612 results about "Single component" patented technology

A vehicular glass window panel assembly includes a glass panel having an inner side and an outer side, and a handle and catch element adhesively bonded along a first perimeter region of the inner side. The handle and catch element includes a handle portion and a catch configured for engaging a latching element of a vehicle when the window panel assembly is mounted at the vehicle to close over an aperture of the vehicle. The handle and catch element is formed as a single component via a plastic injection molding process. With the latching element engaged with the catch, the window panel assembly is secured at the vehicle. With the latching element disengaged from the catch, the window panel assembly is removable from the vehicle. With the window panel assembly removed from the vehicle, the handle portion is graspable by a user to carry the window panel assembly.

The invention discloses a rare-earth metal arylamine group compound as well as preparation method and application thereof. The invention discloses the rare-earth metal arylamine group compound which is characterized in that a general formula of the rare-earth metal arylamine group compound is (2,6-R12PhNH)5LnLi2(THF)2, wherein Ln is a rear-earth metal selected from one of neodymium, samarium, ytterbium or yttrium; R1 is selected from one of hydrogen, methyl or isopropyl. The rare-earth metal arylamine group compound has the advantages that the rare-earth metal arylamine group compound has a definite structure; raw materials used in the preparation method are simple, easily obtained and cheap; the reaction process is simple and easily operated; the rare-earth metal arylamine group compound product is conveniently purified and the yield of the product is high; the rare-earth metal arylamine group compound has a high activity when acting as a single component catalyst to catalyze a hydrogen phosphine reaction of aldehyde or ketone and phosphite ester; the use amount of the catalyst is less; the yield is high; a substrate has wide universality; a new and simple method is provided for synthesis of a-hydroxyphosphonate.

The invention provides a modified single-component polyurea waterproof coating as well as a preparation method and application thereof and a hydraulic concrete protective coating structure, and relates to the technical field of hydraulic concrete protection. The modified single-component polyurea waterproof coating provided by the invention is prepared from the following raw materials by mass: polytetrahydrofuran polyol, polyether triol, fluorine-containing polyether polyol, FEVE type fluorocarbon resin, organic silicon polyether glycol, a water repellent agent, isocyanate, a defoaming agent, a diluent, a dispersing agent, a catalyst, a latent curing agent, a coupling agent, a water removal agent, a pigment filler, a thixotropic agent and a plasticizer. The modified single-component polyurea waterproof coating has excellent comprehensive mechanical properties, anti-icing adhesion performance and ice pulling resistance, and the problem of freezing injury is thoroughly solved; the surface roughness is low, the hydrophobicity is high, and resistance and roughness are reduced; the water resistance is high; the coating is high in adhesive force. The modified single-component polyurea waterproof coating is applied to cold region hydraulic concrete anti-freezing damage protection engineering, and the long-term operation protection performance is good.

The invention belongs to the technical field of polyurethane waterproof coatings, and particularly relates to a single-component fluorine-free high-hydrophobicity polyurethane waterproof coating and a preparation method thereof, and the single-component fluorine-free high-hydrophobicity polyurethane waterproof coating comprises the following raw materials by weight: 60-80 parts of composite polyether polyol; 20 to 40 parts of silane modified polyether polyol; 11 to 17 parts of diisocyanate; 2-5 parts of a chain extender; 50 to 70 parts of a plasticizer; 50 to 70 parts of filler; 0.15 to 0.2 part of a catalyst; and 3-5 parts of an auxiliary agent. A polyoxypentene ether chain segment, a castor oil-based structure and a silane group are introduced into the molecular structure of the waterproof coating through chemical modification, the intrinsic hydrophobic and mechanical properties of the material are improved, the migration defect caused by addition of a hydrophobic agent and silicone oil in a traditional preparation method is overcome, and the invention further provides a preparation method of the waterproof coating.

