1027 results about "Benzimidazole" patented technology

The invention belongs to the technical field of high-temperature-resistant coatings, and particularly relates to a core-shell polyimide-based high-temperature-resistant water-based coating and a preparation method thereof. Comprising the following components in percentage by mass: 35-38% of a core-shell emulsion; the core layer is polyimide resin; the transition layer is an organic silicon emulsion modified by 5, 6-dimethyl benzimidazole and a silane coupling agent KH-550; the shell layer is made of polyamide-imide resin; 28%-32% of a modified high-temperature filler; 6%-7.5% of a functional auxiliary agent; and the balance of deionized water. Through core-shell emulsion gradient design, multi-scale filler cooperation and a low-temperature gradient curing process, the high temperature resistance, the adhesive force and the environmental protection property of the coating are improved.

The invention discloses a dry-process high-temperature-resistant lithium battery diaphragm and a preparation method thereof, and relates to the technical field of lithium battery diaphragms. The specific preparation method comprises the following steps: activating and cross-linking polypropylene, polyimide, a PP-b-PI block copolymer and a cross-linking agent BIBP under the protection of nitrogen to prepare a polypropylene-polyimide matrix; after melting, adding a pre-sintered ZrO2-coated Al2O3 core-shell filler, hydroxylated boron nitride and zinc borate, and carrying out double-stage screw extrusion, ultrasonic orientation, nitrogen annealing and cold roller quenching to obtain a mixed melt; carrying out warm stretching and hot air circulation heat treatment to prepare a hard elastic crystal base film; carrying out stretching, thermal relaxation and thermal shaping to obtain a microporous base membrane; after slitting, plasma activation is carried out, epoxy silane and tetraethyl orthosilicate / polybenzimidazole aerogel precursors are sprayed, and a nano closed-pore coating is formed through pre-curing and heat shrinkage curing; and finally eliminating static electricity and rolling to obtain a finished product. The lithium battery diaphragm prepared by the invention is excellent in high temperature resistance and low in thermal shrinkage rate.

The invention relates to a process for recycling and regenerating a waste lithium iron phosphate positive electrode material by using a specific chelating agent. The method comprises the following steps: carrying out heat treatment on a waste lithium iron phosphate positive electrode material, putting separated waste lithium iron phosphate powder into a ball milling tank, adding organic acid and a chelating agent, and carrying out ball milling; after the ball milling is finished, adding hydrogen peroxide, uniformly stirring and mixing, adjusting the pH value to 2-3 by using nitric acid, and filtering to obtain a filter cake which is iron phosphate; adding saturated sodium carbonate into the filtrate, precipitating, and recovering lithium carbonate; putting the iron phosphate, the lithium carbonate, the iron source, the lithium source and the phosphorus source in the step S3 into a ball mill for ball milling, and performing high-temperature solid-phase sintering after ball milling to obtain a regenerated lithium iron phosphate material; the chelating agent disclosed by the invention is prepared from (9ci)-2-(2-propenyl)-1-cyclopentene-1-carboxylic acid, 2-mercaptobenzimidazole carboxylic acid, an ethylene boric anhydride pyridine complex and potassium persulfate. The regenerated lithium iron phosphate material prepared by the method has excellent electrochemical performance.

The invention belongs to the field of organic chemical materials, and relates to a benzimidazolyl deep calixarene cross-linked polymer as well as a preparation method and application thereof in iodine adsorption. According to the method, a chlorine foot in a benzimidazolyl calixarene synthesis technology with a chlorine substituted foot is replaced by an azide foot, and then an azide group and 1, 6-heptadiyne are subjected to a click reaction catalyzed by cuprous. And the insoluble benzimidazolyl deep calixarene cross-linked polymer NCCP-I is prepared in a relatively short reaction time and a relatively high yield. The NCCP-I is non-porous, is an amorphous compact particle with an irregular crystal structure, and has relatively high thermal stability. When the NCCP-I is used for adsorbing iodine vapor, the saturated adsorption capacity reaches 1.36 g.g <-1 >. The method is simple in synthesis path, good in reproducibility and good in stability, can be recycled, provides reliable guarantee for nuclear safety protection and environmental governance, and has great social value and economic value.

