35results about How to "Strong surface binding" patented technology

The invention provides a method for restraining a cracking furnace pipe from coking. The method comprises the following steps: pre-treating the inner surface of the cracking furnace pipe before a coking restraining coating of the inner surface of the cracking furnace pipe is coated; coating a coking resistant coating on the inner surface of the cracking furnace pipe; adding a coking inhibitor into cracking raw materials. According to the invention, the coke formation is reduced through the recombination of the coking resistant technology, so that the hydrocarbon high-temperature cracking coking rate is greatly reduced, and the use cycle of hydrocarbon cracking equipment is prolonged.

The invention provides a POSS (polyhedral oligomeric silsesquioxanes) modified high barrier three-layer co-extrusion packaging film and a preparation method thereof, relating to a packaging film. The invention provides a polyhedral oligomeric silsesquioxanes modified high barrier three-layer co-extrusion packaging film with better barrier property, mechanical property, heat resistance and transparency and a preparation method thereof. The film comprises an outer layer, an intermediate layer and an inner layer, wherein the outer layer of the film comprises the components of low-density polyethylene, linear low-density polyethylene and a polyhedral oligomeric silsesquioxanes modifier, the intermediate layer of the film comprises the components of ethylene-vinyl alcohol copolymer and compatibilizing resins, and the inner layer of the film comprises the components of LDPE, LLDPE and an opening agent. Firstly, the polyhedral oligomeric silsesquioxanes modifier is prepared, then the outer layer film master batch containing the polyhedral oligomeric silsesquioxanes modifier is prepared, and finally the polyhedral oligomeric silsesquioxanes modified high barrier three-layer co-extrusion packaging film is prepared.

The invention discloses a forming method of a thermoplastic continuous fiber-reinforced composite material piece. The forming method comprises the steps that (1) thermoplastic continuous fiber prepregtape is subjected to overlaying and mould pressing, and an organic composite plate is obtained; (2) the organic composite plate obtained in the step (1) is subjected to two-dimensional cutting, and a2D organic plate is obtained; (3) the 2D organic plate obtained in the step (2) is heated, softened and then moved into a forming mould; and (4) mould assembling and micro-foam injection molding areconducted, and after cooling and mould opening, the thermoplastic continuous fiber-reinforced composite material piece is obtained. According to the forming method, the thermoplastic continuous fibercomposite material and the micro-foam injection molding material are combined, integrated forming is achieved through mould pressing-injection moulding, materials, moulds and the forming technique arecooperated, and the prepared composite material piece is smooth and even in surface, free of reduction and low in warping angle and is suitable for subsequent spraying and coating. The product rigidity is high, the weight is low, and the piece is suitable for preparation of television and computer shells as well as automobile accessory light-weight outer parts.

The invention relates to a preparation method for a flame-retardant heat-resistant antenna radome base material. The preparation method comprises the following steps: preparing a filler with the average grain size of 180 nanometers by taking nano silicon dioxide foam, dodecylbenzene sulfonic acid, bismuth nitrate pentahydrate and methyl trichlorosilane as raw materials; preparing a resin prepolymer by taking DOPO, a bisphenol A cyanate ester monomer, a phenolic compound, 1,3,5-triglycidyl -S-triazinetrione, bisphenol A epoxy resin and diaminodiphenyl ether as raw materials; mixing the resin prepolymer with maleic anhydride; then sequentially adding poly(methylsilsesquioxane) and the filler; then adding isomeric undecanol polyoxyethylene ether phosphate potassium salt and glass beads to obtain a composite system; then injecting the composite system into a die coated with a release agent, carrying out mold pressing under a vacuum condition, and finally turning off a power supply and naturally cooling; and releasing the die to obtain the flame-retardant heat-resistant antenna radome base material. The flame-retardant heat-resistant antenna radome base material has excellent flame retardance and heat resistance, and the development application of the flame-retardant heat-resistant antenna radome base material is satisfied.