The invention relates to the technical field of chemistry, and mainly relates to carboxyl-terminated nitrile rubber modified epoxy resin and a preparation method thereof, and a high-strength single-component adhesive for vehicles and preparation and use methods thereof. The preparation method of the carboxyl-terminated butadiene-acrylonitrile rubber modified epoxy resin comprises the following steps: adding carboxyl-terminated butadiene-acrylonitrile rubber into epoxy resin E51, adding an initiator, heating, carrying out a first stirring reaction under vacuum, adding polyether amine T5000, and carrying out a second stirring reaction to obtain the carboxyl-terminated butadiene-acrylonitrile rubber modified epoxy resin. The carboxyl-terminated nitrile rubber modified epoxy resin prepared by the invention is good in performance, and can improve the mechanical strength and the bonding strength after being applied to an adhesive. According to the invention, the aliphatic carbon long chain is added, so that a chain segment composed of a cured product is softer and higher in degree of freedom, the toughness of colloid is better, and meanwhile, the introduced aliphatic long chain is also beneficial to improving the low-temperature resistance of the adhesive and improving the defect that epoxy resin is easy to brittle and crack at low temperature.

The invention discloses a single-component polyurethane liquid glue which comprises a hydroxyl-terminated polyurethane prepolymer, polyol and isocyanate, and the molar ratio of an isocyanate group to a hydroxyl group is (1.01-5): 1; the hydroxyl-terminated polyurethane prepolymer comprises aliphatic or / and alicyclic isocyanate and polyol, and the molar ratio of an isocyanate group to a hydroxyl group is (0.5-0.99): 1. The preparation method comprises the following steps: firstly, synthesizing a hydroxyl-terminated polyurethane prepolymer, and then taking the hydroxyl-terminated polyurethane prepolymer as a main material to react with a small part of polyhydric alcohols and isocyanate. The polyurethane liquid adhesive synthesized by the two-step method has the performance advantages of high initial adhesion and low hardness, meets the process requirement of normal-temperature coating, can replace an adhesive film product and a hot melt adhesive product, and is applied to composite bonding of fabrics in the textile industry.

The invention discloses a long-acting durable waterproof paint with a self-repairing function and a synthesis method thereof, and relates to the technical field of waterproof paints.The long-acting durable waterproof paint is prepared from self-repairing matrix resin, a bi-component microcapsule self-repairing agent, a fluorine-silicon modified waterproof agent, a nano reinforcing filler and a weather-proof additive; through the synergistic effect of a dynamic disulfide bond and an interpenetrating network, the balance of molecular-level self-repairing and macroscopic mechanical properties is achieved, the efficiency bottleneck of single-component self-repairing is broken through through a two-component microcapsule system, a three-dimensional cross-linked structure of the fluorosilicone modifier endows the super-amphiphobic property, meanwhile, the hydrophobic and oleophobic properties are achieved, and the self-repairing effect is good. In addition, a multi-scale reinforcing system is constructed through the gradient nano filler, so that the crack growth needs to consume higher energy, and finally, the integrity of the microcapsule and the accurate control of the crosslinking degree of the resin are ensured through a specific curing process in the synthesis process, so that the waterproof coating finished product has excellent self-repairing capability, weather resistance and waterproof performance.

The invention belongs to the technical field of preparation of polyurethane adhesives, and relates to a serinol derivative damp-heat latent curing single-component polyurethane pouring sealant and a preparation method thereof. The problem that the bonding strength is affected due to embrittlement of a cured adhesive layer formed by a common technology is solved. Comprising a serinol derivative damp-heat latent curing agent, a polyurethane prepolymer, a cross-linking agent and a catalyst. The pouring sealant prepared by the invention is free of VOCs emission, safe, environment-friendly and convenient to use, can be continuously cured at room temperature by utilizing moisture in air after being pre-cured at 100 DEG C for 1 hour, is free of bubbles after being cured, is strong in adhesive strength and resistant to damp-heat aging, and can meet the pouring requirements in the fields of electronic component and power battery assembly and the like.

