20results about How to "Strong interface" patented technology

The invention relates to the technical field of rubber additives, in particular to a cross-linking agent for rubber and a preparation method. The cross-linking agent for rubber is prepared from the following raw materials in parts by mass: 5 to 10 parts of polystyrene microspheres, 1 to 5 parts of tetramethyl orthosilicate, 0.1 to 0.5 part of copper sulfate, 1 to 2 parts of a surfactant, 1 to 2 parts of vinyl trimethoxy silane, 0.01 to 0.1 part of an initiator, 2 to 6 parts of vinyl acetate, 1 to 2 parts of cobalt acetate, 0.01 to 0.1 part of yttrium chloride and 1 to 2 parts of graphene oxide. Transition metal salt and rare earth are compounded and loaded on the surface of grafted silicon dioxide, the specific surface area of the metal salt can be effectively increased, the coordination efficiency is improved, the adding amount of the metal salt is reduced, meanwhile, self-repairing of crosslinking and reinforcing functions can be effectively achieved, and the crosslinking agent is high in stability and has higher environmental tolerance.

The invention discloses a polyphenylene sulfide fiber pps filter bag, and relates to the technical field of filter materials. The invention discloses a preparation method of a polyphenylene sulfide fiber pps filter bag, which comprises the following steps: carrying out melt extrusion granulation on polyphenylene sulfide and modified silicon dioxide to obtain granules; carrying out melt-blowing spinning, heat setting and hot rolling on the granules to obtain a pps filter bag; the modified silicon dioxide is obtained by modifying aminated mesoporous silicon dioxide with ethylenediamine tetraacetic anhydride and then carrying out epoxy treatment with epichlorohydrin. The prepared modified silicon dioxide is added into polyphenylene sulfide for granulation and melt-blowing treatment, the obtained polyphenylene sulfide fiber has the advantage of being good in mechanical property, the prepared polyphenylene sulfide fiber is used for preparing a pps filter bag, the prepared filter bag is applied to filtering treatment of high-temperature flue gas, the advantages of oxidation resistance and cross-linking resistance are achieved, and the application prospect is wide. And high filtering precision and trapping effect are achieved when smoke is filtered in a hot oxygen environment.

The invention relates to a continuous preparation method of a high-strength titanium carbide guided bone regeneration film, which comprises the following steps of: blending titanium carbide (Ti3C2Tx) and a sericin solution, continuously assembling the mixed aqueous solution into a hydrogen bond cross-linked titanium carbide (HBM) composite film by a roll-to-roll auxiliary blade coating method, and finally soaking the HBM composite film in a zinc chloride (ZnCl2) aqueous solution to obtain the high-strength titanium carbide guided bone regeneration film. And preparing the titanium carbide (SBM) composite film with orderly cross-linked hydrogen bonds and ionic bonds. The highest tensile strength of the SBM composite film is 755 MPa, the corresponding Young modulus of the SBM composite film is 32.9 GPa, and the toughness of the SBM composite film is 17.4 MJ / m < 3 >. In addition, the SBM composite film also has excellent in-vivo bone regeneration performance, and after the SBM composite film is implanted into a rat skull defect area for 8 weeks as a guided bone regeneration film, the ratio of the volume of a new bone to the total volume of the bone defect area is 77.4%.

The invention discloses a methanol oxidation catalyst and a preparation method thereof, and relates to the field of catalysts. The nano titanium ruthenium oxide prepared by a low-temperature hydrothermal method is used as the carrier, the titanium ruthenium oxide crystal phase is of an anatase structure, the nano titanium ruthenium oxide crystal phase and the deposited nickel cobalt manganese metal form a composite structure, a synergistic effect is achieved, and the catalytic performance on methanol is improved. Titanium oxide ruthenium metal is pretreated and then soaked in a self-made water-phase nanometer nickel solution to form a first nanometer nickel metal layer, then surface modification is conducted through a silane coupling agent, then the first nanometer nickel metal layer is placed in a water-phase nanometer cobalt solution, the steps are repeated, a second nanometer cobalt particle layer and a third nanometer manganese particle layer are deposited, and the nanometer nickel metal layer is obtained. And finally, carrying out reduction treatment to obtain the methanol oxidation catalyst with the nano nickel-cobalt-manganese metal layer deposited by taking the titanium ruthenium oxide as the carrier. The catalyst prepared by the invention and methanol generate efficient chain exothermic reaction, the catalytic oxidation is complete, and the catalytic efficiency is high.

