8results about How to "Avoid Interface Defects" patented technology

This application provides a modified photocurable oligomer, its preparation method, and a photocurable 3D printing resin. The preparation method of the modified photocurable oligomer includes the following steps: providing an acrylic monomer, a triblock thermoplastic elastomer, a coupling agent, and a polyurethane acrylate; dissolving the triblock thermoplastic elastomer in the acrylic monomer to obtain a block copolymer mixed solution; adding the coupling agent to the block copolymer mixed solution to obtain a modified block copolymer mixed solution; adding the polyurethane acrylate to the modified block copolymer mixed solution, and mixing to obtain the modified photocurable oligomer. The modified photocurable oligomer, its preparation method, and the photocurable 3D printing resin provided in this application use a triblock thermoplastic elastomer as a toughening reinforcing phase, and chemically modify its surface using a coupling agent, enabling it to form a strong chemical bond interface with the polyurethane acrylate after pre-dispersion in the acrylic monomer.

The application relates to a long-life electrochromic device with double-ion synergistic working and a preparation method thereof. The long-life electrochromic device with double-ion synergistic working comprises a first transparent electrode layer, an inorganic electrochromic layer, an electrolyte layer, a gel-based ion storage layer and a second transparent electrode layer which are sequentially stacked; the material of the electrolyte layer is at least one of aluminum salt, preferably aluminum silicate, aluminum phosphate, aluminum borate, aluminum perchlorate and aluminum chloride; and the gel-based ion storage layer is a gel-based solid-state electrolyte containing lithium salt.

The invention provides a laterally buried grating DFB laser and a preparation method thereof, through stacked arrangement of an N-type contact layer, an N-type limiting layer, an active layer, a P-type limiting layer and a P-type contact layer, lateral gratings are buried at two sides of a ridge waveguide and are close to the active layer, and by using a transverse coupling mechanism of the lateral gratings and an active layer light field, the lateral optical field of the N-type contact layer and the P-type limiting layer is formed. The grating coupling coefficient mainly depends on the lateral distance instead of the etching depth, so that the sensitivity of the device performance to the etching depth is reduced, and the performance stability of the laser is remarkably improved. Meanwhile, an additional etching stop layer does not need to be introduced in the preparation process of the structure, the epitaxial growth and etching process is simplified, the manufacturing cost is reduced, lattice mismatch, interface defects and additional light absorption loss caused by the etching stop layer are avoided, and the light output efficiency and long-term reliability of the laser can be effectively improved.

The application discloses an in-situ vacuum preparation system and a preparation method of a memristor, and belongs to the technical field of electronic device manufacturing. The in-situ vacuum preparation system comprises a glove box, and a vacuum collecting and connecting pipeline is connected to one side of the glove box; the vacuum collecting and connecting pipeline can be used for carrying out the following processes respectively: insulating material thermal evaporation, metal material thermal evaporation, reactive ion etching, ion beam etching, electron beam evaporation and magnetron sputtering; the insulating material evaporation and the electron beam evaporation both adopt an electron beam evaporation device; the metal material thermal evaporation and the magnetron sputtering both adopt a magnetron sputtering device; the reactive ion etching adopts a reactive ion etching device; and the ion beam etching adopts an ion beam etching device. Material deposition and electrode manufacturing in the preparation process of the memristor are carried out in the in-situ vacuum preparation system, material pollution and interface defects are avoided, the performance of the memristor is significantly improved, and the preparation process is simplified.

The application provides a low-temperature laminated co-extrusion adhesive film and a preparation method and a photovoltaic module, and relates to the technical field of photovoltaic devices.The low-temperature laminated co-extrusion adhesive film comprises a laminated EVA film layer and a TPO film layer, and the EVA film layer and the TPO film layer are fused at the interface part; the content of vinyl acetate in the EVA film layer is 15-40%, and the crosslinking degree of EVA is not less than 65%; the raw material for forming the TPO film layer comprises an ethylene-alpha olefin copolymer; the melt index of the ethylene-alpha olefin copolymer is 0.5-10 g / 10 min, and the melting point is 50-115 DEG C; the light transmittance of the low-temperature laminated co-extrusion adhesive film for light with a wavelength of 380-1100 nm is greater than 88%. The low-temperature laminated co-extrusion adhesive film provided by the application not only can realize low-temperature crosslinking, but also has high bonding performance with a base material and long-term anti-creep performance.

This invention relates to the field of triazine polymer preparation technology, specifically to a triazine polymer, a high-temperature resistant carbon fiber sizing agent, a preparation method, and applications. The main chain segment of the triazine polymer is a triazine structural unit. The triazine polymer is modified by synergistically introducing two different structures: R2 is a structural unit formed by removing hydroxyl hydrogen atoms from an aromatic dihydroxy compound with a rigid aromatic backbone or aromatic ketone structure, used to improve compatibility with high-temperature resistant thermoplastic resins; R3 is a structural unit formed by removing hydroxyl hydrogen atoms from an aromatic dihydroxy compound with a large-volume substituent or lactone structure, disrupting the tight packing of the molecular chain and improving the solubility of the polymer. The triazine polymer is used in the preparation of a carbon fiber sizing agent, giving the sizing agent excellent heat resistance. This sizing agent can withstand the high-temperature molding and processing environment of special engineering plastics, resulting in a novel carbon fiber sizing agent that simultaneously possesses excellent heat resistance and interfacial compatibility.

This invention relates to a self-removing, multi-layered underwater laser cladding material for wear and corrosion resistance, and its molding method. The invention addresses the problem of existing underwater laser cladding layers failing to simultaneously achieve high forming quality and good wear and corrosion resistance. In this invention, a performance-enhancing functional layer covers a core metal wire layer, which is then covered by an outer impurity-removing protective layer. The outer impurity-removing protective layer is composed of 94%–96% impurity-removing protective material, 3%–4% epoxy resin, and 1%–2% curing agent by mass fraction. Similarly, the performance-enhancing functional layer is composed of 94%–96% performance-enhancing material, 3%–4% epoxy resin, and 1%–2% curing agent by mass fraction. This invention achieves main body repair through the core wire, regulates the performance of the cladding layer through the performance-enhancing layer, and ensures that slag impurities float to the top of the cladding layer, purifying the molten pool. These three elements work synergistically to obtain a coating with excellent wear and corrosion resistance.

The invention belongs to the technical field of solid-state electrolytes, and particularly relates to a lithium lanthanum zirconium oxide and polyacrylonitrile composite solid-state electrolyte, a preparation method and application thereof and an all-solid-state battery. The preparation method comprises the following steps: 1) preparing cubic phase LLZTO powder; (2) carrying out surface silanization treatment on the cubic phase LLZTO powder under an acidic condition; 3) preparing polyacrylonitrile, a polyion liquid, a lithium salt and the cubic phase LLZTO of which the surface is silanized into composite electrolyte slurry at room temperature; and 4) casting the composite electrolyte slurry to form a film, and then performing vacuum drying to obtain the lithium lanthanum zirconium oxide and polyacrylonitrile composite solid electrolyte. The LLZTO and polyacrylonitrile composite solid electrolyte provided by the invention can integrate the advantages of organic and inorganic materials, solves the problem of contact between traditional polyacrylonitrile and LLZTO and a positive electrode side interface, and realizes a stable composite structure with high voltage resistance, high temperature resistance and high ionic conductivity.