The invention discloses a single-component high-heat-resistance type epoxy adhesive and a preparation method of the single-component high-heat-resistance type epoxy adhesive. The adhesive is prepared from the following components in parts by weight: 30 to 40 parts of N, N-4, 4 '-diphenylmethane bismaleimide; 50 parts of bisphenol F epoxy resin; 36.47 parts of 4, 4 '-diaminodiphenyl sulfone; 20 to 40 phr of phenyl glycidyl ether; 1 to 2 phr of two terminal type epoxy silicone oil; 4 to 6 phr of hydroxyl-terminated polyether sulfone; 10 to 20 phr of boron nitride, the surface of which is modified by gamma-glycidyl ether oxypropyl trimethoxy silane; and 1 to 3 phr of an adhesion promoter. According to the adhesive disclosed by the invention, the heat resistance, the mechanical property, the dimensional stability, the process adaptability and the like are synergistically improved, the use requirements of an aviation structural part on long-term service at 150-180 DEG C and an electronic packaging device on the condition of short-time reflow soldering at about 200 DEG C can be met, and the reliability of the adhesive in a high-temperature environment is remarkably improved.

The invention provides a single-component modified silane adhesive as well as a preparation method and application thereof. The adhesive is prepared by mixing the following components: silane modified polyether resin, silane modified polymer resin, a plasticizer, a composite light stabilizer, a filler, a rheological additive, a water removal agent, a coupling agent and a catalyst, the silane modified polyether resin is silane-terminated resin prepared by a hydrosilylation method; the silane-modified polymer resin is a silane-terminated polymer resin containing a urethane bond. The adhesive is excellent in comprehensive performance, the tensile strength of a body is larger than 3 MPa, the elongation at break is larger than 450%, the adhesive is high in adhesion universality to metal base materials, PET films, ceramics, glass, wood floors, PVC, PC, ABS, wood-plastic composite materials and paint faces, the base materials do not need to be specially treated, the damage form is cohesive failure, and the adhesive has good adhesion strength, tear resistance and excellent temperature resistance and is suitable for being applied to the field of wood products. After aging at 120 DEG C for one week, the tensile strength of the body is greater than 3 MPa, the elongation at break is greater than 430%, and the surface layer can be coated after curing.

The disclosure refers to a waterborne coating composition. Disclosed is a one-component (1K) waterborne basecoat composition, comprising a resin component and a crosslinker, wherein the resin component and the crosslinker are crosslinkable by reaction at 80℃ within 22 min. Also disclosed in a coating system comprising the 1K waterborne basecoat composition. Further disclosed is a substrate coated with the 1K waterborne basecoat composition or the coating system.

A single-component photothermal dual-curing epoxy adhesive. The raw materials, calculated by weight, include: 100 parts of an acrylic / polyurethane dual-modified epoxy resin, 10-40 parts of a low-viscosity epoxy resin, 8-30 parts of an epoxy curing agent, 30-300 parts of an inorganic filler, 2-30 parts of a dispersant, and 0.25-5 parts of a photoinitiator. This adhesive exhibits excellent photocuring activity, high toughness, and excellent high- and low-temperature resistance, while maintaining other properties. The photoinitiator in this system participates in the curing reaction, avoiding the degradation of the adhesive's mechanical and bonding properties due to initiator molecular migration. The adhesive also offers a flexible curing process and minimal curing shrinkage, meeting the weather resistance requirements of semiconductor packaging. This makes it an industrially viable epoxy adhesive for semiconductor packaging.

The invention discloses a single-component direct coating type waterproof coating, and belongs to the technical field of waterproof coatings. The single-component direct coating type waterproof coating is prepared from the following components in parts by weight: 50 to 60 parts of modified acrylic emulsion, 25 to 35 parts of filler, 3 to 5 parts of coalescing agent, 0.5 to 2 parts of thickening agent, 0.5 to 1 part of defoaming agent and 20 to 30 parts of deionized water. Wherein the modified acrylic emulsion is a mixed emulsion formed by blending a melamine modified emulsion and a fluoroazine modified emulsion. The single-component direct coating type waterproof coating provided by the invention has relatively high weather resistance, water resistance and heat insulation.