The invention discloses a hot-coated high-barrier heavy-wrapping roll film and a preparation method thereof. Belongs to the technical field of packaging materials. The roll film sequentially comprises an outer-layer base material film, a middle barrier layer and an inner-layer heat sealing film. The middle barrier layer is formed by drying and curing nano-composite barrier liquid coated on the inner surface of the outer-layer base material film; the nano-composite barrier liquid comprises polyvinyl alcohol, a surface-modified inorganic nano-material dispersion liquid, a polymer emulsion, a cross-linking agent and a wetting agent. After being preheated, the barrier liquid is coated by micro gravure, is dried through three stages of rapid shaping, deep crosslinking and high-temperature densification in sequence, and is finally compounded with an inner-layer heat-sealing film in a solvent-free manner. Through precise coupling of a synergistic effect among specific components and a multi-stage drying process, the roll film has excellent initial oxygen barrier property, water vapor barrier property, excellent stability in a high-temperature and high-humidity environment and high barrier stability after simulating a dynamic mechanical load of heavy packaging and transportation.

The invention discloses low-modulus anti-fatigue composite hydrogel as well as a preparation method and application thereof. According to the composite hydrogel, low-modulus hydrogel is used as a soft matrix layer, and stretchable fabric is used as a reinforced knitted fabric layer; the preparation method comprises the following steps: putting the stretchable fabric into a hydrogel pre-polymerization solution, and forming a three-dimensional polymer network through a circulating freeze-thaw treatment method. And then putting the hydrogel into a drying oven, and carrying out drying and annealing treatment to form the annealed composite hydrogel. And finally, immersing the annealed composite hydrogel in deionized water until the composite hydrogel is completely swelled to form the required composite hydrogel. The invention also discloses application of the composite hydrogel as an artificial heart valve prosthesis. The composite hydrogel has the advantages of biological tissue-like stress-strain behavior, low modulus, high fatigue threshold value and the like.

According to the quantum dot polyurethane emulsion water-based paint provided by the invention, the water-based polyurethane emulsion with a high cross-linked network, fluorescence performance and an ultraviolet absorption function is prepared from the polyurethane emulsion, particularly, the water-based polyurethane emulsion has good transparency, photoluminescence and ultraviolet absorption performance, and can be applied to the field of building indication paint.

The present application relates to the technical field of protective films, and in particular to an impact-resistant protective film and a preparation method thereof. An impact-resistant protective film comprises: a PET light release film layer, an OCA optical adhesive layer, an optical-grade PET film layer, a silicone layer and a PET heavy release film, wherein the PET light release film layer, the OCA optical adhesive layer, the optical-grade PET film layer, the silicone layer and the PET heavy release film are sequentially bonded and connected from top to bottom, wherein the OCA optical adhesive layer, by mass, comprises the following preparation raw materials: n-propyl acrylate, isobornyl methacrylate, hydroxyethyl acrylate, diluent, glycidyl acrylate, modified silica, photoinitiator, cross-linking agent and antioxidant; the thickness of the OCA optical adhesive layer is 190‑210 μm. The impact-resistant protective film of the present application has beneficial technical effects such as high light transmittance, good impact resistance, strong adhesion, excellent installation effect and strong durability.

The invention belongs to the technical field of adhesives, and particularly relates to a low-modulus high-thermal-conductivity acrylate-based chip mounting adhesive and a preparation method thereof.The low-modulus high-thermal-conductivity acrylate-based chip mounting adhesive is prepared by taking acrylate as a base material and taking modified diamond and the like as additives through mixing, the flexible polymer chain segment structure contains a large amount of hydroxyl substituent groups generated by ring-opening reaction, so that the flexible polymer chain segment structure can participate in the subsequent curing process of the acrylate mounting adhesive, and the diamond and the acrylate mounting adhesive can generate a good interface effect, so that a dispersing agent is more uniformly added into acrylate, and the purposes of adding a small amount of the dispersing agent and adding a small amount of the dispersing agent are achieved. In addition, in the curing process, the flexible macromolecular chain segment is introduced into the acrylate structure, and the modulus of the mounting adhesive can be effectively reduced by utilizing the flexibility of the flexible macromolecular chain segment.

The invention discloses a biological environment-friendly rubber composition for outsoles of snow boots and a preparation method of the biological environment-friendly rubber composition. The biological environment-friendly rubber composition for the snow boot outsole adopts modified cellulose powder as a rubber reinforcing material, and a preparation method of the modified cellulose powder comprises the following steps: S1, dispersing cellulose formate in a binary inorganic salt system composed of AlCl3, ZnCl2 and water to obtain a cellulose formate aqueous dispersion; s2, dropwise adding a coupling agent solution into the cellulose formate aqueous dispersion, and heating to obtain a cellulose formate-coupling agent dispersion; s3, the cellulose formate-coupling agent dispersion liquid is placed in a coagulating bath of deionized water for gas fumigation, and regenerated cellulose hydrogel is obtained; and S4, performing vacuum treatment on the regenerated cellulose hydrogel, and then performing freezing and vacuum drying in sequence to obtain the rubber modified cellulose powder. The rubber composition disclosed by the invention is biological and environment-friendly, and the prepared sole has excellent non-slip performance, wear resistance and rubber low-temperature performance.