The invention relates to the technical field of high polymer material and polymer modification, in particular to modified asphalt based on nano material reinforcement and a preparation method, the modified asphalt comprises matrix asphalt subjected to molecular cutting and compounding, a nano titanium dioxide-graphene-carbon nano tube ternary composite material, zwitter-ion and silane synergistically modified nano montmorillonite, the rubber powder subjected to special treatment, the bio-based and traditional compound plasticizer and the 2-mercaptobenzimidazole and sulfur compound stabilizer are synergistically modified. The modified asphalt has the advantages of excellent performance, high-temperature stability, low-temperature crack resistance, strong aging resistance, efficient and environment-friendly preparation process, low energy consumption, short period and good nanometer material dispersion, and adopts the bio-based plasticizer to promote the green development of the asphalt industry.

The invention relates to environment-friendly hydrophobic ink and a preparation method thereof, and belongs to the technical field of water-based ink. A copolymerization modifier capable of being combined in a water-based polyacrylate emulsion in an initiation polymerization mode in the stage of preparing the modified water-based polyacrylate emulsion is prepared, and an o-hydroxy aromatic ketone structure in the copolymerization modifier can endow water-based ink with lasting ultraviolet absorption performance; the trifluoromethyl structure can reduce the surface energy of the water-based ink, and the benzimidazole ring structure can form stable coordinate bonds with metal ions, so that the bonding performance of the water-based ink and a metal substrate is enhanced; when the copolymerization modifier is used for modifying the water-based polyacrylate emulsion, the long-term performance, the hydrophobic and oil-resistant performance and the adhesion performance on the surface of a metal base material of the finished water-based ink can be effectively improved.

The invention provides a high-molecular adsorption material with high selectivity on platinum group metals as well as a preparation method and application of the high-molecular adsorption material, and belongs to the technical field of material science. Comprising the following steps: (1) preparing a methanol solution containing platinum group metal ions, and adding a functional monomer mixture and modified graphene oxide to form a pre-assembled compound; (2) adding a cross-linking agent and an initiator, removing oxygen, and polymerizing to obtain a polymer; and (3) grinding the polymer, eluting metal ions, washing to be neutral, and drying. The high-molecular adsorption material provided by the invention takes modified graphene oxide as a support body, template molecules and specific functional monomers (4-vinylpyridine and 2-mercaptobenzimidazole) are combined to form a pre-assembled compound, then a cross-linking agent and an initiator are added, recognition sites are fixed through cross-linking polymerization, and finally, the high-molecular adsorption material is obtained after the template molecules are eluted. The adsorbent is high in adsorption rate, capable of specifically adsorbing platinum group metal, good in stability and reproducibility and capable of being repeatedly used.

The invention relates to the technical field of layered composite fabrics, in particular to a bio-based antibacterial fiber fabric and a preparation method thereof. The preparation method comprises the following steps: carrying out a reaction on diisocyanate, polyether polyol, bio-based polyester polyol and hexamidine dihydroxyethyl sulfonate in N, N-dimethylacetamide, so as to obtain a polyurethane prepolymer solution; 2-(4-aminophenyl)-5-aminobenzimidazole and amino-modified nano-zinc oxide are sequentially added into the polyurethane prepolymer solution for a reaction, a prepared polyurethane spinning solution is subjected to dry spinning to prepare polyurethane fibers, and then the polyurethane fibers are sequentially spun into yarn and fabric; the bio-based nylon is subjected to melt spinning to obtain bio-based nylon fibers, and the bio-based nylon fibers are sequentially spun into yarns and fabrics; the bio-based antibacterial fiber fabric is prepared by taking a polyurethane fabric as an inner-layer fabric and taking a bio-based chinlon fabric as an outer-layer fabric, and the fabric is good in antibacterial performance and moisture absorption performance.

Provided herein are 6-carboxylic acids of benzimidazoles and 4-aza-, 5-aza-, and 7-aza-benzimidazoles as GLP-1R agonists, processes to make said compounds, and methods comprising administering said compounds to a mammal in need thereof.