The invention relates to a single-component epoxy adhesive as well as a preparation method and application thereof. The single-component epoxy adhesive is prepared from the following components in parts by weight: 35 to 45 parts of bisphenol epoxy resin, 5 to 20 parts of polyurethane modified epoxy resin, 20 to 30 parts of curing agent, 0.1 to 1 part of fluorocarbon surfactant and 0.1 to 1 part of flatting agent. According to the single-component epoxy adhesive provided by the invention, the leveling agent and the fluorocarbon surfactant are introduced into an epoxy resin system, so that the problem that an epoxy adhesive on the market at present is easy to diffuse and separate out is solved, and the single-component epoxy adhesive also has excellent adhesive property, ageing resistance and reliability.

To provide a liquid spray head that has a low environmental impact, is acid-resistant, and is highly reliable. [Solution] A liquid spray head that sprays liquid from a nozzle comprises a first member, a second member, and a cured product of a one-component adhesive that adheres the first member and the second member, wherein the one-component adhesive comprises a bisphenol-free epoxy resin, a curing agent containing an aromatic amine polymer, and an alkylphenol, wherein the alkylphenol is (a) an alkylphenol having at least one ethyl group, or (b) an alkylphenol having 1 to 3 carbon atoms in the alkyl group and at least one methyl group and one isopropyl group.

The present invention relates to a one-component thermosetting epoxy resin composition, comprising an epoxy resin A having on average more than one epoxide group per molecule, a latent hardener for epoxy resins, at least one heat-expandable microsphere HEM1 with a mean particle size D (0.5) between 2.5 – 22.5 μm and at least one heat-expandable microsphere HEM2 with a mean particle size D (0.5) between 25 - 75 μm. The epoxy resin adhesive is notable for a reduced difference in expansion volumes at 140 °C vs. 200 °C for 30 min, especially after storage at elevated temperatures and humidity.

The invention discloses a single-component isocyanate Pickering emulsion adhesive with long pot life as well as a preparation method and a use method thereof, and belongs to the technical field of high polymer materials / adhesives. The invention aims to solve the problems of low artificial board production efficiency, unstable board bonding performance and difficulty in direct application of a lignin body to a reverse isocyanate emulsion adhesive system due to short adhesive preparation pot life and dependence on environmental humidity in curing of an existing isocyanate adhesive. The single-component isocyanate Pickering emulsion adhesive with the long pot life is prepared from isocyanate, water, lignin sphere nanoparticles and a surfactant. The invention further discloses a preparation method of the single-component isocyanate Pickering emulsion adhesive with the long pot life. The preparation method comprises the following steps: 1, mixing; and 2, emulsifying. The application method comprises the following steps: coating the surface of a base material with the single-component isocyanate Pickering emulsion adhesive, and then assembling and hot-pressing. The invention is used for the single-component isocyanate Pickering emulsion adhesive with the long pot life as well as the preparation and the use of the single-component isocyanate Pickering emulsion adhesive.

The invention discloses non-dispersible cement for underwater repair of concrete. The non-dispersible cement is prepared from the following raw materials in parts by weight: 30-50 parts of Portland cement clinker powder; 20-40 parts of functional grouting material dry powder; 15 to 30 parts of anti-dispersion reinforcing powder; 2-5 parts of a composite admixture; after the non-dispersible cement is mixed with water, the ratio of the underwater compressive strength of the formed underwater pouring slurry to the onshore standard curing compressive strength is not less than 0.7; therefore, the anti-dispersing agent is compounded with the carrier in advance to prepare stable powder, and the problems that the anti-dispersing agent is prone to caking on site and uneven in dispersion are solved. The single-component dry powder material can be used only by adding water and stirring, the construction is simple and convenient, and the dependence on the process and the cost is reduced while the excellent underwater anti-dispersion property and the early strength property are ensured.