The invention discloses a high-toughness wear-resisting cable material and belongs to the technical field of wires and cables. According to the invention, biogas slurry is firstly treated and then shrimp shells are treated in the manner of mixed fermentation, so that chitin is differentiated and degraded, active ingredients can be generated, cross-linking action can be enhanced and overall wear-resisting property can be promoted; aramid fiber pulp has a fluff structure, has an ultra-large contact area with a resin component and is capable of promoting interaction of inner components of the system, improving shock resistance, promoting toughness, increasing degree of orientation, increasing surface roughness, promoting compatibility thereof with a modified resin component and jointly promoting toughness and wearing resistance; due to the addition of castor oil, vibration strength of covalent bonds in the resin component can be reduced, tensile strength can be effectively promoted, and the castor oil and the compound modified resin component can be combined into an interwound firm three-dimensional network so as to promote the inner mechanical properties. The high-toughness wear-resisting cable material is capable of solving the problems of inferior wear-resisting property, low tensile strength, low toughness and inconvenience in processing of the present common cable material.

The invention discloses a vertical casting and extruding composite preparation device and method of coating structure metal composite material. The device comprises a starting material blocking block,an extruding table, an extrusion female die, an extrusion male die, a casting female die and an extrusion composite cylinder, a plurality of connecting columns are arranged at the bottom of the extrusion table, the extrusion female die and the casting female die is arranged on the extrusion table, the extrusion male die is arranged in the extrusion female die, the extrusion table is provided witha discharge hole and a casting feed hole, the discharge hole corresponds to the discharge hole of the extrusion female die, the discharging hole of the casting female die is connected with the casting feeding hole, the outlet of the casting feeding hole is communicated with the discharging hole, the extruding composite cylinder is arranged at the bottom of the extruding table, the feeding port ofthe extrusion composite cylinder is communicated with the discharge hole, and a starting material blocking block is arranged at the discharge port at the bottom of the extrusion composite cylinder. The blank defect is eliminated by extruding the inner-layer blank, meanwhile, a new metal surface is generated, and the composite material which is high in surface binding force and excellent in mechanical property is obtained through subsequent extrusion composite forming.

The invention provides an antibacterial coating with pH monitoring function. The antibacterial coating comprises a hydrogen abstraction type quaternary ammonium salt pyranine compound, which is obtained by reaction of trisodium 8-hydroxy-1, 3, 6-pyrene trisulfonate with the hydrogen abstraction type quaternary ammonium salt; and the hydrogen abstraction type quaternary ammonium salt has a structure shown as formula (I). A benzophenone functional group in the hydrogen abstraction type quaternary ammonium salt in the coating can undergo chemical bonding with a substrate material molecule, Pyranine and a hydrophobic alkyl chain, the inside of the coating undergoes mutual cross-linking to form a three-dimensional network structure, the self-stability of the coating can be improved, meanwhile,the coating and a coated substrate realize chemical bond cross-linking, so that the stability of the coating and the coated substrate is greatly improved, and the pH monitoring and antibacterial effect can be more durable. The method provided by the invention adopts an ultraviolet curing mode to form the coating, and has the characteristics of simple process, easy operation, and high feasibility.

The invention relates to the technical field of water-borne gloss oil, and particularly relates to water-borne wood lacquer color-repairing gloss oil, as well as a preparation method and an application thereof. The gloss oil is prepared from the following raw materials: water-soluble polyurethane resin, water-soluble acrylic resin, dipropylene glycol methyl ether, polyethylene imine, a water-bornedefoaming agent, a water-borne flattening agent, ethanol, a dispersant and deionized water. The preparation method comprises the following steps: a, mixing the components under a norm-temperature condition, and stirring for 20-25 minutes; and b, filtering with a filter screen having 300 meshes after uniform stirring. The water-borne wood lacquer color-repairing gloss oil is prepared by using transparent resin as components, and is easy in color matching in the using process; the polyethylene imine synthesized with the dipropylene glycol methyl ether in the raw materials can be used for effectively improving the adhesion performance of the water-borne wood lacquer color-repairing gloss oil, has strong binding force with a wood surface; and the polyethylene imine can react and bind with tanning and other acid substances in a wood material, so that the problems of discoloring and blackening of woods can be effectively relieved.

The invention relates to an electronic material and a preparation method thereof. The preparation method comprises the following steps: mesoporous silica is modified firstly, then epoxy with monofunctional groups and epoxy with bifunctional groups are prepared, and a glue solution is obtained by mixing; the glue solution, a reinforcing material and metal foil are subjected to hot-press molding, and the electronic material can be obtained. The electronic material has the excellent flame retardance and heat resistance, and requirements for development and application of the electronic material are met.

