13results about How to "Solve easy peeling" patented technology

The invention relates to the field of waterproof coatings, and discloses a tunnel macromolecular self-cleaning special waterproof coating which comprises polyurethane resin, epoxy resin, fluorosilicone resin, titanium dioxide nanoparticles, zinc oxide nanoparticles, aluminum triphosphate, silicon dioxide nanoparticles, aluminum oxide microparticles, graphene nanosheets, a flexibilizer, a curing accelerator and a solvent. According to the coating, collaborative optimization of functions of all layers is achieved through a multi-layer composite structure, the bottom layer waterproof layer provides efficient waterproofness and weather resistance, the middle reinforcing layer greatly improves the mechanical strength and wear resistance of the coating, the surface layer self-cleaning layer adopts a fluorosilicone resin matrix and introduces super-hydrophobic nano-particles, the surface is endowed with an excellent self-cleaning function, and the self-cleaning effect is good. Dirt adhesion is prevented; and automatic cleaning is facilitated. The coating effectively solves the common problems of leakage, pollution accumulation, abrasion and peeling in a tunnel environment, the protection performance of a coating is remarkably improved, the service life of the coating is remarkably prolonged, and an efficient and lasting protection solution is provided for building structures such as tunnels and subways.

The invention discloses a gradient composite reinforced anti-corrosion treatment method for a metal alloy guardrail, and belongs to the technical field of metal material surface treatment. The method comprises the following steps: carrying out ultrasonic cavitation micro-etching and electrochemical gradient activation pretreatment on the surface of a substrate; a metal ceramic composite layer containing a non-oxide ceramic reinforced phase is generated on the surface in situ through a micro-arc oxidation-chemical vapor deposition coupling process, and a component transition layer is formed with the assistance of vacuum gradient diffusion alloying treatment; and finally, coating an intelligent resin coating containing a corrosion inhibitor capsule and a corrosion indicator, and constructing a super-hydrophobic surface. By constructing a multi-layer composite protection system of the gradient diffusion layer / the metal ceramic layer / the intelligent coating / the super-hydrophobic layer, the anti-corrosion performance is remarkably improved, and the obtained guardrail has excellent bonding strength, wear resistance and long-acting anti-corrosion service life, has the intelligent functions of damage self-repairing and corrosion state visualization and is suitable for popularization and application. The method is especially suitable for harsh service environments.

This utility model relates to the field of anti-corrosion fluid distributor technology. The anti-corrosion fluid distributor device for a valley-electricity thermal storage heating system includes a distributor body, reinforcing ribs, an anti-corrosion mechanism, and a monitoring module. This utility model has the following advantages: The nanomaterial layer of this application adopts a multi-layer structure of "epoxy primer layer + nano-ceramic intermediate layer + polyurethane top layer," achieving multi-layer composite protection and solving the problem of easy peeling of traditional epoxy resin coatings at high temperatures. The corrosive elastic metal layer (such as zinc, aluminum, and other reactive metals) embedded inside the retention pipe can preferentially react with corrosive ions in the fluid through the principle of electrochemical corrosion, consuming itself to protect the metal of the distributor body. Simultaneously, the elastic material can adapt to fluid impact and temperature deformation, preventing cracking of the protective layer.

The invention provides a cloth pattern printing device based on inkjet transfer printing. The invention discloses a cloth pattern printing device based on inkjet transfer printing. The cloth pattern printing device comprises two machine frame inner plates which are vertically arranged and mutually symmetrical. According to the cloth pattern printing device based on jet drawing transfer printing, by arranging the transfer printing cylinder, when the device is used, cloth raw materials and thermal dye sublimation transfer printing paper printed with patterns are fed into the device together, and the cloth and the thermal dye sublimation transfer printing paper are heated and extruded through the transfer printing cylinder; patterns on the transfer paper are transferred to the surface of the cloth in a thermal sublimation mode, the patterns transferred in the mode are high in definition, fine, extremely high in color rendition degree and saturation degree and capable of perfectly presenting fine effects such as gradual change and complex images, dye and fibers are integrated, a surface glue layer does not exist, and the fabric is not prone to falling off. The original soft hand feeling and good air permeability of the cloth can be completely reserved, and meanwhile the finished product is resistant to washing, friction and solarization, not prone to fading, cracking or peeling and outstanding in durability.