A conductive epoxy composition is disclosed comprising an epoxy resin, a low-viscosity hydrocarbon diluent, silver, and graphene. The one-part formulation provides enhanced electrical conductivity, mechanical strength, and process stability. The epoxy resin may include resorcinol diglycidyl ether, diglycidyl ether of Bisphenol A, or Bisphenol F. The hydrocarbon diluent may include glycidyl-ether-family resins having defined carbon-chain characteristics and molecular weights. Silver may be present in particulate, flake, nanoparticle, or coated forms at about 55-90 wt. %, while graphene may be present at 0.03-0.3 wt. % with dimensions of 1-10 μm and surface areas of 400-2,000 m2 / g. Optional additives include solvents, ionic liquids, latent curing agents, and strength enhancers to optimize curing and adhesion.

The invention relates to the technical field of waterproof coatings, and particularly discloses a superelastic single-component bio-based polyurethane waterproof coating with high bio-based content and a preparation method of the superelastic single-component bio-based polyurethane waterproof coating. The invention relates to a hyperelastic single-component bio-based polyurethane waterproof coating with high bio-based content. The waterproof coating comprises the following raw materials in parts by weight: 50-60 parts of bifunctional bio-based polyol, 3-8 parts of a bio-based chain extender, 20-35 parts of a bio-based plasticizer, 10-15 parts of isocyanate and 2-4 parts of a latent curing agent. The bio-based polyurethane waterproof coating provided by the invention adopts a single-component design, is ready to use after a barrel is opened, and is simple and convenient to construct; performing moisture curing at room temperature to form a seamless elastic coating film; the coating has excellent low-temperature flexibility, adhesive force, water resistance and aging resistance, all the components are clear in function, the synergistic effect mechanism is clear, the preparation process is simple, and industrial production is easy.

The toothbrush according to the invention is designed to be elastic and reversibly deflectable in the area of ​​the finger groove (Fm). If the maximum permissible cleaning force on the teeth and gums is exceeded, small but perceptible movements occur between the individual transverse ribs (Qs) in the area of ​​the finger groove (Fm). These movements are easily felt by the user's fingers resting on them, thus allowing the cleaning force to be constantly monitored, controlled, and limited. Furthermore, due to the coordinated design of the transverse ribs (Qs) (essentially in the form of an irregular truncated pyramid) and the essentially trough-shaped transverse recesses (Qa), there is no risk of pinching or chafing of the skin of the fingers, even when the recommended cleaning force is significantly exceeded.and wherein the surface and volumetric contact between all features in the area of ​​the finger groove (Fm) and the fingers resting thereon is consistently / permanently good, comfortable, stable, non-slip and secure, regardless of which specific tooth area in which specific quadrant of the dentition is being brushed or cleaned. The toothbrush according to the invention, in particular a mechanical manual toothbrush, can be manufactured to a high standard and routinely using both single-component and multi-component technologies (with the exception of bristles).

The invention relates to a single-component self-crosslinking water-based safety marking coating and a preparation method thereof.The single-component self-crosslinking water-based safety marking coating is mainly prepared from, by weight, 35-45 parts of film forming matter, 2-4 parts of coalescing agent, 30-35 parts of glass beads, 0-5 parts of filler, 3-15 parts of pigment, 1 part of dispersing agent, 0.1-0.2 part of anti-settling agent, 0.5-1 part of anti-freezing agent, 0.1-0.3 part of flatting agent and 0.1-0.5 part of defoaming agent. 0.1-1 part of a thickening agent, 1-2 parts of a pH value regulator and 4-10 parts of deionized water. The invention also comprises a preparation method of the single-component self-crosslinking water-based safety marking paint. The single-component self-crosslinking water-based safety marking coating is safe, environment-friendly and convenient to construct, has the film coating performance which can be achieved by a crosslinking film-forming type double-component coating, is outstanding in various resistance, and can be normally used for more than 5 years after being brushed outdoors.

