5907 results about "Firming agent" patented technology

The invention relates to the technical field of heavy anti-corrosion coatings, in particular to a graphene enhanced epoxy modified organic silicon resin heavy anti-corrosion powder coating. The coating is prepared from the following components in parts by weight: 42 to 58 parts of epoxidized epoxy modified organic silicon resin, 0.8 to 2.5 parts of hydroxylated graphene, 6 to 11 parts of nano zirconium dioxide coated boron nitride, 2.5 to 5.5 parts of lanthanum iso-octoate-titanate composite coupling agent, 1.5 to 3.5 parts of bis (3-triethoxysilylpropyl) disulfide, 4 to 7 parts of polyhedral oligomeric silsesquioxane, 5 to 8 parts of curing agent, 0.8 to 1.8 parts of flatting agent and 0.4 to 0.9 part of defoaming agent. 2.5 to 4.5 parts of polyether-ether-ketone micro powder and 1.2 to 2.8 parts of fluorine-containing phosphate ester. According to the invention, the resin is modified through chemical bridging, the modified graphene and the nano-coated powder are matched to construct a synergistic enhancement system, and the interface bonding is optimized by the composite coupling agent. The coating is excellent in adhesive force, corrosion resistance and mechanical property, good in processing fluidity and high in aging resistance and thermal stability, solves the problem that a traditional product is short in performance, and meets the industrial requirement.

The embodiment of the invention discloses an epoxy molding compound, an epoxy molding film and an electronic component, the epoxy molding compound comprises epoxy resin and a zeolite imidazole framework material, and the zeolite imidazole framework material comprises imidazole ligands and metal ions. The zeolite imidazole framework material is used as a curing agent and a nano reinforced phase, imidazole groups on the surface of the zeolite imidazole framework material can be subjected to a ring-opening reaction with epoxy resin to form covalent bonds, the zeolite imidazole framework material can induce the epoxy resin to generate a microcrack deflection mechanism, and the zeolite imidazole framework material can promote curing of the epoxy resin, so that the epoxy resin is cured, and the curing effect is improved. Therefore, the thermal expansion coefficient of the epoxy molding compound is reduced, the fracture toughness of the epoxy resin is improved, and the thermal stability of the epoxy molding compound is improved.

The invention relates to the field of adhesives, in particular to a structural adhesive epoxy composition and a preparation method thereof. The structural adhesive epoxy composition is prepared from the following raw materials: epoxy resin, a toughening agent, a reinforcing agent, filler, a latent curing agent, a latent accelerant, a chemical foaming agent, a physical foaming agent and the like. Finally, the epoxy composition prepared by the invention can be used as a structural adhesive raw material, has ultrahigh expansion rate, low-temperature rapid curing capacity and structural adhesive property, and also has good mechanical properties and excellent comprehensive application effect, so that the complex requirements of the application field of the prior art on the structural adhesive raw material are met.

The invention belongs to the technical field of protective coatings, and discloses an anti-corrosion, wear-resistant and high-temperature-resistant coating as well as a preparation method and application thereof. The coating comprises a primer, a middle transition layer and a finish; the raw materials of the primer comprise a primer material and a primer curing agent component; the primer material comprises modified epoxy phenolic resin, a primer functional filler, a first mixed solvent, a high-temperature-resistant coupling agent and an anti-settling agent; the raw materials of the middle transition layer comprise a middle transition layer material and a middle curing agent component; the materials of the middle transition layer comprise polyimide modified epoxy resin, a wear-resistant filler, a reactive diluent, a carbon nanotube, a first dispersant and a compatilizer; the raw materials of the finishing paint comprise a finishing paint material and a finishing paint curing agent component; the finishing paint material comprises organic silicon modified fluorocarbon resin, finishing paint functional filler, a second mixed solvent, a second dispersing agent and a flatting agent. According to the invention, a resin-based composite coating system is synergistically designed through multi-phase materials, so that optimal balance of corrosion resistance, wear resistance, toughness and high temperature resistance of the coating is realized.