The invention relates to the technical field of aramid fibers, in particular to a heterocyclic aramid fiber and a preparation method thereof.The preparation method comprises the steps that S1, p-phenylenediamine, benzimidazole diamine and terephthaloyl chloride are subjected to a polymerization reaction in an amide solvent, and a polymer stock solution is obtained; s2, the polymer stock solution is subjected to spinning through a spinning nozzle, coagulating bath forming, drafting bath, alkali washing, water bath, drying, hot drafting, oiling and winding into a barrel, and the heterocyclic aramid fiber is obtained. In the step S1, the polymerization reaction temperature is-10 DEG C to 0 DEG C. According to the heterocyclic aramid fiber prepared by the preparation method, the problems of broken filaments, doubled filaments, sticky filaments, broken filaments and the like are obviously improved, the mechanical property is improved, the irregularity is reduced, and the product quality is excellent. The tensile strength of the heterocyclic aramid fiber is 30 to 37 cN / dtex, the elongation at break of the heterocyclic aramid fiber is 3.0 to 4.0 percent, and the elastic modulus of the heterocyclic aramid fiber is 950 to 1150 cN / dtex.

The invention discloses a preparation method of a 3-micron ultrathin lithium battery copper foil. The preparation method comprises the following steps: preparing a copper sulfate electrolyte; a wetting agent, a brightening agent and a high resistance agent are added into the copper sulfate electrolyte, the high resistance agent is at least one of thiazolidinethione, polyethyleneimine, 2-mercaptobenzimidazole and ethylene thiourea, and a mixed additive is formed; polishing and grinding a cathode roller by adopting a flying wing wheel, and carrying out electrolytic treatment on the mixed additive through the polished and ground cathode roller to obtain a first-stage copper foil; and the first-stage copper foil is placed in a nitrogen furnace to be subjected to annealing treatment, and the 3-micron ultrathin lithium battery copper foil is obtained. The invention aims to solve the technical problems that in the prior art, edge tearing, foil breaking, warping, dark appearance oxidation and the like are prone to occurring in the production process of the ultrathin copper foil, the tensile strength and the ductility are difficult to consider at the same time, and stable mass production of the 3-micron copper foil is still difficult.

The invention relates to the field of solder materials, and provides a non-ferrous metal solder for low-temperature brazing and application, the solder is composed of carbon-coated copper nanorods, tin-bismuth alloy-coated silver nanoparticles, 2-mercaptobenzimidazole, rosin resin, an organic active agent, a dispersing agent, ionic liquid, hydroxyethyl cellulose, indium nitrate and citric acid. The silver particles are of a core-shell structure and are coated with tin-bismuth alloy layers, and continuous carbon layers are formed on the surfaces of the copper nanorods, so that the conductivity and the interface stability of the solder are effectively improved. The non-ferrous metal solder with excellent conductivity, low melting point and good wettability is prepared through step-by-step mixing, hot press molding and low-temperature heat treatment processes, and is suitable for electronic device packaging, power device connection and flexible circuit interconnection, and the defects of existing solder in the aspects of low-temperature welding and high conductivity are overcome.

The invention discloses a nanofiber functional dressing for wound healing of burns and scalds, and belongs to the technical field of wound repairing dressings. The dressing is prepared through double-layer electrostatic spinning and comprises a hydrophilic nanofiber layer and a hydrophobic nanofiber layer. The hydrophobic nanofiber layer is prepared by electrostatic spinning of an antibacterial composite modified material and isocyanate-terminated oligomeric lactic acid, and the antibacterial composite modified material is prepared by acylating chlorination of (9I)-2, 4, 8, 10-tetraoxaspiro [5.5] undecane-3, 9-dipropionic acid, reaction of the acylating chlorination product and N, N-bis (2-benzimidazole methyl) amine, and quaternization of benzyl chloride. The tetrooxaspiro rigid structure improves the thermal stability and inhibits the molecular chain from absorbing water and expanding; the quaternized benzimidazole group destroys cell membranes through positive charges, and can efficiently resist bacteria. An amido bond in the hydrophilic layer and a urea bond formed by the antibacterial material and an isocyanate group remarkably improve the liquid absorption capacity; the hydrophobic layer provides mechanical support and ductility; two layers of interfaces are fused through heat treatment, the overall tearing strength is improved, and the joint movement requirement is met.

