curing agent, propylene glycol methyl ether and water. The coating has good construction properties and can dry itself at room temperature. It has the technical advantages of low VOC content, strong adhesion, excellent water resistance, boiling resistance, chemical resistance, excellent anti-corrosion performance, and a wide source of raw materials and a simple preparation process.