The invention relates to the field of coatings, in particular to an industrial anticorrosive coating and a preparation method thereof. The coating comprises film-forming resin, a curing agent, a solvent and an anti-corrosion composite nanofiller. The anti-corrosion composite nanofiller has a three-layer structure, wherein an inner core is mesoporous silica loaded with an organic corrosion inhibitor; the middle shell layer is an amino-functionalized metal organic framework material grown in situ; and the outer layer is a low-surface-energy layer formed by modification of a hydrophobic modifier.

The invention discloses a light telegraph pole cement material and a preparation method thereof, and relates to the technical field of cement concrete. The method comprises the following steps: firstly, carrying out acid pickling, silane coupling agent grafting and nanoparticle vacuum impregnation treatment on shale ceramsite to obtain modified light ceramsite; the preparation method comprises the following steps: ultrasonically dispersing graphene oxide, compounding with Portland cement clinker and modified fly ash, and reacting with epoxy resin emulsion, a curing agent and a silane coupling agent to prepare organic-inorganic composite modified cement; the bamboo skeleton is subjected to silane coupling agent pretreatment to obtain a modified skeleton; then, mixing composite cement, an additive and water into slurry, adding the modified ceramsite and aggregate, and performing high-speed stirring and ultrasonic dispersion to form homogeneous concrete slurry; and finally, putting the modified bamboo skeleton into a mold, injecting the slurry, and performing centrifugal forming, steam curing and natural curing to obtain the cement material. The prepared lightweight telegraph pole cement material has excellent mechanical strength.

The invention discloses a water-borne epoxy resin coating which comprises a component A and a component B, the component A is prepared from 60 to 80 parts of 50 percent modified water-borne epoxy resin emulsion, 5 to 15 parts of deionized water, 0.5 to 1 part of wetting dispersant, 0.2 to 0.8 part of defoaming agent, 5 to 10 parts of modified zinc phosphate, 3 to 5 parts of ion exchange antirust pigment, 4 to 6 parts of sericite powder, 3 to 5 parts of glass flake, 5 to 10 parts of precipitated barium sulphate, 1 to 5 parts of nano silicon dioxide and 0.5 to 1 part of rheological additive; 1 to 2 parts of modified organic bentonite slurry; 0.1 to 0.3 part of a pH conditioning agent; and 0.2 to 0.8 part of a flash rust inhibitor. The component B is prepared from 40 to 50 parts of waterborne epoxy-amine adduct, 20 to 30 parts of 50 percent modified polyamide curing agent, 5 to 15 parts of 60 percent Mannich base phenolic aldehyde amine curing agent, 0.5 to 1.5 parts of epoxy silane coupling agent, 1 to 2 parts of nonionic surfactant and 15 to 20 parts of deionized water. The emulsion stability of the waterborne epoxy resin coating is improved through a bisphenol A / F mixed epoxy emulsion and a grafted polyethylene glycol hydrophilic chain segment.

The preparation method comprises the following steps: mixing 20-40 parts by mass of substituted hydroxymethyl glycoluril, 45-85 parts by mass of mercaptocarboxylic acid and 0.5-3 parts by mass of an acidic catalyst, stirring and reacting for 1-10 hours at the temperature of 50-150 DEG C under the pressure condition of-0.01 to-0.1 MPa, adding 300-800 parts by mass of an organic solvent for diluting after the reaction is finished, washing and purifying with deionized water, and collecting an organic layer, thereby obtaining the mercaptan curing agent. Concentrating and drying to obtain the mercaptan curing agent. According to the thiol curing agent, the rigid glycoluril group is introduced, so that the rigidity of a cured product structure is improved, and the mechanical property, the adhesive property, the heat resistance and the damp-heat aging resistance of a cured product are improved; four tertiary amine groups in the substituted glycoluril have a certain self-promotion effect on a thiol curing epoxy reaction, and the curing reaction temperature is reduced under the condition that an accelerant is not added; the glycoluril-containing thiol epoxy resin curing agent disclosed by the invention has good application value and development prospect.