The invention discloses a benzimidazolyl Gemini surfactant as well as preparation and application of the benzimidazolyl Gemini surfactant. The benzimidazolyl Gemini surfactant is a symmetric gemini type compound formed by a benzimidazole group, a styrene group, a sulfonate group and an alkyl chain with a proper length, and the compound has a better oil displacement effect. The surfactant can also reduce the surface tension of a solution in a dose-dependent manner, has relatively strong interfacial activity, excellent shear restorability and wettability, is beneficial to improving the oil recovery rate, and is suitable for multiple aspects such as an oil-soluble viscosity reducer, an oil-displacing agent and a microemulsion internal phase in tertiary oil recovery. The invention provides a method for preparing a surfactant by sulfonation and neutralization after styryl benzimidazole and alkyl diethylene oxide are subjected to ring-opening reaction to obtain a Gemini intermediate, and the synthetic process route has the characteristics of high product surface activity, excellent rheological property and simple synthetic method.

The invention discloses an anti-yellowing PVB (Polyvinyl Butyral) adhesive for laminated glass and a preparation method thereof, and relates to the technical field of adhesives. The yellowing-resistant PVB glue for the laminated glass has the advantages that the yellowing resistance is high; the modified PVB / nano silicon dioxide composite material is prepared from the following raw materials in parts by weight: 55 to 65 parts of modified PVB resin, 4 to 6 parts of modified nano silicon dioxide, 15 to 20 parts of dioctyl adipate, 0.5 to 1 part of a compound antioxidant, 0.3 to 0.8 part of an ultraviolet absorbent UV-327, 0.2 to 0.5 part of a silane coupling agent KH-560, 0.3 to 0.6 part of ethylene bis stearamide, 0.1 to 0.3 part of 2-benzimidazole methyl carbamate, 3 to 5 parts of tris (1-chloro-2-propyl) phosphate and 0.1 to 0.3 part of nano titanium dioxide. 5 to 8 parts of isopropanol; 0.8 to 1.2 parts of polycarbodiimide. The special modified PVB resin and the nano silicon dioxide are matched with the auxiliary agents such as the compound antioxidant, the anti-yellowing performance of the PVB glue for the laminated glass is remarkably improved through precise process preparation, the components have a synergistic effect, the process is controllable, the product performance is stable, and the cohesiveness is good.

The invention belongs to the technical field of chemical energy, and particularly relates to an ultralow-potential-difference zinc-air battery containing a copper cluster axial coordination iron monatomic catalyst. Benzimidazole and 2-methylimidazole are synthesized into ZIF-7-NH2, the ZIF-7-NH2 reacts with Fe (NO3) 3.9 H2O and Cu (OAc) 2. H2O in an ion exchange mode to obtain FeCu-ZIF-7-NH2, a urea calcination product g-C3N4 is added, stirring is carried out to obtain Fe-ZIF-7-NH2 / g-C3N4, finally, sintering is carried out under argon to obtain g-SAFe-Cin, the ORR activity and the OER activity of the catalyst are remarkably enhanced by constructing the copper cluster axial coordination iron monatomic catalyst, and the catalyst has the advantages of being high in catalytic activity, high in catalytic activity and high in catalytic activity. And the performance of the assembled zinc-air battery in the charge-discharge cycle is improved. Non-noble metal and a low-cost carbon source are used as raw materials, the synthesis cost of the catalyst is reduced, the yield is high, the preparation period is short, and large-scale commercial application potential is achieved.

The invention discloses an application of NSC348884 in preparation of an antibacterial drug, the bacteria of the NSC348884 are gram-negative bacteria or drug-resistant gram-negative bacteria, and the gram-negative bacteria are acinetobacter baumannii, escherichia coli, pseudomonas aeruginosa or klebsiella pneumoniae; based on an antibacterial drug high-throughput screening technology, it is found from 1280 small molecule compounds that the benzimidazole compound NSC348884 has direct bacteriostasis and sterilization effects on gram-negative bacteria and drug-resistant gram-negative bacteria, and no drug resistance is generated after the benzimidazole compound NSC348884 is continuously applied for 14 days. Further research shows that NSC348884 can interfere with lipid synthesis of gram-negative bacterium cell membranes, inhibit formation of biological membranes and induce lipid metabolism disorder, so that bacteriostatic and bactericidal effects are achieved. In addition, the NSC348884 can also enhance the sensitivity of the drug-resistant bacteria to the imipenem and the polymyxin B.