The invention discloses acrylic acid adsorption foam. The surface of one side of the acrylic acid adsorption foam is provided with a semi-open pore structure. The preparation method of the acrylic acid adsorption foam comprises the steps that a foaming mixed glue solution containing an acrylic resin solution serves as a foaming base material, the adsorption foam is prepared through a chemical foaming method, and before chemical foaming, the preparation method further comprises the step that a peelable protective film is coated with the foaming mixed glue solution. The acrylic acid adsorption foam adhesive tape prepared from the acrylic acid adsorption foam has the advantages of providing good impact resistance and buffering performance and being capable of being repeatedly used while meeting the requirements for temporary fixation and easy stripping of a physical adsorption function.

The invention discloses a capillary crystalline waterproof agent and a preparation method thereof, and relates to the technical field of concrete additives. The capillary crystalline waterproof agent comprises a base material and auxiliaries, the base material comprises sodium silicate, lithium silicate, copper silicate, ferrous sulfate, potassium bichromate and water, and the auxiliaries comprise graphene slurry, lauryl sodium sulfate, sodium toluate, anhydrous sodium citrate, lauryl alcohol polyoxyethylene ether sodium sulfate, coconut oil, sodium chloride and calcium chloride. The capillary crystalline waterproof agent is high in permeability, high in water pressure resistance and not prone to peeling and falling off.

This invention belongs to the field of coating technology and provides a wear-resistant coating for drone shells and its preparation method. The raw materials of the coating include: hydrogenated bisphenol A epoxy resin, vinyl-terminated fluorinated polybutadiene resin, core-shell powder, aluminum borate nanofibers, polyetherimide micro powder, wear-resistant additives, silane coupling agent KH-792, light stabilizer, leveling agent and environmentally friendly solvent. The preparation method includes: (1) mixing hydrogenated bisphenol A epoxy resin and vinyl-terminated fluorinated polybutadiene resin to form a resin matrix; (2) first adding core-shell powder and aluminum borate nanofibers to the resin matrix for dispersion; after cooling to 25-30℃, adding other raw materials, stirring and defoaming to obtain the finished product. This coating has high wear resistance, wind and sand erosion resistance, low temperature crack resistance, microcrack self-repair, strong UV aging resistance and high adhesion, which can significantly improve the long-term service stability and service life of drone shells in complex and harsh environments such as high altitude, wind and sand, high and low temperature alternation, and strong ultraviolet radiation.

The novel silver-plated ice-making ice tray with the red copper cavity comprises an ice tray body, a sand blasting layer is arranged on the surface of the ice tray body, a first alkaline copper layer is arranged on the outer side of the sand blasting layer, a second bright copper plating layer is arranged on the outer side of the first alkaline copper layer, and a first pre-silver layer is arranged on the outer side of the second bright copper plating layer. A second thick silver layer is arranged on the outer side of the first pre-silver layer, and a protective layer is arranged on the outer side of the second thick silver layer. The ice tray body comprises a base material and a welding seam at the connecting position of the base material, and the welding seam is welded through metal tin. And a sand blasting layer is arranged on the welding surface of the welding seam. According to the cold ice tray, the fusion degree between the plating layers and the fusion degree between the plating layers and the ice tray body are high, the bite force is strong, the plating layers are not prone to peeling in the refrigeration environment, and the food safety of the refrigeration ice tray is improved while the heat conductivity of the refrigeration ice tray is guaranteed. The problems that in the refrigeration environment, a traditional electroplated layer is prone to falling off after being used for a long time, poisoning is caused by dissolution and permeation of copper ions possibly, and food safety detection is difficult to pass are solved.