The invention provides a single-component cleaning agent composition and a preparation method and application thereof.The single-component cleaning agent composition is prepared from, by weight, 0.5-10 parts of inorganic alkali, 0.5-8 parts of alkali-soluble wetting agent, 0.1-1 part of polymeric dispersant, 1-5 parts of oxidizing agent, 1-6 parts of pH buffering agent and 80-100 parts of water; in a liquid phase environment with a pH value of 10-12 and a temperature of 25 + / -2 DEG C, the solubility of the alkali-soluble wetting agent is 400-1000 g / L. The formula of the single-component cleaning agent is finely designed, and through reasonable combination and proportion control of multiple components, the obtained single-component cleaning agent composition can provide an efficient cleaning effect for silicon wafers under the conditions of stable pH value and temperature.

The utility model discloses a high-applicability coating hanger for coating the surface of an automobile hub, and particularly relates to the technical field of hub coating hangers, the high-applicability coating hanger comprises a supporting top plate, a hanging seat matched with a hook for use is mounted in the middle of the upper surface of the supporting top plate, two through grooves are formed in the upper surface of the supporting top plate, and the two through grooves are communicated with the hanging seat. And a mounting vertical rod is inserted into each through groove. According to the utility model, the rapid insertion assembly is arranged, the end parts of the insertion rods are adjacent to the interiors of the through grooves, the two mounting vertical rods are sequentially mounted into the corresponding through grooves, then the pushing seat is pushed towards one side by the pushing cylinder to slide on the limiting rod, and the insertion rods on the pushing seat are driven to penetrate through the hole grooves and then enter the mounting insertion holes; the mounting vertical rods and the supporting top plate are quickly connected, an assembled structure is designed, different types of mounting vertical rods are selected according to different use requirements, the hanging requirement of the automobile hub is met, and when a single part is damaged, replacement and maintenance are easy.

The invention discloses a modified polyurethane flexibilizer, a high-toughness and high-stripping modified epoxy resin composition and a preparation method thereof. The composition is prepared from the following components in parts by weight: 15 to 30 parts of modified polyurethane flexibilizer, 20 to 45 parts of epoxy resin, 8 to 20 parts of core-shell flexibilizer, 8 to 20 parts of filler, 4 to 10 parts of curing agent and 0.2 to 1.5 parts of coupling agent. Wherein the modified polyurethane toughening agent is prepared from the following raw materials in parts by weight: 60 to 90 parts of reactive polyol compound, 6 to 15 parts of polyisocyanate, 4 to 15 parts of micromolecular acrylate containing reactive hydrogen, 0.2 to 3 parts of chain extender and 0.02 to 0.2 part of catalyst. The prepared single-component epoxy composition has the properties of high toughness, high stripping performance, low-temperature curing, high strength retention rate after high and low temperature circulation and the like, and is suitable for being applied to component assembly in the fields of rail transit, aviation and the like.

The invention discloses a tackifier, single-component thermocuring silicone rubber and a preparation method of the single-component thermocuring silicone rubber. The tackifier is obtained by reacting end-side hydrogen-containing silicone oil, dimethyl methoxy vinyl silane and allyl glycidyl ether under the catalytic action of a platinum catalyst. The tackifier is used for preparing the addition type organic silicon rubber, so that the anti-adhesion phenomenon of the organic silicon rubber to a back cover plate can be improved while effective adhesion to a metal substrate can be realized. Furthermore, the novel tackifier prepared by the invention, double-end vinyl silicone oil, fumed silica, hydrogen-containing silicone oil, branched hydrogen-containing silicone oil and the like are used as raw materials, and all the components are coordinated and matched, so that the prepared single-component thermocuring silicone rubber not only has excellent bonding performance on a metal base material, but also has high temperature resistance and high temperature resistance. And meanwhile, adhesion and adhesion to a reverse contact substrate after long-time high-temperature baking after compression are avoided, and the adhesive has excellent compression resistance and anti-adhesion property and relatively low compression permanent deformation.