The invention discloses a three-phase makeup fixing spray and a preparation method thereof. The three-phase makeup fixing spray comprises an emulsion layer located on the upper layer, a water layer located on the middle layer and a powder layer located on the bottom layer. The emulsion layer comprises acrylic acid (ester) / allyl methacrylate copolymer AMP salt, polyurethane-1, an emulsifier and an oil-soluble sun-screening agent, functional auxiliary materials and ethanol are dissolved in the water layer, the powder layer comprises oil absorption powder, and the mass of water in the three-phase make-up spray accounts for 60%-64% of that of the three-phase make-up spray; the emulsifying agent comprises bis (lauramide glutamine) lysine sodium and a component A, and the component A is selected from one or more of polyglycerol-10 myristate, inulin lauryl carbamate and inulin lauryl carbamate; the sun-screening agent is prepared from ethylhexyl salicylate and phenyl benzimidazole sulfonic acid. The three-phase makeup fixing spray provided by the invention has the three-dimensional integrated makeup fixing effect of oil control, makeup fixing and sun protection.

The invention relates to the technical field of anti-corrosion coatings, in particular to an anti-corrosion composite coating for metal pipeline repair and a preparation method thereof.The anti-corrosion composite coating is composed of a component A and a component B. The component A is prepared from, by mass, 100-120 parts of epoxy resin, 10-30 parts of benzimidazolyl-POSS and 5-10 parts of nano filler fibers; the benzimidazolyl-POSS is prepared by enabling octavinyl POSS (Polyhedral Oligomeric Silsesquioxane) and 5-amino-2-mercapto benzimidazole to react with each other; the component B comprises the following raw materials in parts by weight: 20-100 parts of a curing agent, 1-5 parts of a thixotropic agent and 1-5 parts of a silane coupling agent. According to the invention, 5-amino-2-mercapto benzimidazole is bonded to a POSS skeleton through a mercapto-ene click reaction to form a nano-scale hybrid structure, and the nano-scale hybrid structure is uniformly dispersed in epoxy resin, so that the synergistic interaction of a corrosion inhibition function and physical barrier is realized, and the EIS impedance of an epoxy resin coating is remarkably improved.

The invention provides a lithium battery diaphragm and a preparation method thereof, and the preparation method comprises the following steps: carrying out a reaction on melamine and terephthalaldehyde in dimethyl sulfoxide to obtain SNW-1COF; the preparation method comprises the following steps: enabling SNW-1COF to react with allyl-1, 3-sultone in acetonitrile, so as to obtain allyl SCOF; the polyarylether benzimidazole, the 2-sulfydryl-5-fluorobenzimidazole, triethylamine and allyl SCOF are subjected to a reaction in a third solvent, and a membrane casting solution is obtained; and applying the membrane casting solution to a base material, and removing the solvent in the membrane casting solution to obtain the lithium battery diaphragm. According to the invention, the OPBI matrix and the propenyl SCOF react to form a covalent cross-linked network, so that the mechanical properties of the diaphragm in the aspects of thermal shrinkage rate, tensile strength, puncture strength and the like and the electrical properties in the aspects of wettability and ionic conductivity are improved.