The invention discloses a high-transparency and high-barrier paper-based packaging material based on in-situ layered construction and a preparation method of the high-transparency and high-barrier paper-based packaging material, and belongs to the technical field of pulping, papermaking and paper-based functional materials. The method mainly comprises the following steps: 1, preparing carboxymethyl fibers; 2, preparing the TEMPO oxidized nano cellulose; 3, preparing raw paper of the high-transparency fiber supporting layer; 4, preparing a hydrogel precursor solution; 5, preparing a mixed coagulating bath; and 6, preparing the high-transparency and high-barrier paper-based packaging material. The invention provides a technical concept of'in-situ layered construction ', a high-transparency and high-strength fiber supporting layer is constructed through plant fibers, CM-fibers and TEMPO oxidized nanofibers, and the high-transparency and high-strength fiber supporting layer is prepared by utilizing the principles of ionic crosslinking and solvent exchange. A hydrogel optical interface layer for filling matrix pores and a compact surface barrier functional film layer are synchronously constructed on the surface of the fiber supporting layer, and finally the high-transparency and high-barrier paper-based packaging material constructed based on in-situ layering is prepared.

Provided are a silver powder and a method of producing the same. The method of producing the silver powder includes a first surface smoothing step of causing fine silver particles having internal voids to mechanically collide with one another; a fine powder removal step of dispersing fine silver particles present after the first surface smoothing step using high-pressure airflow while removing fine powder; and a second surface smoothing step of causing fine silver particles present after the fine powder removal step to mechanically collide with one another.

The invention belongs to the technical field of metallurgy, and particularly relates to a magnetron sputtering preparation method of a diamond-like composite coating on the surface of a crystallizer copper plate. Comprising the following steps: S1, pretreatment of a copper plate: sequentially carrying out surface cleaning, grinding and polishing and acid etching treatment on the crystallizer copper plate; s2, a transition layer is deposited, specifically, a chromium transition layer is deposited on the surface of the pretreated copper plate through the non-equilibrium plasma magnetron sputtering technology; s3, composite coating deposition: depositing a diamond-like coating on the surface of the transition layer to form a composite coating; and S4, post-treatment: carrying out annealing and surface polishing treatment on the crystallizer copper plate deposited with the composite coating. The composite coating has the comprehensive performance of high hardness, low friction, high wear resistance and high thermal conductivity, and the preparation method is controllable in parameter, good in repeatability, uniform in coating thickness and suitable for large-scale industrial production.

The utility model discloses a multilayer composite brazing aluminum alloy cellular board, which relates to the technical field of cellular boards and comprises a cellular board core, a sound insulation layer is mounted on the inner wall of the cellular board core, a heat insulation layer is mounted on the outer wall of the cellular board core, and a fireproof layer is mounted on the outer wall of the heat insulation layer. The honeycomb plate core has the advantages of being light in weight and good in heat insulation, the double-layer honeycomb plate core has higher structural compression resistance and bending resistance, when the device is used, the honeycomb plate core and the sound insulation layer are connected in a brazing mode, and compared with a traditional bonding mode, the honeycomb plate core and the sound insulation layer are higher in stability and not prone to falling off and peeling. The overall performance of the plate is further improved; through the arrangement of the fixing sleeve and the fixing block, the fixing sleeve and the fixing block are connected in a clamped mode, the fixing sleeve and the fixing block are fixed in a threaded mode through the fixing rod, the arrangement of the fixing sleeve and the fixing block is convenient to disassemble and assemble, construction is convenient, and the convenience of installation and construction is improved.

This invention discloses a pre-lithiated SiOx composite electrode material, its preparation method, and its applications, belonging to the field of material preparation technology. The preparation method includes: pre-treating a silicon oxide precursor with milling beads using a wet ball milling process under an inert atmosphere; forming a dispersion system by dispersing a metal salt and a fibrous template material in a lithium hydroxide solution; mixing the two systems and then inducing precipitation with an alcohol solvent to form a precursor; finally, acid treatment, washing, drying, and high-temperature carbonization under a protective atmosphere to obtain the final composite material. This material has a porous structure, with silicon oxide uniformly embedded in a highly graphitized carbon matrix. This invention features a simple process, stable interfacial bonding, effectively solves the volume expansion problem of silicon-based materials, and significantly improves electrochemical performance and cycle stability, making it particularly suitable as a negative electrode material for electrochemical energy storage devices such as lithium-ion batteries.