The invention discloses a coating slurry and an aluminum foil double-side coated carbon material prepared from the coating slurry, the coating slurry comprises a reaction product of vinyl silicone oil, hydrogen-containing silicone oil, inorganic powder, a tackifier, an auxiliary agent and a diluent, and the coating slurry comprises 20-30 parts by mass of vinyl silicone oil, 2-10 parts by mass of hydrogen-containing silicone oil, 27-48 parts by mass of inorganic powder, 2-10 parts by mass of the tackifier, 0.55-1.10 parts by mass of the auxiliary agent and 30-50 parts by mass of the diluent. The coating slurry disclosed by the invention is high in adhesive force with a base material and excellent in thermal conductivity and electrical conductivity. The aluminum foil double-sided carbon-coated material prepared by using the coating slurry is high in interfacial force and cohesive force, relatively good in tensile failure resistance, capable of achieving relatively good mechanical properties, good in heat-conducting and electric-conducting properties, and also has the characteristic of long service life.

The application discloses a kind of porous composite polymer solid electrolyte and preparation method and solid sodium ion battery thereof.The porous composite polymer solid electrolyte of the application is made of deep eutectic solvent, additive, polymer solution and sodium superionic conductor;The deep eutectic solvent is composed of sodium ion-containing hydrogen bond acceptor and hydrogen bond donor, the sodium ion-containing hydrogen bond acceptor is selected from any one of sodium hexafluorophosphate, sodium tetrafluoroborate, sodium dihydrogen phosphate, sodium difluoro oxalate borate, sodium bis-trifluoromethyl sulfonamide, sodium bisfluorosulfonamide, sodium perchlorate, sodium nitrate, sodium chloride and sodium difluorophosphate;The additive is ethylene carbonate and propylene carbonate;The polymer solution is composed of polymer and organic solvent;The mass ratio of sodium superionic conductor and polymer is 1: (2-5).The porous composite polymer solid electrolyte of the application has excellent ion conductivity, flame retardancy, strong mechanical properties and excellent safety.

The present application relates to a kind of high-temperature-resistant high-toughness prepreg and its preparation method, mainly solve the hot melt method prepreg with thermoplastic resin toughened epoxy resin matrix process operability is poor and the problem of poor carbon fiber impregnation effect, by using a kind of prepreg, with total mass is 100% by weight, including the following components: epoxy resin matrix: 22~35%;Reinforcing fiber: 50~70%;Toughening layer: 8~15%;Its characterized in that the toughening layer is at least one of the combination of containing epoxy resin and thermoplastic resin;The epoxy resin matrix is at least one of the combination of containing epoxy resin, thermoplastic resin and curing agent;The toughening layer is located in the side of the reinforcing fiber layer with the epoxy resin matrix technical scheme, preferably solve the problem, can be used for the preparation of various carbon fiber composite material main load-bearing structure.

The preparation equipment comprises a fusing machine, a desensitizing agent preparation tank, a powder feeder and a desensitizing machine, the fusing machine comprises a first feeding port and a second feeding port, a discharging port of the fusing machine is connected with a feeding port of the desensitizing agent preparation tank, and a discharging port of the desensitizing agent preparation tank is connected with the desensitizing machine; a material outlet of the powder feeder is connected with the insensitization machine, the insensitization machine is provided with a material outlet, the petroleum ether collecting device comprises a cyclone separator, a circulating water heat exchanger and a petroleum ether collecting tank which are sequentially connected to the insensitization machine, and coating microcrystalline wax is dissolved in petroleum ether to prepare the insensitization agent. A desensitizing agent and ammonium perchlorate are mixed according to a proportion, microcrystalline wax dissolved in petroleum ether is separated out and uniformly coats the surface of solid ammonium perchlorate, the surface of ammonium perchlorate is coated with an efficient desensitizing material microcrystalline wax, good interface interaction between the efficient desensitizing material microcrystalline wax and ammonium perchlorate particles is achieved, and the stability in the penetration process is improved.