The invention relates to the technical field of new material processing, and discloses a method for improving wear resistance of aluminum alloy electric power fittings. The method comprises the following steps: rapidly melting prepared ball-milled powder by using a plasma spraying technology to further form atomized molecules, spraying the atomized molecules to the surfaces of pretreated fittings,and rapidly condensing the atomized molecules to obtain a wear-resistant coating which plays an inert wear-resistant and corrosion-resistant barrier. The coating has a strong binding force with the surfaces of the aluminum alloy fittings, and a film layer is compact, has high hardness, and can withstand the impact of high-strength external force, so the surface performance of the fittings is comprehensively improved, and the safety and the service life of the electric power fittings are improved. The method can significantly improve the wear resistance of the aluminum alloy electric power fittings, solves the problem of no wear resistance of existing aluminum alloy electric power fittings, improves the surface strength and toughness, has stable chemical and mechanical properties, expandsthe application occasions, and significantly improves the economic and safety benefits.

The invention relates to a preparation method of a modified epoxy resin material. The preparation method comprises the following steps: adding modified silicon dioxide into a bifunctional epoxy system, adding a mono-functional epoxy system and a nanometer polytetrafluoroethylene particle to obtain a glue solution, regulating the solid content of the glue solution to 50% through propylene glycol methyl ether acetate, dipping a glass cloth into the glue solution, heating, and drying to obtain the modified epoxy resin material, and the modified epoxy resin material has an excellent flame retardant property and an excellent heat resisting property, and the abrasive resistance is particularly prominent.

The invention discloses an energy-saving and environment-friendly coating method for a medicine coating on an implantable medical apparatus and belongs to the technical field of energy saving and environmental friendliness. The method specifically comprises the following steps that S1, the medical apparatus is soaked in a cleaning agent to remove oil stains, rust spots, oxidized scales and acid-base residues on the surface of the medical apparatus; S2, a chemical is heated and evaporated under the vacuum condition so that a large number of atoms and molecules in the chemical can be gasified and sublimated; S3, the medical apparatus is baked, and is put in the chemical sublimating atmosphere for ion bombardment after the surface temperature of the medical apparatus rises; S4, the atoms andthe molecules in the chemical settle on the surface of the medical apparatus to form the medicine coating; and S5, afterwards the medicine coating is cooled to be solidified. The medicine coating hashigh bonding force with the surface of a medical apparatus body, is uniform and compact, has a good winding plating property under the negative bias action, can reduce the rejection reaction of organisms to implants, and has high abrasion resistance at the same time, and the service life of the implants is prolonged.

The invention relates to a preparation method of a pouring material with a high dielectric property. The preparation method comprises steps as follows: high dielectric filler is added to a bifunctional epoxy system and stirred at 130 DEG C for 20 min, a monofunctional epoxy system and nano alumina particles are added at the temperature of 95 DEG C, the mixture is stirred for 130 min, and a glue liquor is obtained; the glue liquor is subjected to vacuum defoamation and added to a mold, and the pouring material with the high dielectric property is obtained after hot-pressing curing. The pouringmaterial has excellent flame retardance and heat resistance and particularly has the outstanding dielectric constant.

The invention relates to a modified epoxy resin system; preparation comprises the steps: adding modified silica into a bifunctional epoxy system, and adding a monofunctional epoxy system and nano-polytetrafluoroethylene particles, to obtain a glue solution; and adjusting the solid content of the glue solution to 50% by propylene glycol methyl ether acetate to obtain the modified epoxy resin system. A board prepared based on the modified epoxy resin system has excellent flame retardancy and heat resistance, especially prominent wear resistance.