The invention relates to a high-thermal-conductivity epoxy resin conductive adhesive containing a composite conductive filler and a preparation method of the high-thermal-conductivity epoxy resin conductive adhesive. The high-thermal-conductivity epoxy resin conductive adhesive containing the composite conductive filler comprises 6-16% of graphene oxide modified epoxy resin, 0.6-3% of a curing agent, 0-1% of a curing accelerator, 2-7% of epoxidized soybean oil modified single-layer / multi-layer carbon nanotubes, 3-7% of carbon fibers, 3-7% of nano silver powder, 40-70% of micron silver powder, 5.0-15.0% of a surface treating agent, 0.3-2.7% of a coupling agent, 0.5-1.5% of a dispersing agent, 0.1-0.3% of an antioxidant and 0.1-0.3% of a lubricant. 0.5% and the balance of a solvent. The graphene oxide modified epoxy resin and the epoxidized soybean oil modified single-layer / multi-layer carbon nanotubes are utilized to improve the dispersion stability of the filler, the modified single-layer / multi-layer carbon nanotubes are adopted as a short-range conductive additive, the carbon fibers are adopted as a long-range conductive additive, and the graphene oxide modified epoxy resin and the epoxidized soybean oil modified single-layer / multi-layer carbon nanotubes and the carbon fibers cooperate to improve the conductivity. The conductive adhesive disclosed by the invention is high in heat conductivity, low in volume resistivity and high in tensile strength and bending strength, and has a wide application prospect in the fields of automotive electronics, wind power photovoltaics, LEDs (Light Emitting Diode), LCDs (Liquid Crystal Display) and the like.

A high-temperature-resistant and aging-resistant polyurethane material and a preparation method therefor. The polyurethane material comprises the following components in parts by mass: 21-27 parts of a modified polyurethane resin, 10-15 parts of a phenolic resin, 10-15 parts of an epoxy resin, 16-20 parts of a modified solid filler, 7-13 parts of a curing agent, 1-2 parts of a defoaming agent, 1-3 parts of a wetting agent, 0.7-1 part of a leveling agent, and 5-10 parts of water. The high-temperature-resistant and aging-resistant polyurethane material has excellent temperature resistance and moisture resistance, high aging resistance, and strong adhesion to a glass surface and can be used as a coating with which a glass surface is coated.

The invention discloses a corrosion-resistant coating for a pipeline and a preparation method of the corrosion-resistant coating, and belongs to the technical field of coatings. The preparation method comprises the following steps: weighing 100-110 parts by weight of epoxy resin, 1-3 parts by weight of a dispersing agent, 5-10 parts by weight of a thickening thixotropic agent and 1-3 parts by weight of a defoaming agent, dispersing for 0.5-1 hour, adding 10-15 parts by weight of a diluent, stirring, and filtering by a 60-mesh screen to obtain a component A; weighing 90-100 parts of a curing agent, 50-60 parts of an anticorrosive filler and 5-10 parts of an accelerant, dispersing for 0.5 h, and filtering with a 60-mesh screen to obtain a component B; and mixing the component A and the component B according to the mass ratio of 6: (2-3), and dispersing to obtain the pipeline coating. A chemical effect exists between the anti-corrosion filler and the epoxy resin, so that the anti-corrosion filler can be highly dispersed and stably exist in the coating, powder and an organic medium in the anti-corrosion filler can give full play to a synergistic effect, and the pipeline coating is endowed with excellent and stable corrosion resistance and the like.

The invention discloses an adhesive containing epoxy-terminated polyurethane epoxy resin as well as a preparation method and application of the adhesive. The adhesive comprises the following components in parts by weight: 10-15 parts of epoxy resin, 70-75 parts of epoxy-terminated polyurethane epoxy resin, 19-21 parts of an amine curing agent and 8-15 parts of heat-conducting filler, wherein the epoxy-terminated polyurethane epoxy resin is obtained by reacting a polyurethane prepolymer and epoxy resin, NCO of the polyurethane prepolymer and hydroxyl of the epoxy resin are subjected to an addition reaction, and after the reaction is finished, NCO of a system is eliminated by adopting a small-molecule epoxy compound; the polyurethane prepolymer is obtained by reaction of isocyanate and polyether polyol with flexible chain segments. According to the adhesive, the curing heat release peak value is reduced, the toughness is improved, meanwhile, the high strength is kept, the foaming problem is avoided, the defects that a traditional epoxy adhesive is high in heat release and poor in toughness are overcome, and the adhesive is suitable for the fields such as aerospace and electronic and electric appliances which have strict performance requirements.

