19results about How to "Improve adhesion stability" patented technology

The invention relates to the field of composite materials, in particular to a screen cloth composite TPU film and a preparation method thereof. The TPU film is prepared by the following steps: carrying out melt extrusion on TPU particles, and calendaring to form the TPU film; the mesh cloth is pretreated, specifically, the TPU film is smashed, and TPU particles are obtained; spraying TPU particles into the mesh cloth, filling the TPU particles into meshes of the mesh cloth, and heating to melt the TPU particles to obtain pretreated mesh cloth; a TPU film is attached to at least one face of the pretreated mesh cloth, hot pressing is conducted, and the mesh cloth composite TPU film is obtained. The TPU film is crushed into the TPU particles and sprayed into the mesh cloth, so that the meshes of the mesh cloth are filled with the TPU particles, and the TPU particles are fused and tightly combined with the mesh cloth in the heating process, so that the adhesion stability between the mesh cloth and the TPU film is effectively improved, and the problems of infirm adhesion, cracking and the like easily occurring in a traditional method are solved.

The invention relates to solvent wiping resistant UV ink and a preparation method thereof, and belongs to the technical field of ink. The UV ink is prepared from the following components: 15 to 20 weight percent of pigment, 1.9 to 2.4 weight percent of photoinitiator, 5.5 to 7.2 weight percent of organic silicon additive, 1.5 to 2 weight percent of wetting dispersant, 1.2 to 1.6 weight percent of flatting agent, 1 to 1.3 weight percent of defoaming agent, 1.4 to 1.8 weight percent of covering agent, 16 to 22 weight percent of cosolvent and the balance of acrylate binder, the organosilicon auxiliary agent contains multiple silicon chains, quaternary ammonium structure in-situ modification reduces interfacial tension between the silicon chains and an acrylate matrix and facilitates migration and spreading of the silicon chains to the surface of the ink layer, and the quaternary ammonium structure promotes photocuring crosslinking of acrylate, so that a silicon-rich high-crosslinking protective layer is formed on the surface of the ink layer, and swelling and friction loss of a solvent are effectively resisted.

The invention provides a modified polyglutamic acid-based tissue adhesive as well as a preparation method and application thereof. The tissue adhesive is composed of the following components: 1-30 wt% of acidic aldehyde polyglutamic acid; 1 to 15 wt% of a linear protein; 1 to 15 wt% of spherical protein; and the balance of water. The tissue adhesive provided by the invention has the advantages of self-healing performance, low underwater swelling rate and stable adhesion to wet tissues in a physiological environment, and can be applied to rapid hemostasis of dynamic wet tissue wounds in the physiological environment and sealing of wound liquid leakage. Experiments show that the tissue adhesive is high in tissue adhesion stability in a wet physiological environment, and the adhesion strength of the tissue adhesive to wet pigskin tissues can reach 37.4 kPa or above after the tissue adhesive is placed for 12 h under the physiological condition.

The magnetic pole fixing and limiting structure comprises a stator and a rotor, the rotor is located in the stator, an air gap is formed between the rotor and the stator, a plurality of permanent magnets are arranged on the outer side of the rotor in the circumferential direction, the permanent magnets are parallel to the axis of the rotor, the rotor is provided with installation grooves corresponding to the permanent magnets, and the installation grooves correspond to the permanent magnets. The permanent magnets are inserted into the mounting grooves, the inner walls of the mounting grooves are evenly covered with magnetic steel glue, the rotor adheres and fixes the permanent magnets through the magnetic steel glue, the rotor is provided with two sets of positioning discs in the axial direction, all the permanent magnets are located between the two positioning discs, the positioning discs are provided with fixing screws, and the fixing screws penetrate through the positioning discs to be in threaded connection with the rotor. The two axial ends of the permanent magnet are provided with positioning parts, the end faces, away from the rotor axis, of the positioning parts are arranged to be abutting faces, the abutting faces gradually approach the rotor axis in the direction away from the permanent magnet, the side, close to the permanent magnet, of the positioning disc is fixedly provided with a positioning ring in the circumferential direction, and the ends, away from the permanent magnet, of the positioning parts are located in the positioning ring. The installation stability of the permanent magnet is improved, and the installation requirement of the permanent magnet in a large surface-mounted permanent magnet motor is met.