The invention relates to the technical field of electrode foil manufacturing, in particular to a Ti / Al composite electrode foil, a manufacturing method and an electrolytic capacitor. The manufacturing method of the Ti / Al composite electrode foil comprises the following steps: S1, surface pretreatment; s2, composite material sheet synthesis; s3, carrying out plasma enhanced chemical vapor deposition on the composite material sheet; s4, the pretreated aluminum foil obtained in the step S1 and the composite material sheet deposited with the titanium film obtained in the step S3 are soaked in a self-assembly agent solution with the concentration being 1-5 wt% for 0.5-1 h and then dried at the temperature of 80-100 DEG C, and soaked aluminum foil and soaked composite material sheets are obtained; and S5, compounding and combining. According to the Ti / Al composite electrode foil, the manufacturing method and the electrolytic capacitor provided by the invention, the problem that the performance of the composite electrode foil is affected due to poor bonding of titanium and aluminum interfaces in the Ti / Al composite electrode foil in the prior art is solved.

The invention discloses a strong-interface dual-connection carbon fiber epoxy resin composite material and a preparation method thereof.The preparation method of the composite material comprises the following steps that S1, hydroxyethyl acrylate serves as a grafting monomer, ammonium ferrous sulfate and hydrogen peroxide serve as initiators to conduct grafting reaction on PVA, and PVA-g-PHEA is prepared; s2, carbon fibers subjected to desizing treatment are soaked in PVA-g-PHEA slurry for sizing, then the sized carbon fibers serve as a reinforcement body, epoxy resin serves as a matrix, forming is conducted, and the strong-interface double-connection carbon fiber epoxy resin composite material is prepared. According to the invention, the combination effect between the carbon fiber and the epoxy resin can be obviously improved, so that the performance of the strong-interface dual-connection carbon fiber epoxy resin composite material is obviously improved.

The invention discloses a preparation method and application of double-layer hydrogel with fast driving performance and efficient recovery performance, and belongs to the technical field of flexible electronics. The invention aims to solve the problems that the interface of the existing double-layer hydrogel layer is fragile, the driving speed is low, and the original shape is difficult to recover or the recovery time is relatively long after the driving is completed. The method comprises the following steps: 1, preparing functional layer hydrogel; and 2, preparing functional layer hydrogel / control layer hydrogel. The method is used for quickly driving an actuator. The invention is used for preparation and application of the double-layer hydrogel with both rapid driving property and efficient recovery property.

The invention provides a preparation method of a polytetrafluoroethylene composite film for a friction nano-generator. The preparation method comprises the following steps: preparing composite filler slurry, mixing polytetrafluoroethylene dispersion liquid with the composite filler slurry, and then performing film-forming drying, sinter molding and rolling to prepare the polytetrafluoroethylene composite film. The polytetrafluoroethylene composite membrane material provided by the invention has the characteristics of high friction power generation efficiency, excellent mechanical properties, good membrane structure uniformity and stability, flexibly adjustable thickness, large breadth and simple and feasible preparation process.

This invention discloses a toughened-self-healing composite modified No. 50 Grade A asphalt and its preparation method, belonging to the technical field of road engineering materials. The asphalt comprises the following raw materials: 100 parts of No. 50 Grade A road petroleum asphalt; 5.0-8.0 parts of functional monomer A; 1.0-4.0 parts of self-healing microcapsules; 0.04-0.112 parts of initiator; and 0.05-0.24 parts of crosslinking agent. The functional monomer A is composed of styrene and butyl acrylate in a mass ratio of 25:75-35:65. A one-step preparation method is used, where styrene and butyl acrylate are copolymerized in situ in the asphalt and lightly crosslinked to achieve toughening, while the introduction of self-healing microcapsules imparts a self-healing function. This invention improves the low-temperature ductility, high-temperature stability, storage stability, and damage self-healing ability of asphalt, and the process is simple and controllable, making it suitable for high-grade roads and heavy-duty traffic pavements.

The utility model relates to the field of computers, and discloses a multifunctional debugger for a TypeC interface, which comprises a standard interface and a user-defined interface, a USB HUB chip expands USB signals into four paths of signals of USB0, USB1, USB2 and USB3, and the USB0 and the USB1 are respectively connected with at least four paths of UART signals through a USB to serial port chip; the USB2 realizes an ST-LINK interface communication function through a single chip microcomputer; the USB3 is connected to the custom interface through the analog switch to realize a USB interface function; the analog switch is controlled by a mechanical single-pole double-throw switch and is used for switching the UART / I2C interface and the USB / ST-LINK interface; and the LED indicating lamp displays the data transmission state of the UARTxTXD and the data transmission state of the UARTxRXD. According to the invention, the number of interfaces is increased, and functions of debugging, indicating lamp display and switch switching are realized.