The present invention discloses a low-temperature conductive adhesive, which is prepared by weight using raw materials including 70-80 parts of silver powder, 20-30 parts of resin matrix, 1-10 parts of curing agent, 0.1-0.5 parts of silane coupling agent, 0.1-0.5 parts of stabilizer, and 0.1-0.5 parts of metal salt. The present invention introduces an organic metal salt into the resin matrix to reduce the contact resistance of the colloid, and after wet heat aging, maintains a lower contact resistance increase rate. The present invention adopts a combination of epoxy resin, acrylate and modified epoxy acrylic resin, and the weight of epoxy resin and acrylate is less than or equal to the weight of modified epoxy acrylic resin, so that low-temperature curing can be achieved. The present invention can achieve 60-80 ° C, 20-40 min curing, and the conductive adhesive elongation at break obtained can reach more than 8%, and before and after wet heat aging, there is a more stable and relatively small contact resistance, which is particularly suitable for the electronic field with high requirements for contact resistance.

The invention discloses a low-warpage damp-heat-resistant liquid epoxy molding compound as well as a preparation method and application thereof. The liquid epoxy molding compound is prepared from the following raw material components in parts by mass: 85 to 90 parts of modified silicon dioxide, 5 to 8 parts of naphthalene type epoxy resin monomer, 5 to 8 parts of anhydride curing agent, 0.1 to 0.3 part of coupling agent, 0.1 to 0.3 part of adhesion promoter and 0.2 to 0.5 part of temperature response type amine catalyst. The modified silicon dioxide is obtained by carrying out surface modification on micron-sized silicon dioxide by adopting a silane coupling agent containing an epoxy group, and the mass of the silane coupling agent containing the epoxy group is 0.3-0.8% of the mass of silicon dioxide. The liquid epoxy molding compound provided by the invention has excellent flowability, adhesive force and heat and humidity resistance, can significantly relieve and reduce the warping of a silicon wafer, and is suitable for integrated circuit packaging.

The invention provides a preparation method of a self-repairing resin-based composite material based on dynamic bonds. The self-repairing epoxy resin comprises one covalent dynamic bond of a Diels-Alder bond, a disulfide bond or a borate bond, and the preparation method of the self-repairing epoxy resin comprises the following steps: heating epoxy resin to a molten state, adding a curing agent component while stirring, and carrying out a prepolymerization reaction to obtain a prepolymer; the curing agent comprises a rigid diamine curing agent, a dynamic diamine monomer and a flexible chain segment regulator, and the dynamic diamine monomer contains a dynamic covalent bond; and carrying out curing molding on the prepolymer to obtain the self-repairing epoxy resin. And impregnating reinforced fibers or fabrics thereof with the prepared prepolymer, and heating and curing to obtain the self-repairing resin-based composite material. The invention provides a chemical molecule design, dynamic reversible chemical bonds are introduced into a resin matrix, and by constructing the dynamic bonds, the composite material has high performance of a traditional composite material and also has life-like self-healing ability.

The invention discloses a high-toughness conductive and thermal-conductive epoxy adhesive, a preparation method thereof and a conductive film, and belongs to the technical field of conductive materials. Comprising the following raw material components in parts by weight: 100 parts of epoxy resin, 4-25 parts of a latent curing agent, 0.5-5 parts of an accelerant, 200-600 parts of conductive filler, 5-15 parts of an epoxy-terminated polyurethane flexibilizer, 5-20 parts of a core-shell flexibilizer, 5-10 parts of a nitrile rubber flexibilizer, 2-10 parts of a reactive diluent, 0.5-2 parts of a coupling agent and 20-50 parts of a solvent. Through compounding of the over-end epoxy type polyurethane flexibilizer, the core-shell flexibilizer and the nitrile rubber flexibilizer, the prepared conductive adhesive has excellent toughness and bonding characteristics, and meanwhile, the shrinkage stress and thermal stress in the curing process can be reduced.

The invention discloses a composite insulating arm surface repairing material and a repairing method, and the repairing material comprises the following raw material components in parts by weight: 100 parts of matrix resin, 0.8-4 parts of a curing agent, 0.2-1.2 parts of an accelerant, 5-20 parts of color paste, 10-25 parts of inorganic particles, and 10-25 parts of inorganic fibers. The repairing material is simple in preparation method and convenient to use, according to the repairing method, the repairing material is used for replacing gel coat spraying repairing, the operation difficulty is low, the repairing duration is shortened, the repairing efficiency is improved, and all technical indexes of the repaired insulating arm component can meet the use requirements.