The invention discloses a GO composite membrane for high-selectivity separation of a low-molecular-weight cationic dye as well as a preparation method and application of the GO composite membrane. The composite membrane is constructed by coating a polymer ultrafiltration base membrane with polydopamine and alternately depositing composite graphene oxide and partially reduced graphene oxide. Wherein the composite graphene oxide is prepared by crosslinking crown ether amine and partially reduced graphene oxide. A cavity structure in the crown ether amine molecule can generate electrostatic interaction with the cationic dye, so that the selective interception of the composite membrane on the cationic dye is improved. The performance of the composite membrane can be optimized by controlling parameters such as a crown ether amine structure, the reduction degree of the graphene oxide, the loading proportion of the composite graphene oxide and the graphene oxide, and efficient separation of dyes with different molecular weights and charge types is realized. The GO composite membrane has high selectivity on low-molecular-weight cationic dyes, and is suitable for industrial printing and dyeing wastewater treatment, efficient dye separation and recovery and environmental pollution treatment.

The utility model relates to the technical field of decorative plates, in particular to a building outer wall decorative plate, which is characterized in that the decorative plates are sequentially adhered to a wall surface, so that four end grooves among the decorative plates can form a circular groove, bolts on a seat body can be sequentially embedded into insertion holes in the end grooves, and the tail ends of the bolts can be nailed into the wall surface. The seat body can be adaptively mounted in a circular groove formed by the four end grooves, so that the splicing stability between the decorative plates can be improved through inlaying mounting between the plug pins and the plug holes, and the decorative plates and other plates can be prevented from falling off; the tail end of the bolt is nailed into the wall surface, so that the adhesion stability between the decorative plate and the wall surface can be improved; meanwhile, the decorative plates can be separated through the partition plates on the seat body, so that equal intervals can be reserved between the decorative plates, workers can conveniently fill the decorative plates with the seam beautifying agent in the later period, meanwhile, the decorative plates can be supported through the partition plates, and the installation stability of the decorative plates can be further improved.

The present application relates to the field of biological adhesive materials, and discloses a biological resin glue and its preparation method and application. A biological resin glue is prepared from the following raw materials in parts by weight: 40-50 parts of vegetable oil, 25-35 parts of thermoplastic synthetic rubber, 20-30 parts of hydrogenated petroleum resin, 4-6 parts of polyisobutylene, 4-8 parts of stabilizer, and 0.5-2 parts of antioxidant; the thermoplastic synthetic rubber is composed of SBS, tetraethylene glycol diacrylate, allyl glycidyl ether, dibutyl itaconate, diluent and catalyst; its preparation method is: mixing, kneading, tableting and discharging, cooling and molding. The preparation method of the present application is simple, and the prepared biological resin glue has good softness, skin-friendliness, resilience and adhesion stability. It is used in invisible underwear and can maintain good fitting stability after multiple uses or washing.

The invention discloses a Micro-LED micro display array and a preparation method thereof, and relates to the technical field of semiconductors, and the Micro-LED micro display array comprises a first stress release group layer which comprises a first Ti layer (the thickness is A1), a first Pt layer (the thickness is B1) and a first Au layer (the thickness is C1) which are stacked in sequence; the second stress release group layer comprises a second Ti layer (with the thickness of A2), a second Pt layer (with the thickness of B2) and a second Au layer (with the thickness of C2) which are stacked in sequence, 0.3 A1 < = A2 < = 0.5 A1, 2B1 < = B2 < = 3B1, and 2C1 < = C2 < = 3C1. According to the method, the internal stress regulation and control effect of the sapphire substrate GaN epitaxial wafer and the silicon-based CMOS driving wafer in the wafer-level bonding process can be effectively improved, the risk of wafer fragmentation can be effectively reduced, and therefore the production yield of the Micro-LED micro display array is guaranteed.

This invention discloses a hydrogel patch for repairing gastric perforation and its preparation method, belonging to the field of biomedical materials technology. The preparation method is as follows: Acryloylvaline, acrylic acid, methylenebisacrylamide, compound A, and a photoinitiator are dissolved in an alcohol solvent, and after defoaming, a precursor solution is obtained. The precursor solution is then placed in a mold and cured by ultraviolet light. The resulting hydrogel is immersed in a hydrochloric acid solution to displace the alcohol solvent, yielding the hydrogel patch for repairing gastric perforation. The hydrogel patch provided by this invention has advantages such as resistance to strong acid corrosion, good biocompatibility, low swelling rate, and stable adhesion under fluctuating pH conditions. This strong and stable adhesion ensures that the hydrogel can adhere reliably and persistently to the gastric perforation site in a dynamic gastric acid environment, providing a stable platform for drug delivery, thereby potentially shortening surgical time and promoting wound healing.