The invention relates to the technical field of insulation paste, and discloses high-thermal-conductivity epoxy solid crystal insulation paste and a preparation method thereof.The high-thermal-conductivity epoxy solid crystal insulation paste is prepared by adding epoxy resin, phosphorus-containing benzimidazole, a diluent, a curing accelerator, a curing agent, a defoaming agent, a coupling agent and a thixotropic agent into a homogenizing tank, putting the homogenizing tank into a homogenizer at the speed of 2000 r / min, conducting vacuum homogenization for 2-3 min, and conducting cooling to the room temperature to obtain the high-thermal-conductivity epoxy solid crystal insulation paste. A base material of the epoxy solid crystal glue is obtained; the base material of the epoxy solid crystal adhesive is baked at 140 DEG C for 1 hour and is cured and molded; the preparation method comprises the following steps: adding the heat-conducting filler into a base material of the epoxy solid crystal glue, putting the base material into a homogenizer, carrying out vacuum homogenization for 2-4 minutes at the speed of 2000 r / min to obtain a semi-finished product of the epoxy solid crystal glue, and finally obtaining the high-heat-conductivity epoxy solid crystal insulation glue through a three-roller machine. The insulating glue disclosed by the invention has relatively good heat conduction and flame-retardant effects.

The invention relates to a hydroxamic acid derivative of benzimidazole as well as a preparation method and application of the hydroxamic acid derivative. Specifically disclosed are a compound represented by formula (I), a pharmaceutically acceptable salt thereof or a stereoisomer thereof. The hydroxamic acid derivative of benzimidazole is novel in structure, has good inhibitory activity on HDAC and / or PARP, and further shows good anti-tumor activity.

The invention relates to the field of flame-retardant textile fabrics, and provides a comfortable flame-retardant aramid fabric and a preparation method thereof. The composite filler with the average length of 3.0-8.0 mu m and the diameter of 0.4-1.0 mu m is prepared by adopting the design of multielement blended composite fibers of hydroxyapatite / magnesium hydroxide composite filler, meta-aramid polymer, para-aramid polymer, polybenzimidazole and the like through a hydro-thermal synthesis process of performing silanization surface activation and accurately controlling the molar ratio of calcium to phosphorus to be 1.60-1.67. The preparation method comprises the following steps: preparing the composite filler with the average length of 3.0-8.0 mu m and the diameter of 0.4-1.0 mu m; then industrial production processes such as graded shearing dispersion, continuous wet spinning, multi-stage stretching heat setting and after-finishing are performed, so that synergistic improvement of flame retardant performance and comfort performance is achieved, and the technical problems that a traditional aramid fiber fabric is poor in flame retardant effect, poor in comfort, unstable in processing performance and the like are solved; the fabric has wide application value in high-end application fields such as fire protection clothing, industrial protection textiles and military protection equipment.

The invention discloses a high-temperature-resistant benzimidazolone polyamide imide battery binder as well as a preparation method and application thereof, and belongs to the technical field of battery materials. The high-temperature-resistant benzimidazolone polyamideimide battery binder with uniformly distributed amide segments and imide segments is prepared through a method for activating aromatic diamine on one side of trimethylchlorosilane and changing the activity of amino groups on the two sides, the comprehensive performance of the high-temperature-resistant benzimidazolone polyamideimide battery binder is excellent, the defects that a traditional binder is poor in heat resistance and insufficient in chemical stability are overcome, and the service life of the high-temperature-resistant benzimidazolone polyamideimide battery binder is prolonged. The introduction of high-polarity groups can improve the wettability and ion transmission capability of the electrolyte, improve the solubility of the electrolyte so as to facilitate electrode forming, and can also form strong chemical bonds or physical adsorption with positive and negative inorganic active materials during application, thereby reducing the structural damage in the cycle process and improving the electrochemical performance of the battery. The lithium ion battery electrode can keep a stable structure in a high-temperature environment, the thermal runaway risk caused by high temperature is remarkably reduced, and the application requirements of the lithium ion battery in a fast charging or high-temperature energy storage scene are well met.