The invention relates to the technical field of waterproof coatings, in particular to a photo-initiation cold coating type non-curing rubber asphalt waterproof coating and a preparation method thereof, and the photo-initiation cold coating type non-curing rubber asphalt waterproof coating comprises an asphalt-based main material, a photo-curing agent and epoxy resin; the light curing agent is composed of a photoinitiator, a rubber monomer and a hindered amine light stabilizer, and the photoinitiator comprises a benzothiophene compound; the waterproof coating is in a single-component paste state, can be constructed at normal temperature, and is cured to form a waterproof coating film after being irradiated by ultraviolet rays; according to the technical scheme, a cross-linking system of the light curing agent and the epoxy resin not only keeps the creep deformation and self-healing characteristics of non-cured rubber asphalt, but also improves the heat resistance, acid, alkali and salt resistance and bonding performance of a coating film through a three-dimensional network cross-linking structure, and it is ensured that a waterproof layer adapts to building structure deformation and severe environments for a long time.

The invention provides a one-component epoxy structural adhesive and a preparation method and application thereof. The one-component epoxy structural adhesive comprises specific portions of bisphenol A epoxy resin, polyurethane modified epoxy resin, core-shell rubber toughening agent, reactive diluent, dicyandiamide, hydrazide complex, imidazole adduct and urea-based accelerator. The two epoxy resins are selected for matching, and two curing agents, dicyandiamide and hydrazide complex, are used for coordination, and imidazole adduct and urea-based accelerator are used for assistance, so that the one-component epoxy structural adhesive not only has a lower curing temperature, but also has excellent storage stability, can be stably stored at room temperature for up to 6 months, and the cured product obtained after curing has high strength and high toughness.

The invention relates to the technical field of conductive adhesives, in particular to an antioxidant single-component copper conductive adhesive and preparation and application thereof. The invention provides an antioxidant single-component copper conductive adhesive. The antioxidant single-component copper conductive adhesive comprises the following raw materials: 7-10 parts of epoxy resin, 7-15 parts of a curing agent, 1-7 parts of an accelerant, 1-5 parts of a coupling agent, 0.1-2 parts of a defoaming agent and 70-85 parts of antioxidant copper powder. Compared with the prior art, the single-component copper conductive adhesive provided by the invention has better oxidation resistance on the premise of not influencing the conductivity; the conductive silver adhesive can be rapidly cured in a short time under medium and high temperature conditions, can greatly reduce the cost compared with a conductive silver adhesive, and has excellent conductivity and bonding performance.

The invention firstly provides application of modified single-component polyurea as a 3D printing hot bed coating. The modified single-component polyurea is used for the 3D printing hot bed coating for the first time, adhesion and fixation of a printed product at low temperature are achieved, energy consumption is reduced, and meanwhile the service life of the coating is prolonged. On the basis, the invention further provides the heat-resistant modified single-component polyurea. According to the heat-resistant modified single-component polyurea, on the basis of the modified single-component polyurea, a hollow zigzag composite filler independently researched and developed by the inventor is added; the hollow zigzag composite filler is a hollow zigzag structure Cu-MOF (at) PA (at) NiMoO4 which is formed by etching a Cu-MOF three-dimensional frame structure into a hollow structure by phytic acid and bridging NiMoO4 through phytic acid. The molar ratio of the Cu-MOF to the NiMoO4 to the phytic acid in the composite filler is (25 to 50): (5 to 10): 1. Compared with modified single-component polyurea, the heat-resistant modified single-component polyurea has the advantages that the heat resistance of a hot bed coating is remarkably improved, and release of harmful gas is effectively reduced based on good adsorption performance of the heat-resistant modified single-component polyurea.