The invention discloses a high-temperature-resistant tough epoxy resin adhesive and a preparation method thereof, and relates to the technical field of epoxy resin, the high-temperature-resistant tough epoxy resin adhesive comprises the following components by mass: 30-60 parts of epoxy resin, 15-40 parts of a modified curing agent, 5-20 parts of a flexibilizer, 8-35 parts of an inorganic filler, 1-5 parts of a coupling agent, and 0.5-3 parts of an antioxidant; the epoxy resin is formed by compounding bisphenol A epoxy resin and novolac epoxy resin according to the mass ratio of (1-3): 1; the modified curing agent is prepared by modifying an imidazole curing agent with a silane coupling agent. The problem that high temperature resistance and toughness of an epoxy resin adhesive are difficult to consider at the same time can be solved.

The invention provides an epoxy resin packaging bonding material with high bonding stability and a preparation method thereof. The packaging bonding material is prepared from the following raw material components: 8 to 18 percent of graphene oxide modified epoxy resin, 0.8 to 4.0 percent of a curing agent, 0 to 1 percent of a curing accelerator, 0.4 to 2.0 percent of a silane coupling agent, 2 to 7 percent of nano carbon black, 2 to 7 percent of carbon fiber, 40 to 60 percent of flaky silver powder, 4 to 8 percent of spherical silver powder, 4.4 to 13.6 percent of a surface treating agent, 4 to 6 percent of a reactive diluent, 0.5 to 1.5 percent of a toughening agent, 0.5 to 1.5 percent of a dispersing agent, 0.1 to 0.5 percent of a lubricating agent and the balance of a non-reactive diluent. Graphene oxide is utilized to modify epoxy resin, the dispersion stability of the filler is improved, modified carbon black is adopted as a short-range conductive additive, carbon fibers are adopted as a long-range conductive additive, the modified carbon black and the carbon fibers synergistically improve the conductivity, and the reinforcing effect is achieved. The packaging bonding material disclosed by the invention has the characteristics of low volume resistivity, high tensile strength and bending strength, high bonding stability and the like, and has wide application prospects in the fields of automotive electronics, wind power photovoltaics, LEDs (Light Emitting Diode), LCDs (Liquid Crystal Display) and the like.

The invention belongs to the technical field of epoxy resin coatings, and particularly relates to an epoxy resin insulating coating with high toughness and high ultraviolet aging resistance and a preparation method thereof. The epoxy resin insulating paint is composed of 2-5 g of a TiO2 (at) PDA (at) BTA nanometer material, 100 g of epoxy resin and 10-60 g of a curing agent, wherein the TiO2 (at) PDA (at) BTA nanometer material has a core-shell structure. The epoxy resin insulating paint is constructed on the basis of the multi-layer core-shell structure functional nanoparticles, so that the toughness of the material is improved, and the ultraviolet aging resistance of the paint is also improved.

The invention provides a sidewalk antiskid terrace material and a construction process thereof, and belongs to the technical field of terrace material manufacturing. The sidewalk antiskid terrace material is prepared from the following components: epoxy resin, polysiloxane elastic resin, fluorocarbon resin, modified covalent organic framework nanosheets, boron nitride nanotubes, nano silicon nitride particles, nano silicon dioxide, nano zinc oxide, a modified flame retardant, attapulgite, a curing agent, an accelerant, a flatting agent, a coupling agent and a dispersing agent. According to the sidewalk antiskid terrace material, various high-performance resins are compounded with the nano filler to form a coating with a compact and uniform structure, so that the mechanical strength and wear resistance of the terrace are remarkably improved. In addition, due to the application of the modified flame retardant, the floor has a good flame-retardant effect, and the safety is improved. The whole formula and the construction process are scientific and reasonable, strong adhesion of the coating is ensured, construction is simple and convenient, curing is sufficient, and the coating is suitable for long-term use of outdoor sidewalks and has attractive appearance and practicability.