The present application belongs to the technical field of surface functional coating, and relates to a magnesium alloy photo-thermal super-hydrophobic coating with enhanced stability and a preparation method thereof. In view of the problems that the existing photo-thermal super-hydrophobic coating is prone to structural collapse, interface peeling and performance attenuation during service, a micron column structure is constructed on the surface of a magnesium alloy substrate as a support framework, and a composite coating composed of multi-walled carbon nanotubes, titanium dioxide and modified epoxy resin is sprayed on the surface of the micron column structure. The modified epoxy resin introduces a low surface energy component and enhances the interface bonding capacity of the coating and the substrate. Through the synergistic effect of microstructure support and interface enhancement, the stability of the coating under the action of mechanical wear, chemical corrosion, high-low temperature cycle and water environment is significantly improved. On this basis, the coating still maintains good super-hydrophobicity, photo-thermal performance and anti-icing and deicing performance, and is suitable for magnesium alloy surface protection and anti-icing applications under complex environmental conditions.

This application relates to the field of silicone rubber, and more specifically, to a high-performance weather-resistant and anti-fouling silicone rubber for encapsulation / bonding of electronic components and its preparation method. It comprises the following raw materials in weight percentages: 50-65% base compound; 20-30% insulating filler; 5-8% A synergist; 2-5% B synergist; the balance being processing aids; A synergist is a hydrogen-containing silicone resin; B synergist is composed of cage-type polysilsesquioxane containing activating groups, tetravinyltetramethylcyclotetrasilazane, and silicone wax in a weight ratio of 1:(0.5-1):(1-3); and the compound system of synergist and B synergist can bond with the silicone rubber obtained from the base compound and insulating filler to form a dense and stable three-dimensional cross-linked network after curing. This not only possesses superior physical properties but also excellent bonding strength, low shrinkage, weather resistance, and anti-fouling properties, improving the structural stability and long-term reliability of electronic components.

The present invention relates to a method for treating a needle-carrying suture with an antibacterial coating. The needle-carrying suture is composed of a connected suture needle and a suture. After a triclosan coating is formed on the surface of the suture needle, the needle-carrying suture is placed in a package and sterilized with ethylene oxide and dried in sequence. After the treatment is completed, the antibacterial coating is transferred from the suture needle to the suture. The method for treating a needle-carrying suture with an antibacterial coating of the present invention forms a uniform antibacterial coating with a high adhesion amount on the suture, which can ensure that the antibacterial agent directly acts on the suture needle and the suture that are in the most direct contact with the surgical site, thereby increasing the antibacterial property and effectively inhibiting the colonization of bacteria on the suture and the inner package.

The present invention aims to provide a multilayer body of vulcanized rubbers, the multilayer body exhibiting excellent adhesion stability, a method for producing the multilayer body, and a tire including the multilayer body. A multilayer body of the present invention includes a first layer made of vulcanized rubber, an adhesive layer made of a cured product of a cyanoacrylate-based adhesive, a second layer made of vulcanized rubber, and a sensor layer including a sensor, in this order. The cured product has a softening point of 71°C or higher.

The present invention discloses a Micro-LED micro display array and a preparation method thereof, which relates to the field of semiconductor technology, and comprises: a first stress release layer, the first stress release layer comprising a first Ti layer (thickness A) stacked in sequence; 1 )、The first Pt layer (thickness B 1 ) and the first Au layer (thickness C 1 ); a second stress release layer, the second stress release layer comprises a second Ti layer (thickness A) stacked in sequence 2 )、The second Pt layer (thickness B 2 ) and the second Au layer (thickness C 2 ), 0.3A 1 ≤A 2 ≤0.5A 1 , 2B 1 ≤B 2 ≤3B 1 , 2C 1 ≤C 2 ≤3C 1 The present invention can effectively improve the internal stress regulation effect of the sapphire substrate GaN epitaxial wafer and the silicon-based CMOS driver wafer during the wafer-level bonding process, and can effectively reduce the risk of wafer breakage, thereby ensuring the production yield of the Micro-LED micro display array.

The utility model discloses an easy-to-wear sanitary towel for visually impaired people, which belongs to the technical field of sanitary towels, aims at solving the problems that the visually impaired people are difficult to wear sanitary towels, the sanitary towels are easy to misplace and the menstrual blood absorption amount is small, and comprises coating films and an adhesive layer which is arranged at the butt joint position of the coating films. Hot-press sealing openings are formed in the two sides of the coating film, a connecting belt is fixed to one side of the adhesive layer, one side of the connecting belt extends to one side of the coating film, and a pull belt is fixed to the side wall of one side of the connecting belt; the sanitary towel body is arranged on the inner side of the coating film; according to the sanitary napkin, through the arrangement of the connecting belt and the pull belt, visual impaired people can conveniently and rapidly disassemble the coating film, can conveniently and accurately position the front and back positions of the sanitary napkin body and can conveniently wear the sanitary napkin body, and the situation that the sanitary napkin body is broken when carried is ensured to be avoided through the arrangement of the hot-press sealing opening.