The invention discloses a device and a method for preparing a metal composite material of a coating structure through bidirectional extrusion, and belongs to the technical field of metal composite material machining. The device comprises a fixed support, a combined extrusion die, an extrusion male die, an extrusion container, a forward extrusion device and a backward extrusion device, the combined extrusion die is arranged between the forward extrusion device and the backward extrusion device, a mounting base sleeves the outer side of the combined extrusion die and is fixedly connected with the fixed support, a forward extrusion female die is arranged at one end in the combined extrusion die, a backward extrusion female die is arranged at the other end, one end of the extrusion male die is matched with the forward extrusion female die, the other end of the extrusion male die is matched with the forward extrusion device, one end of the extrusion cylinder is matched with the backward extrusion female die, and the other end of the extrusion cylinder is matched with the backward extrusion device. According to the device and the method for preparing the metal composite material of the coating structure through bidirectional extrusion, blank defects are eliminated by extruding an inner-layer blank, a new metal surface is generated, and the composite material with high surface binding force and excellent material mechanical property is obtained through subsequent extrusion composite forming.

The invention relates to high dielectric property copper-clad board glue and a preparation method thereof. The preparation method comprises adding methyl butynol into diglycidyl phthalate, stirring the mixture at 75 DEG C for 5 minutes, then adding 1, 8-octanedithiol and N, N-dicyclohexylcarbodiimide into the mixture, stirring the mixture for 5 minutes, then adding a modified silica system and nano-hollow alumina into the mixture, stirring the mixture for 15 minutes, finally, adding a modified epoxy system into the mixture, stirring the mixture at 125 DEG C for 2 hours, adding a butanone/PMA mixed solution into the mixture to obtain glue, dipping a 1080 glass cloth into the glue to obtain a prepreg, heating to dry the prepreg and preparing the modified epoxy resin-based copper clad board.The modified epoxy resin-based copper clad board has excellent dielectric properties and heat resistance and meets the development and application requirements of the modified epoxy resin-based copper-clad board.

The invention relates to a modified epoxy resin-based copper clad laminate and a preparation method thereof. The preparation method comprises: adding a modified silica foam system into a bifunctionalepoxy system, stirring for 30 min at a temperature of 120 DEG C, adding a monofunctional epoxy system and hollow nanometer alumina at a temperature of 95-105 DEG C, and stirring for 20 min to obtain aglue solution; and carrying out hot pressing molding on the glue solution, a reinforcing material and metal foil to obtain a modified epoxy resin-based copper clad laminate, wherein the obtained modified epoxy resin-based copper clad laminate has excellent flame retardancy and excellent heat resistance, such that the development and application of modified epoxy resin-based copper clad laminatescan be met.

The invention relates to a semi-curing sheet for high dielectric property copper clad laminate and preparation method thereof. The method includes the following steps of: adding methyl butynol2-methylbutyraldehyde into diglycidyl phthalate, stirring at 75 DEG C for 5 minutes, then adding 1, 8-octanedithiol, N, N-dicyclohexylcarbodiimide and stirring for 5 minutes, then adding modified silicon dioxide system, nano hollow alumina and stirring for 15 minutes, finally adding modified epoxy system, stirring at 125 DEG C for 2 hours to obtain the glue solution; adjusting the solid content of the glue solution to be 65% by using butanone/PMA mixture, then dipping the reinforced material 1080 glass cloth into the glue solution to obtain the prepreg. The prepreg is heated and dried to obtain thesemi-curing sheet for the high dielectric property copper clad laminate. The modified epoxy resin-based copper clad laminate is prepared, has excellent dielectric property and heat resistance, and meets the development and application of the modified epoxy resin-based copper clad plate.

The invention relates to a preparation method of a heat-resistant composite magnetic material. The method comprises the following steps: mixing a phenolic compound with a bisphenol A cyanate ester monomer, and adding endo-methylene tetrahydro-biphenyl dimethylbenzene anhydride, pentaerythritol tetraacrylate and bisphenol A epoxy resin to obtain a resin prepolymer; mixing the resin prepolymer with methylene bis(dialkylthiocarbamate), a modified magnetic filler and a heterogeneous undecanol polyoxyethylene ether phosphate kalium salt to obtain a composite system; injecting the composite system into a mold coated with a release agent, and carrying out mold pressing in a vacuum condition; and finally turning off a power supply, naturally cooling the product and demolding the product to obtain the heat-resistant composite magnetic material. The heat-resistant composite magnetic material has excellent flame retardant property and heat resistance, and meets development and application of the heat-resistant composite magnetic material.