The invention relates to the technical field of packaging materials, in particular to a chip inductor packaging material and a preparation method thereof. The packaging material is prepared from epoxy resin serving as a matrix, composite boron nitride modified hollow glass beads, spherical silica powder, a silane coupling agent, a curing agent, an accelerant and a defoaming agent. Wherein the boron nitride modified hollow glass beads are obtained by constructing a boron nitride functional layer through branched polyamidoamine grafting and a melamine-boric acid in-situ method and carrying out high-temperature calcination. By means of the innovative structural design, efficient bonding of a filler interface and ordered construction of a heat conduction path are achieved, the heat conduction performance and the mechanical strength of the composite material are remarkably improved, and the dielectric constant and the dielectric loss are effectively reduced. The packaging material provided by the invention has excellent electrical, thermal and mechanical comprehensive performance, meets the requirements of light weight and high reliability packaging of a new generation of high-performance chip inductor devices, and has important industrialization and application prospects.

The invention relates to the technical field of asphalt material preparation, in particular to a cold-mixing and cold-spreading waterborne acrylic hybrid epoxy environment-friendly asphalt material preparation process which comprises the following steps: physically mixing waterborne acrylic emulsion and waterborne epoxy emulsion to obtain waterborne acrylic hybrid epoxy emulsion; adding the asphalt pavement milling material and an activating agent into vibration stirring equipment, and stirring to obtain an activated milling material; after the activated milling material is obtained, continuously adding the water-based acrylic hybrid epoxy emulsion, the curing agent and the cold-mixed asphalt modifier into the vibration stirring equipment, and stirring and coating at normal temperature; pure water is added into the vibration stirring equipment, and the torque of the vibration stirring equipment and the temperature of the asphalt mixture are collected within a preset time period after the pure water is added; determining a local coating non-uniform evaluation value and a viscosity evaluation coefficient of the asphalt mixture; the curing reaction in the vibration stirring equipment is regulated and controlled, and the prepared asphalt material is obtained. The mechanical property of the prepared asphalt material is improved.

The invention provides an antifouling self-cleaning fluorocarbon finish paint as well as a preparation method and application thereof, and particularly relates to the technical field of special coatings. The antifouling self-cleaning fluorocarbon finish paint is composed of a component A and a component B in a ratio of (80-87): 16, the component A is prepared from the following components in parts by weight: 560 to 580 parts of fluorocarbon resin, 30 to 35 parts of a first solvent, 20 to 40 parts of a second solvent, 180 to 220 parts of titanium dioxide, 90 to 110 parts of filler, 11 to 20 parts of a light stabilizer, 3 to 5 parts of a thickening agent and 13 to 28 parts of an auxiliary agent; the component B comprises the following components in parts by weight: 20-22 parts of fluorocarbon resin, 4-5 parts of a chain extender, 15-20 parts of a diamine curing agent, 15-20 parts of a polyamine curing agent and 25-35 parts of a second solvent. According to the finishing paint, on the basis of enhancing the self-cleaning capability, the weather resistance of a coating is improved, and the aging and damage of the coating are delayed, so that the service life of the coating is prolonged.

The invention relates to the technical field of road engineering, in particular to a high-performance warm-mixing high-modulus dense water pavement structure and a preparation method thereof. The waterproof bonding layer is prepared by mixing an epoxy resin main agent, a microencapsulated amine curing agent, a functional diluent and filler according to the mass ratio of (50-60): (25-35): (5-8): (12-18), and the filler is expanded vermiculite powder; the mixture lower layer is prepared by mixing a high modulus agent, a lower layer warm mixing agent, asphalt, aggregate and mineral powder according to the mass ratio of (0.4-0.8): (0.3-1.1): (5-6.5): (80-85): (2-5); the high-modulus agent is prepared by mixing POE (Polyolefin Elastomer), modified sepiolite, an interfacial compatibilizer and an anti-aging agent according to the mass ratio of (72-78): (16-20): (4-6): (1-2); a non-stick wheel bonding layer; preparing a mixture upper layer; a curing agent is added into epoxy resin in a microcapsule mode, construction heat triggers microcapsule breaking to achieve accurate epoxy curing, molten POE forms a barb structure in vermiculite gradient pores, sepiolite fibers puncture to construct an anchor chain framework, the three components cooperate to eliminate an interface weak area, and stripping resistance is improved in a leap-over mode.