The utility model relates to a heat exchange chip and a heat exchange core structure. The technical problem that an existing chip body is unstable in connection is solved. Comprising a hexagonal chip body, the two ends of the two corresponding side edges of the chip body are connected through longitudinal ribs which are longitudinally distributed and arranged in parallel, and a plurality of transverse ribs which are sequentially and transversely distributed and arranged in parallel are arranged between the two longitudinal ribs. The mutually staggered ends of two adjacent transverse ribs in the transverse ribs are respectively provided with bent ribs extending to the other two corresponding side edges of the chip body, and the rest two corresponding side edges of the chip body are provided with inclined plane diversion structures. The utility model has the advantages that the staggered transverse ribs and bent ribs can improve the separation air duct, buffer the air speed and ensure the adhesion effect. And the air speed buffering effect can be further improved through the inclined face flow guide structures, the adhesion stability between the chip bodies is further improved, the service life of the heat exchange core structure is prolonged, and the user experience is improved.

The invention relates to the field of heat-conducting insulating materials, and discloses a heat-conducting insulating sheet and a preparation method thereof. The heat-conducting insulating sheet comprises an insulating layer and a heat-conducting layer, the insulating layer is a polyimide film, and the heat-conducting layer is prepared by curing a heat-conducting adhesive prepared from the following raw materials in parts by weight: 10-20 parts of methyl phenyl vinyl silicone rubber, 40-50 parts of vinyl silicone oil, 15-20 parts of methyl hydrogen-containing silicone oil, 35-45 parts of heat-conducting filler, 4-8 parts of a tackifier, 1-2 parts of dimethyl silicone oil and 0.5-1 part of a catalyst; the heat-conducting filler is prepared from aluminum oxide, boron nitride, a coupling agent and a cross-linking agent; the cross-linking agent is composed of pentaerythritol triallyl ether, trimethylallyl isocyanate and tetramethyl divinyl disilazane, and the cross-linking agent is composed of pentaerythritol triallyl ether, trimethylallyl isocyanate and tetramethyl divinyl disilazane; the preparation method comprises the following steps: uniformly mixing the raw materials to prepare heat-conducting glue, coating the surface of the insulating layer with the heat-conducting glue, and vulcanizing. The preparation process is simple, and the prepared heat-conducting insulating sheet is good in heat conductivity and insulativity, good in attaching stability and free of damage and adhesive residues after being torn off.

The invention discloses a multi-layer colorful ceramic and a preparation method thereof, and belongs to the field of building material preparation. Pyrrolidone modified lignin sulfonate and 2-(dimethylamino) ethyl methacrylate are compounded and added, so that an adhesion ligand can be provided for a ceramic pigment, the dispersion stability of the ceramic pigment is obviously improved, and antimony doped tin dioxide is combined, so that the multi-layer colorful ceramic is prepared. According to the present invention, the electrostatic adsorption can be effectively reduced, the stability of the system can be further promoted, the adhesion stability with the dry particles can be increased by adding the fatty alcohol-polyoxyethylene ether and the sodium phosphate, and the uniform adhesion of the dry particles can be further promoted under the appropriate surface tension under the action of the surfactant so as to form the uniformly dispersed dry particle layer; besides, the dry particle layer is preferably selected from transparent frit dry particles and zircon sand dry particles, so that the wear resistance of the ceramic can be improved, the ceramic appearance with a multilayer colorful effect can be formed, and the apparent quality of the ceramic is excellent.

The invention provides stainless steel, a production method thereof and an electrolytic copper negative plate. The stainless steel comprises the following chemical components in percentage by weight: 0.01%-0.03% of C; si < = 1.0%; mn < = 2.0%; p is less than or equal to 0.045%; s < = 0.002%; 16.50% to 17.50% of Cr (chromium); ni: 10.0% to 10.5%; 2.0% to 2.5% of Mo; n: < = 0.11%; cu: 0.2%-0.7%; 0.1%-0.5% of Co, and the balance Fe and other inevitable impurity elements. The invention further provides a production method of the stainless steel and an electrolytic copper negative plate made of the stainless steel. The current density and the corrosion resistance of the electrolytic copper cathode plate made of the stainless steel are improved, and the electrolytic copper cathode plate has good copper attaching stability, long service life and low production cost.