The invention discloses an iron-loaded sulfonated carbon nitride heterogeneous catalyst as well as a preparation method and application thereof, and belongs to the field of heterogeneous catalysts. The iron-loaded sulfonated carbon nitride heterogeneous catalyst consists of monatomic Fe and a sulfonated graphite phase carbon nitride carrier, so that the prepared iron-loaded sulfonated carbon nitride heterogeneous catalyst can catalyze the reaction of benzoxazole and absolute ethyl alcohol, is high in catalytic efficiency, can catalyze the reaction of benzimidazole or benzothiazole and absolute ethyl alcohol, and is high in catalytic efficiency. Therefore, 2-(1-hydroxyethyl)-benzimidazole or 2-(1-hydroxyethyl)-benzothiazole is synthesized, and concentrated acid does not need to be used as a catalyst in the synthesis process. The sulfonation degree of the iron-loaded sulfonated carbon nitride heterogeneous catalyst can be regulated and controlled, the iron-loaded sulfonated carbon nitride heterogeneous catalyst can catalyze the construction of a directional C-C bond, and the iron-loaded sulfonated carbon nitride heterogeneous catalyst keeps stable in the reaction process and can be recycled for 5 times or more.

Optionally substituted benzoimidazol-1,2-yl amides, such as compounds of Formula 1 or Formula 2, can be used to treat disorders associated with a Kv7 potassium channel activator. Compositions, medicaments, and dosage forms related to the treatment are also disclosed herein.

The invention relates to the field of corrosion-resistant coatings, and discloses a corrosion-resistant coating and application of the corrosion-resistant coating in an aluminum alloy heat exchange tube, the corrosion-resistant coating comprises waterborne epoxy resin, modified silicon dioxide nanotubes, modified composite filler and auxiliaries; the modified silicon dioxide nanotube is prepared by carrying out acylating chlorination on a silicon dioxide nanotube by using 4-isocyanobenzoyl chloride and then reacting with an amination modifier; the amination modifier is prepared by synthesizing spirocyclic phosphate diacyl chloride by using pentaerythritol and phosphorus oxychloride, and then carrying out substitution on 2-aminobenzimidazole, 3, 5-diamino-1, 2, 4-triazole and the spirocyclic phosphate diacyl chloride; the modified composite filler is prepared by forming a polydopamine layer on the outer surface of mica through auto-polymerization of dopamine, then wrapping the outer layer of dopamine modified mica with zinc oxide through a sol-gel method and high-temperature calcination, and then modifying with KH550. The coating prepared by the invention has good mechanical properties, corrosion resistance, heat insulation performance, flame retardant effect and antibacterial effect.

The invention discloses PP (polypropylene) plastic for automotive trim, which is prepared from the following raw materials in parts by weight: 90 to 100 parts of polypropylene, 8 to 12 parts of POE (polyolefin elastomer), 20 to 25 parts of modified talcum powder, 5 to 8 parts of compatilizer, 0.7 to 1.1 parts of lubricant and 0.4 to 0.7 part of heat stabilizer, according to the modified talcum powder, talcum powder is adopted as a raw material, ZnO / TiO2 is introduced to the talcum powder through a hydrothermal method, and then 5-amino-2-mercaptobenzimidazole and 1-(4, 6-diamino-1, 3, 5-triazine-2-yl) guanidine are sequentially introduced in a chemical bond mode. The PP plastic has excellent ultraviolet aging resistance, lasting antibacterial property, good dimensional stability and excellent mechanical property, can meet the comprehensive requirements of automotive interior materials on weather resistance, antibacterial property, dimensional stability, toughness and other properties, and has wide application prospects.

The invention provides a glass fiber impregnating compound for reinforcing epoxy resin as well as a preparation method, a product and application of the glass fiber impregnating compound. The impregnating compound comprises effective components and water, the solid content is 5.0%-10.0%, and the balance is water; the impregnating compound comprises the following effective components in percentage by mass: 5%-32% of the silane coupling agent, 35%-80% of the film-forming agent, 10%-30% of the lubricant, 1%-6% of the surface additive, 2%-10% of the cross-linking agent and 1%-6% of the pH value regulator. The silane coupling agent is a mixture of a cationic aminotoluene functionalized silane coupling agent and a cationic benzimidazole silane coupling agent. The glass fiber yarn produced by adopting the impregnating compound is less in hairiness, good in flexibility, good in interface compatibility with epoxy resin, excellent in transverse tensile property and suitable for producing a wind power blade base material, and when the base material and the epoxy resin are used for vacuum infusion, the resin is rapidly and completely soaked, and the service life of the resin is prolonged. And the poured composite material has few forming defects and excellent static mechanical properties and fatigue resistance.