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 provides a toughened curing-controllable prepreg and a preparation method thereof, and belongs to the technical field of high-performance composite materials. Comprising the following components in parts by mass: 100 parts of epoxy resin, 100 parts of a thermoplastic resin toughening agent, 100 parts of an inorganic nanoparticle toughening agent, 100 parts of a latent curing agent, 100 parts of an organic urea accelerant, 100 parts of an imidazole accelerant and 100 parts of a reactive diluent, correspondingly, 1-5 parts by mass of a thermoplastic resin flexibilizer, 0-3 parts by mass of an inorganic nanoparticle flexibilizer, 4-8 parts by mass of a latent curing agent, 1-4 parts by mass of an organic urea accelerator, 0.1-0.5 part by mass of an imidazole accelerator and 5-20 parts by mass of an active diluent are added. The prepreg provided by the invention not only is endowed with fast curing and controllable curing time, but also is endowed with relatively long room-temperature storage period, high toughness and good impact resistance, and is especially suitable for the fields of low-altitude aircrafts, automobiles, ships and the like.

The invention discloses a heat dissipation type anti-corrosion coating and a preparation method thereof, and belongs to the technical field of anti-corrosion coatings. The heat dissipation type anticorrosive paint comprises a component A and a component B, wherein the component A comprises the following components in parts by mass: 100 parts of heat-conducting water-borne epoxy resin, 4-6 parts of graphene, 0.3-0.5 part of an antioxidant, 0.2-0.4 part of a defoaming agent, 0.2-0.4 part of a flatting agent and 10 parts of first deionized water; the component B comprises the following components in parts by mass: 10-20 parts of a curing agent, 40-60 parts of a toughening agent, 4-6 parts of functionalized boron nitride microspheres and 30-50 parts of second deionized water; the heat-conducting water-borne epoxy resin is 1, 5-naphthalene diphenol modified water-borne epoxy resin; the curing agent is an aromatic amine curing agent; the toughening agent is obtained by carrying out copolymerization on acrylamide, N-(4-aminophenyl) acrylamide, 1, 3, 5-triacryloyl-s-triazine and 3-dimethylamino allyl phosphoric acid; the functionalized boron nitride microspheres are boron nitride microspheres modified by 4-aminobenzoic acid.

The invention relates to the field of composite materials, in particular to wear-resistant paint for a drill rod, a preparation method of the wear-resistant paint, the drill rod with a surface wear-resistant coating and a preparation method of the drill rod. The preparation method of the wear-resistant coating for the drill rod comprises the following steps: S1, performing high-temperature oxidation treatment on composite powder of silicon carbide and diamond to obtain pretreated composite powder; s2, mixing the pretreated composite powder obtained in the step S1 with a silane coupling agent solution, heating and stirring, and then drying to obtain surface modified composite powder; s3, mixing epoxy resin with a toughening agent and a defoaming agent, heating, then adding the surface modified composite powder obtained in the step S2, uniformly mixing, and defoaming to obtain mixed slurry; s4, mixing the mixed slurry obtained in the step S3 with a curing agent, and defoaming to obtain the wear-resistant coating. The wear-resistant paint provided by the invention can form a coating with high wear resistance and high toughness on the surface of the drill rod.

The invention discloses multi-solvent synergistically activated low-temperature semi-sintered copper paste and a preparation method and application thereof, and belongs to the technical field of conductive paste. The multi-solvent synergistically activated low-temperature semi-sintered copper slurry comprises the following raw material components in percentage by mass: 82-88% of conductive filler, 2-3% of a resin carrier, 4-7% of an activating solvent, 4-7% of a dispersing solvent and 2-3% of a curing agent. Through cooperation of multiple solvents, full-stage activation of the copper particles is achieved, pre-connection and sintering of the copper particles before resin is completely crosslinked and cured are promoted, densification of the overall structure is improved, the insulation barrier effect of the resin is effectively avoided, the resistivity is reduced, meanwhile, inhibition of the resin on sintering of the copper particles is solved, and the service life of the copper particles is prolonged. And good balance between conductivity and interface adhesion is realized. Through resin curing, chemical bonding between the slurry and the substrate can be enhanced, a metal bond network among copper particles is expanded, and mechanical connection stability and electrical performance are guaranteed.